/* ============================================================
   LIBNEXT JAPANESE LANGUAGE LAB — design system
   Original LibNext visual identity: indigo (藍), sakura, washi.
   ============================================================ */

:root{
  /* --- brand palette --- */
  --ai-900:#12183a;      /* deep indigo ink */
  --ai-800:#1b2350;
  --ai-700:#25306b;
  --ai-600:#33418c;
  --ai-500:#4a5bb5;
  --ai-300:#8e9ad9;
  --ai-100:#dfe3f7;

  --sakura-600:#c2426b;
  --sakura-500:#e05a83;
  --sakura-400:#f07fa0;
  --sakura-200:#fbd0dc;
  --sakura-50:#fef4f7;

  --matcha-600:#3f7d55;
  --matcha-500:#4f9d6b;
  --matcha-100:#dcefe2;

  --kohaku-600:#b9762a;  /* amber */
  --kohaku-500:#e0972f;
  --kohaku-100:#fbeed6;

  --beni-600:#c0392b;
  --beni-100:#fbe1de;

  /* --- surfaces (light) --- */
  --paper:#f7f5f1;       /* washi */
  --surface:#ffffff;
  --surface-2:#f2f0ec;
  --surface-3:#e8e5df;
  --line:#ded9d1;
  --line-soft:#eae6e0;

  --ink:#1a1a22;
  --ink-2:#4e4e5c;
  --ink-3:#7a7a88;
  --ink-inv:#ffffff;

  --accent:var(--ai-600);
  --accent-soft:var(--ai-100);

  --radius-s:8px; --radius:14px; --radius-l:20px; --radius-xl:28px;
  --shadow-1:0 1px 2px rgba(18,24,58,.06), 0 2px 8px rgba(18,24,58,.05);
  --shadow-2:0 2px 6px rgba(18,24,58,.07), 0 10px 28px rgba(18,24,58,.09);
  --shadow-3:0 8px 24px rgba(18,24,58,.12), 0 24px 60px rgba(18,24,58,.14);

  --ff-ui:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --ff-ja:"Noto Sans JP","Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic",
          "Yu Gothic UI","MS PGothic",Meiryo,sans-serif;
  --ff-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;

  --maxw:1160px;
  --nav-h:62px;
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#0f1220;
    --surface:#171b2e;
    --surface-2:#1e2338;
    --surface-3:#2a3050;
    --line:#2e3552;
    --line-soft:#242942;

    --ink:#eceaf5;
    --ink-2:#b3b2c6;
    --ink-3:#8484a0;

    --ai-100:#242c58;
    --ai-300:#7d8ad0;
    --accent:#7d8ad0;
    --accent-soft:#242c58;

    --sakura-200:#5c2740;
    --sakura-50:#231522;
    --matcha-100:#1c3a29;
    --kohaku-100:#3a2c14;
    --beni-100:#3b1d1a;

    --shadow-1:0 1px 2px rgba(0,0,0,.3), 0 2px 8px rgba(0,0,0,.25);
    --shadow-2:0 2px 6px rgba(0,0,0,.35), 0 10px 28px rgba(0,0,0,.3);
    --shadow-3:0 8px 24px rgba(0,0,0,.4), 0 24px 60px rgba(0,0,0,.45);
  }
}
:root[data-theme="dark"]{
  --paper:#0f1220; --surface:#171b2e; --surface-2:#1e2338; --surface-3:#2a3050;
  --line:#2e3552; --line-soft:#242942;
  --ink:#eceaf5; --ink-2:#b3b2c6; --ink-3:#8484a0;
  --ai-100:#242c58; --ai-300:#7d8ad0; --accent:#7d8ad0; --accent-soft:#242c58;
  --sakura-200:#5c2740; --sakura-50:#231522; --matcha-100:#1c3a29;
  --kohaku-100:#3a2c14; --beni-100:#3b1d1a;
  --shadow-1:0 1px 2px rgba(0,0,0,.3), 0 2px 8px rgba(0,0,0,.25);
  --shadow-2:0 2px 6px rgba(0,0,0,.35), 0 10px 28px rgba(0,0,0,.3);
  --shadow-3:0 8px 24px rgba(0,0,0,.4), 0 24px 60px rgba(0,0,0,.45);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; font-family:var(--ff-ui); background:var(--paper); color:var(--ink);
  font-size:16px; line-height:1.6; overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
:lang(ja),.ja{font-family:var(--ff-ja)}

h1,h2,h3,h4{margin:0; line-height:1.25; font-weight:700; letter-spacing:-.01em}
p{margin:0 0 .85em}
p:last-child{margin-bottom:0}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%; height:auto}
button{font:inherit; color:inherit}

:focus-visible{outline:3px solid var(--sakura-500); outline-offset:2px; border-radius:4px}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0}

.skip-link{position:absolute;left:-999px;top:0;z-index:200;background:var(--ai-800);
  color:#fff;padding:12px 18px;border-radius:0 0 var(--radius) 0}
.skip-link:focus{left:0}

/* ============================================================ layout */
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 20px}

/* ============================================================ top bar */
.topbar{
  position:sticky; top:0; z-index:80; height:var(--nav-h);
  background:color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line-soft);
}
.topbar-in{max-width:var(--maxw);margin:0 auto;padding:0 20px;height:100%;
  display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.02em;
  color:var(--ink);flex-shrink:0}
.brand:hover{text-decoration:none}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(150deg,var(--ai-700),var(--ai-500) 55%,var(--sakura-500));
  display:grid;place-items:center;color:#fff;font-size:17px;font-family:var(--ff-ja);
  box-shadow:var(--shadow-1)
}
.brand-txt{font-size:15px;line-height:1.1}
.brand-txt small{display:block;font-size:10.5px;font-weight:600;color:var(--ink-3);
  letter-spacing:.09em;text-transform:uppercase}

