/* ============================================================
   SMART BESS OPTIMIZER — Design System
   Industrial control-room aesthetic, dark-first, fully themed.
   ============================================================ */

:root {
    /* ---------- DARK (default) ---------- */
    --sb-bg-1: #0a0e17;
    --sb-bg-2: #0e1320;

    --sb-surface: rgba(20, 26, 41, 0.72);
    --sb-surface-solid: #141a29;
    --sb-surface-raised: rgba(28, 36, 56, 0.85);
    --sb-surface-glass: rgba(22, 28, 44, 0.55);

    --sb-border: rgba(255, 255, 255, 0.08);
    --sb-border-strong: rgba(255, 255, 255, 0.16);

    --sb-text: #e6ebf5;
    --sb-text-muted: #9aa4bb;
    --sb-text-dim: #6b7689;

    --sb-primary: #38bdf8;
    --sb-primary-strong: #0ea5e9;
    --sb-primary-glow: rgba(56, 189, 248, 0.35);

    --sb-pv: #fbbf24;
    --sb-pv-glow: rgba(251, 191, 36, 0.35);
    --sb-load: #38bdf8;
    --sb-load-glow: rgba(56, 189, 248, 0.30);
    --sb-bess-charge: #34d399;
    --sb-bess-charge-glow: rgba(52, 211, 153, 0.35);
    --sb-bess-discharge: #fb923c;
    --sb-bess-discharge-glow: rgba(251, 146, 60, 0.35);
    --sb-grid-import: #a78bfa;
    --sb-grid-import-glow: rgba(167, 139, 250, 0.30);
    --sb-grid-export: #f87171;
    --sb-grid-export-glow: rgba(248, 113, 113, 0.40);

    --sb-success: #10b981;
    --sb-warning: #f59e0b;
    --sb-critical: #ef4444;
    --sb-info: #38bdf8;

    --sb-radius-sm: 6px;
    --sb-radius-md: 10px;
    --sb-radius-lg: 14px;
    --sb-radius-xl: 20px;

    --sb-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --sb-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35), 0 1px 2px rgba(0, 0, 0, 0.5);
    --sb-shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.45), 0 2px 4px rgba(0, 0, 0, 0.4);
    --sb-ring-focus: 0 0 0 3px rgba(56, 189, 248, 0.45);

    --sb-font-ui: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    --sb-font-mono: 'JetBrains Mono', 'Consolas', 'SFMono-Regular', ui-monospace, monospace;

    --sb-ease: cubic-bezier(0.16, 1, 0.3, 1);
    --sb-dur-fast: 120ms;
    --sb-dur-base: 220ms;
}

[data-theme='light'] {
    --sb-bg-1: #f5f7fb;
    --sb-bg-2: #ecf0f7;

    --sb-surface: rgba(255, 255, 255, 0.92);
    --sb-surface-solid: #ffffff;
    --sb-surface-raised: rgba(255, 255, 255, 0.98);
    --sb-surface-glass: rgba(255, 255, 255, 0.72);

    --sb-border: rgba(15, 23, 42, 0.08);
    --sb-border-strong: rgba(15, 23, 42, 0.18);

    --sb-text: #0f172a;
    --sb-text-muted: #475569;
    --sb-text-dim: #64748b;

    --sb-primary: #0284c7;
    --sb-primary-strong: #0369a1;
    --sb-primary-glow: rgba(2, 132, 199, 0.25);

    --sb-pv: #d97706;
    --sb-pv-glow: rgba(217, 119, 6, 0.30);
    --sb-load: #0284c7;
    --sb-load-glow: rgba(2, 132, 199, 0.25);
    --sb-bess-charge: #059669;
    --sb-bess-charge-glow: rgba(5, 150, 105, 0.30);
    --sb-bess-discharge: #ea580c;
    --sb-bess-discharge-glow: rgba(234, 88, 12, 0.30);
    --sb-grid-import: #7c3aed;
    --sb-grid-import-glow: rgba(124, 58, 237, 0.25);
    --sb-grid-export: #dc2626;
    --sb-grid-export-glow: rgba(220, 38, 38, 0.30);

