/* ==========================================================================
   HSK1 · Repaso — estilos
   Paleta: papel de arroz, tinta, bermellón (朱红), oro y jade.
   ========================================================================== */

:root {
  --paper: #fbf6ec;
  --paper-2: #f4ecdc;
  --card: #fffdf8;
  --ink: #221b17;
  --ink-2: #5b4f47;
  --ink-3: #8a7d72;
  --line: #e6dac5;
  --red: #b8322a;
  --red-2: #d9483b;
  --red-soft: #f7e3df;
  --gold: #c9a227;
  --gold-soft: #f6edcf;
  --jade: #2e7d6b;
  --jade-soft: #dff0ea;
  --amber: #b7791f;
  --amber-soft: #fbefd8;
  --shadow: 0 1px 2px rgba(60, 30, 10, .06), 0 8px 24px rgba(60, 30, 10, .08);
  --shadow-lg: 0 2px 4px rgba(60, 30, 10, .08), 0 18px 48px rgba(60, 30, 10, .14);
  --radius: 16px;
  --font-ui: "Nunito", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-zh: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-brush: "Ma Shan Zheng", "Noto Serif SC", "KaiTi", "STKaiti", serif;
  --font-py: "Noto Sans", "Nunito", "Segoe UI", sans-serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #17120f;
    --paper-2: #211a16;
    --card: #231c18;
    --ink: #f3eadc;
    --ink-2: #cdbfae;
    --ink-3: #9d8f80;
    --line: #3a2f28;
    --red: #e0594b;
    --red-2: #f0705f;
    --red-soft: #3b1f1b;
    --gold: #e0bd4f;
    --gold-soft: #3a3120;
    --jade: #5cbfa6;
    --jade-soft: #193a32;
    --amber: #e9a94a;
    --amber-soft: #3a2c16;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .35);
    --shadow-lg: 0 2px 4px rgba(0, 0, 0, .35), 0 18px 48px rgba(0, 0, 0, .45);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #17120f;
  --paper-2: #211a16;
  --card: #231c18;
  --ink: #f3eadc;
  --ink-2: #cdbfae;
  --ink-3: #9d8f80;
  --line: #3a2f28;
  --red: #e0594b;
  --red-2: #f0705f;
  --red-soft: #3b1f1b;
  --gold: #e0bd4f;
  --gold-soft: #3a3120;
  --jade: #5cbfa6;
  --jade-soft: #193a32;
  --amber: #e9a94a;
  --amber-soft: #3a2c16;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .35);
  --shadow-lg: 0 2px 4px rgba(0, 0, 0, .35), 0 18px 48px rgba(0, 0, 0, .45);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-ui);
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(184, 50, 42, .05), transparent 40%),
    radial-gradient(circle at 88% 30%, rgba(201, 162, 39, .06), transparent 45%),
    url("../img/nubes.svg");
  background-size: auto, auto, 420px;
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
}
button, input, textarea, select { font: inherit; color: inherit; }
a { color: var(--red); }
.zh { font-family: var(--font-zh); }
.brush { font-family: var(--font-brush); font-weight: 400; }
.py { font-family: var(--font-py); }
.muted { color: var(--ink-3); }
.hidden { display: none !important; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* ----------------------------------------------------------------- cabecera */
.top {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.top::after {                         /* cenefa de celosía */
  content: ""; display: block; height: 6px;
  background:
    repeating-linear-gradient(90deg, var(--red) 0 10px, transparent 10px 14px, var(--gold) 14px 18px, transparent 18px 22px);
  opacity: .85;
}
.top-in {
  max-width: 1240px; margin: 0 auto; padding: 10px 16px;
  display: flex; align-items: center; gap: 14px;
}
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.seal {
  width: 42px; height: 42px; border-radius: 9px;
  background: var(--red); color: #fff8ef;
  display: grid; place-items: center;
  font-family: var(--font-brush); font-size: 30px; line-height: 1;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, .25), 0 2px 6px rgba(184, 50, 42, .35);
  transform: rotate(-4deg);
}
.logo-t { line-height: 1.1; white-space: nowrap; }
@media (max-width: 1320px) and (min-width: 901px) { .nav a .zh { display: none; } }
.logo-t b { display: block; font-size: 18px; letter-spacing: .2px; }
.logo-t span { font-size: 12.5px; color: var(--ink-3); }
.nav { margin-left: auto; display: flex; gap: 4px; flex-wrap: wrap; }
.nav a {
  text-decoration: none; color: var(--ink-2); font-weight: 700; font-size: 15px; white-space: nowrap;
  padding: 8px 11px; border-radius: 999px; display: flex; align-items: center; gap: 6px;
}
.nav a .zh { font-size: 15px; color: var(--red); }
.nav a:hover { background: var(--paper-2); }
.nav a.on { background: var(--red); color: #fff; }
.nav a.on .zh { color: #ffe9b8; }
.music-btn {
  order: 3; flex: none; width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line);
  background: var(--card); color: var(--red); display: grid; place-items: center; cursor: pointer; margin-left: 6px;
}
.music-btn .slash { display: none; }
.music-btn.off { color: var(--ink-3); }
.music-btn.off .slash { display: inline; }
.music-btn:not(.off) svg { animation: bob 2.4s ease-in-out infinite; }
@keyframes bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-2px); } }
.menu-btn { display: none; margin-left: auto; background: none; border: 0; padding: 8px; border-radius: 10px; cursor: pointer; }

