/* EAMT 2026 Conference - Modern Visual Effects CSS */

:root {
    /* Classic Design with Subtle Tilburg Theme */
    --primary-color: #2c3e50;        /* Classic dark blue-gray */
    --secondary-color: #8B7355;      /* Subtle Tilburg bronze accent */
    --accent-color: #3498db;         /* Classic blue */
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #2c3e50;
    --white: #ffffff;
    --tilburg-accent: #8B7355;       /* Subtle Tilburg bronze for small accents */
    --shadow-light: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-medium: 0 2px 6px rgba(0,0,0,0.1);
    --shadow-heavy: 0 4px 12px rgba(0,0,0,0.15);
    --border-radius: 6px;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    line-height: 1.2;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.section-subtitle {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 3rem;
}

/* Navigation */
.navbar {
    background: var(--primary-color);
    transition: var(--transition);
    padding: 1rem 0;
    border-bottom: 3px solid var(--tilburg-accent);
}

.navbar-brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.brand-text {
    font-family: 'Poppins', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--white);
    margin: 0;
}

.brand-subtitle {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.navbar-nav .nav-link {
    color: var(--white) !important;
    font-weight: 500;
    margin: 0 0.5rem;
    transition: var(--transition);
    position: relative;
}

.navbar-nav .nav-link:hover {
    color: var(--tilburg-accent) !important;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--tilburg-accent);
    transition: var(--transition);
    transform: translateX(-50%);
}

.navbar-nav .nav-link:hover::after {
    width: 100%;
}

/* Navbar Toggler */
.navbar-toggler {
    border: 2px solid #ffffff !important;
    padding: 0.5rem 0.75rem !important;
    background: transparent !important;
    border-radius: 8px !important;
    transition: all 0.3s ease;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    position: relative !important;
    z-index: 1050 !important;
    width: auto !important;
    height: auto !important;
    min-width: 44px !important;
    min-height: 44px !important;
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 0.2rem rgba(255, 255, 255, 0.25);
}

.navbar-toggler-icon {
    background-image: none !important;
    background: none !important;
    width: 24px !important;
    height: 18px !important;
    position: relative !important;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.navbar-toggler-icon::before {
    content: '' !important;
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    width: 24px !important;
    height: 2px !important;
    background: #ffffff !important;
    border-radius: 1px !important;
}

.navbar-toggler-icon::after {
    content: '' !important;
    position: absolute !important;
    top: 8px !important;
    left: 0 !important;
    width: 24px !important;
    height: 2px !important;
    background: #ffffff !important;
    border-radius: 1px !important;
}

.navbar-toggler-icon span {
    position: absolute !important;
    top: 16px !important;
    left: 0 !important;
    width: 24px !important;
    height: 2px !important;
    background: #ffffff !important;
    border-radius: 1px !important;
    display: block !important;
}

.navbar-toggler:hover {
    border-color: #dc3545;
}

/* Hide navbar toggler by default on large screens */
.navbar-toggler,
button.navbar-toggler,
.navbar .navbar-toggler {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
}

/* Show hamburger button only on smaller screens */
@media (max-width: 991.98px) {
    .navbar-toggler,
    button.navbar-toggler,
    .navbar .navbar-toggler {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        border: 2px solid #ffffff !important;
        background: transparent !important;
        position: relative !important;
        z-index: 1050 !important;
        width: auto !important;
        height: auto !important;
        min-width: 44px !important;
        min-height: 44px !important;
        padding: 0.5rem 0.75rem !important;
    }
    
    .navbar-collapse {
        background: rgba(0, 0, 0, 0.9);
        margin-top: 1rem;
        padding: 1rem;
        border-radius: 8px;
    }
}

.dropdown-menu {
    background: var(--white);
    border: 1px solid #dee2e6;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
}

.dropdown-item {
    color: var(--dark-color);
    transition: var(--transition);
}

.dropdown-item:hover {
    background: var(--light-color);
    color: var(--accent-color);
}

