:root {
    /* Light Mode */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-card: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #6b7280;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --border-color: #e5e7eb;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.15);
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

[data-theme="dark"] {
    /* Dark Mode */
    --bg-primary: #1a1a1a;
    --bg-secondary: #0f0f0f;
    --bg-card: #242424;
    --text-primary: #f5f5f5;
    --text-secondary: #a0a0a0;
    --accent-color: #60a5fa;
    --accent-hover: #3b82f6;
    --border-color: #333333;
    --shadow: rgba(0, 0, 0, 0.4);
    --shadow-hover: rgba(0, 0, 0, 0.5);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Inter', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navigation */
.top-nav {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px var(--shadow);
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}

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

.theme-switch-container {
    display: flex;
    align-items: center;
}

.theme-buttons {
    display: flex;
    gap: 0.5rem;
    background: var(--bg-secondary);
    padding: 0.25rem;
    border-radius: 8px;
}

.theme-button {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.theme-button:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.theme-button.active {
    background: var(--accent-color);
    color: #ffffff;
}

/* Hero Section */
.hero-section {
    position: relative;
    background: var(--gradient-hero);
    color: #ffffff;
    padding: 6rem 0 4rem;
    text-align: center;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.2);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.event-category-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.95;
    margin-bottom: 2rem;
}

.hero-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
}

.meta-item i {
    opacity: 0.9;
}

/* Main Content */
.main-content {
    padding: 4rem 0;
}

.content-layout {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 3rem;
}

.main-column {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.content-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 2px 8px var(--shadow);
}

.content-section h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
}

.content-section h2 i {
    color: var(--accent-color);
}

.content-section p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

/* Lineup */
.lineup-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.artist-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.artist-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px var(--shadow-hover);
    border-color: var(--accent-color);
}

.artist-card.featured-artist {
    border: 2px solid var(--accent-color);
    background: var(--bg-card);
}

.artist-image {
    width: 80px;
    height: 80px;
    background: var(--gradient-hero);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2rem;
    color: #ffffff;
}

.artist-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.artist-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
}

.artist-genre {
    display: inline-block;
    background: var(--accent-color);
    color: #ffffff;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.info-item {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.info-item i {
    font-size: 1.5rem;
    color: var(--accent-color);
    flex-shrink: 0;
}

.info-item h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

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

/* Location */
.location-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 1.5rem;
}

.location-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.location-info p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.location-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.location-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--accent-color);
    color: #ffffff;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.location-button:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.location-map {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
}

.map-placeholder {
    height: 100%;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.map-placeholder i {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.ticket-card,
.share-card,
.organizer-card,
.countdown-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px var(--shadow);
}

.ticket-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.ticket-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.ticket-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
}

.ticket-info {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.ticket-button {
    width: 100%;
    padding: 1rem;
    background: var(--accent-color);
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
    margin-bottom: 1rem;
}

.ticket-button:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.ticket-note {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-align: center;
    margin: 0;
}

.share-card h3,
.organizer-card h3,
.countdown-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.share-buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
}

.share-button {
    width: 100%;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    color: #ffffff;
    text-decoration: none;
    font-size: 1.25rem;
    transition: all 0.2s ease;
}

.share-button.facebook {
    background: #1877f2;
}

.share-button.twitter {
    background: #1da1f2;
}

.share-button.whatsapp {
    background: #25d366;
}

.share-button.email {
    background: var(--accent-color);
}

.share-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.organizer-info {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.organizer-logo {
    width: 60px;
    height: 60px;
    background: var(--gradient-hero);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #ffffff;
    flex-shrink: 0;
}

.organizer-info h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.organizer-info p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.organizer-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.875rem;
}

.organizer-link:hover {
    text-decoration: underline;
}

.countdown {
    display: flex;
    gap: 1rem;
    justify-content: space-around;
}

.countdown-item {
    text-align: center;
}

.countdown-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 0.25rem;
}

.countdown-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Footer */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    text-align: center;
    color: var(--text-secondary);
}

.footer a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
}

.footer a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 968px) {
    .content-layout {
        grid-template-columns: 1fr;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .location-card {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-meta {
        flex-direction: column;
        gap: 1rem;
    }
    
    .lineup-grid {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
}