/* TinyGPT in the browser. Indigo ink on a cool page, marigold for the one thing to press and for the
   tokens the model writes; Hind (Indian Type Foundry) for the interface, Tiro Devanagari Hindi for
   the model's text, so what the model writes reads like print. */
:root {
  --page: #f5f6f8;
  --sheet: #ffffff;
  --ink: #1c2340;
  --muted: #5a6278;
  --rule: #d9dee8;
  --marigold: #e8a317;
  --on-marigold: #1c2340;
  --tint-a: #fbebc5;
  --tint-b: #e2e7f5;
  --slot-1: #fbe3b0; --slot-2: #d9e2f8; --slot-3: #d3efe6; --slot-4: #f6d9e4; --slot-5: #e7e0f7;
  --danger: #a3341f;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --page: #121628;
    --sheet: #191e36;
    --ink: #e6e9f2;
    --muted: #a0a7bc;
    --rule: #2b3253;
    --marigold: #f0b43a;
    --on-marigold: #121628;
    --tint-a: #3d3419;
    --tint-b: #252d4d;
    --slot-1: #4a3d17; --slot-2: #253154; --slot-3: #1d4038; --slot-4: #4a2534; --slot-5: #362d55;
    --danger: #f08a73;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 400 1.0625rem/1.6 "Hind", system-ui, sans-serif;
}
a { color: inherit; text-decoration-color: var(--marigold); text-decoration-thickness: 2px; text-underline-offset: 3px; }
a:hover { text-decoration-color: currentColor; }
:focus-visible { outline: 3px solid var(--marigold); outline-offset: 2px; border-radius: 4px; }

.page { max-width: 46rem; margin: 0 auto; padding: 2.5rem 1rem 3rem; }

/* masthead: the name in the same book face as the model's text */
.masthead h1 {
  margin: 0;
  font: 400 clamp(2.6rem, 8vw, 3.6rem)/1 "Tiro Devanagari Hindi", Georgia, serif;
  letter-spacing: -0.01em;
}
.lede { margin: 0.75rem 0 0; max-width: 38rem; color: var(--muted); font-size: 1.125rem; text-wrap: pretty; }
.links { margin: 0.6rem 0 0; display: flex; gap: 1.25rem; flex-wrap: wrap; font-weight: 500; }

/* tabs: a quiet underline, no boxes */
.tabs { display: flex; gap: 1.5rem; margin: 2.25rem 0 1.5rem; border-bottom: 1px solid var(--rule); overflow-x: auto; }
.tabs button {
  appearance: none; border: 0; background: none; color: var(--muted); cursor: pointer;
  font: 500 1rem/1 "Hind", system-ui, sans-serif; padding: 0.75rem 0 0.7rem; white-space: nowrap;
  border-bottom: 3px solid transparent; margin-bottom: -1px; border-radius: 0;
}
.tabs button[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--marigold); }

label { display: block; font-weight: 500; }
textarea, input[type="text"], input[type="number"] {
  width: 100%; margin-top: 0.35rem; padding: 0.7rem 0.85rem;
  border: 1px solid var(--rule); border-radius: 8px; background: var(--sheet); color: var(--ink);
  font: 400 1.125rem/1.5 "Tiro Devanagari Hindi", Georgia, serif; resize: vertical;
}
input[type="number"] { font: 400 1rem/1.4 "Hind", system-ui, sans-serif; max-width: 12rem; }

button {
  appearance: none; cursor: pointer; border-radius: 999px; padding: 0.55rem 1.15rem;
  font: 500 1rem/1.2 "Hind", system-ui, sans-serif;
  border: 1px solid var(--rule); background: var(--sheet); color: var(--ink);
}
button.primary { background: var(--marigold); border-color: var(--marigold); color: var(--on-marigold); font-weight: 600; }
button:disabled { cursor: default; opacity: 0.45; }
.actions { display: flex; gap: 0.6rem; margin-top: 0.8rem; }
.ask { display: flex; gap: 0.6rem; align-items: stretch; margin-top: 0.35rem; }
.ask input { margin-top: 0; }
.ask button { flex: none; }

/* examples: plain text buttons, so the page has one loud button */
.examples { display: flex; flex-wrap: wrap; gap: 0.35rem 1rem; margin: 0.7rem 0 0; }
.examples button {
  border: 0; background: none; padding: 0.1rem 0; border-radius: 0; color: var(--muted);
  font: 400 1rem/1.4 "Tiro Devanagari Hindi", Georgia, serif;
  text-decoration: underline; text-decoration-color: var(--rule); text-underline-offset: 4px; text-align: left;
}
.examples button:hover { color: var(--ink); text-decoration-color: var(--marigold); }