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--primary-color);
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(139, 115, 85, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 115, 85, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    background-image: url('../images/tilburgUnilandscape.webp');
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
    background-attachment: fixed;
    background-blend-mode: overlay;
    opacity: 0.8;
    z-index: 1;
    will-change: transform;
    transform: translateZ(0);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    z-index: 2;
}

.floating-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 100px;
    height: 100px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 150px;
    height: 150px;
    top: 60%;
    right: 10%;
    animation-delay: 2s;
}

.shape-3 {
    width: 80px;
    height: 80px;
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

/* Language Elements */
.language-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.lang-float {
    position: absolute;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 25px;
    padding: 0.8rem 1.5rem;
    color: var(--white);
    font-weight: 600;
    font-size: 0.9rem;
    animation: langFloat 8s ease-in-out infinite;
    white-space: nowrap;
}

.lang-1 {
    top: 15%;
    right: 15%;
    animation-delay: 0s;
}

.lang-2 {
    top: 45%;
    left: 10%;
    animation-delay: 2s;
}

.lang-3 {
    bottom: 25%;
    right: 20%;
    animation-delay: 4s;
}

.lang-4 {
    top: 25%;
    left: 25%;
    animation-delay: 6s;
}

.lang-5 {
    top: 65%;
    left: 15%;
    animation-delay: 8s;
}

@keyframes langFloat {
    0%, 100% { transform: translateY(0px) translateX(0px); }
    25% { transform: translateY(-15px) translateX(10px); }
    50% { transform: translateY(-10px) translateX(-5px); }
    75% { transform: translateY(-20px) translateX(15px); }
}

/* LLM Elements */
.llm-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.llm-float {
    position: absolute;
    background: rgba(99, 102, 241, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(99, 102, 241, 0.4);
    border-radius: 20px;
    padding: 0.8rem 1.2rem;
    color: var(--white);
    font-weight: 600;
    font-size: 0.9rem;
    animation: llmFloat 10s ease-in-out infinite;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.llm-float i {
    font-size: 1rem;
    color: var(--accent-color);
}

.llm-1 {
    top: 35%;
    right: 25%;
    animation-delay: 0s;
}

.llm-2 {
    top: 55%;
    left: 35%;
    animation-delay: 3s;
}

.llm-3 {
    bottom: 35%;
    left: 25%;
    animation-delay: 6s;
}

@keyframes llmFloat {
    0%, 100% { transform: translateY(0px) translateX(0px) rotate(0deg); }
    25% { transform: translateY(-20px) translateX(15px) rotate(5deg); }
    50% { transform: translateY(-15px) translateX(-10px) rotate(-3deg); }
    75% { transform: translateY(-25px) translateX(20px) rotate(8deg); }
}

.hero-content {
    position: relative;
    z-index: 3;
    color: var(--white);
}

.eamt-logo-container {
    margin-bottom: 2rem;
    text-align: center;
}

.eamt-logo {
    max-width: 200px;
    height: auto;
    background: white;
    padding: 15px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
    transition: var(--transition);
}

.eamt-logo:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 6px 12px rgba(0,0,0,0.4));
}

.hero-title {
    margin-bottom: 2rem;
}

.title-line {
    display: block;
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.title-subtitle {
    display: block;
    font-size: 1.5rem;
    font-weight: 400;
    opacity: 0.9;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 50px;
    padding: 0.8rem 2rem;
    margin-bottom: 2rem;
}

.badge-text {
    font-size: 1.1rem;
    font-weight: 600;
}

.hero-info {
    margin-bottom: 3rem;
}

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

.info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: var(--transition);
}

.info-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.2);
}

.info-item i {
    font-size: 1.5rem;
    color: var(--secondary-color);
}

.info-item span {
    font-size: 1.1rem;
    font-weight: 500;
}

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

.btn {
    padding: 1rem 2rem;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--primary-color);
    border: 2px solid var(--tilburg-accent);
    box-shadow: var(--shadow-medium);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(139, 115, 85, 0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
}

.btn-outline-light {
    border: 2px solid var(--white);
    color: var(--white);
}