    --sb-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
    --sb-shadow-md: 0 4px 16px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
    --sb-shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.12), 0 2px 4px rgba(15, 23, 42, 0.06);
    --sb-ring-focus: 0 0 0 3px rgba(2, 132, 199, 0.35);
}

/* ---------- BASE ---------- */
html, body {
    background:
        radial-gradient(1200px 800px at 80% -10%, var(--sb-primary-glow), transparent 60%),
        radial-gradient(900px 700px at 0% 100%, rgba(129, 140, 248, 0.06), transparent 60%),
        linear-gradient(180deg, var(--sb-bg-1), var(--sb-bg-2));
    background-attachment: fixed;
    font-family: var(--sb-font-ui);
    color: var(--sb-text);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

[data-theme='light'] html, [data-theme='light'] body {
    background:
        radial-gradient(1200px 800px at 80% -10%, rgba(2, 132, 199, 0.06), transparent 60%),
        radial-gradient(900px 700px at 0% 100%, rgba(124, 58, 237, 0.04), transparent 60%),
        linear-gradient(180deg, var(--sb-bg-1), var(--sb-bg-2));
}

h1:focus { outline: none; }

/* ---------- MudBlazor surface bridge ---------- */
.mud-appbar.mud-appbar-fixed-top {
    background: linear-gradient(180deg, var(--sb-surface-raised) 0%, var(--sb-surface) 100%) !important;
    backdrop-filter: blur(16px) saturate(150%);
    -webkit-backdrop-filter: blur(16px) saturate(150%);
    border-bottom: 1px solid var(--sb-border);
    box-shadow: var(--sb-shadow-sm) !important;
    color: var(--sb-text) !important;
}

.mud-drawer {
    background: var(--sb-surface-glass) !important;
    backdrop-filter: blur(20px) saturate(140%);
    -webkit-backdrop-filter: blur(20px) saturate(140%);
    border-right: 1px solid var(--sb-border) !important;
}

.mud-nav-link {
    border-radius: var(--sb-radius-md);
    margin: 2px 8px;
    transition: background var(--sb-dur-fast) var(--sb-ease), color var(--sb-dur-fast) var(--sb-ease);
}

.mud-nav-link:hover {
    background: var(--sb-border) !important;
}

.mud-nav-link.active {
    background: color-mix(in srgb, var(--sb-primary) 14%, transparent) !important;
    color: var(--sb-primary) !important;
}

.mud-nav-link.active .mud-icon-root {
    color: var(--sb-primary) !important;
}

/* ---------- Card primitives ---------- */
.sb-card {
    position: relative;
    background: var(--sb-surface);
    border: 1px solid var(--sb-border);
    border-radius: var(--sb-radius-lg);
    backdrop-filter: blur(16px) saturate(140%);
    -webkit-backdrop-filter: blur(16px) saturate(140%);
    box-shadow: var(--sb-shadow-md);
    transition: border-color var(--sb-dur-base) var(--sb-ease),
                box-shadow var(--sb-dur-base) var(--sb-ease);
}

.sb-card-pad { padding: 20px 22px; }

.sb-card-interactive { cursor: pointer; outline: none; }
.sb-card-interactive:hover {
    border-color: var(--sb-border-strong);
    box-shadow: var(--sb-shadow-lg);
}
.sb-card-interactive:focus-visible {
    box-shadow: var(--sb-shadow-lg), var(--sb-ring-focus);
    border-color: var(--sb-border-strong);
}

/* ---------- KPI ---------- */
.kpi-card {
    position: relative;
    padding: 20px 22px 18px;
    border-radius: var(--sb-radius-lg);
    background: var(--sb-surface);
    border: 1px solid var(--sb-border);
    backdrop-filter: blur(16px) saturate(140%);
    -webkit-backdrop-filter: blur(16px) saturate(140%);
    box-shadow: var(--sb-shadow-md);
    overflow: hidden;
    transition: border-color var(--sb-dur-base) var(--sb-ease),
                box-shadow var(--sb-dur-base) var(--sb-ease);
}

