:root{
  --washi:#F4EFE6; --washi-2:#EDE6D8;
  --sumi:#23201C; --sumi-soft:#5A544B;
  --shu:#C8442E; --shu-deep:#A6321F;
  --ai:#2E4A6B; --matsuba:#5B7A3E;
  --line:#D8CFBE; --shadow:rgba(35,32,28,.12);
}
@media (prefers-color-scheme: dark){
  :root{
    --washi:#1B1A18; --washi-2:#232220;
    --sumi:#EFE9DC; --sumi-soft:#B3AB9C;
    --line:#38352F; --shadow:rgba(0,0,0,.4);
  }
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;overflow-x:hidden}
body{
  background:var(--washi);color:var(--sumi);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  min-height:100dvh;display:flex;flex-direction:column;align-items:center;
  padding:24px 16px 48px;-webkit-font-smoothing:antialiased;
}
.mincho{font-family:"Hiragino Mincho ProN","Yu Mincho","YuMincho","MS Mincho",serif}
.wrap{width:100%;max-width:560px}

/* ---- NAVIGATION ---- */
.nav{width:100%;max-width:560px;margin:0 auto 20px;display:flex;gap:6px;justify-content:center;flex-wrap:wrap}
.nav a{padding:8px 14px;border-radius:10px;font-size:13px;font-weight:700;color:var(--sumi-soft);text-decoration:none;border:1.5px solid transparent;transition:all .15s ease}
.nav a:hover{color:var(--shu)}
.nav a.active{color:var(--sumi);background:var(--washi-2);border-color:var(--line)}

header{text-align:center;margin-bottom:20px}
.kicker{font-size:12px;letter-spacing:.28em;text-transform:uppercase;color:var(--shu);font-weight:700;margin-bottom:6px}
h1{margin:0;font-size:26px;font-weight:800;letter-spacing:-.01em;display:flex;align-items:center;justify-content:center;gap:12px}
h1 .jp{font-weight:500;color:var(--sumi-soft);font-size:22px}
.sub{color:var(--sumi-soft);font-size:13px;margin-top:6px}

/* ---- ACCUEIL ---- */
.hero{text-align:center;margin:8px 0 28px}
.hero p{color:var(--sumi-soft);font-size:14px;max-width:440px;margin:10px auto 0;line-height:1.5}
.sections{display:grid;grid-template-columns:1fr;gap:14px;width:100%;max-width:560px}
@media (min-width:560px){ .sections{grid-template-columns:repeat(3,1fr)} }
.section-card{display:block;text-decoration:none;color:inherit;background:var(--washi-2);border:1px solid var(--line);border-radius:18px;padding:26px 18px;text-align:center;transition:transform .12s ease, box-shadow .12s ease, border-color .12s ease}
.section-card:hover{transform:translateY(-2px);box-shadow:0 10px 24px var(--shadow);border-color:var(--shu)}
.section-card .glyph-sample{font-size:42px;margin-bottom:10px;line-height:1}
.section-card h3{margin:0 0 4px;font-size:16px;font-weight:800}
.section-card p{margin:0;font-size:12px;color:var(--sumi-soft);line-height:1.4}

.switch{display:flex;gap:8px;justify-content:center;margin:0 auto 12px;max-width:320px}
.switch button{flex:1;border:1.5px solid var(--line);background:transparent;color:var(--sumi-soft);padding:9px 8px;border-radius:11px;cursor:pointer;font-size:13px;font-weight:700;font-family:inherit;transition:all .15s ease}
.switch button[aria-selected="true"]{border-color:var(--shu);color:var(--shu);background:var(--washi-2)}

.levels{display:flex;gap:8px;margin:0 auto 18px;background:var(--washi-2);padding:6px;border-radius:14px;border:1px solid var(--line)}
.levels button{flex:1;border:0;background:transparent;color:var(--sumi-soft);padding:11px 8px;border-radius:9px;cursor:pointer;font-size:13px;font-weight:700;line-height:1.25;transition:all .15s ease;font-family:inherit}
.levels button .lbl{display:block;font-size:11px;font-weight:500;opacity:.8;margin-top:2px}
.levels button[aria-selected="true"]{background:var(--sumi);color:var(--washi);box-shadow:0 2px 8px var(--shadow)}
.levels button[aria-selected="true"] .lbl{opacity:.7}