.nav{display:flex;gap:2px;margin-left:auto;align-items:center}
.nav button{
  background:none;border:0;padding:8px 13px;border-radius:10px;cursor:pointer;
  font-size:13.5px;font-weight:600;color:var(--ink-2);white-space:nowrap;
  transition:background .15s, color .15s
}
.nav button:hover{background:var(--surface-2);color:var(--ink)}
.nav button[aria-current="page"]{background:var(--accent-soft);color:var(--accent)}
.nav-icon{display:none}

.topbar-actions{display:flex;align-items:center;gap:8px;margin-left:8px}
.streak-chip{
  display:flex;align-items:center;gap:5px;padding:5px 11px;border-radius:999px;
  background:var(--kohaku-100);color:var(--kohaku-600);font-size:13px;font-weight:700;
  border:1px solid color-mix(in srgb,var(--kohaku-500) 25%, transparent)
}
.icon-btn{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);cursor:pointer;display:grid;place-items:center;font-size:15px;
  transition:background .15s,border-color .15s
}
.icon-btn:hover{background:var(--surface-2);border-color:var(--ai-300)}
/* inline pronunciation button, sits on the text baseline */
.icon-btn.speak{display:inline-grid;vertical-align:-4px;width:24px;height:24px;font-size:11px;
  border-radius:7px;opacity:.55;margin-left:5px}
.icon-btn.speak:hover{opacity:1}

/* mobile nav */
@media (max-width:860px){
  .brand-txt{display:none}
  .nav{gap:0;margin-left:0;width:100%;justify-content:space-around;
    position:fixed;bottom:0;left:0;right:0;z-index:90;
    background:color-mix(in srgb,var(--surface) 96%, transparent);
    backdrop-filter:blur(14px);
    border-top:1px solid var(--line);padding:6px 4px calc(6px + env(safe-area-inset-bottom))}
  .nav button{flex-direction:column;gap:3px;display:flex;align-items:center;
    font-size:10.5px;padding:6px 4px;flex:1;border-radius:12px}
  .nav-icon{display:block;font-size:18px;line-height:1}
  body{padding-bottom:74px}
  .topbar-actions{margin-left:auto}
}

/* ============================================================ hero */
.hero{position:relative;overflow:hidden;padding:44px 0 40px;
  background:linear-gradient(168deg,var(--ai-900),var(--ai-700) 48%,var(--ai-600));
  color:#fff}
.hero::after{
  content:"";position:absolute;inset:auto 0 -1px 0;height:80px;
  background:
    radial-gradient(120% 100% at 22% 100%, rgba(255,255,255,.11) 0 42%, transparent 43%),
    radial-gradient(150% 120% at 68% 100%, rgba(255,255,255,.08) 0 46%, transparent 47%);
  pointer-events:none
}
.hero::before{
  content:"";position:absolute;top:-70px;right:-60px;width:280px;height:280px;
  border-radius:50%;background:radial-gradient(circle at 35% 35%,
    rgba(240,127,160,.34), rgba(240,127,160,0) 68%);pointer-events:none
}
.hero-in{position:relative;z-index:1}
.hero h1{font-size:clamp(25px,4.4vw,40px);letter-spacing:-.025em;margin-bottom:8px}
.hero .sub{color:rgba(255,255,255,.76);font-size:15.5px;max-width:60ch}
.hero-greet{font-family:var(--ff-ja);font-size:15px;color:var(--sakura-200);
  font-weight:600;margin-bottom:6px}

.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;align-items:center}

/* ============================================================ buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:12px;border:1px solid transparent;cursor:pointer;
  font-size:14.5px;font-weight:650;letter-spacing:-.005em;
  transition:transform .12s, box-shadow .18s, background .18s, border-color .18s;
  text-decoration:none;white-space:nowrap
}
.btn:hover{text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--sakura-500);color:#fff;box-shadow:0 3px 14px rgba(224,90,131,.4)}
.btn-primary:hover{background:var(--sakura-600);box-shadow:0 5px 20px rgba(224,90,131,.5)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.28)}
.btn-ghost:hover{background:rgba(255,255,255,.2)}
.btn-solid{background:var(--ai-600);color:#fff}
.btn-solid:hover{background:var(--ai-700)}
.btn-quiet{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-quiet:hover{background:var(--surface-2);border-color:var(--ai-300)}
.btn-sm{padding:7px 14px;font-size:13px;border-radius:10px}
.btn-lg{padding:14px 26px;font-size:16px;border-radius:14px}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}
.btn-block{width:100%}

/* ============================================================ cards & sections */
section.page{padding:34px 0 60px}
.page-head{margin-bottom:22px}
.page-head h2{font-size:clamp(21px,3vw,28px);letter-spacing:-.02em}
.page-head p{color:var(--ink-2);font-size:14.5px;margin-top:5px}

.card{
  background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);padding:22px
}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(168px,1fr))}

.stat{
  background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--radius);
  padding:16px 18px;box-shadow:var(--shadow-1);position:relative;overflow:hidden
}
.stat .lbl{font-size:11.5px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;
  color:var(--ink-3);display:flex;align-items:center;gap:6px}
.stat .val{font-size:27px;font-weight:800;letter-spacing:-.03em;margin-top:5px;
  font-variant-numeric:tabular-nums}
.stat .val small{font-size:14px;font-weight:600;color:var(--ink-3);letter-spacing:0}
.stat .foot{font-size:12.5px;color:var(--ink-3);margin-top:3px}

/* progress bars */
.bar{height:9px;border-radius:999px;background:var(--surface-3);overflow:hidden;position:relative}
.bar>i{display:block;height:100%;border-radius:999px;
  background:linear-gradient(90deg,var(--ai-500),var(--sakura-500));
  transition:width .8s cubic-bezier(.2,.8,.25,1)}
.bar.m>i{background:linear-gradient(90deg,var(--matcha-500),var(--matcha-600))}
.bar.k>i{background:linear-gradient(90deg,var(--kohaku-500),var(--kohaku-600))}
.bar.w>i{background:linear-gradient(90deg,#d8604f,var(--beni-600))}
.bar-row{display:flex;align-items:center;gap:12px}
.bar-row .bar{flex:1}
.bar-row .pct{font-size:13px;font-weight:700;color:var(--ink-2);min-width:42px;
  text-align:right;font-variant-numeric:tabular-nums}

