:root {
  --ink: #000000;
  --muted: #2c2c2e;
  --bg: #fffdf6;
  --card: #ffffff;
  --navy: #0033b8;
  --navy2: #002080;
  --gold: #f5c400;
  --ok: #0b7a2b;
  --ok-ink: #003d16;
  --bad: #b00000;
  --line: #111111;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.16);
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); border: 0;
}
html { background: #000; }
body {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  font-family: system-ui, -apple-system, "SF Pro Text", "Segoe UI", sans-serif;
  color: var(--ink);
  background: #111;
}
button, .chunk, .choice, .az-key, .az-fn, .match-tile, .slot, .word-row, .intro-row, .kbtn {
  user-select: none;
  touch-action: manipulation;
  font: inherit;
}
button { color: inherit; cursor: pointer; border: none; background: none; }
button:disabled:not(.choice) { cursor: not-allowed; opacity: 0.38; }

.phone {
  position: relative;
  width: min(100vw, 430px);
  height: 100dvh;
  overflow: hidden;
  background: var(--bg);
  display: flex;
  flex-direction: column;
}
@media (max-width: 480px) { .phone { width: 100vw; } }
/* Computer: fill the window. Do not keep a phone column on a big screen. */
@media (min-width: 700px) {
  html { background: var(--bg); }
  body {
    display: block;
    background: var(--bg);
  }
  .phone {
    width: 100vw;
    max-width: none;
    height: 100dvh;
  }
}

/* Chrome */
.topbar {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 8px;
  padding: calc(8px + env(safe-area-inset-top)) 12px 8px;
  flex: 0 0 auto;
  background: rgba(245,245,247,0.92);
  backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--line);
}
.topbar.no-back { grid-template-columns: minmax(0, 1fr) auto auto; }
.topbar.no-back .icon-btn { display: none; }
.student-name-btn {
  max-width: 120px;
  min-height: 36px;
  padding: 0 10px;
  border-radius: 980px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--navy);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.score-record-list {
  margin: 0;
  padding: 0 16px 24px;
  list-style: none;
}
.score-record-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.35;
}
.score-record-empty,
.record-title {
  padding: 0 16px;
}
.record-title {
  margin: 12px 0 8px;
  font-size: 18px;
}
.brand h1 {
  margin: 0;
  text-align: center;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.icon-btn {
  min-height: 44px;
  font-size: 22px;
  font-weight: 500;
  color: var(--navy);
}
.lang-wrap select,
.boot-lang select {
  min-height: 36px;
  max-width: 148px;
  border-radius: 980px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
  padding: 0 12px;
}

.teacher-bar {
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
  padding: 6px 12px;
  overflow-x: auto;
  overflow-y: hidden;
  flex: 0 0 auto;
  background: #1d1d1f;
  align-items: center;
}
.phone.play .teacher-bar { display: none; }
body.is-student .teacher-bar { display: none !important; }
.teacher-badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 980px;
  background: #f5c518;
  color: #1d1d1f;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}
.teacher-bar button {
  min-height: 28px;
  padding: 0 10px;
  border-radius: 980px;
  background: #3a3a3c;
  color: #f5f5f7;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.class-progress-status {
  margin: 0 0 10px;
  font-size: 14px;
  color: var(--muted);
}
.class-progress-incomplete-warn {
  margin: 0 0 12px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #e8b4b4;
  background: #fff5f5;
  color: #8b1e1e;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
}
.class-progress-students,
.class-progress-packs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}
.class-student-btn,
.class-pack-btn {
  min-height: 36px;
  padding: 0 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 13px;
  font-weight: 600;
}
.class-student-btn.on,
.class-pack-btn.on {
  border-color: var(--accent);
  background: #fff8e8;
}
.class-student-btn.locked {
  opacity: 0.55;
}
.class-progress-daily {
  margin: 0.75rem 0 1rem;
  text-align: left;
}
.class-progress-daily-title {
  font-size: 1rem;
  margin: 0 0 0.5rem;
}
.class-progress-day h4 {
  margin: 0.5rem 0 0.25rem;
  font-size: 0.95rem;
}
.class-progress-day-line {
  margin: 0.15rem 0;
  font-size: 0.9rem;
  line-height: 1.35;
}
.score-record-day {
  font-weight: 800;
  margin-top: 0.75rem;
}
.score-record-day-words {
  font-size: 0.92rem;
  opacity: 0.95;
  margin-left: 0.25rem;
}
.class-progress-table-wrap {
  overflow: auto;
  max-height: 55vh;
}
.class-progress-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.class-progress-table th,
.class-progress-table td {
  border: 1px solid var(--line);
  padding: 6px 8px;
  text-align: center;
}
.class-progress-table th:first-child,
.class-progress-table td:first-child {
  text-align: left;
}

