@font-face { font-family: 'Andika'; src: url('../fonts/andika-400.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Andika'; src: url('../fonts/andika-700.woff2') format('woff2'); font-weight: 700; font-display: swap; }

:root {
  --sky: #dff3ff;
  --sky2: #c3e8ff;
  --grass: #4cb04f;
  --grass-d: #2f8a33;
  --sun: #ffc93c;
  --sun-d: #e0a800;
  --berry: #ff5d73;
  --grape: #7a5cff;
  --ink: #1d2a3a;
  --ink-soft: #5b6b7d;
  --card: #ffffff;
  --good: #34c759;
  --bad: #ff6b6b;
  --team: #e0457b;      /* letter teams, faded with mastery */
  --silent: #b8c2cc;
  --radius: 26px;
  --shadow: 0 6px 0 rgba(0, 0, 0, .12);
  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
  --read: 'Andika', 'ui-rounded', 'Comic Sans MS', system-ui, sans-serif;
  --ui: 'ui-rounded', 'SF Pro Rounded', 'Andika', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { height: 100%; background: var(--sky2); }
body { margin: 0; min-height: 100%; }
body {
  background: linear-gradient(180deg, var(--sky) 0%, var(--sky2) 100%);
  color: var(--ink);
  font-family: var(--ui);
  -webkit-user-select: none; user-select: none;
  -webkit-touch-callout: none;
  touch-action: manipulation;
  overscroll-behavior: none;
}
#app { min-height: 100%; }
button { font: inherit; color: inherit; border: 0; background: none; cursor: pointer; }
#confetti { position: fixed; inset: 0; pointer-events: none; z-index: 50; width: 100%; height: 100%; }

.screen {
  min-height: 100vh; min-height: 100dvh;
  display: flex; flex-direction: column;
  padding: calc(var(--safe-t) + 12px) 16px calc(var(--safe-b) + 16px);
  max-width: 820px; margin: 0 auto;
}
.topbar { display: flex; align-items: center; gap: 10px; min-height: 52px; }
.topbar .spacer { flex: 1; }
.icon-btn {
  width: 52px; height: 52px; border-radius: 18px; background: var(--card);
  box-shadow: var(--shadow); font-size: 26px; display: grid; place-items: center;
}
.icon-btn:active { transform: translateY(3px); box-shadow: 0 3px 0 rgba(0,0,0,.12); }
.progress { flex: 1; height: 18px; background: rgba(255,255,255,.7); border-radius: 99px; overflow: hidden; }
.progress > i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--grass), #8bd34f); border-radius: 99px; transition: width .4s; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 64px; padding: 0 28px; border-radius: 99px;
  font-size: 26px; font-weight: 800; color: #fff; background: var(--grass);
  box-shadow: 0 6px 0 var(--grass-d);
}
.btn:active { transform: translateY(4px); box-shadow: 0 2px 0 var(--grass-d); }
.btn.sun { background: var(--sun); color: var(--ink); box-shadow: 0 6px 0 var(--sun-d); }
.btn.ghost { background: #fff; color: var(--ink); box-shadow: var(--shadow); }
.btn.small { min-height: 48px; font-size: 18px; padding: 0 20px; }
.btn.big { min-height: 88px; font-size: 34px; padding: 0 44px; }
.btn[disabled] { opacity: .45; pointer-events: none; }

.center { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 22px; text-align: center; }
.prompt { font-size: 24px; font-weight: 700; color: var(--ink-soft); display: flex; align-items: center; gap: 10px; justify-content: center; }
.say-btn { font-size: 30px; width: 60px; height: 60px; border-radius: 50%; background: #fff; box-shadow: var(--shadow); display: inline-grid; place-items: center; }
.say-btn:active { transform: scale(.94); }

/* Home */
.home-title { font-size: 44px; font-weight: 900; margin: 6px 0 0; letter-spacing: -.5px; }
.mascot { font-size: 120px; line-height: 1; animation: bob 2.4s ease-in-out infinite; filter: drop-shadow(0 8px 0 rgba(0,0,0,.08)); }
.mascot.small { font-size: 64px; }
@keyframes bob { 0%, 100% { transform: translateY(0) } 50% { transform: translateY(-12px) } }
.bubble {
  background: #fff; border-radius: 24px; padding: 16px 22px; font-size: 22px; font-weight: 700;
  box-shadow: var(--shadow); max-width: 520px; position: relative;
}
.stat-row { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.chip { background: #fff; border-radius: 99px; padding: 8px 16px; font-weight: 800; font-size: 18px; box-shadow: var(--shadow); }
.home-actions { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }

/* Letters and words */
.glyph { font-family: var(--read); font-size: min(38vw, 220px); line-height: 1; font-weight: 700; color: var(--ink); }
.glyph-card {
  background: #fff; border-radius: 40px; padding: 10px 40px 26px; box-shadow: 0 10px 0 rgba(0,0,0,.1);
  display: grid; place-items: center; min-width: 220px; cursor: pointer;
}
.glyph-card:active { transform: scale(.97); }
.word { font-family: var(--read); font-weight: 700; font-size: min(18vw, 110px); line-height: 1.1; display: inline-flex; gap: 2px; letter-spacing: 1px; }
.word.sm { font-size: min(11vw, 64px); }
.word.xs { font-size: 34px; }
.tok { position: relative; border-radius: 12px; padding: 0 2px; transition: background .15s, transform .15s; }
.tok.team { color: var(--team); }
.tok.silent { color: var(--silent); }
.tok.lit { background: var(--sun); transform: translateY(-6px); }
.tok.heart::after { content: '♥'; position: absolute; top: -.2em; right: -.25em; font-size: .3em; color: var(--berry); }

.sentence { font-family: var(--read); font-weight: 700; font-size: min(9vw, 46px); line-height: 1.5; text-align: center; display: flex; flex-wrap: wrap; justify-content: center; gap: 0 .35em; max-width: 720px; }
.sentence .w { border-radius: 10px; padding: 0 3px; cursor: pointer; display: inline-flex; }
.sentence .w.lit { background: var(--sun); }
.story-pic { font-size: min(26vw, 150px); line-height: 1.1; }
.page-count { font-weight: 800; color: var(--ink-soft); }

/* Slider (finger under the word) */
.slide-wrap { width: min(92vw, 640px); display: flex; flex-direction: column; align-items: center; gap: 10px; }
.slide-track { position: relative; width: 100%; height: 76px; border-radius: 99px; background: rgba(255,255,255,.75); box-shadow: inset 0 4px 0 rgba(0,0,0,.06); touch-action: none; }
.slide-track::after { content: '➜'; position: absolute; right: 18px; top: 50%; transform: translateY(-50%); font-size: 30px; color: var(--silent); }
.slide-knob { position: absolute; top: 4px; left: 4px; width: 68px; height: 68px; border-radius: 50%; background: var(--grass); box-shadow: 0 5px 0 var(--grass-d); display: grid; place-items: center; font-size: 38px; touch-action: none; }
.slide-hint { font-size: 18px; color: var(--ink-soft); font-weight: 700; }

/* Choices */
.choices { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; width: min(92vw, 560px); }
.choices.three { grid-template-columns: repeat(3, minmax(0, 1fr)); width: min(96vw, 680px); }
.choices.one-row { grid-template-columns: repeat(auto-fit, minmax(0, 1fr)); }
.tile {
  background: #fff; border-radius: var(--radius); box-shadow: 0 8px 0 rgba(0,0,0,.1);
  min-height: 130px; display: grid; place-items: center; padding: 10px;
  font-family: var(--read); font-weight: 700; font-size: 64px; line-height: 1.1;
  transition: transform .12s, background .2s;
}
.tile.pic { font-size: 76px; }
.tile.wordtile { font-size: min(11vw, 54px); }
.tile:active { transform: translateY(4px); box-shadow: 0 4px 0 rgba(0,0,0,.1); }
.tile.correct { background: #d8f8df; box-shadow: 0 8px 0 var(--good); animation: pop .35s; }
.tile.wrong { background: #ffe0e0; animation: shake .4s; }
.tile.dim { opacity: .35; }
.waiting { opacity: .45; pointer-events: none; transition: opacity .3s; }
.tile.hint { outline: 5px dashed var(--good); outline-offset: 4px; }
@keyframes pop { 50% { transform: scale(1.08) } }
@keyframes shake { 20%, 60% { transform: translateX(-10px) } 40%, 80% { transform: translateX(10px) } }
.yn { display: flex; gap: 22px; }
.yn .tile { width: 150px; font-size: 80px; }

/* Voice blend bird */
.sky-box { position: relative; width: min(92vw, 640px); height: 190px; border-radius: 30px; background: linear-gradient(#bfe6ff, #eaf7ff); overflow: hidden; box-shadow: inset 0 -30px 0 #9fdc7a; }
.bird { position: absolute; left: 8%; font-size: 64px; transition: bottom .12s linear, left .1s linear, transform .3s; }
.bird.fall { transform: rotate(160deg); }
.meter { position: absolute; right: 12px; bottom: 40px; width: 14px; height: 120px; border-radius: 99px; background: rgba(255,255,255,.6); overflow: hidden; }
.meter i { position: absolute; bottom: 0; left: 0; right: 0; background: var(--grass); height: 0; }

