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

:root {
    /* Colores por juego */
    --genshin-primary: #5ac0de;
    --genshin-secondary: #4a9ab8;
    --honkai-primary: #9d7dce;
    --honkai-secondary: #7d5dae;
    
    /* Colores base */
    --bg-primary: #0f1419;
    --bg-secondary: #1a1f26;
    --bg-card: #252b33;
    --text-primary: #ffffff;
    --text-secondary: #9ca3af;
    --border-color: #374151;
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

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

/* Header */
.header {
    background: linear-gradient(135deg, var(--genshin-primary), var(--honkai-primary));
    padding: var(--spacing-lg) 0;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.header-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.header-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Main content */
.main {
    padding: var(--spacing-xl) 0;
}

/* Loading state */
.loading {
    text-align: center;
    padding: var(--spacing-xl);
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--genshin-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-sm);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Error message */
.error-message {
    background-color: #dc2626;
    color: white;
    padding: var(--spacing-md);
    border-radius: 8px;
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

/* Game sections */
.game-section {
    margin-bottom: var(--spacing-xl);
}

.game-title {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 3px solid;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.genshin-section .game-title {
    border-color: var(--genshin-primary);
    color: var(--genshin-primary);
}

.honkai-section .game-title {
    border-color: var(--honkai-primary);
    color: var(--honkai-primary);
}

.game-icon {
    font-size: 2rem;
}

/* Events grid */
.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

/* Event card */
.event-card {
    background-color: var(--bg-card);
    border-radius: 12px;
    padding: var(--spacing-md);
    border-left: 4px solid;
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
    overflow: hidden;
}

.event-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
}

.event-card.genshin {
    border-color: var(--genshin-primary);
}

.event-card.honkai {
    border-color: var(--honkai-primary);
}

.event-type {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
}

.event-card.genshin .event-type {
    background-color: var(--genshin-primary);
    color: var(--bg-primary);
}

.event-card.honkai .event-type {
    background-color: var(--honkai-primary);
    color: var(--bg-primary);
}

.event-banner {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.event-characters {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-size: 0.9rem;
}

.countdown {
    background-color: var(--bg-secondary);
    padding: var(--spacing-sm);
    border-radius: 8px;
    text-align: center;
}

.countdown-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.countdown-time {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: 'Courier New', monospace;
}

.countdown-time.ending-soon {
    color: #f59e0b;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.event-end-date {
    margin-top: var(--spacing-sm);
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-align: center;
}

/* Update info footer */
.update-info {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.timezone-info {
    margin-top: var(--spacing-xs);
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    .header-title {
        font-size: 2rem;
    }
    
    .game-title {
        font-size: 1.5rem;
    }
    
    .events-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-md: 1rem;
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
    }
    
    .header-title {
        font-size: 1.5rem;
    }
    
    .header-subtitle {
        font-size: 0.9rem;
    }
}