:root {
      --bg: #f5f5f7;
      --bg-soft: #fbfbfd;
      --surface: rgba(255, 255, 255, 0.82);
      --surface-strong: rgba(255, 255, 255, 0.94);
      --surface-muted: rgba(255, 255, 255, 0.68);
      --ink: #1d1d1f;
      --muted: #6e6e73;
      --muted-strong: #515154;
      --line: rgba(29, 29, 31, 0.08);
      --line-strong: rgba(29, 29, 31, 0.14);
      --accent: #0071e3;
      --accent-strong: #0058b0;
      --danger-bg: rgba(255, 59, 48, 0.08);
      --danger-line: rgba(255, 59, 48, 0.18);
      --danger-ink: #b42318;
      --shadow-lg: 0 28px 80px rgba(15, 23, 42, 0.08);
      --shadow-md: 0 16px 42px rgba(15, 23, 42, 0.06);
      --shadow-sm: 0 8px 24px rgba(15, 23, 42, 0.04);
      --radius-xl: 32px;
      --radius-lg: 24px;
      --radius-md: 18px;
      --radius-sm: 14px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      min-height: 100vh;
      color: var(--ink);
      font-family:
        "SF Pro Text",
        "SF Pro Display",
        -apple-system,
        BlinkMacSystemFont,
        "Helvetica Neue",
        "Segoe UI",
        sans-serif;
      letter-spacing: -0.01em;
      background:
        radial-gradient(circle at top left, rgba(0, 113, 227, 0.08), transparent 28%),
        radial-gradient(circle at top right, rgba(255, 255, 255, 0.65), transparent 18%),
        linear-gradient(180deg, #ffffff 0%, #f7f7f8 38%, var(--bg) 100%);
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.45), transparent 18%),
        radial-gradient(circle at center, transparent 0, rgba(255, 255, 255, 0.18) 100%);
      z-index: 0;
    }

    .shell {
      position: relative;
      z-index: 1;
      width: min(1240px, calc(100% - 40px));
      margin: 0 auto;
      padding: 28px 0 64px;
    }

    .hero,
    .panel,
    .table-card,
    .plot-card,
    .artifact-card {
      background: var(--surface);
      border: 1px solid var(--line);
      box-shadow: var(--shadow-md);
      backdrop-filter: blur(22px);
      -webkit-backdrop-filter: blur(22px);
    }

    .hero {
      padding: 40px 42px 36px;
      margin-bottom: 20px;
      border-radius: calc(var(--radius-xl) + 4px);
      box-shadow: var(--shadow-lg);
      animation: fade-up 0.7s ease both;
    }

    .hero-brand {
      width: 100%;
      min-height: 76px;
      max-height: 176px;
      aspect-ratio: 2894 / 451;
      margin: 0 0 22px;
      padding: clamp(8px, 1.2vw, 12px) clamp(12px, 1.8vw, 18px);
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: calc(var(--radius-lg) - 2px);
      border: 1px solid rgba(29, 29, 31, 0.06);
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(250, 250, 252, 0.88));
      box-shadow: var(--shadow-sm);
    }

    .hero-brand-image {
      display: block;
      width: 100%;
      height: 100%;
      object-fit: contain;
      object-position: center;
    }

    .hero h1 {
      margin: 0 0 12px;
      max-width: 12ch;
      font-size: clamp(2.6rem, 5vw, 4.7rem);
      line-height: 0.96;
      font-weight: 700;
      letter-spacing: -0.045em;
    }

    .hero > p:not(.meta) {
      max-width: 760px;
      margin: 0;
      font-size: 1.08rem;
      line-height: 1.6;
      color: var(--muted-strong);
    }

    .hero p,
    .meta,
    .hint,
    .status,
    label small {
      color: var(--muted);
    }

    .meta {
      margin: 0 0 14px;
      font-size: 0.8rem;
      font-weight: 600;
      letter-spacing: 0.14em;
      text-transform: uppercase;
    }

    .grid {
      display: grid;
      gap: 20px;
    }

    .form-grid {
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }

    .results-grid,
    .plot-grid,
    .artifact-grid {
      grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    }

