:root {
  --pink-50: #fff3f9;
  --pink-100: #ffe0ef;
  --pink-200: #ffc2df;
  --pink-300: #ff9ccb;
  --pink-500: #ff5fa8;
  --pink-600: #ec3d8f;
  --pink-700: #c9257a;
  --purple: #a66bff;
  --ink: #4b1f3d;
  --ink-soft: #8a5a78;
  --green: #22b981;
  --green-bg: #dcfaee;
  --amber: #ffb020;
  --amber-bg: #fff3d6;
  --yellow: #ffd34e;
  --white: #fff;
  --shadow: 0 6px 0 rgba(201, 37, 122, .18), 0 14px 30px rgba(236, 61, 143, .16);
  --r: 22px;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; }
body {
  font-family: 'Fredoka', 'Trebuchet MS', system-ui, sans-serif;
  color: var(--ink);
  background: var(--pink-50);
  min-height: 100vh;
  font-size: 17px;
  line-height: 1.4;
  overflow-x: hidden;
}
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
h1, h2, h3, p { margin: 0; }

/* dreamy pink background */
.bg {
  position: fixed; inset: 0; z-index: -1;
  background:
    radial-gradient(40vmax 40vmax at 8% 0%, #ffd0e8 0%, transparent 60%),
    radial-gradient(45vmax 45vmax at 100% 20%, #ecd9ff 0%, transparent 60%),
    radial-gradient(50vmax 50vmax at 30% 100%, #ffe3c9 0%, transparent 60%),
    var(--pink-50);
}
.bg::before, .bg::after {
  content: '✦  ✧     ✦        ✧   ✦'; position: absolute; left: 0; right: 0; top: 12%;
  font-size: 22px; color: var(--pink-300); letter-spacing: 9vw; white-space: nowrap; opacity: .55;
  animation: twinkle 4s ease-in-out infinite;
}
.bg::after { top: 62%; color: var(--purple); opacity: .3; animation-delay: 2s; letter-spacing: 13vw; }
@keyframes twinkle { 50% { opacity: .15; transform: translateY(8px) scale(.96); } }

#fx { position: fixed; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 50; }

/* header */
#top {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 10px;
  padding: 10px max(14px, env(safe-area-inset-left));
  background: rgba(255, 243, 249, .86); backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--pink-100);
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 1.1rem; color: var(--pink-600); margin-right: auto; }
.brand .logo { font-size: 1.7rem; animation: bob 3s ease-in-out infinite; }
@keyframes bob { 50% { transform: translateY(-4px) rotate(-6deg); } }
.pill {
  display: flex; align-items: center; gap: 5px; padding: 6px 12px; border-radius: 999px;
  background: var(--white); font-weight: 600; box-shadow: 0 2px 0 var(--pink-200); white-space: nowrap;
}
.pill.flame { color: #ff7a1a; }
.pill.icon { width: 40px; height: 40px; justify-content: center; padding: 0; font-size: 1.15rem; }
.xpbar { width: 86px; height: 10px; background: var(--pink-100); border-radius: 99px; overflow: hidden; }
.xpbar i { display: block; height: 100%; background: linear-gradient(90deg, var(--pink-500), var(--purple)); border-radius: 99px; transition: width .6s cubic-bezier(.2, 1.4, .4, 1); }
@media (max-width: 520px) { .brand span.name { display: none; } .xpbar { width: 54px; } }

main { max-width: 860px; margin: 0 auto; padding: 18px 14px 110px; }
.view { animation: rise .35s ease both; }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } }

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 24px; border-radius: 18px; font-weight: 700; font-size: 1.05rem;
  background: var(--pink-500); color: var(--white);
  box-shadow: 0 5px 0 var(--pink-700); transition: transform .08s, box-shadow .08s, filter .15s;
}
.btn:hover { filter: brightness(1.06); }
.btn:active { transform: translateY(4px); box-shadow: 0 1px 0 var(--pink-700); }
.btn[disabled] { background: var(--pink-200); box-shadow: 0 5px 0 var(--pink-300); cursor: not-allowed; }
.btn.ghost { background: var(--white); color: var(--pink-600); box-shadow: 0 5px 0 var(--pink-200); }
.btn.big { width: 100%; padding: 17px; font-size: 1.15rem; }
.back { font-weight: 600; color: var(--pink-600); padding: 8px 4px; }

