:root {
            --ink: #1a1714;
            --paper: #f5f1e8;
            --paper-2: #efe9dc;
            --rule: #d6cdb8;
            --muted: #756d5e;
            --sienna: #c14d2a;
            --indigo: #1a3a5c;
            --moss: #5a6b3a;
        }

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

        body {
            font-family: 'Inter', sans-serif;
            background: var(--paper);
            min-height: 100vh;
            color: var(--ink);
        }

        .container {
            display: flex;
            min-height: 100vh;
            padding: 24px;
            gap: 24px;
        }

        .sidebar {
            width: 340px;
            flex-shrink: 0;
            background: var(--paper-2);
            padding: 28px;
            border-radius: 4px;
            border: 0.5px solid var(--rule);
            overflow-y: auto;
            overflow-x: hidden;
            max-height: calc(100vh - 48px);
        }

        .masthead {
            border-bottom: 1px solid var(--ink);
            padding-bottom: 16px;
            margin-bottom: 24px;
        }

        .masthead .imprint {
            font-size: 11px;
            letter-spacing: 2px;
            color: var(--muted);
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .masthead h1 {
            font-family: 'Crimson Pro', serif;
            font-size: 28px;
            font-weight: 500;
            line-height: 1.05;
            color: var(--ink);
            margin-bottom: 8px;
        }

        .masthead .deck {
            font-family: 'Crimson Pro', serif;
            font-style: italic;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.4;
        }

        .legend {
            font-size: 12px;
            color: var(--muted);
            line-height: 1.5;
            padding: 12px 0;
            border-top: 0.5px solid var(--rule);
            border-bottom: 0.5px solid var(--rule);
            margin-bottom: 24px;
        }

        .legend strong {
            color: var(--ink);
            font-weight: 500;
        }

        .control-section {
            margin-bottom: 24px;
        }

        .control-section h3 {
            font-size: 11px;
            font-weight: 500;
            color: var(--muted);
            margin-bottom: 12px;
            letter-spacing: 1.5px;
            text-transform: uppercase;
        }

        .seed-input {
            width: 100%;
            background: var(--paper);
            padding: 10px 12px;
            border-radius: 2px;
            font-family: 'JetBrains Mono', monospace;
            font-size: 14px;
            margin-bottom: 8px;
            border: 0.5px solid var(--rule);
            text-align: center;
            color: var(--ink);
        }

        .seed-input:focus {
            outline: none;
            border-color: var(--ink);
        }

        .seed-controls {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 6px;
            margin-bottom: 6px;
        }

        .control-group {
            margin-bottom: 16px;
        }

        .control-group label {
            display: flex;
            justify-content: space-between;
            font-size: 12px;
            font-weight: 400;
            color: var(--ink);
            margin-bottom: 6px;
        }

        .control-group .value-display {
            font-family: 'JetBrains Mono', monospace;
            font-size: 11px;
            color: var(--muted);
        }

        .slider-container input[type="range"] {
            width: 100%;
            height: 2px;
            background: var(--rule);
            border-radius: 0;
            outline: none;
            -webkit-appearance: none;
            cursor: pointer;
        }

        .slider-container input[type="range"]::-webkit-slider-thumb {
            -webkit-appearance: none;
            width: 12px;
            height: 12px;
            background: var(--ink);
            border-radius: 50%;
            cursor: pointer;
        }

        .slider-container input[type="range"]::-moz-range-thumb {
            width: 12px;
            height: 12px;
            background: var(--ink);
            border-radius: 50%;
            border: none;
            cursor: pointer;
        }

        .color-group {
            margin-bottom: 10px;
        }

        .color-group label {
            display: block;
            font-size: 11px;
            color: var(--muted);
            margin-bottom: 4px;
        }

        .color-picker-container {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .color-picker-container input[type="color"] {
            width: 24px;
            height: 24px;
            border: 0.5px solid var(--rule);
            border-radius: 2px;
            cursor: pointer;
            background: none;
            padding: 0;
        }

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

        .toggle-group {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 12px;
            font-size: 12px;
        }

        .toggle-group input[type="checkbox"] {
            cursor: pointer;
        }

        .button {
            background: var(--ink);
            color: var(--paper);
            border: none;
            padding: 8px 12px;
            border-radius: 2px;
            font-family: 'Inter', sans-serif;
            font-size: 12px;
            font-weight: 500;
            cursor: pointer;
            transition: opacity 0.15s ease;
            width: 100%;
        }

        .button:hover {
            opacity: 0.85;
        }

        .button.outline {
            background: transparent;
            color: var(--ink);
            border: 0.5px solid var(--ink);
        }

