static/style.css

/* ============================================================================
   OpenGrid KPTCL-SLDC Control Room — Design System
   Inspired by ERCOT control room aesthetics, adapted for Karnataka grid
   ============================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

/* ---------- CSS Custom Properties ---------- */
:root {
    /* Background layers */
    --bg-primary:     #121212;
    --bg-secondary:   #121212;
    --bg-tertiary:    #121212;
    --bg-glass:       rgba(35, 35, 35, 0.85);
    --bg-card:        rgba(24, 24, 24, 0.7);

    /* Operational states */
    --status-normal:  #00e5a0;
    --status-warning: #ffd700;
    --status-critical:#ff3d3d;
    --status-offline: #4a5568;
    --status-overload:#ff6b35;

    /* Voltage colors */
    --voltage-400kv:  #e94560;
    --voltage-220kv:  #f5a623;
    --voltage-110kv:  #7ed321;
    --voltage-66kv:   #cbd5e1;

    /* Agent identity colors */
    --agent-0: #e2e8f0;
    --agent-1: #ff69b4;
    --agent-2: #ff6347;

    /* Text */
    --text-primary:   #e8eaf6;
    --text-secondary: #90a4ae;
    --text-accent:    #00e5a0;
    --text-danger:    #ff5252;
    --text-muted:     #546e7a;

    /* Chart */
    --chart-demand:   #e2e8f0;
    --chart-supply:   #00e5a0;
    --chart-reward:   #ffd700;

    /* Spacing */
    --gap-sm: 8px;
    --gap-md: 12px;
    --gap-lg: 16px;
    --gap-xl: 20px;

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    height: 100%;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Bespoke Stencil', 'Inter', 'Segoe UI', sans-serif;
    font-size: 13px;
    line-height: 1.5;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Subtle scanline overlay */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    pointer-events: none;
    z-index: 9999;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0,0,0,0.03) 2px,
        rgba(0,0,0,0.03) 4px
    );
}

/* ---------- Layout ---------- */
.control-room {
    display: grid;
    grid-template-rows: 48px 44px 1fr 160px;
    grid-template-columns: 240px 1fr 280px;
    grid-template-areas:
        "header  header  header"
        "toolbar toolbar toolbar"
        "left    center  right"
        "bottom  bottom  bottom";
    height: 100vh;
    gap: 1px;
    background: rgba(255,255,255,0.04);
}

/* ---------- Toolbar ---------- */
.toolbar {
    grid-area: toolbar;
    background: #121212;
    display: flex;
    align-items: center;
    padding: 0 var(--gap-md);
    gap: var(--gap-md);
    border-bottom: 1px solid rgba(0,229,160,0.1);
    z-index: 10;
    overflow-x: auto;
}
.toolbar-section {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}
.toolbar-label {
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--text-muted);
    white-space: nowrap;
}
.toolbar-divider {
    width: 1px;
    height: 24px;
    background: rgba(255,255,255,0.08);
    flex-shrink: 0;
}
.toolbar-score {
    font-family: 'JetBrains Mono', monospace;
    font-size: 18px;
    font-weight: 700;
    color: var(--chart-reward);
}
.toolbar-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Task buttons (toolbar version) */
.task-selector {
    display: flex;
    gap: 4px;
}
.task-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 4px 10px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    line-height: 1.2;
}
.task-btn .task-name { font-size: 11px; }
.task-btn .task-info {
    font-size: 8px;
    font-weight: 400;
    color: var(--text-muted);
    letter-spacing: 0;
    text-transform: none;
    white-space: nowrap;
}
.task-btn:hover { border-color: rgba(0,229,160,0.3); color: var(--text-primary); }
.task-btn.active {
    background: rgba(0,229,160,0.12);
    border-color: var(--status-normal);
    color: var(--status-normal);
}
.task-btn.active .task-info { color: rgba(0,229,160,0.6); }

/* Karnataka scenario gold accent */
.task-btn.ka:hover { border-color: rgba(255,235,59,0.4); color: #ffeb3b; }
.task-btn.ka.active {
    background: rgba(255,235,59,0.1);
    border-color: #ffeb3b;
    color: #ffeb3b;
}
.task-btn.ka.active .task-info { color: rgba(255,235,59,0.5); }