/* home */
.hero {
  display: flex; align-items: center; gap: 16px; padding: 20px; border-radius: 28px; color: var(--white);
  background: linear-gradient(120deg, var(--pink-500), #ff86b9 55%, var(--purple));
  box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.hero::after { content: '✨'; position: absolute; right: 12px; bottom: 8px; font-size: 1.7rem; animation: twinkle 2.4s infinite; }
.hero .mascot { font-size: 4.2rem; animation: bob 3s ease-in-out infinite; flex: none; }
.hero h1 { font-size: 1.7rem; line-height: 1.15; }
.hero p { opacity: .95; margin-top: 4px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 14px 0 22px; }
.stat { background: var(--white); border-radius: var(--r); padding: 12px; text-align: center; box-shadow: 0 4px 0 var(--pink-100); }
.stat b { display: block; font-size: 1.45rem; color: var(--pink-600); }
.stat span { font-size: .85rem; color: var(--ink-soft); }
h2.sec { font-size: 1.25rem; margin: 6px 4px 12px; }

.chapters { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.chap {
  text-align: left; background: var(--white); border-radius: 26px; padding: 16px; box-shadow: var(--shadow);
  display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; align-items: center;
  transition: transform .15s; position: relative;
}
.chap:hover { transform: translateY(-4px) rotate(-.6deg); }
.chap .em {
  grid-row: span 2; width: 62px; height: 62px; border-radius: 20px; display: grid; place-items: center; font-size: 2rem;
  background: linear-gradient(140deg, var(--pink-100), #f0e2ff);
}
.chap .num { font-size: .78rem; font-weight: 700; color: var(--pink-500); text-transform: uppercase; letter-spacing: .06em; }
.chap h3 { font-size: 1.2rem; line-height: 1.15; }
.chap .sub { grid-column: 1 / -1; color: var(--ink-soft); font-size: .92rem; margin-top: 6px; }
.chap .meta { grid-column: 1 / -1; display: flex; align-items: center; gap: 10px; margin-top: 8px; }
.stars { letter-spacing: 2px; font-size: 1.15rem; color: var(--pink-200); }
.stars .on { color: var(--yellow); text-shadow: 0 1px 0 #d99a00; }
.prog { flex: 1; height: 9px; background: var(--pink-100); border-radius: 99px; overflow: hidden; }
.prog i { display: block; height: 100%; background: linear-gradient(90deg, var(--pink-300), var(--pink-500)); border-radius: 99px; }
.chap .done { position: absolute; top: -8px; right: -6px; font-size: 1.6rem; transform: rotate(14deg); }

.badges { display: grid; grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: 10px; margin-top: 10px; }
.badge { background: var(--white); border-radius: 18px; padding: 10px 6px; text-align: center; font-size: .78rem; color: var(--ink-soft); box-shadow: 0 3px 0 var(--pink-100); }
.badge b { display: block; font-size: 1.9rem; }
.badge.locked { opacity: .45; filter: grayscale(1); }
.note { margin-top: 22px; font-size: .85rem; color: var(--ink-soft); text-align: center; }
.note button { text-decoration: underline; color: inherit; }

/* chapter */
.chead { display: flex; align-items: center; gap: 12px; margin: 4px 0 14px; }
.chead .em { font-size: 2.4rem; }
.chead h1 { font-size: 1.6rem; line-height: 1.1; }
.chead p { color: var(--ink-soft); }
.tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; background: var(--white); padding: 6px; border-radius: 20px; box-shadow: 0 4px 0 var(--pink-100); margin-bottom: 16px; }
.tab { padding: 11px 6px; border-radius: 15px; font-weight: 700; color: var(--ink-soft); }
.tab.on { background: var(--pink-500); color: var(--white); box-shadow: 0 3px 0 var(--pink-700); }

