:root {
    --primary: #0082ff;
    --primary-rgb: 0, 130, 255;
    --primary-dark: #0066cc;
    --primary-darker: #004d99;
    --secondary: #00d4aa;
    --accent: #ff6b35;
    --dark: #0a1628;
    --darker: #050d18;
    --light: #f0f4f8;
    --white: #ffffff;
    --gray-100: #f8fafc;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --text: #1e293b;
    --text-muted: #64748b;
    --gradient-1: linear-gradient(135deg, #0082ff 0%, #00d4aa 100%);
    --gradient-2: linear-gradient(135deg, #0a1628 0%, #1a365d 100%);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --shadow-glow: 0 0 40px rgba(0, 130, 255, 0.3);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--gray-100);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    line-height: 1.3;
    color: var(--dark);
}

a { text-decoration: none; color: var(--primary); transition: all 0.3s ease; }
a:hover { color: var(--primary-dark); }

.btn {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--gradient-1);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 130, 255, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 130, 255, 0.5);
    color: var(--white);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.3);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.5);
    color: var(--white);
    transform: translateY(-3px);
}

/* Top Bar */
.top-bar {
    background: var(--darker);
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.top-bar-info {
    display: flex;
    gap: 30px;
    font-size: 14px;
    color: rgba(255,255,255,0.7);
}

.top-bar-info span {
    display: flex;
    align-items: center;
    gap: 8px;
}

.top-bar-info i { color: var(--primary); }

.top-bar-links {
    display: flex;
    gap: 25px;
}

.top-bar-links a {
    color: rgba(255,255,255,0.7);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.top-bar-links a:hover { color: var(--primary); }

/* Header */
.header {
    background: var(--dark);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.header.scrolled { box-shadow: 0 4px 30px rgba(0,0,0,0.3); }

.navbar { padding: 0; }

.navbar-brand {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 28px;
    font-weight: 700;
    color: var(--white) !important;
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 50px;
    width: auto;
}



.navbar-nav { gap: 5px; }

.navbar-nav .nav-link {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 500;
    color: rgba(255,255,255,0.8) !important;
    padding: 28px 18px !important;
    font-size: 15px;
    position: relative;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 20px;
    left: 18px;
    right: 18px;
    height: 2px;
    background: var(--gradient-1);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--white) !important;
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    transform: scaleX(1);
}

.dropdown-menu {
    background: var(--white);
    border: none;
    border-radius: 12px;
    box-shadow: var(--shadow-xl);
    padding: 12px;
    margin-top: 0;
    min-width: 220px;
}

.dropdown-item {
    padding: 12px 16px;
    border-radius: 8px;
    font-weight: 500;
    color: var(--text);
    transition: all 0.2s ease;
}

.dropdown-item:hover {
    background: var(--gradient-1);
    color: var(--white);
    transform: translateX(5px);
}

.nav-cta .btn { padding: 12px 24px; font-size: 14px; }

.navbar-toggler { border: none; padding: 10px; }
.navbar-toggler:focus { box-shadow: none; }

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Hero Section (Homepage) */
.hero {
    background: var(--gradient-2);
    min-height: 90vh;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(90deg, rgba(0,130,255,0.03) 1px, transparent 1px),
        linear-gradient(rgba(0,130,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(0, 130, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 212, 170, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 40% 40%, rgba(255, 107, 53, 0.05) 0%, transparent 30%);
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 14px;
    color: rgba(255,255,255,0.9);
    margin-bottom: 30px;
    animation: fadeInUp 0.6s ease;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 25px;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.hero h1 span {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: 30px;
    max-width: 600px;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 25px;
    margin-bottom: 40px;
    animation: fadeInUp 0.6s ease 0.3s both;
}

.hero-meta-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255,255,255,0.8);
}

.hero-meta-item .icon-box {
    width: 45px;
    height: 45px;
    background: rgba(0, 130, 255, 0.2);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    animation: fadeInUp 0.6s ease 0.4s both;
}

.hero-stats {
    display: flex;
    gap: 50px;
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.hero-stat h3 {
    font-size: 2.5rem;
    color: var(--white);
    margin-bottom: 5px;
}

.hero-stat p {
    color: rgba(255,255,255,0.6);
    font-size: 14px;
}

.floating-shapes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 1;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--primary);
    top: -100px;
    right: -100px;
    animation: float 20s ease-in-out infinite;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: var(--secondary);
    bottom: -50px;
    left: -50px;
    animation: float 25s ease-in-out infinite reverse;
}

