:root{--bg:#ffffff;--fg:#0f172a;--muted:#64748b;--line:#e2e8f0;--card:#f8fafc;--accent:#0ea5e9;--accent-fg:#fff;--term:#0b1220;--term-fg:#e2e8f0;--ok:#166534;--okbg:#dcfce7;--err:#991b1b;--errbg:#fee2e2;--red:#dc2626}
@media (prefers-color-scheme:dark){:root{--bg:#0b1220;--fg:#e2e8f0;--muted:#94a3b8;--line:#1e293b;--card:#111a2e;--accent:#38bdf8;--accent-fg:#0b1220;--term:#060a14;--okbg:#14532d;--ok:#bbf7d0;--errbg:#7f1d1d;--err:#fecaca}}
*{box-sizing:border-box}html{font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,Inter,sans-serif;background:var(--bg);color:var(--fg)}
body{margin:0;display:flex;flex-direction:column;min-height:100vh}main{flex:1}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.wrap{width:min(1040px,100% - 32px);margin:0 auto}
.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.between{justify-content:space-between}.gap{gap:14px}.col{display:flex;flex-direction:column}
.top{border-bottom:1px solid var(--line);padding:12px 0;position:sticky;top:0;background:var(--bg);z-index:2}.top .row{justify-content:space-between}
.brand{font-weight:700;color:var(--fg);display:flex;align-items:center;gap:8px;font-size:18px}
nav a{color:var(--fg);opacity:.75}nav a.on,nav a:hover{opacity:1}
.who{display:flex;align-items:center;gap:6px;color:var(--muted)}.who img{border-radius:50%}
.inline{display:inline}button.link{background:none;border:0;color:var(--accent);cursor:pointer;font:inherit;padding:0}button.link.red{color:var(--red)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:10px;background:var(--fg);color:var(--bg);font-weight:600;border:1px solid transparent;cursor:pointer;font:inherit;font-weight:600}
.btn:hover{text-decoration:none;opacity:.9}.btn.small{padding:7px 14px;font-size:14px}.btn.ghost{background:transparent;color:var(--fg);border-color:var(--line)}
.btn.github{background:#24292f;color:#fff}.btn.google{background:#fff;color:#1f1f1f;border-color:#dadce0}.btn.red{background:var(--red);color:#fff}.btn.disabled{opacity:.45;cursor:not-allowed;pointer-events:auto}
.hero{padding:64px 0 32px}.kicker{color:var(--accent);font-weight:600;letter-spacing:.04em;text-transform:uppercase;font-size:13px;margin:0 0 8px}
h1{font-size:clamp(28px,4.5vw,46px);line-height:1.1;margin:0 0 16px;letter-spacing:-.02em}h2{font-size:24px;margin:32px 0 12px}h3{margin:0 0 6px;font-size:17px}
.lead{font-size:19px;color:var(--muted);max-width:720px;margin:0 0 24px}
.term{background:var(--term);color:var(--term-fg);padding:16px 18px;border-radius:12px;overflow:auto;font:14px/1.6 ui-monospace,SFMono-Regular,Menlo,monospace;margin:20px 0}.term .c{color:#7dd3fc;opacity:.8}.term.select{user-select:all}.term{position:relative}.term .copy{position:absolute;top:8px;right:8px;font:12px ui-monospace,SFMono-Regular,Menlo,monospace;padding:3px 8px;border-radius:6px;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.08);color:var(--term-fg);cursor:pointer;opacity:.7}.term .copy:hover{opacity:1}
code{font:.92em ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--card);padding:1px 5px;border-radius:5px}pre code{background:none;padding:0}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;margin:24px 0}.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px;margin:16px 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px}.card p{margin:6px 0;color:var(--muted)}.card.empty{text-align:center;padding:36px}.card.secret{border-color:var(--accent)}
.steps ol{padding-left:22px}.steps li{margin:8px 0}
.list{display:flex;flex-direction:column;gap:12px}.big{font-size:18px;font-weight:600}
.muted{color:var(--muted)}.small-row{font-size:14px;margin:4px 0 12px}
.flash{padding:10px 14px;border-radius:10px;margin:16px 0}.flash.ok{background:var(--okbg);color:var(--ok)}.flash.err{background:var(--errbg);color:var(--err)}
input,select{font:inherit;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--fg);min-width:180px}
.tbl{width:100%;border-collapse:collapse;margin:12px 0}.tbl th{text-align:left;font-size:13px;color:var(--muted);font-weight:600;padding:8px 10px;border-bottom:1px solid var(--line)}.tbl td{padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}.num{text-align:right}
.files td a.dir{font-weight:600}
.tabs{display:flex;gap:4px}.tabs a{padding:6px 12px;border-radius:8px;color:var(--fg)}.tabs a.on{background:var(--card);border:1px solid var(--line)}
.crumb{font-size:22px}.crumb a{color:var(--fg)}
table.code{border-collapse:collapse;width:100%;font:13px/1.5 ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden}
table.code td{padding:0 10px;white-space:pre;vertical-align:top}table.code td.n{color:var(--muted);text-align:right;user-select:none;width:1%;border-right:1px solid var(--line)}table.code td.blame{color:var(--muted);width:1%;border-right:1px solid var(--line)}table.code td.src{white-space:pre-wrap;word-break:break-word}
.op{font-size:12px;padding:2px 7px;border-radius:6px;background:var(--card);border:1px solid var(--line)}.op.add{color:var(--ok)}.op.delete{color:var(--red)}
details.danger summary{cursor:pointer;color:var(--muted)}details.danger form{margin-top:8px}
.doc{max-width:760px}.doc p{color:inherit}
.foot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid var(--line);padding:20px 0;color:var(--muted);font-size:14px;margin-top:48px}