:root {
  --ink: #14120f;
  --paper: #efe6d4;
  --cream: #fff8ea;
  --yellow: #ffe14d;
  --red: #e23b2f;
  --blue: #2458ff;
  --lime: #c6ff4d;
  --cyan: #3ddcff;
  --muted: #6b6458;
  --line: 3px;
  --shadow: 5px 5px 0 var(--ink);
  --shadow-sm: 3px 3px 0 var(--ink);
  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
  --dock: 68px;
  --top: 60px;
  --display: "Archivo Black", "Arial Black", Impact, sans-serif;
  --sans: "IBM Plex Sans", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; height: 100%; }
html { background: var(--ink); }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--display);
  letter-spacing: -0.03em;
  min-height: 100dvh;
  overflow: hidden;
}
button, input, select, textarea { font: inherit; color: inherit; letter-spacing: inherit; }
button { cursor: pointer; }
.body, p, li, label, small, .gloss, .meaning, .note, .meta, .stat-n, .ipa, .tiny, .chip, .pill {
  font-family: var(--sans);
  letter-spacing: 0;
  font-weight: 500;
}
.mono, .stat-n { font-family: var(--mono); }

#app {
  height: 100dvh;
  height: 100svh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-width: 0;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: calc(8px + var(--safe-t)) 10px 8px;
  background: var(--yellow);
  border-bottom: var(--line) solid var(--ink);
  min-width: 0;
}

.stamp {
  background: var(--ink);
  color: var(--yellow);
  border: var(--line) solid var(--ink);
  padding: 5px 10px 3px;
  font-size: 18px;
  line-height: 1;
  box-shadow: var(--shadow-sm);
  flex: 0 0 auto;
}
.top-meta { display: flex; gap: 6px; align-items: center; min-width: 0; }
.pill {
  background: var(--cream);
  border: 3px solid var(--ink);
  padding: 4px 7px 3px;
  font-size: 11px;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  max-width: 34vw;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.icon-btn {
  width: 40px; height: 40px;
  flex: 0 0 auto;
  background: var(--cream);
  border: 3px solid var(--ink);
  box-shadow: var(--shadow-sm);
  font-size: 20px;
  line-height: 1;
}
.icon-btn:active, .stamp:active, .hard:active, .btn:active, .chip:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--ink);
}

#stage {
  overflow: auto;
  padding: 10px 10px 18px;
  -webkit-overflow-scrolling: touch;
  min-width: 0;
  overscroll-behavior: contain;
}

.dock {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: var(--line) solid var(--ink);
  background: var(--ink);
  padding: 0 0 var(--safe-b);
}
.dock button {
  background: var(--ink);
  color: var(--yellow);
  border: 0;
  border-right: 3px solid #2a2a2a;
  min-height: var(--dock);
  font-size: 12px;
  letter-spacing: 0.06em;
}
.dock button:last-child { border-right: 0; }
.dock button.on { background: var(--yellow); color: var(--ink); }

.hard {
  background: var(--cream);
  border: var(--line) solid var(--ink);
  box-shadow: var(--shadow);
}
.block { padding: 12px; margin-bottom: 10px; }
.kicker {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 6px;
}
h1, h2, .display {
  font-size: clamp(22px, 6.6vw, 36px);
  line-height: 0.95;
  margin: 0 0 6px;
  text-transform: uppercase;
}
h2 { font-size: clamp(18px, 5.2vw, 28px); }
#sheet-title { text-transform: none; }
.row { display: flex; gap: 8px; flex-wrap: wrap; }
.grow { flex: 1 1 auto; }
.btn {
  min-height: 48px;
  padding: 10px 12px;
  border: var(--line) solid var(--ink);
  background: var(--yellow);
  box-shadow: var(--shadow-sm);
  text-transform: uppercase;
  font-size: 14px;
}
.btn.red { background: var(--red); color: #fff; }
.btn.blue { background: var(--blue); color: #fff; }
.btn.lime { background: var(--lime); }
.btn.cyan { background: var(--cyan); }
.btn.ink { background: var(--ink); color: var(--yellow); }
.btn.ghost { background: var(--cream); }
.btn:disabled { opacity: .4; }

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 6px;
  margin: 10px 0 2px;
}
.stat {
  background: var(--cream);
  border: 3px solid var(--ink);
  padding: 8px 6px 6px;
  min-height: 58px;
}
.stat-n { display: block; font-size: 22px; font-weight: 600; line-height: 1; }
.stat small { color: var(--muted); font-size: 11px; text-transform: uppercase; }

.levels {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 5px;
  margin-top: 10px;
}
.lv {
  border: 3px solid var(--ink);
  background: var(--cream);
  min-height: 46px;
  padding: 4px 1px 4px;
  text-align: center;
}
.lv.on { background: var(--ink); color: var(--yellow); }
.lv b { display: block; font-size: 13px; }
.lv i { display: block; font-style: normal; font-family: var(--mono); font-size: 10px; opacity: .8; }

.list { display: grid; gap: 8px; padding-bottom: 2px; }
.tile {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
  padding: 10px;
  text-align: left;
  width: 100%;
}
.tile .t { font-size: 18px; line-height: 1; text-transform: uppercase; }
.tile .s { font-size: 13px; color: var(--muted); margin-top: 4px; font-family: var(--sans); }
.badge {
  border: 3px solid var(--ink);
  padding: 4px 7px 3px;
  font-size: 11px;
  background: var(--lime);
  font-family: var(--mono);
}

