:root {
    /* Light mode colors */
    --primary-color: #4285F4;
    --secondary-color: #34A853;
    --accent-color: #FBBC04;
    --success-color: #34A853;
    --warning-color: #FBBC04;
    --error-color: #EA4335;
    
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8F9FA;
    --bg-accent: #F1F3F4;
    --text-primary: #202124;
    --text-secondary: #5F6368;
    --text-muted: #9AA0A6;
    --border-color: #DADCE0;
    --shadow-color: rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-family: 'Inter', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

[data-theme="dark"] {
    --bg-primary: #121212;
    --bg-secondary: #1E1E1E;
    --bg-accent: #2D2D2D;
    --text-primary: #E8EAED;
    --text-secondary: #9AA0A6;
    --text-muted: #5F6368;
    --border-color: #3C4043;
    --shadow-color: rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-base), color var(--transition-base);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.loading-screen.fade-out {
    opacity: 0;
    visibility: hidden;
}

.loading-container {
    text-align: center;
    color: white;
}

.loading-logo .acm-logo {
    margin-bottom: var(--space-6);
}

.diamond-shape {
    width: 80px;
    height: 80px;
    background: white;
    transform: rotate(45deg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    border-radius: 8px;
    animation: pulse 2s ease-in-out infinite;
}

.diamond-shape span {
    transform: rotate(-45deg);
    font-weight: 800;
    font-size: var(--font-size-lg);
    color: var(--primary-color);
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    margin: 0 auto var(--space-6);
    animation: spin 1s linear infinite;
}

.loading-text {
    font-size: var(--font-size-xl);
    font-weight: 500;
    margin-bottom: var(--space-8);
}

.loading-progress {
    width: 200px;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    margin: 0 auto;
    overflow: hidden;
}

.loading-bar {
    height: 100%;
    background: white;
    border-radius: 2px;
    animation: loading-progress 3s ease-in-out;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { transform: rotate(45deg) scale(1); }
    50% { transform: rotate(45deg) scale(1.1); }
}

@keyframes loading-progress {
    0% { width: 0%; }
    50% { width: 70%; }
    100% { width: 100%; }
}

/* Main Content */
.main-content {
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.main-content.show {
    opacity: 1;
}

/* Navigation */
.navbar {
    position: relative;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all var(--transition-base);
}

[data-theme="dark"] .navbar {
    background: rgba(18, 18, 18, 0.95);
}

.header-image {
    width: 100%;
    height: 50%;
}

.header-image img {
    width: 100%;
    height: 50%;
    display: block; /* Removes any default spacing below the image */
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.brand-logo .diamond-shape {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    transform: rotate(45deg);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

.brand-logo .diamond-shape span {
    transform: rotate(-45deg);
    font-weight: 800;
    font-size: var(--font-size-sm);
    color: white;
}

.brand-text h1 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.brand-text p {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: color var(--transition-fast);
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-fast);
}

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

.join-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: var(--space-2) var(--space-4);
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.join-btn:hover {
    background: #3367D6;
    transform: translateY(-1px);
}

.theme-toggle {
    background: none;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-primary);
}

.theme-toggle:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition-fast);
}

/* Preview Badge */
.preview-badge {
    position: fixed;
    top: 100px;
    left: var(--space-4);
    background: var(--bg-accent);
    color: var(--text-secondary);
    padding: var(--space-2) var(--space-3);
    border-radius: 6px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    z-index: 999;
    border: 1px solid var(--border-color);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.hero-left {
    max-width: 600px;
}

.organization-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: var(--bg-accent);
    color: var(--text-secondary);
    padding: var(--space-2) var(--space-3);
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--space-6);
}

.organization-tag i {
    color: var(--primary-color);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}

.background-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0; /* All images are initially hidden */
    transition: opacity 1s ease-in-out; /* Add a smooth fade transition */
}

/* This class will make an image visible */
.background-image.active {
    opacity: 1;
}

.hero-section {
    position: relative; /* Make sure this is relative for the overlay to work */
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 80vh;
    padding: var(--space-10);
    color: var(--text-secondary); /* Text color, e.g., white or light gray */
    
    /* Add the overlay before the content */
    z-index: 1; /* Make sure content is above the overlay */
}

/* This is the new CSS for the overlay */
.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4); /* Semi-transparent black */
    z-index: 0; /* Place overlay below the content */
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 800; 
    line-height: 1.1;
    text-transform: uppercase; 
    letter-spacing: 2px; 
    color: #FFD700; 
    text-shadow: 0 4px 10px rgba(0, 0, 0, 0.7); 
}

