:root{--bg:#f5f8f9;--sf:#fff;--ink:#0f1e2a;--mu:#506472;--ln:#d6e0e5;--ac:#4338ca;--acink:#fff;--cd:#0d1a24;--ci:#e4edf2;box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0c161e;--sf:#142330;--ink:#e5eef3;--mu:#9db0bd;--ln:#27394a;--ac:#a5b4fc;--acink:#1e1b4b;--cd:#08111a}}
:root[data-theme="dark"]{--bg:#0c161e;--sf:#142330;--ink:#e5eef3;--mu:#9db0bd;--ln:#27394a;--ac:#a5b4fc;--acink:#1e1b4b;--cd:#08111a}
*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:70px;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.7 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--ac)}
:focus-visible{outline:3px solid var(--ac);outline-offset:2px}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:var(--sf);padding:8px;z-index:20}
#prog{position:fixed;top:0;left:0;height:3px;width:0;background:var(--ac);z-index:30}
header{position:sticky;top:env(safe-area-inset-top,0px);background:var(--sf);border-bottom:1px solid var(--ln);z-index:10}
.bar{max-width:1040px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;gap:8px 24px;flex-wrap:wrap}
.logo{font-weight:700;font-size:1.35rem;letter-spacing:-.03em;color:var(--ink);text-decoration:none}.logo b{color:var(--ac)}
nav{margin-left:auto;display:flex;gap:18px;align-items:center}
nav a{color:var(--mu);text-decoration:none}nav a:hover{color:var(--ink)}
#tg{margin:0;background:transparent;color:var(--ink);border:1px solid var(--ln);padding:4px 10px;font-size:1rem}
main{max-width:1040px;margin:0 auto;padding:32px 20px 64px;outline:0}
h1{font-size:clamp(1.8rem,4.5vw,2.6rem);line-height:1.15;letter-spacing:-.03em;margin:.2em 0 .4em}
h2{font-size:1.5rem;margin:2em 0 .5em;letter-spacing:-.01em}h3{font-size:1.15rem;margin:1.6em 0 .3em}
.hero{padding:12px 0 8px;max-width:720px}.hero p{color:var(--mu);font-size:1.12rem}
input,textarea{width:100%;font:inherit;padding:11px 13px;border:1px solid var(--ln);border-radius:8px;background:var(--sf);color:var(--ink)}
button{font:inherit;font-weight:600;background:var(--ac);color:var(--acink);border:0;border-radius:8px;padding:9px 18px;cursor:pointer;margin-top:14px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0 6px}
.chip{margin:0;background:var(--sf);color:var(--ink);border:1px solid var(--ln);padding:5px 14px;font-weight:400;border-radius:99px}.chip.on{background:var(--ac);color:var(--acink);border-color:var(--ac)}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:16px;margin-top:18px}
.card{display:flex;flex-direction:column;gap:4px;background:var(--sf);border:1px solid var(--ln);border-radius:10px;padding:18px 20px;text-decoration:none;color:var(--ink);transition:border-color .15s}
.card:hover{border-color:var(--ac)}.card strong{font-size:1.1rem;line-height:1.35}.card span{color:var(--mu);font-size:.94rem}.card small,.tag{color:var(--ac);font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:.05em}
.art{max-width:740px}.meta{color:var(--mu);font-size:.93rem}.crumb{margin:0 0 6px}
.toc{background:var(--sf);border:1px solid var(--ln);border-radius:8px;padding:10px 18px;margin:20px 0}.toc summary{cursor:pointer;font-weight:600}.toc ol{margin:8px 0;padding-left:20px}
pre{position:relative;background:var(--cd);color:var(--ci);padding:16px 18px;border-radius:8px;overflow-x:auto;font:14px/1.55 ui-monospace,SFMono-Regular,Consolas,monospace;margin:14px 0}
pre button{position:absolute;top:6px;right:6px;margin:0;padding:2px 10px;font-size:.78rem;background:#ffffff22;color:var(--ci)}
code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.9em}p code,li code{background:var(--sf);border:1px solid var(--ln);padding:1px 5px;border-radius:4px}
.note{border-left:4px solid var(--ac);background:var(--sf);padding:10px 16px;margin:18px 0}
.sc{overflow-x:auto}table{border-collapse:collapse;width:100%;background:var(--sf);font-size:.93rem}th,td{border:1px solid var(--ln);padding:8px 10px;text-align:left;vertical-align:top}
label{display:block;font-weight:600;margin:14px 0 4px}
footer{border-top:1px solid var(--ln);background:var(--sf);color:var(--mu);font-size:.92rem}.ft{max-width:1040px;margin:0 auto;padding:22px 20px;display:flex;flex-wrap:wrap;gap:8px 20px}.ft span{margin-right:auto}
#cc{position:fixed;left:0;right:0;bottom:0;background:var(--sf);border-top:1px solid var(--ln);padding:14px 20px calc(14px + env(safe-area-inset-bottom,0px));display:none;z-index:40}#cc.on{display:block}
#cc div{max-width:1040px;margin:0 auto;display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;font-size:.93rem}#cc p{margin:0;flex:1 1 360px}#cc button{margin:0;padding:7px 15px}#cc .alt{background:transparent;color:var(--ink);border:1px solid var(--ln)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.card{transition:none}}