/* Atlas shell: header, search, home page. Subject pages keep their own article styles. */
:root{
  --a-bg:#0A1013; --a-card:#111A1F; --a-ink:#EEF4F3; --a-mute:#8FA3A6; --a-line:#1E2C32;
  --a-brand:#2DD4BF; --a-brand-ink:#04201C; --a-yellow:#FFB547; --a-mint:#2DD4BF;
  --a-lang:#FF8A7A; --a-nat:#5EB1FF; --a-prac:#C4F061;
  --a-glass:rgba(10,16,19,.78); --a-shadow:0 1px 2px rgba(0,0,0,.4),0 16px 40px -20px rgba(0,0,0,.7);
  --a-grad:linear-gradient(95deg,#2DD4BF,#FFB547);
  --a-ui:'Onest',system-ui,-apple-system,'Segoe UI',sans-serif;
  --a-mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --a-serif:'Plus Jakarta Sans',system-ui,sans-serif;
  color-scheme:dark;
}
:root[data-theme="light"]{
  --a-bg:#F4F3EC; --a-card:#FFFFFF; --a-ink:#10201F; --a-mute:#5C6E6D; --a-line:#E0DED2;
  --a-brand:#0E8F80; --a-brand-ink:#fff; --a-yellow:#A85F00; --a-lang:#D4503F; --a-nat:#1F6FD1; --a-prac:#4C8A0E;
  --a-glass:rgba(244,243,236,.82); --a-shadow:0 1px 2px rgba(20,21,26,.05),0 16px 40px -22px rgba(20,21,26,.25);
  color-scheme:light}

html{scroll-padding-top:84px}
.atlas-spacer{height:60px}
[data-g=lang]{--gc:var(--a-lang)} [data-g=nat]{--gc:var(--a-nat)} [data-g=prac]{--gc:var(--a-prac)}

/* ---------- header ---------- */
.a-head{position:fixed;inset:0 0 auto;z-index:100;height:60px;display:flex;align-items:center;gap:10px;
  padding:0 max(14px,env(safe-area-inset-right,0px)) 0 max(14px,env(safe-area-inset-left,0px));
  background:var(--a-glass);backdrop-filter:saturate(1.6) blur(14px);-webkit-backdrop-filter:saturate(1.6) blur(14px);
  border-bottom:1px solid var(--a-line);font:600 14px/1 var(--a-ui);color:var(--a-ink)}
.a-head *{box-sizing:border-box}
.a-logo{display:flex;align-items:center;gap:9px;color:var(--a-ink);text-decoration:none;font-weight:800;font-size:18px;letter-spacing:-.02em}
.a-logo svg{color:var(--a-brand)}
.a-cur{color:var(--a-mute);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.a-cur::before{content:"/";margin-right:10px;color:var(--a-line)}
.a-sp{flex:1}
.a-btn{display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 12px;border-radius:10px;border:1px solid var(--a-line);
  background:var(--a-card);color:var(--a-ink);font:inherit;cursor:pointer;text-decoration:none;white-space:nowrap}
.a-btn:hover{border-color:var(--a-brand)}
.a-btn:focus-visible,.hero-search:focus-visible,.btn:focus-visible,.card a:focus-visible{outline:2px solid var(--a-brand);outline-offset:2px}
.a-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.a-btn kbd,.hero-search kbd{font:600 11px var(--a-ui);padding:2px 6px;border-radius:6px;border:1px solid var(--a-line);color:var(--a-mute);background:var(--a-bg)}
.a-prog{position:absolute;left:0;bottom:-1px;height:2px;width:0;background:linear-gradient(90deg,var(--a-brand),var(--a-yellow))}
@media(max-width:720px){.a-cur,.a-btn .lbl,.a-btn kbd{display:none}.a-btn{padding:0 11px}}

/* ---------- overlay: subjects drawer + search ---------- */
.a-ov{position:fixed;inset:0;z-index:200;background:rgba(10,12,16,.5);backdrop-filter:blur(3px);display:none;font-family:var(--a-ui);color:var(--a-ink)}
.a-ov.on{display:block}
.a-ov *{box-sizing:border-box}
.a-panel{background:var(--a-card);border:1px solid var(--a-line);box-shadow:0 30px 80px -20px rgba(0,0,0,.5)}
.a-search{max-width:680px;margin:10vh auto 0;border-radius:18px;overflow:hidden;width:calc(100% - 24px)}
.a-search form{display:flex;align-items:center;gap:10px;padding:0 16px;border-bottom:1px solid var(--a-line)}
.a-search form svg{width:20px;height:20px;fill:none;stroke:var(--a-mute);stroke-width:2;stroke-linecap:round;flex:none}
.a-search input{flex:1;border:0;outline:0;background:transparent;color:inherit;font:500 17px var(--a-ui);padding:18px 0;min-width:0}
.a-res{max-height:min(60vh,520px);overflow:auto;padding:8px}
.a-res a{display:block;padding:10px 12px;border-radius:10px;color:inherit;text-decoration:none}
.a-res a.sel,.a-res a:hover{background:color-mix(in srgb,var(--a-brand) 12%,transparent)}
.a-res .r-h{font-weight:700;font-size:15px}
.a-res .r-s{font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--gc,var(--a-brand));margin-bottom:2px}
.a-res .r-t{font-size:13.5px;line-height:1.5;color:var(--a-mute);margin-top:2px}
.a-res mark{background:color-mix(in srgb,var(--a-yellow) 55%,transparent);color:inherit;border-radius:3px;padding:0 1px}
.a-res .none,.a-res .hint{padding:22px 14px;color:var(--a-mute);font-size:14px}
.a-menu-ov{background:color-mix(in srgb,var(--a-bg) 88%,transparent);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);overflow:auto}
.a-menu-in{min-height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:84px 20px 48px;gap:26px}
.a-menu-x{position:fixed;top:12px;right:max(14px,env(safe-area-inset-right,0px));z-index:2}
.a-menu-search{display:flex;align-items:center;gap:10px;width:min(560px,100%);height:54px;padding:0 18px;border-radius:14px;border:1px solid var(--a-line);background:var(--a-card);color:var(--a-mute);font:500 15px var(--a-ui);cursor:pointer;text-align:left}
.a-menu-search:hover{border-color:var(--a-brand)}
.a-menu-search svg{width:20px;height:20px;fill:none;stroke:var(--a-brand);stroke-width:2.2;stroke-linecap:round}
.a-menu-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:30px 44px;width:min(1040px,100%)}
.a-menu-grid h4{margin:0 0 10px;font:800 12px var(--a-ui);letter-spacing:.08em;text-transform:uppercase;color:var(--gc);display:flex;align-items:center;gap:8px}
.a-menu-grid h4::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--gc);transform:rotate(45deg)}
.a-menu-grid a{display:block;padding:7px 0;color:var(--a-ink);text-decoration:none;font-weight:700;font-size:clamp(1.05rem,2.2vw,1.3rem);letter-spacing:-.02em;line-height:1.3;transition:color .15s,transform .15s}
.a-menu-grid a:hover,.a-menu-grid a.cur{color:var(--gc);transform:translateX(4px)}
.a-menu-home{color:var(--a-mute);font-weight:600;font-size:14px;text-decoration:none}
.a-menu-home:hover{color:var(--a-brand)}

/* ---------- prev/next + back to top on subject pages ---------- */
.atlas-pager{max-width:980px;margin:36px auto 56px;padding:0 max(16px,env(safe-area-inset-left,0px));display:grid;grid-template-columns:1fr 1fr;gap:12px;font-family:var(--a-ui)}
.pg-card{display:flex;flex-direction:column;gap:4px;padding:16px 18px;border-radius:14px;background:var(--a-card);border:1px solid var(--a-line);text-decoration:none;color:var(--a-ink);box-shadow:var(--a-shadow);transition:transform .15s,border-color .15s}
.pg-card:last-child{text-align:right}
.pg-card:hover{transform:translateY(-2px);border-color:var(--gc)}
.pg-l{font-size:12px;font-weight:700;color:var(--gc);letter-spacing:.03em}
.pg-n{font-weight:800;font-size:16px;line-height:1.3}
@media(max-width:560px){.atlas-pager{grid-template-columns:1fr}}
.a-top{position:fixed;right:16px;bottom:16px;z-index:90;width:44px;height:44px;border-radius:50%;display:none;align-items:center;justify-content:center;padding:0;box-shadow:var(--a-shadow)}
.a-top.on{display:flex}

/* ---------- home ---------- */
body.home{margin:0;background:var(--a-bg);color:var(--a-ink);font:16px/1.6 var(--a-ui);-webkit-font-smoothing:antialiased}
body.home *{box-sizing:border-box}
.hero{position:relative;overflow:hidden;padding:clamp(48px,9vw,110px) 16px clamp(40px,6vw,70px)}
.hero-bg{position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(900px 420px at 85% -10%,color-mix(in srgb,var(--a-brand) 22%,transparent),transparent 70%),
             radial-gradient(600px 360px at 0% 100%,color-mix(in srgb,var(--a-yellow) 20%,transparent),transparent 70%)}
.hero-bg::after{content:"";position:absolute;inset:0;opacity:.5;
  background-image:radial-gradient(color-mix(in srgb,var(--a-ink) 14%,transparent) 1px,transparent 1.2px);background-size:22px 22px;
  -webkit-mask-image:linear-gradient(180deg,#000,transparent 85%);mask-image:linear-gradient(180deg,#000,transparent 85%)}
.hero-in{position:relative;max-width:900px;margin:0 auto}
.pill{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:99px;border:1px solid var(--a-line);background:var(--a-card);font-size:13px;font-weight:700}
.pill i{width:8px;height:8px;border-radius:50%;background:var(--a-yellow);box-shadow:0 0 0 3px color-mix(in srgb,var(--a-yellow) 30%,transparent)}
.hero h1{font-size:clamp(2.1rem,6.4vw,4.1rem);line-height:1.06;letter-spacing:-.035em;font-weight:800;margin:20px 0 16px;text-wrap:balance}
.hero h1 em{font:italic 500 1em/1 var(--a-serif);color:var(--a-brand);letter-spacing:-.02em}
.lead{max-width:60ch;font-size:clamp(1rem,2.2vw,1.2rem);color:var(--a-mute);margin:0 0 28px}
.hero-search{display:flex;align-items:center;gap:12px;width:100%;max-width:640px;height:60px;padding:0 18px;border-radius:16px;border:1px solid var(--a-line);
  background:var(--a-card);color:var(--a-mute);font:500 15.5px var(--a-ui);cursor:pointer;text-align:left;box-shadow:var(--a-shadow);transition:border-color .15s,transform .15s}
.hero-search:hover{border-color:var(--a-brand);transform:translateY(-1px)}
.hero-search svg{width:22px;height:22px;fill:none;stroke:var(--a-brand);stroke-width:2.2;stroke-linecap:round;flex:none}
.hero-search span{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.btn{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 18px;border-radius:12px;border:1px solid transparent;background:var(--a-brand);color:var(--a-brand-ink);
  font:700 14px var(--a-ui);text-decoration:none;cursor:pointer}
.btn[hidden]{display:none}
.btn.ghost{background:var(--a-card);color:var(--a-ink);border-color:var(--a-line)}
.btn.ghost:hover{border-color:var(--a-brand)}
.stats{list-style:none;display:flex;flex-wrap:wrap;gap:12px 36px;padding:0;margin:34px 0 0}
.stats b{display:block;font-size:1.7rem;font-weight:800;letter-spacing:-.03em;line-height:1.1}
.stats span{font-size:13px;color:var(--a-mute);font-weight:600}
.wrap{max-width:1480px;margin:0 auto;padding:8px max(16px,env(safe-area-inset-left,0px)) 64px}
.group{margin-top:44px}
.group-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding-bottom:12px;margin-bottom:18px;border-bottom:2px solid var(--gc)}
.group-head h2{margin:0;font-size:clamp(1.25rem,3vw,1.6rem);letter-spacing:-.02em;font-weight:800}
.group-head span{font-size:13px;color:var(--a-mute);font-weight:600}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,340px),1fr));gap:18px}
.card{position:relative;display:flex;flex-direction:column;gap:10px;padding:20px;border-radius:18px;background:var(--a-card);border:1px solid var(--a-line);
  box-shadow:var(--a-shadow);transition:transform .18s,border-color .18s,box-shadow .18s;min-width:0}
.card:hover{transform:translateY(-3px);border-color:var(--gc)}
.card:hover .ico{background:var(--gc);color:var(--a-card)}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.ico{display:grid;place-items:center;width:52px;height:52px;border-radius:15px;color:var(--gc);background:color-mix(in srgb,var(--gc) 13%,transparent);transition:.18s}
.ico svg{width:30px;height:30px;fill:none;stroke:currentColor;stroke-width:2.3;stroke-linecap:round;stroke-linejoin:round}
.card-meta{font-size:12px;color:var(--a-mute);font-weight:600;text-align:right}
.card h3{margin:4px 0 0;font-size:1.2rem;letter-spacing:-.015em;line-height:1.25;font-weight:800}
.card h3 a{color:inherit;text-decoration:none}
.card h3 a.stretch::after{content:"";position:absolute;inset:0;border-radius:18px}
.card p{margin:0;font-size:14.5px;color:var(--a-mute)}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:6px;position:relative;z-index:1}
.chip{font-size:12.5px;font-weight:600;padding:4px 11px;border-radius:99px;border:1px solid var(--a-line);color:var(--a-ink);text-decoration:none;background:var(--a-bg)}
.chip:hover,.chip:focus-visible{border-color:var(--gc);color:var(--gc)}
.chip-more{color:var(--a-mute)}
.foot-note{margin:56px 0 0;text-align:center;font-size:13px;color:var(--a-mute)}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* home polish: soft glow ring on cards, gradient headline word */
.card::before{content:"";position:absolute;inset:0;border-radius:18px;opacity:0;transition:opacity .2s;pointer-events:none;
  background:radial-gradient(420px 160px at 100% 0,color-mix(in srgb,var(--gc) 14%,transparent),transparent 70%)}
.card:hover::before{opacity:1}
.hero h1 em{background:linear-gradient(100deg,var(--a-brand),var(--a-lang));-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- Atlas identity: map / contour theme ---------- */
.a-logo{display:inline-flex;align-items:center;gap:9px;font-weight:700;font-size:19px;letter-spacing:-.02em}
.a-logo svg{color:var(--a-brand)}
.a-btn{border-radius:12px;width:40px;height:40px;padding:0;justify-content:center}
.a-btn .lbl,.a-btn kbd{display:none}
@media(min-width:721px){#a-find{width:auto;padding:0 14px}#a-find .lbl,#a-find kbd{display:inline}}
.a-menu{display:inline-flex;align-items:center;height:40px;padding:0 16px;border-radius:12px;border:1px solid var(--a-brand);background:transparent;color:var(--a-brand);font:700 14px var(--a-ui);cursor:pointer}
.a-menu:hover{background:color-mix(in srgb,var(--a-brand) 14%,transparent)}
.a-menu:focus-visible{outline:2px solid var(--a-brand);outline-offset:2px}
.a-cur{display:none}@media(min-width:900px){.a-cur{display:block}}
.a-prog{background:var(--a-grad)}