@media (max-width: 900px) {
  .menu-btn { display: block; margin-left: 4px; order: 4; }
  .music-btn { margin-left: auto; }
  .nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; background: var(--card); padding: 10px 16px 16px;
    border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 14px; }
}

main { max-width: 1120px; margin: 0 auto; padding: 24px 16px 80px; position: relative; z-index: 1; }

/* ------------------------------------------------------------------- héroe */
.hero {
  position: relative; overflow: hidden;
  border-radius: 24px; padding: 42px 32px 90px;
  background:
    linear-gradient(160deg, #8f1f1a 0%, #b8322a 45%, #cf4a33 100%);
  color: #fff6e6; box-shadow: var(--shadow-lg);
  isolation: isolate;
}
.hero::before {                          /* nubes auspiciosas */
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: url("../img/nubes-oro.svg") 0 0 / 300px; opacity: .16;
}
.hero h1 { margin: 0; font-size: clamp(30px, 5vw, 48px); line-height: 1.1; font-weight: 800; letter-spacing: -.5px; max-width: 640px; }
.hero h1 .brush { font-size: 1.15em; color: #ffd978; margin-right: 8px; }
.hero p { max-width: 560px; font-size: 18px; opacity: .92; margin: 14px 0 0; }
.hero .cta { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 22px; }
.hero .btn { background: #fff6e6; color: #8f1f1a; }
.hero .btn.ghost { background: transparent; color: #fff6e6; border-color: rgba(255, 246, 230, .6); }
.hero-mountains { position: absolute; left: 0; right: 0; bottom: -2px; height: 120px; z-index: -1; opacity: .5; }
.lanterns { position: absolute; right: 26px; top: -6px; display: flex; gap: 18px; pointer-events: none; }
.lantern { width: 62px; transform-origin: 50% 0; animation: sway 4.5s ease-in-out infinite; filter: drop-shadow(0 8px 16px rgba(0,0,0,.25)); }
.lantern:nth-child(2) { width: 78px; animation-delay: -1.4s; animation-duration: 5.2s; }
.lantern:nth-child(3) { width: 54px; animation-delay: -2.6s; animation-duration: 4s; }
.lantern .glow { animation: glow 3s ease-in-out infinite; }
@keyframes sway { 0%, 100% { transform: rotate(-4deg); } 50% { transform: rotate(4deg); } }
@keyframes glow { 0%, 100% { opacity: .55; } 50% { opacity: .95; } }
@media (max-width: 760px) {
  .hero { padding: 104px 20px 90px; }
  .lanterns { right: 16px; left: 16px; justify-content: space-between; }
  .lantern { width: 40px; } .lantern:nth-child(2) { width: 46px; } .lantern:nth-child(3) { width: 40px; }
}