.card { background: var(--white); border-radius: 28px; padding: 20px; box-shadow: var(--shadow); }
.lcard h2 { font-size: 1.4rem; display: flex; align-items: center; gap: 10px; }
.lcard h2 .ic { font-size: 1.8rem; }
.lcard > p { margin: 8px 0 14px; color: var(--ink-soft); font-size: 1.05rem; }
.lcard b { color: var(--pink-600); }
.items { display: grid; gap: 10px; }
.items.grid { grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); }
.item {
  display: flex; align-items: center; gap: 12px; text-align: left; width: 100%;
  background: var(--pink-50); border: 2px solid var(--pink-100); border-radius: 18px; padding: 11px 14px;
  transition: transform .12s, border-color .12s, background .12s;
}
.item:hover { border-color: var(--pink-300); transform: scale(1.015); }
.item.playing { background: var(--pink-100); border-color: var(--pink-500); animation: pulse .7s ease infinite; }
@keyframes pulse { 50% { transform: scale(1.03); } }
.item .e { font-size: 1.6rem; flex: none; }
.item .es { font-weight: 700; font-size: 1.15rem; color: var(--pink-700); }
.item .en { font-size: .92rem; color: var(--ink-soft); }
.item .spk { margin-left: auto; opacity: .55; flex: none; }
.items.grid .item { flex-direction: column; gap: 2px; text-align: center; padding: 10px 6px; }
.items.grid .item .spk { display: none; }
.tip { margin-top: 14px; background: var(--amber-bg); border-radius: 16px; padding: 12px 14px; font-size: .97rem; }
.tip::before { content: '💡 '; }
.lnav { display: flex; align-items: center; gap: 12px; margin-top: 16px; }
.dots { display: flex; gap: 6px; margin: 0 auto; }
.dots i { width: 10px; height: 10px; border-radius: 50%; background: var(--pink-200); transition: all .2s; }
.dots i.on { background: var(--pink-500); width: 24px; border-radius: 6px; }

.center { text-align: center; }
.intro .big-em { font-size: 4.5rem; animation: bob 3s ease-in-out infinite; }
.intro h2 { font-size: 1.5rem; margin: 6px 0; }
.intro p { color: var(--ink-soft); margin-bottom: 16px; }
.intro .stars { font-size: 2.2rem; margin-bottom: 10px; }

/* speak */
.sp { display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; align-items: center; margin-bottom: 12px; padding: 16px; }
.sp .es { font-weight: 700; font-size: 1.25rem; color: var(--pink-700); }
.sp .en { color: var(--ink-soft); font-size: .95rem; }
.sp .acts { display: flex; gap: 8px; }
.round {
  width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center; font-size: 1.45rem;
  background: var(--pink-100); box-shadow: 0 4px 0 var(--pink-200); transition: transform .08s, box-shadow .08s;
}
.round:active { transform: translateY(3px); box-shadow: 0 1px 0 var(--pink-200); }
.round.mic { background: var(--pink-500); box-shadow: 0 4px 0 var(--pink-700); }
.round.rec { background: #ff3b5c; animation: ring 1s ease infinite; }
.round.busy { animation: spin 1s linear infinite; }
@keyframes ring { 0% { box-shadow: 0 0 0 0 rgba(255, 59, 92, .6); } 100% { box-shadow: 0 0 0 18px rgba(255, 59, 92, 0); } }
@keyframes spin { to { transform: rotate(360deg); } }
.sp .res { grid-column: 1 / -1; border-radius: 16px; padding: 10px 14px; font-size: .97rem; animation: rise .3s ease both; }
.sp .res.good { background: var(--green-bg); }
.sp .res.mid { background: var(--amber-bg); }
.sp .res b { font-size: 1.1rem; }
.sp .best { font-size: .85rem; font-weight: 700; color: var(--green); }

