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

  :root {
    --bg-primary: #0a0e17;
    --bg-secondary: #111827;
    --bg-tertiary: #1a2235;
    --bg-card: #151d2e;
    --border: #243049;
    --border-light: #2d3f5e;
    --text-primary: #e2e8f0;
    --text-secondary: #8b9cc0;
    --text-muted: #4a5a7a;
    --accent-green: #00e5a0;
    --accent-green-dim: #00e5a033;
    --accent-amber: #f5a623;
    --accent-amber-dim: #f5a62333;
    --accent-red: #ef4444;
    --accent-blue: #3b82f6;
    --accent-purple: #a855f7;
    --accent-cyan: #06b6d4;
    --ctx-switch: #ef444488;
    --process-colors: #00e5a0, #f5a623, #3b82f6, #a855f7, #06b6d4, #ef4444, #ec4899, #84cc16, #f97316, #14b8a6, #e879f9, #fbbf24;
  }

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

  body {
    font-family: 'Outfit', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
  }

  .app-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
  }

  .app-header h1 {
    font-family: 'JetBrains Mono', monospace;
    font-size: 16px;
    font-weight: 600;
    color: var(--accent-green);
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .app-header h1 .dot {
    width: 8px; height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-green);
    animation: pulse-dot 2s infinite;
  }

  @keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
  }

  .header-controls {
    display: flex;
    gap: 8px;
  }

  .btn {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    font-weight: 500;
    padding: 8px 16px;
    border: 1px solid var(--border-light);
    border-radius: 6px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
  }

  .btn:hover { border-color: var(--accent-green); color: var(--accent-green); }

  .btn-primary {
    background: var(--accent-green);
    color: var(--bg-primary);
    border-color: var(--accent-green);
    font-weight: 700;
  }

  .btn-primary:hover { background: #00cc8e; box-shadow: 0 0 20px var(--accent-green-dim); }
  .btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }
  .btn:disabled { opacity: 0.4; cursor: not-allowed; }

  .btn-danger { border-color: var(--accent-red); color: var(--accent-red); }
  .btn-danger:hover { background: #ef444422; }

  .main-layout {
    display: grid;
    grid-template-columns: 360px 1fr 280px;
    height: calc(100vh - 53px);
    overflow: hidden;
  }

  /* LEFT PANEL */
  .config-panel {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    overflow-x: hidden;
    padding: 16px;
  }

  .config-panel::-webkit-scrollbar { width: 4px; }
  .config-panel::-webkit-scrollbar-track { background: transparent; }
  .config-panel::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 4px; }

  .section-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border);
  }

  .config-group {
    margin-bottom: 20px;
  }

  .slider-row {
    margin-bottom: 14px;
  }

  .slider-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
  }

  .slider-label span {
    font-size: 13px;
    color: var(--text-secondary);
  }

  .slider-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-green);
    background: var(--accent-green-dim);
    padding: 2px 8px;
    border-radius: 4px;
  }

  input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 4px;
    border-radius: 2px;
    background: var(--border);
    outline: none;
  }

  input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent-green);
    cursor: pointer;
    box-shadow: 0 0 8px var(--accent-green-dim);
  }

  .process-table-container {
    margin-top: 12px;
  }

  .process-mini-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 11px;
    font-family: 'JetBrains Mono', monospace;
  }

  .process-mini-table th {
    color: var(--text-muted);
    font-weight: 500;
    padding: 4px 6px;
    text-align: center;
    border-bottom: 1px solid var(--border);
    font-size: 10px;
    letter-spacing: 0.5px;
  }

  .process-mini-table td {
    padding: 5px 6px;
    text-align: center;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
  }

  .process-color-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    vertical-align: middle;
  }

  .process-state {
    font-size: 9px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 3px;
    letter-spacing: 0.5px;
  }

  .state-ready { background: #3b82f622; color: #60a5fa; }
  .state-running { background: #00e5a022; color: #00e5a0; }
  .state-waiting { background: #f5a62322; color: #f5a623; }
  .state-terminated { background: #ef444422; color: #ef4444; }
  .state-new { background: #a855f722; color: #a855f7; }

