/* SPDX-FileCopyrightText: 2026 Tsogtgerel Gantumur
 * SPDX-License-Identifier: MIT */

@font-face {
  font-family: "Khurd Tibetan";
  src: url("fonts/tibetan-khurd.woff") format("woff");
  font-weight: 700;
  font-display: block;
  unicode-range: U+0F00-0FFF;
}

:root {
  color-scheme: light dark;
  --wall: #e9e9e4;        /* lime-washed wall */
  --ink: #2a1c1d;
  --muted: #6c5f5c;
  --rule: #cfcac2;
  --maroon: #6d1f27;      /* penbe frieze */
  --maroon-deep: #4f141b;
  --gilt: #d6a23e;
  --gilt-soft: #e9c983;
  --accent: #8c2a33;
  --panel: #f4f3ef;
  --tibetan: "Khurd Tibetan", "Noto Serif Tibetan", "Jomolhari", Kailasa, "Microsoft Himalaya", serif;
  --ui: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --wall: #1c1415;
    --ink: #f1e9e3;
    --muted: #b9a9a3;
    --rule: #3c2b2c;
    --maroon: #5a171e;
    --maroon-deep: #3e0f14;
    --accent: #e3b45a;
    --panel: #251a1b;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100svh;
  padding: 0 env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
  background: var(--wall);
  color: var(--ink);
  font: 16px/1.5 var(--ui);
}

/* The frieze: the band below a Tibetan temple roof. The mantra scroll runs here. */
.frieze {
  position: relative;
  height: 64px;
  background:
    repeating-linear-gradient(90deg, rgb(0 0 0 / 0.07) 0 1px, transparent 1px 4px),
    linear-gradient(var(--maroon), var(--maroon-deep));
  border-top: 3px solid var(--gilt);
  border-bottom: 3px solid var(--gilt);
  box-shadow: inset 0 6px 10px -6px rgb(0 0 0 / 0.5);
  overflow: hidden;
}

.frieze canvas {
  display: block;
  width: 100%;
  height: 100%;
}


.topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  width: min(960px, 100% - 32px);
  margin: 0 auto;
  padding: 12px 0 0;
}

.back {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.back:hover { text-decoration: underline; }

.topbar h1 {
  flex: 1;
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0;
}

.fs {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.fs[hidden] { display: none; }
.fs svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.fs .exit { display: none; }
.fs[aria-pressed="true"] .enter { display: none; }
.fs[aria-pressed="true"] .exit { display: inline; }
.fs:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.lang { display: flex; gap: 2px; }

.lang button {
  min-height: 36px;
  padding: 4px 10px;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}

.lang button:first-child { border-radius: 6px 0 0 6px; }
.lang button:last-child { border-radius: 0 6px 6px 0; }

.lang button[aria-pressed="true"] {
  background: var(--maroon);
  border-color: var(--maroon);
  color: #fff;
}

main {
  width: min(960px, 100% - 32px);
  margin: 0 auto;
  padding-bottom: 40px;
  text-align: center;
}

.stage {
  position: relative;
  height: clamp(280px, 58svh, 640px);
  margin: 8px 0 0;
}

.stage[data-view="top"] {
  height: clamp(260px, min(58svh, 100vw - 24px), 640px);
}

#wheels {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}

#wheels:active { cursor: grabbing; }

#wheels:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 8px;
}

.count { margin-top: 6px; }

.count p { margin: 0; }

.mani {
  font-size: clamp(1.9rem, 7vw, 2.8rem);
  font-weight: 650;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.mani span {
  font-size: 0.5em;
  font-weight: 500;
  color: var(--muted);
}

.sub {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 4px 22px;
  margin-top: 6px !important;
  color: var(--muted);
  font-size: 0.92rem;
  font-variant-numeric: tabular-nums;
}

.sub output { color: var(--ink); font-weight: 600; }

.hint {
  min-height: 1.5em;
  margin: 14px 0 22px;
  color: var(--muted);
  font-size: 0.95rem;
}

.panel {
  max-width: 560px;
  margin: 10px auto 0;
  text-align: left;
  border-top: 1px solid var(--rule);
}

.panel summary {
  padding: 12px 2px;
  font-weight: 600;
  cursor: pointer;
}

.panel summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.field { margin: 0 0 18px; }

.label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.9rem;
}

.seg { display: flex; flex-wrap: wrap; gap: 6px; }

.seg label { position: relative; }

.seg input {
  position: absolute;
  opacity: 0;
  inset: 0;
  margin: 0;
  cursor: pointer;
}

.seg span {
  display: inline-block;
  min-height: 40px;
  padding: 8px 14px;
  border: 1px solid var(--rule);
  border-radius: 20px;
  background: var(--panel);
}

.seg input:checked + span {
  background: var(--maroon);
  border-color: var(--maroon);
  color: #fff;
}

.seg input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }

select {
  min-height: 40px;
  min-width: 12em;
  padding: 6px 10px;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: var(--panel);
  color: var(--ink);
  font: inherit;
  font-variant-numeric: tabular-nums;
}

.note {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.check {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 40px;
  cursor: pointer;
}

.check input { width: 20px; height: 20px; accent-color: var(--maroon); }

.reset {
  min-height: 40px;
  padding: 8px 14px;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: transparent;
  color: var(--ink);
  font: inherit;
  cursor: pointer;
}

.reset:focus-visible,
.lang button:focus-visible,
select:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.prose { padding-bottom: 12px; color: var(--ink); }
.prose p { margin: 0 0 0.8em; }
.prose .tib { font-family: var(--tibetan); font-size: 1.25em; }

@media (max-width: 420px) {
  .topbar h1 { font-size: 1.02rem; }
  .lang button { padding: 4px 8px; }
}

/* Phones held sideways, and full screen: give the wheels the whole height
 * that is left after the band, a slim title row and the counter. */
@media (orientation: landscape) and (max-height: 500px) {
  .frieze { height: 42px; }
  .topbar { padding-top: 4px; gap: 8px; }
  .topbar h1 { font-size: 0.95rem; }
  .lang button, .fs { min-height: 30px; height: 30px; }
  .fs { width: 30px; }
  .stage,
  .stage[data-view="top"] {
    height: calc(100vh - 142px);
    height: calc(100dvh - 142px);
    min-height: 170px;
    margin-top: 0;
  }
  .count { display: flex; justify-content: center; align-items: baseline; gap: 18px; margin-top: 0; }
  .mani { font-size: 1.6rem; }
  .sub { margin-top: 0 !important; }
}

.is-fullscreen .stage,
.is-fullscreen .stage[data-view="top"] {
  height: calc(100vh - 190px);
  height: calc(100dvh - 190px);
  max-height: none;
}

@media (orientation: landscape) and (max-height: 500px) {
  .is-fullscreen .stage,
  .is-fullscreen .stage[data-view="top"] {
    height: calc(100dvh - 124px);
  }
}