/* ============================================================
   MEU JAPONÊS — Design System
   Paleta: amarelo/dourado principal · branco superfícies ·
   laranja detalhes · verde sucesso · vermelho erro
   ============================================================ */
:root{
  --gold:#f5b301; --gold-d:#e09e00; --gold-l:#ffd54a; --gold-x:#fff3cd;
  --orange:#ff8a2a; --orange-d:#f26a00;
  --ink:#26241c; --ink-soft:#5c564a; --ink-faint:#8d8575;
  --paper:#fffdf7; --paper-2:#fff7e6; --card:#ffffff;
  --line:#f0e6cf; --line-2:#e7dab8;
  --green:#22a45d; --green-bg:#e4f7ec; --red:#e5484d; --red-bg:#fdecec;
  --blue:#2f7fd6; --blue-bg:#e9f2fc;
  --shadow:0 10px 30px -12px rgba(140,110,30,.22);
  --shadow-sm:0 4px 12px -6px rgba(140,110,30,.18);
  --r:18px; --r-sm:12px; --r-lg:26px;
  --font-ja:"Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic UI","Yu Gothic","Meiryo","Noto Sans JP","BIZ UDPGothic",sans-serif;
  --font-ui:"Nunito","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --top-h:58px; --bn-h:64px;
}
html[data-theme="dark"]{
  --ink:#f4efdf; --ink-soft:#c9c1ab; --ink-faint:#9c937d;
  --paper:#17150f; --paper-2:#221e13; --card:#211d13;
  --line:#38311f; --line-2:#453c26;
  --gold:#ffc61a; --gold-d:#e0a800; --gold-l:#ffd966; --gold-x:#3a2f08;
  --shadow:0 10px 30px -12px rgba(0,0,0,.6);
  --shadow-sm:0 4px 12px -6px rgba(0,0,0,.5);
  --green:#3ecb7d; --green-bg:#17301f; --red:#ff6b6b; --red-bg:#3a1616;
  --blue:#6aa9f2; --blue-bg:#16283d;
  --orange:#ff9d4d;
}
*{box-sizing:border-box; -webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  font-family:var(--font-ui); background:var(--paper); color:var(--ink);
  line-height:1.5; min-height:100vh;
  background-image:radial-gradient(circle at 12% -6%, rgba(255,213,74,.16), transparent 42%),
                   radial-gradient(circle at 96% 4%, rgba(255,138,42,.12), transparent 38%);
  background-attachment:fixed;
}
.ja{font-family:var(--font-ja)}
button{font-family:inherit; cursor:pointer; color:inherit}
a{color:inherit; text-decoration:none}
:focus-visible{outline:3px solid var(--gold); outline-offset:2px; border-radius:6px}
.skip-link{position:absolute; left:-999px; top:6px; z-index:200; background:var(--ink); color:var(--paper); padding:8px 14px; border-radius:10px}
.skip-link:focus{left:8px}
.hidden{display:none!important}

/* ============ APP SHELL ============ */
.app-shell{min-height:100vh; display:grid; grid-template-rows:auto 1fr; grid-template-columns:auto 1fr}
.topbar{
  grid-column:1/-1; height:var(--top-h); display:flex; align-items:center; gap:10px;
  padding:0 16px; position:sticky; top:0; z-index:60;
  background:color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex; align-items:center; gap:9px; font-weight:900; font-size:19px; letter-spacing:.2px}
.brand-mark{
  width:36px;height:36px;display:grid;place-items:center;border-radius:11px;
  background:linear-gradient(135deg,var(--gold),var(--orange)); color:#fff;
  font-family:var(--font-ja); font-size:20px; box-shadow:var(--shadow-sm)
}
.icon-btn{
  border:1px solid var(--line); background:var(--card); border-radius:12px;
  width:40px;height:40px;font-size:18px;display:grid;place-items:center; transition:.15s
}
.icon-btn:hover{border-color:var(--gold); background:var(--gold-x)}
.menu-btn{display:none}
.top-stats{margin-left:auto; display:flex; gap:8px; align-items:center; flex-wrap:wrap}
.chip{
  display:inline-flex; align-items:center; gap:6px; padding:5px 11px; border-radius:999px;
  background:var(--card); border:1px solid var(--line); font-weight:800; font-size:13px
}
.chip b{color:var(--orange-d)}
.chip.xp b{color:var(--gold-d)}
.chip.streak b{color:#e5484d}