        .button-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 6px;
            margin-bottom: 6px;
        }

        .canvas-area {
            flex: 1;
            display: flex;
            align-items: flex-start;
            justify-content: center;
            min-width: 0;
        }

        #canvas-container {
            width: 100%;
            max-width: 1100px;
            border: 0.5px solid var(--rule);
            background: var(--paper);
            position: relative;
        }

        #canvas-container canvas {
            display: block;
            width: 100% !important;
            height: auto !important;
        }

        .canvas-footer {
            border-top: 0.5px solid var(--rule);
            padding: 12px 18px;
            display: flex;
            justify-content: space-between;
            font-size: 11px;
            color: var(--muted);
            letter-spacing: 0.5px;
        }

        .canvas-footer .sig {
            font-family: 'Crimson Pro', serif;
            font-style: italic;
        }

        .loading {
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 600px;
            font-family: 'Crimson Pro', serif;
            font-style: italic;
            font-size: 16px;
            color: var(--muted);
        }

        @media (max-width: 900px) {
            .container { flex-direction: column; }
            .sidebar { width: 100%; max-height: none; }
        }
    
/* Functional recovery; the original stylesheet above is preserved verbatim. */
a { color: inherit; text-underline-offset: 3px; }
a:hover { color: var(--sienna); }
button:focus-visible, input:focus-visible, select:focus-visible, a:focus-visible, summary:focus-visible, canvas:focus-visible { outline: 2px solid var(--sienna); outline-offset: 3px; }
button:disabled, input:disabled, select:disabled { opacity: .45; cursor: default; }
[hidden] { display: none !important; }
.masthead .imprint, .control-section h3 { text-transform: none; font-variant-caps: small-caps; }
.legend p + p { margin-top: 9px; }
.source-links { display: flex; gap: 7px 14px; flex-wrap: wrap; margin-top: 10px; }
.source-note, .selection-note { font-size: 11px; line-height: 1.55; color: var(--muted); }
.source-note { margin-top: 9px; }
.selection-note strong { color: var(--ink); font-weight: 500; }
select { background: var(--paper); color: var(--ink); border: .5px solid var(--rule); border-radius: 2px; font: inherit; font-size: 12px; padding: 8px; width: 100%; min-height: 36px; }
#selection-source { display: inline-block; margin-top: 8px; font-size: 12px; }
.source-details { border-top: .5px solid var(--rule); padding-top: 10px; margin-top: 10px; font-size: 11px; line-height: 1.55; color: var(--muted); }
.source-details summary { cursor: pointer; color: var(--ink); }
.source-details p { margin-top: 8px; }
#weight-rows { width: 100%; border-collapse: collapse; font-size: 10px; margin-top: 8px; }
#weight-rows th, #weight-rows td { padding: 4px 0; text-align: right; border-bottom: .5px solid var(--rule); font-weight: 400; }
#weight-rows th:first-child, #weight-rows td:first-child { text-align: left; }
#weight-rows caption { text-align: left; margin: 6px 0; }
#canvas-container { overflow: hidden; }
#canvas-container.enlarged { overflow-x: auto; }
#canvas-container.enlarged canvas { width: 1100px !important; max-width: none; }
.canvas-footer { gap: 8px 18px; align-items: center; flex-wrap: wrap; }
.canvas-footer .footer-data { display: block; font-size: 10px; letter-spacing: 0; margin-top: 5px; line-height: 1.5; }
.drawing-toolbar { display: flex; justify-content: space-between; gap: 12px; border-top: .5px solid var(--rule); padding: 9px 18px; font-size: 10px; color: var(--muted); line-height: 1.5; }
.drawing-toolbar button { flex-shrink: 0; border: 0; padding: 0; color: var(--ink); background: transparent; font: inherit; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
.loading { flex-direction: column; gap: 12px; text-align: center; padding: 24px; }
.loading .button { width: auto; }
#export-status { margin-top: 8px; min-height: 1.5em; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
@media (max-width: 900px) { .canvas-area { width: 100%; } .sidebar { overflow: visible; } .loading { min-height: 260px; } }
@media (max-width: 480px) {
  .container { padding: 16px; gap: 16px; }
  .sidebar { padding: 24px; }
  .canvas-footer { padding: 10px 12px; font-size: 10px; }
  .drawing-toolbar { padding: 9px 12px; }
  select, .button { min-height: 40px; }
  .seed-controls, .button-row { gap: 8px; }
  .color-picker-container input[type="color"] { width: 36px; height: 36px; }
  .toggle-group { min-height: 36px; }
  input[type="range"] { min-height: 24px; }
}
@media (prefers-reduced-motion: reduce) { .button { transition: none; } }