/* Hikma 2025 - Styles */

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
    padding-top: 68px; /* Default for other pages (navbar only) */
}

/* Body padding on main page (approval bar + navbar) */
body.main-page {
    padding-top: 68px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Approval Pending Bar */
.approval-pending-bar {
    background-color: #8B0000;
    color: white;
    padding: 8px 0;
    text-align: center;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1001;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.approval-pending-bar p {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
}

.approval-pending-bar .mobile-text {
    display: none;
}

@media (max-width: 768px) {
    .approval-pending-bar .desktop-text {
        display: none;
    }
    
    .approval-pending-bar .mobile-text {
        display: block;
    }
}

/* Navigation */
.navbar {
    background: 
        linear-gradient(rgba(26, 26, 46, 0.95), rgba(26, 26, 46, 0.95)),
        url('../images/pattern.jpg') repeat-x;
    background-size: auto 100%;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
}

/* Navigation on main page (with approval bar) */
body.main-page .navbar {
    top: 0;
}

/* Adjust main content for fixed navbar */
body.main-page main {
    margin: 0;
    padding: 0;
}

body.main-page .hero {
    margin-top: 0 !important;
    padding-top: 0 !important;
    position: relative;
    top: 0;
}

/* Hide conference details on main page */
body.main-page .conference-details {
    display: none;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.logo-link:hover {
    opacity: 0.8;
}

.logo h1 {
    color: #42A5F5;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.6rem;
    flex-wrap: nowrap;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 0.5rem;
    border-radius: 5px;
    transition: all 0.3s ease;
    font-weight: bold;
    white-space: nowrap;
    font-size: 0.9rem;
}

.nav-menu a:hover,
.nav-menu a.active {
    background-color: #1565C0;
    transform: translateY(-2px);
}

/* Mobile Menu Toggle (Hamburger) */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    z-index: 1001;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: white;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* HIKMA Logo Styles */
.hero-logo {
    text-align: center;
    margin-bottom: 2rem;
    margin-top: 3rem;
}

.main-logo {
    max-width: 200px;
    height: auto;
    margin: 0 auto;
    display: block;
    filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.9))
            drop-shadow(0 0 8px rgba(30, 144, 255, 0.7))
            drop-shadow(0 0 12px rgba(135, 206, 235, 0.6))
            drop-shadow(0 0 16px rgba(70, 130, 180, 0.5))
            brightness(1.3);
    transition: transform 0.3s ease, filter 0.3s ease;
    background: none !important;
    background-color: transparent !important;
    border: 0 !important;
    border-radius: 0 !important;
    outline: 0 !important;
    box-shadow: none !important;
    padding: 0 !important;
    margin: 0 auto !important;
    vertical-align: top;
}

.main-logo:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 1))
            drop-shadow(0 0 12px rgba(30, 144, 255, 0.8))
            drop-shadow(0 0 18px rgba(135, 206, 235, 0.7))
            drop-shadow(0 0 24px rgba(70, 130, 180, 0.6))
            brightness(1.4);
}

.header-logo {
    max-width: 120px;
    height: auto;
    margin-right: 0px;
    display: inline-block;
    vertical-align: middle;
}

.header-logo:hover {
    transform: scale(1.05);
    transition: transform 0.3s ease;
}

.page-header-logo {
    max-width: 150px;
    height: auto;
    margin: 0 auto 1rem auto;
    display: block;
    filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.8))
            drop-shadow(0 0 8px rgba(25, 25, 112, 0.7))
            drop-shadow(0 0 12px rgba(72, 61, 139, 0.6))
            drop-shadow(0 0 16px rgba(138, 43, 226, 0.5))
            brightness(1.2);
    transition: filter 0.3s ease;
}

.page-header-logo:hover {
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.9))
            drop-shadow(0 0 12px rgba(25, 25, 112, 0.8))
            drop-shadow(0 0 18px rgba(72, 61, 139, 0.7))
            drop-shadow(0 0 24px rgba(138, 43, 226, 0.6))
            brightness(1.3);
}

/* Page-specific logo glow colors */

/* About page - sunlight color */
.about-header .page-header-logo {
    filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.9))
            drop-shadow(0 0 8px rgba(248, 248, 248, 0.8))
            drop-shadow(0 0 12px rgba(240, 240, 240, 0.7))
            drop-shadow(0 0 16px rgba(235, 235, 235, 0.6))
            brightness(1.2);
}

.about-header .page-header-logo:hover {
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.9))
            drop-shadow(0 0 12px rgba(248, 248, 248, 0.8))
            drop-shadow(0 0 18px rgba(240, 240, 240, 0.7))
            drop-shadow(0 0 24px rgba(235, 235, 235, 0.6))
            brightness(1.3);
}

/* Submission page - blue and white */
.submissions-header .page-header-logo {
    filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.8))
            drop-shadow(0 0 8px rgba(30, 144, 255, 0.7))
            drop-shadow(0 0 12px rgba(70, 130, 180, 0.6))
            drop-shadow(0 0 16px rgba(100, 149, 237, 0.5))
            brightness(1.2);
}

.submissions-header .page-header-logo:hover {
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.9))
            drop-shadow(0 0 12px rgba(30, 144, 255, 0.8))
            drop-shadow(0 0 18px rgba(70, 130, 180, 0.7))
            drop-shadow(0 0 24px rgba(100, 149, 237, 0.6))
            brightness(1.3);
}

/* Paper Status page - sunlight color */
.paper-status-header .page-header-logo {
    filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.9))
            drop-shadow(0 0 8px rgba(248, 248, 248, 0.8))
            drop-shadow(0 0 12px rgba(240, 240, 240, 0.7))
            drop-shadow(0 0 16px rgba(235, 235, 235, 0.6))
            brightness(1.2);
}

.paper-status-header .page-header-logo:hover {
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.9))
            drop-shadow(0 0 12px rgba(248, 248, 248, 0.8))
            drop-shadow(0 0 18px rgba(240, 240, 240, 0.7))
            drop-shadow(0 0 24px rgba(235, 235, 235, 0.6))
            brightness(1.3);
}

/* Program page - dark blue (use generic page-header for committee and program) */
/* Committee page - dark blue */
/* FAQ page - sunlight color */
.faq-header .page-header-logo {
    filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.9))
            drop-shadow(0 0 8px rgba(248, 248, 248, 0.8))
            drop-shadow(0 0 12px rgba(240, 240, 240, 0.7))
            drop-shadow(0 0 16px rgba(235, 235, 235, 0.6))
            brightness(1.2);
}

.faq-header .page-header-logo:hover {
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.9))
            drop-shadow(0 0 12px rgba(248, 248, 248, 0.8))
            drop-shadow(0 0 18px rgba(240, 240, 240, 0.7))
            drop-shadow(0 0 24px rgba(235, 235, 235, 0.6))
            brightness(1.3);
}

/* Pipeline page - off-white color */
.pipeline-header .page-header-logo {
    filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.9))
            drop-shadow(0 0 8px rgba(248, 248, 248, 0.8))
            drop-shadow(0 0 12px rgba(240, 240, 240, 0.7))
            drop-shadow(0 0 16px rgba(235, 235, 235, 0.6))
            brightness(1.2);
}

.pipeline-header .page-header-logo:hover {
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 1.0))
            drop-shadow(0 0 12px rgba(248, 248, 248, 0.9))
            drop-shadow(0 0 18px rgba(240, 240, 240, 0.8))
            drop-shadow(0 0 24px rgba(235, 235, 235, 0.7))
            brightness(1.3);
}

/* Registration page - keep existing warm colors */
.registration-header .page-header-logo {
    filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.9))
            drop-shadow(0 0 8px rgba(248, 248, 248, 0.8))
            drop-shadow(0 0 12px rgba(240, 240, 240, 0.7))
            drop-shadow(0 0 16px rgba(235, 235, 235, 0.6))
            brightness(1.2);
}

.registration-header .page-header-logo:hover {
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.9))
            drop-shadow(0 0 12px rgba(248, 248, 248, 0.8))
            drop-shadow(0 0 18px rgba(240, 240, 240, 0.7))
            drop-shadow(0 0 24px rgba(235, 235, 235, 0.6))
            brightness(1.3);
}

/* Proceedings Header */
.proceedings-header {
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)),
                url('../images/doha_skyline_02.jpg');
}

/* Proceedings Header Logo */
.proceedings-header .page-header-logo {
    filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.9))
            drop-shadow(0 0 8px rgba(30, 144, 255, 0.7))
            drop-shadow(0 0 12px rgba(135, 206, 235, 0.6))
            drop-shadow(0 0 16px rgba(70, 130, 180, 0.5))
            brightness(1.3);
    transition: all 0.3s ease;
}

.proceedings-header .page-header-logo:hover {
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.9))
            drop-shadow(0 0 12px rgba(30, 144, 255, 0.8))
            drop-shadow(0 0 18px rgba(135, 206, 235, 0.7))
            drop-shadow(0 0 24px rgba(70, 130, 180, 0.6))
            brightness(1.3);
}

.footer-title {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.footer-logo {
    max-width: 120px;
    height: auto;
    margin-right: 0px;
    display: inline-block;
    vertical-align: middle;
}

.footer-logo:hover {
    transform: scale(1.05);
    transition: transform 0.3s ease;
}

.footer-title h3 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 700;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: bold;
    text-align: center;
}

.btn-primary {
    background-color: #1565C0;
    color: white;
}

.btn-primary:hover {
    background-color: #0D47A1;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(76, 175, 80, 0.3);
}

.btn-secondary {
    background-color: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background-color: #5a6268;
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* Hero Section */
.hero {
    background:
        linear-gradient(135deg, rgba(13, 13, 35, 0.6) 0%, rgba(25, 25, 50, 0.7) 100%),
        url('../images/doha_skyline_night.jpg') center/cover no-repeat;
    color: white;
    padding: 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="neural" patternUnits="userSpaceOnUse" width="25" height="25"><circle cx="12.5" cy="12.5" r="1.2" fill="rgba(255,255,255,0.12)"/><circle cx="6" cy="6" r="0.7" fill="rgba(76,175,80,0.18)"/><circle cx="19" cy="19" r="0.7" fill="rgba(33,150,243,0.18)"/><line x1="6" y1="6" x2="12.5" y2="12.5" stroke="rgba(76,175,80,0.1)" stroke-width="0.4"/><line x1="12.5" y1="12.5" x2="19" y2="19" stroke="rgba(33,150,243,0.1)" stroke-width="0.4"/></pattern></defs><rect width="100" height="100" fill="url(%23neural)"/></svg>');
    animation: float 20s ease-in-out infinite;
    pointer-events: none;
    opacity: 0.8;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    25% { transform: translateY(-10px) rotate(1deg); }
    50% { transform: translateY(-5px) rotate(-1deg); }
    75% { transform: translateY(-15px) rotate(0.5deg); }
}

.hero-content {
    position: relative;
    z-index: 2;
    padding-bottom: 3rem;
}

.hero-content h1 {
    font-size: 4.5rem;
    margin-bottom: 1rem;
    font-weight: bold;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.4);
    background: linear-gradient(45deg, #ffffff, #f0f8ff, #e6f3ff, #42A5F5, #87ceeb);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 6s ease-in-out infinite;
    letter-spacing: 2px;
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-content h2 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: #42A5F5;
    font-weight: bold;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.2);
    position: relative;
}

.hero-content h2::after {
    content: '🤖';
    font-size: 1.2rem;
    margin-left: 10px;
    display: inline-block;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.2);
    opacity: 0.95;
}


