:root {
    --primary: #FF6B35;
    --secondary: #FFD166;
    --accent: #06D6A0;
    --dark: #1A1A2E;
    --darker: #16213E;
    --light: #EAEAEA;
    --white: #FFFFFF;
    --danger: #EF476F;
    
    --gradient-carnival: linear-gradient(135deg, #FF6B35 0%, #FFD166 50%, #06D6A0 100%);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    --radius: 12px;
}

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

body {
    font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--dark);
    color: var(--light);
    min-height: 100vh;
    line-height: 1.6;
}

/* Header */
header {
    background: var(--gradient-carnival);
    padding: 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.header-content {
    position: relative;
    z-index: 1;
}

header h1 {
    font-size: 3rem;
    font-weight: 700;
    color: var(--white);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
    margin-bottom: 0.5rem;
}

.tagline {
    font-size: 1.2rem;
    color: var(--white);
    opacity: 0.9;
}

.countdown {
    position: relative;
    z-index: 1;
    margin-top: 1.5rem;
    background: rgba(0,0,0,0.2);
    border-radius: var(--radius);
    padding: 1rem 2rem;
    display: inline-block;
}

.countdown-label {
    font-size: 0.9rem;
    opacity: 0.9;
    color: var(--white);
}

.countdown-timer {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-top: 0.5rem;
}

.countdown-unit {
    text-align: center;
    color: var(--white);
}

.countdown-unit span {
    font-size: 2rem;
    font-weight: 700;
    display: block;
}

.countdown-unit small {
    font-size: 0.8rem;
    opacity: 0.8;
}

/* Main */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Filters */
.filters {
    background: var(--darker);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    align-items: center;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-group label {
    font-size: 0.85rem;
    color: var(--secondary);
    font-weight: 500;
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-btn {
    background: var(--dark);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--light);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

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

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

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    color: var(--light);
    font-size: 0.9rem;
}

.checkbox-label input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

/* Events */
.events-timeline h2,
.my-events h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.events-list {
    display: grid;
    gap: 1rem;
}

.events-list.empty {
    background: var(--darker);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
}

.empty-state {
    color: rgba(255,255,255,0.5);
}

/* Event Card */
.event-card {
    background: var(--darker);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 1rem;
    align-items: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    cursor: pointer;
    border-left: 4px solid var(--primary);
}

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

.event-card.barranquilla { border-left-color: var(--primary); }
.event-card.santamarta { border-left-color: var(--accent); }
.event-card.cartagena { border-left-color: var(--secondary); }

.event-date {
    text-align: center;
    min-width: 60px;
}

.event-date .day {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1;
}

.event-date .month {
    font-size: 0.85rem;
    color: var(--secondary);
    text-transform: uppercase;
}

.event-date .weekday {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.5);
}

.event-info h3 {
    font-size: 1.1rem;
    color: var(--white);
    margin-bottom: 0.25rem;
}

.event-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.7);
}

.event-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.event-actions {
    display: flex;
    gap: 0.5rem;
}

.action-btn {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--light);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.action-btn.saved {
    background: var(--secondary);
    border-color: var(--secondary);
    color: var(--dark);
}

/* My Events Section */
.my-events {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--darker);
    margin: 10% auto;
    padding: 2rem;
    border-radius: var(--radius);
    max-width: 600px;
    position: relative;
}

.close {
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: rgba(255,255,255,0.5);
    transition: color 0.2s;
}

.close:hover {
    color: var(--white);
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
}

.update-time {
    margin-top: 0.5rem;
    font-size: 0.8rem;
}

/* Conflict Badge */
.conflict-badge {
    background: var(--danger);
    color: var(--white);
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
    border-radius: 10px;
    margin-left: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .filters {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .event-card {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .event-date {
        display: flex;
        gap: 0.5rem;
        align-items: baseline;
    }
    
    .event-actions {
        justify-content: flex-end;
    }
}