/* quiz */
.qtop { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.qtop .x { font-size: 1.4rem; color: var(--ink-soft); width: 40px; height: 40px; }
.qbar { flex: 1; height: 16px; background: var(--white); border-radius: 99px; overflow: hidden; box-shadow: inset 0 2px 0 var(--pink-100); }
.qbar i { display: block; height: 100%; background: linear-gradient(90deg, var(--pink-500), var(--purple)); border-radius: 99px; transition: width .5s cubic-bezier(.2, 1.4, .4, 1); }
.combo { font-weight: 700; color: #ff7a1a; min-width: 48px; text-align: right; }
.combo.pop { animation: pop .4s; }
@keyframes pop { 40% { transform: scale(1.5) rotate(-8deg); } }
.q h2 { font-size: 1.25rem; color: var(--ink-soft); font-weight: 600; }
.q .bigword { display: flex; align-items: center; gap: 12px; font-size: clamp(1.6rem, 6vw, 2.3rem); font-weight: 700; color: var(--pink-700); margin: 10px 0 18px; line-height: 1.2; }
.q .hint { color: var(--ink-soft); margin: -10px 0 16px; }
.q .blank { display: inline-block; min-width: 70px; border-bottom: 4px dashed var(--pink-300); text-align: center; color: var(--green); }
.listenbtn { width: 96px; height: 96px; border-radius: 30px; font-size: 2.6rem; background: var(--pink-500); box-shadow: 0 6px 0 var(--pink-700); margin: 14px 0 20px; }
.listenbtn:active { transform: translateY(4px); box-shadow: 0 2px 0 var(--pink-700); }
.opts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
@media (max-width: 480px) { .opts.long { grid-template-columns: 1fr; } }
.opt {
  background: var(--white); border: 3px solid var(--pink-100); border-radius: 18px; padding: 15px 10px;
  font-weight: 600; font-size: 1.08rem; box-shadow: 0 4px 0 var(--pink-100); transition: transform .08s, border-color .12s;
}
.opt:hover { border-color: var(--pink-300); }
.opt:active { transform: translateY(3px); }
.opt.right { background: var(--green-bg); border-color: var(--green); box-shadow: 0 4px 0 var(--green); animation: pop .4s; }
.opt.wrong { background: var(--amber-bg); border-color: var(--amber); box-shadow: 0 4px 0 var(--amber); animation: shake .4s; }
.opt.sel { border-color: var(--pink-500); background: var(--pink-100); }
.opt.gone { visibility: hidden; }
@keyframes shake { 25% { transform: translateX(-7px); } 75% { transform: translateX(7px); } }
.locked .opt, .locked .tile { pointer-events: none; }
.match { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.line { min-height: 64px; border-bottom: 3px dashed var(--pink-200); display: flex; flex-wrap: wrap; gap: 8px; padding: 8px 0 12px; margin-bottom: 16px; align-items: center; }
.bank { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.tile { background: var(--white); border: 3px solid var(--pink-200); border-radius: 14px; padding: 9px 14px; font-weight: 700; font-size: 1.1rem; box-shadow: 0 4px 0 var(--pink-200); animation: rise .2s ease both; }
.tile.used { opacity: .25; pointer-events: none; }

.fb {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; padding: 16px max(16px, env(safe-area-inset-left)) calc(16px + env(safe-area-inset-bottom));
  animation: slideup .3s cubic-bezier(.2, 1.3, .4, 1) both;
}
.fb.good { background: var(--green-bg); border-top: 3px solid var(--green); }
.fb.oops { background: var(--amber-bg); border-top: 3px solid var(--amber); }
.fb .in { max-width: 832px; margin: 0 auto; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.fb h3 { font-size: 1.25rem; }
.fb p { font-size: 1rem; }
.fb .txt { flex: 1; min-width: 200px; }
.fb.good .btn { background: var(--green); box-shadow: 0 5px 0 #14855c; }
.fb.oops .btn { background: var(--amber); box-shadow: 0 5px 0 #c98200; }
@keyframes slideup { from { transform: translateY(100%); } }

/* results */
.result .stars { font-size: 3.6rem; letter-spacing: 6px; }
.result .stars span { display: inline-block; }
.result .stars .on { animation: starin .6s cubic-bezier(.2, 1.6, .4, 1) both; }
.result .stars .on:nth-child(2) { animation-delay: .25s; }
.result .stars .on:nth-child(3) { animation-delay: .5s; }
@keyframes starin { from { transform: scale(0) rotate(-180deg); } }
.result h1 { font-size: 1.9rem; margin: 8px 0; color: var(--pink-600); }
.result .row { display: flex; gap: 10px; justify-content: center; margin: 16px 0 20px; flex-wrap: wrap; }
.result .chip { background: var(--pink-50); border-radius: 16px; padding: 10px 18px; font-weight: 700; }
.result .btns { display: grid; gap: 12px; }

/* toasts */
#toasts { position: fixed; top: 74px; left: 0; right: 0; z-index: 60; display: grid; justify-items: center; gap: 8px; pointer-events: none; }
.toast {
  background: var(--white); border: 3px solid var(--pink-300); border-radius: 999px; padding: 10px 22px; font-weight: 700; font-size: 1.1rem;
  color: var(--pink-600); box-shadow: var(--shadow); animation: toast 2.6s ease both; max-width: 92vw; text-align: center;
}
@keyframes toast { 0% { opacity: 0; transform: translateY(-20px) scale(.8); } 12% { opacity: 1; transform: none; } 85% { opacity: 1; } 100% { opacity: 0; transform: translateY(-14px); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}