.voice-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  padding: 8px 12px;
  flex: 0 0 auto;
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}
.voice-btn {
  min-height: 32px;
  border-radius: 980px;
  background: #f5f5f7;
  color: var(--ink);
  font-weight: 600;
  font-size: 11px;
  border: 1px solid var(--line);
}
.voice-btn.fun { background: #f5f5f7; }
.voice-btn[aria-pressed="true"] {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}

.stage {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  padding: 0;
  display: flex;
  flex-direction: column;
}
.screen { display: none; }
.screen.active {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
}
#screen-home.active {
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
#screen-set.active {
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

/* Boot — no overlapping chrome */
.screen-boot {
  justify-content: space-between;
  padding-top: calc(20px + env(safe-area-inset-top));
}
.boot-lang { align-self: flex-end; }
.boot-hero { text-align: center; margin-top: 8vh; }
.logo-mark {
  display: inline-grid;
  place-items: center;
  width: 64px; height: 64px;
  margin: 0 auto 16px;
  border-radius: 16px;
  background: var(--navy);
  color: #fff;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.04em;
}
.eyebrow {
  text-align: center;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  margin: 0 0 8px;
}
.hero-title {
  margin: 0;
  text-align: center;
  font-size: 34px;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.1;
}
.hero-sub {
  text-align: center;
  color: var(--muted);
  margin: 10px 0 0;
  font-size: 17px;
}
.tap-start {
  width: 100%;
  min-height: 56px;
  border-radius: 980px;
  background: var(--navy);
  color: #fff;
  display: grid;
  place-items: center;
  gap: 2px;
  margin-top: auto;
}
.tap-big { font-size: 17px; font-weight: 600; }
.tap-ko { font-size: 13px; opacity: 0.85; }

.name-input {
  width: 100%;
  min-height: 52px;
  border-radius: 14px;
  border: 2px solid var(--line);
  font-size: 22px;
  padding: 8px 14px;
  margin: 16px 0;
  background: #fff;
  color: var(--ink);
}
.hello { font-weight: 800; font-size: 22px; margin: 4px 0 8px; letter-spacing: -0.03em; color: var(--ink); }
.signout-link {
  align-self: flex-start;
  min-height: 36px;
  margin: 0 0 12px;
  padding: 0 4px;
  font-size: 13px;
  font-weight: 700;
  color: var(--navy);
  text-decoration: underline;
}
.signin-card {
  background: #fff;
  border: 2px solid var(--line);
  border-radius: 18px;
  padding: 14px;
  margin-bottom: 12px;
}
.signin-kicker {
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
}
.signin-field {
  display: grid;
  gap: 4px;
  margin: 8px 0 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}
.signin-card .name-input { margin: 0; font-size: 18px; }
.pin-input { letter-spacing: 0.35em; font-variant-numeric: tabular-nums; }
.signin-err {
  margin: 8px 0 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--bad);
}
.signin-actions { display: grid; gap: 8px; margin-top: 12px; }
.stats-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}
.due-line {
  background: #fff8d6;
  border: 1px solid #ffe08a;
  padding: 10px 12px;
  border-radius: 14px;
  font-weight: 600;
  font-size: 14px;
}