.kpi-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(120% 70% at 100% 0%, var(--accent-glow, transparent), transparent 60%);
    pointer-events: none;
    opacity: 0.55;
    transition: opacity var(--sb-dur-base) var(--sb-ease);
}

.kpi-card::after {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 3px;
    background: var(--accent, var(--sb-primary));
    box-shadow: 0 0 14px var(--accent-glow, var(--sb-primary-glow));
}

.kpi-card:hover { border-color: var(--sb-border-strong); box-shadow: var(--sb-shadow-lg); }
.kpi-card:hover::before { opacity: 1; }

.kpi-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.kpi-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-transform: uppercase;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--sb-text-muted);
}

.kpi-label .kpi-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--accent, var(--sb-primary));
    box-shadow: 0 0 8px var(--accent-glow, var(--sb-primary-glow));
}

.kpi-value {
    font-family: var(--sb-font-mono);
    font-size: 2.4rem;
    font-weight: 600;
    line-height: 1.05;
    letter-spacing: -0.02em;
    color: var(--sb-text);
    font-variant-numeric: tabular-nums;
}

.kpi-unit {
    font-family: var(--sb-font-ui);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--sb-text-muted);
    margin-left: 6px;
}

.kpi-sub {
    font-size: 0.75rem;
    color: var(--sb-text-dim);
    margin-top: 8px;
    line-height: 1.4;
}

.kpi-pv { --accent: var(--sb-pv); --accent-glow: var(--sb-pv-glow); }
.kpi-load { --accent: var(--sb-load); --accent-glow: var(--sb-load-glow); }
.kpi-bess-charge { --accent: var(--sb-bess-charge); --accent-glow: var(--sb-bess-charge-glow); }
.kpi-bess-discharge { --accent: var(--sb-bess-discharge); --accent-glow: var(--sb-bess-discharge-glow); }
.kpi-pcc-import { --accent: var(--sb-grid-import); --accent-glow: var(--sb-grid-import-glow); }
.kpi-pcc-export { --accent: var(--sb-grid-export); --accent-glow: var(--sb-grid-export-glow); }

/* Slim progress */
.sb-progress {
    height: 4px;
    border-radius: 999px;
    background: var(--sb-border);
    overflow: hidden;
    margin-top: 14px;
    position: relative;
}

.sb-progress > span {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, var(--accent, var(--sb-primary)), color-mix(in srgb, var(--accent, var(--sb-primary)) 50%, white));
    box-shadow: 0 0 12px var(--accent-glow, var(--sb-primary-glow));
    border-radius: inherit;
    transition: width 500ms var(--sb-ease);
}

/* ---------- Power-flow SVG ---------- */
.flow-svg {
    width: 100%;
    height: 340px;
    display: block;
}

.flow-residual-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 8px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--sb-warning) 16%, transparent);
    border: 1px solid color-mix(in srgb, var(--sb-warning) 40%, transparent);
    color: color-mix(in srgb, var(--sb-warning) 90%, white);
    font-size: 0.72rem;
    font-weight: 600;
    font-family: var(--sb-font-mono);
}

.flow-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 12px;
    font-size: 0.72rem;
    color: var(--sb-text-muted);
}

.flow-legend-item {
    display: inline-flex; align-items: center; gap: 6px;
}

.flow-legend-swatch {
    width: 14px; height: 4px; border-radius: 2px;
    background: var(--swatch, var(--sb-primary));
    box-shadow: 0 0 8px var(--swatch, var(--sb-primary));
}

/* ---------- Battery hero ---------- */
.battery-stage {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px 0 16px;
}

.battery-hero {
    position: relative;
    width: 140px;
    height: 280px;
    border-radius: 20px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
    border: 2px solid var(--sb-border-strong);
    padding: 8px;
    box-shadow: var(--sb-shadow-md), inset 0 1px 0 rgba(255, 255, 255, 0.08);
    overflow: hidden;
}

[data-theme='light'] .battery-hero {
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.02), rgba(15, 23, 42, 0.01));
}

.battery-hero::before {
    content: '';
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    width: 56px;
    height: 14px;
    border-radius: 5px 5px 0 0;
    background: var(--sb-border-strong);
}