/* Task group container */
.task-group {
    display: flex;
    gap: 4px;
}

/* Controls in toolbar */
.controls-row {
    display: flex;
    gap: 4px;
}
.ctrl-btn {
    padding: 5px 12px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
    white-space: nowrap;
}
.ctrl-btn:hover {
    background: rgba(0,229,160,0.1);
    border-color: rgba(0,229,160,0.3);
}
.ctrl-btn.accent {
    background: rgba(0,229,160,0.12);
    border-color: rgba(0,229,160,0.3);
    color: var(--status-normal);
}
.ctrl-btn.active {
    background: rgba(0,229,160,0.2);
    border-color: var(--status-normal);
    color: var(--status-normal);
    box-shadow: 0 0 8px rgba(0,229,160,0.15);
}
.ctrl-btn.danger { border-color: rgba(255,61,61,0.3); }
.ctrl-btn.danger:hover {
    background: rgba(255,61,61,0.1);
    border-color: rgba(255,61,61,0.5);
    color: var(--status-critical);
}

/* ---------- Map Legend ---------- */
.map-legend {
    position: absolute;
    bottom: 12px;
    left: 12px;
    background: rgba(18, 18, 18, 0.92);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-md);
    padding: 8px 12px;
    z-index: 1000;
    backdrop-filter: blur(8px);
    font-size: 10px;
}
.legend-title {
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 4px;
}
.legend-item, .legend-line {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 1px 0;
    color: var(--text-secondary);
}
.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}
.legend-line-sample {
    width: 20px;
    height: 3px;
    border-radius: 2px;
    flex-shrink: 0;
}
.legend-line-sample.normal { background: #e91e63; }
.legend-line-sample.warn { background: #ff9100; }
.legend-line-sample.crit { background: #ff1744; box-shadow: 0 0 6px rgba(255,23,68,0.5); }

/* ---------- Header ---------- */
.header {
    grid-area: header;
    background: #121212;
    display: flex;
    align-items: center;
    padding: 0 var(--gap-lg);
    gap: var(--gap-lg);
    border-bottom: 1px solid rgba(0,229,160,0.15);
    z-index: 10;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
    flex-shrink: 0;
}

.header-brand .logo {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, #00e5a0, #000000);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    color: #000000;
}

.header-brand h1 {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.header-brand .sub {
    font-size: 10px;
    color: var(--text-secondary);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.header-stats {
    display: flex;
    gap: var(--gap-lg);
    margin-left: auto;
    align-items: center;
}

.header-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.04);
}

.header-stat .label {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
}

.header-stat .value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    font-weight: 600;
}

.header-stat .value.normal { color: var(--status-normal); }
.header-stat .value.warning { color: var(--status-warning); }
.header-stat .value.critical { color: var(--status-critical); }

.sim-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 20px;
    background: rgba(0,229,160,0.1);
    border: 1px solid rgba(0,229,160,0.25);
    font-size: 10px;
    font-weight: 600;
    color: var(--status-normal);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.sim-badge .dot {
    width: 6px; height: 6px;
    background: var(--status-normal);
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0,229,160,0.4); }
    50% { opacity: 0.7; box-shadow: 0 0 0 4px rgba(0,229,160,0); }
}

/* ---------- Left Panel ---------- */
.left-panel {
    grid-area: left;
    background: var(--bg-secondary);
    padding: var(--gap-md);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--gap-md);
    border-right: 1px solid rgba(255,255,255,0.05);
}

/* ---------- Cards (shared) ---------- */
.card {
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-md);
    padding: var(--gap-md);
    backdrop-filter: blur(8px);
}

.card-title {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-secondary);
    margin-bottom: var(--gap-sm);
    padding-bottom: 6px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

/* ---------- Alarm Log ---------- */
.alarm-log {
    flex: 1;
    max-height: 90px;
    overflow-y: auto;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    line-height: 1.4;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.alarm-entry {
    padding: 4px 6px;
    background: rgba(255,255,255,0.03);
    border-left: 2px solid transparent;
    border-radius: 2px;
}
.alarm-time { color: var(--text-muted); margin-right: 6px; }
.alarm-entry.warn { border-left-color: var(--status-warning); background: rgba(255,152,0,0.05); color: #ffb74d; }
.alarm-entry.crit { border-left-color: var(--status-critical); background: rgba(244,67,54,0.05); color: #ef5350; }
.alarm-entry.info { border-left-color: var(--status-normal); }

/* ---------- Frequency Display ---------- */
.freq-card .card-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.freq-nominal-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 9px;
    font-weight: 500;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    padding: 2px 7px;
    border-radius: 999px;
    letter-spacing: 0.4px;
    text-transform: none;
}