.shape-3 {
    width: 200px;
    height: 200px;
    background: var(--accent);
    top: 50%;
    right: 20%;
    animation: spin 30s linear infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(10deg); }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Page Header (Inner Pages) */
.page-header {
    background: var(--gradient-2);
    padding: 80px 0 60px;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 130, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 212, 170, 0.1) 0%, transparent 40%);
}

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

.page-header h1 {
    font-size: 2.5rem;
    color: var(--white);
    margin-bottom: 15px;
}

.breadcrumb {
    background: none;
    padding: 0;
    margin: 0;
}

.breadcrumb-item {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
}

.breadcrumb-item a { color: rgba(255,255,255,0.6); }
.breadcrumb-item a:hover { color: var(--primary); }
.breadcrumb-item.active { color: var(--primary); }
.breadcrumb-item + .breadcrumb-item::before { content: "›"; color: rgba(255,255,255,0.4); }

/* Countdown Section */
.countdown-section {
    margin-top: -60px;
    position: relative;
    z-index: 10;
}

.countdown-card {
    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    padding: 30px 40px;
}

.countdown-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.countdown-label {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    color: var(--dark);
    font-size: 18px;
}

.countdown-items {
    display: flex;
    gap: 15px;
}

.countdown-item {
    background: var(--gradient-2);
    border-radius: 12px;
    padding: 15px 20px;
    text-align: center;
    min-width: 90px;
}

.countdown-item .number {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1;
}

.countdown-item .label {
    font-size: 12px;
    color: rgba(255,255,255,0.6);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 5px;
}

/* Topics Section */
.topics-section {
    padding: 100px 0;
    background: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-badge {
    display: inline-block;
    background: rgba(0, 130, 255, 0.1);
    color: var(--primary);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.topic-card {
    background: var(--white);
    border-radius: 20px;
    padding: 35px;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.topic-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-1);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.topic-card:hover::before {
    transform: scaleX(1);
}

.topic-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.topic-icon i {
    font-size: 28px;
    color: var(--white);
}

.topic-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.topic-card p {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.6;
}

/* Speakers Section */
.speakers-section {
    padding: 100px 0;
    background: var(--gradient-2);
    position: relative;
    overflow: hidden;
}

.speakers-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 90%, rgba(0, 130, 255, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 90% 10%, rgba(0, 212, 170, 0.1) 0%, transparent 40%);
}

.speakers-section .section-header h2,
.speakers-section .section-header p,
.speakers-section .section-badge {
    color: var(--white);
}

.speakers-section .section-badge {
    background: rgba(255,255,255,0.1);
}

.speakers-section .section-header p {
    color: rgba(255,255,255,0.7);
}

.speakers-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    position: relative;
    z-index: 2;
}

.speaker-card {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.4s ease;
}

.speaker-card:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-10px);
    box-shadow: var(--shadow-glow);
}

.speaker-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin: 0 auto 25px;
    background: var(--gradient-1);
    padding: 4px;
}

.speaker-image img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.speaker-image-placeholder {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--dark);
    display: flex;
    align-items: center;
    justify-content: center;
}

.speaker-image-placeholder i {
    font-size: 50px;
    color: var(--gray-500);
}

.speaker-card h3 {
    color: var(--white);
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.speaker-card .role {
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 5px;
}

.speaker-card .affiliation {
    color: rgba(255,255,255,0.6);
    font-size: 14px;
}

/* Timeline Section */
.timeline-section {
    padding: 100px 0;
    background: var(--gray-100);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 100%;
    background: var(--gradient-1);
    border-radius: 3px;
}

.timeline-item {
    display: flex;
    justify-content: flex-end;
    padding-right: 50%;
    position: relative;
    margin-bottom: 50px;
}

.timeline-item:nth-child(even) {
    justify-content: flex-start;
    padding-right: 0;
    padding-left: 50%;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--gradient-1);
    border-radius: 50%;
    border: 4px solid var(--white);
    box-shadow: var(--shadow-md);
    z-index: 1;
}

