:root{--gold:#c9a227;--gold-dark:#a38520;--gold-bg:#fdf8e8;--bg:#fafaf8;--surface:#fff;--border:#e4e4e2;--border-light:#eeeeec;--ink:#1a1a2e;--body:#3d3d4e;--caption:#52525b;--ghost:#71717a;--error:#dc2626;--radius:12px;--radius-sm:8px;--font:'DM Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif}
@media(prefers-color-scheme:dark){:root{--bg:#161310;--surface:#1e1a15;--border:#2c2820;--border-light:#241f19;--ink:#ece7db;--body:#c9c2b4;--caption:#a49c8a;--ghost:#8a8272;--gold:#e0b94a;--gold-dark:#e0b94a;--gold-bg:#241f14}}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--body);font-family:var(--font);font-size:16px;line-height:1.65}
a{color:var(--gold-dark);text-decoration:none}a:hover{text-decoration:underline}
.wrap{display:flex;max-width:1180px;margin:0 auto;min-height:100vh;min-height:100dvh}
/* Help sidebar — replicates the app sidebar's visual grammar
   (src/components/HistorySidebar.jsx / .ct-history-sidebar, .ct-sidebar-*).
   Values are copied from the app CSS so /help reads as the same product;
   the app's own files are untouched. */
.side{width:260px;flex:0 0 260px;border-right:1px solid var(--border);padding:0;position:sticky;top:0;height:100vh;overflow-y:auto;background:var(--surface)}
.side__brand{display:flex;align-items:center;gap:9px;padding:14px 14px 10px 24px;font-weight:700;color:var(--ink);font-size:16px;flex-shrink:0}
.side__brand img.brand-logo{height:22px;width:auto;display:block;flex:0 0 auto}
.side__brand b{color:var(--gold);font-weight:700}
.side__search{position:relative;padding:8px 14px;flex-shrink:0}
.side__search-icon{position:absolute;left:25px;top:50%;transform:translateY(-50%);color:var(--ghost);pointer-events:none;display:flex}
.side__search input{width:100%;padding:7px 12px 7px 32px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);color:var(--ink);font:inherit;font-size:12.5px}
.side__search input:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(201,162,39,.15)}
.side nav{padding:4px 10px 24px}
.side nav a{display:block;padding:9px 14px;border-radius:8px;color:var(--body);font-size:13.5px;margin:1px 0;transition:background .15s,color .15s}
.side nav a:hover{background:var(--gold-bg);color:var(--gold-dark);text-decoration:none}
.side nav a.active{background:var(--gold-bg);color:var(--gold-dark);font-weight:600}
.side nav a.hidden{display:none}
.side__foot{padding:14px 22px 24px;font-size:12.5px;color:var(--ghost);border-top:1px solid var(--border-light)}
.main{flex:1 0 auto;min-width:0;padding:34px 0 0;display:flex;flex-direction:column}
.main__inner{width:100%;max-width:820px;padding:0 46px 40px}
.topbar{display:none}
.crumbs{font-size:13px;color:var(--ghost);margin-bottom:6px}
.content h1{font-size:2rem;color:var(--ink);border-bottom:2px solid var(--gold);padding-bottom:.3em;margin:.2em 0 .8em}
.content h2{font-size:1.35rem;color:var(--ink);margin:1.8em 0 .5em}
.content h3{font-size:1.12rem;color:var(--ink);margin:1.5em 0 .4em}
.content h4{color:var(--caption);margin:1.2em 0 .3em}
.content p{margin:.7em 0}
.content img{max-width:100%;height:auto;border:1px solid var(--border);border-radius:var(--radius);margin:1.1em 0;display:block}
.content table{border-collapse:collapse;width:100%;margin:1.1em 0;font-size:.93rem;display:block;overflow-x:auto}
.content th,.content td{border:1px solid var(--border);padding:8px 11px;text-align:left}
.content th{background:var(--gold-bg);color:var(--ink)}
.content code{background:var(--surface);border:1px solid var(--border-light);padding:.08em .35em;border-radius:5px;font-size:.9em}
.content blockquote{border-left:3px solid var(--gold);margin:1.1em 0;padding:.5em 1.1em;background:var(--surface);color:var(--caption);border-radius:0 var(--radius-sm) var(--radius-sm) 0}
.content ul,.content ol{padding-left:1.4em}.content li{margin:.3em 0}
.content hr{border:0;border-top:1px solid var(--border);margin:2.4em 0}
.pager{display:flex;justify-content:space-between;gap:12px;margin-top:3em;border-top:1px solid var(--border);padding-top:1.4em}
.pager a{flex:1;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--ink)}
.pager a:hover{border-color:var(--gold);text-decoration:none}
.pager .nxt{text-align:right}.pager .lbl{display:block;font-size:12px;color:var(--ghost)}
.dl{display:inline-flex;align-items:center;gap:7px;margin:2px 0 8px;padding:9px 15px;background:var(--gold);color:#1a1712;border-radius:var(--radius-sm);font-weight:600;font-size:14px}
.dl:hover{background:var(--gold-dark);text-decoration:none;color:#1a1712}
/* Global footer — identical to the app footer (same .ct-footer markup + look).
