:root {
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --primary: #1e486d;
    --primary-light: #286090;
    --primary-hover: #163652;
    --accent: #0284c7;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --neutral: #94a3b8;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Navbar */
.navbar {
    background-color: var(--primary);
    color: #ffffff;
    padding: 0.75rem 1.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.logo-badge {
    background-color: #ffffff;
    color: var(--primary);
    font-weight: 800;
    font-size: 1.15rem;
    padding: 0.35rem 0.65rem;
    border-radius: 6px;
    letter-spacing: 0.5px;
}

.brand-text h1 {
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.2;
}

.brand-text .subtitle {
    font-size: 0.78rem;
    color: #cbd5e1;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.control-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.88rem;
}

.select-input {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.4rem 0.75rem;
    font-size: 0.88rem;
    color: var(--text-primary);
    outline: none;
    cursor: pointer;
}

.btn {
    padding: 0.45rem 0.85rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.15s ease-in-out;
}

.btn-secondary {
    background-color: #ffffff;
    color: var(--primary);
}

.btn-secondary:hover {
    background-color: #f1f5f9;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.btn-outline:hover {
    background-color: #f1f5f9;
    color: var(--text-primary);
}

.btn-outline-sm {
    padding: 0.3rem 0.6rem;
    font-size: 0.78rem;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-secondary);
    cursor: pointer;
}

.btn-outline-sm:hover {
    background: #f8fafc;
    border-color: #cbd5e1;
}

.btn-chip {
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-secondary);
    cursor: pointer;
}

.btn-chip.active {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}

/* KPI Ribbon */
.kpi-ribbon {
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
}

.kpi-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}

.kpi-card {
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.85rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.kpi-title {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.kpi-value-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
}

.kpi-val {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary);
}

.kpi-full {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--success);
}

.kpi-badge {
    font-size: 0.8rem;
    font-weight: 600;
    background: #e2e8f0;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    color: var(--text-secondary);
}

.kpi-caption {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.progress-bar-bg {
    width: 100%;
    height: 6px;
    background-color: #e2e8f0;
    border-radius: 3px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background-color: var(--success);
    border-radius: 3px;
    transition: width 0.4s ease;
}

/* Tab Navigation */
.tab-nav {
    background: #ffffff;
    border-bottom: 2px solid var(--border-color);
    padding: 0 1.5rem;
}

.tab-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    gap: 0.5rem;
}

.tab-btn {
    background: transparent;
    border: none;
    padding: 0.9rem 1.25rem;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.15s ease;
}

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

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* Main Container */
.main-container {
    max-width: 1400px;
    margin: 1.5rem auto;
    padding: 0 1.5rem;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* Table View */
.view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.table-actions {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.search-input {
    min-width: 320px;
    padding: 0.45rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.88rem;
    outline: none;
}

.search-input:focus {
    border-color: var(--accent);
}

.table-legend {
    display: flex;
    gap: 0.5rem;
}

.legend-badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
}

.badge-c {
    background-color: #dcfce7;
    color: #166534;
}

.badge-e {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-n {
    background-color: #f1f5f9;
    color: #64748b;
}

.table-wrapper {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow-x: auto;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.agsi-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    text-align: left;
}

.agsi-table th {
    background-color: #f1f5f9;
    color: var(--text-secondary);
    padding: 0.65rem 0.75rem;
    font-weight: 600;
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
}

.agsi-table th.col-num {
    text-align: right;
}

.agsi-table th.col-status {
    width: 45px;
    text-align: center;
}

.agsi-table td {
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.agsi-table td.col-num {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.agsi-table tr:hover {
    background-color: #f8fafc;
}

/* Tree Indentation & Row Levels */
.tree-level-0 {
    background-color: #f1f5f9;
    font-weight: 700;
}

.tree-level-1 {
    font-weight: 600;
}

.tree-level-2 {
    color: #334155;
}

.tree-level-3 {
    color: #475569;
    font-size: 0.82rem;
}

.tree-node-cell {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.toggle-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border-radius: 3px;
    background-color: #cbd5e1;
    color: #1e293b;
    font-size: 11px;
    cursor: pointer;
    user-select: none;
    transition: transform 0.15s ease;
}

.toggle-icon.expanded {
    background-color: var(--primary);
    color: #ffffff;
}

.facility-type-tag {
    font-size: 0.68rem;
    font-weight: 600;
    padding: 0.1rem 0.35rem;
    background: #e2e8f0;
    color: #475569;
    border-radius: 3px;
    margin-left: 0.35rem;
}

/* Fullness Badges */
.full-pill {
    display: inline-block;
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.8rem;
    min-width: 52px;
    text-align: right;
}