/* ============================================================ roadmap */
.roadmap{position:relative}
.rm-group{margin-bottom:30px}
.rm-group h3{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);
  margin-bottom:14px;display:flex;align-items:center;gap:10px}
.rm-group h3::after{content:"";flex:1;height:1px;background:var(--line-soft)}
.rm-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}

.lesson-card{
  position:relative;text-align:left;width:100%;cursor:pointer;
  background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--radius-l);
  padding:18px;box-shadow:var(--shadow-1);
  transition:transform .18s cubic-bezier(.2,.8,.25,1), box-shadow .18s, border-color .18s;
  display:flex;flex-direction:column;gap:10px;min-height:150px
}
.lesson-card:hover:not(.locked){transform:translateY(-3px);box-shadow:var(--shadow-2);
  border-color:var(--ai-300)}
.lesson-card.locked{opacity:.56;cursor:not-allowed}
.lesson-card.current{border-color:var(--sakura-400);
  box-shadow:0 0 0 3px var(--sakura-200), var(--shadow-2)}
.lc-top{display:flex;align-items:flex-start;gap:11px}
.lc-badge{
  width:44px;height:44px;flex-shrink:0;border-radius:13px;display:grid;place-items:center;
  font-size:19px;background:var(--accent-soft);color:var(--accent);font-weight:800
}
.lesson-card.done .lc-badge{background:var(--matcha-100);color:var(--matcha-600)}
.lesson-card.current .lc-badge{background:var(--sakura-200);color:var(--sakura-600)}
.lc-id{font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink-3)}
.lc-title{font-size:15px;font-weight:700;letter-spacing:-.015em;line-height:1.3;margin-top:2px}
.lc-sub{font-size:12.5px;color:var(--ink-3);line-height:1.4}
.lc-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px}
.pill{
  display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:999px;
  font-size:11.5px;font-weight:700;letter-spacing:.01em
}
.pill.done{background:var(--matcha-100);color:var(--matcha-600)}
.pill.now{background:var(--sakura-200);color:var(--sakura-600)}
.pill.lock{background:var(--surface-3);color:var(--ink-3)}
.pill.open{background:var(--accent-soft);color:var(--accent)}
.pill.wip{background:var(--kohaku-100);color:var(--kohaku-600)}
.lc-score{font-size:12px;font-weight:700;color:var(--ink-3);font-variant-numeric:tabular-nums}

/* ============================================================ lesson reader */
.lesson-head{
  background:linear-gradient(160deg,var(--ai-800),var(--ai-600));color:#fff;
  border-radius:var(--radius-xl);padding:26px 28px;margin-bottom:22px;position:relative;
  overflow:hidden
}
.lesson-head::before{content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;
  border-radius:50%;background:radial-gradient(circle at 40% 40%,rgba(240,127,160,.3),transparent 70%)}
.lh-in{position:relative;z-index:1}
.lh-kicker{font-size:11.5px;font-weight:800;letter-spacing:.13em;text-transform:uppercase;
  color:var(--sakura-200);margin-bottom:6px}
.lesson-head h2{font-size:clamp(21px,3.4vw,30px);letter-spacing:-.025em}
.lesson-head .sub{color:rgba(255,255,255,.75);font-size:14.5px;margin-top:4px}

.objectives{background:var(--surface);border:1px solid var(--line-soft);
  border-radius:var(--radius);padding:18px 20px;margin-bottom:20px;box-shadow:var(--shadow-1)}
.objectives h3{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);
  margin-bottom:10px}
.objectives ol{margin:0;padding-left:20px}
.objectives li{margin-bottom:5px;font-size:14.5px;color:var(--ink-2)}
.objectives li:last-child{margin-bottom:0}

.lcard{
  background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--radius-l);
  padding:22px 24px;margin-bottom:16px;box-shadow:var(--shadow-1)
}
.lcard>h3{font-size:17px;letter-spacing:-.015em;margin-bottom:12px;
  display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.lcard .note{font-size:14px;color:var(--ink-2);margin-bottom:14px}
.lcard .foot-note{font-size:13px;color:var(--ink-3);margin-top:12px;padding-top:12px;
  border-top:1px dashed var(--line)}
.lcard p{font-size:15px;color:var(--ink-2)}

.lcard.culture{background:linear-gradient(150deg,var(--sakura-50),var(--surface) 62%);
  border-color:var(--sakura-200)}
.lcard.culture>h3{color:var(--sakura-600)}
.lcard.tip{background:var(--kohaku-100);border-color:color-mix(in srgb,var(--kohaku-500) 30%,transparent)}
.lcard.tip>h3{color:var(--kohaku-600)}

/* content tables */
.tbl-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;max-width:100%}
table.t{width:100%;border-collapse:collapse;font-size:14px;min-width:min(100%,420px)}
table.t th{text-align:left;font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--ink-3);font-weight:800;padding:0 12px 8px;border-bottom:1px solid var(--line)}
table.t td{padding:9px 12px;border-bottom:1px solid var(--line-soft);vertical-align:top}
table.t tr:last-child td{border-bottom:0}
table.t td b{color:var(--ink);font-weight:750}
table.t .num{font-weight:800;font-variant-numeric:tabular-nums;color:var(--accent);
  white-space:nowrap}
table.t .kana{font-family:var(--ff-ja);font-size:17px}
table.t .never{color:var(--beni-600);font-size:12.5px;font-style:italic}

.chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}
.chip{background:var(--surface-2);border:1px solid var(--line);border-radius:999px;
  padding:5px 12px;font-size:13px;font-weight:600;color:var(--ink-2)}

/* phrases */
.phrase{border-left:3px solid var(--ai-300);padding:2px 0 2px 15px;margin-bottom:16px}
.phrase:last-child{margin-bottom:0}
.phrase .p-ja{font-size:17px;font-weight:700;letter-spacing:-.01em}
.phrase .p-en{font-size:14.5px;color:var(--ink-2);margin-top:2px}
.phrase .p-note{font-size:13px;color:var(--ink-3);margin-top:7px;line-height:1.55}

/* dialogue */
.dlg{background:var(--surface-2);border-radius:var(--radius);padding:16px 18px}
.dlg-line{display:grid;grid-template-columns:minmax(88px,auto) 1fr;gap:6px 14px;
  padding:9px 0;border-bottom:1px solid var(--line-soft)}
.dlg-line:last-child{border-bottom:0}
.dlg-who{font-size:12.5px;font-weight:700;color:var(--accent)}
.dlg-ja{font-size:15.5px;font-weight:650}
.dlg-en{font-size:13.5px;color:var(--ink-3);grid-column:2}
@media (max-width:520px){
  .dlg-line{grid-template-columns:1fr}
  .dlg-en{grid-column:1}
}

/* steps */
.steps{counter-reset:s;margin:0;padding:0;list-style:none}
.steps li{counter-increment:s;position:relative;padding-left:42px;margin-bottom:15px}
.steps li:last-child{margin-bottom:0}
.steps li::before{content:counter(s);position:absolute;left:0;top:-1px;width:28px;height:28px;
  border-radius:9px;background:var(--accent-soft);color:var(--accent);display:grid;
  place-items:center;font-size:13px;font-weight:800}
.steps b{display:block;font-size:14.5px;margin-bottom:2px}
.steps span{font-size:13.5px;color:var(--ink-2)}

.aside-box{background:var(--surface-2);border-radius:var(--radius);padding:14px 16px;
  margin-top:14px}
.aside-box .lbl{font-size:11px;letter-spacing:.09em;text-transform:uppercase;
  font-weight:800;color:var(--ink-3);margin-bottom:8px}
.aside-box .r{display:flex;gap:12px;padding:5px 0;font-size:14px}
.aside-box .r b{min-width:130px;font-weight:700}
.aside-box .r span{color:var(--ink-2)}

/* ============================================================ quiz */
.quiz-shell{max-width:720px;margin:0 auto}
.quiz-top{display:flex;align-items:center;gap:14px;margin-bottom:20px}
.quiz-top .bar{flex:1}
.quiz-count{font-size:13px;font-weight:700;color:var(--ink-3);
  font-variant-numeric:tabular-nums;white-space:nowrap}
.quiz-card{background:var(--surface);border:1px solid var(--line-soft);
  border-radius:var(--radius-xl);padding:28px;box-shadow:var(--shadow-2)}
.q-topic{font-size:11.5px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  color:var(--accent);margin-bottom:10px}
.q-prompt{font-size:clamp(18px,2.6vw,23px);font-weight:700;letter-spacing:-.02em;
  line-height:1.4;margin-bottom:22px}
.q-prompt b{font-family:var(--ff-ja);font-weight:800}

.choices{display:grid;gap:10px}
.choice{
  display:flex;align-items:center;gap:13px;width:100%;text-align:left;cursor:pointer;
  padding:15px 17px;border-radius:var(--radius);border:1.5px solid var(--line);
  background:var(--surface);font-size:15.5px;font-weight:600;color:var(--ink);
  transition:border-color .15s, background .15s, transform .12s
}
.choice:hover:not(:disabled){border-color:var(--ai-300);background:var(--surface-2)}
.choice:active:not(:disabled){transform:scale(.99)}
.choice .k{width:26px;height:26px;flex-shrink:0;border-radius:8px;background:var(--surface-3);
  color:var(--ink-3);display:grid;place-items:center;font-size:12px;font-weight:800}
.choice.correct{border-color:var(--matcha-500);background:var(--matcha-100)}
.choice.correct .k{background:var(--matcha-500);color:#fff}
.choice.wrong{border-color:var(--beni-600);background:var(--beni-100)}
.choice.wrong .k{background:var(--beni-600);color:#fff}
.choice:disabled{cursor:default}

.typebox{display:flex;gap:10px;flex-wrap:wrap}
.typebox input{
  flex:1;min-width:200px;padding:15px 17px;border-radius:var(--radius);
  border:1.5px solid var(--line);background:var(--surface);color:var(--ink);
  font-size:17px;font-family:var(--ff-ui)
}
.typebox input.ja{font-family:var(--ff-ja)}
.typebox input:focus{outline:none;border-color:var(--ai-500);
  box-shadow:0 0 0 3px var(--accent-soft)}
.typebox input.correct{border-color:var(--matcha-500);background:var(--matcha-100)}
.typebox input.wrong{border-color:var(--beni-600);background:var(--beni-100)}
.type-hint{font-size:12.5px;color:var(--ink-3);margin-top:9px}

.feedback{margin-top:20px;border-radius:var(--radius);padding:17px 19px;font-size:14.5px}
.feedback.ok{background:var(--matcha-100);border:1px solid var(--matcha-500)}
.feedback.no{background:var(--beni-100);border:1px solid var(--beni-600)}
.feedback h4{font-size:16px;margin-bottom:8px}
.feedback .kv{display:flex;gap:10px;font-size:14px;padding:3px 0}
.feedback .kv b{min-width:112px;color:var(--ink-3);font-weight:700;font-size:13px}
.feedback .exp{margin-top:10px;padding-top:10px;border-top:1px solid
  color-mix(in srgb,var(--ink) 12%,transparent);font-size:13.5px;color:var(--ink-2);line-height:1.6}
.feedback .exp b{font-family:var(--ff-ja)}

.quiz-actions{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}

/* results */
.result{text-align:center;max-width:560px;margin:0 auto}
.result .ring{width:170px;height:170px;margin:0 auto 22px;position:relative}
.result .ring svg{transform:rotate(-90deg)}
.result .ring .mid{position:absolute;inset:0;display:grid;place-content:center;text-align:center}
.result .ring .pct{font-size:38px;font-weight:800;letter-spacing:-.04em;
  font-variant-numeric:tabular-nums}
.result .ring .lbl{font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink-3);font-weight:700}
.result h2{font-size:26px;margin-bottom:8px}
.result .msg{color:var(--ink-2);font-size:15px;margin-bottom:24px}
.res-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:24px}
.res-stats .s{background:var(--surface);border:1px solid var(--line-soft);
  border-radius:var(--radius);padding:14px 10px}
.res-stats .s .v{font-size:22px;font-weight:800;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums}
.res-stats .s .l{font-size:11px;letter-spacing:.07em;text-transform:uppercase;
  color:var(--ink-3);font-weight:700;margin-top:2px}