.battery-fill {
    position: absolute;
    left: 8px;
    right: 8px;
    bottom: 8px;
    border-radius: 12px;
    transition: height 600ms var(--sb-ease), background 400ms var(--sb-ease), box-shadow 400ms var(--sb-ease);
    background: linear-gradient(180deg, var(--soc-color, var(--sb-bess-charge)) 0%, color-mix(in srgb, var(--soc-color, var(--sb-bess-charge)) 50%, transparent) 100%);
    box-shadow: 0 0 30px var(--soc-color, var(--sb-bess-charge));
}

.battery-pct {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-family: var(--sb-font-mono);
    color: var(--sb-text);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    font-variant-numeric: tabular-nums;
}

.battery-pct-value {
    font-size: 2.4rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1;
}

.battery-pct-unit {
    font-size: 1rem;
    font-weight: 500;
    color: var(--sb-text-muted);
    margin-top: 4px;
}

.battery-tick {
    position: absolute;
    right: -68px;
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: var(--sb-font-mono);
    font-size: 0.68rem;
    color: var(--sb-text-dim);
    white-space: nowrap;
}

.battery-tick::before {
    content: '';
    display: inline-block;
    width: 26px;
    height: 1px;
    background: var(--sb-border-strong);
}

/* ---------- Scenario pills ---------- */
.scenario-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 4px;
}

.scenario-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 30px;
    padding: 0 4px;
    border-radius: 8px;
    font-family: var(--sb-font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    border: 1px solid transparent;
    cursor: default;
    transition: transform var(--sb-dur-fast) var(--sb-ease),
                box-shadow var(--sb-dur-fast) var(--sb-ease),
                background var(--sb-dur-fast) var(--sb-ease);
}

.pill-Idle { background: rgba(148, 163, 184, 0.10); color: #cbd5e1; border-color: rgba(148, 163, 184, 0.22); }
[data-theme='light'] .pill-Idle { color: #475569; }
.pill-Charge { background: color-mix(in srgb, var(--sb-bess-charge) 16%, transparent); color: var(--sb-bess-charge); border-color: color-mix(in srgb, var(--sb-bess-charge) 45%, transparent); }
.pill-Discharge { background: color-mix(in srgb, var(--sb-bess-discharge) 16%, transparent); color: var(--sb-bess-discharge); border-color: color-mix(in srgb, var(--sb-bess-discharge) 45%, transparent); }
.pill-PvDynamic { background: color-mix(in srgb, var(--sb-pv) 16%, transparent); color: var(--sb-pv); border-color: color-mix(in srgb, var(--sb-pv) 45%, transparent); }
.pill-DischargeEqualDistribution { background: color-mix(in srgb, var(--sb-grid-export) 16%, transparent); color: var(--sb-grid-export); border-color: color-mix(in srgb, var(--sb-grid-export) 45%, transparent); }
.pill-GridChargeWithLimit { background: color-mix(in srgb, var(--sb-grid-import) 16%, transparent); color: var(--sb-grid-import); border-color: color-mix(in srgb, var(--sb-grid-import) 45%, transparent); }

.pill-current {
    transform: scale(1.08);
    box-shadow: 0 0 0 2px var(--sb-primary), 0 0 18px var(--sb-primary-glow);
    z-index: 1;
    position: relative;
}

/* ---------- Connection status ---------- */
.sb-conn-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
    line-height: 1;
}

.sb-conn-chip .sb-conn-dot {
    width: 8px; height: 8px; border-radius: 50%;
}

.sb-conn-live {
    background: color-mix(in srgb, var(--sb-success) 14%, transparent);
    border: 1px solid color-mix(in srgb, var(--sb-success) 40%, transparent);
    color: color-mix(in srgb, var(--sb-success) 88%, white);
}
.sb-conn-live .sb-conn-dot { background: var(--sb-success); box-shadow: 0 0 8px var(--sb-success); }

.sb-conn-degraded {
    background: color-mix(in srgb, var(--sb-warning) 14%, transparent);
    border: 1px solid color-mix(in srgb, var(--sb-warning) 40%, transparent);
    color: color-mix(in srgb, var(--sb-warning) 88%, white);
}
.sb-conn-degraded .sb-conn-dot { background: var(--sb-warning); box-shadow: 0 0 8px var(--sb-warning); }

