/* ========================================
   PyData Indore - Custom Styles
   A bold, modern design with Indian-inspired warmth
   ======================================== */

/* CSS Variables */
:root {
    /* Primary Colors - Modern teal with vibrant accents */
    --color-primary: #06b6d4;
    --color-primary-dark: #0891b2;
    --color-primary-light: #22d3ee;
    
    /* Accent Colors - Vibrant orange/amber */
    --color-accent: #f97316;
    --color-accent-light: #fb923c;
    --color-accent-dark: #ea580c;
    
    /* Neutrals */
    --color-dark: #0f172a;
    --color-dark-soft: #1e293b;
    --color-gray-900: #111827;
    --color-gray-800: #1f2937;
    --color-gray-700: #374151;
    --color-gray-600: #4b5563;
    --color-gray-500: #6b7280;
    --color-gray-400: #9ca3af;
    --color-gray-300: #d1d5db;
    --color-gray-200: #e5e7eb;
    --color-gray-100: #f3f4f6;
    --color-light: #f8fafc;
    --color-white: #ffffff;
    
    /* Typography */
    --font-display: 'Syne', sans-serif;
    --font-mono: 'Space Mono', monospace;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --shadow-glow: 0 0 40px rgb(13 148 136 / 0.3);
    --shadow-glow-accent: 0 0 40px rgb(245 158 11 / 0.3);
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-blur: blur(20px);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-display);
    background: var(--color-dark);
    color: var(--color-gray-200);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Grain Overlay */
.grain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-white);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

/* ========================================
   Navigation
   ======================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-lg) 0;
    transition: all var(--transition-base);
}

.nav.scrolled {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: var(--space-md) 0;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.25rem;
    text-decoration: none;
}

.logo-image {
    height: 45px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    transition: transform var(--transition-fast);
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    filter: brightness(1.1) contrast(1.1);
    -webkit-filter: brightness(1.1) contrast(1.1);
}

.logo-image:hover {
    transform: scale(1.05);
    filter: brightness(1.15) contrast(1.15);
    -webkit-filter: brightness(1.15) contrast(1.15);
}

.logo-text {
    display: flex;
    align-items: baseline;
    gap: var(--space-xs);
}

.logo-py {
    color: var(--color-accent);
}

.logo-data {
    color: var(--color-primary-light);
}

.logo-city {
    font-size: 0.875rem;
    color: var(--color-gray-400);
    margin-left: var(--space-xs);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    list-style: none;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-gray-300);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-white);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
}

.nav-cta {
    background: var(--color-primary);
    color: var(--color-white) !important;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast) !important;
}

.nav-cta:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-white);
    transition: all var(--transition-fast);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4xl) 0;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.hero-image {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    z-index: 0;
    filter: brightness(0.7) contrast(1.1);
    animation: heroImageZoom 30s ease-in-out infinite alternate;
}

@keyframes heroImageZoom {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(1.05);
    }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: 
        /* Dark overlay from top and bottom for text readability */
        linear-gradient(to bottom, rgba(15, 23, 42, 0.6) 0%, transparent 30%, transparent 70%, rgba(15, 23, 42, 0.7) 100%),
        /* Subtle darkening overall */
        linear-gradient(135deg, rgba(15, 23, 42, 0.4) 0%, rgba(15, 23, 42, 0.5) 100%);
    z-index: 1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: 
        /* Subtle color accents that don't overpower the image */
        radial-gradient(ellipse 100% 60% at 50% 20%, rgba(6, 182, 212, 0.15), transparent),
        radial-gradient(ellipse 80% 50% at 80% 70%, rgba(249, 115, 22, 0.1), transparent),
        radial-gradient(ellipse 60% 40% at 20% 80%, rgba(6, 182, 212, 0.12), transparent);
    z-index: 2;
    mix-blend-mode: soft-light;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent);
}

.floating-shapes {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: rgba(6, 182, 212, 0.35);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: rgba(249, 115, 22, 0.25);
    top: 60%;
    right: 10%;
    animation-delay: -5s;
}

.shape-3 {
    width: 250px;
    height: 250px;
    background: rgba(6, 182, 212, 0.3);
    bottom: 20%;
    left: 30%;
    animation-delay: -10s;
}