.help-ko, .hint, .tap-word-hint, .tiny {
  text-align: center;
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.35;
}
.hint { color: var(--ink); font-weight: 600; }
.screen-kicker, .set-title {
  text-align: center;
  margin: 4px 0 10px;
  letter-spacing: -0.03em;
}
.set-title { font-size: 28px; font-weight: 700; }

.home-stack { display: grid; gap: 10px; }
.home-stack.tight { margin-top: 8px; flex: 0 0 auto; }

.chunk, .mod {
  display: grid;
  gap: 2px;
  text-align: left;
  min-height: 64px;
  padding: 14px 16px;
  border-radius: 18px;
  background: var(--card);
  border: 2px solid var(--line);
  color: var(--ink);
  box-shadow: 0 1px 0 rgba(0,0,0,0.08);
}
.chunk.primary, .btn {
  display: grid;
  width: 100%;
  background: var(--navy);
  color: #fff;
  border: 0;
  border-radius: 18px;
  padding: 14px 16px;
  margin: 0;
  font-weight: 600;
  font-size: 17px;
  text-align: left;
}
#btn-name-go, #btn-paste-go, #btn-test-home, #btn-listen-home {
  display: block;
  text-align: center;
  border-radius: 980px;
  padding: 16px;
}
.chunk.primary em, .chunk.primary .chip-tag { color: rgba(255,255,255,.85); }
.chunk.continue { background: #fff; border-color: var(--navy); }
.chunk.continue strong, .chunk.continue em { color: var(--ink); }
.chunk.continue .chip-tag { background: var(--navy); color: #fff; }
.chunk.test:disabled, .chunk.disabled { background: #eee; }
.chunk.test.picked { outline: 2px solid var(--navy); outline-offset: 2px; }
.chunk strong { font-size: 17px; font-weight: 700; }
.chunk em { font-style: normal; color: var(--ink); font-size: 13px; font-weight: 600; }
.chip-tag {
  display: inline-block;
  width: fit-content;
  background: #111;
  color: #fff;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 980px;
  font-weight: 800;
}
.chunk.primary .chip-tag { background: rgba(255,255,255,.18); color: #fff; }

#progress-ribbon {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 6px;
  flex: 0 0 auto;
}
.rib {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 8px 2px;
  text-align: center;
}
.rib b { display: block; font-size: 13px; }
.rib span { font-size: 10px; color: var(--muted); }
.rib.done { border-color: #b7f0c8; background: #eefbf3; }
.rib.done i { display: block; font-style: normal; color: #248a3d; }
.rib.done i::after { content: "✓"; }
.rib.now { border-color: var(--navy); background: #e8f1ff; }
body.is-teacher .rib { cursor: pointer; }
.rib.locked {
  opacity: 0.55;
  background: #f3f1ec;
  color: var(--muted);
}
.rib.locked b::after {
  content: " \1F512";
  font-size: 10px;
}
.chunk.locked,
.slot.locked { opacity: 0.55; }
.path-lock-note {
  margin: 0;
  padding: 8px 12px;
  text-align: center;
  font-size: 14px;
  font-weight: 700;
  color: #9a3412;
  background: #fff7ed;
}
.path-lock-note[hidden] { display: none; }
.path-lock-note { border-bottom: 1px solid #fed7aa; }
.pct-line { text-align: center; margin: 8px 0 0; color: var(--muted); font-size: 13px; }