.hidden{display:none !important}

/* ---- CARTES ---- */
.card{background:var(--washi-2);border:1px solid var(--line);border-radius:22px;padding:34px 26px 26px;box-shadow:0 10px 30px var(--shadow);position:relative;overflow:hidden}
.progress{height:5px;background:var(--line);border-radius:99px;overflow:hidden;margin-bottom:26px}
.progress > i{display:block;height:100%;background:var(--shu);width:0;transition:width .3s ease}
.glyph-zone{position:relative;display:flex;align-items:center;justify-content:center;min-height:170px}
.glyph{font-size:118px;line-height:1;color:var(--sumi);user-select:none;transition:opacity .18s ease}
.glyph.small{font-size:88px}
.stamp{position:absolute;top:8px;right:6px;width:64px;height:64px;border-radius:50%;border:3px solid var(--shu);color:var(--shu);display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:700;opacity:0;transform:scale(1.4) rotate(-12deg);pointer-events:none}
.stamp.show{animation:stamp .5s ease forwards}
@keyframes stamp{0%{opacity:0;transform:scale(1.5) rotate(-12deg)}60%{opacity:1;transform:scale(.92) rotate(-12deg)}100%{opacity:.92;transform:scale(1) rotate(-12deg)}}
.answer-row{display:flex;gap:10px;margin-top:24px}
.answer-row .btn{flex-shrink:0;white-space:nowrap}
input[type=text]{flex:1;min-width:0;font-size:20px;padding:14px 16px;border-radius:13px;border:2px solid var(--line);background:var(--washi);color:var(--sumi);font-family:inherit;outline:none;transition:border-color .15s ease;text-align:center;letter-spacing:.04em}
input[type=text]:focus{border-color:var(--ai)}
input.ok{border-color:var(--matsuba)}
input.no{border-color:var(--shu)}
.btn{border:0;border-radius:13px;padding:0 20px;font-size:15px;font-weight:700;cursor:pointer;font-family:inherit;transition:transform .08s ease,filter .15s ease}
.btn:active{transform:translateY(1px)}
.btn-main{background:var(--sumi);color:var(--washi)}
.btn-main:hover{filter:brightness(1.12)}
.feedback{margin-top:18px;min-height:44px;text-align:center;font-size:15px;font-weight:600;display:flex;flex-direction:column;gap:2px;justify-content:center}
.feedback .romaji{font-size:22px;font-weight:800;letter-spacing:.04em}
.feedback .hintline{display:block;font-size:12px;font-weight:600;color:var(--sumi-soft);margin-top:2px}
.feedback.good{color:var(--matsuba)}
.feedback.bad{color:var(--shu)}
.under{display:flex;justify-content:space-between;align-items:center;margin-top:18px;gap:10px}
.skip{background:transparent;border:0;color:var(--sumi-soft);font-size:13px;cursor:pointer;font-family:inherit;text-decoration:underline;text-underline-offset:3px}
.skip:hover{color:var(--shu)}
.stats{display:flex;gap:10px;margin-top:20px}
.stat{flex:1;background:var(--washi-2);border:1px solid var(--line);border-radius:14px;padding:12px 8px;text-align:center}
.stat b{display:block;font-size:22px;font-weight:800;letter-spacing:-.02em}
.stat span{font-size:11px;color:var(--sumi-soft);letter-spacing:.04em}
.stat.streak b{color:var(--shu)}