.hero{text-align:center;padding:clamp(64px,10vw,130px) 24px clamp(48px,7vw,80px)}
.hero-in{max-width:980px;margin:0 auto}
.hero-in>*{margin-left:auto;margin-right:auto}
.pill{display:inline-flex;align-items:center;gap:8px;font:700 12.5px var(--a-ui);letter-spacing:.04em;color:var(--a-yellow);padding:7px 14px;border-radius:99px;background:color-mix(in srgb,var(--a-yellow) 12%,transparent);border:1px solid color-mix(in srgb,var(--a-yellow) 30%,transparent)}
.hero h1{font-weight:800;font-size:clamp(2.2rem,6.2vw,4.3rem);line-height:1.06;letter-spacing:-.035em;margin:22px auto 20px;text-wrap:balance}
.hero h1 em{font:inherit;color:var(--a-brand);background:none;-webkit-text-fill-color:currentColor;
  background-image:linear-gradient(var(--a-yellow),var(--a-yellow));background-repeat:no-repeat;background-size:100% 6px;background-position:0 96%;-webkit-background-clip:padding-box;background-clip:padding-box;padding-bottom:2px}
.lead{margin-left:auto;margin-right:auto}
.hero-bg{background:radial-gradient(800px 380px at 50% 0,color-mix(in srgb,var(--a-brand) 16%,transparent),transparent 70%)}
.hero-bg::after{display:none}
.knot{position:absolute;inset:0;pointer-events:none;
  -webkit-mask-image:radial-gradient(ellipse 70% 80% at 50% 45%,#000 20%,transparent 78%);mask-image:radial-gradient(ellipse 70% 80% at 50% 45%,#000 20%,transparent 78%)}
.knot svg{width:100%;height:100%;fill:none;stroke:var(--a-brand);stroke-opacity:.22;stroke-width:1}
.knot svg .hi{stroke-opacity:.5;stroke:var(--a-yellow)}
.hero-search{border-radius:16px;height:60px;max-width:620px;margin:0 auto;background:color-mix(in srgb,var(--a-card) 90%,transparent)}
.hero-actions{justify-content:center}
.btn{border-radius:12px;height:46px;background:var(--a-brand);color:var(--a-brand-ink);box-shadow:none}
.btn.ghost{background:transparent;color:var(--a-ink);border-color:var(--a-line)}
.stats{justify-content:center;gap:0;margin-top:44px;border:1px solid var(--a-line);border-radius:18px;background:color-mix(in srgb,var(--a-card) 80%,transparent);overflow:hidden;max-width:620px;margin-left:auto;margin-right:auto}
.stats li{flex:1 1 25%;padding:16px 8px;text-align:center;border-right:1px solid var(--a-line)}
.stats li:last-child{border-right:0}
.stats b{font-size:1.5rem;font-weight:800;color:var(--a-ink);background:none;-webkit-text-fill-color:currentColor}
.stats span{font:600 12px var(--a-ui);letter-spacing:0;text-transform:none}

.group-head{border-bottom:0;padding-bottom:0;margin-bottom:16px}
.group-head::after{display:none}
.group-head h2{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:-.025em}
.group-head h2::before{content:"";width:10px;height:10px;border-radius:3px;background:var(--gc);transform:rotate(45deg)}
.grid{counter-reset:c}
.card{border-radius:20px;background:var(--a-card);overflow:hidden;counter-increment:c}
.card::after{content:"0" counter(c);position:absolute;right:18px;bottom:10px;font:800 56px/1 var(--a-ui);color:var(--gc);opacity:.07;pointer-events:none}
.card::before{border-radius:20px;background:linear-gradient(180deg,color-mix(in srgb,var(--gc) 12%,transparent),transparent 55%)}
.card h3 a.stretch::after{border-radius:20px}
.ico{border-radius:14px}
.chip{border-radius:8px}


/* ---------- footer (same as the portfolio) ---------- */
.a-foot{max-width:1560px;margin:8px auto 0;padding:18px max(20px,env(safe-area-inset-left,0px)) 32px;display:flex;justify-content:space-between;gap:16px;
  border-top:1px solid var(--a-line);font:400 12px var(--a-mono);color:var(--a-mute);letter-spacing:.04em}
.a-foot b{font-weight:400;color:var(--a-ink)}
body.home .a-foot{margin-top:24px}
.resume{display:inline-flex;align-items:center;border-radius:12px;background:var(--a-brand);color:var(--a-brand-ink)}
.resume[hidden]{display:none}
.resume .btn{background:transparent;color:inherit;padding-right:10px}
.resume button{border:0;background:transparent;color:inherit;font:600 22px/1 var(--a-ui);width:36px;height:46px;cursor:pointer;opacity:.7;border-radius:0 12px 12px 0}
.resume button:hover{opacity:1;background:rgba(0,0,0,.12)}