/* Mobile adjustments for AI theme */
@media (max-width: 768px) {
    .hero {
        background-attachment: scroll; /* Fix for mobile devices */
    }
    
    .page-header {
        background-attachment: scroll; /* Fix for mobile devices */
        padding: 80px 0;
        min-height: 300px;
    }
    
    .page-header h1 {
        font-size: 2.2rem;
    }
    
    .page-header p {
        font-size: 1.1rem;
    }
    
    .registration-header {
        background-attachment: scroll;
        padding: 80px 0;
        min-height: 300px;
    }
    
    
    .hero-content h1 {
        font-size: 3rem;
        font-weight: bold;
        color: #f0f8ff;
        -webkit-text-fill-color: #f0f8ff;
        background: none;
        animation: none;
        letter-spacing: 1px;
        text-shadow: 2px 2px 6px rgba(0,0,0,0.5);
    }
}

.visitor-counter {
    margin: 1.5rem 0 0 0;
    padding: 0.7rem 1.3rem;
    background: rgba(66, 165, 245, 0.15);
    border: 1px solid rgba(66, 165, 245, 0.4);
    border-radius: 22px;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    text-align: left;
    color: #ddd;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    box-shadow: 0 3px 10px rgba(0,0,0,0.3);
}

.visitor-counter:hover {
    background: rgba(66, 165, 245, 0.2);
    border-color: rgba(66, 165, 245, 0.5);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}

.counter-label {
    font-size: 0.9rem;
}

.counter-number {
    font-size: 1rem;
    font-weight: 600;
    color: #42A5F5;
    transition: color 0.3s ease;
}

.visitor-counter:hover .counter-number {
    color: #FFD700;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Page Header */
.page-header {
    background: 
        linear-gradient(135deg, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.4) 100%),
        url('../images/conference_hall.jpg') center/cover no-repeat;
    color: white;
    padding: 120px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    background-attachment: fixed;
    min-height: 400px;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="confPattern" patternUnits="userSpaceOnUse" width="50" height="50"><circle cx="25" cy="25" r="0.5" fill="rgba(255,255,255,0.03)"/></pattern></defs><rect width="100" height="100" fill="url(%23confPattern)"/></svg>');
    pointer-events: none;
    opacity: 0.2;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 2;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.7);
    font-weight: bold;
}

.page-header p {
    font-size: 1.3rem;
    position: relative;
    z-index: 2;
    text-shadow: 1px 1px 4px rgba(0,0,0,0.6);
}

.page-header .container {
    position: relative;
    z-index: 2;
}

/* Submissions Page Header */
.submissions-header {
    background: 
        linear-gradient(135deg, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.4) 100%),
        url('../images/ec_banner_02.webp') center/cover no-repeat;
    color: white;
    padding: 120px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    background-attachment: fixed;
    min-height: 400px;
}

.submissions-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="subPattern" patternUnits="userSpaceOnUse" width="50" height="50"><circle cx="25" cy="25" r="0.5" fill="rgba(255,255,255,0.03)"/></pattern></defs><rect width="100" height="100" fill="url(%23subPattern)"/></svg>');
    pointer-events: none;
    opacity: 0.2;
}

.submissions-header h1,
.submissions-header p {
    position: relative;
    z-index: 2;
}

.submissions-header .container {
    position: relative;
    z-index: 2;
}

/* Registration Page Header */
.registration-header {
    background: 
        linear-gradient(135deg, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.4) 100%),
        url('../images/ec_banner.webp') center/cover no-repeat;
    color: white;
    padding: 120px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    background-attachment: fixed;
    min-height: 400px;
}

.registration-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="regPattern" patternUnits="userSpaceOnUse" width="50" height="50"><circle cx="25" cy="25" r="0.5" fill="rgba(255,255,255,0.03)"/></pattern></defs><rect width="100" height="100" fill="url(%23regPattern)"/></svg>');
    pointer-events: none;
    opacity: 0.2;
}

.registration-header h1,
.registration-header p {
    position: relative;
    z-index: 2;
}

.registration-header .container {
    position: relative;
    z-index: 2;
}

/* Sections */
section {
    padding: 60px 0;
}

section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1a1a2e;
    font-weight: bold;
}

/* Announcement Section */
.announcement {
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 249, 250, 1) 100%),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 400 400"><defs><pattern id="qatarPattern" patternUnits="userSpaceOnUse" width="80" height="80"><rect width="80" height="80" fill="rgba(139,69,19,0.05)"/><path d="M10,10 Q40,20 70,10 Q60,40 70,70 Q40,60 10,70 Q20,40 10,10 Z" fill="rgba(218,165,32,0.1)"/><circle cx="40" cy="40" r="15" fill="none" stroke="rgba(139,69,19,0.08)" stroke-width="1"/><path d="M25,25 L55,25 L55,55 L25,55 Z" fill="none" stroke="rgba(160,82,45,0.06)" stroke-width="0.5"/></pattern><radialGradient id="qatarGlow" cx="50%" cy="50%" r="70%"><stop offset="0%" style="stop-color:%23DAA520;stop-opacity:0.1" /><stop offset="100%" style="stop-color:%238B4513;stop-opacity:0.05" /></radialGradient></defs><rect width="400" height="400" fill="url(%23qatarPattern)"/><rect width="400" height="400" fill="url(%23qatarGlow)"/><g fill="rgba(218,165,32,0.15)" opacity="0.3"><polygon points="50,100 70,120 50,140 30,120"><animate attributeName="opacity" values="0.1;0.4;0.1" dur="8s" repeatCount="indefinite"/></polygon><polygon points="150,200 170,220 150,240 130,220"><animate attributeName="opacity" values="0.2;0.5;0.2" dur="7s" repeatCount="indefinite"/></polygon><polygon points="250,150 270,170 250,190 230,170"><animate attributeName="opacity" values="0.15;0.45;0.15" dur="9s" repeatCount="indefinite"/></polygon><polygon points="350,250 370,270 350,290 330,270"><animate attributeName="opacity" values="0.1;0.35;0.1" dur="8.5s" repeatCount="indefinite"/></polygon></g></svg>') repeat;
    padding-bottom: 30px;
}

.announcement-content {
    text-align: center;
}

.announcement-content p {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.conference-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.detail-item {
    text-align: center;
    padding: 2rem;
    background-color: #f8f9fa;
    border-radius: 10px;
    border-left: 4px solid #1565C0;
}

.detail-item h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #1a1a2e;
}

/* Important Dates */
.important-dates {
    background-color: #f8f9fa;
}

.dates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.date-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.date-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.date-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.date-card h3 {
    color: #1a1a2e;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.date-card .date {
    font-size: 1.3rem;
    font-weight: 700;
    color: #42A5F5;
    margin-bottom: 0.5rem;
}

.date-card .description {
    color: #666;
    font-size: 0.9rem;
}

/* Intro Video */
.intro-video {
    padding: 4rem 0;
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.98), rgba(21, 101, 192, 0.95));
    text-align: center;
}

.intro-video h2 {
    color: #fff;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.video-container {
    max-width: 800px;
    margin: 0 auto 2rem;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.intro-video-player {
    width: 100%;
    height: auto;
    display: block;
}

.intro-video .video-description {
    color: #fff !important;
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
    opacity: 0.9;
    line-height: 1.6;
}

/* Tracks */
.tracks {
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(248, 249, 250, 1) 100%),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 400"><defs><linearGradient id="educationGrad" x1="0%" y1="0%" x2="100%" y2="100%"><stop offset="0%" style="stop-color:%234CAF50;stop-opacity:0.1" /><stop offset="50%" style="stop-color:%232196F3;stop-opacity:0.08" /><stop offset="100%" style="stop-color:%23FF9800;stop-opacity:0.06" /></linearGradient><pattern id="bookPattern" patternUnits="userSpaceOnUse" width="100" height="100"><rect width="100" height="100" fill="rgba(76,175,80,0.02)"/><rect x="20" y="30" width="60" height="40" rx="3" fill="rgba(33,150,243,0.08)"/><rect x="25" y="35" width="50" height="2" fill="rgba(76,175,80,0.1)"/><rect x="25" y="40" width="45" height="2" fill="rgba(76,175,80,0.1)"/><rect x="25" y="45" width="48" height="2" fill="rgba(76,175,80,0.1)"/></pattern></defs><rect width="1200" height="400" fill="url(%23educationGrad)"/><rect width="1200" height="400" fill="url(%23bookPattern)"/><g stroke="rgba(76,175,80,0.2)" stroke-width="1" fill="none"><path d="M100,200 Q200,180 300,200 T500,190 Q600,185 700,195 T900,185 Q1000,180 1100,190"/><path d="M50,250 Q150,230 250,250 T450,240 Q550,235 650,245 T850,235 Q950,230 1050,240"/></g><g fill="rgba(33,150,243,0.15)"><circle cx="200" cy="100" r="25" opacity="0.3"><animate attributeName="opacity" values="0.1;0.4;0.1" dur="6s" repeatCount="indefinite"/></circle><circle cx="600" cy="120" r="30" opacity="0.2"><animate attributeName="opacity" values="0.15;0.45;0.15" dur="5s" repeatCount="indefinite"/></circle><circle cx="1000" cy="80" r="20" opacity="0.25"><animate attributeName="opacity" values="0.1;0.35;0.1" dur="7s" repeatCount="indefinite"/></circle></g><g fill="rgba(255,152,0,0.1)"><polygon points="150,300 170,280 190,300 170,320"><animate attributeName="opacity" values="0.05;0.2;0.05" dur="8s" repeatCount="indefinite"/></polygon><polygon points="450,320 470,300 490,320 470,340"><animate attributeName="opacity" values="0.08;0.25;0.08" dur="7s" repeatCount="indefinite"/></polygon><polygon points="750,280 770,260 790,280 770,300"><animate attributeName="opacity" values="0.06;0.22;0.06" dur="9s" repeatCount="indefinite"/></polygon></g></svg>') center/cover;
    padding-top: 30px;
}

.tracks-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
    max-width: 1600px;
    margin: 0 auto;
}

.track-card {
    background-color: #f8f9fa;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    border-top: 4px solid #1565C0;
    transition: transform 0.3s ease;
}

/* Track-specific colors */
.track-card:nth-child(1) {
    border-top: 4px solid #2196F3; /* Blue for Artificial Intelligence */
    background: linear-gradient(135deg, #f8f9fa 0%, #e3f2fd 100%);
}

.track-card:nth-child(2) {
    border-top: 4px solid #4CAF50; /* Green for Precision Health */
    background: linear-gradient(135deg, #f8f9fa 0%, #e8f5e8 100%);
}

.track-card:nth-child(3) {
    border-top: 4px solid #FF9800; /* Orange for Progressive Education */
    background: linear-gradient(135deg, #f8f9fa 0%, #fff3e0 100%);
}

.track-card:nth-child(4) {
    border-top: 4px solid #8BC34A; /* Light Green for Sustainability */
    background: linear-gradient(135deg, #f8f9fa 0%, #f1f8e9 100%);
}

.track-card:nth-child(5) {
    border-top: 4px solid #9C27B0; /* Purple for Social Progress */
    background: linear-gradient(135deg, #f8f9fa 0%, #f3e5f5 100%);
}

.track-card:hover {
    transform: translateY(-3px);
}

.track-card h3 {
    color: #1a1a2e;
    margin-bottom: 1rem;
}

/* Forms */
.form-container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.form-section {
    margin-bottom: 3rem;
}

.form-section h3 {
    color: #1a1a2e;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    border-bottom: 2px solid #1565C0;
    padding-bottom: 0.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: #333;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #42A5F5;
}