/* the sheet: where the model writes. The one large surface on the page. */
.sheet {
  margin-top: 1.25rem; background: var(--sheet); border: 1px solid var(--rule); border-radius: 10px;
  padding: 1.25rem 1.4rem 1.4rem; min-height: 14rem;
}
.loading { margin: 0 0 0.6rem; color: var(--muted); font-size: 0.95rem; }
.loading:empty { display: none; }
.loading progress { display: block; width: 100%; height: 6px; margin-top: 0.5rem; appearance: none; -webkit-appearance: none;
                    border: 0; border-radius: 3px; overflow: hidden; background: var(--rule); }
.loading progress::-webkit-progress-bar { background: var(--rule); }
.loading progress::-webkit-progress-value { background: var(--marigold); }
.loading progress::-moz-progress-bar { background: var(--marigold); }
.loading.error { color: var(--danger); }
.output { white-space: pre-wrap; overflow-wrap: anywhere; font: 400 1.3rem/1.85 "Tiro Devanagari Hindi", Georgia, serif; }
.output .prompt { color: var(--muted); }
.output.show-tokens .tok:nth-of-type(odd) { background: var(--tint-a); }
.output.show-tokens .tok:nth-of-type(even) { background: var(--tint-b); }
.output.show-tokens .tok { border-radius: 3px; box-decoration-break: clone; -webkit-box-decoration-break: clone; }

.under { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-top: 0.6rem; }
.stats { margin: 0; color: var(--muted); font-size: 0.95rem; }
.toggle { display: inline-flex; gap: 0.45rem; align-items: center; font-weight: 400; color: var(--muted); font-size: 0.95rem; }
.toggle input { accent-color: var(--marigold); }

.settings { margin-top: 1.4rem; border-top: 1px solid var(--rule); padding-top: 0.9rem; }
.settings summary { cursor: pointer; font-weight: 500; }
.settings summary span { font-weight: 400; color: var(--muted); }
.knobs { display: grid; grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr)); gap: 1rem 1.75rem; margin-top: 1rem; }
.knobs label { font-weight: 500; }
.knobs output { float: right; font-weight: 400; color: var(--muted); font-variant-numeric: tabular-nums; }
.knobs input[type="range"] { width: 100%; accent-color: var(--marigold); margin: 0.4rem 0 0.1rem; }
.knobs input[type="number"] { display: block; }
.knobs small { display: block; color: var(--muted); font-weight: 400; font-size: 0.85rem; line-height: 1.35; }

.note { margin: 1.4rem 0 0; color: var(--muted); font-size: 0.95rem; max-width: 40rem; text-wrap: pretty; }

/* parse result: the request with its slots set off and named underneath */
.annotated { font: 400 1.35rem/1.9 "Tiro Devanagari Hindi", Georgia, serif; display: flex; flex-wrap: wrap; gap: 0.2rem 0.45rem; align-items: flex-start; }
.annotated .slot { display: inline-flex; flex-direction: column; align-items: center; padding: 0 0.35rem; border-radius: 6px; background: var(--slot-1); }
.annotated .slot small { font: 500 0.8rem/1.2 "Hind", system-ui, sans-serif; color: var(--ink); opacity: 0.75; padding-bottom: 0.25rem; }
.intent { margin: 1.1rem 0 0.2rem; font-size: 1.05rem; }
.intent strong { font-weight: 600; }
.tree { margin: 0.8rem 0 0; padding: 0.7rem 0.85rem; border-radius: 8px; background: var(--page); color: var(--muted);
        font: 400 0.9rem/1.5 ui-monospace, "SF Mono", Menlo, monospace; white-space: pre-wrap; overflow-wrap: anywhere; }
.parse-meta { margin: 0.6rem 0 0; color: var(--muted); font-size: 0.9rem; }

.prose h2 { font: 600 1.15rem/1.3 "Hind", system-ui, sans-serif; margin: 1.6rem 0 0.4rem; }
.prose p { max-width: 40rem; text-wrap: pretty; }
#facts { border-collapse: collapse; width: 100%; max-width: 40rem; margin: 1rem 0; font-size: 0.98rem; }
#facts th, #facts td { text-align: left; padding: 0.55rem 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
#facts th { font-weight: 400; color: var(--muted); padding-right: 1rem; }
#facts td { font-weight: 500; white-space: nowrap; }

.foot { margin-top: 3rem; color: var(--muted); font-size: 0.9rem; }

@media (max-width: 34rem) {
  .page { padding-top: 1.75rem; }
  .ask { flex-direction: column; }
  .sheet { padding: 1rem; }
  .output { font-size: 1.2rem; }
  #facts td { white-space: normal; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }