/* The public learning pages (/learn, /credits). Same palette and type as
   about.html; generated by tool/public_site. */
:root {
  --bg: #0b0e14; --panel: #161821; --panel-2: #1d202b; --ink: #e8e6e3; --muted: #a8a49e;
  --gold: #d4a520; --orange: #e07020; --rule: #2a2f3a; --stroke-done: #5d6270;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.65 "Hiragino Sans", "Yu Gothic", "Noto Sans JP", system-ui, sans-serif; }
a { color: var(--gold); }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
[lang="ja"] { font-family: "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", "Hiragino Sans", serif; }

.site-header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px;
  padding: 12px max(16px, env(safe-area-inset-left)); border-bottom: 1px solid var(--rule); }
.brand { color: var(--ink); font-weight: 800; text-decoration: none; font-size: 18px; }
.brand [lang="ja"] { color: var(--gold); font-family: inherit; }
.site-header nav { display: flex; flex-wrap: wrap; gap: 8px; }
.site-header nav a { color: var(--ink); text-decoration: none; font-weight: 700; padding: 6px 12px; border-radius: 10px;
  border: 1px solid var(--rule); font-size: 15px; }
.site-header nav a.nav-play { background: var(--orange); border-color: var(--orange); color: #fff; }

.crumbs { max-width: 920px; margin: 0 auto; padding: 12px max(16px, env(safe-area-inset-left)) 0; font-size: 14px; }
.crumbs ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px; color: var(--muted); }
.crumbs li + li::before { content: "›"; margin-right: 4px; }
.crumbs a { color: var(--muted); }

main { max-width: 920px; margin: 0 auto; padding: 24px max(16px, env(safe-area-inset-left)) 56px; }
h1 { font-size: clamp(28px, 6vw, 40px); line-height: 1.2; margin: 8px 0 12px; }
h2 { color: var(--gold); font-size: 22px; margin: 0 0 12px; }
h3 { font-size: 17px; margin: 0 0 4px; }
p, li { max-width: 70ch; }
p { margin: 0 0 12px; }
section { margin-top: 36px; }
.lede { font-size: 18px; }
.hint { color: var(--muted); font-size: 14px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.card { display: block; background: var(--panel); border: 1px solid var(--rule); border-radius: 14px; padding: 16px;
  color: var(--ink); text-decoration: none; }
.card:hover { border-color: var(--gold); }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.guide-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.guide-list a { font-weight: 700; }
.guide-list span { display: block; color: var(--muted); font-size: 15px; }

/* Level index */
.tiles { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); gap: 8px; }
.tiles a { display: grid; justify-items: center; gap: 2px; padding: 10px 6px; background: var(--panel); border: 1px solid var(--rule);
  border-radius: 12px; text-decoration: none; color: var(--ink); text-align: center; }
.tiles a:hover { border-color: var(--gold); }
.tile-glyph { font-size: 36px; line-height: 1.2; }
.tile-meaning { font-size: 13px; font-weight: 700; overflow-wrap: anywhere; }
.tile-reading { font-size: 12px; color: var(--muted); }
.grammar-list { padding-left: 28px; display: grid; gap: 6px; }
.grammar-list a { text-decoration: none; color: var(--ink); }
.grammar-list a [lang="ja"] { color: var(--gold); font-weight: 700; margin-right: 8px; }
.grammar-list a span:not([lang]) { color: var(--muted); }

/* Kanji page */
.kanji-head { display: flex; flex-wrap: wrap; gap: 16px 24px; align-items: flex-start; }
.glyph { font-size: 112px; line-height: 1; width: 152px; height: 152px; display: grid; place-items: center;
  background: var(--panel); border: 1px solid var(--rule); border-radius: 20px; color: var(--ink); }
.kanji-head h1 { margin-top: 0; }
.h1-meaning { color: var(--muted); font-size: .7em; font-weight: 700; }
.meanings { font-size: 18px; }
.facts { display: flex; flex-wrap: wrap; gap: 8px 20px; margin: 0 0 8px; }
.facts div { min-width: 0; }
.facts dt { color: var(--muted); font-size: 13px; }
.facts dd { margin: 0; font-weight: 700; font-size: 17px; overflow-wrap: anywhere; }
.meaning-ja { color: var(--muted); }

