/* Soy-Nipo — diseño minimalista con alma japonesa */
:root {
  --bg: #faf7f2; --card: #ffffff; --ink: #26221d; --muted: #8a8377;
  --accent: #c73e3a; --accent2: #3a5a8c; --line: #e7e1d6; --ghost: #d0cabd;
  --ok: #3d8b57; --okbg: #e3f2e8; --bad: #c0392b; --badbg: #fdeaea;
  --shadow: 0 1px 3px rgba(40, 30, 20, .08), 0 4px 16px rgba(40, 30, 20, .05);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171b; --card: #1e2126; --ink: #e9e5dd; --muted: #9a97a0;
    --accent: #e05d55; --accent2: #7d9cc9; --line: #2c3038; --ghost: #454b55;
    --ok: #5cb87e; --okbg: #1f3327; --bad: #e07a70; --badbg: #3a2325;
    --shadow: 0 1px 3px rgba(0, 0, 0, .4);
  }
}
:root[data-theme="light"] {
  --bg: #faf7f2; --card: #ffffff; --ink: #26221d; --muted: #8a8377;
  --accent: #c73e3a; --accent2: #3a5a8c; --line: #e7e1d6; --ghost: #d0cabd;
  --ok: #3d8b57; --okbg: #e3f2e8; --bad: #c0392b; --badbg: #fdeaea;
  --shadow: 0 1px 3px rgba(40, 30, 20, .08), 0 4px 16px rgba(40, 30, 20, .05);
}
:root[data-theme="dark"] {
  --bg: #15171b; --card: #1e2126; --ink: #e9e5dd; --muted: #9a97a0;
  --accent: #e05d55; --accent2: #7d9cc9; --line: #2c3038; --ghost: #454b55;
  --ok: #5cb87e; --okbg: #1f3327; --bad: #e07a70; --badbg: #3a2325;
  --shadow: 0 1px 3px rgba(0, 0, 0, .4);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg); color: var(--ink);
  font-family: "Segoe UI", system-ui, -apple-system, "Hiragino Sans", "Yu Gothic UI", "Noto Sans JP", sans-serif;
  line-height: 1.55; min-height: 100vh;
}
.jp, ruby, .kanachar, .qbig { font-family: "Yu Gothic UI", "Hiragino Sans", "Noto Sans JP", "Meiryo", sans-serif; }
a { color: var(--accent2); }

#app { max-width: 640px; margin: 0 auto; padding: 12px 14px 84px; }

/* header */
.apphead { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 8px 0 14px; }
.brand { font-size: 1.15rem; display: flex; align-items: center; gap: 6px; min-width: 0; }
.brand b { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.stats { display: flex; gap: 10px; font-weight: 600; color: var(--muted); white-space: nowrap; }
.back { background: var(--card); border: 1px solid var(--line); border-radius: 12px; width: 38px; height: 38px; font-size: 1.1rem; color: var(--ink); cursor: pointer; flex-shrink: 0; }

/* cards */
.card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 16px; margin-bottom: 14px; box-shadow: var(--shadow); }
.card h3 { margin-bottom: 10px; font-size: 1.02rem; }
.center { text-align: center; }
.rowline { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin: 4px 0; }
.hint { color: var(--muted); font-size: .86rem; }
.notice { background: var(--bg); border: 1px dashed var(--line); border-radius: 12px; padding: 10px 12px; font-size: .9rem; margin: 10px 0; }
.foot { text-align: center; color: var(--muted); font-size: .85rem; padding: 18px 0 8px; }
.bigemoji { font-size: 3rem; margin: 8px 0; }
.big { font-size: 1.6rem; }

/* CTA */
.cta { display: flex; align-items: center; gap: 14px; cursor: pointer; border-left: 5px solid var(--accent); }
.cta-emoji { font-size: 2.2rem; }
.cta-kicker { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; }
.cta-title { font-weight: 700; font-size: 1.1rem; }
.cta-arrow { margin-left: auto; color: var(--accent); font-size: 1.2rem; }
.duecard { border-left: 5px solid var(--accent2); }

/* quick actions */
.quickrow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 14px; }
.quick { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 12px 6px; font-size: 1.4rem; cursor: pointer; color: var(--ink); box-shadow: var(--shadow); display: flex; flex-direction: column; align-items: center; gap: 2px; }
.quick span { font-size: .78rem; color: var(--muted); }

/* niveles */
.level { margin-bottom: 20px; }
.level-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.level-emoji { font-size: 1.8rem; }
.level-head h2 { font-size: 1.05rem; }
.level-meta { color: var(--muted); font-size: .82rem; }
.whybox { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 10px 14px; margin-bottom: 10px; font-size: .92rem; }
.whybox summary { cursor: pointer; font-weight: 600; color: var(--accent2); }
.whybox p { margin-top: 8px; color: var(--muted); }
.chgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); gap: 8px; }
.chip { border: 1px solid var(--line); background: var(--card); border-radius: 14px; padding: 10px 6px; cursor: pointer; color: var(--ink); display: flex; flex-direction: column; align-items: center; gap: 4px; box-shadow: var(--shadow); }
.chip-emoji { font-size: 1.5rem; }
.chip-title { font-size: .78rem; text-align: center; line-height: 1.2; }
.chip.locked { opacity: .55; }
.chip.done { border-color: var(--ok); }
.chip.open { border-color: var(--accent); }
.donebanner { background: var(--okbg); color: var(--ok); border-radius: 12px; padding: 10px 14px; margin-bottom: 12px; font-weight: 600; }