.timeline-content {
    background: var(--white);
    padding: 25px 30px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    max-width: 350px;
    margin-right: 30px;
    transition: all 0.3s ease;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-right: 0;
    margin-left: 30px;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.timeline-date {
    display: inline-block;
    background: var(--gradient-1);
    color: var(--white);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 15px;
}

.timeline-content h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.timeline-content p {
    color: var(--text-muted);
    font-size: 14px;
    margin: 0;
}

/* CTA Section */
.cta-section {
    background: var(--gradient-1);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 0% 100%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 100% 0%, rgba(0,0,0,0.1) 0%, transparent 50%);
}

.cta-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    color: var(--white);
    margin-bottom: 20px;
}

.cta-content p {
    color: rgba(255,255,255,0.9);
    font-size: 1.2rem;
    margin-bottom: 35px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn-dark {
    background: var(--dark);
    color: var(--white);
}

.btn-dark:hover {
    background: var(--darker);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* Main Content (Inner Pages) */
.main-content { padding: 60px 0; }

.content-card {
    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    padding: 40px;
}

.content-card h2 {
    font-size: 1.75rem;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--gray-200);
}

.content-card h3 {
    font-size: 1.35rem;
    margin-top: 30px;
    margin-bottom: 15px;
    color: var(--primary-dark);
}

.content-card h4 {
    font-size: 1.15rem;
    margin-top: 25px;
    margin-bottom: 12px;
}

.content-card p {
    margin-bottom: 18px;
    color: var(--gray-700);
}

.content-card ul, .content-card ol {
    margin-bottom: 20px;
    padding-left: 25px;
}

.content-card li {
    margin-bottom: 10px;
    color: var(--gray-700);
}

.content-card a { font-weight: 500; }
.content-card strong { color: var(--dark); }
.highlight { color: var(--primary); font-weight: 600; }

.info-box {
    background: linear-gradient(135deg, rgba(0,130,255,0.08) 0%, rgba(0,212,170,0.05) 100%);
    border-left: 4px solid var(--primary);
    padding: 20px 25px;
    border-radius: 0 12px 12px 0;
    margin: 25px 0;
}

.warning-box {
    background: rgba(255, 107, 53, 0.08);
    border-left: 4px solid var(--accent);
    padding: 20px 25px;
    border-radius: 0 12px 12px 0;
    margin: 25px 0;
}

.warning-box p { margin: 0; font-size: 14px; }

/* Sidebar */
.sidebar { position: sticky; top: 100px; }

.sidebar-card {
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    padding: 30px;
    margin-bottom: 30px;
}

.sidebar-card h5 {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--dark);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary);
}

.sidebar-nav {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-nav li { margin-bottom: 8px; }

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    color: var(--text);
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: var(--gradient-1);
    color: var(--white);
    transform: translateX(5px);
}

.sidebar-nav a i { font-size: 12px; opacity: 0.7; }

/* Timeline List (used in content pages like deadlines) */
.timeline-list {
    list-style: none;
    padding: 0;
    margin: 25px 0;
}

.timeline-list li {
    display: flex;
    align-items: flex-start;
    gap: 25px;
    padding: 25px;
    margin-bottom: 15px;
    background: var(--gray-100);
    border-radius: 12px;
    border-left: 4px solid var(--primary);
    transition: all 0.3s ease;
}

.timeline-list li:hover {
    background: var(--white);
    box-shadow: var(--shadow-md);
    transform: translateX(5px);
}

.timeline-list .date {
    min-width: 160px;
    font-weight: 700;
    color: var(--primary);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1rem;
    flex-shrink: 0;
}

.timeline-list .event {
    color: var(--gray-700);
    font-size: 1rem;
    line-height: 1.5;
}

@media (max-width: 767px) {
    .timeline-list li {
        flex-direction: column;
        gap: 8px;
    }
    .timeline-list .date {
        min-width: auto;
    }
}

/* Styled Table */
.styled-table {
    width: 100%;
    border-collapse: collapse;
    margin: 25px 0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.styled-table thead {
    background: var(--gradient-1);
    color: var(--white);
}

.styled-table th, .styled-table td { padding: 15px 20px; text-align: left; }
.styled-table tbody tr { border-bottom: 1px solid var(--gray-200); }
.styled-table tbody tr:nth-child(even) { background: var(--gray-100); }
.styled-table tbody tr:hover { background: rgba(0, 130, 255, 0.05); }

/* Committee List */
.committee-list {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 15px;
}