.strokes { margin: 0; }
.stroke-strip { list-style: none; padding: 0; margin: 0 0 8px; display: flex; flex-wrap: wrap; gap: 8px; }
.stroke-step { width: 72px; text-align: center; font-size: 12px; color: var(--muted); }
.stroke-step svg { display: block; width: 72px; height: 72px; background: var(--panel); border: 1px solid var(--rule); border-radius: 10px;
  fill: none; stroke-linecap: round; stroke-linejoin: round; stroke-width: 4; }
.stroke-step .done path { stroke: var(--stroke-done); }
.stroke-step .now { stroke: var(--gold); stroke-width: 5; }
.stroke-step .start { fill: var(--orange); stroke: none; }
.strokes figcaption { color: var(--muted); font-size: 14px; }

.words, .sentences, .notes { padding: 0; list-style: none; margin: 0; display: grid; gap: 12px; }
.words li { font-size: 18px; }
.reading { color: var(--muted); margin: 0 8px; }
.sentences li { background: var(--panel); border: 1px solid var(--rule); border-radius: 12px; padding: 12px 16px; }
.sentences p { margin: 0; }
.sentences .jp { font-size: 19px; }
.sentences .reading { margin: 0; font-size: 14px; }
.gloss { color: var(--ink); }
.notes li { padding-left: 14px; border-left: 3px solid var(--rule); }
.ja-note { display: block; color: var(--muted); font-size: 15px; }
.ja-text { color: var(--muted); }
.formation { font-weight: 700; background: var(--panel); border-radius: 10px; padding: 10px 14px; display: inline-block; }

.chips { list-style: none; padding: 0; margin: 0 0 12px; display: flex; flex-wrap: wrap; gap: 8px; }
.chips li { background: var(--panel); border: 1px solid var(--rule); border-radius: 999px; padding: 4px 12px; }
.chips li:has(a) { padding: 0; }
.chips a { display: block; padding: 4px 12px; text-decoration: none; color: var(--ink); }
.chips [lang="ja"] { font-size: 18px; color: var(--gold); margin-right: 4px; }
.chips span:not([lang]) { color: var(--muted); font-size: 14px; }
.chips small { color: var(--muted); }

.quiz .jp { font-size: 22px; }
.quiz details { background: var(--panel); border: 1px solid var(--rule); border-radius: 12px; padding: 10px 14px; }
.quiz summary { cursor: pointer; font-weight: 700; }
.quiz details p { margin: 8px 0 0; font-size: 22px; color: var(--gold); }

.practise { margin-top: 40px; background: var(--panel-2); border: 1px solid var(--rule); border-radius: 16px; padding: 16px 20px; }
.practise p { margin-bottom: 12px; }
.cta { display: inline-block; background: var(--orange); color: #fff; font-weight: 700; padding: 12px 24px; border-radius: 14px; text-decoration: none; }
.pager { margin-top: 32px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; border-top: 1px solid var(--rule); padding-top: 16px; }
.pager a { text-decoration: none; }

/* Guides */
.guide p, .guide li { font-size: 17px; }
.guide h2 { margin-top: 32px; }
.guide table { border-collapse: collapse; margin: 0 0 16px; display: block; overflow-x: auto; max-width: 100%; }
.guide th, .guide td { border: 1px solid var(--rule); padding: 6px 10px; text-align: left; }
.more-guides ul { padding-left: 20px; }

.site-footer { border-top: 1px solid var(--rule); padding: 24px max(16px, env(safe-area-inset-left)); color: var(--muted);
  font-size: 14px; text-align: center; }
.site-footer p { margin: 0 auto 8px; }
.site-footer a { color: var(--ink); }
.data-credit { max-width: 70ch; }

@media (max-width: 480px) {
  .glyph { width: 112px; height: 112px; font-size: 80px; }
  .stroke-step, .stroke-step svg { width: 60px; }
  .stroke-step svg { height: 60px; }
}