.hero-description {
    font-size: var(--font-size-xl);
    line-height: 1.7; 
    max-width: 600px; 
    margin: var(--space-4) auto var(--space-8); 
    color: lch(86.27% 85.23 105.68); 
    text-shadow: 0 2px 8px #f3e709; 
}

.hero-buttons {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
}

.btn {
    padding: var(--space-3) var(--space-6);
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #3367D6);
    color: white;
    /* Add a subtle inset shadow to make it pop */
    box-shadow: inset 0 -3px 0 rgba(0,0,0,0.2);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #3367D6, var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--shadow-color);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--text-primary);
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--shadow-color);
}


.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
    margin-top: var(--space-8);
}

.stat-item {
    text-align: left;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.stat-icon i {
    color: var(--primary-color); /* Make the icon color consistent */
    transition: transform 0.2s ease;
}

.stat-item:hover .stat-icon i {
    transform: scale(1.1);
}

.stat-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-3);
    color: var(--text-secondary);
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

.hero-right {
    position: relative;
}

@keyframes float {
    0% { transform: translateY(0) rotate(2deg); }
    50% { transform: translateY(-5px) rotate(2deg); }
    100% { transform: translateY(0) rotate(2deg); }
}

.hero-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px var(--shadow-color);
    transform: rotate(2deg);
    transition: transform var(--transition-base);
    animation: float 4s ease-in-out infinite;
}

.hero-image:hover {
    animation-play-state: paused;
    transform: rotate(0deg) scale(1.02);
}

.hero-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}



/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-header h2 {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.section-header p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

/* About Section */
.about-section {
    padding: var(--space-24) 0;
    background: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);
}

.about-card {
    background: var(--bg-primary);
    padding: var(--space-8);
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px var(--shadow-color);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.about-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px var(--shadow-color);
}

.card-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-6);
    font-size: var(--font-size-2xl);
    color: white;
}

.about-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-4);
}

.about-container {
    display: flex;
    flex-wrap: wrap; 
    gap: var(--space-8);
    align-items: center;
}

.about-text-content {
    flex: 1;
    min-width: 300px; 
}

.about-image-container {
    flex: 1;
    position: relative;
    width: 100%;
    height: 400px; 
    overflow: hidden;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Styling for the slideshow images */
.about-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover; 
    opacity: 0; 
    transition: opacity 1s ease-in-out; 
}

.about-slide.active {
    opacity: 1; 
}

/* Events Section */
.events-section {
    padding: var(--space-24) 0;
}

.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-6);
}

.event-card {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: var(--space-6);
    display: flex;
    gap: var(--space-4);
    box-shadow: 0 4px 20px var(--shadow-color);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.event-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--shadow-color);
}

.event-date {
    background: var(--primary-color);
    color: white;
    border-radius: 12px;
    padding: var(--space-4);
    text-align: center;
    min-width: 80px;
    height: fit-content;
}

.event-date .day {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    line-height: 1;
}

.event-date .month {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-transform: uppercase;
}

.event-content h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.event-content p {
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
}

.event-meta {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.event-meta span {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.event-meta i {
    color: var(--primary-color);
}

/* : Organizing Committee Section - Enhanced Mobile Image Display */
        .organizing-committee-container {
            margin-top: 3rem;
            width: 100%;
            min-height: auto;
            background: var(--bg-secondary);
            padding: 2rem 0;
        }

        .committee-section {
            margin-bottom: 4rem;
            width: 100%;
            padding: 0 1rem;
        }

        .committee-section-title {
            text-align: center;
            font-family: 'Playfair Display', serif;
            font-size: 2rem;
            font-weight: 600;
            margin-bottom: 2rem;
            color: var(--primary-color);
            position: relative;
            opacity: 1;
            visibility: visible;
        }

        .committee-section-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background: var(--gradient-primary);
            border-radius: 2px;
        }

        .patrons-section .committee-section-title::after {
            background: var(--gradient-primary);
        }

        .conference-chair-section .committee-section-title::after {
            background: var(--gradient-purple);
        }

        .convener-section .committee-section-title::after {
            background: var(--gradient-tertiary);
        }

        .coordinators-section .committee-section-title::after {
            background: var(--gradient-secondary);
        }

        .technical-section .committee-section-title::after {
            background: var(--gradient-pink);
        }

        /* : Speakers Grid - Optimized for All Devices */
        .speakers-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            justify-content: center;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
            opacity: 1;
            visibility: visible;
            transform: none;
        }

        /* : Speaker Card with Proper Image Display */
        .speaker-card {
            background: var(--bg-primary);
            backdrop-filter: blur(25px);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-glass);
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            position: relative;
            width: 100%;
            max-width: 320px;
            margin: 0 auto;
            opacity: 1;
            visibility: visible;
            transform: none;
            will-change: transform;
        }

