/* ===================================
   CSS Variables & Design Tokens
   =================================== */
:root {
    /* Colors */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --success-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);

    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #00f2fe;
    --success-color: #43e97b;

    --bg-dark: #0a0e27;
    --bg-darker: #060818;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);

    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Space Grotesk', var(--font-primary);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.3);

    --shadow-glow: 0 0 20px rgba(102, 126, 234, 0.3);
    --shadow-glow-hover: 0 0 30px rgba(102, 126, 234, 0.5);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Z-index */
    --z-modal: 1000;
    --z-nav: 100;
    --z-hero-canvas: 1;
    --z-hero-content: 2;
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

/* ===================================
   Utility Classes
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.gradient-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-nav);
    background: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-base);
}

.navbar.scrolled {
    background: rgba(10, 14, 39, 0.95);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon {
    font-size: 2rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-link {
    position: relative;
    padding: 0.5rem 0;
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition-base);
}

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

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-base);
}

/* Profile Dropdown */
.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.profile-dropdown {
    position: relative;
}

.profile-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.profile-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
}

.profile-menu {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    min-width: 200px;
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
    z-index: 1000;
}

.profile-dropdown:hover .profile-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.profile-menu-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    color: var(--text-secondary);
    transition: all var(--transition-base);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.profile-menu-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.profile-menu-item svg {
    flex-shrink: 0;
}

/* Login Modal */
.login-modal-content {
    max-width: 450px;
    padding: 0;
}

.login-container {
    padding: var(--spacing-2xl) var(--spacing-2xl) var(--spacing-3xl);
}

.login-container h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.login-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    font-size: 1rem;
}

.login-error-message {
    background: rgba(245, 87, 108, 0.1);
    border: 1px solid rgba(245, 87, 108, 0.3);
    color: #f5576c;
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    text-align: center;
    font-weight: 500;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.login-form .form-group {
    margin-bottom: 0;
}

.login-form .form-group label {
    display: block;
    margin-bottom: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    transition: var(--transition-base);
}

.login-form .form-group:focus-within label {
    color: var(--primary-color);
}

.password-input-wrapper,
.input-wrapper {
    position: relative;
}

.password-input-wrapper input,
.login-form input[type="text"],
.login-form input[type="email"] {
    width: 100%;
    padding: 1rem 1.25rem;
    padding-left: 3rem;
    padding-right: 3rem;
    /* Space for eye toggle or just symmetry */
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-base);
}

.login-form .form-group {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
    transition: var(--transition-base);
    z-index: 1;
}

.login-form .form-group:focus-within .input-icon {
    color: var(--primary-color);
}

.password-input-wrapper input:focus,
.login-form input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary-color);
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.15);
}

.password-toggle {
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    width: 3rem;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-base);
}

.password-toggle:hover {
    color: var(--text-primary);
}

.password-toggle svg {
    pointer-events: none;
}

.login-form .btn-primary {
    margin-top: 1.5rem;
    height: 3.5rem;
    font-size: 1.1rem;
    letter-spacing: 1px;
}

/* ===================================
   Hero Section
   =================================== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
}

#hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-hero-canvas);
}

.hero-content {
    position: relative;
    z-index: var(--z-hero-content);
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-lg);
    max-width: 1200px;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    margin-bottom: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.title-line {
    display: block;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.title-line:nth-child(2) {
    animation-delay: 0.2s;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.4s forwards;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.6s forwards;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.8s forwards;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
    opacity: 0;
    animation: fadeInUp 0.8s ease 1s forwards;
}

.scroll-arrow {
    width: 20px;
    height: 30px;
    border: 2px solid var(--text-muted);
    border-radius: 15px;
    position: relative;
}

.scroll-arrow::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 2px;
    animation: scrollDown 1.5s ease-in-out infinite;
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(-100%);
    transition: var(--transition-base);
}

.btn:hover::before {
    transform: translateX(0);
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--text-primary);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
    display: block;
}

/* ===================================
   Section Styles
   =================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