/* Map */
.map { display: flex; flex-direction: column; gap: 10px; padding: 8px 0 40px; }
.stage-head { margin: 18px 0 4px; display: flex; align-items: center; gap: 12px; font-size: 24px; font-weight: 900; }
.stage-head small { font-size: 15px; font-weight: 700; color: var(--ink-soft); display: block; }
.pad-row { display: flex; }
.pad {
  width: 92px; height: 92px; border-radius: 50%; background: #9fdc7a; box-shadow: 0 7px 0 #6fb34a;
  display: grid; place-items: center; position: relative; font-size: 30px; font-weight: 900; color: #1f5e1f;
}
.pad.locked { background: #d8e3ea; box-shadow: 0 7px 0 #b3c1cc; color: #8fa0ae; }
.pad.current { background: var(--sun); box-shadow: 0 7px 0 var(--sun-d); animation: pulse 1.6s infinite; }
.pad .stars { position: absolute; bottom: -12px; font-size: 16px; white-space: nowrap; }
.pad .frog { position: absolute; top: -40px; font-size: 44px; animation: bob 2s infinite; }
.pad-label { font-size: 14px; font-weight: 800; color: var(--ink-soft); text-align: center; max-width: 140px; margin-top: 16px; }
.pad-cell { display: flex; flex-direction: column; align-items: center; }
@keyframes pulse { 0%, 100% { transform: scale(1) } 50% { transform: scale(1.07) } }

/* Reward */
.stars-big { font-size: 70px; letter-spacing: 8px; }
.stars-big span { display: inline-block; animation: starIn .5s both; }
.stars-big span.off { filter: grayscale(1); opacity: .3; }
@keyframes starIn { from { transform: scale(0) rotate(-90deg) } to { transform: scale(1) } }
.sticker-new { font-size: 130px; animation: pop .6s 2; }
.sticker-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(76px, 1fr)); gap: 12px; }
.sticker { background: #fff; border-radius: 22px; aspect-ratio: 1; display: grid; place-items: center; font-size: 46px; box-shadow: var(--shadow); }
.sticker.empty { background: rgba(255,255,255,.45); box-shadow: none; font-size: 28px; color: var(--silent); }

/* Parent zone */
.parent { font-family: system-ui, -apple-system, sans-serif; font-size: 16px; }
.parent h2 { font-size: 26px; margin: 8px 0; }
.parent h3 { font-size: 19px; margin: 22px 0 8px; }
.panel { background: #fff; border-radius: 20px; padding: 16px; box-shadow: 0 3px 0 rgba(0,0,0,.08); margin-bottom: 14px; }
.panel p { line-height: 1.45; margin: 6px 0; }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.row .grow { flex: 1; min-width: 0; }
.pbtn { background: var(--grape); color: #fff; font-weight: 700; border-radius: 12px; padding: 10px 14px; font-size: 15px; }
.pbtn.alt { background: #eef1f5; color: var(--ink); }
.pbtn.rec { background: var(--berry); }
.pbtn.rec.on { animation: pulse 1s infinite; }
.pbtn[disabled] { opacity: .4; }
input[type=text], select { font: inherit; padding: 10px 12px; border-radius: 12px; border: 2px solid #dde3ea; width: 100%; background: #fff; }
.snd-row { display: grid; grid-template-columns: 64px 1fr auto; gap: 12px; align-items: center; padding: 12px 0; border-bottom: 1px solid #eef1f5; }
.snd-row .g { font-family: var(--read); font-weight: 700; font-size: 34px; text-align: center; }
.snd-row .tip { font-size: 14px; color: var(--ink-soft); }
.snd-row .ok { color: var(--good); font-weight: 800; }
.mastery { display: grid; grid-template-columns: repeat(auto-fill, minmax(58px, 1fr)); gap: 8px; }
.mastery div { border-radius: 12px; padding: 6px 2px; text-align: center; font-family: var(--read); font-weight: 700; font-size: 20px; }
.mastery small { display: block; font-family: system-ui; font-size: 10px; font-weight: 600; }
.m0 { background: #eef1f5; color: #9aa7b4; } .m1 { background: #ffe9b0; } .m2 { background: #d4f1b8; } .m3 { background: #9fdc7a; }
.gate-q { font-size: 30px; font-weight: 800; }
.note { font-size: 14px; color: var(--ink-soft); }
.warn { background: #fff4d6; border-radius: 14px; padding: 10px 14px; font-size: 15px; }

.fade-in { animation: fadeIn .25s ease-out; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px) } to { opacity: 1; transform: none } }

@media (max-height: 700px) {
  .tile { min-height: 104px; font-size: 54px; }
  .tile.pic { font-size: 62px; }
  .glyph { font-size: min(32vw, 170px); }
}