.freq-display {
    text-align: center;
    padding: 4px 0 0;
    position: relative;
}

.freq-arc-container {
    position: relative;
    width: 100%;
    max-width: 240px;
    margin: 0 auto;
    aspect-ratio: 240 / 140;
}

.freq-arc-container .freq-svg {
    width: 100%;
    height: 100%;
    overflow: visible;
    display: block;
}

/* Big numeric readout sitting under the arc */
.freq-readout {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
    margin-top: -28px;
    margin-bottom: 6px;
    position: relative;
    z-index: 2;
}

.freq-value-big {
    font-family: 'Bespoke Stencil', sans-serif;
    font-size: 34px;
    font-weight: 400;
    letter-spacing: -1.0px;
    line-height: 1;
    transition: color 0.25s;
    font-variant-numeric: tabular-nums;
}

.freq-unit {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 1.2px;
    text-transform: uppercase;
    transform: translateY(-2px);
}

.freq-value-big.normal { color: #4a7c59; }
.freq-value-big.warning { color: #c4a45e; }
.freq-value-big.critical {
    color: #7c203a;
    animation: freq-blink 0.9s ease-in-out infinite;
}

@keyframes freq-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Delta + condition row */
.freq-delta-row {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 6px;
    margin-top: 8px;
    flex-wrap: wrap;
}

.freq-delta-chip {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 0;
    border-radius: 0;
    font-family: 'Bespoke Stencil', sans-serif;
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 0.5px;
    border: none;
    transition: all 0.25s;
    font-variant-numeric: tabular-nums;
}

.freq-delta-arrow {
    font-size: 8px;
    line-height: 1;
}

.freq-delta-chip.normal { color: #4a7c59; }
.freq-delta-chip.warning { color: #c4a45e; }
.freq-delta-chip.critical { color: #7c203a; }

/* Grid condition badge */
.grid-condition {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0;
    border-radius: 0;
    font-family: 'Bespoke Stencil', sans-serif;
    font-size: 10px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    border: none;
    transition: all 0.25s;
    position: relative;
    margin-left: 10px;
}

.grid-condition .cond-dot {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: currentColor;
    flex-shrink: 0;
}

.grid-condition.normal { color: #4a7c59; }
.grid-condition.conservative { color: #c4a45e; }
.grid-condition.alert { color: #c4a45e; }
.grid-condition.emergency {
    color: #7c203a;
    animation: cond-pulse 1.2s ease-in-out infinite;
}
    animation: cond-pulse 1.2s ease-in-out infinite;
}
.grid-condition.emergency .cond-dot {
    animation: dot-pulse 0.8s ease-in-out infinite;
}

@keyframes cond-pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(255, 61, 61, 0.35),
                    inset 0 0 0 0 rgba(255, 61, 61, 0);
    }
    50% {
        box-shadow: 0 0 0 5px rgba(255, 61, 61, 0),
                    inset 0 0 8px 0 rgba(255, 61, 61, 0.15);
    }
}

@keyframes dot-pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.4); opacity: 0.7; }
}

/* ---------- System Summary ---------- */
.stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
    font-size: 12px;
}

.stat-row .label { color: var(--text-secondary); }
.stat-row .value {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
}

.stat-row.highlight .value {
    color: var(--status-normal);
    font-weight: 600;
}

/* Progress bars */
.progress-bar {
    height: 4px;
    background: rgba(255,255,255,0.06);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 4px;
}

.progress-bar-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.5s;
}

/* ---------- Center Panel (Grid Map) ---------- */
.center-panel {
    grid-area: center;
    background: var(--bg-tertiary);
    position: relative;
    overflow: hidden;
}

.grid-map {
    width: 100%;
    height: 100%;
}

.grid-map svg {
    width: 100%;
    height: 100%;
}

/* SVG map styles */
.zone-polygon {
    opacity: 0.06;
    transition: opacity 0.4s;
    cursor: pointer;
    filter: blur(0.5px);
}
.zone-polygon:hover { opacity: 0.18; }

.substation-node { cursor: pointer; }
.substation-node:hover .node-outer { stroke-width: 2.5; filter: url(#glow); }
.substation-node:hover .node-label { opacity: 1; }

