/* Layout: dark navy masthead with stat chips → sticky tab rail → one 1120px column of white section cards (same skeleton as the Goyang guide) */
:root{
  --bg:#f3f5f8; --card:#ffffff; --sunk:#f6f7fa; --ink:#131a2b; --ink2:#465068; --muted:#7a8296; --line:#e2e6ed;
  --head:#111a2f; --head-ink:#f2f4f8; --head-dim:#9aa5bd; --head-chip:#1b2640; --head-line:#2b3755;
  --accent:#2453d4; --accent-ink:#ffffff; --accent-soft:#e9eefc; --accent-deep:#1a3a96;
  --gold:#a8792a; --gold-soft:#f7efe0;
  --good:#0f7b3f; --good-soft:#e5f4ea; --warn:#9a5b00; --warn-soft:#fdf1dc; --bad:#b4282c; --bad-soft:#fbe7e7;
  --s-u4:#2a78d6; --s-c2:#1baf7a; --s-emp:#eda100; --s-oth:#4b515c;
  --gA:#1c5cab; --gB:#6da7ec; --gC:#d3d1ca; --gD:#f29a5e; --gE:#c43d3d;
  --gAi:#ffffff; --gBi:#0e1a33; --gCi:#2b2a27; --gDi:#3a1a06; --gEi:#ffffff;
  --gauge-bg:#e7eaf0; --gauge:#2453d4; --gauge-hot:#c2410c; --btn-edge:#cfd5e1;
  --cmp-m:#2a78d6; --cmp-e:#eb6834;
  --shadow:0 1px 2px rgba(17,26,47,.06),0 4px 16px rgba(17,26,47,.05);
  --f-body:"Noto Sans KR",system-ui,-apple-system,"Malgun Gothic","Apple SD Gothic Neo",sans-serif;
  --f-data:"IBM Plex Mono",ui-monospace,"Consolas",monospace;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#0d121d; --card:#151b29; --sunk:#111725; --ink:#edf0f6; --ink2:#b5bdce; --muted:#8a92a5; --line:#283044;
  --head:#080c16; --head-ink:#f2f4f8; --head-dim:#8f9ab3; --head-chip:#141c30; --head-line:#25304a;
  --accent:#7da2ff; --accent-ink:#0b1430; --accent-soft:#1a2645; --accent-deep:#a9c0ff;
  --gold:#d9ad5c; --gold-soft:#2b2416;
  --good:#5fd08c; --good-soft:#12291c; --warn:#f0b54a; --warn-soft:#2d2210; --bad:#ff8a8a; --bad-soft:#331617;
  --s-u4:#3987e5; --s-c2:#199e70; --s-emp:#c98500; --s-oth:#c9ced6;
  --gA:#7fb0f0; --gB:#3268c4; --gC:#8a8984; --gD:#e8964f; --gE:#d93b3b;
  --gAi:#0b1430; --gBi:#ffffff; --gCi:#141414; --gDi:#2a1305; --gEi:#ffffff;
  --gauge-bg:#232b3d; --gauge:#7da2ff; --gauge-hot:#fb923c; --btn-edge:#0a0e18;
  --cmp-m:#3987e5; --cmp-e:#d95926;
  --shadow:0 1px 2px rgba(0,0,0,.3); color-scheme:dark;
}}
:root[data-theme="dark"]{
  --bg:#0d121d; --card:#151b29; --sunk:#111725; --ink:#edf0f6; --ink2:#b5bdce; --muted:#8a92a5; --line:#283044;
  --head:#080c16; --head-ink:#f2f4f8; --head-dim:#8f9ab3; --head-chip:#141c30; --head-line:#25304a;
  --accent:#7da2ff; --accent-ink:#0b1430; --accent-soft:#1a2645; --accent-deep:#a9c0ff;
  --gold:#d9ad5c; --gold-soft:#2b2416;
  --good:#5fd08c; --good-soft:#12291c; --warn:#f0b54a; --warn-soft:#2d2210; --bad:#ff8a8a; --bad-soft:#331617;
  --s-u4:#3987e5; --s-c2:#199e70; --s-emp:#c98500; --s-oth:#c9ced6;
  --gA:#7fb0f0; --gB:#3268c4; --gC:#8a8984; --gD:#e8964f; --gE:#d93b3b;
  --gAi:#0b1430; --gBi:#ffffff; --gCi:#141414; --gDi:#2a1305; --gEi:#ffffff;
  --gauge-bg:#232b3d; --gauge:#7da2ff; --gauge-hot:#fb923c; --btn-edge:#0a0e18;
  --cmp-m:#3987e5; --cmp-e:#d95926;
  --shadow:0 1px 2px rgba(0,0,0,.3); color-scheme:dark;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
body{overflow-x:clip;word-break:keep-all;overflow-wrap:anywhere;background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{margin:0;text-wrap:balance;line-height:1.3}
p{margin:0}
button{font:inherit;color:inherit}
a{color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.num{font-family:var(--f-data);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.wrap{max-width:1120px;margin:0 auto;padding-inline:16px}
@media(min-width:720px){.wrap{padding-inline:28px}}