/* ========== unified subject pages ========== */
html:root:root:root{
  --bg:var(--a-bg); --fg:var(--a-ink); --ink:var(--a-ink); --muted:var(--a-mute); --line:var(--a-line); --line2:var(--a-line);
  --surface:var(--a-card); --paper:var(--a-card); --page:var(--a-card); --card:var(--a-card);
  --soft:color-mix(in srgb,var(--a-ink) 5%,var(--a-card)); --accent-soft:color-mix(in srgb,var(--a-ink) 5%,var(--a-card));
  --box:color-mix(in srgb,var(--a-ink) 4%,var(--a-card)); --fig:color-mix(in srgb,var(--a-ink) 4%,var(--a-card));
  --accent:var(--a-brand); --link:var(--a-brand); --hl:color-mix(in srgb,var(--a-yellow) 28%,transparent); --accent-ink:var(--a-brand-ink);
  --body:var(--a-ui); --display:var(--a-ui); --head:var(--a-ui); --sans:var(--a-ui); --serif:var(--a-ui);
  --font-text:var(--a-ui); --font-ui:var(--a-ui); --font-b:var(--a-ui); --font-s:var(--a-ui);
  --f-body:var(--a-ui); --f-head:var(--a-ui); --f-display:var(--a-ui); --f-sans:var(--a-ui); --f-serif:var(--a-ui); --ui:var(--a-ui);
  --mono:var(--a-mono); --f-mono:var(--a-mono);
}
body[data-subject]{margin:0;padding:0;background:var(--a-bg);color:var(--a-ink);font:400 16.5px/1.72 var(--a-ui);-webkit-font-smoothing:antialiased;
  background-image:radial-gradient(900px 360px at 50% -100px,color-mix(in srgb,var(--a-brand) 13%,transparent),transparent 70%);background-repeat:no-repeat}
body[data-subject] *{box-sizing:border-box}
.a-layout{max-width:1560px;margin:0 auto;padding:16px max(14px,env(safe-area-inset-left,0px)) 0}
@media(min-width:1200px){.a-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:32px;align-items:start}}
.a-rail{display:none}
@media(min-width:1200px){.a-rail{display:block;align-self:stretch}}
.a-rail-in{position:sticky;top:84px;max-height:calc(100vh - 104px);overflow:auto;padding:6px 0}
.a-rail-in b{display:block;font:800 11px var(--a-ui);letter-spacing:.1em;text-transform:uppercase;color:var(--a-mute);margin:0 0 10px 14px}
.a-rail a{display:block;padding:7px 12px 7px 14px;border-left:2px solid var(--a-line);color:var(--a-mute);text-decoration:none;font-size:13.5px;font-weight:600;line-height:1.35;transition:color .15s,border-color .15s}
.a-rail a:hover{color:var(--a-ink)}
.a-rail a.on{border-color:var(--a-brand);color:var(--a-brand)}
.atlas-doc{min-width:0;max-width:1180px;width:100%;margin:0 auto}
.atlas-doc>:is(.wrap,.page,.paper,main,article){max-width:none!important;margin:0!important;padding:clamp(20px,4.5vw,56px)!important;border-radius:28px;
  background:var(--a-card)!important;border:1px solid var(--a-line)!important;box-shadow:var(--a-shadow);overflow:hidden}
@media(max-width:560px){.atlas-doc>:is(.wrap,.page,.paper,main,article){border-radius:20px}}
.atlas-doc :is(h1,h2,h3,h4){font-family:var(--a-ui);color:var(--a-ink);letter-spacing:-.025em;text-wrap:balance}
.atlas-doc h1{font-weight:800;font-size:clamp(2rem,5.4vw,3.2rem);line-height:1.08;margin:0 0 10px;padding:0;border:0;letter-spacing:-.04em}
.atlas-doc h2{font-weight:800;font-size:clamp(1.4rem,3.2vw,1.85rem);line-height:1.2;margin:54px 0 16px;padding:0;border:0;display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 12px;clear:both}
.atlas-doc h2::before{content:"";flex:none;width:11px;height:11px;border-radius:3px;background:var(--a-yellow);transform:rotate(45deg);align-self:center;margin-right:2px}
.atlas-doc h3{font-weight:800;font-size:1.1rem;margin:26px 0 8px}
.atlas-doc h4{font-weight:700;font-size:1rem;margin:18px 0 6px}
.atlas-doc :is(.sub,.kicker,.eyebrow){color:var(--a-mute);font-size:14px;font-weight:600;margin:0 0 18px;letter-spacing:0;text-transform:none}
.atlas-doc :is(.kicker,.eyebrow){color:var(--a-yellow);font:700 12px var(--a-ui);letter-spacing:.08em;text-transform:uppercase}
.atlas-doc .lead{font-size:1.1rem;color:var(--a-ink)}
.atlas-doc p{margin:0 0 14px;color:color-mix(in srgb,var(--a-ink) 90%,var(--a-mute))}
.atlas-doc :is(ul,ol){padding-left:1.3em;margin:0 0 14px}
.atlas-doc li{margin-bottom:5px}
.atlas-doc li::marker{color:var(--a-brand)}
.atlas-doc a{color:var(--a-brand);text-underline-offset:3px}
.atlas-doc b,.atlas-doc strong{font-weight:700;color:var(--a-ink)}
.atlas-doc :is(code,kbd,pre){font-family:var(--a-mono)}
.atlas-doc code{background:var(--soft);padding:1px 6px;border-radius:6px;font-size:.9em}
.atlas-doc hr{border:0;border-top:1px solid var(--a-line);margin:28px 0}
.atlas-doc footer{display:none}
.atlas-doc .part{font:700 12px var(--a-ui);letter-spacing:.1em;text-transform:uppercase;color:var(--a-yellow)}

/* boxes */
.atlas-doc :is(.infobox,.facts,aside){border:1px solid var(--a-line);background:color-mix(in srgb,var(--a-ink) 3%,var(--a-card));border-radius:20px;overflow:hidden;font-size:14px;line-height:1.5}
.atlas-doc .infobox{float:right;width:min(320px,100%);margin:4px 0 18px 26px;box-shadow:var(--a-shadow)}
@media(max-width:700px){.atlas-doc .infobox{float:none;width:100%;margin:6px 0 18px}}
.atlas-doc .infobox .ib-title{background:var(--a-brand);color:var(--a-brand-ink);font-weight:800;text-align:center;padding:11px 14px;font-size:14px}
.atlas-doc .infobox .ib-fig{padding:12px;text-align:center;background:var(--a-card)}
.atlas-doc .infobox dl{margin:0;padding:8px 16px 14px}
.atlas-doc .infobox dt{font-weight:700;margin-top:9px;color:var(--a-ink)}
.atlas-doc .infobox dd{margin:0;color:var(--a-mute)}
.atlas-doc :is(.box,.note,.callout){border:1px solid var(--a-line);border-left:4px solid var(--a-brand);background:color-mix(in srgb,var(--a-brand) 7%,var(--a-card));border-radius:14px;padding:14px 18px;margin:18px 0;font-size:15px;line-height:1.6}
.atlas-doc :is(.box,.note,.callout)>:last-child{margin-bottom:0}
.atlas-doc :is(.box,.note,.callout) b.t,.atlas-doc :is(.box,.note,.callout)>b:first-child{display:block;margin-bottom:3px}
.atlas-doc .toc{display:block;border:1px solid var(--a-line);background:color-mix(in srgb,var(--a-ink) 3%,var(--a-card));border-radius:18px;padding:16px 22px 18px;margin:20px 0;font-size:14.5px;clear:none}
.atlas-doc .toc>b{display:block;text-align:left;font:800 11px var(--a-ui);letter-spacing:.1em;text-transform:uppercase;color:var(--a-mute);margin-bottom:8px}
.atlas-doc .toc ol{columns:2 230px;column-gap:30px;margin:0;padding-left:1.4em}
.atlas-doc .toc li{break-inside:avoid;margin:3px 0}
.atlas-doc .toc a{text-decoration:none;font-weight:600;color:var(--a-ink)}
.atlas-doc .toc a:hover{color:var(--a-brand)}
.atlas-doc .cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:16px 0}
.atlas-doc .cols>div{border:1px solid var(--a-line);border-radius:16px;padding:14px 16px;background:color-mix(in srgb,var(--a-ink) 3%,var(--a-card));font-size:14.5px;line-height:1.55}
.atlas-doc .cols>div>b{display:block;margin-bottom:3px}