/* sidebar */
.sidebar{
  grid-row:2; width:252px; padding:18px 12px 12px; display:flex; flex-direction:column;
  border-right:1px solid var(--line); position:sticky; top:var(--top-h);
  height:calc(100vh - var(--top-h)); overflow:auto; z-index:55
}
.side-nav{display:flex; flex-direction:column; gap:3px}
.nav-group-title{font-size:11px; font-weight:900; letter-spacing:1.2px; text-transform:uppercase; color:var(--ink-faint); margin:14px 10px 4px}
.nav-link{
  display:flex; align-items:center; gap:12px; padding:10px 12px; border-radius:13px;
  font-weight:700; font-size:15px; color:var(--ink-soft); transition:.13s; position:relative
}
.nav-link:hover{background:var(--paper-2); color:var(--ink)}
.nav-link.active{background:linear-gradient(90deg,var(--gold-x),transparent 88%); color:var(--ink); font-weight:800}
.nav-link.active::before{content:""; position:absolute; left:0; top:22%; bottom:22%; width:4px; border-radius:4px; background:var(--gold)}
.nav-ic{width:26px; text-align:center; font-size:17px}
.kana-ic{font-family:var(--font-ja); font-size:18px; font-weight:800}
.kanji-ic{font-size:16px}
.nav-progress{margin-left:auto; width:34px; height:6px; border-radius:6px; background:var(--line); overflow:hidden}
.nav-progress i{display:block; height:100%; width:0%; background:linear-gradient(90deg,var(--gold),var(--orange)); border-radius:6px; transition:width .6s}
.sidebar-foot{margin-top:auto; padding:14px 10px 4px; font-size:12px; color:var(--ink-faint)}

/* main */
.main{grid-row:2; grid-column:2; padding:22px clamp(14px,3vw,34px) 40px; max-width:1080px; width:100%; margin:0 auto; outline:none}
.scrim{display:none}

/* bottom nav mobile */
.bottomnav{
  display:none; position:fixed; bottom:0; left:0; right:0; z-index:70; height:var(--bn-h);
  background:color-mix(in srgb, var(--card) 94%, transparent); backdrop-filter:blur(12px);
  border-top:1px solid var(--line); justify-content:space-around; align-items:stretch
}
.bn-link{flex:1; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:2px; font-size:10.5px; font-weight:800; color:var(--ink-faint)}
.bn-ic{font-size:20px; line-height:1}
.bn-center .bn-ic{
  width:46px;height:46px;margin-top:-22px;display:grid;place-items:center;font-size:22px;border-radius:50%;
  background:linear-gradient(135deg,var(--gold),var(--orange)); color:#fff; box-shadow:0 8px 18px -6px rgba(240,150,20,.65); border:4px solid var(--paper)
}
.bn-link.active{color:var(--orange-d)}

/* ============ CARDS / GENERIC UI ============ */
.card{
  background:var(--card); border:1px solid var(--line); border-radius:var(--r);
  padding:20px; box-shadow:var(--shadow-sm)
}
.card + .card{margin-top:14px}
.grid{display:grid; gap:14px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card-title{font-size:17px; font-weight:900; margin:0 0 4px; display:flex; align-items:center; gap:8px}
.card-sub{color:var(--ink-soft); font-size:14px; margin:0 0 14px}
.muted{color:var(--ink-faint)} .soft{color:var(--ink-soft)}
.tiny{font-size:12.5px}
.h-stack{display:flex; align-items:center; gap:10px; flex-wrap:wrap}
.spread{display:flex; justify-content:space-between; align-items:center; gap:10px; flex-wrap:wrap}

/* buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px; border:none;
  padding:12px 20px; border-radius:14px; font-weight:800; font-size:15px; line-height:1.2;
  transition:transform .1s, box-shadow .15s, filter .15s; user-select:none
}
.btn:active{transform:scale(.97)}
.btn-primary{background:linear-gradient(135deg,var(--gold),var(--orange)); color:#fff; box-shadow:0 8px 18px -8px rgba(240,150,20,.7)}
.btn-primary:hover{filter:brightness(1.05)}
.btn-ghost{background:transparent; border:2px solid var(--line-2); color:var(--ink)}
.btn-ghost:hover{border-color:var(--gold); background:var(--gold-x)}
.btn-soft{background:var(--paper-2); color:var(--ink); border:1px solid var(--line)}
.btn-danger{background:var(--red-bg); color:var(--red); border:1px solid transparent}
.btn-danger:hover{border-color:var(--red)}
.btn-green{background:var(--green); color:#fff}
.btn-block{width:100%}
.btn-sm{padding:8px 13px; font-size:13.5px; border-radius:11px}
.btn-lg{padding:16px 26px; font-size:17px; border-radius:17px}
.btn[disabled]{opacity:.5; cursor:not-allowed}