/* masthead */
.mast{position:relative;overflow:hidden;color:#f2f4f8;padding-block:30px 26px;
  background:radial-gradient(900px 480px at 88% -12%,rgba(64,112,255,.55),transparent 62%),radial-gradient(700px 420px at -8% 112%,rgba(124,77,255,.38),transparent 58%),linear-gradient(160deg,#0e1730 0%,#0a1024 100%)}
.mast-bg{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);background-size:34px 34px;-webkit-mask-image:radial-gradient(ellipse 70% 80% at 72% 30%,#000 20%,transparent 75%);mask-image:radial-gradient(ellipse 70% 80% at 72% 30%,#000 20%,transparent 75%)}
.mast .wrap{position:relative}
.hero{display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center}
.mast-copy{min-width:0}
.eyebrow{display:inline-block;font-size:14.5px;font-weight:700;letter-spacing:-.01em;line-height:1.45;color:#1a1306;background:linear-gradient(90deg,#f6d38a,#e2ac4f);border-radius:999px;padding:6px 15px;box-shadow:0 4px 14px rgba(226,172,79,.25)}.eyebrow .x{display:inline-block;margin:0 3px;font-weight:900}
.kicker{margin-top:16px;font-size:14.5px;font-weight:700;color:#a9b8e0;letter-spacing:.01em}
.mast h1{font-size:clamp(29px,4.8vw,48px);font-weight:900;letter-spacing:-.035em;line-height:1.22;margin-top:6px}
.mast h1 em{font-style:normal;background:linear-gradient(90deg,#8fb0ff,#c9a6ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:#c3cbe0;margin-top:14px;font-size:16px;line-height:1.7;max-width:34em}
.cta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.btn-pri,.btn-sec{font:inherit;font-size:16px;font-weight:700;border-radius:12px;padding:13px 20px;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease}
.btn-pri{background:#fff;color:#0e1730;border:0;box-shadow:0 8px 24px rgba(64,112,255,.35)}
.btn-sec{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.28)}
.btn-pri:hover,.btn-sec:hover{transform:translateY(-2px)}
.hero-viz{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:18px;padding:18px 18px 14px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);box-shadow:0 20px 50px rgba(0,0,0,.28);min-width:0}
.hv-head small{display:block;color:#a9b8e0;font-size:13px}
.hv-head b{display:block;font-size:20px;font-weight:900;margin-top:2px}
.hv-head b em{font-style:normal;color:#f6d38a}
.hv-legend{display:flex;flex-wrap:wrap;gap:6px 14px;margin-top:10px;font-size:13px;color:#c3cbe0}
.hv-legend span{white-space:nowrap;display:inline-flex;align-items:center;gap:6px}
.hv-legend i{width:12px;height:12px;border-radius:50%;background:#5b6f9e}
.hv-legend i.me{background:#f6d38a}
.gx{display:grid;gap:14px;margin-top:12px}
.gx-row{display:grid;gap:7px}
.gx-lab{display:flex;justify-content:space-between;align-items:baseline;gap:8px;flex-wrap:wrap;font-size:14px;color:#c3cbe0}
.gx-lab>b{color:#fff;font-size:15px}
.gx-lab em{font-style:normal;color:#f6d38a;font-weight:900;font-size:16px}
.gx-g,.gx-scale{display:grid;grid-template-columns:1fr 2fr 3fr 3fr 1fr;gap:5px}
.gx-g>span{display:flex;justify-content:space-around;align-items:center;min-height:30px;background:rgba(255,255,255,.06);border-radius:8px;padding:0 2px}
.gx-g>span.hit{background:rgba(246,211,138,.16);box-shadow:inset 0 0 0 1.5px rgba(246,211,138,.6)}
.gx-g i{width:15px;height:15px;border-radius:50%;background:#5b6f9e;flex:none}
.gx-g i.me{background:#f6d38a;box-shadow:0 0 0 3px rgba(246,211,138,.3)}
.gx-scale span{text-align:center;font-size:12px;color:#a9b8e0;white-space:nowrap}
.gx-cut{margin-top:4px;font-size:12.5px;color:#a9b8e0;line-height:1.5}
.gx-foot{margin-top:12px;padding-top:10px;border-top:1px solid rgba(255,255,255,.14);font-size:14px;line-height:1.6;color:#e7ebf5}
.gx-foot b{color:#f6d38a}
.chips{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:26px}
.chip{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.13);border-radius:14px;padding:13px 15px;min-width:0}
.chip small{display:block;color:#a9b8e0;font-size:12.5px}
.chip b{display:block;font-size:24px;font-weight:900;margin-top:2px;letter-spacing:-.02em}
.chip span{display:block;color:#c3cbe0;font-size:12.5px;line-height:1.45}