/* gates */
.gate { margin: 10px 0; }
.gate.met { opacity: .75; }
.pbar { background: var(--bg); border: 1px solid var(--line); border-radius: 99px; height: 10px; overflow: hidden; margin: 4px 0; }
.pfill { background: linear-gradient(90deg, var(--accent), var(--accent2)); height: 100%; border-radius: 99px; transition: width .4s; }

/* botones */
.btnrow { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.btnrow.center { justify-content: center; }
.btn { background: var(--card); color: var(--ink); border: 1px solid var(--line); border-radius: 12px; padding: 10px 16px; font-size: .95rem; cursor: pointer; box-shadow: var(--shadow); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.btn.danger { color: var(--bad); border-color: var(--bad); }
.btn.sel { border-color: var(--accent); color: var(--accent); font-weight: 600; }
.btn.slim, .input.slim { padding: 6px 10px; font-size: .85rem; }
.btn:active { transform: scale(.97); }
.btn.recording { background: var(--bad); border-color: var(--bad); color: #fff; animation: pulse 1s infinite; }
@keyframes pulse { 50% { opacity: .6; } }
.input { width: 100%; background: var(--bg); color: var(--ink); border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; font-size: .95rem; margin: 6px 0; font-family: inherit; }
textarea.input { resize: vertical; }
label.slider { flex-wrap: wrap; }
label.slider input { width: 100%; accent-color: var(--accent); }
input[type="checkbox"] { width: 20px; height: 20px; accent-color: var(--accent); }

/* kana */
.ggroup { margin-bottom: 12px; }
.gname { font-size: .8rem; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 6px; }
.kanagrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(62px, 1fr)); gap: 8px; }
.kanacell { background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 8px 4px; cursor: pointer; color: var(--ink); display: flex; flex-direction: column; align-items: center; }
.kanachar { font-size: 1.7rem; }
.kanachar.sm { font-size: 1.3rem; }
.kanarom { color: var(--muted); font-size: .75rem; min-height: 1em; }

/* gramática / vocab */
.grambox { border-left: 3px solid var(--accent2); padding: 6px 12px; margin: 10px 0; }
.gramname { font-weight: 700; }
.jline { background: none; border: none; color: var(--ink); font-size: .95rem; cursor: pointer; text-align: left; padding: 4px 0; }
.jline .jp { font-size: 1.1rem; font-weight: 600; }
.jline.big .jp { font-size: 1.25rem; }
.vlist { display: flex; flex-direction: column; gap: 6px; }
.vrow { display: flex; align-items: center; gap: 10px; background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 8px 12px; cursor: pointer; color: var(--ink); text-align: left; }
.vemoji { font-size: 1.4rem; }
.vjp { font-weight: 700; font-size: 1.05rem; display: flex; flex-direction: column; }
.vjp small { color: var(--muted); font-weight: 400; }
.ves { margin-left: auto; color: var(--muted); font-size: .9rem; text-align: right; }
.pitchtag { font-size: .7rem; background: var(--bg); color: var(--accent2); border: 1px solid var(--line); padding: 1px 6px; border-radius: 99px; }

/* kanji */
.kjgrid { display: flex; flex-direction: column; gap: 10px; }
.kjcard { display: flex; gap: 12px; align-items: center; background: var(--bg); border: 1px solid var(--line); border-radius: 14px; padding: 10px; }
.kjchar { font-size: 2.6rem; background: var(--card); border: 1px solid var(--line); border-radius: 12px; width: 68px; height: 68px; cursor: pointer; color: var(--ink); flex-shrink: 0; }
.kjes { font-weight: 700; }

/* quiz */
.quizhead .big { font-size: 1.5rem; color: var(--accent); }
.qbig { font-size: 4.2rem; text-align: center; margin: 12px 0 4px; line-height: 1.2; }
.qbig.qrom { font-size: 2.2rem; color: var(--accent2); }
.qbig.sm2 { font-size: 1.9rem; }
.optgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 14px; }
.opt { background: var(--bg); border: 1.5px solid var(--line); border-radius: 14px; padding: 14px 8px; font-size: 1.15rem; cursor: pointer; color: var(--ink); }
.opt.jp { font-size: 1.25rem; }
.opt.right { background: var(--okbg); border-color: var(--ok); color: var(--ok); font-weight: 700; }
.opt.wrong { background: var(--badbg); border-color: var(--bad); color: var(--bad); }
.opt:disabled { cursor: default; }