/* ---------------------------------------------------------- pétalos (flor de ciruelo) */
.petals { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.petal {
  position: absolute; top: -30px; width: 14px; height: 12px;
  background: radial-gradient(circle at 30% 30%, #ffd9dc, #f19aa3 70%);
  border-radius: 12px 0 12px 0; opacity: .7;
  animation: fall linear infinite;
}
@keyframes fall {
  0% { transform: translate3d(0, -40px, 0) rotate(0); }
  100% { transform: translate3d(var(--dx, 60px), 110vh, 0) rotate(540deg); }
}
@media (prefers-reduced-motion: reduce) {
  .petals, .lantern { animation: none !important; }
  .petal { display: none; }
  * { transition: none !important; }
}

/* --------------------------------------------------------------- títulos */
.sec-h { display: flex; align-items: flex-end; gap: 14px; margin: 38px 0 16px; flex-wrap: wrap; }
.sec-h h2 { margin: 0; font-size: 26px; font-weight: 800; letter-spacing: -.3px; }
.sec-h .brush { font-size: 34px; color: var(--red); line-height: 1; }
.sec-h p { margin: 0; color: var(--ink-3); flex-basis: 100%; }
.page-h { display: flex; gap: 18px; align-items: center; margin: 4px 0 22px; }
.page-h .big-zh {
  font-family: var(--font-brush); font-size: 64px; line-height: 1; color: var(--red);
  width: min-content; word-break: break-all; text-align: center; line-height: 1.05; flex: none;
  padding: 10px 6px; border: 2px solid var(--red); border-radius: 8px; background: var(--card);
  box-shadow: 4px 4px 0 var(--gold-soft);
}
.page-h h1 { margin: 0; font-size: 32px; letter-spacing: -.4px; }
.page-h p { margin: 6px 0 0; color: var(--ink-2); max-width: 680px; }
@media (max-width: 640px) { .page-h .big-zh { font-size: 42px; } .page-h h1 { font-size: 25px; } }

/* ------------------------------------------------------------- tarjetas */
.grid { display: grid; gap: 16px; }
.grid.g4 { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.grid.g3 { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 20px; position: relative;
}
.mod {
  text-decoration: none; color: var(--ink); overflow: hidden; display: flex; flex-direction: column; gap: 6px;
  transition: transform .18s ease, box-shadow .18s ease;
}
.mod:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.mod .wm {
  position: absolute; right: -8px; bottom: -22px; font-family: var(--font-brush);
  font-size: 110px; line-height: 1; color: var(--red); opacity: .08; pointer-events: none;
}
.mod .ico {
  width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center;
  background: var(--red-soft); color: var(--red);
}
.mod h3 { margin: 8px 0 0; font-size: 20px; }
.mod h3 .zh { color: var(--red); margin-left: 6px; font-size: 18px; }
.mod p { margin: 0; color: var(--ink-2); font-size: 15px; }
.bar { height: 8px; background: var(--paper-2); border-radius: 99px; overflow: hidden; margin-top: 10px; }
.bar > i { display: block; height: 100%; background: linear-gradient(90deg, var(--red), var(--gold)); border-radius: 99px; transition: width .6s ease; }
.bar-l { font-size: 13px; color: var(--ink-3); margin-top: 4px; display: flex; justify-content: space-between; }

/* lista de ejercicios */
.ex {
  display: flex; gap: 14px; align-items: center; text-decoration: none; color: var(--ink);
  padding: 14px 16px; transition: transform .15s ease, border-color .15s ease;
}
.ex:hover { transform: translateY(-2px); border-color: var(--red); }
.ex .num {
  flex: none; width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
  font-family: var(--font-brush); font-size: 26px; color: var(--red);
  background: var(--red-soft); border: 1px solid color-mix(in srgb, var(--red) 25%, transparent);
}
.ex .t { flex: 1; min-width: 0; }
.ex .t b { display: block; font-size: 16px; line-height: 1.3; }
.ex .t span { font-size: 14px; color: var(--ink-3); }
.ex .score {
  flex: none; font-weight: 800; font-size: 14px; padding: 4px 10px; border-radius: 99px;
  background: var(--paper-2); color: var(--ink-3);
}
.ex .score.good { background: var(--jade-soft); color: var(--jade); }
.ex .score.mid { background: var(--amber-soft); color: var(--amber); }
.ex .score.low { background: var(--red-soft); color: var(--red); }