.cola-cta{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;text-decoration:none;color:var(--accent-ink);background:var(--accent);border-radius:14px;padding:16px 18px}
.cola-cta b{display:block;font-size:17px}.cola-cta small{display:block;font-size:14px;opacity:.9;margin-top:2px}
.cola-cta .go{background:var(--accent-ink);color:var(--accent);font-weight:700;border-radius:10px;padding:9px 14px;font-size:15px;white-space:nowrap}
.cola-cta:hover{filter:brightness(1.07)}

/* tabs */
.tabs{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:#0a1024;border-bottom:1px solid rgba(255,255,255,.1);box-shadow:0 6px 18px rgba(10,16,36,.22)}
.tabs .wrap{overflow-x:auto;scrollbar-width:none;padding-block:10px}
.tabs .wrap::-webkit-scrollbar{display:none}
.tabrow{display:flex;gap:8px;min-width:max-content}
.tab{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:8px 16px 8px 8px;font:inherit;font-size:15.5px;font-weight:700;color:#e3e8f5;cursor:pointer;white-space:nowrap;transition:background .15s ease,border-color .15s ease}
.tab .n{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:rgba(255,255,255,.12);font-family:var(--f-data);font-size:11.5px;color:#c3cbe0}
.tab:hover{background:rgba(255,255,255,.13);border-color:rgba(143,176,255,.7)}
.tab[aria-selected="true"]{background:#fff;color:#0e1730;border-color:#fff;box-shadow:0 0 0 3px rgba(143,176,255,.35)}
.tab[aria-selected="true"] .n{background:#3d5fd8;color:#fff}
.tabhint{display:none}
.tab .ts{display:none}
.readgrid{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr))}
.readgrid .rh{display:block;font-size:16.5px;margin-bottom:4px;color:var(--accent-deep)}
.readgrid p{font-size:15px;color:var(--ink2);line-height:1.7}
.avgbar{display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center;background:var(--accent-soft);border-radius:12px;padding:11px 14px;font-size:14.5px}
.avgbar span{color:var(--accent-deep);font-weight:700}
.avgbar b{font-family:var(--f-data);font-weight:600}
.rgrid{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr))}
.rcard{border:1px solid var(--line);border-radius:14px;padding:14px;background:var(--card);display:grid;gap:10px;min-width:0;box-shadow:var(--shadow)}
.rcard .dist{min-width:0}
.rc-top{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.rc-top .rk{font-family:var(--f-data);font-weight:600;width:26px;height:26px;border-radius:7px;display:grid;place-items:center;background:var(--sunk);color:var(--ink2);font-size:13px;flex:none}
.rc-top .linkbtn{font-size:16px}
.rc-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.rc-stats div{background:var(--sunk);border-radius:10px;padding:7px 6px;text-align:center;min-width:0}
.rc-stats small{display:block;font-size:12px;color:var(--muted);line-height:1.35}
.rc-stats b{display:block;font-family:var(--f-data);font-size:16px;font-weight:600;margin:2px 0}
.rc-foot{display:flex;flex-wrap:wrap;gap:6px 10px;align-items:center}
.rc-foot .sub{font-size:13.5px;color:var(--ink2)}

