/* === SAP PMO Control Tower - Dark Theme === */

:root {
    --bg-primary: #0d1117;
    --bg-card: #161b22;
    --bg-card-hover: #1c2129;
    --border: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --accent-green: #3fb950;
    --accent-yellow: #d29922;
    --accent-orange: #db6d28;
    --accent-red: #f85149;
    --accent-blue: #58a6ff;
    --accent-purple: #bc8cff;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
    --radius: 8px;
    --transition: 0.2s ease;
}

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

body {
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

/* === Top Bar === */
.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--accent-blue);
    white-space: nowrap;
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.project-select {
    padding: 8px 12px;
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.875rem;
    cursor: pointer;
    min-width: 200px;
}

.project-select:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.btn {
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-primary {
    background: var(--accent-blue);
    color: #fff;
    border-color: var(--accent-blue);
}

.btn-primary:hover {
    background: #4c9aed;
}

.btn-icon {
    font-size: 1rem;
}

/* === Loading Overlay === */
.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(13, 17, 23, 0.85);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 16px;
    color: var(--text-secondary);
}

.loading-overlay.active {
    display: flex;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* === Toast === */
.toast-container {
    position: fixed;
    top: 64px;
    right: 24px;
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 12px 20px;
    border-radius: var(--radius);
    font-size: 0.875rem;
    color: #fff;
    animation: slideIn 0.3s ease;
    max-width: 400px;
    word-break: break-word;
}

.toast-error {
    background: var(--accent-red);
}

.toast-success {
    background: var(--accent-green);
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* === Dashboard Layout === */
.dashboard {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* === Cards === */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    transition: border-color var(--transition);
}

.card:hover {
    border-color: #484f58;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.card-header h2 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* === KPI Cards === */
.kpi-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.kpi-card {
    text-align: center;
    padding: 24px 16px;
}

.kpi-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.kpi-value {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.1;
    transition: color 0.4s ease;
}

.kpi-value-text {
    font-size: 1.5rem;
}

.kpi-sub {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 6px;
}

/* === Badge === */
.badge {
    background: var(--accent-red);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: 12px;
    min-width: 24px;
    text-align: center;
}

/* === Signals Feed === */
.signals-section {
    max-height: 420px;
    display: flex;
    flex-direction: column;
}

.signals-feed {
    overflow-y: auto;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 340px;
    padding-right: 4px;
}

.signals-feed::-webkit-scrollbar {
    width: 6px;
}

.signals-feed::-webkit-scrollbar-track {
    background: transparent;
}

.signals-feed::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

.signal-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 6px;
    transition: border-color var(--transition);
}

.signal-item:hover {
    border-color: #484f58;
}

.signal-severity {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 3px 10px;
    border-radius: 12px;
    white-space: nowrap;
    flex-shrink: 0;
    letter-spacing: 0.5px;
}

.severity-critical {
    background: rgba(248, 81, 73, 0.2);
    color: var(--accent-red);
    border: 1px solid rgba(248, 81, 73, 0.3);
}

.severity-high {
    background: rgba(219, 109, 40, 0.2);
    color: var(--accent-orange);
    border: 1px solid rgba(219, 109, 40, 0.3);
}

.severity-medium {
    background: rgba(210, 153, 34, 0.2);
    color: var(--accent-yellow);
    border: 1px solid rgba(210, 153, 34, 0.3);
}

.severity-low {
    background: rgba(88, 166, 255, 0.2);
    color: var(--accent-blue);
    border: 1px solid rgba(88, 166, 255, 0.3);
}

.signal-body {
    flex: 1;
    min-width: 0;
}

.signal-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.signal-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
    line-height: 1.4;
}

.signal-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.signal-category {
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 4px;
    background: rgba(188, 140, 255, 0.15);
    color: var(--accent-purple);
    border: 1px solid rgba(188, 140, 255, 0.2);
}

.signal-workstream {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.signal-metric {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.signal-actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
    align-self: center;
}

.signal-actions .btn {
    padding: 4px 10px;
    font-size: 0.75rem;
}

.btn-ack {
    background: transparent;
    color: var(--accent-yellow);
    border-color: var(--accent-yellow);
}

.btn-ack:hover {
    background: rgba(210, 153, 34, 0.15);
}

.btn-resolve {
    background: transparent;
    color: var(--accent-green);
    border-color: var(--accent-green);
}

.btn-resolve:hover {
    background: rgba(63, 185, 80, 0.15);
}

/* === Heatmap === */
.heatmap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
}

.heatmap-card {
    padding: 16px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg-primary);
    transition: border-color var(--transition);
}

.heatmap-card:hover {
    border-color: #484f58;
}

.heatmap-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.heatmap-workstream {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

.heatmap-pct {
    font-size: 0.85rem;
    font-weight: 700;
}

.heatmap-bar-track {
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 10px;
}

.heatmap-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.6s ease, background 0.4s ease;
}

.heatmap-stats {
    display: flex;
    gap: 12px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.heatmap-stat-value {
    font-weight: 600;
    color: var(--text-secondary);
}

/* === Charts === */
.two-col-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.chart-container {
    position: relative;
    height: 300px;
}

.chart-container-sm {
    height: 260px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chart-card-wide {
    grid-column: 1 / -1;
}

/* === Gauge === */
.gauge-card {
    display: flex;
    flex-direction: column;
}

.gauge-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.gauge {
    width: 200px;
    height: 100px;
    position: relative;
    overflow: hidden;
    border-radius: 100px 100px 0 0;
    background: var(--border);
}

.gauge-fill {
    position: absolute;
    top: 0;
    left: 0;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    clip: rect(0px, 200px, 200px, 0px);
    background: var(--accent-green);
    transform: rotate(0deg);
    transition: transform 1s ease, background 0.4s ease;
    transform-origin: center center;
}

.gauge-cover {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 160px;
    height: 80px;
    background: var(--bg-card);
    border-radius: 80px 80px 0 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.gauge-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.gauge-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.gauge-details {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-secondary);
    max-width: 250px;
}

/* === Empty State === */
.empty-state {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    padding: 20px;
}

/* === Responsive === */
@media (max-width: 1024px) {
    .two-col-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .top-bar {
        flex-direction: column;
        gap: 12px;
        padding: 12px 16px;
    }

    .top-bar-right {
        width: 100%;
        justify-content: flex-end;
    }

    .kpi-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .dashboard {
        padding: 16px;
    }

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

@media (max-width: 480px) {
    .kpi-row {
        grid-template-columns: 1fr;
    }

    .signal-item {
        flex-direction: column;
    }

    .signal-actions {
        align-self: flex-start;
    }
}