/* progress */
.pbar{height:12px; border-radius:99px; background:var(--line); overflow:hidden; flex:1; min-width:60px}
.pbar>i{display:block; height:100%; border-radius:99px; background:linear-gradient(90deg,var(--gold),var(--orange)); transition:width .7s cubic-bezier(.22,1,.36,1)}
.pbar.green>i{background:linear-gradient(90deg,#4cd787,var(--green))}
.pbar-label{font-size:12.5px; font-weight:800; color:var(--ink-soft); min-width:44px; text-align:right}

/* mastery ranks */
.rank-new{color:var(--ink-faint)} .rank-0{color:var(--red)} .rank-1{color:#e8842c}
.rank-2{color:#caa200} .rank-3{color:var(--green)} .rank-4{color:#b8860b}
.dot{display:inline-block; width:9px; height:9px; border-radius:50%; margin-right:5px; vertical-align:middle}

/* ============ VIEW: dashboard ============ */
.hero{
  border-radius:var(--r-lg); padding:clamp(22px,4vw,40px); margin-bottom:18px; position:relative; overflow:hidden;
  background:linear-gradient(120deg,var(--gold) 0%,var(--orange) 100%); color:#fff
}
.hero::after{content:"日本語"; position:absolute; right:-12px; bottom:-34px; font-family:var(--font-ja); font-size:150px; font-weight:900; opacity:.12; line-height:1; pointer-events:none}
.hero h1{margin:0 0 2px; font-size:clamp(24px,4.5vw,38px); font-weight:900; letter-spacing:.3px}
.hero p{margin:0 0 16px; opacity:.95; font-weight:600}
.stat-row{display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:12px; margin-top:14px}
.stat-pill{background:rgba(255,255,255,.16); border:1px solid rgba(255,255,255,.25); border-radius:15px; padding:11px 13px; backdrop-filter:blur(4px)}
.stat-pill .v{font-size:22px; font-weight:900; display:block; line-height:1.2}
.stat-pill .l{font-size:11.5px; font-weight:700; opacity:.92; text-transform:uppercase; letter-spacing:.6px}

.dash-cards{display:grid; grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); gap:14px; align-items:start}
.module-card{padding:18px}
.module-head{display:flex; align-items:center; gap:13px; margin-bottom:12px}
.module-emoji{font-size:26px}
.module-title{font-weight:900; font-size:17px; margin:0}
.module-title small{display:block; font-weight:700; color:var(--ink-faint); font-size:12px; margin-top:2px}
.module-body .pbar{margin:6px 0 4px}
.module-meta{display:flex; justify-content:space-between; font-size:12px; color:var(--ink-soft); font-weight:700; margin-top:2px}

/* kana / char tables */
.char-grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(74px,1fr)); gap:10px}
.char-cell{
  position:relative; background:var(--card); border:2px solid var(--line); border-radius:16px;
  padding:12px 6px 8px; display:flex; flex-direction:column; align-items:center; gap:2px;
  transition:.13s; cursor:pointer; min-height:86px
}
.char-cell:hover, .char-cell:focus-visible{transform:translateY(-3px); border-color:var(--gold); box-shadow:var(--shadow-sm); outline:none}
.char-main{font-family:var(--font-ja); font-size:34px; font-weight:800; line-height:1.15}
.char-sub{font-size:13px; font-weight:800; color:var(--ink-soft); letter-spacing:.5px}
.char-cell .cdot{position:absolute; top:7px; right:8px; font-size:11px}
.char-cell .minibar{position:absolute; left:8px; right:8px; bottom:6px; height:4px; border-radius:4px; background:var(--line); overflow:hidden}
.char-cell .minibar i{display:block; height:100%; background:var(--gold); border-radius:4px}
.group-label{font-weight:900; margin:22px 0 8px; display:flex; align-items:center; gap:8px; font-size:15px}
.group-label .g-tag{font-size:11px; background:var(--paper-2); padding:3px 9px; border-radius:99px; color:var(--ink-soft)}