.shape-4 {
    width: 200px;
    height: 200px;
    background: rgba(249, 115, 22, 0.2);
    top: 30%;
    right: 30%;
    animation-delay: -15s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(30px, -30px) scale(1.05);
    }
    50% {
        transform: translate(-20px, 20px) scale(0.95);
    }
    75% {
        transform: translate(-30px, -20px) scale(1.02);
    }
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    max-width: 900px;
    padding: 0 var(--space-xl);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: rgba(6, 182, 212, 0.25);
    border: 1px solid rgba(6, 182, 212, 0.6);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--color-primary-light);
    margin-bottom: var(--space-xl);
    animation: fadeInUp 0.8s ease-out;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    box-shadow: 
        0 4px 20px rgba(0, 0, 0, 0.5),
        0 0 30px rgba(6, 182, 212, 0.3);
    position: relative;
    z-index: 1;
    font-weight: 500;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.2);
    }
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-xl);
    animation: fadeInUp 0.8s ease-out 0.1s both;
    text-shadow: 
        0 4px 30px rgba(0, 0, 0, 0.9),
        0 8px 60px rgba(0, 0, 0, 0.7),
        0 0 80px rgba(15, 23, 42, 0.6),
        0 2px 4px rgba(0, 0, 0, 0.8);
    position: relative;
    z-index: 1;
}

.title-line {
    display: block;
}

.title-highlight {
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 4px 20px rgba(6, 182, 212, 0.7)) drop-shadow(0 2px 10px rgba(249, 115, 22, 0.5));
    position: relative;
    text-shadow: none;
}

.title-highlight::before {
    content: attr(data-text);
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: blur(15px);
    opacity: 0.6;
    z-index: -1;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--color-white);
    max-width: 600px;
    margin: 0 auto var(--space-2xl);
    animation: fadeInUp 0.8s ease-out 0.2s both;
    text-shadow: 
        0 3px 15px rgba(0, 0, 0, 0.9),
        0 6px 30px rgba(0, 0, 0, 0.7),
        0 0 40px rgba(15, 23, 42, 0.5),
        0 1px 3px rgba(0, 0, 0, 0.8);
    position: relative;
    z-index: 1;
    font-weight: 400;
}

.hero-actions {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-3xl);
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2xl);
    animation: fadeInUp 0.8s ease-out 0.4s both;
    margin-bottom: var(--space-3xl);
    padding-bottom: var(--space-2xl);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-white);
    font-family: var(--font-mono);
    text-shadow: 
        0 3px 15px rgba(0, 0, 0, 0.8),
        0 0 30px rgba(15, 23, 42, 0.5);
    position: relative;
    z-index: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-white);
    text-shadow: 
        0 2px 10px rgba(0, 0, 0, 0.7),
        0 0 20px rgba(15, 23, 42, 0.4);
    position: relative;
    z-index: 1;
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, transparent, var(--color-gray-700), transparent);
}

.scroll-indicator {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-gray-500);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    animation: fadeIn 1s ease-out 1s both;
    z-index: 10;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-primary-light), transparent);
    animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
    0%, 100% {
        transform: scaleY(1);
        opacity: 1;
    }
    50% {
        transform: scaleY(0.5);
        opacity: 0.5;
    }
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: var(--color-white);
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.4), 0 0 0 0 rgba(6, 182, 212, 0.5);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

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

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 30px rgba(6, 182, 212, 0.5), 0 0 0 4px rgba(6, 182, 212, 0.2);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary-light);
    border: 1px solid var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-large {
    padding: var(--space-lg) var(--space-2xl);
    font-size: 1rem;
}

/* ========================================
   Sections
   ======================================== */
section {
    padding: var(--space-4xl) 0;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-primary-light);
    margin-bottom: var(--space-md);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--space-lg);
}

.section-title .highlight {
    color: var(--color-primary-light);
}

.section-text {
    color: var(--color-gray-400);
    font-size: 1.1rem;
    margin-bottom: var(--space-lg);
}

.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-primary-light);
    font-weight: 600;
    transition: gap var(--transition-fast);
}

.link-arrow:hover {
    gap: var(--space-md);
}

/* ========================================
   About Preview Section
   ======================================== */
.about-preview {
    background: linear-gradient(180deg, var(--color-dark) 0%, var(--color-dark-soft) 100%);
}