.full-level-red { background: #fee2e2; color: #991b1b; }
.full-level-orange { background: #ffedd5; color: #9a3412; }
.full-level-yellow { background: #fef9c3; color: #854d0e; }
.full-level-lime { background: #ecfccb; color: #3f6212; }
.full-level-green { background: #dcfce7; color: #166534; }
.full-level-emerald { background: #d1fae5; color: #065f46; }

/* Trend Indicators */
.trend-positive {
    color: #16a34a;
    font-weight: 600;
}

.trend-negative {
    color: #dc2626;
    font-weight: 600;
}

.trend-neutral {
    color: #64748b;
}

/* D3 Chart Layout */
.chart-control-panel {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.85rem 1.25rem;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.chart-select-group {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.9rem;
    font-weight: 600;
}

.range-btn-group, .legend-controls {
    display: flex;
    gap: 0.4rem;
}

.chart-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 1.25rem;
    align-items: start;
}

.chart-main {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.25rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.d3-container {
    width: 100%;
    height: 520px;
    position: relative;
}

.chart-footer-note {
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.78rem;
    color: var(--text-muted);
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.note-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.line-target-90 {
    width: 18px;
    height: 2px;
    background-color: #f59e0b;
    display: inline-block;
    border-top: 2px dashed #f59e0b;
}

.line-target-100 {
    width: 18px;
    height: 2px;
    background-color: #ef4444;
    display: inline-block;
    border-top: 2px solid #ef4444;
}

/* Chart Sidebar */
.chart-sidebar {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.sidebar-header {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h3 {
    font-size: 0.95rem;
    font-weight: 700;
}

.search-input-sm {
    width: 100%;
    padding: 0.35rem 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.8rem;
}

.facility-legend-list {
    max-height: 470px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.facility-legend-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.4rem 0.6rem;
    border-radius: 6px;
    border: 1px solid transparent;
    cursor: pointer;
    font-size: 0.82rem;
    transition: all 0.15s ease;
}

.facility-legend-item:hover {
    background: #f8fafc;
    border-color: #cbd5e1;
}

.facility-legend-item.highlighted {
    background: #f1f5f9;
    border-color: var(--accent);
    font-weight: 600;
}

.facility-legend-item.dimmed {
    opacity: 0.35;
}

.legend-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    overflow: hidden;
}

.color-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.facility-title {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 180px;
}

.legend-val {
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    font-size: 0.8rem;
}

/* D3 Tooltip */
.d3-tooltip {
    position: absolute;
    padding: 0.65rem 0.85rem;
    background: rgba(15, 23, 42, 0.92);
    color: #ffffff;
    border-radius: 6px;
    font-size: 0.8rem;
    pointer-events: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    z-index: 100;
    max-width: 280px;
    backdrop-filter: blur(4px);
}

.d3-tooltip-title {
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 0.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding-bottom: 0.25rem;
}

.d3-tooltip-row {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 0.2rem;
}

.d3-tooltip-val {
    font-weight: 700;
    color: #38bdf8;
}

/* Footer */
.app-footer {
    background: #ffffff;
    border-top: 1px solid var(--border-color);
    padding: 1.5rem;
    margin-top: 3rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.footer-container a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

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

/* Responsive */
@media (max-width: 1024px) {
    .chart-layout {
        grid-template-columns: 1fr;
    }
    .facility-legend-list {
        max-height: 250px;
    }
}

/* Imprint / Impressum View */
.imprint-container {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.imprint-header {
    margin-bottom: 0.5rem;
}

.imprint-header h1 {
    font-size: 1.75rem;
    color: var(--primary);
    font-weight: 800;
    margin-bottom: 0.25rem;
}

.imprint-header .subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.imprint-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.75rem 2rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.imprint-card h2 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.imprint-card h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 1rem;
    margin-bottom: 0.4rem;
}

.imprint-card p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.6;
    margin-bottom: 0.75rem;
}

.imprint-card p:last-child {
    margin-bottom: 0;
}

.imprint-card ul {
    margin-left: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.6;
}

.imprint-card a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
}

.imprint-card a:hover {
    text-decoration: underline;
    color: var(--primary);
}

.imprint-badge {
    display: inline-block;
    background: #e0f2fe;
    color: #0369a1;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    margin-left: 0.5rem;
    vertical-align: middle;
}

.imprint-meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
    margin-top: 0.75rem;
    margin-bottom: 0.75rem;
}

.imprint-meta-box {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.85rem 1rem;
}

.imprint-meta-box .meta-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    margin-bottom: 0.25rem;
}

.imprint-meta-box .meta-val {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-primary);
}