.btn-outline-light:hover {
    background: var(--white);
    color: var(--primary-color);
    transform: translateY(-3px);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

.scroll-arrow {
    width: 30px;
    height: 30px;
    border: 2px solid var(--white);
    border-top: none;
    border-left: none;
    transform: rotate(45deg);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0) rotate(45deg); }
    40% { transform: translateX(-50%) translateY(-10px) rotate(45deg); }
    60% { transform: translateX(-50%) translateY(-5px) rotate(45deg); }
}

/* About Section */
.about-section {
    padding: 6rem 0;
    background: var(--white);
    position: relative;
}

.about-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: var(--tilburg-accent);
}

.about-content {
    padding-right: 2rem;
}

.about-content p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #555;
}

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

.feature-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--light-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateX(10px);
    background: var(--primary-color);
    color: var(--white);
}

.feature-item i {
    font-size: 1.5rem;
    color: var(--secondary-color);
    transition: var(--transition);
}

.feature-item:hover i {
    color: var(--white);
}

.about-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.visual-container {
    width: 100%;
    max-width: 400px;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.tech-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--primary-color);
    border-radius: var(--border-radius);
    color: var(--white);
    transition: var(--transition);
    box-shadow: var(--shadow-medium);
    border: 2px solid var(--tilburg-accent);
}

.tech-item:hover {
    transform: scale(1.05) rotate(5deg);
    box-shadow: var(--shadow-heavy);
}

.tech-item i {
    font-size: 2.5rem;
    margin-bottom: 0.8rem;
    display: block;
    color: var(--tilburg-accent);
}

.tech-item span {
    font-size: 1rem;
    font-weight: 600;
}

/* Teaser Section */
.teaser-section {
    padding: 6rem 0;
    background: var(--light-color);
}

.video-container {
    max-width: 800px;
    margin: 0 auto 3rem;
}

.video-player {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    background: var(--gradient-primary);
    transition: var(--transition);
}

.video-player:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
}

.video-player video {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--border-radius);
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-align: center;
    padding: 2rem;
    transition: var(--transition);
    cursor: pointer;
}

.video-overlay:hover {
    background: rgba(0, 0, 0, 0.8);
}

.video-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.video-overlay i {
    font-size: 4rem;
    margin-bottom: 1rem;
    display: block;
    opacity: 0.9;
    transition: var(--transition);
}

.video-overlay:hover i {
    transform: scale(1.1);
    color: var(--secondary-color);
}

.video-overlay h4 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.video-overlay p {
    margin-bottom: 0;
    opacity: 0.9;
    font-size: 1.1rem;
}



/* Host Section */
.host-section {
    padding: 6rem 0;
    background: var(--light-color);
}

/* Committee Section */
.committee-section {
    padding: 6rem 0;
    background: var(--white);
}

.anchor-section,
#news,
#sponsors {
    scroll-margin-top: 120px; /* height of navbar */
}

.committee-category {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    height: 100%;
    border: 2px solid transparent;
    position: relative;
}

.committee-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--tilburg-accent);
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.committee-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-heavy);
    border-color: var(--primary-color);
}

.category-title {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    font-weight: 600;
    text-align: center;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
}

.committee-member {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--light-color);
    border-radius: 8px;
    transition: var(--transition);
}

.committee-member:last-child {
    margin-bottom: 0;
}

.committee-member:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateX(5px);
}

.member-info h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    transition: var(--transition);
}

.committee-member:hover .member-info h4 {
    color: var(--white);
}

.member-affiliation {
    color: var(--secondary-color);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    transition: var(--transition);
}

.committee-member:hover .member-affiliation {
    color: rgba(255, 255, 255, 0.8);
}

.member-description {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 0;
    transition: var(--transition);
}

.committee-member:hover .member-description {
    color: rgba(255, 255, 255, 0.9);
}



.host-content {
    padding-right: 2rem;
}

.host-content p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #555;
}

.research-group {
    margin: 2rem 0;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    border-left: 4px solid var(--secondary-color);
}