/* module detail card */
.detail-hero{display:flex; align-items:center; gap:16px; flex-wrap:wrap}
.big-char{font-family:var(--font-ja); font-size:clamp(54px,10vw,92px); font-weight:800; line-height:1}
.detail-side{flex:1; min-width:200px}

/* tabs */
.tabs{display:flex; gap:6px; overflow-x:auto; padding-bottom:4px; margin-bottom:16px; scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{
  flex:0 0 auto; border:1px solid var(--line); background:var(--card); color:var(--ink-soft);
  padding:9px 15px; border-radius:999px; font-weight:800; font-size:13.5px; transition:.13s
}
.tab:hover{border-color:var(--gold)}
.tab.active{background:var(--ink); color:var(--paper); border-color:var(--ink)}
html[data-theme="dark"] .tab.active{background:var(--gold); color:#221d0e; border-color:var(--gold)}

/* flashcards */
.flash-stage{perspective:1200px; max-width:460px; margin:10px auto}
.flash-card{
  position:relative; width:100%; aspect-ratio:5/6.4; max-height:72vh;
  transform-style:preserve-3d; transition:transform .5s cubic-bezier(.2,.8,.3,1)
}
.flash-card.flipped{transform:rotateY(180deg)}
.flash-face{
  position:absolute; inset:0; backface-visibility:hidden; -webkit-backface-visibility:hidden;
  border-radius:26px; display:flex; flex-direction:column; align-items:center; justify-content:center;
  background:var(--card); border:2px solid var(--line-2); box-shadow:var(--shadow); padding:22px
}
.flash-face.back{transform:rotateY(180deg); background:linear-gradient(150deg,var(--gold-x),var(--card) 60%)}
.flash-big{font-family:var(--font-ja); font-size:clamp(64px,16vw,120px); font-weight:800; line-height:1.1}
.flash-q{font-size:16px; color:var(--ink-soft); font-weight:700; text-align:center; margin-top:6px}
.flash-rd{font-family:var(--font-ja); font-size:clamp(30px,7vw,52px); font-weight:800; margin-top:4px}
.flash-rom{font-size:clamp(22px,5vw,34px); font-weight:800; letter-spacing:1px}
.flash-pt{font-size:clamp(18px,4vw,26px); font-weight:800; color:var(--orange-d); margin-top:2px}
.flash-ex{margin-top:10px; text-align:center}
.flash-ex .w{font-family:var(--font-ja); font-size:24px; font-weight:800}
.flash-ex .rd{color:var(--ink-soft); font-weight:700}
.flash-ex .pt{color:var(--ink-faint); font-size:14px}
.flash-hint{font-size:14px; color:var(--ink-faint); margin-top:12px}
.rate-btns{display:flex; gap:8px; justify-content:center; flex-wrap:wrap; margin-top:16px}

