/* AlphaOS Knots: the "Drafting bench" design system (claude.ai/artifact/HDowpivLNNober2rciUFfe).
   Layout: the drawing fills the left; one 360px column of panels on the right, below it on narrow screens. */
:root {
  --paper: #f1f2ee; --paper-raised: #fafaf7; --ink: #1b1f23; --ink-muted: #575f68;
  --rule: #c4c8c2; --grid: #d9dcd6; --signal: #e2541b; --signal-ink: #a8400f; --on-signal: #ffffff;
  --select: #1f5bc8; --region: #2a7466;
  --font-sans: "Hanken Grotesk", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px; --space-6: 24px; --space-8: 32px;
  --stroke-hair: 1px; --stroke-line: 1.5px; --stroke-mark: 2px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) {
  --paper: #111316; --paper-raised: #181b1f; --ink: #e7e9e4; --ink-muted: #9ca3aa;
  --rule: #30353b; --grid: #262a30; --signal: #ff7a3d; --signal-ink: #ff9a6b; --on-signal: #111316;
  --select: #7aa8ff; --region: #5fc6ae; color-scheme: dark; } }
:root[data-theme="dark"] {
  --paper: #111316; --paper-raised: #181b1f; --ink: #e7e9e4; --ink-muted: #9ca3aa;
  --rule: #30353b; --grid: #262a30; --signal: #ff7a3d; --signal-ink: #ff9a6b; --on-signal: #111316;
  --select: #7aa8ff; --region: #5fc6ae; color-scheme: dark; }

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; }
body { background: var(--paper); color: var(--ink); font: 15px/22px var(--font-sans); display: flex; flex-direction: column; }
.bar { display: flex; justify-content: space-between; align-items: center; gap: var(--space-4); flex-wrap: wrap;
  padding-block: var(--space-3); padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px));
  border-bottom: var(--stroke-hair) solid var(--rule); }
.brand { min-width: 0; }
.brand h1 { margin: 0; font-size: 20px; line-height: 26px; font-weight: 600; }
.brand p { margin: 0; font-size: 13px; line-height: 18px; color: var(--ink-muted); }
.badge { font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em; font-weight: 500; color: var(--ink-muted); text-transform: uppercase; }
.layout { flex: 1; display: grid; grid-template-columns: minmax(0, 1fr) 360px; min-height: 0; }
.scene { position: relative; min-width: 0; min-height: 0; }
#scene { display: block; width: 100%; height: 100%; cursor: grab; touch-action: none; }
#scene:active { cursor: grabbing; }
.hint { position: absolute; left: max(16px, env(safe-area-inset-left, 0px)); bottom: var(--space-3); margin: 0;
  font-family: var(--font-mono); font-size: 11px; color: var(--ink-muted); pointer-events: none; }
.offline { position: absolute; left: max(16px, env(safe-area-inset-left, 0px)); top: var(--space-3); max-width: 420px;
  background: var(--paper-raised); border: var(--stroke-hair) solid var(--rule); padding: var(--space-2) var(--space-3); font-size: 13px; line-height: 18px; }
.panels { border-left: var(--stroke-hair) solid var(--rule); overflow-y: auto; padding-block: var(--space-4);
  padding-left: var(--space-4); padding-right: max(16px, env(safe-area-inset-right, 0px)); display: flex; flex-direction: column; gap: var(--space-4); }
.panel { background: var(--paper-raised); border: var(--stroke-hair) solid var(--rule); padding: var(--space-4); display: grid; gap: var(--space-3); min-width: 0; }
.head { display: flex; justify-content: space-between; align-items: center; }
.eyebrow { font-family: var(--font-mono); font-size: 11px; line-height: 14px; letter-spacing: .08em; font-weight: 500; color: var(--ink-muted); }
.live { display: inline-flex; align-items: center; gap: var(--space-1); font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em; font-weight: 500;
  color: var(--on-signal); background: var(--signal); padding: 2px 6px; border-radius: 2px; }
.live i { width: 6px; height: 6px; border-radius: 999px; background: var(--on-signal); display: block; }
.figs { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
.fig b { display: block; font-family: var(--font-mono); font-size: 28px; line-height: 32px; font-weight: 500; font-variant-numeric: tabular-nums; }
.fig span, .cap { font-size: 12px; line-height: 16px; color: var(--ink-muted); }
.cap { margin: 0; }
#curve { display: block; width: 100%; height: auto; }
#curve .gridline { stroke: var(--grid); stroke-width: var(--stroke-hair); }
#curve .line { fill: none; stroke: var(--ink); stroke-width: var(--stroke-line); }
#curve .end { fill: var(--ink); }
#curve text { fill: var(--ink-muted); font-family: var(--font-mono); font-size: 10px; }
.feed { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-2); }
.feed li { display: grid; grid-template-columns: 72px minmax(0, 1fr); gap: var(--space-2); border-top: var(--stroke-hair) solid var(--rule); padding-top: var(--space-2); }
.feed li:first-child { border-top: 0; padding-top: 0; }
.feed .u { font-family: var(--font-mono); font-size: 13px; color: var(--ink-muted); font-variant-numeric: tabular-nums; }
.tok { font-family: var(--font-mono); font-size: 13px; font-weight: 500; border: var(--stroke-hair) solid var(--rule); border-radius: 2px; padding: 0 5px; margin: 0 4px 4px 0; display: inline-block; }
.bars { display: grid; gap: var(--space-1); }
.barrow { display: grid; grid-template-columns: 96px minmax(0, 1fr) 40px; gap: var(--space-2); align-items: center; }
.barrow .track { height: 6px; background: var(--grid); }
.barrow .fill { height: 6px; background: var(--ink); }
.barrow .n { text-align: right; font-family: var(--font-mono); font-size: 12px; color: var(--ink-muted); font-variant-numeric: tabular-nums; }
.legend { margin: 0; display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: var(--space-2); align-items: center; font-size: 14px; line-height: 20px; }
.legend dd { margin: 0; }
.legend svg { display: block; overflow: visible; }
.m-quiet { fill: var(--ink); } .m-fire { fill: var(--signal); }
.m-pulse { fill: none; stroke: var(--signal); stroke-width: var(--stroke-mark); opacity: .55; }
.m-region { fill: none; stroke: var(--region); stroke-width: var(--stroke-line); }
.m-bracket { fill: none; stroke: var(--select); stroke-width: var(--stroke-mark); }
.m-tick { fill: none; stroke: var(--ink-muted); stroke-width: var(--stroke-hair); }
#pickbody dl { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 2px var(--space-3); margin: var(--space-2) 0 0; font-size: 13px; }
#pickbody dt { color: var(--ink-muted); } #pickbody dd { margin: 0; font-family: var(--font-mono); }
#pickbody .name { font-family: var(--font-mono); font-size: 20px; line-height: 26px; font-weight: 500; color: var(--select); }
#pickbody p { margin: var(--space-2) 0 0; font-size: 13px; line-height: 18px; color: var(--ink-muted); }
.about summary { cursor: pointer; color: var(--select); }
.about p { margin: var(--space-2) 0 0; font-size: 13px; line-height: 19px; color: var(--ink-muted); }
:focus-visible { outline: 2px solid var(--select); outline-offset: 2px; }
@media (max-width: 860px) {
  body { display: block; height: auto; }
  .layout { display: block; }
  .scene { height: 62vh; min-height: 360px; }
  .panels { border-left: 0; border-top: var(--stroke-hair) solid var(--rule); padding-left: max(16px, env(safe-area-inset-left, 0px)); overflow: visible; }
}