.research-group h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.research-group p {
    margin-bottom: 1.5rem;
}

.research-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.research-link:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.research-areas {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.research-tag {
    background: var(--gradient-accent);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.research-tag:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

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

.host-feature {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--white);
    border-radius: var(--border-radius);
    transition: var(--transition);
    box-shadow: var(--shadow-light);
}

.host-feature:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-medium);
}

.host-feature i {
    font-size: 1.5rem;
    color: var(--secondary-color);
}

.host-logo-container {
    text-align: center;
}

.host-logo {
    margin-bottom: 2rem;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.host-logo:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.host-logo img {
    max-width: 250px;
    height: auto;
    border-radius: 8px;
}

.location-info {
    text-align: left;
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
}

.location-info h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.location-info h4 i {
    color: var(--secondary-color);
}

.location-info p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.location-details {
    display: grid;
    gap: 1rem;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.8rem;
    background: var(--light-color);
    border-radius: 8px;
    transition: var(--transition);
}

.detail-item:hover {
    background: var(--secondary-color);
    color: var(--white);
}

.detail-item i {
    color: var(--secondary-color);
    transition: var(--transition);
}

.detail-item:hover i {
    color: var(--white);
}

/* Language Section */
.language-section {
    padding: 6rem 0;
    background: var(--white);
}

.lang-card {
    text-align: center;
    padding: 2.5rem 1.5rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    height: 100%;
    border: 2px solid transparent;
}

.lang-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
    border-color: var(--primary-color);
}

.lang-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    transition: var(--transition);
}

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

.lang-icon i {
    font-size: 2rem;
    color: var(--white);
}

.lang-card h4 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.lang-card p {
    color: #666;
    line-height: 1.6;
}

/* News Section */
.news-section {
    padding: 6rem 0;
    background: var(--light-color);
}

.news-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    height: 100%;
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
}

.news-date {
    background: var(--gradient-primary);
    color: var(--white);
    text-align: center;
    padding: 1.5rem;
}

.date-day {
    display: block;
    font-size: 2rem;
    font-weight: 700;
}

.date-month {
    font-size: 1rem;
    opacity: 0.8;
}

.news-content {
    padding: 2rem;
}

.news-content h5 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.news-content p {
    color: #666;
    margin-bottom: 1.5rem;
}

.news-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.news-link:hover {
    color: var(--primary-color);
}

.news-link i {
    margin-left: 0.5rem;
    transition: var(--transition);
}

.news-link:hover i {
    transform: translateX(5px);
}

.news-details {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(0,0,0,0.1);
}

.news-details .detail-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
    font-size: 0.9rem;
}

.news-details .detail-item i {
    color: var(--primary-color);
    width: 16px;
}

/* Sponsors Section */
.sponsors-section {
    padding: 6rem 0;
    background: var(--white);
}

.sponsor-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    height: 100%;
    border: 3px solid transparent;
    position: relative;
}

.sponsor-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
}

.sponsor-level {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sponsor-placeholder {
    padding: 3rem 2rem 2rem;
    text-align: center;
}

.sponsor-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.platinum .sponsor-placeholder i {
    color: #e5e4e2;
}

.gold .sponsor-placeholder i {
    color: #ffd700;
}

.silver .sponsor-placeholder i {
    color: #c0c0c0;
}

.bronze .sponsor-placeholder i {
    color: #cd7f32;
}

.sponsor-placeholder h5 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.sponsor-placeholder p {
    color: #666;
    line-height: 1.6;
}

.sponsor-cta {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 3rem;
    border-radius: var(--border-radius);
    text-align: center;
}

.sponsor-cta h3 {
    margin-bottom: 1rem;
    color: var(--white);
}

.sponsor-cta .lead {
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Stats Section */
.stats-section {
    padding: 6rem 0;
    background: var(--gradient-primary);
    color: var(--white);
}

