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

:root {
    --primary: #0ea5e9;
    --primary-dark: #0284c7;
    --secondary: #14b8a6;
    --accent: #f59e0b;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --border: #e2e8f0;
    --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);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.brand-icon {
    font-size: 24px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.2s;
}

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

.nav-link-secondary {
    background: var(--primary);
    color: white;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: background 0.2s;
}

.nav-link-secondary:hover {
    background: var(--primary-dark);
    color: white;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    padding: 80px 0 120px;
    background: linear-gradient(135deg, #f8fafc 0%, #e0f2fe 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(14, 165, 233, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(20, 184, 166, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    position: relative;
    z-index: 1;
}

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

.hero-title {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.btn {
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    display: inline-block;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: white;
    color: var(--text-primary);
    border: 2px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-large {
    padding: 18px 36px;
    font-size: 18px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Hero Visual */
.hero-visual {
    position: relative;
}

.hero-card-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    max-width: 400px;
}

.hero-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid var(--border);
}

.hero-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-1 {
    grid-column: 1;
    grid-row: 1;
}

.card-2 {
    grid-column: 2;
    grid-row: 1;
}

.card-3 {
    grid-column: 1;
    grid-row: 2;
}

.card-4 {
    grid-column: 2;
    grid-row: 2;
}

.card-emoji {
    font-size: 32px;
    margin-bottom: 12px;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.card-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Quick Filters */
.quick-filters {
    padding: 80px 0;
    background: var(--bg-primary);
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 48px;
    text-align: center;
    letter-spacing: -0.01em;
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 20px;
}

.filter-card {
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.filter-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.filter-icon {
    font-size: 32px;
    margin-bottom: 8px;
}

.filter-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.filter-count {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Featured Events */
.featured-events {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 48px;
}

.view-all-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: color 0.2s;
}

.view-all-link:hover {
    color: var(--primary-dark);
}

.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

.event-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid var(--border);
}

.event-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.event-image {
    height: 180px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.event-emoji {
    font-size: 64px;
}

.event-content {
    padding: 24px;
}

.event-date {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.event-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
    line-height: 1.3;
}

.event-location {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.event-tags {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.tag {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
}

.event-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: color 0.2s;
}

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

/* Categories */
.categories {
    padding: 80px 0;
    background: var(--bg-primary);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.category-card {
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    transition: all 0.2s;
    cursor: pointer;
}

.category-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.category-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.category-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.category-description {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.category-count {
    font-size: 14px;
    color: var(--primary);
    font-weight: 600;
}

/* CTA Section */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    text-align: center;
}

.cta-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-description {
    font-size: 20px;
    margin-bottom: 32px;
    opacity: 0.9;
}

.cta-section .btn-primary {
    background: white;
    color: var(--primary);
}

.cta-section .btn-primary:hover {
    background: var(--bg-tertiary);
}

/* Footer */
.footer {
    padding: 64px 0 32px;
    background: var(--text-primary);
    color: white;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 48px;
    margin-bottom: 48px;
}

.footer-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-heading {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 73px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        display: none;
        gap: 16px;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .hero-title {
        font-size: 40px;
    }

    .hero-description {
        font-size: 18px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-stats {
        gap: 32px;
    }

    .section-title {
        font-size: 32px;
    }

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

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

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

    .cta-title {
        font-size: 36px;
    }
}