.section-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: start;
}

.section-visual {
    display: grid;
    gap: var(--space-lg);
}

.visual-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.visual-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(6, 182, 212, 0.4);
    transform: translateX(10px) translateY(-5px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.card-icon {
    margin-bottom: var(--space-md);
    color: var(--color-primary-light);
}

.visual-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

.visual-card p {
    color: var(--color-gray-500);
    font-size: 0.9rem;
}

/* ========================================
   Events Preview Section
   ======================================== */
.events-preview {
    background: var(--color-dark-soft);
}

.events-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: var(--space-2xl);
}

.events-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.event-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-base);
    display: flex;
    gap: var(--space-xl);
    box-shadow: var(--shadow-md);
}

.event-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(6, 182, 212, 0.4);
    transform: translateY(-8px) scale(1.01);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.event-card.featured {
    grid-column: span 1;
    border-color: rgba(6, 182, 212, 0.4);
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.15), rgba(249, 115, 22, 0.08));
}

.event-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 60px;
    padding: var(--space-md);
    background: rgba(6, 182, 212, 0.15);
    border-radius: var(--radius-md);
}

.date-day {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--color-primary-light);
    font-family: var(--font-mono);
    line-height: 1;
}

.date-month {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gray-400);
}

.event-content {
    flex: 1;
}

.event-type {
    display: inline-block;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    background: rgba(249, 115, 22, 0.15);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-sm);
}

.event-title {
    font-size: 1.1rem;
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

.event-description {
    font-size: 0.9rem;
    color: var(--color-gray-500);
    margin-bottom: var(--space-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.event-meta {
    display: flex;
    gap: var(--space-lg);
    font-size: 0.8rem;
    color: var(--color-gray-500);
}

.event-meta span {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

/* ========================================
   Topics Section
   ======================================== */
.topics-section {
    background: var(--color-dark);
}

.topics-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.topic-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.topic-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(6, 182, 212, 0.4);
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.topic-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.topic-card h3 {
    font-size: 1rem;
    margin-bottom: var(--space-xs);
}

.topic-card p {
    font-size: 0.8rem;
    color: var(--color-gray-500);
}

/* ========================================
   CTA Section
   ======================================== */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-dark-soft) 100%);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 60% 40% at 20% 80%, rgba(249, 115, 22, 0.25), transparent),
        radial-gradient(ellipse 40% 30% at 80% 20%, rgba(6, 182, 212, 0.35), transparent);
}

.cta-content {
    position: relative;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: clamp(2rem, 5vw, 2.5rem);
    margin-bottom: var(--space-lg);
}

.cta-content p {
    color: var(--color-gray-300);
    font-size: 1.1rem;
    margin-bottom: var(--space-2xl);
}

.cta-actions {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--color-gray-900);
    padding: var(--space-4xl) 0 var(--space-2xl);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

.footer-brand p {
    color: var(--color-gray-500);
    font-size: 0.9rem;
    margin: var(--space-lg) 0;
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: baseline;
    gap: var(--space-xs);
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.25rem;
}

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

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    color: var(--color-gray-400);
    transition: all var(--transition-fast);
}

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

.footer-links h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-lg);
    color: var(--color-gray-300);
}

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

.footer-links li {
    margin-bottom: var(--space-sm);
}

.footer-links a {
    color: var(--color-gray-500);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-primary-light);
}

.footer-bottom {
    padding-top: var(--space-2xl);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.footer-bottom p {
    color: var(--color-gray-600);
    font-size: 0.85rem;
}

.footer-bottom a {
    color: var(--color-primary-light);
}

.footer-credits {
    margin-top: var(--space-sm);
}

/* ========================================
   Page Header (for inner pages)
   ======================================== */
.page-header {
    padding: calc(var(--space-4xl) + 80px) 0 var(--space-3xl);
    background: linear-gradient(180deg, var(--color-dark) 0%, var(--color-dark-soft) 100%);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 60% 40% at 50% 0%, rgba(6, 182, 212, 0.3), transparent);
}

.page-header-content {
    position: relative;
    max-width: 800px;
}

.page-header h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    margin-bottom: var(--space-lg);
}

.page-header p {
    font-size: 1.2rem;
    color: var(--color-gray-400);
}

/* ========================================
   Content Sections (for inner pages)
   ======================================== */
.content-section {
    padding: var(--space-4xl) 0;
}