  /* CENTER PANEL */
  .center-panel {
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .center-panel::-webkit-scrollbar { width: 6px; }
  .center-panel::-webkit-scrollbar-track { background: transparent; }
  .center-panel::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 4px; }

  .gantt-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
  }

  .gantt-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-tertiary);
  }

  .gantt-header h3 {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .algo-badge {
    font-size: 10px;
    padding: 3px 8px;
    border-radius: 4px;
    font-weight: 700;
    letter-spacing: 0.5px;
  }

  .badge-rr { background: var(--accent-green-dim); color: var(--accent-green); }
  .badge-pq { background: var(--accent-amber-dim); color: var(--accent-amber); }

  .gantt-body {
    padding: 12px;
    overflow-x: auto;
    position: relative;
  }

  .gantt-body::-webkit-scrollbar { height: 4px; }
  .gantt-body::-webkit-scrollbar-track { background: transparent; }
  .gantt-body::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 4px; }

  .gantt-canvas-wrapper {
    position: relative;
    min-height: 80px;
  }

  canvas.gantt-canvas {
    display: block;
    border-radius: 4px;
  }

  .gantt-legend {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    padding: 8px 16px;
    border-top: 1px solid var(--border);
    background: var(--bg-tertiary);
  }

  .legend-item {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 10px;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
  }

  .legend-color {
    width: 12px;
    height: 8px;
    border-radius: 2px;
  }

  /* RIGHT PANEL */
  .stats-panel {
    background: var(--bg-secondary);
    border-left: 1px solid var(--border);
    overflow-y: auto;
    padding: 16px;
  }

  .stats-panel::-webkit-scrollbar { width: 4px; }
  .stats-panel::-webkit-scrollbar-track { background: transparent; }
  .stats-panel::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 4px; }

  .stats-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px;
    margin-bottom: 12px;
  }

  .stats-card h4 {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    font-weight: 600;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
  }

  .stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 5px 0;
    border-bottom: 1px solid var(--border);
  }

  .stat-row:last-child { border-bottom: none; }

  .stat-label {
    font-size: 11px;
    color: var(--text-muted);
  }

  .stat-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    font-weight: 600;
  }

  .stat-value.green { color: var(--accent-green); }
  .stat-value.amber { color: var(--accent-amber); }
  .stat-value.red { color: var(--accent-red); }
  .stat-value.blue { color: var(--accent-blue); }

  .comparison-bar {
    height: 6px;
    border-radius: 3px;
    background: var(--border);
    margin-top: 4px;
    position: relative;
    overflow: hidden;
  }

  .comparison-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s;
  }

  .time-display {
    font-family: 'JetBrains Mono', monospace;
    font-size: 20px;
    font-weight: 700;
    color: var(--accent-green);
    text-align: center;
    padding: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 12px;
    text-shadow: 0 0 20px var(--accent-green-dim);
  }

  .time-label {
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 2px;
    font-weight: 400;
  }

  .winner-badge {
    display: inline-block;
    font-size: 9px;
    padding: 2px 6px;
    border-radius: 3px;
    font-weight: 700;
    margin-left: 6px;
    letter-spacing: 0.5px;
    background: var(--accent-green-dim);
    color: var(--accent-green);
  }

  .speed-control {
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .speed-control label {
    font-size: 11px;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
  }

  /* Process type badge */
  .ptype-badge {
    font-size: 8px;
    padding: 1px 4px;
    border-radius: 2px;
    font-weight: 700;
  }

  .ptype-cpu { background: #ef444433; color: #ef4444; }
  .ptype-io { background: #3b82f633; color: #3b82f6; }
  .ptype-mixed { background: #a855f733; color: #a855f7; }

  .sim-complete-overlay {
    text-align: center;
    padding: 16px;
    background: var(--bg-card);
    border: 1px solid var(--accent-green);
    border-radius: 8px;
    margin-bottom: 12px;
  }

  .sim-complete-overlay h3 {
    color: var(--accent-green);
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    margin-bottom: 8px;
  }