.group-h { margin: 28px 0 12px; font-size: 14px; font-weight: 800; text-transform: uppercase; letter-spacing: 1.2px; color: var(--ink-3); display: flex; gap: 10px; align-items: center; }
.group-h::after { content: ""; flex: 1; height: 1px; background: var(--line); }

/* temas */
.temas { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 12px; }
.tema {
  text-decoration: none; color: var(--ink); padding: 14px; display: flex; gap: 12px; align-items: center;
  background: var(--card); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow);
  transition: transform .15s ease;
}
.tema:hover { transform: translateY(-2px); }
.tema .n {
  flex: none; width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center;
  background: var(--red); color: #fff4e0; font-family: var(--font-brush); font-size: 20px;
}
.tema b { display: block; font-size: 14.5px; line-height: 1.25; }
.tema .zh { font-size: 13px; color: var(--ink-3); }

/* ------------------------------------------------------------- botones */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; border-radius: 999px; border: 2px solid transparent;
  background: var(--red); color: #fff; font-weight: 800; font-size: 16px;
  cursor: pointer; text-decoration: none; transition: transform .1s ease, filter .15s ease, background .15s ease;
  min-height: 46px;
}
.btn:hover { filter: brightness(1.06); }
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.ghost { background: transparent; color: var(--red); border-color: color-mix(in srgb, var(--red) 45%, transparent); }
.btn.soft { background: var(--paper-2); color: var(--ink); }
.btn.jade { background: var(--jade); }
.btn.sm { padding: 6px 14px; min-height: 36px; font-size: 14px; }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.icon-btn {
  width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line); background: var(--card);
  display: inline-grid; place-items: center; cursor: pointer; color: var(--ink-2); flex: none;
}
.icon-btn:hover { color: var(--red); border-color: var(--red); }

.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
  border: 1px solid var(--line); background: var(--card); color: var(--ink-2);
  padding: 7px 14px; border-radius: 999px; font-weight: 700; font-size: 14px; cursor: pointer;
  display: inline-flex; gap: 6px; align-items: center;
}
.chip .zh { font-size: 14px; }
.chip.on { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.chip:hover:not(.on) { border-color: var(--red); color: var(--red); }

.tabs { display: flex; gap: 8px; margin: 0 0 18px; flex-wrap: wrap; }
.tab {
  padding: 12px 18px; border-radius: 14px; border: 2px solid var(--line); background: var(--card);
  font-weight: 800; cursor: pointer; text-align: left; display: flex; gap: 10px; align-items: center;
}
.tab small { display: block; font-weight: 600; color: var(--ink-3); font-size: 13px; }
.tab.on { border-color: var(--red); background: var(--red-soft); }

/* ------------------------------------------------------------ reproductor */
.player {
  display: flex; flex-direction: column; gap: 12px;
  background: linear-gradient(180deg, var(--card), var(--paper-2));
  border: 1px solid var(--line); border-radius: 18px; padding: 16px;
}
.player-main { display: flex; align-items: center; gap: 14px; }
.play {
  width: 64px; height: 64px; border-radius: 50%; border: 0; cursor: pointer; flex: none;
  background: var(--red); color: #fff; display: grid; place-items: center;
  box-shadow: 0 6px 18px color-mix(in srgb, var(--red) 40%, transparent);
  transition: transform .12s ease;
}
.play:active { transform: scale(.94); }
.play.playing { animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--red) 45%, transparent); } 50% { box-shadow: 0 0 0 12px transparent; } }
.track { flex: 1; min-width: 0; }
.track .prog { height: 8px; border-radius: 99px; background: var(--line); overflow: hidden; cursor: pointer; }
.track .prog i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--red), var(--gold)); }
.track .meta { display: flex; justify-content: space-between; font-size: 13px; color: var(--ink-3); margin-top: 6px; gap: 8px; }
.speeds { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.speeds .lbl { font-size: 13px; color: var(--ink-3); font-weight: 700; margin-right: 4px; }
.src-tag { font-size: 12px; padding: 2px 8px; border-radius: 99px; background: var(--paper-2); color: var(--ink-3); }
.src-tag.rec { background: var(--jade-soft); color: var(--jade); }
.eq { display: inline-flex; gap: 2px; align-items: flex-end; height: 14px; }
.eq i { width: 3px; background: currentColor; border-radius: 2px; animation: eq 1s ease-in-out infinite; }
.eq i:nth-child(2) { animation-delay: -.3s; } .eq i:nth-child(3) { animation-delay: -.6s; }
@keyframes eq { 0%, 100% { height: 4px; } 50% { height: 14px; } }