.sb-conn-error {
    background: color-mix(in srgb, var(--sb-critical) 16%, transparent);
    border: 1px solid color-mix(in srgb, var(--sb-critical) 50%, transparent);
    color: color-mix(in srgb, var(--sb-critical) 88%, white);
}
.sb-conn-error .sb-conn-dot { background: var(--sb-critical); box-shadow: 0 0 10px var(--sb-critical); }

/* alarm pulse, only outside reduced-motion */
.sb-alarm-pulse {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--sb-critical) 16%, transparent);
    border: 1px solid color-mix(in srgb, var(--sb-critical) 50%, transparent);
    color: color-mix(in srgb, var(--sb-critical) 88%, white);
    font-size: 0.72rem;
    font-weight: 600;
}

.sb-alarm-pulse .sb-conn-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--sb-critical);
    animation: sb-ring-pulse 1.8s ease-out infinite;
}

@keyframes sb-ring-pulse {
    0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.55); }
    70% { box-shadow: 0 0 0 10px rgba(239, 68, 68, 0); }
    100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

/* ---------- Emergency stop ---------- */
.sb-emergency-zone {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 6px 8px 6px 14px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.10), rgba(239, 68, 68, 0.02));
    border: 1px solid rgba(239, 68, 68, 0.32);
    box-shadow: inset 0 0 0 1px rgba(239, 68, 68, 0.06);
}

.sb-emergency-zone::before {
    content: 'ACİL';
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--sb-critical);
}

.sb-btn-estop {
    background: linear-gradient(135deg, #dc2626, #991b1b) !important;
    color: #fff !important;
    font-weight: 700 !important;
    letter-spacing: 0.08em;
    box-shadow: 0 4px 16px rgba(220, 38, 38, 0.40), inset 0 1px 0 rgba(255, 255, 255, 0.18) !important;
    border: 1px solid rgba(255, 255, 255, 0.10) !important;
    transition: filter var(--sb-dur-fast) var(--sb-ease), box-shadow var(--sb-dur-fast) var(--sb-ease);
}

.sb-btn-estop:hover:not(:disabled) {
    box-shadow: 0 6px 24px rgba(220, 38, 38, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.25) !important;
    filter: brightness(1.08);
}

.sb-btn-estop:disabled {
    filter: grayscale(0.4) brightness(0.7);
    opacity: 0.6;
}

/* ---------- Section + page chrome ---------- */
.sb-page-container {
    max-width: 1920px;
    margin: 0 auto;
    padding: 20px 24px 80px;
}

.sb-section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--sb-text-muted);
    margin-bottom: 14px;
}

.sb-section-title::before {
    content: '';
    display: inline-block;
    width: 3px;
    height: 14px;
    border-radius: 2px;
    background: var(--sb-primary);
    box-shadow: 0 0 8px var(--sb-primary-glow);
}

.sb-h1 {
    font-size: 1.55rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--sb-text);
    line-height: 1.1;
}

.sb-subtitle {
    font-size: 0.78rem;
    color: var(--sb-text-muted);
    font-family: var(--sb-font-mono);
}

/* ---------- Data table refinement ---------- */
.sb-data-table .mud-table {
    background: transparent !important;
}
.sb-data-table .mud-table-head .mud-table-cell {
    text-transform: uppercase;
    font-size: 0.66rem;
    letter-spacing: 0.12em;
    color: var(--sb-text-muted) !important;
    font-weight: 700;
    border-bottom: 1px solid var(--sb-border) !important;
    background: transparent !important;
}
.sb-data-table .mud-table-cell {
    border-bottom: 1px solid var(--sb-border) !important;
    font-variant-numeric: tabular-nums;
    color: var(--sb-text);
}
.sb-data-table .mud-table-row:hover .mud-table-cell {
    background: rgba(56, 189, 248, 0.04) !important;
}

/* ---------- Blazor error UI ---------- */
.valid.modified:not([type=checkbox]) { outline: 1px solid #26b050; }
.invalid { outline: 1px solid var(--sb-critical); }
.validation-message { color: var(--sb-critical); }