    .panel {
      padding: 28px;
      margin-bottom: 20px;
      border-radius: var(--radius-xl);
      animation: fade-up 0.7s ease both;
    }

    h2,
    h3 {
      margin-top: 0;
      letter-spacing: -0.03em;
    }

    h2 {
      margin-bottom: 18px;
      font-size: clamp(1.32rem, 2vw, 1.8rem);
      font-weight: 650;
    }

    h3 {
      font-size: 1.04rem;
      font-weight: 650;
    }

    form {
      margin: 0;
    }

    label {
      display: grid;
      gap: 10px;
      color: var(--muted-strong);
      font-size: 0.95rem;
      font-weight: 600;
    }

    input,
    select,
    button,
    textarea {
      width: 100%;
      border: 1px solid var(--line);
      border-radius: 16px;
      padding: 13px 16px;
      font: inherit;
      color: var(--ink);
      background: var(--surface-strong);
      transition:
        border-color 0.22s ease,
        box-shadow 0.22s ease,
        background-color 0.22s ease,
        transform 0.22s ease;
    }

    input::placeholder,
    textarea::placeholder {
      color: #9a9aa0;
    }

    input:focus,
    select:focus,
    textarea:focus {
      outline: none;
      border-color: rgba(0, 113, 227, 0.4);
      box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.12);
      background: #fff;
    }

    select[multiple] {
      min-height: 142px;
    }

    .inline-check {
      display: flex;
      align-items: center;
      gap: 12px;
      min-height: 52px;
      padding: 14px 16px;
      border: 1px solid var(--line);
      border-radius: 18px;
      background: var(--surface-muted);
      font-weight: 600;
    }

    .inline-check input {
      width: 18px;
      height: 18px;
      margin: 0;
      accent-color: var(--accent);
      box-shadow: none;
    }

    .actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-top: 18px;
    }

    button {
      width: auto;
      min-width: 164px;
      cursor: pointer;
      border: 1px solid rgba(0, 0, 0, 0.04);
      border-radius: 999px;
      padding: 13px 22px;
      background: linear-gradient(180deg, #1f1f22 0%, #111214 100%);
      color: #fff;
      font-weight: 600;
      letter-spacing: -0.01em;
      box-shadow: 0 12px 28px rgba(17, 18, 20, 0.18);
    }

    button:hover {
      transform: translateY(-1px);
      box-shadow: 0 18px 34px rgba(17, 18, 20, 0.2);
    }

    button:active {
      transform: translateY(0);
    }

    button:disabled {
      opacity: 0.58;
      cursor: not-allowed;
      transform: none;
      box-shadow: none;
    }

    .flash-list {
      display: grid;
      gap: 12px;
      margin-bottom: 20px;
    }

    .flash,
    .run-error {
      padding: 16px 18px;
      border-radius: var(--radius-md);
      border: 1px solid var(--danger-line);
      background: var(--danger-bg);
      color: var(--danger-ink);
      box-shadow: var(--shadow-sm);
    }

    .progress-track {
      width: 100%;
      height: 12px;
      border-radius: 999px;
      overflow: hidden;
      background: rgba(29, 29, 31, 0.08);
      border: 1px solid rgba(29, 29, 31, 0.04);
    }

    .progress-fill {
      height: 100%;
      width: 0%;
      background: linear-gradient(90deg, var(--accent), #4fa3ff);
      transition: width 0.45s ease;
    }

    .job-grid {
      display: grid;
      gap: 12px;
      grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      margin: 18px 0 18px;
    }

    .job-stat {
      padding: 16px 18px;
      border: 1px solid var(--line);
      border-radius: 20px;
      background: var(--surface-strong);
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
    }

    .job-stat strong,
    .job-stat span {
      display: block;
    }

    .job-stat strong {
      margin-bottom: 6px;
      font-size: 0.76rem;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 0.1em;
    }

    .job-stat span {
      font-size: 1rem;
      font-weight: 600;
    }

    .job-note {
      margin: 12px 0 0;
      color: var(--muted);
    }

    .preview-wrap,
    .table-wrap {
      overflow: auto;
      max-height: 500px;
      border: 1px solid var(--line);
      border-radius: 22px;
      background: rgba(255, 255, 255, 0.9);
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
    }

    table {
      width: 100%;
      border-collapse: collapse;
      font-size: 0.92rem;
    }

    th,
    td {
      padding: 12px 14px;
      border-bottom: 1px solid rgba(29, 29, 31, 0.06);
      text-align: left;
      vertical-align: top;
      white-space: nowrap;
    }

    th {
      position: sticky;
      top: 0;
      background: rgba(248, 248, 250, 0.96);
      z-index: 1;
      color: var(--muted-strong);
      font-size: 0.78rem;
      font-weight: 650;
      text-transform: uppercase;
      letter-spacing: 0.08em;
    }