.standing {
  margin: 10px 0 12px;
  padding: 12px;
  border-radius: 16px;
  background: #fff;
  border: 2px solid var(--navy);
  box-shadow: 0 1px 0 rgba(0,0,0,0.08);
  flex: 0 0 auto;
}
.standing-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
}
.standing-head strong {
  color: var(--navy);
  font-size: 15px;
  font-weight: 800;
}
.standing-head em {
  font-style: normal;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-align: right;
}
.standing-bar {
  height: 8px;
  margin: 8px 0;
  border-radius: 980px;
  background: #ececec;
  overflow: hidden;
}
.standing-bar i {
  display: block;
  height: 100%;
  width: 0;
  background: var(--gold);
  border-radius: 980px;
}
.standing-next, .standing-sync {
  margin: 6px 0 0;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink);
}
.standing-sync { color: var(--muted); font-weight: 600; font-size: 12px; }
.save-warn { color: #9a3412; }
.progress-too-large-warn {
  margin: 8px 12px 0;
  font-size: 14px;
  line-height: 1.4;
  color: #9a3412;
  text-align: center;
}
.standing-hint, .standing-slice {
  margin: 8px 0 0;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
}
.standing-hint { text-align: center; }
.standing-seat-row {
  display: flex;
  flex-wrap: nowrap;
  align-items: flex-end;
  gap: 6px;
  margin-top: 8px;
}
.standing-seats {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: 6px;
  flex: 1 1 auto;
  min-width: 0;
  max-height: 220px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
@media (max-height: 700px) {
  .standing-seats { max-height: 112px; }
}
.seat-all-slot {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
button.seat {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  min-width: 28px;
  min-height: 28px;
  padding: 0;
  border-radius: 6px;
  border: 1px solid transparent;
  background: #ececec;
  color: #8e8e93;
  font-size: 13px;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
}
button.seat.done { background: #b7f0c8; color: var(--ok-ink); border-color: #8ed7a4; }
button.seat.doing {
  background: #fff;
  color: var(--navy);
  border-color: var(--gold);
  box-shadow: 0 0 0 2px var(--gold);
}
button.seat.done.doing {
  background: #b7f0c8;
  color: var(--ok-ink);
  border-color: var(--gold);
  box-shadow: 0 0 0 2px var(--gold);
}
button.seat.todo { background: #ececec; color: #8e8e93; }
button.seat.seat-all,
button.seat.seat-all-choice {
  width: auto;
  min-width: 64px;
  height: 36px;
  padding: 0 12px;
  background: var(--gold);
  color: var(--navy);
  border-color: var(--navy);
  font-size: 15px;
}
button.seat.seat-all-choice {
  background: #fff;
}
.chunk.final {
  background: var(--gold);
  border-color: var(--navy);
}
.chunk.final strong { color: var(--navy); }
.chunk.final em { color: var(--navy2); }
.miss-list {
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
  text-align: center;
}
.miss-list li { color: var(--bad); font-weight: 700; font-size: 15px; }
@media (max-width: 360px) {
  .standing { padding: 10px; }
  .standing-head { align-items: flex-start; }
  .standing-head strong { font-size: 14px; }
}

.word-list, .intro-list {
  display: grid;
  gap: 8px;
  margin: 8px 0;
  overflow: auto;
  flex: 1;
  min-height: 0;
}
.word-row, .intro-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  align-items: center;
  gap: 8px;
  width: 100%;
  text-align: left;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 10px 12px;
  min-height: 44px;
}
.intro-en, .word-row .en {
  font-weight: 700;
  font-size: 17px;
  color: var(--ink);
  background: none;
  text-align: left;
}
.intro-ko, .word-row .meaning { color: var(--muted); font-size: 15px; text-align: center; }

.study-size {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  margin: 0 0 10px;
}
#study-size {
  flex: 0 0 auto;
  position: sticky;
  top: 0;
  z-index: 6;
  background: var(--bg);
  padding: 4px 0 6px;
}
.study-from {
  margin: 0;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
}
.study-size button {
  min-width: 52px;
  min-height: 44px;
  border-radius: 14px;
  background: #ececec;
  color: var(--ink);
  font-weight: 800;
  font-size: 18px;
}
.study-size button.on {
  background: var(--navy);
  color: #fff;
}

