:root {
      --bg: #ffffff;
      --panel: #ffffff;
      --panel-border: #e2e2e2;
      --panel-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
      --text: #0a0a0a;
      --muted: #6b6b6b;
      --accent: #ff4d00;
      --accent-soft: #fff2eb;
      --danger-bg: #fbe3e4;
      --danger-border: #f0b6b8;
      --danger-text: #b3383c;
      --chip-bg: #fafafa;
      --chip-border: #e2e2e2;
      --chip-selected: #fff2eb;
      --chip-selected-border: #ff9466;
      --grid-gap: 18px;
      --sidebar-width: 340px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      height: 100%;
    }

    body {
      margin: 0;
      min-height: 100%;
      font-family: var(--font-sans);
      background:
        radial-gradient(circle at top left, rgba(255, 77, 0, 0.10), transparent 28%),
        linear-gradient(180deg, #f4f4f4 0%, #ffffff 18%, #ffffff 100%);
      color: var(--text);
      overflow: hidden;
    }

    a {
      color: inherit;
    }

    .app-shell {
      display: grid;
      grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
      gap: 0;
      width: 100vw;
      height: 100vh;
    }

    .sidebar-shell {
      min-width: 0;
      height: 100%;
      position: relative;
      z-index: 20;
      overflow-y: auto;
    }

    .sidebar-panel {
      min-height: 100%;
      padding: 20px 18px;
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .sidebar-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 12px;
    }

    .sidebar-kicker {
      display: block;
      margin-bottom: 6px;
      font-size: 0.78rem;
      font-weight: 700;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 0.08em;
    }

    .sidebar-title {
      margin: 0;
      font-size: 1.2rem;
      line-height: 1.1;
      letter-spacing: -0.03em;
    }

    .sidebar-close {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 34px;
      min-width: 34px;
      min-height: 34px;
      padding: 0;
      font-size: 0.92rem;
      line-height: 1;
    }

    .sidebar-body {
      flex: 1 1 auto;
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .sidebar-section {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .sidebar-disclosure {
      border: 1px solid #ececec;
      border-radius: 18px;
      background: rgba(255, 255, 255, 0.72);
      overflow: hidden;
      transition: border-color 120ms ease, box-shadow 120ms ease, background 120ms ease;
    }

    .sidebar-disclosure[open] {
      background: #fff;
      border-color: #e2e2e2;
      box-shadow: 0 10px 24px rgba(15, 23, 42, 0.05);
    }

    .sidebar-disclosure-summary {
      list-style: none;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 14px 16px;
      cursor: pointer;
      user-select: none;
    }

    .sidebar-disclosure-summary::-webkit-details-marker {
      display: none;
    }

    .sidebar-disclosure-summary::marker {
      content: "";
    }

    .sidebar-disclosure-summary:hover {
      background: rgba(240, 244, 248, 0.72);
    }

    .sidebar-disclosure-summary:focus-visible {
      outline: 2px solid rgba(255, 77, 0, 0.32);
      outline-offset: -2px;
    }

    .sidebar-disclosure-title {
      font-size: 0.83rem;
      font-weight: 700;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 0.06em;
    }

    .sidebar-disclosure-icon {
      color: #8a8a8a;
      transition: transform 120ms ease, color 120ms ease;
    }

    .sidebar-disclosure[open] .sidebar-disclosure-icon {
      transform: rotate(180deg);
      color: var(--accent);
    }

    .sidebar-disclosure-body {
      display: flex;
      flex-direction: column;
      gap: 16px;
      padding: 14px 16px 16px;
      border-top: 1px solid #ececec;
    }

    .sidebar-models {
      display: block;
    }

    .sidebar-section .help-text {
      margin-bottom: 0;
    }

    .sidebar-open-button {
      display: none;
      position: fixed;
      top: 14px;
      left: 14px;
      z-index: 30;
      width: 34px;
      min-width: 34px;
      min-height: 34px;
      padding: 0;
      font-size: 0.92rem;
      line-height: 1;
      box-shadow: var(--panel-shadow);
    }

    .sidebar-backdrop {
      display: none;
    }

    .sidebar-open-button .fa,
    .sidebar-close .fa {
      pointer-events: none;
    }

    .main-pane {
      min-width: 0;
      height: 100%;
      overflow-y: auto;
      padding: 0 18px 24px 18px;
    }

    .page {
      max-width: none;
      margin: 0;
      padding: 4px 0 48px;
    }

    .hero {
      display: grid;
      grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.9fr);
      gap: 20px;
      margin-bottom: 20px;
    }

    .panel {
      background: var(--panel);
      border: 1px solid var(--panel-border);
      border-radius: 18px;
      box-shadow: var(--panel-shadow);
    }

    .panel.sidebar-panel {
      border-radius: 0;
      box-shadow: none;
    }

    .hero-card {
      padding: 22px 24px;
    }

    .hero h1 {
      margin: 0 0 10px;
      font-size: 2rem;
      line-height: 1.1;
      letter-spacing: -0.03em;
    }

