:root{--bg:#f7f9f8;--surface:#fff;--ink:#0f1a17;--muted:#5b6b66;--line:#e3e9e6;--brand:#0f8a5f;--brand-2:#0c6e4c;--brand-soft:#e6f4ee;--todo:#fff1c2;--todo-ink:#7a5300;--shadow:0 1px 2px rgba(15,26,23,.05),0 8px 24px rgba(15,26,23,.06);--radius:16px;--max:1180px}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0b1210;--surface:#121b18;--ink:#e6efeb;--muted:#93a39e;--line:#22302b;--brand:#3ccf91;--brand-2:#2fb27c;--brand-soft:#173128;--todo:#3d3112;--todo-ink:#ffd879;--shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.3)}}
:root[data-theme="dark"]{--bg:#0b1210;--surface:#121b18;--ink:#e6efeb;--muted:#93a39e;--line:#22302b;--brand:#3ccf91;--brand-2:#2fb27c;--brand-soft:#173128;--todo:#3d3112;--todo-ink:#ffd879;--shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.3)}
*{box-sizing:border-box}html{scroll-behavior:auto;scroll-padding-top:84px}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 Inter,system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans","Noto Sans Devanagari",sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--brand-2)}a:hover{color:var(--brand)}
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--brand);z-index:30;transition:width .1s linear}
header.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.bar{max-width:var(--max);margin:0 auto;padding:12px 20px;display:flex;align-items:center;gap:18px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.04em;color:var(--ink);text-decoration:none;font-size:18px}
.logo .mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--brand),#0b5f86);display:grid;place-items:center;color:#fff}
.logo .mark svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
nav.pages{display:flex;gap:4px;margin-left:auto}
nav.pages a{padding:7px 12px;border-radius:9px;text-decoration:none;color:var(--muted);font-weight:600;font-size:14px}
nav.pages a:hover{background:var(--brand-soft);color:var(--ink)}
nav.pages a[aria-current="page"]{background:var(--brand-soft);color:var(--brand-2)}
.icon-btn{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink);display:grid;place-items:center;cursor:pointer}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.hero{background:radial-gradient(1200px 360px at 15% -40%,var(--brand-soft),transparent 70%);border-bottom:1px solid var(--line)}
.hero-in{max-width:var(--max);margin:0 auto;padding:56px 20px 40px}
.eyebrow{margin:0 0 10px;font-size:12.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--brand-2)}
h1{margin:0;font-size:clamp(32px,5vw,48px);line-height:1.1;letter-spacing:-.02em}
.lead{max-width:760px;margin:16px 0 0;font-size:18px;color:var(--muted)}
.meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;align-items:center}
.chip{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:99px;background:var(--surface);border:1px solid var(--line);font-size:13px;color:var(--muted)}
.chip.date{color:var(--ink);font-weight:600}
.actions{display:flex;gap:8px;margin-top:22px}
.btn{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;border-radius:11px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font:600 14px/1 inherit;cursor:pointer;text-decoration:none}
.btn:hover{border-color:var(--brand)}
.btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.draft{max-width:var(--max);margin:20px auto 0;padding:0 20px;display:flex}
.draft{gap:12px;align-items:center;flex-wrap:wrap}
.draft>span{flex:1;min-width:240px;background:var(--todo);color:var(--todo-ink);border-radius:12px;padding:10px 14px;font-size:14px}
.draft button{height:38px;padding:0 14px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font-weight:600;cursor:pointer}
mark.todo{background:var(--todo);color:var(--todo-ink);border-radius:5px;padding:1px 5px;box-decoration-break:clone;-webkit-box-decoration-break:clone}
mark.todo.flash{outline:3px solid var(--brand);outline-offset:2px}