/* ============ SESSION / QUIZ ============ */
.quiz-wrap{max-width:640px; margin:0 auto}
.quiz-top{display:flex; gap:10px; align-items:center; margin-bottom:14px; flex-wrap:wrap}
.quiz-progress{flex:1; min-width:150px}
.quiz-pill{font-size:12.5px; font-weight:800; color:var(--ink-soft); background:var(--card); border:1px solid var(--line); padding:5px 11px; border-radius:99px}
.quiz-pill b{color:var(--orange-d)}
.quiz-card{
  background:var(--card); border:1px solid var(--line); border-radius:26px; padding:clamp(20px,4vw,34px);
  box-shadow:var(--shadow); text-align:center; position:relative; overflow:hidden
}
.q-type{display:inline-block; font-size:11.5px; font-weight:900; letter-spacing:1px; text-transform:uppercase; color:var(--orange-d); background:var(--gold-x); padding:4px 12px; border-radius:99px; margin-bottom:12px}
.q-prompt{font-size:16.5px; font-weight:700; color:var(--ink-soft); margin-bottom:6px}
.q-char{font-family:var(--font-ja); font-size:clamp(70px,16vw,130px); font-weight:800; line-height:1.15; margin:4px 0}
.q-char.small{font-size:clamp(44px,9vw,76px)}
.q-char.medium{font-size:clamp(40px,8vw,64px)}
.q-rom{font-size:26px; font-weight:900; letter-spacing:1px}
.q-mean{font-size:20px; font-weight:800; color:var(--ink-soft)}
.options{display:grid; gap:10px; margin-top:22px}
.options .opt{
  border:2px solid var(--line-2); background:var(--paper); border-radius:15px; padding:14px;
  font-size:18px; font-weight:800; text-align:left; display:flex; align-items:center; gap:12px; transition:.12s
}
.options .opt:hover:not(:disabled){border-color:var(--gold); background:var(--gold-x); transform:translateY(-1px)}
.options .opt:disabled{cursor:default}
.opt-letter{flex:0 0 28px; height:28px; border-radius:9px; background:var(--line); display:grid; place-items:center; font-size:13px; font-weight:900}
.options .opt.correct{border-color:var(--green); background:var(--green-bg); animation:pop .35s}
.options .opt.correct .opt-letter{background:var(--green); color:#fff}
.options .opt.wrong{border-color:var(--red); background:var(--red-bg); animation:shake .4s}
.options .opt.wrong .opt-letter{background:var(--red); color:#fff}
.options .opt.reveal{border-color:var(--green); background:var(--green-bg)}
.opt.char-opt .jc{font-family:var(--font-ja); font-size:30px; font-weight:800; min-width:44px; text-align:center}
.opt.char-opt .jr{color:var(--ink-soft); font-weight:700; font-size:14.5px}
.opt.rom-opt .or{font-size:22px; font-weight:900}
.opt.pt-opt .op{font-size:17px; font-weight:800}
.opt.kan-opt .jk{font-family:var(--font-ja); font-size:30px; font-weight:800; min-width:46px; text-align:center}
.opt.kan-opt .km{color:var(--ink-soft); font-weight:700; font-size:13.5px}

/* answer input */
.answer-input{display:flex; gap:10px; margin-top:20px}
.answer-input input{
  flex:1; border:2px solid var(--line-2); background:var(--paper); color:var(--ink);
  border-radius:14px; padding:13px 16px; font-size:19px; font-weight:800; text-align:center; outline:none
}
.answer-input input:focus{border-color:var(--gold)}
.answer-input input.ok{border-color:var(--green); background:var(--green-bg)}
.answer-input input.no{border-color:var(--red); background:var(--red-bg); animation:shake .4s}

/* find grid */
.find-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:10px; max-width:430px; margin:18px auto 0}
.find-cell{
  border:2px solid var(--line-2); background:var(--paper); border-radius:18px; aspect-ratio:1;
  display:grid; place-items:center; font-family:var(--font-ja); font-size:clamp(30px,7vw,46px);
  font-weight:800; transition:.1s; cursor:pointer
}
.find-cell:hover{border-color:var(--gold); transform:scale(1.04)}
.find-cell.correct{border-color:var(--green); background:var(--green-bg); animation:pop .35s}
.find-cell.wrong{border-color:var(--red); background:var(--red-bg); animation:shake .4s}

/* sequence order */
.order-tray{display:flex; gap:8px; justify-content:center; flex-wrap:wrap; margin-top:20px}
.order-char{
  border:2px solid var(--line-2); background:var(--paper); border-radius:14px; min-width:64px;
  padding:10px 8px; font-family:var(--font-ja); font-size:32px; font-weight:800; cursor:pointer; transition:.12s
}
.order-char:hover{border-color:var(--gold)}
.order-char.placed{opacity:.28; pointer-events:none; text-decoration:line-through}
.order-slot{
  border:2px dashed var(--line-2); border-radius:14px; min-width:70px; height:60px;
  display:grid; place-items:center; font-family:var(--font-ja); font-size:30px; font-weight:800
}
.order-slot.filled{border-style:solid; border-color:var(--gold); background:var(--gold-x); animation:pop .25s}

/* feedback panel */
.feedback{margin-top:20px; border-radius:18px; padding:16px 18px; text-align:left; animation:pop .35s}
.feedback.ok{background:var(--green-bg); border:1px solid var(--green)}
.feedback.no{background:var(--red-bg); border:1px solid var(--red)}
.feedback h3{margin:0 0 6px; font-size:18px}
.feedback .fb-char{font-family:var(--font-ja); font-size:30px; font-weight:800; vertical-align:-4px; margin-right:6px}
.feedback .fb-rd{font-size:18px; font-weight:800}
.feedback .fb-mn{color:var(--ink-soft); font-weight:700}
.feedback .fb-ex{font-size:13.5px; color:var(--ink-soft); margin-top:8px}
.feedback .fb-xp{font-weight:900; color:var(--green); font-size:16px}