/* ------------------------------------------------------------- ejercicios */
.ex-wrap { max-width: 860px; margin: 0 auto; }
.ex-head { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.back { text-decoration: none; color: var(--ink-3); font-weight: 700; display: inline-flex; align-items: center; gap: 4px; }
.back:hover { color: var(--red); }
.ex-head h1 { font-size: 24px; margin: 0; flex-basis: 100%; letter-spacing: -.3px; }
.ex-head h1 .zh { color: var(--red); font-size: 20px; margin-left: 8px; }
.ex-head h1 .h1-sub { color: var(--red); font-size: 17px; margin-left: 8px; font-weight: 700; }
.dots { display: flex; gap: 5px; flex-wrap: wrap; }
.dots i { width: 22px; height: 6px; border-radius: 99px; background: var(--line); }
.dots i.cur { background: var(--ink-3); }
.dots i.ok { background: var(--jade); } .dots i.mid { background: var(--amber); } .dots i.ko { background: var(--red); }

.q-card { padding: 24px; }
.prompt { text-align: center; margin: 6px 0 18px; }
.prompt .lbl { font-size: 13px; font-weight: 800; letter-spacing: 1.2px; text-transform: uppercase; color: var(--ink-3); }
.prompt .big { font-size: clamp(22px, 3.6vw, 30px); line-height: 1.4; margin-top: 8px; }
.prompt .big.zh { font-size: clamp(28px, 5vw, 40px); }

.field { position: relative; }
.inp {
  width: 100%; padding: 14px 16px; font-size: 20px; border-radius: 14px;
  border: 2px solid var(--line); background: var(--paper); outline: none; transition: border-color .15s ease;
}
.inp:focus { border-color: var(--red); background: var(--card); }
.inp.py { font-family: var(--font-py); }
.inp.zh { font-family: var(--font-zh); font-size: 24px; }
textarea.inp { min-height: 84px; resize: vertical; font-size: 18px; }
.tonebar { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; align-items: center; }
.tonebar button {
  min-width: 40px; height: 38px; border-radius: 10px; border: 1px solid var(--line); background: var(--card);
  font-family: var(--font-py); font-size: 18px; cursor: pointer; padding: 0 8px;
}
.tonebar button:hover { border-color: var(--red); color: var(--red); }
.tonebar .hint { font-size: 13px; color: var(--ink-3); margin-left: 6px; }

/* resultado */
.fb {
  margin-top: 16px; padding: 18px 18px 18px 20px; border-radius: 16px; border: 2px solid; position: relative;
  animation: rise .25s ease;
}
.fb.ok { background: var(--jade-soft); border-color: color-mix(in srgb, var(--jade) 45%, transparent); }
.fb.mid { background: var(--amber-soft); border-color: color-mix(in srgb, var(--amber) 45%, transparent); }
.fb.ko { background: var(--red-soft); border-color: color-mix(in srgb, var(--red) 40%, transparent); }
.fb h4 { margin: 0 0 8px; font-size: 17px; padding-right: 80px; }
.fb .row { margin: 6px 0; }
.fb .row .k { font-size: 12px; text-transform: uppercase; letter-spacing: 1px; font-weight: 800; color: var(--ink-3); display: block; }
.fb .row .v { font-size: 19px; }
.fb .row .v.zh { font-size: 24px; }
.syl { display: inline-block; padding: 0 2px; border-radius: 5px; }
.syl.ok { color: var(--jade); }
.syl.tone { background: color-mix(in srgb, var(--amber) 22%, transparent); color: var(--amber); font-weight: 800; }
.syl.miss { background: color-mix(in srgb, var(--red) 18%, transparent); color: var(--red); font-weight: 800; }
.syl.extra { text-decoration: line-through; color: var(--red); }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.shake { animation: shake .35s ease; }
@keyframes shake { 20%, 60% { transform: translateX(-6px); } 40%, 80% { transform: translateX(6px); } }