    .dashboard-version-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 34px;
      margin: 0 0 12px;
      padding: 7px 11px;
      border: 1px solid var(--chip-border);
      border-radius: 999px;
      background: var(--chip-bg);
      color: var(--muted);
      font-size: 0.86rem;
      font-weight: 700;
      text-decoration: none;
      transition: border-color 120ms ease, color 120ms ease, background 120ms ease;
    }

    .dashboard-version-link:hover {
      border-color: var(--chip-selected-border);
      background: var(--chip-selected);
      color: var(--accent);
    }

    .hero p {
      margin: 0;
      color: var(--muted);
      line-height: 1.55;
    }

    .summary-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
    }

    .summary-card {
      padding: 14px 16px;
      border-radius: 14px;
      background: linear-gradient(180deg, #ffffff 0%, #fafafa 100%);
      border: 1px solid #ececec;
    }

    .summary-label {
      display: block;
      font-size: 0.78rem;
      font-weight: 700;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 0.06em;
      margin-bottom: 6px;
    }

    .summary-value {
      font-size: 1.2rem;
      font-weight: 700;
      letter-spacing: -0.02em;
    }

    .info-panel {
      padding: 18px 20px 20px;
      margin-bottom: 20px;
    }

    .control-block {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .control-label {
      font-size: 0.83rem;
      font-weight: 700;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 0.06em;
    }

    .control-sublabel {
      font-size: 0.8rem;
      font-weight: 600;
      color: #444444;
      margin-top: 4px;
    }

    select,
    input[type="search"] {
      width: 100%;
      min-height: 42px;
      border-radius: 12px;
      border: 1px solid #d2d2d2;
      padding: 0 14px;
      font: inherit;
      color: var(--text);
      background: #fff;
    }

    .button-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      align-items: center;
    }

    button {
      min-height: 40px;
      border: 1px solid #d2d2d2;
      border-radius: 999px;
      padding: 0 14px;
      font: inherit;
      font-weight: 600;
      color: var(--text);
      background: #fff;
      cursor: pointer;
      transition: transform 120ms ease, background 120ms ease, border-color 120ms ease;
    }

    button:hover {
      transform: translateY(-1px);
      border-color: #8a8a8a;
    }

    .button-primary {
      background: var(--accent-soft);
      border-color: #ffc3a6;
      color: #d94000;
    }

    .help-text {
      margin: 0 0 12px;
      color: var(--muted);
      line-height: 1.5;
    }

    .color-legend {
      display: flex;
      flex-direction: column;
      gap: 10px;
      padding: 12px;
      border-radius: 14px;
      border: 1px solid #ececec;
      background: linear-gradient(180deg, #ffffff 0%, #fafafa 100%);
    }

    .color-legend-header {
      display: flex;
      justify-content: space-between;
      align-items: baseline;
      gap: 10px;
    }

    .color-legend-title {
      font-size: 0.78rem;
      font-weight: 700;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 0.06em;
    }

    .color-legend-mode {
      font-size: 0.8rem;
      font-weight: 600;
      color: #444444;
    }

    .color-legend-list {
      display: flex;
      flex-direction: column;
      gap: 8px;
      max-height: 180px;
      overflow-y: auto;
      padding-right: 2px;
    }

    .color-legend-item {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 8px 10px;
      border-radius: 12px;
      border: 1px solid #ececec;
      background: #fff;
      transition: border-color 120ms ease, background 120ms ease, transform 120ms ease, box-shadow 120ms ease;
    }

    .color-legend-item:hover,
    .color-legend-item.hover-linked {
      transform: translateY(-1px);
      border-color: #b8b8b8;
      box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
    }

    .color-legend-swatch {
      width: 12px;
      height: 12px;
      border-radius: 999px;
      flex: 0 0 auto;
      box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.08);
    }

    .color-legend-label {
      min-width: 0;
      flex: 1 1 auto;
      font-size: 0.88rem;
      font-weight: 600;
      line-height: 1.35;
    }

    .color-legend-count {
      flex: 0 0 auto;
      font-size: 0.74rem;
      color: var(--muted);
      white-space: nowrap;
    }

    .color-legend-empty {
      font-size: 0.84rem;
      color: var(--muted);
      line-height: 1.45;
    }

    .selection-group-list {
      display: flex;
      flex-direction: column;
      gap: 8px;
      max-height: 220px;
      overflow-y: auto;
      padding-right: 2px;
    }

    .selection-group-item {
      display: flex;
      align-items: center;
      gap: 10px;
      width: 100%;
      min-height: 42px;
      justify-content: flex-start;
      padding: 10px 12px;
      border-radius: 12px;
      border: 1px solid #ececec;
      background: #fff;
      text-align: left;
      font-weight: 600;
      box-shadow: none;
    }

    .selection-group-item.active {
      background: var(--chip-selected);
      border-color: var(--chip-selected-border);
      color: #d94000;
    }

    .selection-group-item.partial {
      background: #fff2eb;
      border-color: #ffc3a6;
      color: #d94000;
    }

    .selection-group-item:focus-visible {
      outline: 3px solid rgba(18, 126, 118, 0.18);
      outline-offset: 2px;
    }