/* dnd */
.dnd-wrap{display:grid; gap:26px; max-width:660px; margin:0 auto}
.dnd-side h3{margin:0 0 10px; font-size:14px; text-transform:uppercase; letter-spacing:1px; color:var(--ink-faint); font-weight:900}
.dnd-items{display:grid; grid-template-columns:repeat(auto-fill,minmax(76px,1fr)); gap:10px}
.dnd-item{
  border:2px solid var(--line-2); background:var(--card); border-radius:15px; min-height:74px;
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:2px;
  cursor:grab; transition:.12s; user-select:none
}
.dnd-item.selected{border-color:var(--orange); box-shadow:0 0 0 4px var(--gold-x); transform:scale(1.05)}
.dnd-item.dragging{opacity:.4}
.dnd-targets{display:grid; grid-template-columns:repeat(auto-fill,minmax(130px,1fr)); gap:12px}
.dnd-target{
  border:2px dashed var(--line-2); border-radius:16px; min-height:90px; padding:10px;
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:6px; transition:.12s
}
.dnd-target.filled{border-style:solid; border-color:var(--gold); background:var(--gold-x)}
.dnd-target .t-title{font-weight:900; font-size:16px}
.dnd-target .t-sub{font-size:12px; color:var(--ink-faint); font-weight:700}
.dnd-target .t-char{font-family:var(--font-ja); font-size:36px; font-weight:800}
.dnd-result{margin-top:16px; text-align:center; font-weight:900; font-size:17px}

/* memory */
.mem-grid{display:grid; gap:10px; margin:0 auto; max-width:640px}
.mem-card{
  position:relative; aspect-ratio:1; cursor:pointer; perspective:600px; border:none; background:transparent; padding:0
}
.mem-inner{position:absolute; inset:0; transform-style:preserve-3d; transition:transform .4s}
.mem-card.flipped .mem-inner{transform:rotateY(180deg)}
.mem-card.matched .mem-inner{transform:rotateY(180deg)}
.mem-face{
  position:absolute; inset:0; backface-visibility:hidden; -webkit-backface-visibility:hidden;
  border-radius:14px; display:grid; place-items:center;
  background:linear-gradient(140deg,var(--gold),var(--orange)); color:#fff; font-size:30px; font-weight:900
}
.mem-face.back{
  transform:rotateY(180deg); background:var(--card); border:2px solid var(--line-2); color:var(--ink);
  font-family:var(--font-ja); font-size:clamp(22px,6vw,38px); font-weight:800
}
.mem-face.back.rom{font-family:var(--font-ui); font-size:clamp(16px,4.5vw,26px)}
.mem-face.back.pt{font-family:var(--font-ui); font-size:clamp(14px,4vw,22px); font-weight:800; padding:6px}
.mem-card.matched .mem-face.back{border-color:var(--green); background:var(--green-bg); color:var(--green)}
.mem-stats{display:flex; gap:14px; justify-content:center; flex-wrap:wrap; font-weight:800; color:var(--ink-soft); margin-bottom:16px}

/* stats charts */
.chart-box{background:var(--card); border:1px solid var(--line); border-radius:var(--r); padding:16px; margin-top:14px}
.chart-box h3{margin:0 0 10px; font-size:15px; font-weight:900}
canvas.chart{width:100%; height:auto; display:block}
.legend{display:flex; gap:14px; flex-wrap:wrap; font-size:12.5px; font-weight:700; color:var(--ink-soft); margin-top:8px}
.legend i{display:inline-block; width:10px; height:10px; border-radius:3px; margin-right:5px}

/* badges */
.badge-grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(150px,1fr)); gap:12px}
.badge-card{
  background:var(--card); border:1px solid var(--line); border-radius:18px; padding:18px 12px;
  text-align:center; transition:.13s
}
.badge-card.locked{opacity:.38; filter:grayscale(1)}
.badge-ic{font-size:40px; display:block; margin-bottom:6px}
.badge-name{font-weight:900; font-size:13.5px}
.badge-desc{font-size:11.5px; color:var(--ink-soft); margin-top:3px; min-height:28px}
.badge-date{font-size:11px; color:var(--green); font-weight:800; margin-top:4px}