.form-group small {
    display: block;
    margin-top: 0.5rem;
    color: #666;
    font-size: 0.9rem;
}

/* Character Counter */
.char-counter {
    text-align: right;
    margin-top: 0.5rem;
    font-size: 0.9rem;
    color: #666;
}

/* Checkbox Styling */
.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    cursor: pointer;
    line-height: 1.4;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid #ddd;
    border-radius: 3px;
    display: inline-block;
    position: relative;
    transition: all 0.3s ease;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background-color: #1565C0;
    border-color: #1565C0;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: "✓";
    color: white;
    position: absolute;
    top: -2px;
    left: 3px;
    font-size: 14px;
}

/* Form Actions */
.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    padding-top: 2rem;
    border-top: 2px solid #f0f0f0;
}

/* Guidelines */
.submission-guidelines,
.registration-info {
    background-color: white;
}

.guidelines-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    max-width: 1600px;
    margin: 0 auto;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    justify-content: center;
}

.guideline-card,
.info-card {
    background-color: #f8f9fa;
    padding: 2rem;
    border-radius: 10px;
    border-left: 4px solid #1565C0;
}

.guideline-card h3,
.info-card h3 {
    color: #1a1a2e;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.guideline-card ul {
    list-style: none;
    padding-left: 0;
}

.guideline-card li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.guideline-card li::before {
    content: "✓";
    color: #42A5F5;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Authors Section */
.authors-section {
    border: 2px solid #f0f0f0;
    border-radius: 8px;
    padding: 2rem;
    background-color: #fafafa;
}

.author-group {
    background-color: white;
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    border: 1px solid #e0e0e0;
}

/* Status Checker */
.status-checker {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

/* Program Schedule */
.program-overview {
    background-color: white;
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.overview-card {
    background: linear-gradient(135deg, #1565C0 0%, #1565C0 100%);
    color: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
}

.overview-card h3 {
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

/* Opening Speech Section */
.opening-speech {
    background: #f8f9fa;
    padding: 4rem 0;
    margin-bottom: 2rem;
}

.opening-speech h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #2c5aa0;
    font-size: 2.5rem;
}

.opening-speaker-row {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.opening-speaker {
    max-width: 400px;
    margin: 0 auto;
    box-shadow: 0 8px 25px rgba(44, 90, 160, 0.15);
    border: 2px solid #2c5aa0;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
}

.opening-speaker .speaker-image {
    padding: 1.5rem 1.5rem 1rem;
}

.opening-speaker h3 {
    font-size: 1.8rem;
    color: #2c5aa0;
    text-align: center;
    margin-bottom: 0.5rem;
}

.opening-speaker .title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #e74c3c;
    text-align: center;
    margin-bottom: 1rem;
}

/* Responsive adjustments for opening speech */
@media (max-width: 768px) {
    .opening-speech {
        padding: 2rem 0;
    }

    .opening-speech h2 {
        font-size: 2rem;
        margin-bottom: 2rem;
    }

    .opening-speaker {
        max-width: 90%;
    }
}

/* Keynote Speakers */
.keynote-speakers {
    background: 
        linear-gradient(135deg, rgba(248, 249, 250, 0.95) 0%, rgba(233, 236, 239, 1) 100%),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><defs><linearGradient id="vrGrad" x1="0%" y1="0%" x2="100%" y2="100%"><stop offset="0%" style="stop-color:%232196F3;stop-opacity:0.15" /><stop offset="50%" style="stop-color:%234CAF50;stop-opacity:0.1" /><stop offset="100%" style="stop-color:%23673AB7;stop-opacity:0.08" /></linearGradient><radialGradient id="avatarGlow" cx="50%" cy="50%" r="30%"><stop offset="0%" style="stop-color:%234CAF50;stop-opacity:0.2" /><stop offset="100%" style="stop-color:%232196F3;stop-opacity:0.05" /></radialGradient></defs><rect width="1200" height="600" fill="url(%23vrGrad)"/><g fill="url(%23avatarGlow)"><circle cx="200" cy="150" r="80" opacity="0.3"><animate attributeName="r" values="80;100;80" dur="4s" repeatCount="indefinite"/></circle><circle cx="600" cy="200" r="90" opacity="0.25"><animate attributeName="r" values="90;110;90" dur="3.5s" repeatCount="indefinite"/></circle><circle cx="1000" cy="180" r="85" opacity="0.28"><animate attributeName="r" values="85;105;85" dur="4.2s" repeatCount="indefinite"/></circle></g><g stroke="rgba(33,150,243,0.3)" stroke-width="2" fill="none"><path d="M100,400 Q200,350 300,400 T500,380 Q600,375 700,385 T900,375 Q1000,370 1100,380"><animate attributeName="stroke-dasharray" values="0,50; 50,0; 0,50" dur="8s" repeatCount="indefinite"/></path><path d="M50,450 Q150,400 250,450 T450,430 Q550,425 650,435 T850,425 Q950,420 1050,430"><animate attributeName="stroke-dasharray" values="0,60; 60,0; 0,60" dur="7s" repeatCount="indefinite"/></path></g><g fill="rgba(76,175,80,0.2)"><polygon points="180,120 200,100 220,120 200,140"><animate attributeName="opacity" values="0.1;0.4;0.1" dur="5s" repeatCount="indefinite"/></polygon><polygon points="580,170 600,150 620,170 600,190"><animate attributeName="opacity" values="0.15;0.45;0.15" dur="4.5s" repeatCount="indefinite"/></polygon><polygon points="980,150 1000,130 1020,150 1000,170"><animate attributeName="opacity" values="0.12;0.42;0.12" dur="5.5s" repeatCount="indefinite"/></polygon></g><g stroke="rgba(103,58,183,0.2)" stroke-width="1" fill="none"><rect x="150" y="100" width="100" height="100" rx="10"><animate attributeName="opacity" values="0.1;0.3;0.1" dur="6s" repeatCount="indefinite"/></rect><rect x="550" y="150" width="100" height="100" rx="10"><animate attributeName="opacity" values="0.15;0.35;0.15" dur="5.5s" repeatCount="indefinite"/></rect><rect x="950" y="130" width="100" height="100" rx="10"><animate attributeName="opacity" values="0.12;0.32;0.12" dur="6.5s" repeatCount="indefinite"/></rect></g></svg>') center/cover;
}

.speakers-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.speaker-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.speaker-card:hover {
    transform: translateY(-5px);
}

.speaker-image {
    margin-bottom: 1.5rem;
}

.placeholder-image {
    width: 100px;
    height: 100px;
    background-color: #f0f0f0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto;
}

.speaker-card h3 {
    color: #1a1a2e;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.speaker-card .title {
    color: #42A5F5;
    font-weight: bold;
    margin-bottom: 1rem;
}

.speaker-card .topic {
    font-style: italic;
    margin-bottom: 0.5rem;
}

.speaker-card .time {
    color: #666;
    font-size: 0.9rem;
}

/* VR Speaker Specific Styling */
.speaker-card.vr-speaker {
    background: linear-gradient(135deg, #f8f9fa 0%, #e3f2fd 100%);
    border: 2px solid #2196F3;
    position: relative;
    overflow: hidden;
}

.speaker-card.vr-speaker::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(33,150,243,0.1) 0%, transparent 70%);
    animation: vr-pulse 4s ease-in-out infinite;
    pointer-events: none;
}

@keyframes vr-pulse {
    0%, 100% { transform: scale(0.8) rotate(0deg); opacity: 0.3; }
    50% { transform: scale(1.2) rotate(180deg); opacity: 0.6; }
}

.vr-avatar {
    background: linear-gradient(135deg, #2196F3, #1565C0);
    color: white;
    font-size: 2.5rem;
    border: 3px solid #fff;
    box-shadow: 0 0 20px rgba(33,150,243,0.5);
    animation: vr-float 3s ease-in-out infinite;
}

@keyframes vr-float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(5deg); }
}

.avatar-image {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #fff;
    box-shadow: 0 0 20px rgba(33,150,243,0.5);
    transition: all 0.3s ease;
    animation: vr-float 3s ease-in-out infinite;
}

.avatar-image:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(33,150,243,0.7);
}

/* Responsive avatar sizing */
@media (max-width: 768px) {
    .avatar-image {
        width: 120px;
        height: 120px;
    }
}

@media (max-width: 480px) {
    .avatar-image {
        width: 140px;
        height: 140px;
    }
    
    .schedule-speaker-image {
        width: 50px;
        height: 50px;
    }
    
    .keynote-speaker-info {
        gap: 0.75rem;
    }
    
    .hero-content {
        padding: 0 2rem;
    }
    
    .hero-content h1,
    .hero-content h2,
    .hero-content p {
        margin-left: 1rem;
        margin-right: 1rem;
    }
    
    .announcement .container,
    .announcement-content {
        padding: 0 2rem;
    }
    
    .announcement-content p {
        margin-left: 1rem;
        margin-right: 1rem;
    }
}

.vr-note {
    color: #2196F3;
    font-weight: bold;
    font-size: 0.9rem;
    margin-top: 0.5rem;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

/* Conference Chair Styles */
.conference-chair {
    padding: 4rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.conference-chair h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: white;
}

.organizing-committee-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.chair-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    text-align: center;
}

.chair-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.chair-card h3 {
    font-size: 1.8rem;
    margin: 1rem 0 0.5rem 0;
    color: white;
}

.chair-card .title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #FFD700;
    margin-bottom: 0.5rem;
}

.chair-card .affiliation {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1rem;
}

/* Track Chairs Styles */
.track-chairs {
    padding: 4rem 0;
    background: #f8f9fa;
}

.track-chairs h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    color: #1a1a2e;
}

.chairs-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
    max-width: 1600px;
    margin-left: auto;
    margin-right: auto;
}

.chairs-grid .chair-card {
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
}

.chairs-grid .chair-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.chairs-grid .chair-card h3 {
    font-size: 1.3rem;
    margin: 1rem 0 0.5rem 0;
    color: #1a1a2e;
}

.chairs-grid .chair-card .title {
    font-size: 1rem;
    font-weight: 600;
    color: #2196F3;
    margin-bottom: 0.5rem;
}

.chairs-grid .chair-card .track-assignment {
    font-size: 1rem;
    font-weight: 600;
    color: #FF6B35;
    margin-bottom: 0.5rem;
    padding: 0.25rem 0.5rem;
    background: rgba(255, 107, 53, 0.1);
    border-radius: 8px;
    display: inline-block;
}

.chairs-grid .chair-card .affiliation {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.4;
}

/* Responsive adjustments for new sections */
@media (max-width: 1400px) {
    .chairs-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }
}


@media (max-width: 1200px) {
    .speakers-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .policies-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (max-width: 900px) {
    .policies-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
    
    .policy-card {
        padding: 1.5rem;
    }
    
    .chairs-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .speakers-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .chairs-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .policies-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .policy-card {
        padding: 1.25rem;
        margin-bottom: 1rem;
    }
    
    .policy-card h3 {
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }
    
    .policy-card ul {
        font-size: 0.9rem;
    }
    
    .conference-chair h2,
    .track-chairs h2 {
        font-size: 2rem;
    }
    
    .organizing-committee-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .chair-card {
        padding: 1.5rem 1rem;
    }
}

.speaker-card.vr-speaker .title {
    color: #1976D2;
    font-weight: bold;
}

/* Schedule Navigation */
.schedule-navigation {
    display: flex;
    justify-content: center;
    margin-bottom: 3rem;
    gap: 1rem;
    flex-wrap: wrap;
}

.day-tab {
    padding: 12px 24px;
    background-color: #f0f0f0;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: bold;
}