.content-section.alt-bg {
    background: var(--color-dark-soft);
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.content-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
}

.content-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(6, 182, 212, 0.4);
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.content-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.content-card ul {
    list-style: none;
}

.content-card li {
    position: relative;
    padding-left: var(--space-xl);
    margin-bottom: var(--space-md);
    color: var(--color-gray-400);
}

.content-card li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-primary-light);
}

/* ========================================
   Sponsor Tiers
   ======================================== */
.sponsor-tiers {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.tier-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    text-align: center;
    transition: all var(--transition-base);
}

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

.tier-card.platinum {
    border-color: rgba(229, 228, 226, 0.3);
    background: linear-gradient(135deg, rgba(229, 228, 226, 0.05), transparent);
}

.tier-card.gold {
    border-color: rgba(255, 215, 0, 0.3);
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.05), transparent);
}

.tier-card.silver {
    border-color: rgba(192, 192, 192, 0.3);
    background: linear-gradient(135deg, rgba(192, 192, 192, 0.05), transparent);
}

.tier-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.tier-card.platinum .tier-name {
    background: linear-gradient(135deg, #e5e4e2, #a9a9a9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tier-card.gold .tier-name {
    background: linear-gradient(135deg, #ffd700, #ffaa00);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tier-card.silver .tier-name {
    background: linear-gradient(135deg, #c0c0c0, #808080);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tier-price {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: var(--space-lg);
}

.tier-features {
    list-style: none;
    text-align: left;
    margin-bottom: var(--space-xl);
}

.tier-features li {
    padding: var(--space-sm) 0;
    color: var(--color-gray-400);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.tier-features li::before {
    content: '✓';
    color: var(--color-primary-light);
    font-weight: bold;
}

/* ========================================
   Contact Form
   ======================================== */
.contact-form {
    max-width: 600px;
}

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

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: var(--space-sm);
    color: var(--color-gray-300);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    background: rgba(15, 23, 42, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-family: var(--font-display);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-group select {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    background: rgba(15, 23, 42, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-family: var(--font-display);
    font-size: 1rem;
    transition: all var(--transition-fast);
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2306b6d4' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-lg) center;
    padding-right: calc(var(--space-lg) + 20px);
    cursor: pointer;
}

.form-group select::-ms-expand {
    display: none; /* Hide default arrow in IE */
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.2);
}

/* Select dropdown options styling */
/* Note: Browser support for styling options is limited, but we try our best */
.form-group select option {
    background-color: var(--color-dark);
    color: var(--color-white);
    padding: var(--space-sm) var(--space-md);
}

/* For Firefox */
@-moz-document url-prefix() {
    .form-group select option {
        background-color: var(--color-dark);
        color: var(--color-white);
    }
}

/* Selected option */
.form-group select option:checked,
.form-group select option[selected] {
    background-color: var(--color-primary);
    color: var(--color-white);
}

/* Ensure select maintains styling when focused/open */
.form-group select:focus,
.form-group select:active {
    background-color: rgba(15, 23, 42, 0.95);
    color: var(--color-white);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.form-group input:invalid:not(:placeholder-shown),
.form-group textarea:invalid:not(:placeholder-shown),
.form-group select:invalid:not(:placeholder-shown) {
    border-color: #ef4444;
}

.form-message {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    font-size: 0.95rem;
    animation: fadeInUp 0.3s ease-out;
}

.form-message-success {
    background: rgba(13, 148, 136, 0.2);
    border: 1px solid rgba(13, 148, 136, 0.4);
    color: #14b8a6;
}

.form-message-success::before {
    content: '✓';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(13, 148, 136, 0.3);
    color: #14b8a6;
    font-weight: bold;
    flex-shrink: 0;
}

.form-message-error {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.4);
    color: #f87171;
}

.form-message-error::before {
    content: '✕';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(239, 68, 68, 0.3);
    color: #f87171;
    font-weight: bold;
    flex-shrink: 0;
}

#submitBtn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

#submitBtn:disabled:hover {
    transform: none;
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.4);
}

/* ========================================
   Code of Conduct
   ======================================== */
.coc-section {
    margin-bottom: var(--space-3xl);
}