/* figures */
.atlas-doc figure{margin:22px 0;padding:18px;border:1px solid var(--a-line);border-radius:20px;background:color-mix(in srgb,var(--a-ink) 3%,var(--a-card));overflow:hidden}
.atlas-doc figure svg{max-width:100%;height:auto}
.atlas-doc figcaption{margin-top:12px;font-size:13px;line-height:1.5;color:var(--a-mute)}
.atlas-doc figcaption b{color:var(--a-ink)}
.atlas-doc figure.side{margin:6px 0 16px 26px}
@media(max-width:700px){.atlas-doc figure.side{float:none;width:100%;margin:16px 0}}

/* tables */
.atlas-doc :is(.tbl,.tablewrap,.scroll){margin:20px 0;overflow-x:auto;border:1px solid var(--a-line);border-radius:18px;background:var(--a-card);clear:both}
.atlas-doc table{width:100%;min-width:520px;border-collapse:separate;border-spacing:0;font-size:14.5px;line-height:1.5;margin:0}
.atlas-doc :is(.tbl,.tablewrap,.scroll)>table{border:0}
.atlas-doc>:is(.wrap,.page,.paper,main,article)>table{border:1px solid var(--a-line);border-radius:18px;overflow:hidden;margin:20px 0}
.atlas-doc caption{text-align:left;font-weight:800;padding:14px 16px 8px;caption-side:top}
.atlas-doc :is(th,td){padding:11px 16px;text-align:left;vertical-align:top;border:0;border-bottom:1px solid var(--a-line)}
.atlas-doc th{background:color-mix(in srgb,var(--a-ink) 5%,var(--a-card));font:700 11.5px var(--a-ui);letter-spacing:.06em;text-transform:uppercase;color:var(--a-mute);white-space:nowrap}
.atlas-doc tr:last-child>td{border-bottom:0}
.atlas-doc td:first-child{font-weight:700;color:var(--a-ink)}
.atlas-doc tbody tr:nth-child(even)>td{background:color-mix(in srgb,var(--a-ink) 2.5%,transparent)}
.atlas-doc tbody tr:hover>td{background:color-mix(in srgb,var(--a-brand) 8%,transparent)}

/* self-test accordions */
.atlas-doc details{border:1px solid var(--a-line);border-radius:16px;background:color-mix(in srgb,var(--a-ink) 3%,var(--a-card));margin:10px 0;overflow:hidden;transition:border-color .15s}
.atlas-doc details:hover,.atlas-doc details[open]{border-color:var(--a-brand)}
.atlas-doc details>summary{cursor:pointer;list-style:none;padding:15px 56px 15px 18px;font-weight:700;position:relative;color:var(--a-ink)}
.atlas-doc details>summary::-webkit-details-marker{display:none}
.atlas-doc details>summary::after{content:"+";position:absolute;right:16px;top:50%;margin-top:-14px;width:28px;height:28px;border-radius:9px;display:grid;place-items:center;
  background:color-mix(in srgb,var(--a-brand) 15%,transparent);color:var(--a-brand);font-weight:800;transition:transform .2s}
.atlas-doc details[open]>summary::after{transform:rotate(45deg)}
.atlas-doc details>:not(summary){padding:0 18px 16px;margin:0;color:var(--a-mute)}
.atlas-doc :focus-visible{outline:2px solid var(--a-brand);outline-offset:2px}
@media(max-width:560px){.atlas-doc h2{margin-top:42px}.atlas-doc :is(th,td){padding:9px 12px}}

.a-menu-links{display:flex;gap:28px}
@media(min-width:1500px){.atlas-doc .toc ol{columns:3 230px}}
@media(min-width:1400px){.atlas-doc{font-size:17px}}