main.wrap{padding-block:28px 40px;display:grid;gap:22px}
.panel{display:grid;gap:22px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--shadow);min-width:0}
@media(min-width:720px){.card{padding:28px}}
.h2{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:900;letter-spacing:-.015em}
.h2::before{content:"";flex:none;width:6px;height:22px;border-radius:3px;background:var(--accent)}
.lead{color:var(--ink2);margin-top:10px;max-width:72ch;font-size:16px}
.h3{font-size:16px;font-weight:700}
.sub{color:var(--muted);font-size:14px}
.stack{display:grid;gap:14px}
.grid2{display:grid;gap:14px;grid-template-columns:1fr}
.grid3{display:grid;gap:14px;grid-template-columns:1fr}
@media(min-width:760px){.grid2{grid-template-columns:1fr 1fr}.grid3{grid-template-columns:repeat(3,1fr)}}
.box{background:var(--sunk);border:1px solid var(--line);border-radius:10px;padding:16px;min-width:0}
.note{border-radius:10px;padding:15px 17px;font-size:15px;min-width:0;line-height:1.7}
.note b{font-weight:700}
.note.info{background:var(--accent-soft);color:var(--ink)}
.note.warn{background:var(--warn-soft);color:var(--ink)}
.note.gold{background:var(--gold-soft);color:var(--ink)}
.note .t{display:block;font-weight:700;margin-bottom:4px}
.note.info .t{color:var(--accent-deep)} .note.warn .t{color:var(--warn)} .note.gold .t{color:var(--gold)}
.pill{display:inline-flex;align-items:center;gap:4px;font-size:13px;font-weight:700;border-radius:999px;padding:3px 10px;white-space:nowrap}
.pill.blue{background:var(--accent-soft);color:var(--accent-deep)}
.pill.gray{background:var(--sunk);color:var(--ink2);border:1px solid var(--line)}
.pill.gold{background:var(--gold-soft);color:var(--gold)}
.pill.good{background:var(--good-soft);color:var(--good)}
.pill.warn{background:var(--warn-soft);color:var(--warn)}
.pill.bad{background:var(--bad-soft);color:var(--bad)}
.seg{display:inline-flex;flex-wrap:wrap;gap:8px;padding:2px 0 4px}
.seg button{position:relative;border:1px solid var(--line);background:var(--card);padding:9px 15px;border-radius:11px;font-size:14.5px;font-weight:700;cursor:pointer;color:var(--ink);box-shadow:0 3px 0 var(--btn-edge),0 4px 10px rgba(17,26,47,.06);transition:transform .08s ease,box-shadow .12s ease,background .15s ease,border-color .15s ease;-webkit-tap-highlight-color:transparent}
.seg button:hover{border-color:var(--accent);color:var(--accent-deep)}
.seg button:active{transform:translateY(3px);box-shadow:0 0 0 var(--btn-edge),0 1px 3px rgba(17,26,47,.08)}
.seg button[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);box-shadow:0 3px 0 var(--accent-deep),0 6px 14px rgba(36,83,212,.28)}
.seg button[aria-pressed="true"]::before{content:"\2713";margin-right:5px;font-weight:900}
.flash{animation:flash 1.3s ease-out}
@keyframes flash{0%{box-shadow:0 0 0 4px var(--accent),var(--shadow)}100%{box-shadow:0 0 0 0 transparent,var(--shadow)}}
.backbtn{display:inline-flex;align-items:center;gap:6px;margin-top:8px;border:1px solid var(--line);background:var(--sunk);color:var(--accent-deep);font-size:14px;font-weight:700;border-radius:999px;padding:6px 13px;cursor:pointer;box-shadow:0 2px 0 var(--btn-edge)}
.backbtn:active{transform:translateY(2px);box-shadow:none}
.controls{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.controls .lbl{font-size:13.5px;color:var(--muted);font-weight:700;margin-right:2px}
.scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;min-width:0}
.scroll > table{border:1px solid var(--line);border-radius:10px;border-collapse:separate;border-spacing:0;overflow:hidden}
table{border-collapse:separate;border-spacing:0;width:100%;font-size:15px}
th{font-size:14px;color:var(--ink2);font-weight:700;text-align:center;padding:10px 12px;background:var(--sunk);border-bottom:1px solid var(--line);border-right:1px solid var(--line);white-space:nowrap}
td{padding:10px 12px;border-bottom:1px solid var(--line);border-right:1px solid var(--line);vertical-align:middle;text-align:center}
th:last-child,td:last-child{border-right:0}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover td{background:var(--sunk)}
td.r,th.r{text-align:center}
td.l,th.l{text-align:left}
td .dist,td .battery{margin-inline:auto}
.src{font-size:13px;color:var(--muted);line-height:1.6}