.coc-section h2 {
    font-size: 1.75rem;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.coc-section h3 {
    font-size: 1.25rem;
    margin: var(--space-xl) 0 var(--space-md);
    color: var(--color-primary-light);
}

.coc-section p {
    color: var(--color-gray-400);
    margin-bottom: var(--space-md);
    line-height: 1.8;
}

.coc-section ul {
    list-style: none;
    margin: var(--space-lg) 0;
}

.coc-section li {
    position: relative;
    padding-left: var(--space-xl);
    margin-bottom: var(--space-md);
    color: var(--color-gray-400);
    line-height: 1.7;
}

.coc-section li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary-light);
    font-size: 1.2em;
}

.highlight-box {
    background: rgba(6, 182, 212, 0.15);
    border: 1px solid rgba(6, 182, 212, 0.4);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin: var(--space-xl) 0;
}

.highlight-box h4 {
    font-size: 1rem;
    margin-bottom: var(--space-md);
    color: var(--color-primary-light);
}

.warning-box {
    background: rgba(249, 115, 22, 0.15);
    border: 1px solid rgba(249, 115, 22, 0.4);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin: var(--space-xl) 0;
}

.warning-box h4 {
    font-size: 1rem;
    margin-bottom: var(--space-md);
    color: var(--color-accent);
}

/* ========================================
   Events Page
   ======================================== */
.events-filter {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--space-sm) var(--space-lg);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: var(--color-gray-400);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.events-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.event-card-full {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    display: grid;
    grid-template-columns: 100px 1fr auto;
    gap: var(--space-2xl);
    align-items: center;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.event-card-full:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(6, 182, 212, 0.4);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.past-events-section {
    opacity: 0.7;
}

.past-events-section h2 {
    margin-bottom: var(--space-xl);
    color: var(--color-gray-400);
}

/* ========================================
   Team Section
   ======================================== */
.team-section {
    background: var(--color-dark-soft);
    padding: var(--space-4xl) 0;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-2xl);
    margin-top: var(--space-3xl);
}

.team-member {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    text-align: center;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.team-member:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(6, 182, 212, 0.4);
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.team-name-link {
    color: var(--color-white);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.team-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto var(--space-lg);
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-white);
    border: 3px solid rgba(6, 182, 212, 0.4);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    object-fit: cover;
}

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

.team-member h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

.team-role {
    color: var(--color-primary-light);
    font-size: 0.9rem;
    margin-bottom: var(--space-md);
    font-weight: 500;
}

.team-bio {
    color: var(--color-gray-400);
    font-size: 0.9rem;
    line-height: 1.6;
}

.team-social {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    margin-top: var(--space-lg);
}

.team-social a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    color: var(--color-gray-400);
    transition: all var(--transition-fast);
}

.team-social a:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-3px);
}

/* ========================================
   Coming Soon Section
   ======================================== */
.coming-soon {
    text-align: center;
    padding: var(--space-4xl) 0;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    margin: var(--space-3xl) 0;
}

.coming-soon-icon {
    font-size: 5rem;
    margin-bottom: var(--space-xl);
    animation: pulse 2s infinite;
}

.coming-soon h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--space-lg);
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.coming-soon p {
    font-size: 1.2rem;
    color: var(--color-gray-400);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .section-grid,
    .content-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .events-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .topics-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .sponsor-tiers {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--color-dark-soft);
        padding: var(--space-xl);
        gap: var(--space-lg);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all var(--transition-base);
    }
    
    .logo-image {
        height: 38px;
    }
    
    .logo-text {
        font-size: 1rem;
    }
    
    .nav-links.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-lg);
        margin-bottom: var(--space-4xl);
    }
    
    .stat-divider {
        width: 40px;
        height: 1px;
    }
    
    .scroll-indicator {
        bottom: var(--space-md);
    }
    
    .events-grid {
        grid-template-columns: 1fr;
    }
    
    .event-card.featured {
        grid-column: span 1;
    }
    
    .topics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .team-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: var(--space-3xl) auto 0;
    }
    
    .events-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-lg);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand p {
        max-width: 100%;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .event-card-full {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .event-date {
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-lg);
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .topics-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-actions {
        flex-direction: column;
    }
    
    .event-card {
        flex-direction: column;
    }
    
    .event-date {
        align-self: flex-start;
    }
}