/* settings */
.set-row{display:flex; justify-content:space-between; align-items:center; gap:14px; padding:14px 0; border-bottom:1px solid var(--line)}
.set-row:last-child{border-bottom:none}
.set-label{font-weight:800; font-size:15px}
.set-desc{font-size:12.5px; color:var(--ink-soft)}
.switch{position:relative; width:52px; height:29px; flex:0 0 auto}
.switch input{opacity:0; width:0; height:0}
.switch .sl{position:absolute; inset:0; background:var(--line-2); border-radius:99px; transition:.2s; cursor:pointer}
.switch .sl::before{content:""; position:absolute; width:22px; height:22px; left:4px; top:3.5px; border-radius:50%; background:#fff; transition:.2s; box-shadow:0 2px 5px rgba(0,0,0,.25)}
.switch input:checked + .sl{background:var(--green)}
.switch input:checked + .sl::before{transform:translateX(22px)}
select, input[type="text"], input[type="number"], input[type="search"]{
  font-family:inherit; font-size:15px; font-weight:700; color:var(--ink);
  background:var(--paper); border:2px solid var(--line-2); border-radius:12px; padding:9px 12px; outline:none
}
select:focus,input:focus{border-color:var(--gold)}
.seg{display:inline-flex; gap:4px; background:var(--paper); border:1px solid var(--line); padding:4px; border-radius:13px; flex-wrap:wrap}
.seg button{border:none; background:transparent; padding:7px 14px; border-radius:10px; font-weight:800; font-size:13.5px; color:var(--ink-soft)}
.seg button.active{background:var(--ink); color:var(--paper)}
html[data-theme="dark"] .seg button.active{background:var(--gold); color:#221d0e}

/* modals */
.modal-root{position:fixed; inset:0; z-index:100; display:grid; place-items:center; padding:16px}
.modal-root[hidden]{display:none}
.modal-back{position:absolute; inset:0; background:rgba(20,16,4,.55); backdrop-filter:blur(3px); animation:fade .2s}
.modal{
  position:relative; background:var(--card); border:1px solid var(--line); border-radius:24px;
  width:100%; max-width:480px; max-height:88vh; overflow:auto; padding:24px; box-shadow:var(--shadow); animation:rise .28s
}
.modal-close{position:sticky; float:right; top:0; border:none; background:var(--paper); color:var(--ink-soft); width:34px; height:34px; border-radius:11px; font-size:16px}
.modal-close:hover{background:var(--line)}

/* profile modal */
.profile-char{font-family:var(--font-ja); font-size:74px; font-weight:800; text-align:center; line-height:1.2}
.profile-read{font-family:var(--font-ja); font-size:30px; font-weight:800; text-align:center}
.profile-rom{text-align:center; font-weight:900; letter-spacing:2px; font-size:18px; color:var(--ink-soft)}
.profile-meaning{text-align:center; font-weight:800; color:var(--orange-d); font-size:19px; margin-bottom:12px}
.kv{display:grid; grid-template-columns:1fr 1fr; gap:8px 14px; font-size:14px}
.kv b{color:var(--ink-soft); font-weight:800}
.ex-list{margin-top:12px}
.ex-row{background:var(--paper-2); border-radius:12px; padding:9px 13px; margin-top:7px}
.ex-row .ew{font-family:var(--font-ja); font-size:19px; font-weight:800}
.ex-row .ew.kan{font-size:22px}
.ex-row .er{font-size:14px; font-weight:800; color:var(--ink-soft)}
.ex-row .ep{font-size:13px; color:var(--ink-faint)}
.phrase{background:var(--blue-bg); border-left:4px solid var(--blue); border-radius:10px; padding:9px 12px; margin-top:8px}
.phrase .pj{font-family:var(--font-ja); font-weight:800}
.phrase .pr{font-size:13.5px; font-weight:700; color:var(--ink-soft)}
.phrase .pp{font-size:13px}

/* onboarding */
.onb-options{display:grid; gap:12px; margin-top:18px}
.onb-opt{
  border:2px solid var(--line); border-radius:16px; padding:16px; display:flex; align-items:center; gap:16px;
  background:var(--paper); font-weight:800; font-size:17px; transition:.13s
}
.onb-opt:hover{border-color:var(--gold); background:var(--gold-x); transform:translateX(4px)}
.onb-opt .oc{font-family:var(--font-ja); font-size:34px; font-weight:800}