.stat-item {
    text-align: center;
    padding: 2rem;
}

.stat-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.8;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* CTA Section */
.cta-section {
    padding: 6rem 0;
    background: var(--gradient-cta);
    color: var(--white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.1)"/><circle cx="10" cy="60" r="0.5" fill="rgba(255,255,255,0.1)"/><circle cx="90" cy="40" r="0.5" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
    z-index: 1;
}

.cta-section .container {
    position: relative;
    z-index: 2;
}

.cta-section h2 {
    margin-bottom: 1rem;
    color: var(--white);
}

.cta-section .lead {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

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

/* Footer */
.footer {
    background: var(--dark-color);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer h5,
.footer h6 {
    margin-bottom: 1.5rem;
    color: var(--accent-color);
}

.host-info {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.host-info img {
    background: white;
    padding: 8px;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.eamt-logo-footer img {
    background: white;
    padding: 10px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: var(--transition);
}

.eamt-logo-footer img:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.footer-bottom-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom-logos img {
    background: white;
    padding: 8px;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: var(--transition);
}

.footer-bottom-logos img:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.host-info h6 {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    opacity: 0.8;
}

.footer p {
    opacity: 0.8;
    margin-bottom: 1rem;
}

.footer ul {
    list-style: none;
}

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

.footer ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer ul li a:hover {
    color: var(--accent-color);
}

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

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--accent-color);
    transform: translateY(-3px);
}

.footer hr {
    border-color: rgba(255, 255, 255, 0.1);
    margin: 2rem 0 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .eamt-logo {
        max-width: 150px;
    }
    
    .title-line {
        font-size: 2.5rem;
    }
    
    .title-subtitle {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content,
    .host-content {
        padding-right: 0;
        margin-bottom: 3rem;
    }
    
    .research-areas {
        justify-content: center;
    }
    
    .research-tag {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    /* Navigation improvements */
    .navbar {
        padding: 0.75rem 0;
    }
    
    .navbar-brand {
        font-size: 0.9rem;
    }
    
    .brand-text {
        font-size: 1.4rem;
    }
    
    .brand-subtitle {
        font-size: 0.7rem;
    }
    
    .navbar-nav {
        padding: 1rem 0;
    }
    
    .navbar-nav .nav-link {
        font-size: 1rem;
        padding: 0.75rem 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .dropdown-menu {
        position: static;
        float: none;
        width: 100%;
        background: rgba(0, 0, 0, 0.95);
        margin-top: 0.5rem;
    }
    
    .dropdown-item {
        padding: 0.75rem 1rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    /* Typography improvements */
    body {
        font-size: 16px;
        line-height: 1.6;
    }
    
    h1, .h1 {
        font-size: 2rem;
        line-height: 1.3;
    }
    
    h2, .h2 {
        font-size: 1.75rem;
        line-height: 1.3;
    }
    
    h3, .h3 {
        font-size: 1.5rem;
        line-height: 1.3;
    }
    
    h4, .h4 {
        font-size: 1.25rem;
        line-height: 1.3;
    }
    
    /* Button improvements */
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    /* Container optimizations */
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    /* Prevent horizontal overflow */
    body {
        overflow-x: hidden;
    }
    
    /* Grid improvements */
    .row {
        margin-left: -0.5rem;
        margin-right: -0.5rem;
    }
    
    [class*="col-"] {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }
    
    /* Hide floating elements on mobile to prevent overlapping */
    .language-elements,
    .llm-elements {
        display: none;
    }
}

@media (max-width: 576px) {
    .eamt-logo {
        max-width: 120px;
    }
    
    .navbar-brand {
        align-items: center;
    }
    
    .brand-text {
        font-size: 1.5rem;
    }
    
    /* Enhanced navigation for very small screens */
    .navbar-nav {
        padding: 0.5rem 0;
    }
    
    .navbar-nav .nav-link {
        font-size: 0.95rem;
        padding: 0.6rem 0;
    }
    
    /* Typography scaling for small screens */
    .title-line {
        font-size: 2rem;
        line-height: 1.2;
    }
    
