/* Urban Pulse Design System */

:root {
    /* Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a26;
    --accent-primary: #00ff9f;
    --accent-glow: rgba(0, 255, 159, 0.15);
    --text-primary: #ffffff;
    --text-secondary: #a0a0b8;
    --text-muted: #6b6b82;
    --border: #2a2a3a;

    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;

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

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

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

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

/* Header */
.header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.pulse-dot {
    width: 12px;
    height: 12px;
    background: var(--accent-primary);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
    box-shadow: 0 0 20px var(--accent-primary);
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.2);
    }
}

.logo h1 {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--accent-primary) 0%, #00d4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: 1.125rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Stats Bar */
.stats-bar {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--border);
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.stat-value {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

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

/* Events Grid */
.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

/* Event Card */
.event-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: var(--spacing-md);
    position: relative;
    transition: all 0.3s ease;
    overflow: hidden;
}

.event-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-primary), #00d4ff);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.event-card:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 8px 24px var(--accent-glow);
    transform: translateY(-4px);
}

.event-card:hover::before {
    opacity: 1;
}

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

.rank-badge {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: var(--accent-glow);
    border: 2px solid var(--accent-primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.event-meta {
    flex: 1;
}

.event-title-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

.event-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
    flex: 1;
}

.source-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 4px;
    border: 1px solid;
    white-space: nowrap;
    flex-shrink: 0;
}

.event-time {
    font-size: 0.875rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.event-time::before {
    content: '🕐';
}

.event-description {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.event-location {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.event-location::before {
    content: '📍';
}

.ai-insight-box {
    background: rgba(0, 255, 159, 0.05);
    border-left: 3px solid var(--accent-primary);
    padding: var(--spacing-sm);
    border-radius: 8px;
    margin-bottom: var(--spacing-md);
}

.ai-insight-label {
    font-size: 0.75rem;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    margin-bottom: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.ai-insight-label::before {
    content: '✨';
}

.ai-insight-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.event-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border);
}

.score-bar {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.score-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.score-bar-track {
    flex: 1;
    height: 6px;
    background: var(--bg-secondary);
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}

.score-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), #00d4ff);
    border-radius: 3px;
    transition: width 0.6s ease;
}

.score-value {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--accent-primary);
    min-width: 32px;
    text-align: right;
}

.event-link {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--accent-primary);
    color: var(--bg-primary);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
}

.event-link:hover {
    background: #00ffaa;
    transform: scale(1.05);
}

.event-link::after {
    content: '→';
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--bg-secondary);
    border-radius: 16px;
    border: 1px solid var(--border);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.empty-state h2 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.empty-state p {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-md) var(--spacing-sm);
    }

    .logo h1 {
        font-size: 2rem;
    }

    .tagline {
        font-size: 1rem;
    }

    .events-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .stats-bar {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .event-card {
        padding: var(--spacing-sm);
    }

    .event-title {
        font-size: 1.125rem;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 1.5rem;
    }

    .event-footer {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: stretch;
    }

    .score-bar {
        order: 1;
    }

    .event-link {
        order: 2;
        text-align: center;
        justify-content: center;
    }
}