.node-label {
    font-family: 'Inter', sans-serif;
    font-size: 8px;
    fill: var(--text-secondary);
    text-anchor: middle;
    pointer-events: none;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.node-mw {
    font-family: 'JetBrains Mono', monospace;
    font-size: 9px;
    fill: var(--text-primary);
    text-anchor: middle;
    pointer-events: none;
    font-weight: 500;
}

.line-flow {
    fill: none;
    stroke-linecap: round;
}

/* Animated flow on lines */
@keyframes dash-flow {
    to { stroke-dashoffset: -24; }
}
.line-animated {
    animation: dash-flow 1.2s linear infinite;
}
.line-animated.reverse {
    animation-direction: reverse;
}

.flow-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 8px;
    fill: rgba(232,234,246,0.6);
    text-anchor: middle;
    pointer-events: none;
}

.zone-badge { font-family: 'Inter', sans-serif; pointer-events: none; }
.zone-badge-bg {
    rx: 8;
    fill: rgba(18, 18, 18, 0.88);
    stroke-width: 1;
    backdrop-filter: blur(6px);
}
.zone-badge-name { font-size: 10px; font-weight: 600; text-anchor: middle; }
.zone-badge-status { font-size: 8px; text-anchor: middle; fill: var(--text-secondary); }
.zone-badge-reward { font-size: 9px; text-anchor: middle; font-weight: 600; font-family: 'JetBrains Mono', monospace; }

/* Bus tooltip */
.bus-tooltip {
    position: absolute;
    background: rgba(18, 18, 18, 0.95);
    border: 1px solid rgba(0,229,160,0.2);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    font-size: 11px;
    pointer-events: none;
    z-index: 20;
    min-width: 140px;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
    display: none;
}
.bus-tooltip.visible { display: block; }
.bus-tooltip .tt-title {
    font-weight: 600;
    margin-bottom: 4px;
    padding-bottom: 4px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.bus-tooltip .tt-row {
    display: flex;
    justify-content: space-between;
    padding: 1px 0;
}
.bus-tooltip .tt-row .tt-val {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
}

/* Map overlay controls */
.map-controls {
    position: absolute;
    top: var(--gap-md);
    right: var(--gap-md);
    display: flex;
    flex-direction: column;
    gap: 4px;
    z-index: 5;
}

.map-btn {
    width: 32px; height: 32px;
    background: var(--bg-glass);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
    transition: all 0.2s;
}

.map-btn:hover {
    background: rgba(0,229,160,0.15);
    color: var(--status-normal);
    border-color: rgba(0,229,160,0.3);
}

/* ---------- Right Panel (Agent Monitor) ---------- */
.right-panel {
    grid-area: right;
    background: var(--bg-secondary);
    padding: var(--gap-md);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--gap-md);
    border-left: 1px solid rgba(255,255,255,0.05);
}

/* Agent cards */
.agent-card {
    border-radius: var(--radius-md);
    padding: var(--gap-md);
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.06);
    backdrop-filter: blur(8px);
    transition: border-color 0.3s, box-shadow 0.3s;
}

.agent-card.active {
    border-color: rgba(0,229,160,0.2);
}

.agent-card.warning {
    border-color: rgba(255,215,0,0.3);
    box-shadow: 0 0 12px rgba(255,215,0,0.05);
}

.agent-card.critical {
    border-color: rgba(255,61,61,0.3);
    box-shadow: 0 0 12px rgba(255,61,61,0.08);
    animation: card-pulse 1.5s infinite;
}

@keyframes card-pulse {
    0%, 100% { box-shadow: 0 0 12px rgba(255,61,61,0.08); }
    50% { box-shadow: 0 0 20px rgba(255,61,61,0.15); }
}

.agent-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--gap-sm);
}

.agent-name {
    font-size: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

.agent-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.agent-status-badge {
    font-size: 9px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.agent-status-badge.active {
    background: rgba(0,229,160,0.15);
    color: var(--status-normal);
}

.agent-status-badge.corrected {
    background: rgba(255,215,0,0.15);
    color: var(--status-warning);
}

.agent-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    margin-top: var(--gap-sm);
}

.agent-metric {
    padding: 6px 8px;
    background: rgba(255,255,255,0.02);
    border-radius: var(--radius-sm);
}

.agent-metric .label {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.agent-metric .value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    font-weight: 600;
    margin-top: 2px;
}