.tapmap {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
  min-height: 0;
}
.tap-prompt {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
}
.tap-prompt .prompt-en {
  margin: 0;
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.04em;
}
.tap-grid {
  display: grid;
  gap: 8px;
  flex: 1;
  min-height: 0;
  align-content: stretch;
}
.tap-grid[data-n="5"] { grid-template-columns: repeat(2, 1fr); }
.tap-grid[data-n="10"] { grid-template-columns: repeat(2, 1fr); }
.tap-grid[data-n="15"] { grid-template-columns: repeat(3, 1fr); }
.tap-grid[data-n="20"] { grid-template-columns: repeat(4, 1fr); }
@media (min-width: 420px) {
  .tap-grid[data-n="10"] { grid-template-columns: repeat(5, 1fr); }
  .tap-grid[data-n="15"] { grid-template-columns: repeat(5, 1fr); }
  .tap-grid[data-n="20"] { grid-template-columns: repeat(5, 1fr); }
}
.tap-tile {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
  border: 3px solid transparent;
  box-shadow: var(--shadow);
  min-height: 0;
  padding: 0;
}
.tap-tile img {
  width: 100%;
  height: 100%;
  max-height: 110px;
  object-fit: contain;
  display: block;
  aspect-ratio: 1;
  background: #f3f3f3;
}
.tap-tile .lab {
  position: absolute;
  left: 6px;
  right: 6px;
  bottom: 6px;
  background: rgba(0,0,0,.72);
  color: #fff;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 6px;
  text-align: center;
}
.tap-tile.found { border-color: var(--ok); }
.tap-tile.on { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(255,214,10,.45); }
.tap-tile.wrong { border-color: var(--bad); }

.meet-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 10px 12px;
  text-align: center;
  box-shadow: var(--shadow);
  overflow: auto;
  flex: 1;
  min-height: 0;
}
.meet-pic {
  width: auto;
  height: auto;
  max-width: 140px;
  max-height: 96px;
  object-fit: contain;
  object-position: center;
  margin: 0 auto 4px;
  border-radius: 12px;
  background: #f3f3f3;
  display: block;
}
.meet-en {
  display: block;
  width: 100%;
  margin: 6px 0 0;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.04em;
}
.meet-ko { margin: 2px 0 8px; font-size: 16px; color: var(--muted); }
.meet-ww { text-align: left; margin: 0 0 8px; }
.ww-pos {
  margin: 0 0 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--navy);
}
.ww-def {
  margin: 0 0 6px;
  font-size: 15px;
  line-height: 1.25;
  color: var(--ink);
  font-weight: 600;
}
.ww-ex {
  display: block;
  width: 100%;
  text-align: left;
  background: #1d3557;
  color: #f4d35e;
  border-radius: 12px;
  padding: 8px 10px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.3;
  min-height: 44px;
}
.ww-ex-l1 {
  margin: 4px 0 6px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.25;
}
.ww-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.ww-chip {
  display: inline-block;
  background: #ececec;
  color: var(--ink);
  border-radius: 980px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
}
.meet-built, .meet-pool {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  min-height: 48px;
}
.meet-built { border-bottom: 2px dashed var(--line); padding-bottom: 10px; margin-bottom: 10px; }
.tile {
  width: 44px; height: 48px; border-radius: 12px;
  background: var(--navy); color: #fff; font-weight: 700; font-size: 20px;
}
.tile.ghost { background: #ececec; color: transparent; }

.learn-hud { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex: 0 0 auto; }
.mode-pill {
  display: flex; align-items: center; gap: 8px;
  background: #1d1d1f; color: #fff;
  border-radius: 980px; padding: 4px 12px 4px 4px;
  font-size: 13px; font-weight: 600;
}
.mode-pill b {
  width: 28px; height: 28px; display: grid; place-items: center;
  background: #fff; color: var(--ink); border-radius: 50%; font-size: 13px;
}
.test-pill { background: var(--navy); }
.prog-text { margin: 0; font-size: 13px; text-align: right; color: var(--muted); }