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

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   Events Section
   =================================== */
.events-section {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-darker);
    position: relative;
}

.events-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-xl);
}

.event-card {
    perspective: 1000px;
    width: 100%;
    max-width: 420px;
    flex: 0 1 420px;
}

.event-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
    transform-style: preserve-3d;
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.event-card:hover .event-card-inner {
    transform: translateY(-10px) rotateX(5deg);
    background: var(--bg-card-hover);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    border-color: rgba(102, 126, 234, 0.3);
}

.event-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--primary-gradient);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
}

.event-date {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 0.75rem;
    min-width: 70px;
}

.date-day {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1;
}

.date-month {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.event-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    word-break: break-word;
    overflow-wrap: break-word;
}

.event-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

.event-meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.event-btn {
    display: inline-block;
    width: 100%;
    padding: 1rem;
    background: var(--primary-gradient);
    color: var(--text-primary);
    text-align: center;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition-base);
    margin-top: auto;
    flex-shrink: 0;
}

.event-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-hover);
}

/* ===================================
   Modal
   =================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-modal);
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.modal.active {
    display: flex;
    opacity: 1;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    background: var(--bg-dark);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
    margin: var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    transform: scale(0.9);
    transition: transform var(--transition-base);
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-base);
    z-index: 10;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.event-details-container {
    padding: var(--spacing-2xl);
}

.event-details-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-xl);
    gap: var(--spacing-md);
}

.event-details-body {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
}

.event-timeline {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.timeline-item {
    display: flex;
    gap: var(--spacing-md);
    position: relative;
}

.timeline-item:not(:last-child)::before {
    content: '';
    position: absolute;
    left: 11px;
    top: 30px;
    width: 2px;
    height: calc(100% + var(--spacing-lg));
    background: linear-gradient(180deg, rgba(102, 126, 234, 0.5) 0%, transparent 100%);
}

.timeline-marker {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-gradient);
    flex-shrink: 0;
    box-shadow: var(--shadow-glow);
}

.timeline-content h4 {
    margin-bottom: 0.25rem;
    font-size: 1rem;
}

.timeline-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.event-details-info h3 {
    margin-bottom: var(--spacing-md);
}

.event-details-info p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.event-speakers {
    margin-bottom: var(--spacing-lg);
}

.event-speakers h4 {
    margin-bottom: var(--spacing-md);
}

.speakers-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.speaker-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    padding: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
}

.speaker-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.speaker-info h5 {
    margin-bottom: 0.25rem;
}

.speaker-info p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin: 0;
}

.event-venue {
    margin-bottom: var(--spacing-xl);
}

.event-venue h4 {
    margin-bottom: var(--spacing-sm);
}

/* ===================================
   Registration Section
   =================================== */
.registration-section {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-dark);
}

.registration-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.registration-info h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.registration-info>p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
}

.benefits-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 1.125rem;
}

.benefit-icon {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--success-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.registration-form-container {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-lg);
}

.registration-form h3 {
    margin-bottom: var(--spacing-lg);
    font-size: 1.75rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group select {
    cursor: pointer;
}

/* ===================================
   Gallery Section
   =================================== */
.gallery-section {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-darker);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.gallery-item {
    perspective: 1000px;
    height: 340px;
    position: relative;
}

/* Image Carousel inside gallery items */
.gallery-carousel {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.gallery-carousel-track {
    display: flex;
    width: 100%;
    height: 100%;
    transition: transform 0.5s ease;
}

.gallery-carousel-slide {
    min-width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    flex-shrink: 0;
}

.gallery-carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 34px;
    height: 34px;
    background: rgba(0, 0, 0, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: #fff;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: background var(--transition-fast), opacity var(--transition-fast);
    opacity: 0;
}

.gallery-carousel-btn.prev {
    left: 10px;
}

.gallery-carousel-btn.next {
    right: 10px;
}

.gallery-carousel:hover .gallery-carousel-btn {
    opacity: 1;
}

.gallery-carousel-btn:hover {
    background: rgba(102, 126, 234, 0.8);
}

.gallery-carousel-dots {
    position: absolute;
    bottom: 52px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 6px;
    z-index: 10;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.gallery-carousel:hover .gallery-carousel-dots {
    opacity: 1;
}