/* Safety shield */
.safety-shield {
    margin-top: var(--gap-sm);
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.safety-shield.safe {
    background: rgba(0,229,160,0.08);
    border: 1px solid rgba(0,229,160,0.15);
    color: var(--status-normal);
}

.safety-shield.corrected {
    background: rgba(255,215,0,0.08);
    border: 1px solid rgba(255,215,0,0.2);
    color: var(--status-warning);
}

.safety-shield.violated {
    background: rgba(255,61,61,0.08);
    border: 1px solid rgba(255,61,61,0.2);
    color: var(--status-critical);
}

/* Sparkline */
.sparkline-container {
    margin-top: var(--gap-sm);
    height: 30px;
    background: rgba(255,255,255,0.02);
    border-radius: var(--radius-sm);
    padding: 4px;
}

.sparkline-container svg {
    width: 100%;
    height: 100%;
}

/* ---------- Bottom Panel ---------- */
.bottom-panel {
    grid-area: bottom;
    background: var(--bg-secondary);
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 1px;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.bottom-card {
    background: var(--bg-card);
    padding: var(--gap-md);
    display: flex;
    flex-direction: column;
}

.chart-area {
    flex: 1;
    position: relative;
    min-height: 0;
}

.chart-area canvas, .chart-area svg {
    width: 100%;
    height: 100%;
}

/* Reward chart */
.reward-history {
    flex: 1;
}

/* Leaderboard */
.leaderboard {
    list-style: none;
}

.leaderboard li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 5px 0;
    font-size: 11px;
    border-bottom: 1px solid rgba(255,255,255,0.03);
}

.leaderboard li:last-child { border-bottom: none; }

.leaderboard .agent-label {
    display: flex;
    align-items: center;
    gap: 6px;
}

.leaderboard .score {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
    font-size: 12px;
}

/* Coordination score */
.coord-score {
    text-align: center;
    padding: var(--gap-sm);
}

.coord-score .big-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 28px;
    font-weight: 700;
}

/* Alert banner */
.alert-banner {
    position: fixed;
    top: 52px;
    left: 0; right: 0;
    z-index: 100;
    padding: 8px var(--gap-lg);
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
    font-size: 12px;
    font-weight: 500;
    transform: translateY(-20px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s;
}

.alert-banner.visible {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.alert-banner.critical {
    background: rgba(255,61,61,0.15);
    border-bottom: 1px solid rgba(255,61,61,0.3);
    color: var(--status-critical);
}

.alert-banner.warning {
    background: rgba(255,215,0,0.1);
    border-bottom: 1px solid rgba(255,215,0,0.2);
    color: var(--status-warning);
}

.alert-banner .dismiss {
    margin-left: auto;
    background: none;
    border: 1px solid currentColor;
    border-radius: var(--radius-sm);
    color: inherit;
    padding: 2px 8px;
    font-size: 10px;
    cursor: pointer;
    opacity: 0.7;
}

.alert-banner .dismiss:hover { opacity: 1; }

/* Scrollbar */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

/* Loading state */
.loading-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s;
}

.loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-spinner {
    width: 40px; height: 40px;
    border: 3px solid rgba(0,229,160,0.15);
    border-top-color: var(--status-normal);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-text {
    margin-top: var(--gap-md);
    color: var(--text-secondary);
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* ── Leaflet Overrides ── */
.grid-map .leaflet-container {
    background: var(--bg-primary) !important;
}

.leaflet-tooltip-dark {
    background: rgba(10, 14, 26, 0.92) !important;
    border: 1px solid rgba(0, 229, 160, 0.3) !important;
    color: #e0e0e0 !important;
    font-family: 'JetBrains Mono', monospace !important;
    font-size: 11px !important;
    border-radius: 6px !important;
    padding: 6px 10px !important;
    box-shadow: 0 4px 20px rgba(0,0,0,0.6) !important;
}

.leaflet-tooltip-dark::before {
    border-top-color: rgba(10, 14, 26, 0.92) !important;
}

.bus-label-icon, .bus-mw-icon, .zone-badge-leaflet, .line-flow-label {
    background: none !important;
    border: none !important;
    text-align: center;
    overflow: visible !important;
}