/* sello de corrección */
.stamp {
  position: absolute; right: 14px; top: 10px; width: 70px; height: 70px; border-radius: 12px;
  border: 3px solid currentColor; display: grid; place-items: center;
  font-family: var(--font-brush); font-size: 34px; line-height: 1;
  transform: rotate(-10deg); animation: stamp .45s cubic-bezier(.2, 1.6, .5, 1);
  background: color-mix(in srgb, currentColor 8%, transparent);
}
.fb.ok .stamp { color: var(--jade); }
.fb.mid .stamp { color: var(--amber); font-size: 19px; width: 84px; letter-spacing: -1px; }
.fb.ko .stamp { color: var(--red); }
@keyframes stamp { from { transform: scale(2.4) rotate(-30deg); opacity: 0; } to { transform: scale(1) rotate(-10deg); opacity: 1; } }

/* preguntas */
.qs { display: flex; flex-direction: column; gap: 14px; margin-top: 18px; }
.qq { padding: 16px 18px; }
.qq .qh { display: flex; gap: 10px; align-items: baseline; }
.qq .qn { flex: none; width: 28px; height: 28px; border-radius: 50%; background: var(--ink); color: var(--paper); display: grid; place-items: center; font-weight: 800; font-size: 14px; }
.qq .qt { font-weight: 700; font-size: 17px; }
.qq .lang { font-size: 12px; font-weight: 800; letter-spacing: .8px; text-transform: uppercase; padding: 2px 8px; border-radius: 99px; margin-left: 6px; white-space: nowrap; }
.lang.py { background: var(--gold-soft); color: var(--amber); }
.lang.es { background: var(--jade-soft); color: var(--jade); }
.qq .inp { font-size: 17px; padding: 10px 14px; margin-top: 10px; }
.qq .res { margin-top: 10px; font-size: 15px; padding: 10px 12px; border-radius: 10px; animation: rise .25s ease; }
.qq .res.ok { background: var(--jade-soft); } .qq .res.mid { background: var(--amber-soft); } .qq .res.ko { background: var(--red-soft); }
.qq .res b { margin-right: 6px; }
.link-btn { background: none; border: 0; color: var(--ink-3); text-decoration: underline; cursor: pointer; font-size: 13px; padding: 4px 0; }
.link-btn:hover { color: var(--red); }

/* ---------------------------------------------------------- texto clicable */
.reading { padding: 26px 28px; background:
  linear-gradient(var(--card), var(--card)) padding-box,
  linear-gradient(135deg, var(--red), var(--gold)) border-box;
  border: 2px solid transparent; }
.reading h2 { margin: 0 0 4px; font-size: 22px; }
.reading .ttl-zh { margin-bottom: 14px; }
.text-body p { margin: 0 0 14px; line-height: 2.3; }
.text-body.lv1 p { font-size: 20px; font-family: var(--font-py); line-height: 2.1; }
.text-body.lv2 p { font-size: 26px; font-family: var(--font-zh); letter-spacing: 1px; }
.w {
  cursor: pointer; border-radius: 6px; padding: 1px 1px; transition: background .12s ease;
  border-bottom: 1.5px dotted color-mix(in srgb, var(--ink-3) 55%, transparent);
}
.w:hover, .w.sel { background: var(--gold-soft); border-bottom-color: var(--red); }
.w.plain { border-bottom: 0; cursor: default; }
.w.plain:hover { background: none; }
ruby { ruby-position: over; }
rt { font-size: 55%; color: var(--ink-3); font-family: var(--font-py); letter-spacing: 0; }
.lv1 rt { font-family: var(--font-zh); font-size: 60%; }

