:root {
  --bg: #0a0d12; --panel:#0f141c; --panel2:#141b25; --text:#eef3f8; --muted:#94a3b8;
  --line:#223044; --accent:#72e3a6; --accent2:#64b5f6; --code:#090c11; --shadow:0 18px 60px rgba(0,0,0,.24);
  --radius:16px; --sidebar:320px;
}
html[data-theme="light"] { --bg:#f5f7fa; --panel:#fff; --panel2:#f4f7fb; --text:#17202c; --muted:#65758b; --line:#dbe3ed; --accent:#087f5b; --accent2:#1769aa; --code:#f1f5f9; --shadow:0 18px 60px rgba(34,50,70,.10); }
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;background:var(--bg);color:var(--text);font:15px/1.65 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
button,input{font:inherit}.app-shell{min-height:100vh;display:grid;grid-template-columns:var(--sidebar) 1fr}.sidebar{height:100vh;position:sticky;top:0;background:var(--panel);border-right:1px solid var(--line);padding:18px;display:flex;flex-direction:column;overflow:hidden}.brand-row{display:flex;align-items:center;gap:12px;padding:4px 4px 16px}.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(145deg,var(--accent),var(--accent2));color:#06100b;display:grid;place-items:center;font-weight:900;font-size:18px}.brand-title{font-weight:800;letter-spacing:-.02em}.brand-subtitle{font-size:12px;color:var(--muted)}
.search-wrap{position:relative}.search-wrap input{width:100%;background:var(--panel2);border:1px solid var(--line);border-radius:12px;color:var(--text);padding:10px 38px 10px 36px;outline:none}.search-wrap input:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 15%,transparent)}.search-icon{position:absolute;left:12px;top:8px;font-size:19px;color:var(--muted)}kbd{position:absolute;right:10px;top:9px;border:1px solid var(--line);background:var(--panel);border-radius:6px;color:var(--muted);font:11px/1 ui-monospace;padding:5px 6px}.section-filter{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;padding:12px 0 8px;overflow:visible}.chip{min-width:0;width:100%;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap;border:1px solid var(--line);background:transparent;color:var(--muted);padding:6px 8px;border-radius:999px;cursor:pointer;font-size:12px;line-height:1.2;text-decoration:none!important}.chip:link,.chip:visited,.chip:hover,.chip:active{text-decoration:none!important}.chip.active,.chip:hover{color:var(--text);border-color:var(--accent);background:color-mix(in srgb,var(--accent) 10%,transparent)}.nav-tree{overflow:auto;padding:6px 2px 20px;scrollbar-color:var(--line) transparent}.nav-section{margin:12px 0 4px;color:var(--muted);text-transform:uppercase;letter-spacing:.10em;font-size:11px;font-weight:800}.nav-item{width:100%;display:block;text-align:left;border:0;background:transparent;color:var(--text);padding:8px 10px;border-radius:10px;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.nav-item:hover{background:var(--panel2)}.nav-item.active{background:color-mix(in srgb,var(--accent) 13%,var(--panel2));color:var(--accent)}.nav-empty{padding:18px 8px;color:var(--muted)}.sidebar-footer{margin-top:auto;border-top:1px solid var(--line);padding:12px 4px 2px;color:var(--muted);font-size:11px;display:flex;gap:7px;flex-wrap:wrap}
.main{min-width:0}.topbar{height:64px;position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 84%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px}.crumbs{color:var(--muted);font-size:13px}.top-actions{display:flex;gap:8px}.icon-btn,.btn{border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:10px;cursor:pointer}.icon-btn{width:38px;height:38px}.btn{padding:8px 12px}.btn:hover,.icon-btn:hover{border-color:var(--accent)}.content{max-width:1040px;margin:0 auto;padding:48px 56px 90px;outline:none}.hero{padding:10px 0 32px}.eyebrow{color:var(--accent);font-size:12px;text-transform:uppercase;letter-spacing:.12em;font-weight:900}.hero h1,.page-title{font-size:clamp(34px,5vw,58px);line-height:1.04;letter-spacing:-.045em;margin:8px 0 15px}.hero p,.lede{font-size:18px;color:var(--muted);max-width:760px}.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:26px 0}.stat{border:1px solid var(--line);background:var(--panel);border-radius:14px;padding:16px}.stat strong{display:block;font-size:24px}.stat span{color:var(--muted);font-size:12px}.section-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.section-card{border:1px solid var(--line);background:var(--panel);border-radius:var(--radius);padding:18px;cursor:pointer}.section-card:hover{border-color:var(--accent);transform:translateY(-1px)}.section-card h3{margin:0 0 4px}.section-card p{margin:0;color:var(--muted)}
.page-head{border-bottom:1px solid var(--line);padding-bottom:24px;margin-bottom:28px}.meta{display:flex;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:12px}.pill{border:1px solid var(--line);border-radius:999px;padding:4px 8px}.note-body{font-size:16px}.note-body p{margin:0 0 12px}.code-block{position:relative;background:var(--code);border:1px solid var(--line);border-radius:14px;margin:16px 0;overflow:hidden}.code-block pre{margin:0;padding:18px 54px 18px 18px;overflow:auto;color:var(--text);font:13.5px/1.65 ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;white-space:pre-wrap;word-break:break-word}.copy-btn{position:absolute;right:9px;top:9px;border:1px solid var(--line);background:var(--panel);color:var(--muted);border-radius:8px;padding:5px 8px;cursor:pointer;font-size:11px}.copy-btn:hover{color:var(--text);border-color:var(--accent)}.note-image{display:block;max-width:100%;border-radius:14px;border:1px solid var(--line);box-shadow:var(--shadow);margin:22px 0 8px}.caption{color:var(--muted);font-size:12px}.empty-state{border:1px dashed var(--line);background:var(--panel);border-radius:14px;padding:22px;color:var(--muted)}.search-results h2{margin-top:0}.result{border-bottom:1px solid var(--line);padding:16px 0;cursor:pointer}.result:hover h3{color:var(--accent)}.result h3{margin:0 0 4px;font-size:17px}.result p{margin:0;color:var(--muted);font-size:13px}.mark{background:color-mix(in srgb,var(--accent) 32%,transparent);color:var(--text);border-radius:3px;padding:0 2px}.toast{position:fixed;right:20px;bottom:20px;background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:10px;padding:10px 13px;opacity:0;transform:translateY(8px);pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:none}.mobile-only{display:none}
@media(max-width:860px){.app-shell{grid-template-columns:1fr}.sidebar{position:fixed;z-index:30;left:0;top:0;width:min(88vw,340px);transform:translateX(-105%);transition:.22s;box-shadow:var(--shadow)}.sidebar.open{transform:none}.mobile-only{display:inline-grid;place-items:center}.topbar{padding:0 16px}.content{padding:30px 20px 70px}.stat-grid{grid-template-columns:repeat(2,1fr)}.section-cards{grid-template-columns:1fr}.hero h1,.page-title{font-size:38px}}