/* ---- GRILLE / PUZZLE ---- */
.grid-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.grid-count{font-size:14px;font-weight:800}
.grid-count b{color:var(--shu)}
.grid-actions{display:flex;gap:8px}
.mini{border:1.5px solid var(--line);background:var(--washi-2);color:var(--sumi-soft);border-radius:10px;padding:8px 12px;font-size:12px;font-weight:700;cursor:pointer;font-family:inherit}
.mini:hover{border-color:var(--shu);color:var(--shu)}
.mini[aria-pressed="true"]{border-color:var(--ai);color:var(--ai);background:var(--washi)}
.grid-hint{font-size:12px;color:var(--sumi-soft);margin:0 0 14px}
.grid-section{margin-bottom:18px}
.grid-section h2{font-size:13px;font-weight:800;letter-spacing:.04em;color:var(--sumi);margin:0 0 4px}
.grid-section p{font-size:11px;color:var(--sumi-soft);margin:0 0 10px}
.grid-scroll{overflow-x:auto;padding-bottom:6px}
table.grid{border-collapse:separate;border-spacing:6px;margin:0 auto}
table.grid th{font-size:11px;font-weight:800;color:var(--sumi-soft);letter-spacing:.06em;padding:2px;text-align:center}
.drop{width:48px;min-height:46px;border:1.5px dashed var(--line);border-radius:11px;display:flex;align-items:center;justify-content:center;font-size:24px;line-height:1;color:var(--sumi);background:var(--washi);transition:background .12s,border-color .12s}
.drop.over{border-color:var(--ai);border-style:solid;background:var(--washi-2)}
.drop.filled{border-style:solid;border-color:var(--matsuba);background:rgba(91,122,62,.14)}
.drop.wrong{animation:wrong .35s ease}
@keyframes wrong{0%,100%{background:var(--washi);border-color:var(--line)}30%,70%{background:rgba(200,68,46,.18);border-color:var(--shu)}}
.void2{width:48px;min-height:46px;display:flex;align-items:center;justify-content:center;color:var(--sumi-soft);opacity:.28;font-size:15px}
.n-extra{display:flex;align-items:center;gap:10px;margin-top:12px}
.n-extra .n-lab{font-size:11px;font-weight:800;color:var(--sumi-soft);letter-spacing:.06em}
.tray{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:18px;padding:14px;background:var(--washi-2);border:1px solid var(--line);border-radius:16px;min-height:64px}
.tile{width:46px;height:46px;border-radius:11px;background:var(--washi);border:1.5px solid var(--line);box-shadow:0 2px 6px var(--shadow);display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:grab;font-size:24px;line-height:1;color:var(--sumi);user-select:none;touch-action:none}
.tile:active{cursor:grabbing}
.tile .r{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;font-size:9px;color:var(--sumi-soft);display:none;line-height:1;margin-top:2px}
.tray.hints .tile .r{display:block}
.tile.placed{display:none}
.tile.dragging-src{opacity:.3}
.drag-clone{position:fixed;z-index:9999;pointer-events:none;display:flex;align-items:center;justify-content:center;border-radius:11px;background:var(--washi);border:2px solid var(--ai);box-shadow:0 10px 24px rgba(0,0,0,.28);font-size:24px;line-height:1;color:var(--sumi)}
.drag-clone .r{display:none}
.grid-done-msg{text-align:center;font-weight:800;color:var(--matsuba);margin-top:10px;min-height:22px}

footer{text-align:center;margin-top:24px;color:var(--sumi-soft);font-size:12px;line-height:1.6}
footer kbd{background:var(--washi-2);border:1px solid var(--line);border-radius:5px;padding:1px 6px;font-family:inherit;font-size:11px}
.reset{margin-top:12px;background:transparent;border:1px solid var(--line);color:var(--sumi-soft);border-radius:9px;padding:7px 14px;font-size:12px;cursor:pointer;font-family:inherit}
.reset:hover{border-color:var(--shu);color:var(--shu)}

@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@media (max-width:420px){.glyph{font-size:96px}.glyph.small{font-size:72px}h1{font-size:22px}}

/* ---- Téléphone : évite les débordements + zone de saisie/validation plus pratique ---- */
@media (max-width:480px){
  .card{padding:26px 18px 20px}
  .answer-row{flex-direction:column;gap:10px}
  .answer-row .btn{width:100%;padding:14px 20px;font-size:16px}
  input[type=text]{font-size:18px}
}