.pop {
  position: absolute; z-index: 60; min-width: 190px; max-width: 280px;
  background: var(--card); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow-lg);
  padding: 14px 16px; animation: rise .15s ease;
}
.pop .pz { font-family: var(--font-zh); font-size: 38px; line-height: 1.1; }
.pop .pp { font-family: var(--font-py); font-size: 18px; color: var(--red); font-weight: 700; margin-top: 2px; }
.pop .pe { font-size: 15px; color: var(--ink-2); margin-top: 4px; }
.pop .pt { font-size: 12px; color: var(--ink-3); margin-top: 6px; }
.pop .icon-btn { position: absolute; right: 10px; top: 10px; width: 34px; height: 34px; }
@media (max-width: 640px) {
  .pop { position: fixed; left: 12px !important; right: 12px; bottom: 12px; top: auto !important; max-width: none; }
}

/* transcripción */
.tr-line { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; padding: 12px 0; border-bottom: 1px dashed var(--line); }
.tr-line:last-child { border-bottom: 0; }
.tr-line.now { background: var(--gold-soft); border-radius: 10px; }
.tr-sp { font-weight: 800; font-size: 14px; color: var(--red); display: flex; gap: 6px; align-items: center; }
.tr-sp .icon-btn { width: 32px; height: 32px; }
.tr-zh { font-family: var(--font-zh); font-size: 22px; line-height: 1.7; }
.tr-py { font-family: var(--font-py); color: var(--ink-2); font-size: 16px; }
.tr-es { color: var(--ink-3); font-size: 15px; font-style: italic; }
.tr-body { min-width: 0; }
.persons { display: flex; gap: 8px; flex-wrap: wrap; margin: 10px 0 14px; }
.person { display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px 4px 4px; border-radius: 99px; background: var(--paper-2); font-weight: 700; font-size: 14px; }
.person .av { width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; color: #fff; font-family: var(--font-zh); font-size: 14px; }
.person .av.f { background: #c2185b; } .person .av.m { background: #1565c0; }

/* fichas para ordenar */
.tiles-answer {
  min-height: 70px; border: 2px dashed var(--line); border-radius: 14px; padding: 10px;
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center; background: var(--paper);
}
.tiles-bank { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; justify-content: center; }
.tile {
  font-family: var(--font-zh); font-size: 24px; padding: 6px 14px; border-radius: 12px; cursor: pointer;
  background: var(--card); border: 1px solid var(--line); border-bottom-width: 3px;
  transition: transform .1s ease;
}
.tile:hover { transform: translateY(-2px); border-color: var(--red); }
.tile.used { visibility: hidden; }

/* resumen final */
.result { text-align: center; padding: 34px 20px; overflow: hidden; }
.result .big-stamp {
  display: inline-grid; place-items: center; width: 130px; height: 130px; border-radius: 22px;
  border: 5px solid var(--red); color: var(--red); font-family: var(--font-brush); font-size: 70px;
  transform: rotate(-8deg); animation: stamp .6s cubic-bezier(.2, 1.6, .5, 1); margin-bottom: 14px;
  background: var(--red-soft);
}
.result .pct { font-size: 46px; font-weight: 900; letter-spacing: -1px; }
.result .sub { color: var(--ink-2); }
.review { text-align: left; margin-top: 22px; display: flex; flex-direction: column; gap: 8px; }
.review .it { display: flex; gap: 12px; align-items: flex-start; padding: 10px 12px; border-radius: 12px; background: var(--paper-2); }
.review .it .m { flex: none; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; font-weight: 900; color: #fff; font-size: 14px; }
.review .it .m.ok { background: var(--jade); } .review .it .m.mid { background: var(--amber); } .review .it .m.ko { background: var(--red); }
.review .it .zh { font-size: 19px; }

.burst { position: fixed; left: 50%; top: 40%; pointer-events: none; z-index: 80; }
.burst i {
  position: absolute; width: 10px; height: 10px; border-radius: 50%;
  animation: burst 1.2s cubic-bezier(.1, .8, .3, 1) forwards;
}
@keyframes burst { from { transform: translate(0, 0) scale(1); opacity: 1; } to { transform: translate(var(--x), var(--y)) scale(.3); opacity: 0; } }