#blazor-error-ui {
    background: linear-gradient(135deg, #7f1d1d, #450a0a);
    color: #fff;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-family: var(--sb-font-ui);
    padding: 12px 16px;
}
#blazor-error-ui a.reload { color: #fff; text-decoration: underline; margin-left: 12px; }
#blazor-error-ui .dismiss {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px; height: 24px;
    margin-left: 8px;
    cursor: pointer;
    border-radius: 6px;
    transition: background var(--sb-dur-fast) var(--sb-ease);
}
#blazor-error-ui .dismiss:hover { background: rgba(255, 255, 255, 0.12); }

.blazor-error-boundary {
    background: linear-gradient(135deg, #7f1d1d, #b91c1c);
    color: #fff;
    padding: 1rem 1rem 1rem 1rem;
    border-radius: var(--sb-radius-md);
    font-family: var(--sb-font-ui);
}
.blazor-error-boundary::after { content: "Bir hata oluştu. Lütfen sayfayı yenileyin."; }

.darker-border-checkbox.form-check-input { border-color: #929292; }

/* ---------- Misc helpers ---------- */
.sb-data {
    font-family: var(--sb-font-mono);
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.01em;
}
.sb-muted { color: var(--sb-text-muted); }
.sb-dim { color: var(--sb-text-dim); }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--sb-border-strong); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--sb-text-dim); }

/* ============================================================
   Page-level patterns
   ============================================================ */

/* Page header */
.sb-page-header {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    justify-content: space-between;
    padding: 18px 22px !important;
    margin-bottom: 16px;
}

.sb-page-header-main {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

.sb-page-header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.sb-page-header-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, color-mix(in srgb, var(--icon-color, var(--sb-primary)) 22%, transparent), color-mix(in srgb, var(--icon-color, var(--sb-primary)) 8%, transparent));
    border: 1px solid color-mix(in srgb, var(--icon-color, var(--sb-primary)) 35%, transparent);
    color: var(--icon-color, var(--sb-primary));
    flex-shrink: 0;
}

.sb-page-subtitle {
    font-size: 0.85rem;
    color: var(--sb-text-muted);
    margin-top: 2px;
    max-width: 70ch;
    line-height: 1.45;
}

/* Filter bar */
.sb-filter-bar {
    padding: 14px 18px !important;
    margin-bottom: 16px;
}

.sb-filter-bar .mud-input-control { background: transparent; }

/* Tabs */
.sb-tabs .mud-tabs-tabbar {
    background: transparent !important;
    border-bottom: 1px solid var(--sb-border);
}
.sb-tabs .mud-tab {
    text-transform: none !important;
    letter-spacing: 0 !important;
    font-weight: 500 !important;
    color: var(--sb-text-muted) !important;
    min-height: 44px !important;
}
.sb-tabs .mud-tab.mud-tab-active {
    color: var(--sb-primary) !important;
}
.sb-tabs .mud-tabs-tabbar-slider {
    background: var(--sb-primary) !important;
    height: 2px !important;
}

/* Generic status chips (active/inactive/etc.) */
.sb-status-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
    line-height: 1;
    letter-spacing: 0.02em;
}
.sb-status-active {
    background: color-mix(in srgb, var(--sb-success) 14%, transparent);
    border: 1px solid color-mix(in srgb, var(--sb-success) 40%, transparent);
    color: color-mix(in srgb, var(--sb-success) 90%, white);
}
.sb-status-inactive {
    background: rgba(148, 163, 184, 0.10);
    border: 1px solid rgba(148, 163, 184, 0.30);
    color: var(--sb-text-muted);
}
.sb-status-warn {
    background: color-mix(in srgb, var(--sb-warning) 14%, transparent);
    border: 1px solid color-mix(in srgb, var(--sb-warning) 40%, transparent);
    color: color-mix(in srgb, var(--sb-warning) 90%, white);
}
.sb-status-error {
    background: color-mix(in srgb, var(--sb-critical) 16%, transparent);
    border: 1px solid color-mix(in srgb, var(--sb-critical) 45%, transparent);
    color: color-mix(in srgb, var(--sb-critical) 88%, white);
}