.card-stage { flex: 1; min-height: 0; display: flex; flex-direction: column; justify-content: center; }
.card, .sticker-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 22px;
  min-height: 96px;
  padding: 16px 14px 14px;
  text-align: center;
  margin: 8px 0;
  box-shadow: var(--shadow);
  flex: 0 0 auto;
}
.speaker {
  position: absolute;
  top: 10px; left: 10px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: #f5f5f7;
  color: var(--ink);
  border: 1px solid var(--line);
  font-size: 18px;
}
.speaker.huge {
  position: static;
  width: 88px; height: 88px;
  margin: 8px auto;
  display: grid;
  place-items: center;
  font-size: 32px;
}
.prompt-en {
  margin: 28px 0 0;
  font-size: clamp(28px, 8vw, 40px);
  font-weight: 700;
  letter-spacing: -0.04em;
}
.prompt-ko { margin: 28px 0 0; font-size: clamp(22px, 7vw, 32px); font-weight: 600; }
.caption-fallback { margin: 8px 0 0; font-size: 22px; color: var(--muted); }
.typed {
  margin: 16px 8px 0;
  min-height: 52px;
  border: 2px solid var(--navy);
  border-radius: 14px;
  background: #fff;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.06em;
  display: grid;
  place-items: center;
}
.caret {
  display: inline-block; width: 2px; height: 1.1em;
  background: var(--navy); margin-left: 2px; animation: blink 1s infinite;
}
@keyframes blink { 50% { opacity: .25; } }
.letter-rail { display: flex; justify-content: center; gap: 6px; flex-wrap: wrap; margin-top: 12px; }
.letter-rail span, .spellch {
  min-width: 28px; padding: 8px 6px; border-radius: 10px;
  background: #f5f5f7; font-size: 22px; font-weight: 800; text-align: center;
}
.letter-rail span.on, .spellch.on { background: var(--navy); color: #fff; }
.spellch.ok { background: var(--ok); color: #003d16; }
.spellch.bad { background: var(--bad); color: #fff; }
.letter-rail span.bad { color: #fff; background: var(--bad); }

.choices { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; flex: 0 0 auto; }
.choice {
  min-height: 56px;
  padding: 12px 8px;
  border-radius: 16px;
  background: var(--navy);
  color: #fff;
  font-weight: 600;
  font-size: 17px;
  cursor: default;
  opacity: 1;
}
.choice:disabled,
.choice.good,
.choice.bad {
  cursor: default;
  opacity: 1;
}
.choice.en { font-size: 18px; }
.choice.good { background: #248a3d; }
.choice.bad { background: var(--bad); }

/* Dictation dock — always on-screen, never covered */
.az-wrap, .lockpad {
  margin-top: auto;
  flex: 0 0 auto;
  background: #ececec;
  border-radius: 18px 18px 0 0;
  padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
  box-shadow: 0 -8px 24px rgba(0,0,0,0.06);
}
.az-pad, .lockkeys {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 5px;
}
body.kb-desk .az-pad {
  display: none !important;
}
.az-key, .kbtn {
  min-height: 38px;
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  font-weight: 700;
  font-size: 16px;
  box-shadow: 0 1px 0 rgba(0,0,0,0.12);
}
.az-row, .lockrow {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 8px;
  margin-top: 8px;
}
.az-fn {
  background: #d1d1d6;
  color: var(--ink);
  min-height: 48px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 17px;
}
.az-fn.ok { background: var(--ok); color: #003d16; }

.game-slots { display: grid; gap: 10px; overflow: auto; flex: 1; min-height: 0; }
.slot {
  display: grid;
  grid-template-columns: 48px 1fr;
  column-gap: 12px;
  text-align: left;
  min-height: 72px;
  padding: 14px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid var(--line);
}
.slot b {
  width: 42px; height: 42px; display: grid; place-items: center;
  background: var(--navy); color: #fff; border-radius: 14px; font-weight: 700;
}
.slot em { font-style: normal; color: var(--muted); }
.match-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; overflow: auto; flex: 1; min-height: 0; }
.match-tile {
  min-height: 64px; border-radius: 14px; border: 1px solid var(--line);
  background: #fff; font-size: 16px; padding: 8px; font-weight: 600;
}
.match-tile.picked { border-color: var(--navy); background: #e8f1ff; }
.match-tile.matched { visibility: hidden; }
.win-line { text-align: center; }
.scoreboard {
  margin-top: 12px; background: #fff; border: 1px solid var(--line);
  border-radius: 18px; padding: 18px; text-align: center;
}
.forever-box { display: block; margin: 12px 0; font-size: 14px; line-height: 1.35; text-align: left; }