    .table-card,
    .plot-card,
    .artifact-card {
      padding: 20px;
      border-radius: 24px;
    }

    .card-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 14px;
    }

    .card-head h3,
    .card-head p {
      margin: 0;
    }

    .link {
      color: var(--accent);
      font-weight: 600;
      text-decoration: none;
      transition: color 0.2s ease;
    }

    .link:hover {
      color: var(--accent-strong);
    }

    .ghost-button {
      min-width: 0;
      background: rgba(255, 255, 255, 0.92);
      color: var(--ink);
      box-shadow: none;
      border: 1px solid var(--line-strong);
    }

    .plot-frame {
      width: 100%;
      min-height: 520px;
      border: 1px solid var(--line);
      border-radius: 22px;
      background: #fff;
    }

    img.plot-frame {
      object-fit: contain;
      min-height: 320px;
    }

    .plot-preview {
      cursor: zoom-in;
      background: #fff;
    }

    .collapsible-block {
      border: 1px solid var(--line);
      border-radius: 26px;
      background: var(--surface);
      padding: 0;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .collapsible-block summary {
      cursor: pointer;
      list-style: none;
      padding: 20px 22px;
      font-weight: 650;
      background: rgba(255, 255, 255, 0.68);
      border-bottom: 1px solid var(--line);
    }

    .collapsible-block summary::-webkit-details-marker {
      display: none;
    }

    .collapsible-content {
      padding: 20px;
    }

    .viewer-overlay {
      position: fixed;
      inset: 0;
      display: none;
      align-items: center;
      justify-content: center;
      padding: 24px;
      background: rgba(9, 12, 16, 0.62);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      z-index: 1000;
    }

    .viewer-overlay.open {
      display: flex;
    }

    .viewer-shell {
      width: min(1200px, 100%);
      max-height: min(88vh, 900px);
      display: grid;
      grid-template-rows: auto 1fr;
      gap: 14px;
      padding: 20px;
      border-radius: 28px;
      border: 1px solid rgba(255, 255, 255, 0.16);
      background: rgba(255, 255, 255, 0.9);
      box-shadow: 0 24px 60px rgba(15, 23, 42, 0.24);
    }

    .viewer-toolbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
    }

    .viewer-actions {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }

    .viewer-stage {
      position: relative;
      overflow: hidden;
      min-height: 420px;
      border: 1px solid var(--line);
      border-radius: 22px;
      background:
        linear-gradient(45deg, #f6f6f8 25%, transparent 25%) -12px 0 / 24px 24px,
        linear-gradient(-45deg, #f6f6f8 25%, transparent 25%) -12px 0 / 24px 24px,
        linear-gradient(45deg, transparent 75%, #f6f6f8 75%) -12px 0 / 24px 24px,
        linear-gradient(-45deg, transparent 75%, #f6f6f8 75%) -12px 0 / 24px 24px,
        #fff;
      cursor: grab;
      touch-action: none;
    }

    .viewer-stage.dragging {
      cursor: grabbing;
    }

    .viewer-image {
      position: absolute;
      top: 50%;
      left: 50%;
      max-width: none;
      max-height: none;
      user-select: none;
      transform-origin: center center;
      will-change: transform;
      box-shadow: 0 12px 40px rgba(15, 23, 42, 0.12);
    }

    details {
      border: 1px solid var(--line);
      border-radius: 20px;
      background: var(--surface-muted);
      padding: 16px 18px;
    }

    details pre {
      white-space: pre-wrap;
      word-break: break-word;
      margin: 14px 0 0;
      font-size: 0.88rem;
      color: var(--muted-strong);
    }

    .hidden {
      display: none;
    }

    @keyframes fade-up {
      from {
        opacity: 0;
        transform: translateY(16px);
      }

      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    @media (max-width: 700px) {
      .shell {
        width: min(100% - 18px, 1240px);
        padding-top: 18px;
      }

      .hero,
      .panel,
      .table-card,
      .plot-card,
      .artifact-card {
        border-radius: 22px;
      }

      .hero {
        padding: 28px 24px;
      }

      .hero-brand {
        margin-bottom: 18px;
        border-radius: 18px;
      }

      .panel {
        padding: 22px 18px;
      }

      .hero h1 {
        max-width: none;
        font-size: clamp(2.15rem, 11vw, 3.4rem);
      }

      .plot-frame {
        min-height: 340px;
      }

      .card-head,
      .viewer-toolbar {
        align-items: flex-start;
        flex-direction: column;
      }
    }