        [data-theme="dark"] .speaker-card {
            background: rgba(30, 41, 59, 0.95);
            border: 1px solid rgba(51, 65, 85, 0.3);
        }

        .speaker-card:hover {
            transform: translateY(-10px) scale(1.02);
            box-shadow: var(--shadow-gold);
        }

        /*  Speaker Image Container - Critical Fix for Mobile */
        .speaker-image {
            height: 220px;
            width: 100%;
            background: white;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /*  Speaker Image - Proper Display on All Devices */
        .speaker-image img {
            width: 100%;
            height: 100%;
            object-fit: fit;
            object-position: center;
            transition: transform 0.3s ease;
            display: block;
            border-radius: 50%;
            background: #f0f0f0;
        }

        /* Fallback for missing images */
        .speaker-image img[src=""], 
        .speaker-image img:not([src]), 
        .speaker-image img[src="photos/demo.jpg"] {
            background: var(--gradient-primary);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .speaker-image img[src="photos/demo.jpg"]::after {
            content: "Photo Coming Soon";
            color: white;
            font-size: 14px;
            text-align: center;
        }

        .speaker-card:hover .speaker-image img {
            transform: scale(1.05);
        }

        .speaker-image::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60%;
            background: linear-gradient(transparent, rgba(0,0,0,0.4));
            pointer-events: none;
        }

        .speaker-content {
            padding: 1.5rem;
            position: relative;
            background: inherit;
            text-align: center;
        }

        .speaker-content::before {
            content: '';
            position: absolute;
            top: -3px;
            left: 1.5rem;
            right: 1.5rem;
            height: 4px;
            background: var(--gradient-rainbow);
        }

        .speaker-card h4 {
            font-family: 'Playfair Display', serif;
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
            line-height: 1.3;
            text-align: center;
        }

        .speaker-card .position {
            color: var(--primary-color);
            font-weight: 600;
            margin-bottom: 0.3rem;
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            line-height: 1.2;
            text-align: center;
        }

        .speaker-card .affiliation {
            color: var(--accent-color);
            font-weight: 500;
            font-size: 0.8rem;
            line-height: 1.2;
        }

/* Leadership Section */
.leadership-section {
    padding: var(--space-24) 0;
    background: var(--bg-secondary);
}

.leadership-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-8);
}

.leader-card {
    background: var(--bg-primary);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px var(--shadow-color);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.leader-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px var(--shadow-color);
}

.leader-image {
    height: 250px;
    overflow: hidden;
}

.leader-image img {
    width: 100%;
    height: 100%;
    object-fit: flex;
    transition: transform var(--transition-base);
}

.leader-card:hover .leader-image img {
    transform: scale(1.1);
}

.leader-info {
    padding: var(--space-2);
    text-align: center;
}

.leader-info h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.leader-title {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: var(--space-1);
}

.leader-year {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* Contact Section */
.contact-section {
    padding: var(--space-24) 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: start;
}

.contact-info h2 {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.contact-info p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
}

.contact-details {
    margin-bottom: var(--space-8);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.contact-item i {
    color: var(--primary-color);
    width: 20px;
}

.social-links {
    display: flex;
    gap: var(--space-3);
}

.social-links a {
    width: 48px;
    height: 48px;
    background: var(--bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.contact-form {
    background: var(--bg-secondary);
    padding: var(--space-8);
    border-radius: 16px;
}

.form-group {
    margin-bottom: var(--space-4);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-3);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    padding: var(--space-16) 0 var(--space-8);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-16);
    margin-bottom: var(--space-8);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.footer-brand .brand-text h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-1);
}

.footer-brand .brand-text p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
}

.footer-section h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-4);
}

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

.footer-section ul li {
    margin-bottom: var(--space-2);
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--space-8);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
        text-align: center;
    }
    
    .hero-left {
        order: 2;
    }
    
    .hero-right {
        order: 1;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--bg-primary);
        flex-direction: column;
        justify-content: flex-start;
        padding-top: var(--space-8);
        transition: left var(--transition-base);
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .events-grid {
        grid-template-columns: 1fr;
    }
    
    .leadership-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .preview-badge {
        position: relative;
        top: auto;
        left: auto;
        margin: var(--space-4) auto;
        display: inline-block;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-3);
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-header h2 {
        font-size: var(--font-size-2xl);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
    
    .stat-item {
        text-align: center;
    }
    
    .about-grid,
    .events-grid,
    .leadership-grid {
        grid-template-columns: 1fr;
    }
    
    .brand-text h1 {
        font-size: var(--font-size-lg);
    }
    
    .brand-text p {
        font-size: 0.6rem;
    }
}