:root {
    --sidebar-width: 240px;
}

body {
    min-height: 100vh;
    background: #f4f6f9;
}

.sidebar {
    width: var(--sidebar-width);
    min-height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    overflow-y: auto;
}

.sidebar .nav-link {
    padding: 0.6rem 1rem;
    border-radius: 0.375rem;
    margin: 2px 8px;
    transition: background 0.15s;
}

.sidebar .nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
}

.sidebar .nav-link.active {
    background: rgba(255, 255, 255, 0.15);
    font-weight: 600;
}

.sidebar .nav-link i {
    width: 24px;
    text-align: center;
    margin-right: 8px;
}

.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    padding: 1.5rem;
}

.status-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    display: inline-block;
    border: 1px solid rgba(0, 0, 0, 0.2);
}

.busylight-card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: box-shadow 0.2s;
}

.busylight-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.segment-bar {
    height: 40px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    padding: 0 12px;
    color: #333;
    font-size: 0.9rem;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.segment-bar.empty {
    background: repeating-linear-gradient(
        45deg,
        #f0f0f0,
        #f0f0f0 5px,
        #e8e8e8 5px,
        #e8e8e8 10px
    );
    color: #999;
    font-style: italic;
}

.color-preview {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    border: 2px solid rgba(0, 0, 0, 0.15);
    cursor: pointer;
}

.table th {
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #6c757d;
}

.badge-online {
    background: #28a745;
}

.badge-offline {
    background: #6c757d;
}

.log-table {
    font-size: 0.85rem;
}

.log-table td {
    vertical-align: middle;
}

/* Compact dashboard */
.seg-compact {
    padding: 4px 8px;
    border-radius: 4px;
    margin-bottom: 3px;
    font-size: 0.8rem;
}

.seg-compact .seg-name {
    display: block;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.78rem;
}

.seg-compact .seg-badges {
    display: flex;
    gap: 3px;
    flex-wrap: wrap;
    margin-top: 2px;
}

.seg-compact.seg-empty {
    background: #f8f8f8;
    border-left: 3px solid #ddd;
}

.badge-sm {
    font-size: 0.65rem;
    padding: 1px 5px;
    border-radius: 3px;
    font-weight: 500;
    color: #fff;
    display: inline-block;
    line-height: 1.4;
}

@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        min-height: auto;
        position: relative;
    }
    .main-content {
        margin-left: 0;
    }
}