.status { display: flex; align-items: center; gap: var(--space-4); flex-wrap: wrap; }
.runpick { display: inline-flex; align-items: center; gap: var(--space-2); }
select, .timeline button { font: 13px var(--font-mono); color: var(--ink); background: var(--paper-raised); border: var(--stroke-hair) solid var(--rule); border-radius: 0; padding: 4px 8px; }
.timeline button { cursor: pointer; min-width: 32px; }
.timeline button:hover { border-color: var(--ink-muted); }
.timeline { position: absolute; left: max(16px, env(safe-area-inset-left, 0px)); right: var(--space-4); bottom: 36px; display: flex; align-items: center; gap: var(--space-2);
  background: var(--paper-raised); border: var(--stroke-hair) solid var(--rule); padding: var(--space-2) var(--space-3); }
#scrub { flex: 1; min-width: 0; accent-color: var(--ink); }
.stepnum { font: 500 13px var(--font-mono); font-variant-numeric: tabular-nums; min-width: 92px; text-align: right; }
.hint { bottom: 8px; }
.emit { font: 500 13px var(--font-mono); color: var(--on-signal); background: var(--signal); border: 0; padding: 6px 10px; cursor: pointer; justify-self: start; }
.emit[disabled] { opacity: .5; cursor: default; }
.resonance { display: grid; gap: var(--space-2); margin-top: var(--space-2); }
.resonance h4 { margin: 0; font: 500 11px var(--font-mono); letter-spacing: .08em; color: var(--ink-muted); }

.resonance .barrow, .resonance .tok { animation: arrive 360ms ease-out both; }
.resonance .barrow:nth-child(n) { animation-delay: calc(var(--i, 0) * 90ms); }
@keyframes arrive { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .resonance .barrow, .resonance .tok { animation: none; } }

.mixform { display: grid; gap: var(--space-2); margin: var(--space-2) 0; }
.mixform input { font: 400 13px var(--font-mono); padding: 6px 8px; color: var(--ink); background: var(--paper); border: 1px solid var(--rule); }
.mixform input:focus { outline: 2px solid var(--select); outline-offset: 1px; }