:root {
    --primary-color: #2563eb;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --bg-color: #f9fafb;
    --card-bg: #ffffff;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --border-color: #e5e7eb;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    background: linear-gradient(135deg, var(--primary-color), #1e40af);
    color: white;
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-lg);
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.header-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 15px;
}

.last-update {
    font-size: 0.95rem;
    opacity: 0.95;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-badge {
    font-size: 1.5rem;
    animation: pulse 2s ease-in-out infinite;
}

.status-badge.healthy {
    color: var(--success-color);
}

.status-badge.degraded {
    color: var(--warning-color);
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.section {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 12px;
    margin-bottom: 25px;
    box-shadow: var(--shadow);
}

.section h2 {
    font-size: 1.75rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.section-description {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.parking-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.parking-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    transition: transform 0.2s, box-shadow 0.2s, opacity 0.3s, max-height 0.3s;
    opacity: 1;
    max-height: 500px;
    overflow: hidden;
}

.parking-card.parking-card-hidden {
    display: none;
}

.parking-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.parking-card.high-availability {
    border-left: 5px solid var(--success-color);
}

.parking-card.medium-availability {
    border-left: 5px solid var(--warning-color);
}

.parking-card.low-availability {
    border-left: 5px solid var(--danger-color);
}

.parking-card h3 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.parking-stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.spots-info {
    font-size: 1.5rem;
    font-weight: bold;
}

.spots-info .free {
    color: var(--success-color);
}

.spots-info .total {
    color: var(--text-secondary);
    font-size: 1.2rem;
}

.occupancy-bar {
    width: 100%;
    height: 10px;
    background: var(--border-color);
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 8px;
}

.occupancy-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success-color), var(--primary-color));
    transition: width 0.3s ease;
}

.occupancy-fill.low {
    background: var(--danger-color);
}

.occupancy-fill.medium {
    background: var(--warning-color);
}

.occupancy-fill.high {
    background: var(--success-color);
}

.occupancy-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-align: right;
}

/* New prominent free spots styling */
.spots-info-prominent {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 15px;
}

.free-spots-main {
    display: flex;
    align-items: baseline;
    gap: 10px;
    flex-wrap: wrap;
}

.free-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--success-color);
    line-height: 1;
}

.free-label {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.total-capacity {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 400;
}

/* Trend indicator styling */
.trend-indicator {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 600;
}

.trend-indicator.trend-up {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.trend-indicator.trend-down {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
}

/* Secondary (less prominent) occupancy bar and text */
.occupancy-bar-secondary {
    width: 100%;
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 5px;
}

.occupancy-text-secondary {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-align: right;
    opacity: 0.8;
}

.additional-info {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.parking-toggle-container {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center;
    margin-top: 10px;
}

.parking-toggle-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
    box-shadow: var(--shadow);
}

.parking-toggle-btn:hover {
    background: #1e40af;
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.parking-toggle-btn:active {
    transform: translateY(0);
}

.parking-toggle-btn .toggle-icon {
    font-size: 0.85rem;
    transition: transform 0.3s;
}

.parking-toggle-btn.expanded .toggle-icon {
    transform: rotate(180deg);
}

.chart-container {
    position: relative;
    height: 400px;
    margin-top: 20px;
}

.chart-controls {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 15px;
}

.chart-controls label {
    font-weight: 600;
    color: var(--text-primary);
}

.chart-controls select {
    padding: 8px 12px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    background: white;
    color: var(--text-primary);
    font-size: 0.95rem;
    cursor: pointer;
    transition: border-color 0.2s;
}

.chart-controls select:hover {
    border-color: var(--primary-color);
}

.chart-controls select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.parking-selector {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.parking-selector label {
    font-size: 0.9rem;
}

.system-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.info-card {
    background: var(--bg-color);
    padding: 20px;
    border-radius: 8px;
    border: 2px solid var(--border-color);
}

.info-card h3 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.info-card p {
    margin: 8px 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.info-card strong {
    color: var(--text-primary);
}

.footer {
    text-align: center;
    padding: 30px 20px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer a {
    color: var(--primary-color);
    text-decoration: none;
}

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

.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

@media (max-width: 768px) {
    .header h1 {
        font-size: 1.8rem;
    }

    .header-info {
        flex-direction: column;
        align-items: flex-start;
    }

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

    .chart-container {
        height: 300px;
    }

    .chart-controls {
        flex-direction: column;
        align-items: flex-start;
    }

    .system-info {
        grid-template-columns: 1fr;
    }
}

.text-success {
    color: var(--success-color);
}

.text-warning {
    color: var(--warning-color);
}

.text-danger {
    color: var(--danger-color);
}

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

.back-link {
    color: white;
    text-decoration: none;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    transition: background 0.2s;
}

.back-link:hover {
    background: rgba(255, 255, 255, 0.3);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.stat-card {
    background: var(--bg-color);
    padding: 20px;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    text-align: center;
}

.stat-card h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
    font-weight: 600;
    text-transform: uppercase;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--text-primary);
}

.stat-value.success {
    color: var(--success-color);
}

.stat-value.error {
    color: var(--danger-color);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: 15px;
    background: var(--bg-color);
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.info-label {
    font-weight: 600;
    color: var(--text-secondary);
}

.info-value {
    font-weight: 500;
    color: var(--text-primary);
}

.info-value.success {
    color: var(--success-color);
}

.info-value.error {
    color: var(--danger-color);
}

.logs-controls {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 15px;
}

.logs-controls label {
    font-weight: 600;
    color: var(--text-primary);
}

.logs-controls select {
    padding: 8px 12px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    background: white;
    color: var(--text-primary);
    font-size: 0.95rem;
    cursor: pointer;
    transition: border-color 0.2s;
}

.logs-controls select:hover,
.logs-controls select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.refresh-btn {
    padding: 8px 16px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    transition: background 0.2s;
}

.refresh-btn:hover {
    background: #1e40af;
}

.logs-container {
    overflow-x: auto;
    margin-top: 20px;
}

.logs-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
}

.logs-table thead {
    background: var(--bg-color);
}

.logs-table th {
    padding: 12px 15px;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
}

.logs-table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.logs-table tbody tr:hover {
    background: var(--bg-color);
}

.logs-table tbody tr:last-child td {
    border-bottom: none;
}

.logs-table .loading,
.logs-table .no-data,
.logs-table .error {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

.logs-table .error {
    color: var(--danger-color);
}

.status-success {
    background: var(--success-color);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    display: inline-block;
}

.status-error {
    background: var(--danger-color);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    display: inline-block;
}

.error-cell {
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}