  /* FLOATING STATE DIAGRAM WINDOW */
  .float-window {
    display: none;
    position: fixed;
    top: 80px;
    right: 40px;
    z-index: 200;
    width: 600px;
    max-width: 95vw;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.6);
    overflow: hidden;
    resize: both;
    min-width: 420px;
    min-height: 300px;
  }

  .float-window.active { display: block; }

  .float-titlebar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
    cursor: grab;
    user-select: none;
  }

  .float-titlebar:active { cursor: grabbing; }

  .float-titlebar-left {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    min-width: 0;
  }

  .float-titlebar-right {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
  }

  .float-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 16px;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
    line-height: 1;
  }

  .float-close:hover { color: var(--accent-red); background: #ef444422; }

  .float-algo-btn {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    font-weight: 600;
    padding: 3px 8px;
    border: 1px solid var(--border-light);
    border-radius: 4px;
    background: var(--bg-secondary);
    color: var(--text-muted);
    cursor: pointer;
  }

  .float-algo-btn.active-rr { border-color: var(--accent-green); color: var(--accent-green); background: var(--accent-green-dim); }
  .float-algo-btn.active-pq { border-color: var(--accent-amber); color: var(--accent-amber); background: var(--accent-amber-dim); }

  .float-body {
    padding: 12px 16px;
    overflow-y: auto;
    max-height: calc(100% - 42px);
  }

  .float-subtitle {
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 10px;
    font-family: 'JetBrains Mono', monospace;
  }

  .float-diagram-area {
    display: flex;
    justify-content: center;
    padding: 4px 0;
  }

  .float-log-section {
    margin-top: 10px;
    border-top: 1px solid var(--border);
    padding-top: 8px;
  }

  .float-log-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 6px;
  }

  .float-log {
    max-height: 110px;
    overflow-y: auto;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    line-height: 1.8;
    color: var(--text-secondary);
  }

  .float-log::-webkit-scrollbar { width: 4px; }
  .float-log::-webkit-scrollbar-track { background: transparent; }
  .float-log::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 4px; }

  .log-entry { display: flex; gap: 8px; align-items: center; }
  .log-time { color: var(--text-muted); min-width: 45px; }
  .log-arrow { color: var(--accent-green); }
  .log-transition { color: var(--accent-amber); font-weight: 600; }

  /* Clickable process dots - event delegation, no flicker */
  .process-color-dot.clickable {
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
  }

  .process-color-dot.clickable:hover {
    transform: scale(1.5);
    box-shadow: 0 0 8px currentColor;
  }

  @media (max-width: 1100px) {
    .main-layout {
      grid-template-columns: 1fr;
      grid-template-rows: auto 1fr auto;
      height: auto;
    }
    .config-panel, .stats-panel { max-height: 400px; }
  }

  /* BATCH SIMULATION WINDOW */
  .batch-window {
    width: 720px;
    max-width: 95vw;
    top: 60px;
    left: 50%;
    transform: translateX(-50%);
    right: auto;
    max-height: 90vh;
  }

  .batch-window .float-body {
    max-height: calc(90vh - 42px);
    overflow-y: auto;
  }

  .batch-charts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .batch-chart-box {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 10px;
  }

  .batch-chart-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .batch-higher-better {
    font-size: 9px;
    color: var(--text-muted);
    font-weight: 400;
    font-style: italic;
  }

  .batch-lower-better {
    font-size: 9px;
    color: var(--text-muted);
    font-weight: 400;
    font-style: italic;
  }

  .batch-summary {
    width: 100%;
    border-collapse: collapse;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
  }

  .batch-summary th {
    padding: 6px 8px;
    text-align: center;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 10px;
    border-bottom: 1px solid var(--border);
    letter-spacing: 0.5px;
  }

  .batch-summary td {
    padding: 5px 8px;
    text-align: center;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
  }

  .batch-summary .winner-cell {
    font-weight: 700;
  }

  .batch-verdict {
    text-align: center;
    padding: 12px;
    margin-top: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
  }

  .batch-verdict-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 4px;
  }

  .batch-verdict-sub {
    font-size: 11px;
    color: var(--text-muted);
  }

  .batch-chart-winner {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 3px;
    margin-top: 4px;
    display: inline-block;
  }