/* ------------------------------------------------------------------ varios */
.note {
  padding: 14px 16px; border-radius: 14px; background: var(--gold-soft); border: 1px solid color-mix(in srgb, var(--gold) 40%, transparent);
  font-size: 15px; color: var(--ink-2);
}
.note b { color: var(--ink); }
.kbd { font-family: ui-monospace, monospace; font-size: 12px; padding: 1px 6px; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 6px; background: var(--card); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 760px) { .split { grid-template-columns: 1fr; } }
.toggle { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: 14px; font-weight: 700; color: var(--ink-2); user-select: none; }
.toggle input { width: 18px; height: 18px; accent-color: var(--red); }
.settings .card { display: flex; flex-direction: column; gap: 12px; }
.settings h3 { margin: 0; }
.opt { display: flex; gap: 10px; align-items: flex-start; padding: 10px 12px; border-radius: 12px; border: 1px solid var(--line); cursor: pointer; }
.opt input { margin-top: 5px; accent-color: var(--red); }
.opt small { display: block; color: var(--ink-3); }
.vocab-t { width: 100%; border-collapse: collapse; }
.vocab-t td { padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.vocab-t td.zh { font-size: 26px; width: 1%; white-space: nowrap; }
.vocab-t td.py { color: var(--red); font-weight: 700; white-space: nowrap; }
.vocab-t tr:hover td { background: var(--paper-2); }
.search { max-width: 360px; font-size: 16px; padding: 10px 14px; }
footer.foot { text-align: center; color: var(--ink-3); font-size: 13px; padding: 30px 16px 40px; position: relative; z-index: 1; }
footer.foot .brush { font-size: 22px; color: var(--red); }
.fade-in { animation: rise .3s ease; }

/* teclado de la app (pinyin → hanzi) */
.ime { display: flex; flex-direction: column; gap: 10px; }
.ime-out {
  min-height: 62px; padding: 10px 14px; border-radius: 14px; border: 2px dashed var(--line);
  background: var(--paper); font-size: 28px; display: flex; align-items: center; flex-wrap: wrap; letter-spacing: 1px;
}
.ime-caret { display: inline-block; width: 2px; height: 30px; background: var(--red); margin-left: 3px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.ime-cands { display: flex; flex-wrap: wrap; gap: 6px; min-height: 48px; align-items: center; }
.ime-c {
  display: inline-flex; align-items: baseline; gap: 6px; padding: 6px 12px; border-radius: 12px; cursor: pointer;
  border: 1px solid var(--line); border-bottom-width: 3px; background: var(--card);
}
.ime-c:hover, .ime-c:first-of-type { border-color: var(--red); }
.ime-c small { color: var(--ink-3); font-size: 12px; font-weight: 800; }
.ime-c .zh { font-size: 24px; }
.ime-c em { font-style: normal; color: var(--ink-3); font-size: 13px; font-family: var(--font-py); }
/* página de ayuda del teclado */
.kb-h { display: flex; align-items: center; gap: 12px; margin-bottom: 6px; }
.kb-h .brush { font-size: 30px; color: var(--red); }
.kb-h h3 { margin: 0; font-size: 19px; }
.kb-sec p { margin: 6px 0; }
.steps { margin: 6px 0; padding-left: 22px; }
.steps li { margin: 6px 0; }
.dev { border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; margin: 8px 0; background: var(--paper); }
.dev summary { cursor: pointer; font-weight: 800; }
.dev[open] summary { margin-bottom: 4px; color: var(--red); }
@media (max-width: 640px) {
  .vocab-t { table-layout: fixed; }
  .vocab-t td { padding: 8px 4px; overflow-wrap: anywhere; }
  .vocab-t td.zh { width: 27%; font-size: 21px; white-space: normal; }
  .vocab-t td.py { width: 27%; white-space: normal; font-size: 15px; }
  .vocab-t td:last-child { width: 26px; }
}

footer.foot .home-link { display: inline-block; margin-bottom: 10px; font-weight: 800; text-decoration: none; padding: 8px 16px; border-radius: 999px; border: 1px solid var(--line); background: var(--card); color: var(--red); }
footer.foot .home-link:hover { border-color: var(--red); }