.day-tab.active,
.day-tab:hover {
    background-color: #1565C0;
    color: white;
}

/* Schedule Day */
.schedule-day {
    display: none;
}

.schedule-day.active {
    display: block;
}

.schedule-day h3 {
    text-align: center;
    color: #1a1a2e;
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

/* Schedule Timeline */
.schedule-timeline {
    background: white;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.schedule-item {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 2rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.schedule-item:last-child {
    border-bottom: none;
}

.schedule-item.keynote {
    background: linear-gradient(135deg, #e3f2fd 0%, #f0f7ff 100%);
    border-radius: 8px;
    padding: 1.5rem;
    margin: 1rem 0;
    border-left: 4px solid #42A5F5;
    box-shadow: 0 2px 8px rgba(66, 165, 245, 0.15);
}

.keynote-speaker-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.schedule-speaker-image {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #42A5F5;
    box-shadow: 0 0 15px rgba(66, 165, 245, 0.3);
    flex-shrink: 0;
}

.keynote-details {
    flex: 1;
}

.keynote-details h4 {
    margin-bottom: 0.5rem;
}

.keynote-details p {
    margin: 0;
}

.schedule-item .time {
    font-weight: bold;
    color: #42A5F5;
    font-size: 1rem;
}

.schedule-item .event h4 {
    color: #1a1a2e;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.schedule-item .event p {
    color: #666;
    font-size: 0.9rem;
}

/* Venue Info */
.venue-info {
    background-color: white;
}

.venue-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.venue-card {
    background-color: #f8f9fa;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    border-top: 4px solid #1565C0;
}

.venue-card h3 {
    color: #1a1a2e;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

/* Registration Pricing */
.pricing-section {
    background-color: #f8f9fa;
}

.pricing-toggle {
    display: flex;
    justify-content: center;
    margin-bottom: 3rem;
    gap: 1rem;
}

.price-toggle {
    padding: 12px 24px;
    background-color: white;
    border: 2px solid #ddd;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: bold;
}

.price-toggle.active {
    background-color: #1565C0;
    color: white;
    border-color: #1565C0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.pricing-card.popular {
    border: 3px solid #1565C0;
    transform: scale(1.05);
}

.popular-badge {
    background: #1565C0;
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: bold;
    position: absolute;
    top: -10px;
    right: 20px;
}

.card-header h3 {
    color: #1a1a2e;
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.card-header p {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

.price-display {
    margin-bottom: 2rem;
}

.price {
    display: none;
    align-items: baseline;
    justify-content: center;
    margin-bottom: 1rem;
}

.price.active {
    display: flex;
}

.currency {
    font-size: 1.5rem;
    color: #42A5F5;
    font-weight: bold;
}

.amount {
    font-size: 3rem;
    color: #1a1a2e;
    font-weight: 700;
}

.features {
    list-style: none;
    text-align: left;
    margin-bottom: 2rem;
}

.features li {
    padding: 0.5rem 0;
    color: #333;
    font-size: 0.9rem;
}

.select-plan {
    width: 100%;
    padding: 15px;
    font-size: 1.1rem;
    border-radius: 8px;
}

/* Payment Summary */
.payment-summary {
    background-color: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    padding: 0.5rem 0;
}

.summary-row.total {
    border-top: 2px solid #ddd;
    font-weight: 700;
    font-size: 1.1rem;
    color: #1a1a2e;
    margin-top: 1rem;
    padding-top: 1rem;
}

.payment-section {
    background-color: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 1rem;
}

/* Registration Policies */
.registration-policies {
    background-color: white;
}

.policies-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 1600px;
    margin: 0 auto;
}

.policy-card {
    background-color: #f8f9fa;
    padding: 2rem;
    border-radius: 10px;
    border-left: 4px solid #1565C0;
}

.policy-card h3 {
    color: #1a1a2e;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.policy-card ul {
    list-style: none;
    padding-left: 0;
}

.policy-card li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
    font-size: 0.9rem;
}

.policy-card li::before {
    content: "•";
    color: #42A5F5;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Footer */
footer {
    background-color: #1a1a2e;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    color: #42A5F5;
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: bold;
}

.footer-section a:hover {
    color: #42A5F5;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #333;
    color: #ccc;
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: #1a1a2e;
        flex-direction: column;
        gap: 0;
        padding: 1rem 0;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        z-index: 1000;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        width: 100%;
        text-align: center;
    }
    
    .nav-menu a {
        display: block;
        padding: 1rem 2rem;
        font-size: 1rem;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    .nav-menu a:hover {
        background-color: #1565C0;
        transform: none;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .schedule-item {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .schedule-item .time {
        text-align: center;
        background-color: #1565C0;
        color: white;
        padding: 0.5rem;
        border-radius: 5px;
    }
    
    .pricing-card.popular {
        transform: none;
    }
    
    .form-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    section {
        padding: 40px 0;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero-content h1 {
        font-size: 2.2rem;
        font-weight: bold;
        color: #f0f8ff;
        -webkit-text-fill-color: #f0f8ff;
        background: none;
        animation: none;
        letter-spacing: 0.5px;
        text-shadow: 2px 2px 6px rgba(0,0,0,0.6);
    }
    
    .form-container {
        padding: 2rem 1.5rem;
    }
    
    .dates-grid,
    .options-grid {
        grid-template-columns: 1fr;
    }
    
    .guidelines-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .tracks-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .option-card {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .tracks-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .organizing-committee-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .guidelines-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .policies-grid {
        grid-template-columns: 1fr !important;
        gap: 1rem;
    }
    
    .options-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .option-card {
        padding: 1.5rem;
    }
    
    .policy-card {
        padding: 1rem;
        margin-bottom: 0.75rem;
    }
    
    .options-grid {
        gap: 2rem;
    }
    
    .option-header {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
    
    .option-icon {
        width: 40px;
        height: 40px;
    }
}

/* Submission Options */
.submission-options {
    background-color: #f8f9fa;
    padding: 80px 0;
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.option-card {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.option-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
    border-color: #1565C0;
}

.option-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #1565C0, #42A5F5);
}

.option-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    gap: 1rem;
}

.option-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.option-card:hover .option-icon {
    transform: scale(1.1);
}

.option-card h3 {
    color: #1a1a2e;
    margin: 0;
    font-size: 1.4rem;
    font-weight: bold;
}

.option-card > p {
    color: #666;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.6;
}

.option-features {
    margin-bottom: 2rem;
}

.option-features ul {
    list-style: none;
    padding-left: 0;
}

.option-features li {
    padding: 0.5rem 0;
    color: #333;
    font-size: 0.95rem;
    position: relative;
    padding-left: 1.5rem;
}

.option-features li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: linear-gradient(135deg, #1565C0, #42A5F5);
    border-radius: 50%;
}

.option-btn {
    width: 100%;
    padding: 15px;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #1565C0, #42A5F5);
    border: none;
    transition: all 0.3s ease;
}

.option-btn:hover {
    background: linear-gradient(135deg, #0D47A1, #1565C0);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(21, 101, 192, 0.3);
}

.option-note {
    color: #888;
    font-size: 0.9rem;
    font-style: italic;
    text-align: center;
    margin: 0;
}

.ai-scholar-instructions {
    margin-top: 1.5rem;
    animation: fadeIn 0.3s ease-in-out;
}

.instruction-box {
    background: #f8f9fa;
    border: 2px solid #1565C0;
    border-radius: 10px;
    padding: 1.5rem;
    margin-top: 1rem;
}

.instruction-box h5 {
    color: #1565C0;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: bold;
}

.instruction-box ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.instruction-box li {
    margin-bottom: 0.5rem;
    color: #333;
    line-height: 1.5;
}

.instruction-box code {
    background: #e9ecef;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: #1565C0;
}

.instruction-box p {
    margin: 0;
    color: #666;
    font-style: italic;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Progress Dialog Styles */
.progress-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    backdrop-filter: blur(5px);
}

.progress-dialog, .api-key-dialog, .rejection-dialog, .acceptance-dialog {
    background: white;
    border-radius: 15px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: dialogSlideIn 0.3s ease-out;
}

@keyframes dialogSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.progress-header, .dialog-header {
    background: linear-gradient(135deg, #1565C0, #42A5F5);
    color: white;
    padding: 20px;
    border-radius: 15px 15px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.rejection-header {
    background: linear-gradient(135deg, #f44336, #ef5350);
}

.btn-close {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease;
}

.btn-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.progress-content, .dialog-content {
    padding: 30px;
}

.progress-steps {
    margin-bottom: 30px;
}

.progress-step {
    display: flex;
    align-items: center;
    padding: 15px 0;
    border-bottom: 1px solid #f0f0f0;
    transition: all 0.3s ease;
}

.progress-step:last-child {
    border-bottom: none;
}

.step-icon {
    font-size: 24px;
    margin-right: 15px;
    width: 40px;
    text-align: center;
}

.step-text {
    flex: 1;
    font-size: 16px;
    font-weight: 500;
}

.step-status {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    min-width: 80px;
    text-align: center;
}

.step-status.pending {
    background: #f5f5f5;
    color: #666;
}

.step-status.in-progress {
    background: #fff3cd;
    color: #856404;
    animation: pulse 2s infinite;
}

.step-status.completed {
    background: #d4edda;
    color: #155724;
}

.step-status.error {
    background: #f8d7da;
    color: #721c24;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.progress-bar-container {
    margin: 20px 0;
}

.progress-bar {
    width: 100%;
    height: 12px;
    background: #f0f0f0;
    border-radius: 6px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #1565C0, #42A5F5);
    border-radius: 6px;
    transition: width 0.3s ease;
    width: 0%;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.progress-text {
    text-align: center;
    margin-top: 10px;
    font-weight: 500;
    color: #666;
}

.progress-details {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    margin: 20px 0;
}

.progress-details p {
    margin: 5px 0;
    color: #666;
}

.progress-actions, .dialog-actions {
    padding: 20px 30px;
    border-top: 1px solid #f0f0f0;
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

/* API Key Dialog Styles */
.api-key-form {
    margin: 20px 0;
}

.api-key-form .form-group {
    margin-bottom: 20px;
}

.api-key-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
}

.api-key-form input[type="password"] {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.api-key-form input[type="password"]:focus {
    outline: none;
    border-color: #1565C0;
    box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.1);
}

.api-key-form small {
    display: block;
    margin-top: 5px;
    color: #666;
    font-size: 12px;
}

.api-key-form small a {
    color: #1565C0;
    text-decoration: none;
}

.api-key-form small a:hover {
    text-decoration: underline;
}

.api-key-note {
    background: #e3f2fd;
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid #1565C0;
    margin-top: 20px;
}

.api-key-note p {
    margin: 0;
    color: #1565C0;
    font-size: 14px;
}

/* Rejection Dialog Styles */
.rejection-dialog {
    max-width: 700px;
}

.rejection-status {
    text-align: center;
    margin-bottom: 30px;
}

.status-icon {
    font-size: 60px;
    margin-bottom: 15px;
}

.rejection-status h4 {
    color: #f44336;
    margin-bottom: 10px;
    font-size: 1.5rem;
}

.rejection-status p {
    color: #666;
    margin: 0;
}

.rejection-details, .rejection-reasons, .rejection-next-steps {
    margin-bottom: 25px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
}

.rejection-details h5, .rejection-reasons h5, .rejection-next-steps h5 {
    color: #333;
    margin-bottom: 15px;
    font-size: 1.1rem;
    border-bottom: 2px solid #1565C0;
    padding-bottom: 5px;
}

.reasons-list {
    margin-top: 15px;
}

.reason-item {
    background: white;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 6px;
    border-left: 4px solid #f44336;
}