/* step bars (tab 1) */
.steps{display:grid;gap:12px}
.step{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start}
.step .k{font-family:var(--f-data);font-weight:600;font-size:13px;color:var(--accent-ink);background:var(--accent);border-radius:8px;padding:6px 9px;line-height:1}
.step .bar{height:8px;border-radius:4px;background:var(--gauge-bg);margin-top:8px;overflow:hidden}
.step .bar i{display:block;height:100%;background:var(--accent);border-radius:4px}
.gu-cols{display:grid;gap:12px;grid-template-columns:1fr}
@media(min-width:760px){.gu-cols{grid-template-columns:repeat(3,1fr)}}
.gu-cols .box h4{font-size:14px;margin-bottom:8px;display:flex;justify-content:space-between}
.tags{display:flex;flex-wrap:wrap;gap:6px}

/* school explorer */
.sgrid{display:grid;gap:10px;grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}
.pick-banner{display:flex;gap:16px;align-items:center;background:var(--accent);color:var(--accent-ink);border-radius:14px;padding:18px 20px}
.pick-banner svg{flex:none}
.pick-copy{display:grid;gap:4px;min-width:0}
.pick-copy b{font-size:19px;font-weight:900;letter-spacing:-.01em}
.pick-copy > span{font-size:15px;opacity:.92}
.pick-chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}
.pick-chips span{font-size:13px;font-weight:700;border:1px solid currentColor;border-radius:999px;padding:2px 10px;opacity:.95}
.scard{text-align:left;background:var(--card);border:1.5px solid var(--line);border-radius:12px;padding:14px 15px 12px;cursor:pointer;display:flex;flex-direction:column;gap:8px;min-width:0;box-shadow:var(--shadow);transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}
.scard:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 6px 18px rgba(36,83,212,.16)}
.scard:active{transform:translateY(0) scale(.99)}
.scard[aria-pressed="true"]{border-color:var(--accent);box-shadow:0 0 0 1.5px var(--accent) inset;background:var(--accent-soft)}
.scard .go{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding:9px 12px;border-radius:9px;background:var(--accent-soft);color:var(--accent-deep);font-weight:700;font-size:14.5px}
.scard:hover .go{background:var(--accent);color:var(--accent-ink)}
.scard[aria-pressed="true"] .go{background:var(--accent);color:var(--accent-ink)}
.scard .top{display:flex;justify-content:space-between;align-items:center;gap:6px}
.scard .nm{font-weight:900;font-size:17.5px}
.scard .kv{display:grid;grid-template-columns:1fr auto;gap:3px 8px;font-size:14.5px;color:var(--ink2)}
.scard .kv b{font-family:var(--f-data);font-weight:600;color:var(--ink);text-align:right}
.detail-head{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between}
.detail-head h3{font-size:24px;font-weight:900}
.tiles{display:grid;gap:10px;grid-template-columns:repeat(2,1fr)}
@media(min-width:760px){.tiles{grid-template-columns:repeat(4,1fr)}}
.tile{background:var(--sunk);border:1px solid var(--line);border-radius:10px;padding:12px 14px;min-width:0}
.tile small{display:block;font-size:13.5px;color:var(--muted)}
.tile b{display:block;font-family:var(--f-data);font-size:22px;font-weight:600;margin-top:2px}
.tile span{font-size:13px;color:var(--ink2)}
.up{color:var(--good)} .dn{color:var(--bad)}

