:root{--ink:#111827;--muted:#6B7280;--bg:#FFFFFF;--line:#E5E7EB;--card:#F9FAFB;--accent:#4F46E5}
@media (prefers-color-scheme:dark){:root{--ink:#F3F4F6;--muted:#9CA3AF;--bg:#0B0F19;--line:#1F2937;--card:#111827;--accent:#A5B4FC}}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans",sans-serif}
main{max-width:760px;margin:0 auto;padding:8px 16px 32px}a{color:var(--accent)}code{font-size:.9em;word-break:break-all}
.top{max-width:760px;margin:0 auto;padding:14px 16px;display:flex;justify-content:space-between;align-items:center;gap:12px}.top nav a{color:var(--muted);text-decoration:none;font-weight:600}.brand{display:inline-flex;gap:8px;align-items:center;font-weight:700;color:var(--ink);text-decoration:none}
h1{font-size:clamp(30px,7vw,44px);line-height:1.1;margin:.4em 0 .2em}h1.sh{font-size:clamp(24px,6vw,32px)}.sub{font-size:19px;color:var(--muted);margin:0 0 1em}
.btn{display:inline-block;padding:12px 18px;border-radius:12px;border:1px solid var(--line);background:var(--card);color:var(--ink);font:600 16px system-ui,sans-serif;text-decoration:none;cursor:pointer;min-height:48px}
.btn.primary{background:#4F46E5;border-color:#4F46E5;color:#fff}.btn.ghost{opacity:.7}.btn.wide{display:block;width:100%;text-align:center;margin:8px 0}
.tiles{list-style:none;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:12px}@media (max-width:340px){.tiles{grid-template-columns:1fr}}
.c-indigo{--c:#4F46E5;--cd:#A5B4FC}.c-magenta{--c:#E11D74;--cd:#F9A8D4}.c-teal{--c:#0F766E;--cd:#5EEAD4}.c-amber{--c:#D97706;--cd:#FCD34D}.dot{background:var(--c)}
.tile{border:1px solid var(--line);border-left:6px solid var(--c);border-radius:14px;padding:12px;background:var(--card)}.tile h3{margin:0 0 4px;font-size:17px}.tile h3 a{color:var(--ink);text-decoration:none}.tile h3 a:hover{text-decoration:underline}.tile p{margin:0}
.muted{color:var(--muted)}.small{font-size:13px}table{border-collapse:collapse;width:100%;font-size:14px}td,th{border-top:1px solid var(--line);padding:6px 4px;text-align:left;vertical-align:top}
.poster{background:var(--c);color:#fff;border-radius:20px;padding:22px;margin:12px 0}.poster.amber{color:#111827}.poster .k{font-weight:700;letter-spacing:.12em;text-transform:uppercase;font-size:13px;margin:0}
.poster .code{font-size:clamp(48px,14vw,84px);font-weight:800;line-height:1;margin:8px 0 4px}.poster .name{font-size:clamp(24px,6vw,32px);font-weight:700;margin:4px 0}.poster .hook{font-size:17px}
.poster .nick{margin:0;opacity:.92}.bars{margin:12px 0}.bar{display:grid;grid-template-columns:38% 1fr auto;gap:8px;align-items:center;margin:6px 0;font-size:14px}
.track{width:100%;height:10px;display:block}.track .bg{fill:rgba(255,255,255,.3)}.amber .track .bg{fill:rgba(17,24,39,.2)}
.bv{font-weight:700}.chips span{display:inline-block;border:1px solid currentColor;border-radius:999px;padding:2px 10px;margin:2px 4px 2px 0;font-size:13px}
.twins .k{margin-top:12px}.twins .big{font-size:22px;font-weight:700;margin:2px 0}.twins p{margin:2px 0}.pfoot{font-size:12px;margin:12px 0 0;opacity:.95}
.owner{border:1px solid var(--line);border-radius:14px;padding:12px;margin:8px 0}.owner .alt{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}.owner input{flex:1 1 100%;padding:10px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font-size:15px}
.stack{list-style:none;padding:0}.stack li{padding:8px 0;border-top:1px solid var(--line)}.dot{display:inline-block;width:12px;height:12px;border-radius:6px;margin-right:8px}
.pair tr.same td{font-weight:700}
.answer{font-size:18px}.updated,.crumbs{color:var(--muted);font-size:14px;margin:.2em 0}.howto li{margin:6px 0}.table-scroll{overflow-x:auto;margin:8px 0}.compare th[scope=row]{font-weight:600}
.faq dt{font-weight:700;margin-top:12px}.faq dd{margin:4px 0 0}.prompts li{margin:4px 0}.guide-list{list-style:none;padding:0}.guide-list li{padding:10px 0;border-top:1px solid var(--line)}.guide-list a{font-weight:700;font-size:18px}.foot{max-width:760px;margin:0 auto;padding:16px;color:var(--muted);font-size:13px;border-top:1px solid var(--line)}