.reason-item h6 {
    color: #f44336;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
}

.reason-item p {
    color: #666;
    margin: 0;
    line-height: 1.5;
}

.rejection-next-steps ul {
    margin: 0;
    padding-left: 20px;
}

.rejection-next-steps li {
    margin-bottom: 8px;
    color: #666;
    line-height: 1.5;
}

/* Acceptance Dialog Styles */
.acceptance-dialog {
    max-width: 750px;
    position: relative;
}

.acceptance-header {
    background: linear-gradient(135deg, #059669 0%, #34d399 100%);
    color: white;
    padding: 25px;
    text-align: center;
    border-radius: 15px 15px 0 0;
    position: relative;
}

.acceptance-header.rejection-header {
    background: linear-gradient(135deg, #dc2626 0%, #ef4444 100%);
}

.acceptance-status {
    text-align: center;
    padding: 30px 25px;
    border-bottom: 1px solid #e5e7eb;
}

.acceptance-status .status-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    display: block;
    animation: bounceIn 0.6s ease-out;
}

@keyframes bounceIn {
    0% { transform: scale(0.3); opacity: 0; }
    50% { transform: scale(1.05); }
    70% { transform: scale(0.9); }
    100% { transform: scale(1); opacity: 1; }
}

.acceptance-status h4 {
    font-size: 1.75rem;
    font-weight: bold;
    color: #059669;
    margin-bottom: 0.5rem;
}

.acceptance-status p {
    color: #6b7280;
    font-size: 1.1rem;
    line-height: 1.5;
}

.acceptance-details, .acceptance-summary, .acceptance-next-steps {
    margin-bottom: 0;
    padding: 25px;
    border-bottom: 1px solid #e5e7eb;
}

.acceptance-details:last-child,
.acceptance-summary:last-child,
.acceptance-next-steps:last-child {
    border-bottom: none;
}

.acceptance-details h5,
.acceptance-summary h5,
.acceptance-next-steps h5 {
    font-weight: bold;
    color: #374151;
    margin-bottom: 15px;
    font-size: 1.1rem;
    border-bottom: 2px solid #059669;
    padding-bottom: 5px;
}

.acceptance-details p {
    margin-bottom: 8px;
    color: #4b5563;
    line-height: 1.5;
}

.acceptance-summary .summary-text {
    background: #f0fdf4;
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid #059669;
    color: #374151;
    line-height: 1.6;
    font-style: italic;
}

.acceptance-next-steps ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.acceptance-next-steps li {
    padding: 10px 0;
    color: #4b5563;
    display: flex;
    align-items: flex-start;
    line-height: 1.5;
}

.acceptance-next-steps li:before {
    content: '✓';
    color: #059669;
    font-weight: bold;
    margin-right: 12px;
    flex-shrink: 0;
    font-size: 1.1rem;
}

/* Enhanced button styling for decision dialog */
.acceptance-dialog .dialog-actions {
    padding: 25px;
    background: #f8f9fa;
    border-radius: 0 0 15px 15px;
    display: flex;
    gap: 15px;
    justify-content: center;
}

.acceptance-dialog .btn-primary {
    background: linear-gradient(135deg, #059669 0%, #34d399 100%);
    border: none;
    color: white;
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(5, 150, 105, 0.3);
    transition: all 0.3s ease;
    cursor: pointer;
}

.acceptance-dialog .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(5, 150, 105, 0.4);
}

.acceptance-dialog .btn-secondary {
    background: #6b7280;
    border: none;
    color: white;
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.acceptance-dialog .btn-secondary:hover {
    background: #4b5563;
    transform: translateY(-1px);
}

/* Button Styles for Dialogs */
.dialog-actions .btn {
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dialog-actions .btn-primary {
    background: linear-gradient(135deg, #1565C0, #42A5F5);
    color: white;
}

.dialog-actions .btn-primary:hover {
    background: linear-gradient(135deg, #0D47A1, #1565C0);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(21, 101, 192, 0.3);
}

.dialog-actions .btn-secondary {
    background: #f5f5f5;
    color: #666;
    border: 1px solid #e0e0e0;
}

.dialog-actions .btn-secondary:hover {
    background: #e0e0e0;
    color: #333;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .progress-dialog, .api-key-dialog, .rejection-dialog {
        width: 95%;
        margin: 10px;
    }
    
    .progress-content, .dialog-content {
        padding: 20px;
    }
    
    .progress-actions, .dialog-actions {
        padding: 15px 20px;
        flex-direction: column;
    }
    
    .progress-step {
        flex-direction: column;
        text-align: center;
        padding: 10px 0;
    }
    
    .step-icon {
        margin-bottom: 10px;
        margin-right: 0;
    }
    
    .step-status {
        margin-top: 10px;
    }
}

/* General link styling */
a {
    font-weight: bold;
}

/* API Key Dialog Specific Styles */
.api-provider-group {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 10px;
    padding: 20px;
    margin: 15px 0;
}

.provider-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.provider-header h4 {
    margin: 0;
    color: #1565C0;
    font-size: 16px;
}

.provider-badge {
    padding: 4px 8px;
    border-radius: 15px;
    font-size: 11px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.provider-badge.recommended {
    background: linear-gradient(135deg, #4CAF50, #66BB6A);
    color: white;
}

.provider-badge.alternative {
    background: linear-gradient(135deg, #FF9800, #FFB74D);
    color: white;
}

.review-options {
    background: #f0f7ff;
    border: 1px solid #cce7ff;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
}

.review-options h4 {
    margin: 0 0 15px 0;
    color: #1565C0;
    font-size: 16px;
}

.btn-icon {
    margin-right: 8px;
}

.api-key-dialog {
    max-width: 700px;
}

.api-key-form .form-group {
    margin-bottom: 20px;
}

.api-key-form select {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    background: white;
    transition: border-color 0.3s ease;
}

.api-key-form select:focus {
    border-color: #1565C0;
    outline: none;
    box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.1);
}

.api-key-form input[type="password"] {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.api-key-form input[type="password"]:focus {
    border-color: #1565C0;
    outline: none;
    box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.1);
}

.api-key-note {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 8px;
    padding: 15px;
    margin: 20px 0;
}

.api-key-note p {
    margin: 0;
    color: #856404;
    font-size: 14px;
}

/* Email Configuration Dialog Styles */
.email-config-dialog {
    max-width: 600px;
}

.email-config-form .form-group {
    margin-bottom: 20px;
}

.email-config-form select,
.email-config-form input[type="email"],
.email-config-form input[type="text"],
.email-config-form input[type="number"],
.email-config-form input[type="password"] {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.email-config-form select:focus,
.email-config-form input:focus {
    border-color: #1565C0;
    outline: none;
    box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.1);
}

.email-config-note {
    background: #e3f2fd;
    border: 1px solid #bbdefb;
    border-radius: 8px;
    padding: 15px;
    margin: 20px 0;
}

.email-config-note h5 {
    margin: 0 0 10px 0;
    color: #1565C0;
    font-size: 14px;
}

.email-config-note ul {
    margin: 0;
    padding-left: 20px;
    color: #424242;
    font-size: 13px;
}

.email-config-note li {
    margin-bottom: 5px;
}

#passwordInstructions {
    display: block;
    margin-top: 5px;
    color: #666;
    font-size: 12px;
}

#passwordInstructions a {
    color: #1565C0;
    text-decoration: none;
}

#passwordInstructions a:hover {
    text-decoration: underline;
}

/* Enhanced Mobile Responsiveness for API Dialog */
@media (max-width: 768px) {
    .provider-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .api-provider-group {
        padding: 15px;
    }
    
    .review-options {
        padding: 15px;
    }
    
    .email-config-dialog {
        max-width: 95%;
    }
    
    .email-config-form .form-group {
        margin-bottom: 15px;
    }
    
    .dialog-actions {
        flex-direction: column;
        gap: 10px;
    }
    
    .dialog-actions .btn {
        width: 100%;
    }
}

/* About Page Specific Styles */
.about-header {
    background: url('../images/doha_skyline_02.jpg');
    background-size: cover;
    background-position: center center;
    background-attachment: fixed;
    color: white;
    padding: 120px 0 80px;
    text-align: center;
    position: relative;
}

.about-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(30, 58, 138, 0.3);
    z-index: 1;
}

.about-header .container {
    position: relative;
    z-index: 2;
}

.about-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.about-header p {
    font-size: 1.3rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    margin-bottom: 0;
}

.about-content {
    padding: 60px 0;
    background-color: white;
}

.about-intro {
    text-align: center;
    margin-bottom: 60px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.about-intro h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e3a8a;
    margin-bottom: 30px;
    line-height: 1.2;
}

.about-intro .lead-text {
    font-size: 1.25rem;
    line-height: 1.8;
    color: #4b5563;
    margin-bottom: 0;
    text-align: justify;
}

.about-sections {
    max-width: 1000px;
    margin: 0 auto;
}

.about-section {
    margin-bottom: 25px;
    padding: 25px;
    background-color: #f8f9fa;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.about-section h3 {
    font-size: 2rem;
    font-weight: 600;
    color: #1e3a8a;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 3px solid #3b82f6;
}

.about-section > p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #374151;
    margin-bottom: 15px;
    text-align: justify;
}

.about-paragraph {
    margin-bottom: 8px;
    padding: 0;
}

.about-paragraph h4 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 5px;
}

.about-paragraph p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #4b5563;
    margin-bottom: 0;
    text-align: justify;
}

.about-paragraph ul {
    margin: 0;
    padding-left: 0;
    list-style: none;
}

.about-paragraph li {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #4b5563;
    margin-bottom: 0;
    position: relative;
    padding-left: 20px;
}

.about-paragraph li::before {
    content: "•";
    color: #3b82f6;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.about-paragraph a {
    color: #3b82f6;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.about-paragraph a:hover {
    color: #1e40af;
    text-decoration: underline;
}

/* FAQ Page Styles */
.faq-header {
    background: url('../images/doha_skyline_02.jpg');
    background-size: cover;
    background-position: center center;
    background-attachment: fixed;
    color: white;
    text-align: center;
    padding: 120px 0 80px;
    position: relative;
}

.faq-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 26, 46, 0.8);
    z-index: 1;
}

.faq-header .container {
    position: relative;
    z-index: 2;
}

.faq-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.faq-header p {
    font-size: 1.3rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    margin-bottom: 0;
}

.faq-content {
    padding: 3rem 0;
    background-color: #f9fafb;
}

.faq-sections {
    max-width: 1000px;
    margin: 0 auto;
}

.faq-section {
    margin-bottom: 25px;
    padding: 25px;
    background-color: #f8f9fa;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.faq-section h3 {
    font-size: 2rem;
    font-weight: 600;
    color: #1e3a8a;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 3px solid #3b82f6;
}

.faq-item {
    margin-bottom: 15px;
    padding: 15px 0;
    border-bottom: 1px solid #e5e7eb;
}

.faq-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.faq-item h4 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 8px;
}

.faq-item p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: #4b5563;
    margin-bottom: 0;
    text-align: justify;
}

.faq-item a {
    color: #3b82f6;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.faq-item a:hover {
    color: #1e40af;
    text-decoration: underline;
}

/* Methodology section styling */
.methodology-steps {
    margin: 1.5rem 0;
}

.method-step {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: white;
    border-radius: 8px;
    border-left: 4px solid #42A5F5;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.method-step h5 {
    color: #1f2937;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    margin-top: 0;
}

.method-step ul {
    margin: 0;
    padding-left: 1.2rem;
    list-style-type: disc;
}