/* MW injection pill above each significant bus node */
.bus-mw-pill {
    display: inline-flex;
    align-items: baseline;
    gap: 1px;
    padding: 2px 6px;
    border-radius: 999px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 9px;
    font-weight: 700;
    line-height: 1;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border: 1px solid transparent;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}
.bus-mw-pill small {
    font-size: 7px;
    font-weight: 500;
    opacity: 0.7;
    margin-left: 1px;
}
.bus-mw-pill.pos {
    background: rgba(0, 229, 160, 0.18);
    color: #00e5a0;
    border-color: rgba(0, 229, 160, 0.35);
}
.bus-mw-pill.neg {
    background: rgba(233, 69, 96, 0.18);
    color: #ff8a9e;
    border-color: rgba(233, 69, 96, 0.35);
}
.bus-mw-pill.zero {
    background: rgba(255, 255, 255, 0.08);
    color: #cbd5e1;
    border-color: rgba(255, 255, 255, 0.15);
}

/* Transmission line flow pill */
.line-flow-pill {
    display: inline-flex;
    align-items: baseline;
    gap: 1px;
    padding: 2px 5px;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 9px;
    font-weight: 700;
    line-height: 1;
    color: var(--flow-color, #fff);
    background: rgba(10, 10, 10, 0.78);
    border: 1px solid var(--flow-color, rgba(255,255,255,0.2));
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}
.line-flow-pill small {
    font-size: 7px;
    font-weight: 500;
    opacity: 0.7;
    margin-left: 1px;
}

/* Region badge floating above each zone cluster */
.zone-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 9px 4px 4px;
    background: rgba(15, 15, 18, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 999px;
    font-family: 'Inter', sans-serif;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    white-space: nowrap;
    pointer-events: none;
    transition: transform 0.2s;
}
.zone-pill-bar {
    width: 4px;
    height: 14px;
    border-radius: 2px;
    background: var(--zc, #00e5a0);
    box-shadow: 0 0 6px var(--zc, #00e5a0);
    flex-shrink: 0;
}
.zone-pill-name {
    color: #e8eaf6;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.2px;
}
.zone-pill-pts {
    font-family: 'JetBrains Mono', monospace;
    font-size: 9px;
    font-weight: 700;
    padding: 1px 6px;
    border-radius: 999px;
    font-variant-numeric: tabular-nums;
}
.zone-pill-pts.pos {
    background: rgba(0, 229, 160, 0.18);
    color: #00e5a0;
}
.zone-pill-pts.neg {
    background: rgba(255, 61, 61, 0.18);
    color: #ff8a8a;
}
.zone-pill-pts.neutral {
    background: rgba(255, 255, 255, 0.08);
    color: #b0bec5;
}

/* Dark zoom controls */
.leaflet-control-zoom a {
    background: rgba(15, 22, 40, 0.9) !important;
    color: var(--status-normal) !important;
    border-color: rgba(0, 229, 160, 0.2) !important;
    font-family: 'JetBrains Mono', monospace !important;
}
.leaflet-control-zoom a:hover {
    background: rgba(0, 229, 160, 0.15) !important;
}

.leaflet-control-attribution {
    background: var(--bg-glass) !important;
    color: #555 !important;
    font-size: 9px !important;
}
.leaflet-control-attribution a {
    color: #666 !important;
}

.line-flow-label {
    background: none !important;
    border: none !important;
    text-align: center;
}

/* Dark background for procedural grids (no map tiles) */
.leaflet-container {
    background: #121212 !important;
}

/* ---------- Bottom Panel ---------- */
.bottom-panel {
    grid-area: bottom;
    background: var(--bg-secondary);
    display: flex;
    gap: var(--gap-md);
    padding: var(--gap-md);
    border-top: 1px solid rgba(255,255,255,0.05);
    z-index: 10;
}

.bottom-card {
    flex: 1;
    background: linear-gradient(180deg, rgba(28,28,28,0.7) 0%, rgba(20,20,20,0.7) 100%);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-md);
    padding: var(--gap-sm) var(--gap-md) 4px;
    display: flex;
    flex-direction: column;
    transition: border-color 0.2s, box-shadow 0.2s;
    min-width: 0;
}

.bottom-card:hover {
    border-color: rgba(255,255,255,0.1);
    box-shadow: 0 4px 16px rgba(0,0,0,0.25);
}

.bottom-card .card-title {
    margin-bottom: 4px;
}

.chart-area {
    flex: 1;
    min-height: 0;
    position: relative;
    overflow: hidden;
}

.chart-area svg,
.chart-area .chart-svg {
    width: 100%;
    height: 100%;
    display: block;
    overflow: visible;
}

.chart-area svg text {
    font-feature-settings: "tnum" 1;
}