   One footer, one contract: pinned to the bottom (margin-top:auto), never
   shrinks, links unbreakable, wraps between whole links only. */
.ct-footer{margin-top:auto;width:100%;box-sizing:border-box;padding:16px 32px;border-top:1px solid var(--border);text-align:center;font-size:12px;color:var(--caption);flex-shrink:0}
.ct-footer__inner{max-width:900px;margin:0 auto}
.ct-footer__links{margin-bottom:8px;display:flex;flex-wrap:wrap;justify-content:center;align-items:center}
.ct-footer__links a{color:var(--caption);text-decoration:none;transition:color .15s;white-space:nowrap;font-weight:500}
.ct-footer__links a:hover{color:var(--gold-dark)}
.ct-footer__sep{margin:0 8px;opacity:.45}
.ct-footer__credit{opacity:.75}
.ct-footer__credit a{color:var(--gold-dark);text-decoration:none;font-weight:600}
.ct-footer__disclaimer{opacity:.7}
.ct-footer__beta{margin-top:8px;font-size:11.5px;opacity:.8;display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:center}
.ct-footer__beta a{color:var(--gold-dark);text-decoration:none;display:inline-flex;align-items:center;gap:3px}
.ct-footer__beta-badge{font-size:9.5px;font-weight:700;letter-spacing:.06em;background:var(--gold);color:#2a2418;border-radius:4px;padding:1px 5px}
.ct-footer__bug-link{display:inline-flex;align-items:center;gap:3px;color:var(--caption)}
.ct-footer__bug-link:hover{color:var(--gold-dark)}
.menu-btn{display:none}
.side__close{display:none}
.side-backdrop{display:none}
.topbar__title{display:inline-flex;align-items:center;gap:8px;min-width:0}
.topbar__brand{color:var(--ink);font-weight:700;font-size:16px;white-space:nowrap}
.topbar__brand b{color:var(--gold);font-weight:700}
.topbar__brand:hover{text-decoration:none}
.topbar__help{font-size:11px;font-weight:600;color:var(--ghost);border:1px solid var(--border);border-radius:6px;padding:2px 7px;text-transform:uppercase;letter-spacing:.04em;white-space:nowrap;flex:0 0 auto}
@media(max-width:860px){
 body{display:flex;flex-direction:column;min-height:100vh;min-height:100dvh}
 .wrap{display:flex;flex-direction:column;flex:1 0 auto;min-height:0}
 .side{position:fixed;left:0;top:0;height:100vh;height:100dvh;transform:translateX(-100%);transition:transform 250ms cubic-bezier(.4,0,.2,1);z-index:50;width:280px;border-radius:0 20px 20px 0;box-shadow:var(--shadow-lg)}
 .side.open{transform:none}
 .main{padding:20px 0 0;flex:1 0 auto}
 .main__inner{padding:0 20px 32px}
 .topbar{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--border);position:sticky;top:0;background:var(--bg);z-index:20;flex-shrink:0}
 .menu-btn{display:inline-flex;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:8px 12px;font:inherit;color:var(--ink);cursor:pointer}
 .side__close{display:inline-flex;position:absolute;top:14px;right:14px;width:32px;height:32px;align-items:center;justify-content:center;background:var(--surface);border:1px solid var(--border);border-radius:8px;font-size:15px;line-height:1;color:var(--ink);cursor:pointer}
 .side__close:hover{border-color:var(--gold);color:var(--gold-dark)}
 .side-backdrop{display:block;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:40;opacity:0;pointer-events:none;transition:opacity .2s}
 .side-backdrop.open{opacity:1;pointer-events:auto}
}
@media(prefers-reduced-motion:reduce){.side,.side-backdrop,.side nav a{transition:none!important}}