/* ============================================================ hiragana lab */
.hira-toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:18px}
.seg{display:inline-flex;background:var(--surface-2);border-radius:11px;padding:3px;
  border:1px solid var(--line-soft)}
.seg button{border:0;background:none;padding:7px 14px;border-radius:9px;cursor:pointer;
  font-size:13px;font-weight:650;color:var(--ink-2);transition:background .15s,color .15s}
.seg button[aria-pressed="true"]{background:var(--surface);color:var(--ink);
  box-shadow:var(--shadow-1)}

.chart-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:4px}
.chart{display:grid;gap:7px;justify-content:start;align-content:start;
  grid-auto-rows:min-content}
.chart-h{font-size:10.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3);
  font-weight:800;text-align:center;padding-bottom:2px}

.legend{display:flex;flex-wrap:wrap;gap:16px;margin-top:16px;padding-top:14px;
  border-top:1px solid var(--line-soft);font-size:12px;color:var(--ink-3);font-weight:600}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend .sw{width:13px;height:13px;border-radius:4px;display:inline-block;border:1.5px solid var(--line)}
.legend .sw.mastered{background:var(--matcha-100);border-color:var(--matcha-500)}
.legend .sw.learning{background:var(--surface);border-color:var(--kohaku-500)}
.legend .sw.weak{background:var(--beni-100);border-color:var(--beni-600)}
.legend .sw.new{background:var(--surface);border-color:var(--line)}

.kana-cell{
  position:relative;aspect-ratio:1;border-radius:13px;cursor:pointer;
  border:1px solid var(--line);background:var(--surface);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;
  transition:transform .14s, box-shadow .16s, border-color .16s;overflow:hidden;
  padding:0
}
.kana-cell:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--ai-500)}
.kana-cell .c{font-family:var(--ff-ja);font-size:clamp(20px,4.6vw,27px);line-height:1;
  font-weight:500}
.kana-cell .r{font-size:10.5px;color:var(--ink-3);font-weight:700;letter-spacing:.03em}
/* keeps the exact geometry of a real cell so grid rows stay square */
.kana-cell.empty{visibility:hidden;pointer-events:none}
.kana-cell .m{position:absolute;left:0;bottom:0;height:3px;
  background:linear-gradient(90deg,var(--matcha-500),var(--matcha-600));
  transition:width .6s cubic-bezier(.2,.8,.25,1)}
.kana-cell.mastered{border-color:var(--matcha-500);background:var(--matcha-100)}
.kana-cell.learning{border-color:var(--kohaku-500)}
.kana-cell.weak{border-color:var(--beni-600);background:var(--beni-100)}
.kana-cell.locked{opacity:.42}

@media (max-width:600px){
  .chart{gap:5px}
  .kana-cell .c{font-size:19px}
  .kana-cell .r{font-size:9px}
}

/* char detail modal */
.modal-back{position:fixed;inset:0;z-index:150;background:rgba(12,14,30,.55);
  backdrop-filter:blur(4px);display:grid;place-items:center;padding:20px}
.modal{background:var(--surface);border-radius:var(--radius-xl);padding:28px;
  max-width:420px;width:100%;box-shadow:var(--shadow-3);position:relative;
  max-height:88vh;overflow-y:auto}
.modal .close{position:absolute;top:14px;right:14px}
.kana-big{font-family:var(--ff-ja);font-size:96px;line-height:1;text-align:center;
  margin-bottom:6px;font-weight:500}
.kana-rom{text-align:center;font-size:19px;font-weight:800;letter-spacing:.06em;
  color:var(--accent);text-transform:lowercase;margin-bottom:18px}
.kv-list{display:grid;gap:9px;margin-bottom:18px}
.kv-list .r{display:flex;justify-content:space-between;gap:12px;font-size:14px;
  padding:7px 0;border-bottom:1px solid var(--line-soft)}
.kv-list .r:last-child{border-bottom:0}
.kv-list .r b{color:var(--ink-3);font-weight:650;font-size:13px}
.modal-actions{display:grid;gap:9px}

/* ============================================================ vocabulary */
.search-bar{position:relative;margin-bottom:16px}
.search-bar input{
  width:100%;padding:14px 16px 14px 44px;border-radius:14px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink);font-size:15.5px;font-family:var(--ff-ja)
}
.search-bar input:focus{outline:none;border-color:var(--ai-500);
  box-shadow:0 0 0 3px var(--accent-soft)}
.search-bar .ico{position:absolute;left:15px;top:50%;transform:translateY(-50%);
  color:var(--ink-3);font-size:16px;pointer-events:none}

.vocab-list{display:grid;gap:8px}
.vrow{
  display:grid;grid-template-columns:minmax(90px,1.1fr) minmax(80px,1fr) 1.6fr auto;
  gap:14px;align-items:center;
  background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--radius);
  padding:12px 15px;transition:border-color .15s
}
.vrow:hover{border-color:var(--ai-300)}
.vrow .v-kana{font-family:var(--ff-ja);font-size:17px;font-weight:600}
.vrow .v-rom{font-size:13.5px;color:var(--accent);font-weight:650}
.vrow .v-en{font-size:14px;color:var(--ink-2)}
.vrow .v-meta{display:flex;gap:6px;align-items:center}
.star{background:none;border:0;cursor:pointer;font-size:17px;opacity:.3;padding:4px;
  border-radius:8px;transition:opacity .15s,transform .15s;line-height:1}
.star:hover{opacity:.7;transform:scale(1.12)}
.star.on{opacity:1}
.v-lesson{font-size:10.5px;font-weight:800;letter-spacing:.06em;color:var(--ink-3);
  background:var(--surface-2);border-radius:6px;padding:3px 7px;white-space:nowrap}
@media (max-width:640px){
  .vrow{grid-template-columns:1fr auto;gap:4px 10px}
  .vrow .v-rom{grid-column:1;font-size:12.5px}
  .vrow .v-en{grid-column:1}
  .vrow .v-meta{grid-row:1/4;grid-column:2;flex-direction:column}
}