.burst, .flash {
  position: absolute; inset: 0; z-index: 20;
  display: grid; place-items: center;
  pointer-events: none;
}
.flash.ok { background: transparent; display: block; }
.flash.bad { background: rgba(255,59,48,.22); }
.flash .mark, .burst-msg {
  width: 96px; height: 96px; border-radius: 50%;
  display: grid; place-items: center;
  font-size: 56px; font-weight: 800; color: #fff;
}
.flash.ok .mark {
  position: absolute;
  top: calc(10px + env(safe-area-inset-top));
  right: 12px;
  width: 52px;
  height: 52px;
  font-size: 28px;
  background: #248a3d;
}
.flash.bad .mark { background: var(--bad); }
.burst {
  inset: auto;
  top: calc(8px + env(safe-area-inset-top));
  left: 12px;
  right: 12px;
  height: auto;
  z-index: 40;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  background: none;
}
.burst-msg {
  width: auto; height: auto; border-radius: 980px;
  background: #ffe14a; color: #111; font-size: 18px;
  padding: 10px 16px; border: 3px solid #111;
  box-shadow: 0 4px 0 #111;
}
canvas.confetti {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 18;
  pointer-events: none;
}
.shake { animation: shake .35s ease; }
@keyframes shake {
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}
html[dir="rtl"] .chunk { text-align: right; }

/* Learn/test typing: pin dock, hide tester chrome */
.phone.play .stage { padding: 0; }
.phone.play #screen-learn.active,
.phone.play #screen-test.active {
  padding: 8px 12px 0;
}
#game-frame {
  flex: 1;
  width: 100%;
  min-height: 0;
  border: 0;
  background: #000;
  border-radius: 0;
}
#screen-playgame.active { padding: 0; }

.path-note {
  margin: 0 0 10px;
  padding: 8px 10px;
  border: 2px solid #111;
  border-radius: 12px;
  background: #fff8d6;
  font-size: 13px;
  font-weight: 800;
  line-height: 1.35;
  text-align: center;
}
.index-lanes { display: grid; gap: 10px; }
.lane {
  border: 3px solid #111;
  border-radius: 16px;
  padding: 10px;
}
.lane h3 {
  margin: 0 0 8px;
  font-size: 18px;
  letter-spacing: -0.02em;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.lane h3 em { font-style: normal; font-size: 13px; font-weight: 700; }
.lane-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.lane-little .lane-grid { grid-template-columns: 1fr; }
.pack-tile {
  display: grid;
  grid-template-columns: 28px 1fr;
  grid-template-rows: auto auto;
  column-gap: 8px;
  align-items: center;
  min-height: 64px;
  padding: 8px 10px;
  border-radius: 12px;
  border: 2px solid #111;
  background: #fff;
  text-align: left;
  color: #111;
}
.pack-tile b {
  grid-row: 1 / span 2;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #111;
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 13px;
}
.pack-tile strong { font-size: 16px; font-weight: 800; }
.pack-tile em { font-style: normal; font-size: 12px; font-weight: 700; color: #333; }
.pack-tile.is-next {
  outline: 3px solid #f5c400;
  outline-offset: 1px;
  box-shadow: 0 0 0 2px #111;
}
.pack-tile.is-next b { background: #0033b8; }
.pack-tile.is-done { opacity: 0.72; }
.pack-tile.is-done b { background: #0b7a2b; }
.lane-nouns { background: #d9e8ff; }
.lane-verbs { background: #ffe0cc; }
.lane-adj { background: #d9f5df; }
.lane-little { background: #ffe98a; }
.lane-adv { background: #ead9ff; }
.lane-toeic { background: #c8f3ea; }
a.pack-tile { text-decoration: none; color: inherit; }
@media (min-width: 700px) {
  .index-lanes { grid-template-columns: 1fr 1fr; }
  .lane-little, .lane-adv { grid-column: span 1; }
  .lane-grid { grid-template-columns: repeat(3, 1fr); }
}