    .selection-group-item:hover,
    .selection-group-item.hover-linked {
      transform: translateY(-1px);
      border-color: #b8b8b8;
      box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
    }

    .selection-group-item.active.hover-linked,
    .selection-group-item.partial.hover-linked {
      border-color: #ff9466;
      box-shadow: 0 8px 18px rgba(15, 23, 42, 0.10);
    }

    button:disabled {
      cursor: default;
      opacity: 0.58;
    }

    button:disabled:hover {
      transform: none;
      border-color: #d2d2d2;
    }

    .status-banner {
      border-radius: 14px;
      padding: 12px 14px;
      border: 1px solid #e2e2e2;
      background: #fafafa;
      color: var(--muted);
      margin-bottom: 14px;
      line-height: 1.45;
    }

    .status-banner.warning {
      background: var(--danger-bg);
      border-color: var(--danger-border);
      color: var(--danger-text);
    }

    .model-picker {
      display: grid;
      grid-template-columns: 1fr;
      gap: 10px;
      padding-right: 6px;
    }

    .model-chip {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 11px 12px;
      border-radius: 14px;
      border: 1px solid var(--chip-border);
      background: var(--chip-bg);
      transition: border-color 120ms ease, background 120ms ease, transform 120ms ease;
    }

    .model-chip:hover {
      transform: translateY(-1px);
      border-color: #b8b8b8;
    }

    .model-chip.hover-linked {
      transform: translateY(-1px);
      border-color: #b8b8b8;
      box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
    }

    .model-chip.selected {
      background: var(--chip-selected);
      border-color: var(--chip-selected-border);
    }

    .model-chip.hidden {
      display: none;
    }

    .model-chip input {
      margin: 0;
      width: 16px;
      height: 16px;
      accent-color: var(--accent);
    }

    .model-swatch {
      width: 12px;
      height: 12px;
      border-radius: 999px;
      flex: 0 0 auto;
    }

    .model-name {
      font-weight: 600;
      line-height: 1.3;
    }

    .section {
      margin-top: 20px;
    }

    .section-header {
      display: flex;
      justify-content: space-between;
      align-items: baseline;
      gap: 12px;
      margin-bottom: 12px;
    }

    .section-header h2 {
      margin: 0;
      font-size: 1.18rem;
      letter-spacing: -0.02em;
    }

    .section-header p {
      margin: 0;
      color: var(--muted);
    }

    .chart-grid-radar {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: var(--grid-gap);
    }

    .chart-grid-line {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: var(--grid-gap);
    }

    .chart-card {
      overflow: hidden;
    }

    .chart-card-header {
      display: flex;
      justify-content: space-between;
      align-items: baseline;
      gap: 12px;
      padding: 16px 18px 0;
    }

    .chart-card-title {
      font-weight: 700;
    }

    .chart-card-note {
      font-size: 0.86rem;
      color: var(--muted);
    }

    .chart {
      width: 100%;
      height: 430px;
    }

    .chart.line {
      height: 390px;
    }

    .chart.bubble {
      height: 480px;
    }

    .footer-note {
      margin-top: 20px;
      color: var(--muted);
      line-height: 1.6;
    }

    code {
      padding: 0.08rem 0.3rem;
      border-radius: 6px;
      background: #f4f4f4;
      font-family: var(--font-mono);
      font-size: 0.92em;
    }

    @media (max-width: 1360px) {
      .chart-grid-radar {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @media (max-width: 1180px) {
      .hero {
        grid-template-columns: 1fr;
      }

      .chart-grid-line {
        grid-template-columns: 1fr;
      }
    }

    body.sidebar-collapsed .app-shell {
      grid-template-columns: minmax(0, 1fr);
    }

    body.sidebar-collapsed .sidebar-shell {
      display: none;
    }

    body.sidebar-collapsed .sidebar-open-button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

    body.sidebar-collapsed .page {
      padding-top: 52px;
    }

    @media (max-width: 960px) {
      .app-shell {
        grid-template-columns: minmax(0, 1fr);
        gap: 0;
      }

      .sidebar-shell {
        position: fixed;
        inset: 0 auto 0 0;
        width: min(86vw, 360px);
        padding: 0;
        transform: translateX(-100%);
        transition: transform 180ms ease;
      }

      body.sidebar-open .sidebar-shell {
        transform: translateX(0);
      }

      .sidebar-open-button {
        display: inline-flex;
        align-items: center;
        justify-content: center;
      }

      body.sidebar-open .sidebar-open-button {
        opacity: 0;
        pointer-events: none;
      }

      .sidebar-backdrop {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(15, 23, 42, 0.32);
        backdrop-filter: blur(1px);
        opacity: 0;
        pointer-events: none;
        transition: opacity 180ms ease;
        z-index: 15;
      }

      body.sidebar-open .sidebar-backdrop {
        opacity: 1;
        pointer-events: auto;
      }

      .main-pane {
        height: 100vh;
        padding: 18px 14px 32px;
      }

      .page {
        padding: 42px 0 0;
      }
    }

    @media (max-width: 680px) {
      .chart-grid-radar,
      .summary-grid {
        grid-template-columns: 1fr;
      }
    }