/* Code inline */
.sb-code {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--sb-border);
    font-family: var(--sb-font-mono);
    font-size: 0.78rem;
    color: var(--sb-text);
    letter-spacing: -0.01em;
}
[data-theme='light'] .sb-code { background: rgba(15, 23, 42, 0.04); }

/* Inline metric grid (PCS, hardware specs) */
.sb-metric-grid {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 6px 14px;
    font-size: 0.85rem;
}
.sb-metric-grid .sb-metric-label {
    color: var(--sb-text-muted);
}
.sb-metric-grid .sb-metric-value {
    text-align: right;
    font-family: var(--sb-font-mono);
    font-variant-numeric: tabular-nums;
    font-weight: 500;
    color: var(--sb-text);
    letter-spacing: -0.01em;
}

/* Section divider header */
.sb-subsection {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.66rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-weight: 600;
    color: var(--sb-text-muted);
    margin: 14px 0 8px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--sb-border);
}

/* PCS card */
.pcs-card {
    position: relative;
    padding: 18px 20px;
    border-radius: var(--sb-radius-lg);
    background: var(--sb-surface);
    border: 1px solid var(--sb-border);
    backdrop-filter: blur(16px) saturate(140%);
    -webkit-backdrop-filter: blur(16px) saturate(140%);
    box-shadow: var(--sb-shadow-md);
    overflow: hidden;
    transition: border-color var(--sb-dur-base) var(--sb-ease),
                box-shadow var(--sb-dur-base) var(--sb-ease);
}
.pcs-card::after {
    content: '';
    position: absolute;
    left: 0; right: 0; top: 0;
    height: 3px;
    background: var(--accent, var(--sb-primary));
    box-shadow: 0 0 12px var(--accent-glow, var(--sb-primary-glow));
}
.pcs-card:hover { border-color: var(--sb-border-strong); box-shadow: var(--sb-shadow-lg); }
.pcs-online { --accent: var(--sb-success); --accent-glow: rgba(16, 185, 129, 0.35); }
.pcs-offline { --accent: var(--sb-critical); --accent-glow: rgba(239, 68, 68, 0.4); }

/* Temperature bar */
.temp-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 4px;
}
.temp-row .temp-label {
    min-width: 64px;
    font-size: 0.78rem;
    color: var(--sb-text-muted);
}
.temp-fill {
    flex: 1;
    height: 6px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 3px;
    overflow: hidden;
}
[data-theme='light'] .temp-fill { background: rgba(15, 23, 42, 0.06); }
.temp-fill::after {
    content: '';
    display: block;
    height: 100%;
    width: var(--w, 0%);
    background: var(--c, var(--sb-success));
    box-shadow: 0 0 8px var(--c, var(--sb-success));
    transition: width 0.45s var(--sb-ease);
}
.temp-value {
    min-width: 64px;
    text-align: right;
    font-family: var(--sb-font-mono);
    font-variant-numeric: tabular-nums;
    font-weight: 500;
    font-size: 0.85rem;
}

/* Period card (financial) */
.period-card {
    padding: 16px 18px;
    border-radius: var(--sb-radius-lg);
    background: var(--sb-surface);
    border: 1px solid var(--sb-border);
    box-shadow: var(--sb-shadow-md);
    height: 100%;
    transition: border-color var(--sb-dur-base) var(--sb-ease),
                box-shadow var(--sb-dur-base) var(--sb-ease);
}
.period-card:hover { border-color: var(--sb-border-strong); box-shadow: var(--sb-shadow-lg); }
.period-card-title {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-weight: 600;
    color: var(--sb-text-muted);
    margin-bottom: 10px;
}
.period-card-row {
    margin-top: 6px;
}
.period-card-row-label {
    font-size: 0.7rem;
    color: var(--sb-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
}
.period-card-row-value {
    font-family: var(--sb-font-mono);
    font-variant-numeric: tabular-nums;
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}
.period-card-net {
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid var(--sb-border);
    font-family: var(--sb-font-mono);
    font-variant-numeric: tabular-nums;
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}
.period-card-foot {
    margin-top: 8px;
    font-size: 0.72rem;
    color: var(--sb-text-dim);
}