/* toasts */
.toasts{position:fixed; top:calc(var(--top-h) + 10px); left:50%; transform:translateX(-50%); z-index:150; display:flex; flex-direction:column; gap:8px; width:min(92vw,420px); pointer-events:none}
.toast{
  background:var(--ink); color:var(--paper); padding:12px 18px; border-radius:14px; font-weight:800; font-size:14.5px;
  box-shadow:0 14px 30px -10px rgba(0,0,0,.4); display:flex; gap:10px; align-items:center; animation:toastIn .3s cubic-bezier(.2,.9,.3,1.2)
}
.toast.good{background:var(--green); color:#fff}
.toast.bad{background:var(--red); color:#fff}
.toast.gold{background:linear-gradient(120deg,var(--gold),var(--orange)); color:#fff}
.toast .t-ic{font-size:22px}
.toast .t-xp{margin-left:auto; background:rgba(255,255,255,.25); padding:2px 10px; border-radius:99px; font-weight:900}
.toast.out{animation:toastOut .3s forwards}

/* confetti-ish reward */
.reward-pop{position:fixed; inset:0; display:grid; place-items:center; z-index:180; pointer-events:none}
.reward-pop .rp{animation:reward .8s cubic-bezier(.2,.9,.3,1.3) forwards; background:var(--card); border:3px solid var(--gold); border-radius:26px; padding:30px 40px; text-align:center; box-shadow:var(--shadow)}
.reward-pop .rp .ri{font-size:64px; display:block}
.reward-pop .rp .rt{font-weight:900; font-size:22px; margin-top:8px}

/* empty states */
.empty{text-align:center; padding:40px 20px; color:var(--ink-soft)}
.empty .e-ic{font-size:52px; display:block; margin-bottom:10px}
.empty .e-t{font-weight:900; font-size:18px; color:var(--ink)}
.empty p{margin:4px 0 16px; font-size:14.5px}

/* session end */
.summary-num{font-size:clamp(30px,7vw,44px); font-weight:900; line-height:1}
.summary-label{font-size:12px; text-transform:uppercase; letter-spacing:.8px; color:var(--ink-faint); font-weight:800}

/* footer mini */
.foot-note{text-align:center; margin-top:34px; font-size:12.5px; color:var(--ink-faint)}

/* animations */
@keyframes pop{0%{transform:scale(.92); opacity:.4}60%{transform:scale(1.03)}100%{transform:scale(1); opacity:1}}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-7px)}75%{transform:translateX(7px)}}
@keyframes fade{from{opacity:0}}
@keyframes rise{from{transform:translateY(26px) scale(.96); opacity:0}}
@keyframes toastIn{from{transform:translateY(-14px); opacity:0}}
@keyframes toastOut{to{transform:translateY(-14px); opacity:0}}
@keyframes reward{0%{transform:scale(.3) rotate(-8deg); opacity:0}55%{transform:scale(1.15)}100%{transform:scale(1); opacity:1}}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.floaty{animation:floaty 3s ease-in-out infinite}
@keyframes pulseGlow{0%,100%{box-shadow:0 0 0 0 rgba(245,179,1,.5)}50%{box-shadow:0 0 0 12px rgba(245,179,1,0)}}
.pulse-glow{animation:pulseGlow 2s infinite}

/* responsive */
@media (max-width:1024px){
  .sidebar{width:232px}
}
@media (max-width:860px){
  .app-shell{grid-template-columns:1fr}
  .menu-btn{display:grid}
  .sidebar{
    position:fixed; left:0; top:0; bottom:0; height:100%; width:min(82vw,300px); z-index:90;
    background:var(--paper); transform:translateX(-105%); transition:transform .26s; padding-top:calc(var(--top-h) + 8px);
    box-shadow:var(--shadow)
  }
  .sidebar.open{transform:translateX(0)}
  .scrim{position:fixed; inset:0; background:rgba(20,16,4,.5); z-index:80; opacity:0; pointer-events:none; transition:opacity .25s}
  .scrim.show{opacity:1; pointer-events:auto}
  .main{grid-column:1; padding:16px 14px calc(var(--bn-h) + 24px)}
  .bottomnav{display:flex}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .menu-btn{display:grid}
}
@media (max-width:480px){
  .grid-2{grid-template-columns:1fr}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .top-stats .chip span.lbl{display:none}
  .char-grid{grid-template-columns:repeat(auto-fill,minmax(62px,1fr))}
  .char-cell{min-height:74px}
  .char-main{font-size:28px}
  .brand-name{font-size:16px}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms!important; transition-duration:.01ms!important}
}