.committee-list li {
    background: var(--gray-100);
    padding: 15px 20px;
    border-radius: 10px;
    border-left: 3px solid var(--primary);
}

.committee-list strong {
    display: block;
    color: var(--dark);
    margin-bottom: 3px;
}

.committee-list span {
    font-size: 14px;
    color: var(--text-muted);
}

/* Archive List */
.archive-list {
    list-style: none;
    padding: 0;
}

.archive-list li { margin-bottom: 15px; }

.archive-list a {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--gray-100);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.archive-list a:hover {
    background: var(--gradient-1);
    color: var(--white);
    transform: translateX(10px);
}

.archive-list a i { font-size: 24px; }

/* Contact Grid */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.contact-card {
    background: var(--gray-100);
    padding: 30px;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.contact-card i {
    font-size: 40px;
    color: var(--primary);
    margin-bottom: 20px;
}

.contact-card h4 { margin-bottom: 15px; }

/* Footer */
.footer {
    background: var(--darker);
    color: rgba(255,255,255,0.7);
    padding: 80px 0 0;
}

.footer h5 {
    font-family: 'Space Grotesk', sans-serif;
    color: var(--white);
    font-size: 18px;
    margin-bottom: 25px;
}

.footer-brand { margin-bottom: 25px; }

.footer-brand .navbar-brand {
    font-size: 24px;
    margin-bottom: 20px;
    display: inline-flex;
}

.footer-brand p {
    color: rgba(255,255,255,0.6);
    line-height: 1.8;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li { margin-bottom: 12px; }

.footer-links a {
    color: rgba(255,255,255,0.6);
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.footer-links a:hover {
    color: var(--primary);
    transform: translateX(5px);
}

.footer-contact li {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.footer-contact i {
    color: var(--primary);
    font-size: 18px;
    margin-top: 3px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 25px 0;
    margin-top: 60px;
}

.footer-bottom p { margin: 0; font-size: 14px; }

.footer-social {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

.footer-social a {
    width: 45px;
    height: 45px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: var(--gradient-1);
    border-color: transparent;
    transform: translateY(-3px);
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 20px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: var(--shadow-md);
}

.back-to-top:hover { transform: translateY(-5px); color: var(--white); }
.back-to-top.show { opacity: 1; visibility: visible; }

/* Responsive */
@media (max-width: 1199px) {
    .topics-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 991px) {
    .top-bar { display: none; }
    .navbar-collapse {
        background: var(--dark);
        padding: 20px;
        margin-top: 15px;
        border-radius: 12px;
    }
    .navbar-nav .nav-link { padding: 15px !important; }
    .navbar-nav .nav-link::after { display: none; }
    
    .hero { min-height: auto; padding: 80px 0; }
    .hero-stats { display: none; }
    
    .page-header { padding: 60px 0 40px; }
    .page-header h1 { font-size: 2rem; }
    
    .topics-grid { grid-template-columns: repeat(2, 1fr); }
    .speakers-grid { grid-template-columns: repeat(2, 1fr); }
    
    .timeline::before { left: 20px; }
    .timeline-item { padding-right: 0; padding-left: 60px; justify-content: flex-start; }
    .timeline-item:nth-child(even) { padding-left: 60px; }
    .timeline-item::before { left: 20px; }
    .timeline-content { margin-right: 0; margin-left: 0; max-width: 100%; }
    .timeline-item:nth-child(even) .timeline-content { margin-left: 0; }
    
    .content-card { padding: 25px; }
    .sidebar { position: static; margin-top: 40px; }
}

@media (max-width: 767px) {
    .hero h1 { font-size: 2rem; }
    .hero-meta { flex-direction: column; gap: 15px; }
    
    .section-header h2 { font-size: 2rem; }
    .topics-grid { grid-template-columns: 1fr; }
    .speakers-grid { grid-template-columns: 1fr; }
    
    .countdown-wrapper { flex-direction: column; text-align: center; }
    .countdown-items { justify-content: center; }
    
    .main-content { padding: 40px 0; }
    .content-card { padding: 20px; }
    .committee-list { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    
    .timeline-list li { flex-direction: column; gap: 8px; }
    .timeline-date { min-width: auto; }
    
    .footer-social { justify-content: center; margin-top: 20px; }
    .cta-content h2 { font-size: 2rem; }
}