/* bars & gauges */
.dist{display:flex;height:24px;border-radius:4px;overflow:hidden;gap:2px;min-width:170px}
.dist i{display:flex;align-items:center;justify-content:center;height:100%;font-style:normal;font-family:var(--f-data);font-size:12px;font-weight:600;overflow:hidden;white-space:nowrap}
.dist i:first-child{border-radius:4px 0 0 4px}.dist i:last-child{border-radius:0 4px 4px 0}
.legend{display:flex;flex-wrap:wrap;gap:8px 14px;font-size:14px;color:var(--ink2)}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend i{width:12px;height:12px;border-radius:3px;display:inline-block}
.battery{display:flex;align-items:center;gap:8px;min-width:150px}
.battery .cell{position:relative;flex:1;height:16px;border:1.5px solid var(--ink2);border-radius:4px;padding:2px;min-width:90px}
.battery .cell::after{content:"";position:absolute;right:-5px;top:4px;width:3px;height:6px;border-radius:0 2px 2px 0;background:var(--ink2)}
.battery .cell i{display:block;height:100%;border-radius:2px;background:var(--gauge)}
.battery .cell i.hot{background:var(--gauge-hot)}
.battery b{font-family:var(--f-data);font-weight:600;font-size:13px;min-width:46px;text-align:right;white-space:nowrap}
.hbar{display:grid;grid-template-columns:72px 1fr 56px;gap:10px;align-items:center;font-size:14.5px;padding:4px 0}
.hbar .nm{font-weight:700;white-space:nowrap}
.hbar .track{display:flex;height:18px;gap:2px;min-width:0}
.hbar .track i{display:block;height:100%}
.hbar .track i:first-child{border-radius:4px 0 0 4px}
.hbar .track i:last-child{border-radius:0 4px 4px 0}
.hbar .v{font-family:var(--f-data);font-weight:600;text-align:right}
.hbar.region{background:var(--sunk);border-radius:8px;padding:6px 6px;margin-bottom:4px}

/* donuts */
.donuts{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));align-items:start}
.dfig{margin:0;display:grid;justify-items:center;gap:8px;background:var(--sunk);border:1px solid var(--line);border-radius:12px;padding:14px 10px;min-width:0}
.dfig.big{background:var(--accent-soft);border-color:transparent}
.dfig figcaption{font-weight:700;font-size:14px}
.donut{display:block;max-width:100%;height:auto}
.donut circle{cursor:default}
.d-big{fill:var(--ink);font-family:var(--f-data);font-weight:600}
.d-small{fill:var(--muted);font-size:12.5px;font-family:var(--f-body)}
.dvals{list-style:none;margin:0;padding:0;display:grid;gap:3px;font-size:14px;color:var(--ink2);width:100%;max-width:150px}
.dvals li{display:grid;grid-template-columns:10px 1fr auto;gap:6px;align-items:center}
.dvals i{width:10px;height:10px;border-radius:3px}
.dvals b{font-weight:600;color:var(--ink)}
.dgrid{display:grid;gap:10px;grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
.dcard{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:12px 10px 10px;display:grid;justify-items:center;gap:6px;cursor:pointer;text-align:center;min-width:0;box-shadow:0 3px 0 var(--btn-edge),0 4px 12px rgba(17,26,47,.06);transition:transform .08s ease,box-shadow .12s ease,border-color .15s ease}
.dcard::after{content:"\c0c1\c138  \bcf4\ae30  \203a";display:block;width:100%;margin-top:2px;padding:6px 0;border-radius:9px;background:var(--accent-soft);color:var(--accent-deep);font-size:13.5px;font-weight:700}
.dcard:hover{border-color:var(--accent)}
.dcard:active{transform:translateY(3px);box-shadow:0 0 0 var(--btn-edge)}
.dcard .nm{font-weight:900;font-size:16.5px}
.dcard .meta{font-size:13.5px;color:var(--ink2)}
.dcard .meta b{font-family:var(--f-data);font-weight:600;color:var(--ink)}
.region-donut{display:grid;gap:16px;grid-template-columns:1fr;align-items:center}
@media(min-width:760px){.region-donut{grid-template-columns:auto 1fr}}

