/* DiffDojo static site styles. Shared tokens/nav/footer first, then landing sections. */
:root{
  --bg:#0b0e13; --bg2:#10141b; --surface:#151a22; --surface2:#1b212b; --line:#252c37; --line2:#303a47;
  --text:#e8edf3; --text2:#aab4c2; --muted:#6f7b8b;
  --accent:#2ed58a; --accent2:#5fe3a6; --accent-dim:rgba(46,213,138,.14);
  --grad:linear-gradient(90deg,#9fe87c 0%,#2ed58a 50%,#2cc7b2 100%);
  --grad-soft:linear-gradient(135deg,#4ddc98 0%,#2ac4a6 100%);
  --add:#3fcf6b; --add-bg:rgba(63,207,107,.10); --del:#ff6b6b; --del-bg:rgba(255,107,107,.10);
  --kw:#ff7b72; --fn:#d2a8ff; --str:#a5d6ff;
  --sans:"Instrument Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  color-scheme:dark;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg) radial-gradient(70% 40% at 50% -5%,rgba(46,213,138,.09),transparent 70%) no-repeat;color:var(--text);font-family:var(--sans);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;text-wrap:balance;letter-spacing:-.02em}
h2{font-size:clamp(30px,3.6vw,46px);line-height:1.05;font-weight:600}
.g{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.wrap{width:min(1440px,100%);margin:0 auto;padding-inline:clamp(16px,4vw,56px)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:8px;font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer;font-family:inherit}
.btn.primary{background:var(--accent);color:#04160a}.btn.primary:hover{background:var(--accent2)}
.btn.ghost{border-color:var(--line2);color:var(--text)}.btn.ghost:hover{background:var(--surface)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.eyebrow{font-size:14px;font-weight:500;color:var(--accent)}
.sub{color:var(--text2);font-size:18px;max-width:56ch;line-height:1.55}
.hero .sub{margin:26px 0 0;font-size:19px}
.sub b{color:var(--text);font-weight:600}
code{font-family:var(--mono);font-size:.92em;background:var(--surface2);padding:1px 5px;border-radius:4px}
section{padding-block:104px}
.sec-head{text-align:center;max-width:1100px;margin:0 auto 56px}
.sec-head h2{margin-top:12px;font-size:clamp(34px,4.4vw,60px);max-width:18ch;margin-inline:auto}
.sec-head p{color:var(--text2);font-size:19px;line-height:1.55;max-width:60ch;margin:22px auto 0}
/* nav */
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:rgba(11,14,19,.8);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:28px;height:60px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;letter-spacing:-.01em}
.logo i{width:26px;height:26px;border-radius:6px;background:var(--grad-soft);display:inline-flex;align-items:center;justify-content:center;font-style:normal;overflow:hidden}
.logo i svg{display:block}
.nav .links{display:flex;gap:22px;font-size:14px;color:var(--text2)}
.nav .links a:hover,.nav .links a[aria-current]{color:var(--text)}
.nav .right{margin-left:auto;display:flex;gap:10px;align-items:center}
.nav .btn{padding:8px 14px;font-size:14px;white-space:nowrap}
main>.article,main>.article-foot,main.benchmark{padding-inline:clamp(16px,4vw,56px)}
/* hero */
.hero{padding-block:80px 0}
.hero-top{display:grid;grid-template-columns:1fr;gap:0;max-width:880px;margin-inline:auto;text-align:center;justify-items:center}
.hero h1{font-size:clamp(40px,6vw,84px);line-height:.98;font-weight:600;max-width:16ch;margin-top:14px}
.hero .cta,.hero .proof{justify-content:center}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}
.proof{display:flex;gap:28px;flex-wrap:wrap;font-size:14px;color:var(--muted);margin-top:22px}
.proof b{color:var(--text);font-weight:500}
.shot{position:relative;margin-top:56px}
.shot::before{content:"";position:absolute;inset:-10% 0 30%;background:radial-gradient(60% 60% at 50% 40%,rgba(46,213,138,.12),transparent 70%);pointer-events:none}
.shot .window{position:relative;transform:perspective(1800px) rotateX(4deg);transform-origin:top center}
/* window */
.window{background:var(--surface);border:1px solid var(--line2);border-radius:12px;overflow:hidden;box-shadow:0 40px 100px -30px rgba(0,0,0,.8);font-size:13px}
.win-bar{display:flex;align-items:center;gap:14px;padding:10px 14px;border-bottom:1px solid var(--line);background:var(--bg2)}
.win-bar .dots{display:flex;gap:6px}.win-bar .dots i{width:10px;height:10px;border-radius:50%;background:var(--line2);display:block}
.win-bar .crumb{font-family:var(--mono);font-size:12px;color:var(--muted)}.win-bar .crumb b{color:var(--text2);font-weight:500}
.win-bar .right{margin-left:auto;display:flex;gap:8px;align-items:center}
.pill{padding:3px 9px;border-radius:999px;font-size:11px;font-weight:600;border:1px solid var(--line2);color:var(--text2)}
.pill.phase{background:var(--accent-dim);color:var(--accent);border-color:transparent}
.win-body{display:grid;grid-template-columns:220px 1fr 280px;min-height:420px}
.files{border-right:1px solid var(--line);padding:12px 0}
.files h4,.side h4{margin:0 0 6px;padding:0 14px;font-size:11px;color:var(--muted);letter-spacing:.06em;text-transform:uppercase;font-weight:600}
.side h4{padding:0}
.files a{display:flex;justify-content:space-between;padding:7px 14px;font-family:var(--mono);font-size:12px;color:var(--text2)}