/* flashcards */
.fc-stage{max-width:480px;margin:0 auto}
.fc{position:relative;height:290px;cursor:pointer;perspective:1400px;margin-bottom:20px}
.fc-inner{position:relative;width:100%;height:100%;transition:transform .6s cubic-bezier(.3,.9,.3,1);
  transform-style:preserve-3d}
.fc.flip .fc-inner{transform:rotateY(180deg)}
.fc-face{position:absolute;inset:0;backface-visibility:hidden;border-radius:var(--radius-xl);
  border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-2);
  display:grid;place-content:center;text-align:center;padding:26px;gap:8px}
.fc-back{transform:rotateY(180deg);
  background:linear-gradient(155deg,var(--surface),var(--accent-soft))}
.fc-kana{font-family:var(--ff-ja);font-size:clamp(38px,9vw,58px);font-weight:600;line-height:1.2}
.fc-rom{font-size:19px;font-weight:750;color:var(--accent)}
.fc-en{font-size:19px;font-weight:650}
.fc-kanji{font-family:var(--ff-ja);font-size:26px;color:var(--ink-2)}
.fc-hint{font-size:12px;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3);
  font-weight:700;margin-top:8px}
.fc-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}

/* ============================================================ mistakes / lists */
.mrow{background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--radius);
  padding:15px 17px;margin-bottom:9px}
.mrow .m-q{font-size:14.5px;font-weight:650;margin-bottom:8px}
.mrow .m-q b{font-family:var(--ff-ja)}
.mrow .m-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:12.5px}
.tag{background:var(--surface-2);border-radius:6px;padding:3px 8px;font-size:11.5px;
  font-weight:700;color:var(--ink-3)}
.tag.bad{background:var(--beni-100);color:var(--beni-600)}
.tag.good{background:var(--matcha-100);color:var(--matcha-600)}

.empty{text-align:center;padding:52px 22px;color:var(--ink-3)}
.empty .e-ico{font-size:44px;margin-bottom:12px;opacity:.65}
.empty h3{font-size:17px;color:var(--ink-2);margin-bottom:6px}
.empty p{font-size:14px;max-width:38ch;margin:0 auto}

/* achievements */
.ach{display:flex;gap:13px;align-items:center;background:var(--surface);
  border:1px solid var(--line-soft);border-radius:var(--radius);padding:15px 17px}
.ach.locked{opacity:.5}
.ach .a-ico{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  font-size:22px;background:var(--surface-2);flex-shrink:0}
.ach.got .a-ico{background:var(--kohaku-100)}
.ach .a-t{font-size:14.5px;font-weight:700}
.ach .a-d{font-size:12.5px;color:var(--ink-3);margin-top:1px}

/* practice centre */
.pc-tile{
  display:flex;gap:14px;align-items:center;text-align:left;width:100%;cursor:pointer;
  background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--radius-l);
  padding:19px;box-shadow:var(--shadow-1);
  transition:transform .16s, box-shadow .18s, border-color .18s
}
.pc-tile:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-2);
  border-color:var(--ai-300)}
.pc-tile:disabled{opacity:.5;cursor:not-allowed}
.pc-ico{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  font-size:22px;background:var(--accent-soft);flex-shrink:0}
.pc-t{font-size:15.5px;font-weight:700;letter-spacing:-.01em}
.pc-d{font-size:12.5px;color:var(--ink-3);margin-top:2px}

/* geography */
.region{background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--radius-l);
  padding:18px 20px}
.region h3{font-size:16px;display:flex;align-items:baseline;gap:9px;margin-bottom:12px}
.region h3 .jp{font-family:var(--ff-ja);color:var(--accent)}
.pref-grid{display:grid;gap:7px;grid-template-columns:repeat(auto-fill,minmax(140px,1fr))}
.pref{background:var(--surface-2);border-radius:10px;padding:9px 11px;font-size:13px}
.pref .p-jp{font-family:var(--ff-ja);font-size:15px;font-weight:600}
.pref .p-rm{font-size:12px;color:var(--ink-3);font-weight:600}

/* misc */
.notice{background:var(--kohaku-100);border:1px solid color-mix(in srgb,var(--kohaku-500) 32%,transparent);
  border-radius:var(--radius);padding:15px 17px;font-size:14px;color:var(--ink-2);
  display:flex;gap:11px;align-items:flex-start}
.notice .n-ico{font-size:18px;flex-shrink:0;line-height:1.4}
.notice b{color:var(--kohaku-600)}

.toast-host{position:fixed;left:50%;bottom:26px;transform:translateX(-50%);z-index:200;
  display:flex;flex-direction:column;gap:9px;align-items:center;pointer-events:none;
  width:min(92vw,420px)}
@media (max-width:860px){.toast-host{bottom:88px}}
.toast{background:var(--ai-900);color:#fff;border-radius:14px;padding:13px 19px;
  font-size:14px;font-weight:600;box-shadow:var(--shadow-3);display:flex;gap:10px;
  align-items:center;width:100%}
.toast .t-ico{font-size:19px}
.toast.ach{background:linear-gradient(120deg,var(--kohaku-600),var(--sakura-600))}

footer.site{border-top:1px solid var(--line-soft);padding:26px 0 40px;margin-top:30px;
  font-size:12.5px;color:var(--ink-3)}
footer.site .f-in{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between}

.loading{display:grid;place-items:center;min-height:60vh;gap:14px;color:var(--ink-3)}
.spinner{width:34px;height:34px;border-radius:50%;border:3px solid var(--line);
  border-top-color:var(--accent);animation:spin .8s linear infinite}