/* math vs english compare */
.cmp-row{display:grid;grid-template-columns:84px 1fr 104px;gap:12px;align-items:center;padding:8px 0;border-bottom:1px solid var(--line)}
.cmp-row:last-child{border-bottom:0}
.cmp-row .nm{font-weight:700;font-size:15px;display:grid;gap:3px}
.cmp-row .nm .pill{font-size:11.5px;padding:1px 7px;justify-self:start}
.cmp-bars{display:grid;gap:5px;min-width:0}
.cmp-track{position:relative;height:13px;background:var(--sunk);border-radius:3px}
.cmp-track .z{position:absolute;left:50%;top:-3px;bottom:-3px;width:2px;margin-left:-1px;background:var(--muted)}
.cmp-track .b{position:absolute;top:0;bottom:0;border-radius:3px}
.cmp-track .b.m{background:var(--cmp-m)} .cmp-track .b.e{background:var(--cmp-e)}
.cmp-v{font-family:var(--f-data);font-size:13.5px;text-align:right;line-height:1.5;white-space:nowrap}
.cmp-axis{display:grid;grid-template-columns:84px 1fr 104px;gap:12px;font-size:12.5px;color:var(--muted)}
.cmp-axis div{display:flex;justify-content:space-between}
@media(max-width:640px){.cmp-row,.cmp-axis{grid-template-columns:64px 1fr 82px;gap:8px}.cmp-v{font-size:12.5px}}

/* quadrant */
.quad{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr))}

.qbox{border:1px solid var(--line);border-radius:12px;padding:14px 16px;background:var(--sunk);min-width:0}
.qbox h4{font-size:16.5px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.qbox p{font-size:15px;color:var(--ink2);margin-top:6px;line-height:1.7}
.qbox .tags{margin-top:10px}
.stag{font-size:14px;border:1px solid var(--line);background:var(--card);border-radius:8px;padding:3px 8px;white-space:nowrap}
.stag em{font-style:normal;font-family:var(--f-data);color:var(--muted);font-size:12.5px;margin-left:5px}
.axis-note{display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}

/* tooltip */
#tip{position:fixed;z-index:50;pointer-events:none;background:var(--ink);color:var(--card);font-size:14px;line-height:1.5;border-radius:8px;padding:8px 10px;max-width:260px;box-shadow:0 6px 20px rgba(0,0,0,.2)}
[data-tip]{cursor:default}

/* quiz */
.q{display:grid;gap:8px}
.q .qt{font-weight:700;font-size:17px}
.q .qt .num{color:var(--accent);margin-right:6px}
.opts{display:flex;flex-wrap:wrap;gap:8px}
.opt{border:1px solid var(--line);background:var(--card);border-radius:12px;padding:12px 15px;cursor:pointer;font-size:15.5px;font-weight:600;text-align:left;box-shadow:0 3px 0 var(--btn-edge),0 4px 10px rgba(17,26,47,.05);transition:transform .08s ease,box-shadow .12s ease,border-color .15s ease}
.opt:hover{border-color:var(--accent)}
.opt:active{transform:translateY(3px);box-shadow:0 0 0 var(--btn-edge)}
.opt[aria-pressed="true"]{border-color:var(--accent);background:var(--accent);color:var(--accent-ink);font-weight:700;box-shadow:0 3px 0 var(--accent-deep),0 6px 14px rgba(36,83,212,.25)}
.opt[aria-pressed="true"]::before{content:"\2713";margin-right:7px;font-weight:900}
.rec{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:start;border:1px solid var(--line);border-radius:12px;padding:14px;background:var(--card)}
.rec .rk{font-family:var(--f-data);font-weight:600;font-size:15px;width:30px;height:30px;border-radius:8px;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent-deep)}
.rec .nm{font-weight:900;font-size:16px}
.rec ul{margin:6px 0 0;padding-left:18px;font-size:15px;color:var(--ink2);line-height:1.65}
.rec .fit{font-family:var(--f-data);font-weight:600;color:var(--accent);font-size:13px;white-space:nowrap}
.linkbtn{display:inline-flex;align-items:center;gap:3px;background:var(--accent-soft);border:1px solid transparent;color:var(--accent-deep);font-size:15px;font-weight:700;cursor:pointer;padding:4px 10px;border-radius:9px;text-decoration:none!important;box-shadow:0 2px 0 var(--btn-edge);transition:transform .08s ease,box-shadow .12s ease,border-color .15s ease}
.linkbtn::after{content:"\203a";font-weight:900;margin-left:2px}
.linkbtn:hover{border-color:var(--accent)}
.linkbtn:active{transform:translateY(2px);box-shadow:none}
summary.linkbtn{list-style:none}summary.linkbtn::-webkit-details-marker{display:none}

