:root{
  --bg:#fbfaf7; --surface:#ffffff; --ink:#14161f; --muted:#4b5263; --line:#e6e3dc;
  --accent:#2453d6; --accent-ink:#1a3fa8; --pin:#ef6a4c; --soft:#eef2fd; --warn:#fff6e5; --warn-line:#f1d9a6;
  --radius:14px; --max:1080px; --read:720px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.65}
img,svg{max-width:100%;height:auto}
a{color:var(--accent);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:var(--accent-ink);text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--pin);outline-offset:2px;border-radius:4px}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:8px 12px;z-index:10}
.skip:focus{left:8px;top:8px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.read{max-width:var(--read)}

/* header */
.site-header{background:rgba(251,250,247,.92);backdrop-filter:saturate(1.4) blur(6px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;flex-wrap:wrap}
.brand{display:inline-flex;align-items:center;text-decoration:none;color:var(--ink)}
.brand svg{display:block;height:32px;width:auto}
.nav{display:flex;gap:4px;flex-wrap:wrap;margin:0;padding:0;list-style:none}
.nav a{display:block;padding:8px 12px;border-radius:999px;text-decoration:none;color:var(--muted);font-weight:550;font-size:15px}
.nav a:hover{background:var(--soft);color:var(--accent-ink)}
.nav a[aria-current="page"]{background:var(--ink);color:#fff}

/* hero */
.hero{padding:64px 0 40px}
.eyebrow{display:inline-block;font-size:13px;font-weight:650;letter-spacing:.06em;text-transform:uppercase;color:var(--pin);margin-bottom:12px}
h1{font-size:clamp(32px,5vw,52px);line-height:1.08;letter-spacing:-.02em;margin:0 0 18px}
h2{font-size:clamp(24px,3vw,30px);line-height:1.2;letter-spacing:-.01em;margin:48px 0 12px}
h3{font-size:20px;line-height:1.3;margin:28px 0 8px}
.lead{font-size:clamp(18px,2.2vw,21px);color:var(--muted);max-width:720px;margin:0 0 24px}
.meta{font-size:14px;color:var(--muted)}
.btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px}
.btn{display:inline-block;padding:11px 18px;border-radius:999px;text-decoration:none;font-weight:600;border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn.primary{background:var(--ink);color:#fff}
.btn:hover{background:var(--accent);border-color:var(--accent);color:#fff}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:24px 0}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.card h3{margin-top:0}
.card p{margin:0 0 12px;color:var(--muted)}
.card a.more{font-weight:600;text-decoration:none}
.card a.more:hover{text-decoration:underline}

main{padding-bottom:64px}
article p, article li{max-width:var(--read)}
.prose ul,.prose ol{padding-left:22px}
.prose li{margin:6px 0}
.note{background:var(--soft);border-radius:var(--radius);padding:16px 20px;margin:20px 0;max-width:var(--read)}
.note.warn{background:var(--warn);border:1px solid var(--warn-line)}
.note p{margin:6px 0}
.history{border-left:3px solid var(--pin);padding:4px 0 4px 20px;margin:28px 0;max-width:var(--read)}

/* tools */
.toc{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0 8px;padding:0;list-style:none}
.toc a{display:inline-block;padding:6px 12px;border:1px solid var(--line);border-radius:999px;background:var(--surface);text-decoration:none;font-size:15px;color:var(--ink)}
.toc a:hover{border-color:var(--accent);color:var(--accent)}
.category{scroll-margin-top:84px}
.tools{list-style:none;padding:0;margin:16px 0;display:grid;gap:12px}
.tool{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px 18px;max-width:none}
.tool-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap}
.tool-name{font-weight:700;font-size:18px}
.tool p{margin:6px 0 0;color:var(--ink)}
.tool .detail{color:var(--muted);font-size:15px}
.price{font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;padding:3px 9px;border-radius:999px;white-space:nowrap}
.price.free{background:#e3f6ea;color:#17663a}
.price.freemium{background:#e6eefe;color:#1a3fa8}
.price.paid{background:#fde9e4;color:#9a3215}
.more-link{margin:8px 0 0;color:var(--muted);max-width:var(--read)}

/* code + tables */
code{font-family:var(--mono);font-size:.88em;background:#f0eee8;padding:2px 6px;border-radius:6px;word-break:break-word}
pre{font-family:var(--mono);font-size:14px;background:#14161f;color:#f5f3ee;padding:14px 16px;border-radius:12px;overflow-x:auto;max-width:var(--read)}
pre code{background:none;padding:0;color:inherit}
.table-wrap{overflow-x:auto;max-width:100%;margin:16px 0;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
table{border-collapse:collapse;width:100%;font-size:15px}
th,td{text-align:left;vertical-align:top;padding:10px 14px;border-bottom:1px solid var(--line)}
th{background:#f5f3ee;font-weight:650}
tr:last-child td{border-bottom:0}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:32px 0 40px;color:var(--muted);font-size:15px}
.site-footer .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.site-footer ul{list-style:none;margin:0;padding:0;display:flex;gap:16px;flex-wrap:wrap}
.site-footer a{color:var(--muted)}

@media (max-width:820px){
  .cards{grid-template-columns:1fr}
  .hero{padding:40px 0 24px}
  body{font-size:16.5px}
}
@media (max-width:480px){
  .site-header .wrap{padding-top:10px;padding-bottom:8px;gap:6px}
  .nav a{padding:6px 10px;font-size:14px}
  .site-header{position:static}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.table-wrap table{min-width:600px}
td code{white-space:nowrap;word-break:normal}
/* mobile hardening */
html,body{overflow-x:hidden}
.site-footer .wrap>*{min-width:0;max-width:100%}
.site-footer ul{row-gap:8px}
p,li,a{overflow-wrap:break-word}
.more-link a,.tool-name{overflow-wrap:anywhere}
@media (max-width:480px){.site-footer .wrap{flex-direction:column}.site-footer ul{gap:10px 16px}}