:root {
    --gvv-background: #f7f8fb;
    --gvv-surface: #ffffff;
    --gvv-primary: #2c3e50;
    --gvv-accent: #e74c3c;
    --gvv-text: #333333;
    --gvv-border: #dddddd;
    --gvv-muted: #7f8c8d;
}
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--gvv-background);
    color: var(--gvv-text);
}
.container {
    display: flex;
    min-height: 100vh;
}
.sidebar {
    width: 260px;
    background-color: var(--gvv-surface);
    border-right: 1px solid var(--gvv-border);
    padding: 20px;
}
.logo {
    text-align: center;
    margin-bottom: 30px;
}
.logo-img {
    max-width: 100%;
    height: auto;
}
.logo-text {
    font-size: 1.2em;
    font-weight: bold;
    line-height: 1.2;
}
.logo-subtitle {
    font-size: 0.9em;
    color: var(--gvv-muted);
    margin-top: 10px;
}
.menu ul {
    list-style: none;
    padding: 0;
}
.menu li {
    margin-bottom: 10px;
}
.menu a {
    display: block;
    padding: 10px;
    text-decoration: none;
    color: var(--gvv-text);
    border-radius: 4px;
}
.menu a:hover,
.menu a.active {
    background-color: var(--gvv-accent);
    color: white;
}
.main-content {
    flex: 1;
    padding: 20px;
}
.page-header {
    margin-bottom: 30px;
}
.page-header h1 {
    margin-top: 0;
}
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}
.card {
    background-color: var(--gvv-surface);
    border: 1px solid var(--gvv-border);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
}
.card h3 {
    margin-top: 0;
    font-size: 0.9em;
    color: var(--gvv-muted);
}
.card .value {
    font-size: 2em;
    font-weight: bold;
    margin-top: 10px;
}
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}
.search-box input {
    padding: 10px;
    width: 250px;
    border: 1px solid var(--gvv-border);
    border-radius: 4px;
}
.filters button {
    padding: 10px 20px;
    background-color: var(--gvv-accent);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}
.filters button:hover {
    opacity: 0.9;
}
.reservations-table {
    width: 100%;
    border-collapse: collapse;
}
.reservations-table th,
.reservations-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--gvv-border);
}
.reservations-table th {
    background-color: var(--gvv-surface);
    font-weight: 600;
    position: sticky;
    top: 0;
}
.reservations-table tr:hover {
    background-color: #f1f1f1;
}
.status-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.9em;
    font-weight: 500;
    text-transform: capitalize;
}
.status-badge.pending {
    background-color: #fff3cd;
    color: #856404;
}
.status-badge.in_progress {
    background-color: #d1ecf1;
    color: #0c5460;
}
.status-badge.completed {
    background-color: #d4edda;
    color: #155724;
}
.ses-status {
    background-color: #e2e3e5;
    color: #383d41;
}
.action-btn {
    display: inline-block;
    padding: 6px 12px;
    background-color: var(--gvv-accent);
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-size: 0.9em;
}
.action-btn:hover {
    opacity: 0.9;
}
.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}
.detail-section {
    background-color: var(--gvv-surface);
    border: 1px solid var(--gvv-border);
    border-radius: 8px;
    padding: 15px;
}
.detail-section h3 {
    margin-top: 0;
    font-size: 0.9em;
    color: var(--gvv-muted);
    margin-bottom: 10px;
}
.detail-section p {
    margin: 0;
    font-size: 1.1em;
}
.detail-section.full-width {
    grid-column: 1 / -1;
}
.properties-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}
.property-card {
    background-color: var(--gvv-surface);
    border: 1px solid var(--gvv-border);
    border-radius: 8px;
    padding: 20px;
}
.property-card h3 {
    margin-top: 0;
}
.property-info p {
    margin: 5px 0;
}
@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--gvv-border);
    }
    .main-content {
        padding: 15px;
    }
    .logo {
        display: none;
    }
    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    .search-box input {
        width: 100%;
        margin-bottom: 10px;
    }
    .filters button {
        width: 100%;
    }
}