/* ---------- quiz ---------- */
.quiz-wrap{max-width:820px;margin:0 auto;padding:clamp(28px,6vw,64px) 16px 40px;font-family:var(--a-ui);color:var(--a-ink)}
body.quiz-page{margin:0;background:var(--a-bg);-webkit-font-smoothing:antialiased;
  background-image:radial-gradient(900px 360px at 50% -100px,color-mix(in srgb,var(--a-brand) 13%,transparent),transparent 70%);background-repeat:no-repeat}
.quiz-wrap *{box-sizing:border-box}
.quiz-wrap h1{font-size:clamp(2rem,5.5vw,3.2rem);font-weight:800;letter-spacing:-.04em;margin:0 0 8px}
.quiz-wrap .lead{margin:0 0 24px;color:var(--a-mute)}
.quiz-filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.quiz-filters button{font:600 13px var(--a-ui);padding:7px 13px;border-radius:99px;border:1px solid var(--a-line);background:var(--a-card);color:var(--a-ink);cursor:pointer}
.quiz-filters button small{color:var(--a-mute);margin-left:4px}
.quiz-filters button:hover{border-color:var(--gc,var(--a-brand))}
.quiz-filters button.on{background:var(--gc,var(--a-brand));border-color:transparent;color:var(--a-brand-ink)}
.quiz-filters button.on small{color:inherit;opacity:.7}
.quiz-bar{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--a-mute);font-weight:600;margin-bottom:8px}
.q-link{background:none;border:0;color:var(--a-brand);font:600 13.5px var(--a-ui);cursor:pointer;text-decoration:none;padding:0}
.q-link:hover{text-decoration:underline}
.q-prog{height:4px;border-radius:4px;background:var(--a-line);overflow:hidden;margin-bottom:22px}
.q-prog i{display:block;height:100%;width:0;background:var(--a-grad);transition:width .3s}
.q-card{display:flex;flex-direction:column;gap:14px;width:100%;min-height:280px;padding:clamp(22px,5vw,40px);border-radius:28px;border:1px solid var(--a-line);background:var(--a-card);box-shadow:var(--a-shadow);
  color:var(--a-ink);text-align:left;cursor:pointer;font-family:var(--a-ui);transition:border-color .2s,transform .2s;position:relative;overflow:hidden}
.q-card::before{content:"";position:absolute;inset:0;background:linear-gradient(160deg,color-mix(in srgb,var(--gc,var(--a-brand)) 14%,transparent),transparent 50%);pointer-events:none}
.q-card:hover{border-color:var(--gc,var(--a-brand))}
.q-card.flip{border-color:var(--gc,var(--a-brand))}
.q-subj{font:800 12px var(--a-ui);letter-spacing:.08em;text-transform:uppercase;color:var(--gc,var(--a-brand));position:relative}
.q-text{font-size:clamp(1.3rem,3.4vw,1.8rem);font-weight:700;line-height:1.3;letter-spacing:-.02em;position:relative}
.q-ans{font-size:1.1rem;line-height:1.6;color:var(--a-ink);padding-top:16px;border-top:1px dashed var(--a-line);position:relative}
.q-hint{margin-top:auto;font-size:13px;color:var(--a-mute);position:relative}
.q-card[hidden],.q-done[hidden]{display:none}
.q-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px}
.q-actions[hidden]{display:none}
.q-actions button{height:52px;border-radius:14px;font:700 15px var(--a-ui);cursor:pointer;border:1px solid var(--a-line);background:var(--a-card);color:var(--a-ink)}
.q-actions .q-yes{background:var(--a-brand);color:var(--a-brand-ink);border-color:transparent}
.q-actions button:hover{border-color:var(--a-brand)}
.quiz-wrap #qopen{display:inline-block;margin-top:16px}
.quiz-wrap #qopen[hidden]{display:none}
.q-done{text-align:center;padding:48px 16px;border:1px dashed var(--a-line);border-radius:24px}
.q-done h2{margin:0 0 6px;font-size:1.6rem}.q-done p{color:var(--a-mute);margin:0 0 18px}

/* boxes sit beside floated info boxes instead of running underneath them */
.atlas-doc :is(.toc,.box,.note,.callout,.cols){display:flow-root}
.atlas-doc .infobox>h4{margin:0;padding:11px 14px;background:var(--a-brand);color:var(--a-brand-ink);font-weight:800;font-size:14px;text-align:center;letter-spacing:0}
.atlas-doc>.wrap>header>p,.atlas-doc>:is(.page,.paper,main,article)>header>p{color:var(--a-mute);font-size:1.05rem}
.atlas-doc .infobox .ib-title{margin:0;border-radius:0}
.atlas-doc .infobox table{min-width:0;font-size:13.5px;border:0;margin:0}
.atlas-doc .infobox :is(th,td){padding:8px 14px;border-bottom:1px solid var(--a-line)}
.atlas-doc .infobox th{background:none;color:var(--a-ink);font:700 13.5px var(--a-ui);letter-spacing:0;text-transform:none;white-space:normal;width:38%}
.atlas-doc .infobox td{color:var(--a-mute);font-weight:400}
.atlas-doc .infobox td:first-child{font-weight:400;color:var(--a-mute)}
.atlas-doc .infobox tbody tr:nth-child(even)>td,.atlas-doc .infobox tr:hover>td{background:none}
.atlas-doc .infobox :is(.tw,.fl,.svgbox,.ib-fig){padding:12px;text-align:center;background:var(--a-card);display:flex;justify-content:center;overflow-x:auto}
.atlas-doc .infobox .tw{display:block;padding:0;text-align:left}
.atlas-doc figure:not(.side){clear:both}
@media(max-width:520px){.stats li{flex:1 1 50%;border-bottom:1px solid var(--a-line)}.stats li:nth-child(2n){border-right:0}.stats li:nth-last-child(-n+2){border-bottom:0}}
.atlas-doc h2{display:block}
.atlas-doc h2::before{display:inline-block;vertical-align:middle;margin:0 14px 4px 3px}
.atlas-doc h2>span,.atlas-doc h2>small{margin-left:10px}

