:root {
  --paper: #f3eee4;
  --paper-2: #e8e0d2;
  --ink: #1c1814;
  --muted: #6f675c;
  --line: #d4cbb8;
  --known: #245744;
  --known-bg: #dce8e1;
  --midg: #3d5a32;
  --midg-bg: #e3ead4;
  --midh: #8a5a18;
  --midh-bg: #f3e6c8;
  --unknown: #8f2a24;
  --unknown-bg: #f0ddd8;
  --word: "Iowan Old Style", "Palatino Linotype", Palatino, "Times New Roman", serif;
  --ui: "Segoe UI", "PingFang SC", "Microsoft YaHei UI", sans-serif;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--ui);
}
body {
  min-height: 100dvh;
}
button, a {
  font: inherit;
  color: inherit;
}
button {
  cursor: pointer;
  border: 0;
  background: none;
}

#app {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.top {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px 8px;
}
.brand {
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.top-spacer { flex: 1; }
.linkish {
  font-size: 13px;
  color: var(--muted);
  padding: 4px 8px;
  border-radius: 6px;
}
.linkish:hover { background: var(--paper-2); }
.syncchip {
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  white-space: nowrap;
}
.sync-on { color: var(--known); border-color: #b7cfc4; background: var(--known-bg); }
.sync-err { color: var(--midh); border-color: #e2cc96; background: var(--midh-bg); }

.stats {
  display: flex;
  gap: 16px;
  padding: 0 20px 10px;
  font-size: 13px;
  color: var(--muted);
}
.stats b { color: var(--ink); font-weight: 650; }
.stats .gF b { color: var(--known); }
.stats .gG b { color: var(--midg); }
.stats .gH b { color: var(--midh); }
.stats .gJ b { color: var(--unknown); }

.bar {
  height: 4px;
  margin: 0 20px 8px;
  background: var(--paper-2);
  border-radius: 99px;
  overflow: hidden;
}
.bar > i {
  display: block;
  height: 100%;
  background: var(--ink);
  width: 0;
}

.stage {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 12px 20px 20px;
  text-align: center;
}

.word {
  font-family: var(--word);
  font-size: clamp(42px, 8vw, 84px);
  line-height: 1.05;
  letter-spacing: 0.01em;
  margin: 0 0 12px;
  font-weight: 600;
}
.ipa {
  color: var(--muted);
  font-size: 16px;
  min-height: 1.4em;
  margin: 0 0 10px;
}
.gloss {
  max-width: 36rem;
  font-size: 16px;
  line-height: 1.55;
  color: #3a342c;
  min-height: 3.2em;
}
.gloss p { margin: 0 0 6px; }
.gloss.hidden, .ipa.hidden { visibility: hidden; }
.soundrow {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: center;
  margin: 0 0 10px;
}
.soundbtn {
  border: 1px solid var(--line);
  background: #faf6ee;
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 650;
}
.soundbtn:hover { border-color: #b9ae97; }
.chip {
  border: 1px dashed var(--line);
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 12px;
  color: var(--muted);
}
.chip.on {
  border-style: solid;
  color: var(--known);
  border-color: #b7cfc4;
  background: var(--known-bg);
}
.hint {
  margin-top: 18px;
  font-size: 13px;
  color: var(--muted);
}

.actions {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  padding: 8px 20px 28px;
  max-width: 920px;
  width: 100%;
  margin: 0 auto;
}
.btn {
  border-radius: 12px;
  padding: 16px 10px;
  font-size: 17px;
  font-weight: 650;
  border: 1px solid transparent;
}
.btn small {
  display: block;
  font-size: 11px;
  font-weight: 500;
  margin-top: 4px;
  opacity: 0.78;
  line-height: 1.35;
}
.btn-F {
  background: var(--known-bg);
  color: var(--known);
  border-color: #b7cfc4;
}
.btn-G {
  background: var(--midg-bg);
  color: var(--midg);
  border-color: #c5d2b4;
}
.btn-H {
  background: var(--midh-bg);
  color: var(--midh);
  border-color: #e2cc96;
}
.btn-J {
  background: var(--unknown-bg);
  color: var(--unknown);
  border-color: #e0b6b1;
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }

.home {
  max-width: 640px;
  margin: 0 auto;
  padding: 48px 20px 32px;
}
.home h1 {
  font-family: var(--word);
  font-size: 40px;
  font-weight: 600;
  margin: 0 0 8px;
}
.lede {
  color: var(--muted);
  line-height: 1.6;
  margin: 0 0 28px;
}
.decks { display: grid; gap: 12px; }
.home-extras { margin-top: 22px; display: flex; flex-direction: column; gap: 10px; align-items: flex-start; }
.importbtn { cursor: pointer; display: inline-block; }
.import-note { font-size: 12px; color: var(--muted); margin: 0; line-height: 1.6; }
.deck {
  text-align: left;
  border: 1px solid var(--line);
  background: #faf6ee;
  border-radius: 12px;
  padding: 16px 18px;
}
.deck:hover { border-color: #b9ae97; }
.deck .name { font-size: 18px; font-weight: 650; }
.deck .blurb { font-size: 13px; color: var(--muted); margin-top: 4px; }
.deck .prog { font-size: 13px; margin-top: 8px; }

.done {
  max-width: 520px;
  margin: auto;
  padding: 40px 20px;
  text-align: center;
}
.done h1 { font-family: var(--word); font-size: 36px; margin: 0 0 12px; }
.done p { color: var(--muted); }
.done .row { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 22px; }
.solid {
  background: var(--ink);
  color: var(--paper);
  border-radius: 10px;
  padding: 12px 16px;
  font-weight: 650;
}
.ghost {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 16px;
}

.panel {
  position: fixed;
  inset: 0;
  background: rgba(28, 24, 20, 0.35);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 20;
}
.sheet {
  background: var(--paper);
  width: min(640px, 100%);
  max-height: 80dvh;
  overflow: auto;
  border-radius: 16px 16px 0 0;
  padding: 18px 18px 28px;
}
.sheet h2 { margin: 0 0 12px; font-size: 18px; }
.sheet h3 { margin: 16px 0 0; font-size: 14px; color: var(--muted); }
.sheet ul { list-style: none; padding: 0; margin: 0; }
.sheet li {
  padding: 10px 0;
  border-top: 1px solid var(--line);
  text-align: left;
}
.sheet li b { font-family: var(--word); font-size: 18px; }
.sheet li span { display: block; color: var(--muted); font-size: 13px; margin-top: 2px; }

.toast {
  position: fixed;
  left: 50%;
  bottom: 108px;
  transform: translateX(-50%);
  background: #2a2621;
  color: #f3eee4;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
  z-index: 10;
}

@media (max-width: 720px) {
  .actions { grid-template-columns: 1fr 1fr; padding-bottom: 20px; }
  .btn { font-size: 16px; padding: 14px 10px; }
  .stats { flex-wrap: wrap; gap: 10px 14px; }
  .soundbtn, .chip { touch-action: manipulation; }
}