/* ============================================================
   JAPAN EXPLORER — interactive SVG map
   Geometry is neutral; every colour and behaviour below is LibNext's.
   ============================================================ */
:root{
  --reg-hokkaido:#5b8dd6;
  --reg-tohoku:#5aa9a3;
  --reg-kanto:#e05a83;
  --reg-chubu:#e0972f;
  --reg-kinki:#8a6fd0;
  --reg-chugoku:#4f9d6b;
  --reg-shikoku:#d0693f;
  --reg-kyushu:#c2426b;
  --jm-sea:#eef2fa;
  --jm-line:#ffffff;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){ --jm-sea:#141a2e; --jm-line:#0f1220; }
}
:root[data-theme="dark"]{ --jm-sea:#141a2e; --jm-line:#0f1220; }

/* mode picker */
.mode-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.mode-chip{
  display:inline-flex;align-items:center;gap:8px;padding:9px 15px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);cursor:pointer;
  font-size:13.5px;font-weight:650;color:var(--ink-2);
  transition:border-color .16s, background .16s, transform .14s, color .16s
}
.mode-chip:hover{border-color:var(--ai-300);background:var(--surface-2);transform:translateY(-1px)}
.mode-chip[aria-pressed="true"]{background:var(--ai-600);border-color:var(--ai-600);color:#fff;
  box-shadow:0 3px 12px rgba(51,65,140,.32)}
.mc-ico{font-size:15px;line-height:1}

/* question strip */
.jm-question{background:var(--surface);border:1px solid var(--line-soft);
  border-radius:var(--radius-l);padding:20px 22px;margin-bottom:16px;box-shadow:var(--shadow-2)}
.jmq-top{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.jmq-count{font-size:12.5px;font-weight:800;letter-spacing:.06em;color:var(--ink-3);
  font-variant-numeric:tabular-nums}
.jmq-clock{font-size:14px;font-weight:800;color:var(--beni-600);background:var(--beni-100);
  padding:3px 11px;border-radius:999px;font-variant-numeric:tabular-nums}
.jmq-top .btn{margin-left:auto}
.jmq-prompt{font-size:clamp(17px,2.4vw,21px);font-weight:700;letter-spacing:-.015em;line-height:1.4}
.jmq-prompt .jm-kanji{font-size:1.5em;display:inline-block;vertical-align:-2px}
.jmq-help{font-size:13px;color:var(--ink-3);margin-top:8px}
.jmq-choices{display:grid;gap:9px;margin-top:16px;
  grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}
.jmq-choices .choice{font-size:14.5px;padding:13px 15px}
.jmq-fb{margin-top:16px;border-radius:var(--radius);padding:14px 16px;font-size:14.5px}
.jmq-fb.ok{background:var(--matcha-100);border:1px solid var(--matcha-500)}
.jmq-fb.no{background:var(--beni-100);border:1px solid var(--beni-600)}
.jmq-exp{font-size:13.5px;color:var(--ink-2);margin-top:7px;line-height:1.6}
.jmq-actions{display:flex;gap:9px;margin-top:14px;flex-wrap:wrap}
.jmq-result{text-align:center;padding:8px 0}
.jmq-r-ico{font-size:42px;margin-bottom:6px}

/* the map itself */
.jm-shell{background:var(--jm-sea);border:1px solid var(--line-soft);
  border-radius:var(--radius-xl);padding:18px;box-shadow:var(--shadow-1);margin-bottom:18px;
  position:relative;overflow:hidden}
.jm-shell::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 90% at 78% 12%, rgba(224,90,131,.09), transparent 58%)}
.jm-stage{position:relative;max-width:720px;margin:0 auto;touch-action:none;
  cursor:grab;outline:none}
.jm-stage.zoomed{cursor:grab}
.jm-stage.zoomed:active{cursor:grabbing}
.jm-stage svg{display:block;width:100%;height:auto;overflow:hidden;
  border-radius:var(--radius);--jm-stroke:0.6}
.jm-hint{text-align:center;font-size:12px;color:var(--ink-3);margin-top:12px;position:relative}

.jm-pref{
  fill:var(--ai-300);stroke:var(--jm-line);stroke-width:var(--jm-stroke,.6);cursor:pointer;
  transition:fill .18s ease, transform .18s ease, opacity .18s ease;
  transform-origin:center; transform-box:fill-box
}
#reg-hokkaido .jm-pref{fill:var(--reg-hokkaido)}
#reg-tohoku  .jm-pref{fill:var(--reg-tohoku)}
#reg-kanto   .jm-pref{fill:var(--reg-kanto)}
#reg-chubu   .jm-pref{fill:var(--reg-chubu)}
#reg-kinki    .jm-pref{fill:var(--reg-kinki)}
#reg-chugoku .jm-pref{fill:var(--reg-chugoku)}
#reg-shikoku  .jm-pref{fill:var(--reg-shikoku)}
#reg-kyushu .jm-pref{fill:var(--reg-kyushu)}

.jm-pref:hover{filter:brightness(1.16);stroke-width:calc(var(--jm-stroke,.6) * 2);
  stroke:var(--ai-900)}
.jm-pref:focus-visible{outline:none;stroke:var(--ai-900);stroke-width:1.6;
  filter:drop-shadow(0 0 5px rgba(18,24,58,.55))}
.jm-pref.dim{opacity:.22}
.jm-pref.target{filter:brightness(1.3);stroke:var(--ai-900);stroke-width:1.4;
  animation:jmPulse 1.5s ease-in-out infinite}
.jm-pref.hit{fill:var(--matcha-500) !important;stroke:var(--matcha-600);stroke-width:1.3;
  animation:jmPop .42s cubic-bezier(.2,.8,.25,1)}
.jm-pref.miss{fill:var(--beni-600) !important;animation:jmShake .42s}

@keyframes jmPulse{0%,100%{opacity:1}50%{opacity:.62}}
@keyframes jmPop{0%{transform:scale(1)}45%{transform:scale(1.14)}100%{transform:scale(1)}}
@keyframes jmShake{0%,100%{transform:translateX(0)}25%{transform:translateX(-2.5px)}
  60%{transform:translateX(2px)}}