    .title-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    /* Button stack improvements */
    .btn-group,
    .cta-buttons {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        margin: 0 auto 0.5rem auto;
    }
    
    /* Padding adjustments */
    .container {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }
    
    /* Card improvements */
    .card {
        margin-bottom: 1rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    /* Mobile typography */
    body {
        font-size: 15px;
        line-height: 1.5;
    }
    
    h1, .h1 { font-size: 1.75rem; }
    h2, .h2 { font-size: 1.5rem; }
    h3, .h3 { font-size: 1.3rem; }
    h4, .h4 { font-size: 1.15rem; }
    
    .hero-section {
        padding-top: 80px;
    }
    
    .about-section,
    .news-section,
    .stats-section,
    .cta-section,
    .teaser-section,
    .language-section,
    .sponsors-section,
    .host-section,
    .committee-section {
        padding: 4rem 0;
    }
    
    .video-player {
        margin: 0 1rem;
    }
    
    .video-overlay {
        padding: 1.5rem 1rem;
    }
    
    .video-overlay h4 {
        font-size: 1.3rem;
    }
    
    .video-overlay p {
        font-size: 1rem;
    }
    
    .sponsor-cta {
        padding: 2rem 1rem;
    }
    
    .committee-category {
        margin-bottom: 2rem;
    }
    
    .footer-bottom-logos {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .footer-bottom-logos img {
        margin-right: 0 !important;
    }
    
    .eamt-logo-footer img {
        max-width: 120px !important;
    }
}

/* Animation Classes */
[data-aos] {
    opacity: 0;
    transition-property: opacity, transform;
}

[data-aos].aos-animate {
    opacity: 1;
}

/* Host Section Redesign */
.host-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin: 3rem 0;
}

.highlight-item {
    text-align: center;
    padding: 2rem 1rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.highlight-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.highlight-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: block;
}

.highlight-item h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.highlight-item p {
    font-size: 0.9rem;
    color: var(--text-color);
    margin: 0;
    line-height: 1.4;
}

.venue-location {
    border-top: 1px solid var(--light-color);
    padding-top: 1.5rem;
}

.venue-location p {
    font-size: 0.9rem;
    margin: 0;
}

@media (max-width: 768px) {
    .host-highlights {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .highlight-item {
        padding: 1.5rem 1rem;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--light-color);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Calls for Papers Page Styles */
.page-header {
    padding: 2rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    margin-bottom: 2rem;
    border-radius: var(--border-radius);
    margin-top: 120px; /* Account for fixed navbar */
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: white;
}

.page-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    margin: 0;
}

.call-badge {
    margin-top: 1rem;
}

.call-badge .badge {
    background: rgba(255,255,255,0.2);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 2px solid rgba(255,255,255,0.3);
}

.content-section {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    margin-bottom: 2rem;
}

.intro-section {
    border-bottom: 2px solid var(--light-color);
    padding-bottom: 2rem;
}

.submission-cta {
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    color: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    margin-top: 2rem;
    box-shadow: var(--shadow-medium);
}

.submission-cta h3 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.submission-cta p {
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.submission-cta .btn {
    background: rgba(255,255,255,0.2);
    border: 2px solid rgba(255,255,255,0.3);
    color: white;
    padding: 0.75rem 2rem;
    font-weight: 600;
    transition: var(--transition);
}

.submission-cta .btn:hover {
    background: rgba(255,255,255,0.3);
    border-color: rgba(255,255,255,0.5);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
}

.submission-cta .btn i {
    margin-right: 0.5rem;
}

.toc-section {
    background: var(--light-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 2px solid var(--accent-color);
}

.toc-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.toc-item {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.toc-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.toc-link {
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

.toc-link:hover {
    color: var(--accent-color);
    text-decoration: none;
}

.toc-link i {
    margin-right: 0.75rem;
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.toc-link span {
    font-weight: 500;
}

.category-card {
    background: var(--light-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-color);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-light);
}

.category-title {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 0.5rem;
}

.category-description {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
}

.topic-list {
    list-style: none;
    padding-left: 0;
    margin-bottom: 1.5rem;
}