/* ---------- home dashboard ---------- */
.hero{padding-bottom:clamp(36px,6vw,64px)}
.hero-search{max-width:660px;height:64px;font-size:16px}
.suggest{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;align-items:center;margin:16px auto 4px;max-width:660px;font-size:13px;color:var(--a-mute)}
.suggest button{font:600 13px var(--a-ui);padding:5px 12px;border-radius:99px;border:1px solid var(--a-line);background:color-mix(in srgb,var(--a-card) 85%,transparent);color:var(--a-ink);cursor:pointer}
.suggest button:hover{border-color:var(--a-brand);color:var(--a-brand)}
.hero-actions{margin-top:22px}
.dash{display:grid;gap:18px;margin-top:-8px;grid-template-columns:1fr}
@media(min-width:900px){.dash{grid-template-columns:1.25fr 1fr}.dash .refresh{grid-row:span 2}}
@media(min-width:1240px){.dash{grid-template-columns:1.3fr 1fr 1fr}.dash .refresh{grid-row:auto}}
.dcard{position:relative;padding:24px;border-radius:24px;border:1px solid var(--a-line);background:var(--a-card);box-shadow:var(--a-shadow);display:flex;flex-direction:column;gap:14px;overflow:hidden;min-width:0}
.dcard[hidden]{display:none}
.dcard.refresh{--gc:var(--a-brand);background:linear-gradient(160deg,color-mix(in srgb,var(--gc) 13%,var(--a-card)),var(--a-card) 60%)}
.d-top{display:flex;justify-content:space-between;align-items:center;gap:10px}
.d-tag{font:800 11.5px var(--a-ui);letter-spacing:.09em;text-transform:uppercase;color:var(--a-yellow)}
.d-subj{font:700 12.5px var(--a-ui);color:var(--gc)}
.dcard h3{margin:0}
.d-q{font-size:clamp(1.25rem,2.6vw,1.7rem);line-height:1.3;font-weight:700;letter-spacing:-.02em}
.d-a{padding-top:14px;border-top:1px dashed var(--a-line);color:var(--a-ink);line-height:1.6}
.d-a[hidden],.dcard .btn[hidden]{display:none}
.d-actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:auto}
.d-actions .btn{height:42px;padding:0 18px}
.d-link{background:none;border:0;color:var(--a-brand);font:600 13.5px var(--a-ui);cursor:pointer;padding:0}
.d-link:hover{text-decoration:underline}
.d-mute{margin:0;color:var(--a-mute);font-size:14.5px;line-height:1.55}
.ring-row{display:flex;align-items:center;gap:16px}
.ring{width:92px;height:92px;flex:none}
.ring circle{fill:none;stroke-width:9}
.r-bg{stroke:var(--a-line)}.r-fg{stroke:var(--a-brand);stroke-linecap:round;transition:stroke-dasharray .5s}
.ring text{font:800 21px var(--a-ui);fill:var(--a-ink)}
.d-big{font-size:1.35rem;letter-spacing:-.02em}
.d-sub{font:700 12px var(--a-ui);letter-spacing:.06em;text-transform:uppercase;color:var(--a-mute);margin-top:4px}
.bars,.recent{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.bars a{display:grid;grid-template-columns:1fr auto;gap:2px 10px;padding:9px 12px;border-radius:12px;text-decoration:none;color:var(--a-ink);font-weight:600;font-size:14px;border:1px solid transparent}
.bars a:hover,.recent a:hover{background:color-mix(in srgb,var(--gc) 10%,transparent);border-color:color-mix(in srgb,var(--gc) 30%,transparent)}
.bars em{font-style:normal;color:var(--a-mute);font-size:12.5px}
.bars i{grid-column:1/-1;height:4px;border-radius:4px;background:var(--a-line);overflow:hidden}
.bars i b{display:block;height:100%;background:var(--gc);border-radius:4px}
.recent a{display:flex;flex-direction:column;padding:10px 12px;border-radius:12px;text-decoration:none;color:var(--a-ink);border:1px solid transparent}
.recent .r-s{font:700 11.5px var(--a-ui);letter-spacing:.05em;text-transform:uppercase;color:var(--gc)}
.recent .r-h{font-weight:600;font-size:14.5px;line-height:1.35;margin-top:2px}
.strip{margin-top:48px}
.s-group{margin-top:22px;--gc:var(--a-brand)}
.s-group[data-g=lang]{--gc:var(--a-lang)}.s-group[data-g=nat]{--gc:var(--a-nat)}.s-group[data-g=prac]{--gc:var(--a-prac)}
.s-group h3{margin:0 0 10px;font:800 12px var(--a-ui);letter-spacing:.08em;text-transform:uppercase;color:var(--gc);display:flex;align-items:center;gap:8px}
.s-group h3::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--gc);transform:rotate(45deg)}
.s-chips{display:flex;flex-wrap:wrap;gap:10px}
.s-chip{display:inline-flex;align-items:center;gap:10px;padding:10px 16px 10px 12px;border-radius:14px;border:1px solid var(--a-line);background:var(--a-card);color:var(--a-ink);text-decoration:none;font-weight:600;font-size:14.5px;transition:border-color .15s,transform .15s}
.s-chip svg{width:24px;height:24px;fill:none;stroke:var(--gc);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;flex:none}
.s-chip:hover{border-color:var(--gc);transform:translateY(-2px)}
.strip .group-head h2::before{display:none}
.strip .group-head{border:0;padding-bottom:0}
.a-menu-in{justify-content:flex-start;padding-top:12px}
.a-menu-x{position:sticky;top:12px;align-self:flex-end;z-index:2}
.a-menu-search{margin-top:auto}
.a-menu-links{margin-bottom:auto}