/* dibujo */
.charpick { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 6px; margin-bottom: 8px; }
.pickc, .pickp { background: var(--bg); border: 1px solid var(--line); border-radius: 10px; min-width: 44px; padding: 6px 10px; font-size: 1.15rem; cursor: pointer; color: var(--ink); flex-shrink: 0; }
.pickp { font-size: .95rem; }
.pickc.sel, .pickp.sel { border-color: var(--accent); color: var(--accent); font-weight: 700; }
.modes { margin-bottom: 8px; }
.canvaswrap { display: flex; justify-content: center; }
#board { width: min(84vw, 340px); height: min(84vw, 340px); background: var(--card); border: 2px solid var(--line); border-radius: 18px; touch-action: none; }

/* repaso */
.cardback { margin: 10px 0; }
.reading { font-size: 1.6rem; font-weight: 700; }
.cardimg { max-width: min(70vw, 260px); max-height: 240px; border-radius: 14px; margin: 8px auto; display: block; }
.grade { flex: 1; min-width: 72px; }
.grade small { color: var(--muted); font-weight: 400; }
.g1 { border-color: var(--bad); } .g4 { border-color: var(--ok); }

/* dictado / voz */
.bigplay { font-size: 2rem; background: var(--accent); color: #fff; border: none; border-radius: 50%; width: 84px; height: 84px; cursor: pointer; margin: 10px auto; display: block; box-shadow: var(--shadow); }
.phrase { font-size: 1.5rem; font-weight: 600; margin: 12px 0; line-height: 1.7; }
.phrase.built { min-height: 2.2em; border-bottom: 2px dashed var(--line); }
.hole { color: var(--accent); font-weight: 800; }
.pitchcv { width: 100%; height: 130px; background: var(--bg); border: 1px solid var(--line); border-radius: 14px; margin-top: 12px; }
.dok { color: var(--ok); } .dbad { color: var(--bad); text-decoration: underline wavy; }

/* historias */
.sline { display: flex; gap: 12px; margin: 14px 0; align-items: flex-start; }
.simg { font-size: 2rem; flex-shrink: 0; width: 46px; text-align: center; }
.linejp { font-size: 1.3rem; line-height: 2.1; }
ruby rt { font-size: .55em; color: var(--accent2); }
.strans summary { color: var(--muted); font-size: .82rem; cursor: pointer; }
.strans p { color: var(--muted); font-size: .92rem; }

/* packs */
.modegrid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.modecard { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 14px 10px; cursor: pointer; color: var(--ink); display: flex; flex-direction: column; gap: 4px; align-items: flex-start; text-align: left; box-shadow: var(--shadow); }
.modecard.done { border-color: var(--ok); }
.modecard small { color: var(--muted); font-size: .76rem; }
.modeicon { font-size: 1.5rem; }
.packlist { display: flex; flex-direction: column; gap: 8px; }
.packrow { display: flex; gap: 8px; align-items: stretch; }
.packmain { flex: 1; display: flex; gap: 12px; align-items: center; background: var(--bg); border: 1px solid var(--line); border-radius: 14px; padding: 10px 12px; cursor: pointer; color: var(--ink); text-align: left; min-width: 0; }
.packemoji { font-size: 1.7rem; }
.packinfo { display: flex; flex-direction: column; min-width: 0; }
.packinfo b { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.packinfo small { color: var(--muted); }
.del { background: none; border: 1px solid var(--line); border-radius: 12px; cursor: pointer; padding: 0 12px; }

/* mis tarjetas */
.mygrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
.mycard { background: var(--bg); border: 1px solid var(--line); border-radius: 14px; padding: 10px; text-align: center; }
.mycard img { width: 100%; height: 110px; object-fit: cover; border-radius: 10px; }
.myemoji { font-size: 3rem; }

/* nav inferior */
#nav { position: fixed; bottom: 0; left: 0; right: 0; background: var(--card); border-top: 1px solid var(--line); display: flex; justify-content: space-around; padding: 6px 4px calc(6px + env(safe-area-inset-bottom)); max-width: 640px; margin: 0 auto; border-radius: 18px 18px 0 0; box-shadow: 0 -4px 20px rgba(0,0,0,.08); }
#nav button { background: none; border: none; color: var(--muted); cursor: pointer; display: flex; flex-direction: column; align-items: center; font-size: 1.25rem; padding: 2px 10px; border-radius: 12px; }
#nav button small { font-size: .68rem; }
#nav button.active { color: var(--accent); }

/* toast + confetti */
#toast { position: fixed; bottom: 92px; left: 50%; transform: translateX(-50%) translateY(20px); background: var(--ink); color: var(--bg); padding: 10px 18px; border-radius: 99px; font-size: .92rem; opacity: 0; pointer-events: none; transition: all .25s; z-index: 50; max-width: 88vw; text-align: center; }
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.confetti { position: fixed; inset: 0; pointer-events: none; z-index: 40; overflow: hidden; }
.confetti span { position: absolute; top: -30px; animation: fall 2.6s ease-in forwards; }
@keyframes fall { to { transform: translateY(105vh) rotate(340deg); opacity: .2; } }