.method-step li {
    color: #4b5563;
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.method-step li:last-child {
    margin-bottom: 0;
}

/* FAQ Collapsible Functionality */
.faq-question {
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    transition: color 0.3s ease;
}

.faq-question:hover {
    color: #42A5F5;
}

.faq-toggle {
    font-size: 1.2rem;
    font-weight: bold;
    color: #42A5F5;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-item.active .faq-answer {
    max-height: 1000px;
    transition: max-height 0.5s ease-in;
}

.faq-cta {
    background: linear-gradient(135deg, #1e3a8a, #3b82f6);
    color: white;
    text-align: center;
    padding: 3rem 2rem;
    border-radius: 12px;
    margin-top: 3rem;
}

.faq-cta h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.faq-cta p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

@media (max-width: 768px) {
    .faq-section {
        margin-bottom: 20px;
        padding: 20px 15px;
    }

    .faq-section h3 {
        font-size: 1.6rem;
        margin-bottom: 12px;
    }

    .faq-item {
        margin-bottom: 12px;
        padding: 12px 0;
    }

    .faq-item h4 {
        font-size: 1.2rem;
        margin-bottom: 6px;
    }

    .faq-item p {
        font-size: 1rem;
    }

    .faq-cta {
        padding: 2rem 1rem;
    }

    .faq-cta h3 {
        font-size: 1.6rem;
    }
}

.conference-details {
    margin-top: 25px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.detail-row {
    margin-bottom: 0;
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    border-left: 4px solid #3b82f6;
}

.detail-row h4 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1e3a8a;
    margin-bottom: 12px;
}

.detail-row p {
    font-size: 1.05rem;
    line-height: 1.7;
    color: #4b5563;
    margin-bottom: 0;
}

.about-cta {
    text-align: center;
    margin-top: 60px;
    padding: 50px 40px;
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
    border-radius: 16px;
}

.about-cta h3 {
    font-size: 2rem;
    color: #1e3a8a;
    margin-bottom: 20px;
}

.about-cta p {
    font-size: 1.2rem;
    color: #4b5563;
    margin-bottom: 35px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Mobile Responsiveness for About Page */
@media (max-width: 768px) {
    .about-header {
        padding: 80px 0 60px;
        background-attachment: scroll;
    }
    
    .about-header h1 {
        font-size: 2.2rem;
    }
    
    .about-header p {
        font-size: 1.1rem;
    }
    
    .about-intro h2 {
        font-size: 2rem;
        margin-bottom: 25px;
    }
    
    .about-intro .lead-text {
        font-size: 1.1rem;
    }
    
    .about-section {
        margin-bottom: 20px;
        padding: 20px 15px;
    }
    
    .about-section h3 {
        font-size: 1.6rem;
        margin-bottom: 12px;
    }
    
    .about-paragraph {
        margin-bottom: 6px;
        padding: 0;
    }
    
    .about-paragraph h4 {
        font-size: 1.2rem;
        margin-bottom: 4px;
    }
    
    .conference-details {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .detail-row {
        margin-bottom: 0;
        padding: 15px;
    }

    .about-cta {
        padding: 35px 20px;
    }
}

@media (max-width: 480px) {
    .conference-details {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .detail-row {
        padding: 12px;
    }
    
    .about-cta h3 {
        font-size: 1.6rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}

/* Character counter styles */
.key-info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 5px;
}

.char-counter {
    color: #9ca3af;
    font-size: 0.75rem;
    font-weight: 500;
}

/* Paper Status Page Styles */
.paper-status-header {
    background: url('../images/doha_skyline_02.jpg');
    background-size: cover;
    background-position: center center;
    background-attachment: fixed;
    color: white;
    text-align: center;
    padding: 120px 0 80px;
    position: relative;
}

.paper-status-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 26, 46, 0.8);
    z-index: 1;
}

.paper-status-header .container {
    position: relative;
    z-index: 2;
}

.paper-status-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.paper-status-header p {
    font-size: 1.3rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    margin-bottom: 0;
}

.paper-status-content {
    padding: 3rem 0;
    background-color: #f9fafb;
}

.status-overview {
    margin-bottom: 3rem;
}

.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #3b82f6;
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
}

.stat-card.accepted {
    border-left-color: #10b981;
}

.stat-card.rejected {
    border-left-color: #ef4444;
}

.stat-card.pending {
    border-left-color: #f59e0b;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: #6b7280;
    font-weight: 500;
}

.filters-section {
    margin-bottom: 2rem;
}

.filter-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.filter-select, .search-input {
    padding: 0.75rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 1rem;
    background: white;
    transition: border-color 0.3s ease;
}

.filter-select:focus, .search-input:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.search-input {
    min-width: 250px;
    flex: 1;
}

.papers-table-container {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #e5e7eb;
    border-top-color: #3b82f6;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.table-wrapper {
    overflow-x: auto;
}

.papers-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.papers-table thead {
    background: #f8f9fa;
}

.papers-table th {
    padding: 0.75rem 0.5rem;
    text-align: left;
    font-weight: 600;
    color: #374151;
    border-bottom: 2px solid #e5e7eb;
    white-space: nowrap;
    font-size: 0.8rem;
}

.papers-table td {
    padding: 0.75rem 0.5rem;
    border-bottom: 1px solid #e5e7eb;
    vertical-align: middle;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

.paper-row {
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.paper-row:hover {
    background-color: #f8f9fa;
}

.paper-id {
    font-weight: 600;
    color: #3b82f6;
    min-width: 120px;
    max-width: 120px;
    font-size: 0.8rem;
}

/* Date column specific styling */
.papers-table td:first-child {
    min-width: 100px;
    max-width: 100px;
    font-size: 0.8rem;
}

.paper-title {
    max-width: 300px;
    font-weight: 500;
}

.institution {
    max-width: 200px;
    color: #6b7280;
}

.score {
    font-weight: 600;
    text-align: center;
}

.decision.accepted {
    color: #10b981;
    font-weight: 600;
}

.decision.rejected {
    color: #ef4444;
    font-weight: 600;
}

.decision.pending {
    color: #f59e0b;
    font-weight: 600;
}

.status-badge {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    text-align: center;
    white-space: nowrap;
}

.status-badge.accepted {
    background: #d1fae5;
    color: #065f46;
}

.status-badge.rejected {
    background: #fee2e2;
    color: #991b1b;
}

.status-badge.pending {
    background: #fef3c7;
    color: #92400e;
}

.no-papers {
    text-align: center;
    padding: 3rem;
    color: #6b7280;
    font-style: italic;
}

.error-message {
    background: white;
    border-radius: 12px;
    padding: 3rem;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.error-message p {
    color: #ef4444;
    font-size: 1.1rem;
}


/* Paper Pipeline Page Styles */
.pipeline-header {
    background: url('../images/doha_skyline_02.jpg');
    background-size: cover;
    background-position: center center;
    background-attachment: fixed;
    color: white;
    text-align: center;
    padding: 120px 0 80px;
    position: relative;
}

.pipeline-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 26, 46, 0.8);
    z-index: 1;
}

.pipeline-header .container {
    position: relative;
    z-index: 2;
}

.pipeline-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.pipeline-header p {
    font-size: 1.3rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    margin-bottom: 0;
}

.pipeline-content {
    padding: 3rem 0;
    background-color: #f9fafb;
}

.back-navigation {
    margin-bottom: 2rem;
}

.back-btn {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    background: white;
    color: #3b82f6;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.back-btn:hover {
    background: #3b82f6;
    color: white;
    transform: translateY(-1px);
}

.paper-info-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 3rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.paper-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    gap: 2rem;
}

.paper-title-section h2 {
    font-size: 1.8rem;
    color: #1f2937;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.paper-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    color: #6b7280;
}

.paper-status-section {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 1rem;
}

.final-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1.1rem;
}

.final-status.accepted {
    background: #d1fae5;
    color: #065f46;
}

.final-status.rejected {
    background: #fee2e2;
    color: #991b1b;
}

.status-icon {
    font-size: 1.5rem;
}

.paper-score {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.score-label {
    font-size: 0.875rem;
    color: #6b7280;
    margin-bottom: 0.25rem;
}

.score-value {
    font-size: 2rem;
    font-weight: 700;
    color: #1f2937;
}

.paper-details {
    border-top: 1px solid #e5e7eb;
    padding-top: 1.5rem;
}

.pipeline-stages .detail-row {
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

.pipeline-stages {
    margin-bottom: 3rem;
}

.stage-container {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0;
    align-items: flex-start;
    justify-content: center;
    padding: 1rem 0;
}

.pipeline-stage {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem;
    background: white;
    border-radius: 8px;
    margin: 0.5rem;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    position: relative;
    flex: 1 1 220px;
    max-width: 280px;
    min-width: 200px;
    min-height: 180px;
}

.pipeline-stage.completed {
    border-top: 4px solid #10b981;
}

.pipeline-stage.not-available {
    border-top: 4px solid #e5e7eb;
    opacity: 0.7;
}

.pipeline-stage.optional {
    border-top: 4px solid #f59e0b;
}

/* Ensure dataset stage maintains consistent height */
#stage-dataset {
    min-height: 180px !important;
    height: auto;
    flex: 1 1 220px;
    display: flex !important;
    flex-direction: column;
    justify-content: space-between;
}

#stage-dataset .stage-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

#stage-dataset .stage-actions {
    margin-top: auto;
}

.stage-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f3f4f6;
    flex-shrink: 0;
}

.pipeline-stage.completed .stage-icon {
    background: #d1fae5;
}

.pipeline-stage.not-available .stage-icon {
    background: #f9fafb;
}

.pipeline-stage.optional .stage-icon {
    background: #fef3c7;
}

.stage-number {
    font-weight: 700;
    font-size: 1.1rem;
    color: #374151;
}

.stage-content {
    text-align: center;
    width: 100%;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.stage-content h3 {
    font-size: 1.1rem;
    color: #1f2937;
    margin-bottom: 0.4rem;
    font-weight: 600;
}

.stage-content p {
    color: #6b7280;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    line-height: 1.4;
}

.stage-actions {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
    margin-top: auto;
    justify-content: center;
    width: 100%;
}

.stage-action {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem 0.7rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    font-size: 0.8rem;
    flex: 1;
    min-width: fit-content;
    text-align: center;
    justify-content: center;
}

.stage-action.download-link {
    background: #3b82f6;
    color: white;
}

.stage-action.download-link:hover {
    background: #2563eb;
    transform: translateY(-1px);
}

.stage-action.unavailable {
    background: #f3f4f6;
    color: #9ca3af;
    cursor: not-allowed;
}

.stage-action.dataset-link {
    background: linear-gradient(135deg, #2196F3 0%, #1976D2 100%);
    color: white;
    border: none;
}

.stage-action.dataset-link:hover {
    background: linear-gradient(135deg, #1976D2 0%, #1565C0 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.3);
}

.stage-action.disabled {
    background: #e8f5e8;
    color: #4caf50;
    cursor: default;
}

.action-icon {
    font-size: 1.1rem;
}

.stage-status {
    position: absolute;
    right: 0.75rem;
    top: 0.75rem;
}

.status-indicator {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: block;
}

.status-indicator.completed {
    background: #10b981;
}

.status-indicator.not-available {
    background: #e5e7eb;
}

.status-indicator.optional {
    background: #f59e0b;
}

.pipeline-connector {
    display: none;
}

/* Responsive design for pipeline stages */
@media (max-width: 768px) {
    .pipeline-content .container {
        padding: 0 10px;
    }

    .stage-container {
        flex-direction: column;
        align-items: center;
        margin: 0 -10px;
    }