/* tooltip */
.jm-tip[hidden]{display:none}
.jm-tip{position:absolute;transform:translate(-50%,-100%);pointer-events:none;z-index:5;
  background:var(--ai-900);color:#fff;border-radius:11px;padding:8px 12px;
  box-shadow:var(--shadow-3);white-space:nowrap;display:flex;flex-direction:column;gap:1px}
.jm-tip b{font-size:16px;line-height:1.2}
.jm-tip span{font-size:12.5px;opacity:.85}
.jm-tip small{font-size:10.5px;opacity:.6;letter-spacing:.04em;text-transform:uppercase;
  font-weight:700}

/* region legend */
.jm-legend{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:6px}
.jm-leg{display:inline-flex;align-items:center;gap:7px;padding:7px 12px;border-radius:999px;
  border:1px solid var(--line);background:var(--surface);cursor:pointer;
  font-size:12.5px;font-weight:650;color:var(--ink-2);transition:border-color .15s,background .15s}
.jm-leg:hover{border-color:var(--ai-300);background:var(--surface-2)}
.jm-leg .sw{width:11px;height:11px;border-radius:3px;flex-shrink:0}
.jm-leg .ja{font-size:13px}
.jm-leg small{font-size:10.5px;color:var(--ink-3);background:var(--surface-2);
  border-radius:5px;padding:1px 5px;font-weight:800}

/* prefecture / region cards */
.pc-head{display:flex;align-items:center;gap:14px;margin-bottom:4px}
.pc-emoji{font-size:34px;line-height:1}
.pc-kanji{font-size:32px;font-weight:600;line-height:1.15}
.pc-kana{font-size:14px;color:var(--ink-3);font-weight:500}
.pc-rom{font-size:15px;font-weight:800;letter-spacing:.04em;color:var(--accent);
  margin:6px 0 16px}

.region{border-left:4px solid var(--rc,var(--ai-500))}
.pref{background:var(--surface-2);border:1px solid transparent;border-radius:10px;
  padding:9px 11px;font-size:13px;text-align:left;width:100%;cursor:pointer;
  transition:border-color .15s,background .15s}
.pref:hover{border-color:var(--ai-300);background:var(--surface)}

@media (max-width:640px){
  .jm-shell{padding:12px}
  .mode-row{gap:6px}
  .mode-chip{padding:8px 12px;font-size:12.5px}
  .jm-tip{font-size:12px}
  .jm-tip b{font-size:14px}
}

/* zoom controls */
.jm-zoom{position:absolute;right:10px;bottom:10px;z-index:6;display:flex;flex-direction:column;
  gap:5px;background:color-mix(in srgb,var(--surface) 88%,transparent);
  backdrop-filter:blur(8px);padding:5px;border-radius:12px;border:1px solid var(--line);
  box-shadow:var(--shadow-1)}
.jm-zb{width:32px;height:32px;border:0;border-radius:8px;background:transparent;cursor:pointer;
  font-size:15px;font-weight:700;color:var(--ink-2);display:grid;place-items:center;
  transition:background .14s,color .14s;line-height:1}
.jm-zb:hover{background:var(--surface-2);color:var(--ink)}
.jm-zoomlvl{position:absolute;left:10px;bottom:10px;z-index:6;font-size:11.5px;font-weight:800;
  color:var(--ink-3);background:color-mix(in srgb,var(--surface) 85%,transparent);
  backdrop-filter:blur(8px);border:1px solid var(--line);border-radius:999px;padding:4px 11px;
  font-variant-numeric:tabular-nums}
@media (max-width:640px){
  .jm-zoom{right:6px;bottom:6px}
  .jm-zb{width:36px;height:36px}
  .jm-zoomlvl{left:6px;bottom:6px}
}

/* target pin — keeps tiny prefectures legible at full extent */
.jm-pins{pointer-events:none}
.jm-pin-ring{fill:none;stroke:var(--ai-900);stroke-width:1.1;opacity:.9;
  animation:jmPin 1.8s cubic-bezier(.2,.8,.25,1) infinite}
.jm-pin-ring.ok{stroke:var(--matcha-600)}
.jm-pin-ring.no{stroke:var(--beni-600)}
.jm-pin-dot{fill:var(--ai-900)}
.jm-pin-dot.ok{fill:var(--matcha-600)}
.jm-pin-dot.no{fill:var(--beni-600)}
@keyframes jmPin{
  0%{r:2;opacity:1}
  70%{opacity:.15}
  100%{r:9;opacity:0}
}
@media (prefers-reduced-motion: reduce){
  .jm-pin-ring{animation:none;opacity:.85}
}

/* Okinawa inset frame — mirrors the inset the source Japan map uses */
.jm-inset-frame rect{fill:none;stroke:var(--ink-3);stroke-width:.5;stroke-dasharray:3 2.2;
  opacity:.5}
.jm-inset-frame text{fill:var(--ink-3);font-size:5.4px;font-weight:700;opacity:.85;
  font-family:var(--ff-ja)}

/* grammar point cards */
.g-id{background:var(--accent-soft);color:var(--accent);padding:3px 9px;border-radius:7px;
  font-size:12.5px;font-weight:800;letter-spacing:.02em;margin-right:4px}
.g-tag{background:var(--surface-2);color:var(--ink-3);padding:3px 9px;border-radius:7px;
  font-size:11px;font-weight:700;white-space:nowrap;flex-shrink:0}
.lcard.writing{background:linear-gradient(150deg,var(--surface-2),var(--surface) 70%)}

/* long unbroken romaji runs (dates, compound readings) must never widen the page */
.lcard p, .lcard li, .lcard .note, .lcard .foot-note,
.phrase .p-ja, .phrase .p-en, .phrase .p-note,
.dlg-ja, .dlg-en, .q-prompt, .feedback .exp, .jmq-exp,
table.t td, table.t th, .mrow .m-q{
  overflow-wrap:anywhere; word-break:normal;
}