.glance{max-width:var(--max);margin:36px auto 0;padding:0 20px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.card .ic{width:40px;height:40px;border-radius:12px;background:var(--brand-soft);color:var(--brand-2);display:grid;place-items:center;margin-bottom:12px}
.card .ic svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.card h3{margin:0 0 6px;font-size:15.5px;line-height:1.35}
.card p{margin:0;font-size:14px;line-height:1.55;color:var(--muted)}
.layout{max-width:var(--max);margin:0 auto;padding:44px 20px 80px;display:grid;grid-template-columns:260px minmax(0,1fr);gap:48px}
aside.toc{position:sticky;top:88px;align-self:start;max-height:calc(100vh - 110px);overflow:auto}
.toc details{border:0}
.toc summary{list-style:none;font-size:12.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:10px;cursor:default}
.toc summary::-webkit-details-marker{display:none}
.toc ol{list-style:none;margin:0;padding:0;border-left:2px solid var(--line)}
.toc li a{display:block;padding:6px 0 6px 14px;margin-left:-2px;border-left:2px solid transparent;color:var(--muted);text-decoration:none;font-size:14px;line-height:1.4}
.toc li a:hover{color:var(--ink)}
.toc li a.on{color:var(--brand-2);border-left-color:var(--brand);font-weight:600}
article.doc{max-width:760px}
.sec{padding-bottom:12px}
.sec+.sec{border-top:1px solid var(--line);padding-top:28px}
.doc h2{position:relative;margin:0 0 12px;font-size:24px;line-height:1.3;letter-spacing:-.01em}
.doc h3{margin:22px 0 6px;font-size:17px}
.doc p,.doc li{color:color-mix(in srgb,var(--ink) 86%,var(--muted))}
.doc ul{padding-left:0;list-style:none;margin:10px 0 18px}
.doc li{position:relative;padding-left:22px;margin:7px 0}
.doc li::before{content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--brand)}
.anchor{position:absolute;left:-26px;top:0;color:var(--line);text-decoration:none;opacity:0;transition:opacity .15s}
.doc h2:hover .anchor{opacity:1;color:var(--brand)}
footer.foot{border-top:1px solid var(--line);background:var(--surface)}
.foot-in{max-width:var(--max);margin:0 auto;padding:28px 20px;display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;color:var(--muted);font-size:14px}
.foot-in nav{display:flex;gap:16px}
.to-top{position:fixed;right:20px;bottom:20px;opacity:0;pointer-events:none;transition:opacity .2s}
.to-top.show{opacity:1;pointer-events:auto}
@media (max-width:900px){.layout{grid-template-columns:1fr;gap:20px;padding-top:28px}aside.toc{position:static;max-height:none;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}.toc summary{cursor:pointer;margin:0}.toc details[open] summary{margin-bottom:10px}.toc summary::after{content:" ▾"}.anchor{display:none}}
@media (max-width:560px){.bar{gap:10px}.logo span.word{display:none}nav.pages a{padding:7px 9px}.hero-in{padding:36px 16px 28px}.lead{font-size:16.5px}.layout,.glance,.draft{padding-left:16px;padding-right:16px}}
@media print{header.top,.actions,.draft,aside.toc,.to-top,.progress,.anchor{display:none!important}body{background:#fff;color:#000;font-size:12pt}.hero{background:none}.layout{display:block;padding:0}.card{box-shadow:none;break-inside:avoid}mark.todo{background:#ffeb99;color:#000}a{color:#000}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

.foot-copy{display:flex;flex-direction:column;gap:2px}.ownership{font-size:12px;line-height:1.45}.pages a{white-space:nowrap}.toc li a.on{background:var(--brand-soft);border-radius:0 9px 9px 0}.toc li a{transition:color .2s ease,background .2s ease}.toc li a:hover{background:color-mix(in srgb,var(--brand-soft) 68%,transparent)}
@media (max-width:760px){.bar{flex-wrap:wrap}.logo{flex:1}.pages{order:3;width:100%;margin-left:0;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}.pages::-webkit-scrollbar{display:none}.pages a{flex:0 0 auto}.icon-btn#theme{margin-left:auto}}