    .pipeline-stage {
        margin: 0 10px 1rem 10px;
        max-width: calc(100% - 20px);
        min-width: auto;
        width: calc(100% - 20px);
        box-sizing: border-box;
    }

    .pipeline-connector {
        width: 2px;
        height: 2rem;
        margin: 0 auto -1rem auto;
    }

    .pipeline-stage.completed {
        border-top: none;
        border-left: 4px solid #10b981;
    }

    .pipeline-stage.not-available {
        border-top: none;
        border-left: 4px solid #e5e7eb;
    }

    .pipeline-stage.optional {
        border-top: none;
        border-left: 4px solid #f59e0b;
    }

    /* Ensure dataset stage maintains consistent height on mobile */
    #stage-dataset {
        min-height: 180px !important;
        display: flex !important;
        flex-direction: column;
        justify-content: space-between;
    }

    #stage-dataset .stage-content {
        flex-grow: 1;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
}

.decision-summary {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Video Modal Popup */
.video-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    backdrop-filter: blur(5px);
}

.video-modal-content {
    background: white;
    border-radius: 12px;
    padding: 0;
    width: 1200px;
    max-width: 90vw;
    height: 700px;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
}

.video-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #e5e7eb;
    background: #f8f9fa;
    flex-shrink: 0;
    height: 70px;
    box-sizing: border-box;
}

.video-modal-header h3 {
    margin: 0;
    font-size: 1rem;
    color: #374151;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: calc(100% - 50px);
}

.close-video-modal {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: #6b7280;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.close-video-modal:hover {
    background: #e5e7eb;
    color: #374151;
}

.video-main-section .video-container {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    overflow: hidden;
}

.video-main-section .video-container video {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
}

/* Video Presentation Layout with Chat Sidebar */
.video-presentation-layout {
    display: flex;
    height: calc(100% - 70px); /* Subtract header height */
    flex: 1;
    overflow: hidden;
}

.video-main-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.video-chat-sidebar {
    width: 350px;
    border-left: 1px solid #e5e7eb;
    background: #f8f9fa;
    display: flex;
    flex-direction: column;
    height: 100%;
    max-height: 100%;
    overflow: hidden;
}

.video-chat-header {
    padding: 1rem;
    border-bottom: 1px solid #e5e7eb;
    background: #fff;
    flex-shrink: 0;
    height: 80px;
    box-sizing: border-box;
}

.video-chat-header h4 {
    margin: 0 0 0.25rem 0;
    font-size: 1rem;
    color: #374151;
}

.video-chat-header small {
    color: #6b7280;
    font-size: 0.875rem;
    display: block;
    margin-top: 0.25rem;
}

.video-chat-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: calc(100% - 80px); /* Account for header height */
    background: white;
    overflow: hidden;
}

.video-chat-sidebar .chat-messages {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    background: white;
    height: calc(100% - 80px); /* Account for input container height */
    min-height: 0; /* Important for proper flex shrinking */
}

.video-chat-sidebar .chat-input-container {
    padding: 1rem;
    border-top: 1px solid #e5e7eb;
    background: #f8f9fa;
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0; /* Prevent input from shrinking */
    height: 80px;
    box-sizing: border-box;
}

.video-chat-sidebar .message-input {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 0.875rem;
}

.video-chat-sidebar .send-button {
    padding: 0.5rem 1rem;
    background: #2c5aa0;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.875rem;
    transition: background 0.2s;
}

.video-chat-sidebar .send-button:hover:not(:disabled) {
    background: #1d4ed8;
}

.video-chat-sidebar .send-button:disabled {
    background: #9ca3af;
    cursor: not-allowed;
}

/* Responsive adjustments for video with chat */
@media (max-width: 1200px) {
    .video-chat-sidebar {
        width: 300px;
    }

    .video-modal-content {
        max-width: 95vw;
    }
}

@media (max-width: 768px) {
    .video-presentation-layout {
        flex-direction: column;
        height: auto;
        max-height: 90vh;
    }

    .video-chat-sidebar {
        width: 100%;
        height: 300px;
        border-left: none;
        border-top: 1px solid #e5e7eb;
    }

    .video-main-section {
        flex: none;
    }

    .video-container video {
        width: 100%;
        height: auto;
        max-height: 40vh;
    }
}

.stage-action.video-link {
    background: #dc2626;
    color: white;
    border: none;
    cursor: pointer;
}

.stage-action.video-link:hover {
    background: #b91c1c;
}

.error-state {
    text-align: center;
    padding: 4rem 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.error-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.error-state h3 {
    color: #ef4444;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.error-state p {
    color: #6b7280;
    margin-bottom: 2rem;
}

/* Submissions Closed Notice */
.submissions-closed-notice {
    background: linear-gradient(135deg, #fee2e2 0%, #fef3c7 100%);
    padding: 2rem 0;
    border-top: 4px solid #dc2626;
    border-bottom: 4px solid #dc2626;
}

.notice-card {
    background: white;
    border-radius: 16px;
    padding: 2.5rem;
    text-align: center;
    box-shadow: 0 8px 24px rgba(220, 38, 38, 0.15);
    border: 2px solid #fecaca;
    max-width: 800px;
    margin: 0 auto;
}

.notice-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.notice-card h2 {
    color: #dc2626;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.notice-card p {
    color: #4b5563;
    font-size: 1.2rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.notice-actions {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.notice-actions .btn {
    padding: 12px 24px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
}

.notice-actions .btn-primary {
    background: #dc2626;
    color: white;
    border: 2px solid #dc2626;
}

.notice-actions .btn-primary:hover {
    background: #b91c1c;
    border-color: #b91c1c;
    transform: translateY(-2px);
}

.notice-actions .btn-secondary {
    background: transparent;
    color: #dc2626;
    border: 2px solid #dc2626;
}

.notice-actions .btn-secondary:hover {
    background: #dc2626;
    color: white;
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .notice-card {
        padding: 2rem 1.5rem;
        margin: 0 1rem;
    }

    .notice-card h2 {
        font-size: 2rem;
    }

    .notice-card p {
        font-size: 1.1rem;
    }

    .notice-actions {
        flex-direction: column;
        align-items: center;
    }

    .notice-actions .btn {
        width: 100%;
        max-width: 300px;
    }
}

/* Status checker info styling */
.status-checker-info {
    color: #4b5563;
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    text-align: center;
    background: #f3f4f6;
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid #3b82f6;
}

/* Paper Session Styling */
.schedule-item.paper-session {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-left: 4px solid #10b981;
    margin-bottom: 1rem;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.paper-session .event h4 {
    color: #1e40af;
    margin-bottom: 0.75rem;
    font-size: 1.2rem;
}

.paper-session .event p {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.paper-session .event p strong {
    color: #374151;
    font-weight: 600;
}

.paper-actions {
    margin-top: 1rem;
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.btn-video {
    background: #dc2626;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-video:hover {
    background: #b91c1c;
    transform: translateY(-1px);
}

.btn-chat {
    background: #3b82f6;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-chat:hover {
    background: #2563eb;
    transform: translateY(-1px);
}

.btn-pipeline {
    background: #059669;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-pipeline:hover {
    background: #047857;
    transform: translateY(-1px);
    text-decoration: none;
    color: white;
}

.btn-watch {
    background: #dc2626;
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-watch:hover {
    background: #b91c1c;
    transform: translateY(-1px);
    text-decoration: none;
    color: white;
}

.btn-watch-small {
    background: #dc2626;
    color: white;
    border: none;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    margin-top: 0.5rem;
}

.btn-watch-small:hover {
    background: #b91c1c;
    transform: translateY(-1px);
}

/* Chat Instructions Modal */
.chat-instructions-content {
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
}

.chat-instructions-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px;
    border-radius: 12px 12px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-instructions-header h3 {
    margin: 0;
    font-size: 1.3rem;
}

.close-chat-instructions {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    font-size: 24px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s;
}

.close-chat-instructions:hover {
    background: rgba(255, 255, 255, 0.3);
}

.chat-instructions-body {
    padding: 30px;
}

.chat-instructions-body h4 {
    color: #333;
    font-size: 1.1rem;
    margin-bottom: 15px;
    padding-bottom: 8px;
    border-bottom: 2px solid #667eea;
}

.chat-instructions-body p {
    margin-bottom: 15px;
    line-height: 1.6;
    color: #555;
}

.chat-instructions-body ol {
    margin: 15px 0;
    padding-left: 20px;
}

.chat-instructions-body li {
    margin-bottom: 8px;
    line-height: 1.5;
    color: #555;
}

.command-box {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 15px;
    margin: 15px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.command-box code {
    background: transparent;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: #333;
    flex: 1;
    word-break: break-all;
}

.copy-btn {
    background: #007bff;
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: background-color 0.3s;
    white-space: nowrap;
}

.copy-btn:hover {
    background: #0056b3;
}

.note {
    background: #e3f2fd;
    border-left: 4px solid #2196f3;
    padding: 12px 15px;
    margin: 15px 0;
    border-radius: 4px;
    font-size: 0.9rem;
    color: #1565c0;
}

.instruction-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #e9ecef;
}

@media (max-width: 768px) {
    .chat-instructions-content {
        width: 95%;
        margin: 10px;
    }

    .chat-instructions-header {
        padding: 15px;
    }

    .chat-instructions-header h3 {
        font-size: 1.1rem;
    }

    .chat-instructions-body {
        padding: 20px;
    }

    .command-box {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .copy-btn {
        align-self: flex-end;
    }

    .instruction-actions {
        flex-direction: column;
    }

    .instruction-actions .btn {
        width: 100%;
        justify-content: center;
    }
}

/* Chat Options Modal */
.chat-options-content {
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
}

.chat-options-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px;
    border-radius: 12px 12px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-options-header h3 {
    margin: 0;
    font-size: 1.3rem;
}

.close-chat-options {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    font-size: 24px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s;
}

.close-chat-options:hover {
    background: rgba(255, 255, 255, 0.3);
}

.chat-options-body {
    padding: 30px;
}

.chat-options-body h4 {
    color: #333;
    font-size: 1.1rem;
    margin-bottom: 15px;
    padding-bottom: 8px;
    border-bottom: 2px solid #667eea;
}

.chat-options-body p {
    margin-bottom: 20px;
    color: #555;
    line-height: 1.6;
}

.chat-option-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin: 20px 0;
}

.chat-option-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px;
    border: 2px solid transparent;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
}

.chat-option-btn small {
    display: block;
    font-size: 0.85rem;
    margin-top: 5px;
    opacity: 0.8;
    font-weight: normal;
}

.btn.btn-tertiary {
    background: #28a745;
    color: white;
    border: 2px solid #28a745;
}

.btn.btn-tertiary:hover {
    background: #218838;
    border-color: #218838;
    transform: translateY(-2px);
}

.chat-option-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.chat-note {
    background: #f8f9fa;
    padding: 12px;
    border-radius: 6px;
    font-size: 0.9rem;
    color: #666;
    border-left: 4px solid #667eea;
    margin-top: 20px;
}

.backend-status {
    background: #f8f9fa;
    padding: 10px;
    border-radius: 6px;
    text-align: center;
    margin: 15px 0;
    font-size: 0.9rem;
    border: 1px solid #e9ecef;
}

/* Inline Chat Modal */
.inline-chat-container {
    background: white;
    border-radius: 12px;
    width: 90%;
    height: 85%;
    max-width: 1000px;
    max-height: 700px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.inline-chat-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px 20px;
    border-radius: 12px 12px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

.inline-chat-header h3 {
    margin: 0;
    font-size: 1.2rem;
}

.close-inline-chat {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    font-size: 24px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s;
}