.txt-charge { color: var(--sb-grid-import); }
.txt-discharge { color: var(--sb-bess-discharge); }
.txt-positive { color: var(--sb-success); }
.txt-negative { color: var(--sb-critical); }

/* Login page */
.sb-login-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    background:
        radial-gradient(1200px 800px at 80% -10%, var(--sb-primary-glow), transparent 60%),
        radial-gradient(900px 700px at 0% 100%, rgba(129, 140, 248, 0.10), transparent 60%),
        linear-gradient(180deg, var(--sb-bg-1), var(--sb-bg-2));
}
.sb-login-card {
    width: 100%;
    max-width: 420px;
    padding: 36px 32px;
    border-radius: var(--sb-radius-xl);
    background: var(--sb-surface);
    border: 1px solid var(--sb-border);
    box-shadow: var(--sb-shadow-lg);
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
}
.sb-login-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}
.sb-login-brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.18), rgba(129, 140, 248, 0.12));
    border: 1px solid rgba(56, 189, 248, 0.32);
}
.sb-login-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--sb-text);
}
.sb-login-sub {
    font-size: 0.85rem;
    color: var(--sb-text-muted);
    margin-bottom: 24px;
}

/* Snapshot health banner */
.snap-health {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 18px;
    border-radius: var(--sb-radius-lg);
    border: 1px solid var(--sb-border);
    background: var(--sb-surface);
    backdrop-filter: blur(16px) saturate(140%);
    -webkit-backdrop-filter: blur(16px) saturate(140%);
}
.snap-health code {
    font-family: var(--sb-font-mono);
    font-size: 0.85em;
    padding: 1px 6px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--sb-border);
}
[data-theme='light'] .snap-health code { background: rgba(15, 23, 42, 0.04); }
.snap-health a { color: var(--sb-primary); text-decoration: underline; }
.snap-health-ok {
    border-color: color-mix(in srgb, var(--sb-success) 35%, transparent);
    background: color-mix(in srgb, var(--sb-success) 6%, var(--sb-surface));
    color: color-mix(in srgb, var(--sb-success) 90%, white);
}
.snap-health-warn {
    border-color: color-mix(in srgb, var(--sb-warning) 35%, transparent);
    background: color-mix(in srgb, var(--sb-warning) 6%, var(--sb-surface));
    color: color-mix(in srgb, var(--sb-warning) 90%, white);
}
.snap-health-bad {
    border-color: color-mix(in srgb, var(--sb-critical) 40%, transparent);
    background: color-mix(in srgb, var(--sb-critical) 8%, var(--sb-surface));
    color: color-mix(in srgb, var(--sb-critical) 92%, white);
}

/* Empty / status states */
.sb-empty {
    padding: 36px;
    text-align: center;
    color: var(--sb-text-muted);
    border-radius: var(--sb-radius-lg);
    border: 1px dashed var(--sb-border-strong);
    background: var(--sb-surface);
}

/* Misc fixes */
.mud-expansion-panel {
    background: transparent !important;
    border: 1px solid var(--sb-border);
    border-radius: var(--sb-radius-md) !important;
    box-shadow: none !important;
    margin-bottom: 8px;
}
.mud-expansion-panel-header { background: transparent !important; }
.mud-expand-panel-text { color: var(--sb-text) !important; font-weight: 600 !important; }

.mud-alert {
    border-radius: var(--sb-radius-md) !important;
}

.mud-button-root {
    text-transform: none !important;
    letter-spacing: 0.01em;
}

.mud-dialog {
    border-radius: var(--sb-radius-lg) !important;
    background: var(--sb-surface-raised) !important;
    border: 1px solid var(--sb-border);
    backdrop-filter: blur(20px) saturate(150%);
}

/* MudTimeline glass */
.mud-timeline-item-content { color: var(--sb-text); }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
    .sb-alarm-pulse .sb-conn-dot { animation: none !important; }
    .flow-svg animate,
    .flow-svg animateMotion { display: none !important; }
}