/* checklist */
.prog{height:10px;border-radius:5px;background:var(--gauge-bg);overflow:hidden}
.prog i{display:block;height:100%;background:var(--good);border-radius:5px;transition:width .3s}
.chk{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:start;border:1px solid var(--line);border-radius:12px;padding:14px 16px;cursor:pointer;background:var(--card)}
.chk input{width:20px;height:20px;margin-top:2px;accent-color:var(--good)}
.chk.done{background:var(--good-soft);border-color:transparent}
.chk b{display:block}
.chk b{font-size:16.5px}.chk span{font-size:15px;color:var(--ink2);line-height:1.65}

footer{border-top:1px solid var(--line);background:var(--card)}
footer .wrap{padding-block:22px 30px;display:grid;gap:8px;font-size:13.5px;color:var(--muted)}
footer .brand{font-weight:900;color:var(--ink);font-size:15px}
/* mobile cards */
.only-narrow{display:none}
.mlist{gap:10px}
.mcard{border:1px solid var(--line);border-radius:12px;padding:14px;background:var(--card);display:grid;gap:10px;min-width:0}
.mcard .row{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap}
.mcard .nm{font-weight:900;font-size:17px}
.mcard .stats{display:flex;flex-wrap:wrap;gap:6px 18px;font-size:14.5px;color:var(--ink2)}
.mcard .stats b{font-family:var(--f-data);font-weight:600;color:var(--ink)}
.mcard .dist,.mcard .battery{min-width:0}
.mterm{display:grid;grid-template-columns:7.2em 3.4em 1fr;gap:8px;align-items:center;font-size:14px}
.mterm .num{font-weight:600}
@media(max-width:640px){
  .only-wide{display:none!important}
  .only-narrow{display:grid}
  main.wrap{padding-block:18px 32px;gap:16px}
  .panel{gap:16px}
  .card{padding:18px 16px;border-radius:12px}
  .h2{font-size:19.5px}
  .mast{padding-block:24px 22px}
  .hero{grid-template-columns:1fr;gap:20px}
  .mast h1{font-size:29px}
  .eyebrow{font-size:12.5px;padding:5px 12px}
  .hero-lead{font-size:15px}
  .cta{display:grid;grid-template-columns:1fr}
  .btn-pri,.btn-sec{width:100%;text-align:center}
  .chips{grid-template-columns:repeat(2,1fr);gap:8px;margin-top:20px}
  .chip{padding:11px 12px}
  .chip b{font-size:20px}
  .tabs .wrap{overflow:visible;padding-block:8px}
  .tabrow{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;min-width:0}
  .tab{justify-content:center;padding:9px 2px;font-size:13.5px;border-radius:10px;gap:0;text-align:center}
  .tab .n,.tab .tl{display:none}
  .tab .ts{display:inline}
  .controls{display:grid;gap:6px}
  .controls .lbl{margin-top:4px}
  .dist{min-width:0}
  .mterm{grid-template-columns:1fr auto}
  .mterm .dist{grid-column:1 / -1}
  .scroll > table.rtable{border:0;border-radius:0;overflow:visible}
  table.rtable thead{display:none}
  table.rtable,table.rtable tbody,table.rtable tr,table.rtable td{display:block;width:100%}
  table.rtable tr{border:1px solid var(--line);border-radius:12px;padding:6px 12px;margin-bottom:8px;background:var(--card)}
  table.rtable td{display:flex;justify-content:space-between;align-items:center;gap:12px;border:0;padding:6px 0;text-align:right}
  table.rtable td + td{border-top:1px dashed var(--line)}
  table.rtable td::before{content:attr(data-label);color:var(--muted);font-size:13.5px;font-weight:700;text-align:left;flex:none}
  table.rtable td:not([data-label])::before,table.rtable td[data-label=""]::before{content:none}
  table.rtable tbody tr:hover td{background:none}
  td,th{padding:9px 8px}
  .opts{flex-direction:column}
  .opt{width:100%}
  .seg{width:100%}
  .seg button{flex:1 1 auto}
  .tile b{font-size:20px}
  .detail-head h3{font-size:22px}
  .hbar{grid-template-columns:88px 1fr 58px}
  .pick-banner{padding:16px;gap:12px;align-items:flex-start}
  .pick-banner svg{width:32px;height:32px}
  .pick-copy b{font-size:17.5px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}