.close-inline-chat:hover {
    background: rgba(255, 255, 255, 0.3);
}

.inline-chat-content {
    flex: 1;
    overflow: hidden;
}

.inline-chat-content {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.embedded-chat {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 0 0 12px 12px;
}

.embedded-chat .chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: transparent;
    border-radius: 0;
    margin-bottom: 0;
}

.embedded-chat .message {
    margin-bottom: 15px;
    padding: 12px 16px;
    border-radius: 10px;
    max-width: 80%;
    word-wrap: break-word;
}

.embedded-chat .user-message {
    background: #007bff;
    color: white;
    margin-left: auto;
}

.embedded-chat .assistant-message {
    background: rgba(255, 255, 255, 0.9);
    color: #333;
    margin-right: auto;
}

.embedded-chat .connection-status {
    text-align: center;
    padding: 10px;
    font-style: italic;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.chat-input-container {
    display: flex;
    gap: 10px;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 0 0 12px 12px;
}

.chat-input-container .message-input {
    flex: 1;
    padding: 12px 16px;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    outline: none;
    background: rgba(255, 255, 255, 0.9);
}

.chat-input-container .send-button {
    padding: 12px 24px;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.3s;
}

.chat-input-container .send-button:hover {
    background: #0056b3;
}

.chat-input-container .send-button:disabled {
    background: #ccc;
    cursor: not-allowed;
}

@media (max-width: 768px) {
    .chat-options-content {
        width: 95%;
        margin: 10px;
    }

    .chat-options-header,
    .chat-options-body {
        padding: 15px;
    }

    .chat-options-header h3 {
        font-size: 1.1rem;
    }

    .chat-option-btn {
        padding: 15px;
    }

    .inline-chat-container {
        width: 95%;
        height: 90%;
    }

    .inline-chat-header {
        padding: 12px 15px;
    }

    .inline-chat-header h3 {
        font-size: 1rem;
    }

    .embedded-chat .chat-messages {
        padding: 15px;
    }

    .embedded-chat .message {
        max-width: 95%;
    }

    .chat-input-container {
        padding: 10px 15px;
    }

    .chat-input-container .message-input {
        font-size: 16px; /* Prevents zoom on iOS */
    }
}

@media (max-width: 768px) {
    .paper-actions {
        flex-direction: column;
    }

    .btn-video,
    .btn-chat,
    .btn-pipeline,
    .btn-watch,
    .btn-watch-small {
        width: 100%;
        justify-content: center;
    }

    /* Reorganize paper header for mobile: decision, score, then title */
    .paper-header {
        flex-direction: column;
        gap: 1rem;
    }

    .paper-status-section {
        order: 1; /* Decision and score come first */
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 0.5rem;
        margin-bottom: 1rem;
        padding-bottom: 1rem;
        border-bottom: 1px solid #e5e7eb;
    }

    .paper-title-section {
        order: 2; /* Title comes after decision and score */
        text-align: center;
    }

    .paper-title-section h2 {
        font-size: 1.4rem;
        line-height: 1.3;
        margin-bottom: 0.8rem;
    }

    .paper-meta {
        display: flex;
        flex-direction: column;
        gap: 0.3rem;
        font-size: 0.9rem;
    }

    .final-status {
        font-size: 1.1rem;
        font-weight: 600;
    }

    .paper-score {
        font-size: 1rem;
        font-weight: 600;
    }
}

/* Proceedings Page Styles */
.proceedings-content {
    padding: 4rem 0;
    background: #f8f9fa;
}

.proceedings-intro {
    text-align: center;
    margin-bottom: 4rem;
}

.hikma-title-container {
    margin-bottom: 2rem;
}

.hikma-title-image {
    max-width: 600px;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1));
}

.proceedings-intro h2 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 2.5rem;
}

.ebook-showcase {
    display: block;
    margin-bottom: 4rem;
}

.ebook-preview {
    text-align: center;
}

.ebook-cover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    transform: perspective(1000px) rotateY(-5deg);
    transition: transform 0.3s ease;
}

.ebook-cover:hover {
    transform: perspective(1000px) rotateY(0deg) scale(1.02);
}

.ebook-cover-image {
    width: 120px;
    height: auto;
    margin-bottom: 1rem;
    filter: drop-shadow(0 4px 8px rgba(255,255,255,0.3));
}

.ebook-info h3 {
    color: white;
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.ebook-info p {
    color: rgba(255,255,255,0.9);
    margin-bottom: 1rem;
}

.ebook-details {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.detail-item {
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
}

.ebook-description h3 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.content-highlights {
    display: grid;
    gap: 1.5rem;
}

.highlight-item {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    border-left: 4px solid #667eea;
}

.highlight-item h4 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.highlight-item p {
    color: #666;
    line-height: 1.6;
}

/* Featured Publication Section on Home Page */
.featured-publication {
    padding: 4rem 0;
    background: #f8f9fa;
}

/* arXiv Paper Section */
.arxiv-paper-section {
    margin-bottom: 4rem;
    padding: 3rem 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 15px;
}

.arxiv-paper-section h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #2d3748;
}

.arxiv-paper-card {
    display: flex;
    gap: 2rem;
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    max-width: 1000px;
    margin: 0 auto;
}

.paper-image {
    flex-shrink: 0;
}

.paper-thumbnail {
    width: 250px;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
    transition: transform 0.3s ease;
}

.paper-thumbnail:hover {
    transform: scale(1.05);
}

.paper-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.paper-details h3 {
    color: #2d3748;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.paper-description {
    color: #4a5568;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.paper-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.paper-links .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.paper-links .btn-primary {
    background: #667eea;
    color: white;
}

.paper-links .btn-primary:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.paper-links .btn-secondary {
    background: #48bb78;
    color: white;
}

.paper-links .btn-secondary:hover {
    background: #38a169;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(72, 187, 120, 0.4);
}

.paper-metadata {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    font-size: 0.9rem;
    color: #718096;
    margin-top: 0.5rem;
}

.paper-metadata span {
    display: flex;
    align-items: center;
}

/* Responsive Design for arXiv Paper Card */
@media (max-width: 768px) {
    .arxiv-paper-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .paper-thumbnail {
        width: 200px;
    }

    .paper-links {
        justify-content: center;
    }

    .paper-metadata {
        justify-content: center;
    }
}

.download-section {
    margin-bottom: 4rem;
    text-align: center;
}

.download-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    max-width: 600px;
    margin: 0 auto;
}

.download-card h3 {
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.download-card p {
    margin-bottom: 2rem;
    opacity: 0.9;
}

.download-options {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255,255,255,0.2);
    color: white;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.download-btn:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.btn-icon {
    font-size: 1.2rem;
}

.download-info {
    display: flex;
    gap: 1rem;
    font-size: 0.9rem;
    opacity: 0.8;
}

.proceedings-stats {
    margin-bottom: 4rem;
}

.proceedings-stats h3 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 2rem;
    font-size: 2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat-card {
    background: white;
    text-align: center;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    color: #667eea;
    display: block;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #666;
    font-size: 1.1rem;
}

.citation-info {
    margin-bottom: 4rem;
}

.citation-info h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.citation-box {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    border-left: 4px solid #667eea;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.citation-text {
    font-style: italic;
    color: #555;
    margin: 1rem 0;
    line-height: 1.6;
}

.copy-citation-btn {
    background: #667eea;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.copy-citation-btn:hover {
    background: #5a67d8;
}

.acknowledgments {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.acknowledgments h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.acknowledgments p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 2rem;
}

.institutional-support h4 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.institutional-support p {
    color: #666;
    margin: 0;
}

/* Responsive Design for Proceedings */
@media (max-width: 768px) {
    .ebook-showcase {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .ebook-cover {
        transform: none;
    }
    
    .ebook-cover:hover {
        transform: scale(1.02);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .download-info {
        flex-direction: column;
        gap: 0.5rem;
    }
}


/* Podcast Header */
.podcast-header {
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)),
                url('../images/pattern_blue.png');
}

/* Podcast Header Logo */
.podcast-header .page-header-logo {
    filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.9))
            drop-shadow(0 0 8px rgba(30, 144, 255, 0.7))
            drop-shadow(0 0 12px rgba(135, 206, 235, 0.6))
            drop-shadow(0 0 16px rgba(70, 130, 180, 0.5))
            brightness(1.3);
    transition: all 0.3s ease;
}

.podcast-header .page-header-logo:hover {
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.9))
            drop-shadow(0 0 12px rgba(30, 144, 255, 0.8))
            drop-shadow(0 0 18px rgba(135, 206, 235, 0.7))
            drop-shadow(0 0 24px rgba(70, 130, 180, 0.6))
            brightness(1.3);
}

/* Podcast Page Styles */
.podcast-content {
    padding: 4rem 0;
    background: #f8f9fa;
}

.podcast-intro {
    text-align: center;
    margin-bottom: 4rem;
}

.podcast-intro h2 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 2.5rem;
}

.podcast-player-section {
    margin-bottom: 4rem;
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.video-player-container {
    padding: 2rem;
}

.video-wrapper {
    position: relative;
    width: 100%;
    margin-bottom: 2rem;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.podcast-video {
    width: 100%;
    height: auto;
    min-height: 400px;
    background: #000;
}

.video-fallback-image {
    width: 100%;
    height: auto;
    display: none;
    object-fit: cover;
}

.video-controls {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 1.5rem;
}

.video-info h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.video-description {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.video-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.meta-item {
    background: #e9ecef;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
    color: #495057;
}

.podcast-highlights {
    margin-bottom: 4rem;
}

.podcast-highlights h3 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 2rem;
    font-size: 2rem;
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.highlight-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.highlight-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.highlight-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.highlight-card h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.highlight-card p {
    color: #666;
    line-height: 1.6;
}

.podcast-topics {
    margin-bottom: 4rem;
}

.podcast-topics h3 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 2rem;
    font-size: 2rem;
}

.topics-timeline {
    max-width: 800px;
    margin: 0 auto;
}

.topic-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    align-items: flex-start;
}

.topic-marker {
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 0.3rem;
    position: relative;
}

.topic-marker::after {
    content: "";
    position: absolute;
    top: 20px;
    left: 50%;
    width: 2px;
    height: 40px;
    background: #e9ecef;
    transform: translateX(-50%);
}

.topic-item:last-child .topic-marker::after {
    display: none;
}

.topic-content {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
    flex: 1;
}

.topic-content h4 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.topic-content p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

.podcast-about {
    margin-bottom: 4rem;
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
}

.podcast-about h3 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.about-content p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.podcast-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
    color: #667eea;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #666;
    font-size: 1rem;
}

.podcast-cta {
    text-align: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.podcast-cta h3 {
    margin-bottom: 1rem;
    font-size: 2rem;
}

.podcast-cta p {
    margin-bottom: 2rem;
    opacity: 0.9;
    font-size: 1.1rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.cta-buttons .btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.cta-buttons .btn-primary {
    background: rgba(255,255,255,0.2);
    color: white;
    border: 2px solid rgba(255,255,255,0.3);
}

.cta-buttons .btn-primary:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-2px);
}

.cta-buttons .btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255,255,255,0.5);
}

.cta-buttons .btn-secondary:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-2px);
}

/* Responsive Design for Podcast */
@media (max-width: 768px) {
    .podcast-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .highlights-grid {
        grid-template-columns: 1fr;
    }
    
    .topic-item {
        flex-direction: column;
        gap: 1rem;
    }
    
    .topic-marker {
        align-self: flex-start;
    }
    
    .video-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-buttons .btn {
        min-width: 200px;
    }
}