.card-stage { display: flex; flex-direction: column; min-height: 0; gap: 0; }
.deck-bar {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 4px;
  margin-bottom: 8px;
  scrollbar-width: none;
}
.deck-bar::-webkit-scrollbar { display: none; }
.chip {
  flex: 0 0 auto;
  border: 3px solid var(--ink);
  background: var(--cream);
  min-height: 34px;
  padding: 5px 9px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
}
.chip.on { background: var(--ink); color: var(--yellow); }

.flip {
  flex: 1 1 auto;
  min-height: 200px;
  perspective: 900px;
  margin-bottom: 8px;
}
.flip-inner {
  height: 100%;
  min-height: 200px;
  position: relative;
  transform-style: preserve-3d;
  transition: transform .32s ease;
}
.flip.on .flip-inner { transform: rotateY(180deg); }
.face {
  position: absolute; inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  padding: 16px 14px;
  display: flex; flex-direction: column; justify-content: center; gap: 10px;
}
.face.back { transform: rotateY(180deg); background: var(--cyan); }
.face.front { background: var(--cream); }
.es-big, .en-big {
  font-size: clamp(28px, 8vw, 46px);
  line-height: 1.02;
  text-transform: none;
  letter-spacing: -0.03em;
}
.hint { color: var(--muted); font-size: 13px; margin: 0; }
.grade {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.grade .btn { min-height: 54px; }
@media (min-width: 420px) {
  .grade { grid-template-columns: repeat(4, 1fr); }
}

.shadow-play { display: grid; gap: 8px; }
.phrase {
  font-size: clamp(20px, 5.8vw, 32px);
  line-height: 1.15;
  text-transform: none;
}
.controls { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.controls .btn { min-height: 44px; }
.rec-dot {
  display: inline-block; width: 10px; height: 10px; background: var(--red);
  border-radius: 50%; margin-right: 6px; animation: blink 1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.reader { font-size: 18px; line-height: 1.55; font-family: var(--sans); font-weight: 500; }
.reader .w {
  display: inline;
  border: 0;
  background: transparent;
  padding: 0 1px;
  margin: 0;
  font: inherit;
  letter-spacing: inherit;
  border-radius: 0;
  box-shadow: none;
  min-height: 0;
  text-transform: none;
}
.reader .w:active, .reader .w.on { background: var(--yellow); box-shadow: 0 3px 0 var(--ink); }
.reader .w.known { background: var(--lime); }
.reader p { margin: 0 0 1em; }
.text-meta { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; margin-bottom: 8px; }
.text-meta .kicker { margin: 0; flex: 1 1 auto; min-width: 0; }
.text-meta .btn { flex: 0 0 auto; min-height: 40px; padding: 6px 10px; white-space: nowrap; }

.sheet { position: fixed; inset: 0; z-index: 40; }
.sheet-scrim { position: absolute; inset: 0; background: rgba(17,17,17,.48); }
.sheet-panel {
  position: absolute; left: 0; right: 0; bottom: 0;
  background: var(--cream);
  border-top: var(--line) solid var(--ink);
  padding: 10px 14px calc(16px + var(--safe-b));
  max-height: min(86dvh, 86svh);
  overflow: auto;
}
.sheet-handle { width: 52px; height: 7px; background: var(--ink); margin: 0 auto 10px; }
.sheet-x {
  position: absolute; top: 10px; right: 10px;
  width: 40px; height: 40px;
  border: 3px solid var(--ink);
  background: var(--yellow);
  box-shadow: var(--shadow-sm);
}
#sheet-body { padding-right: 44px; padding-top: 4px; }
.ipa { color: var(--muted); font-size: 15px; margin: 0; }
.pos {
  display: inline-block;
  background: var(--yellow);
  border: 3px solid var(--ink);
  padding: 1px 6px;
  font-size: 11px;
  text-transform: uppercase;
  font-family: var(--mono);
}

#toast {
  position: fixed; left: 12px; right: 12px; bottom: calc(var(--dock) + var(--safe-b) + 12px);
  background: var(--ink); color: var(--yellow);
  border: var(--line) solid var(--ink);
  padding: 12px 14px;
  z-index: 50;
  text-transform: uppercase;
  font-size: 14px;
}

.form { display: grid; gap: 8px; }
.form label { font-size: 11px; text-transform: uppercase; color: var(--muted); display: grid; gap: 4px; }
.form select, .form input, .form textarea {
  min-height: 48px;
  border: 3px solid var(--ink);
  background: #fff;
  padding: 8px 10px;
  width: 100%;
  font-family: var(--sans);
}
.form textarea { min-height: 88px; resize: vertical; }
.empty { padding: 24px 14px; }
.tiny { font-size: 12px; color: var(--muted); margin: 0; }
hr.rule { border: 0; border-top: 3px solid var(--ink); margin: 14px 0; }
.speak-on { outline: 3px solid var(--blue); }

@media (prefers-reduced-motion: reduce) {
  .flip-inner { transition: none; }
  .rec-dot { animation: none; }
}