.topic-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.topic-list li:before {
    content: "•";
    color: var(--accent-color);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.topic-list li:last-child {
    border-bottom: none;
}

.submission-info {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 2px solid var(--accent-color);
    margin-top: 1.5rem;
}

.submission-info p {
    margin: 0;
    font-weight: 500;
    color: var(--primary-color);
}

.submission-info a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 1px solid var(--accent-color);
    transition: var(--transition);
}

.submission-info a:hover {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    text-decoration: none;
}

.templates-section {
    background: var(--light-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 2px solid var(--secondary-color);
}

.template-links {
    margin-top: 1.5rem;
}

.template-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    height: 100%;
}

.template-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.template-card h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.template-card p {
    color: var(--text-color);
    margin: 0 0 1rem 0;
    font-size: 0.9rem;
}

.template-card .btn {
    margin-top: 0.5rem;
    font-size: 0.85rem;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.template-card .btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-light);
}

.deadlines-section {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 2rem;
    border-radius: var(--border-radius);
}

.deadlines-section .section-title {
    color: white;
    margin-bottom: 1.5rem;
}

.deadline-table {
    background: rgba(255,255,255,0.1);
    border-radius: var(--border-radius);
    padding: 1.5rem;
}

.deadline-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.2);
}

.deadline-row:last-child {
    border-bottom: none;
}

.deadline-label {
    font-weight: 500;
    flex: 1;
}

.deadline-date {
    font-weight: 700;
    background: rgba(255,255,255,0.2);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    min-width: 120px;
    text-align: center;
}

.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    margin: 1rem 0;
    border-left: 4px solid;
}

.alert-info {
    background-color: #d1ecf1;
    border-color: #17a2b8;
    color: #0c5460;
}

.alert-warning {
    background-color: #fff3cd;
    border-color: #ffc107;
    color: #856404;
}

.alert a {
    color: inherit;
    text-decoration: underline;
}

@media (max-width: 768px) {
    .page-title {
        font-size: 2rem;
    }
    
    .category-card {
        padding: 1.5rem;
    }
    
    .deadline-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .deadline-date {
        min-width: auto;
        width: 100%;
    }
    
    .content-section {
        padding: 1.5rem;
    }
    
    .templates-section {
        padding: 1.5rem;
    }
    
    .deadlines-section {
        padding: 1.5rem;
    }
    
    .toc-section {
        padding: 1.5rem;
    }
    
    .toc-container {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .toc-link {
        padding: 0.75rem 1rem;
    }
    
    .toc-link i {
        font-size: 1rem;
        margin-right: 0.5rem;
    }
}

/* Performance optimizations for mobile */
@media (max-width: 480px) {
    /* Extra small mobile devices */
    body {
        font-size: 14px;
    }
    
    .container {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }
    
    .title-line {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .btn-lg {
        padding: 0.6rem 1rem;
        font-size: 0.95rem;
    }
    
    .navbar-nav .nav-link {
        font-size: 0.9rem;
        padding: 0.5rem 0;
    }
    
    /* Reduce padding and margins for very small screens */
    .card-body {
        padding: 0.75rem;
    }
    
    .hero-section {
        padding-top: 70px;
    }
}

/* High DPI displays and performance */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .navbar-toggler-icon {
        background-size: 1.5em 1.5em;
    }
}

/* Touch improvements */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 44px;
    }
    
    .nav-link {
        min-height: 44px;
        padding: 0.75rem;
    }
    
    .dropdown-item {
        min-height: 44px;
        display: flex;
        align-items: center;
    }
}

/* Reduced motion for accessibility and performance */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Venue link styling */
.venue-link {
    color: inherit !important;
    text-decoration: none !important;
    transition: all 0.3s ease;
    cursor: pointer;
}

.venue-link:link,
.venue-link:visited {
    color: inherit !important;
}

.venue-link:hover,
.venue-link:focus,
.venue-link:active {
    color: var(--tilburg-accent) !important;
    text-decoration: underline !important;
}