.gallery-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background var(--transition-fast), transform var(--transition-fast);
    border: none;
    padding: 0;
}

.gallery-dot.active {
    background: #fff;
    transform: scale(1.3);
}

.gallery-image {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    transform-style: preserve-3d;
    cursor: pointer;
}

.gallery-item:hover .gallery-image {
    transform: translateY(-10px) rotateX(5deg) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-lg);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    transform: translateY(100%);
    transition: var(--transition-base);
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h4 {
    margin-bottom: 0.25rem;
}

.gallery-overlay p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ===================================
   Team Section
   =================================== */
.team-section {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-dark);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.team-card {
    perspective: 1000px;
    height: 400px;
}

.team-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform var(--transition-slow);
    transform-style: preserve-3d;
}

.team-card:hover .team-card-inner {
    transform: rotateY(180deg);
}

.team-card-inner-simple {
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.simple-card:hover .team-card-inner-simple {
    transform: translateY(-10px);
    border-color: rgba(255, 255, 255, 0.15);
}

.team-card-front,
.team-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.team-card-front {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.team-card-back {
    background: var(--primary-gradient);
    transform: rotateY(180deg);
}

.team-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    border: 3px solid rgba(255, 255, 255, 0.2);
}

.avatar-placeholder {
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 700;
}

.team-card-front h3 {
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.team-role {
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.team-social {
    display: flex;
    gap: var(--spacing-sm);
}

.team-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    transition: var(--transition-base);
}

.team-social a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.team-card-back h4 {
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.team-card-back p {
    margin-bottom: var(--spacing-lg);
    font-size: 0.95rem;
    line-height: 1.6;
}

.team-achievements {
    list-style: none;
    text-align: left;
}

.team-achievements li {
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--bg-darker);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.footer-section h4 {
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

.footer-section p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

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

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section ul li a {
    color: var(--text-secondary);
    transition: var(--transition-base);
}

.footer-section ul li a:hover {
    color: var(--text-primary);
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
}

.social-link:hover {
    background: var(--primary-gradient);
    transform: translateY(-3px);
}

.social-link svg {
    width: 18px;
    height: 18px;
}

.contact-info li {
    color: var(--text-secondary);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
}

/* ===================================
   Animations
   =================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scrollDown {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(8px);
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .event-details-body {
        grid-template-columns: 1fr;
    }

    .registration-wrapper {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(10, 14, 39, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--spacing-xl);
        transition: var(--transition-base);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .events-grid {
        grid-template-columns: 1fr;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .team-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .modal-content {
        margin: var(--spacing-sm);
    }

    .event-details-container {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
        --spacing-3xl: 4rem;
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
    }

    .hero-stats {
        gap: var(--spacing-md);
    }
}

.gallery-carousel {
    position: relative;
    height: 220px;
    overflow: hidden;
    border-radius: 12px;
}

.gallery-carousel .carousel-track {
    display: flex;
    height: 100%;
    transition: transform 0.35s ease;
}

.gallery-carousel .carousel-track img {
    min-width: 100%;
    height: 100%;
    object-fit: cover;
    flex-shrink: 0;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    border: none;
    color: #fff;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
    opacity: 0;
    transition: opacity 0.2s;
}

.gallery-carousel:hover .carousel-btn {
    opacity: 1;
}

.carousel-btn.prev {
    left: 8px;
}

.carousel-btn.next {
    right: 8px;
}

.carousel-dots {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 5px;
    z-index: 3;
}

.carousel-dots .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background 0.2s;
}

.carousel-dots .dot.active {
    background: #fff;
}

.carousel-counter {
    position: absolute;
    top: 8px;
    right: 10px;
    background: rgba(0, 0, 0, 0.5);
    color: #fff;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 10px;
    z-index: 3;
}