.files a.on{background:var(--surface2);color:var(--text);border-left:2px solid var(--accent)}
.files a span{color:var(--muted)}
.diff{font-family:var(--mono);font-size:12.5px;line-height:1.85;overflow-x:auto}
.diff .fh{padding:8px 14px;border-bottom:1px solid var(--line);color:var(--text2);display:flex;gap:12px;background:var(--bg2)}
.diff .fh .plus{color:var(--add)}.diff .fh .minus{color:var(--del)}
.row{display:grid;grid-template-columns:44px 44px 1fr;white-space:pre}
.row .ln{color:var(--muted);text-align:right;padding-right:10px;user-select:none;font-size:11px}
.row.add{background:var(--add-bg)}.row.add .ln{color:var(--add)}
.row.del{background:var(--del-bg)}.row.del .ln{color:var(--del)}
.row .c{padding-left:14px}
.kw{color:var(--kw)}.fn{color:var(--fn)}.str{color:var(--str)}
.comment{margin:6px 14px 8px 88px;background:var(--bg2);border:1px solid var(--line2);border-radius:8px;padding:10px 12px;font-family:var(--sans);white-space:normal;font-size:12.5px}
.comment .who{display:flex;gap:8px;align-items:center;margin-bottom:4px;color:var(--muted);font-size:11px}
.comment .av{width:18px;height:18px;border-radius:50%;background:var(--grad);color:#04160a;display:grid;place-items:center;font-weight:700;font-size:10px}
.side{border-left:1px solid var(--line);padding:14px;display:flex;flex-direction:column;gap:12px}
.brief{margin:0;padding-left:18px}.brief li{color:var(--text2);font-size:12.5px;margin:4px 0}
.verdict{margin-top:auto;display:grid;gap:8px}.verdict .btn{padding:9px 12px;font-size:13px;justify-content:center}
.verdict .req{background:var(--del);color:#2a0606}
/* loop */
.loop{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.step{border-top:1px solid var(--line2);padding:22px 0 0;display:flex;flex-direction:column;gap:14px}
.step .n{font-size:13px;font-weight:500;color:var(--accent)}
.step h3{font-size:22px;font-weight:600}
.step p{margin:0;color:var(--text2);font-size:14.5px}
.step .demo{margin-top:10px;font-size:14px;color:var(--text2);display:flex;flex-wrap:wrap;gap:8px 18px}.step .demo span{white-space:nowrap}
.step .demo .ok::before{content:"✓ ";color:var(--add)}.step .demo .no::before{content:"✕ ";color:var(--del)}
.step .demo .ok,.step .demo .no{color:var(--text)}
.step .demo .b{display:inline-block;padding:4px 10px;border-radius:6px;border:1px solid var(--line2);font-family:var(--sans);font-weight:600;font-size:12px;color:var(--text)}
.step .demo .b.req{background:var(--del);color:#2a0606;border-color:transparent}
/* train */
.train{background:linear-gradient(180deg,var(--bg2),var(--bg));border-top:1px solid var(--line)}
.cats{display:grid;grid-template-columns:repeat(3,1fr);gap:0 40px}
.cat{border-top:1px solid var(--line2);padding:20px 0 28px;display:grid;gap:6px;position:relative}
.cat:hover b{color:var(--accent)}
.cat b{font-size:17px;font-weight:600}
.cat span{color:var(--text2);font-size:14px}
.cat i{display:none;font-style:normal;font-family:var(--mono);font-size:11px;color:var(--muted)}
/* bench */
.bench{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.bench .big{font-size:clamp(64px,9vw,128px);line-height:.9;font-weight:600;letter-spacing:-.04em;font-variant-numeric:tabular-nums}
.bench p{color:var(--text2);font-size:17px;max-width:46ch}.bench p b{color:var(--text);font-weight:600}
.bars{display:grid;gap:14px;font-size:14px}
.bar{display:grid;grid-template-columns:150px 1fr 48px;gap:12px;align-items:center;color:var(--text2)}
.bar .t{height:10px;background:var(--surface2);border-radius:999px;overflow:hidden}
.bar .t i{display:block;height:100%;background:var(--line2);border-radius:999px}
.bar .t i{background:var(--grad);opacity:.85}
.bar em{font-style:normal;text-align:right;color:var(--text)}
/* why */
.why{max-width:1100px;margin-inline:auto;text-align:center}
.why h2{margin-top:12px;font-size:clamp(34px,4.4vw,60px);max-width:18ch;margin-inline:auto}
.why .lede{color:var(--text2);font-size:19px;line-height:1.55;max-width:60ch;margin:22px auto 0}
.why-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin-top:56px;text-align:left}
.why-cols>div{border-top:1px solid var(--line2);padding-top:20px}
.why-cols h3{font-size:20px;font-weight:600;margin-bottom:10px}
.why-cols p{margin:0;color:var(--text2);font-size:15px;line-height:1.6}
.why .cta{justify-content:center;margin-top:48px}
/* faq */
.faq{display:grid;grid-template-columns:1fr 1fr;gap:0 40px;max-width:1100px;margin-inline:auto}
.faq details{border-top:1px solid var(--line);padding:16px 0}
.faq summary{cursor:pointer;font-weight:600;font-size:17px;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::after{content:"+";color:var(--muted);font-weight:400}
.faq details[open] summary::after{content:"−"}
.faq p{margin:10px 0 0;color:var(--text2);font-size:15px;max-width:60ch}
/* blog */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.post{border-top:1px solid var(--line2);padding:20px 0 0;display:grid;gap:10px;align-content:start}
.post:hover b{color:var(--accent)}
.post .k{font-size:13px;font-weight:500;color:var(--accent)}
.post b{font-size:20px;font-weight:600;line-height:1.25;letter-spacing:-.01em}
.post span{color:var(--text2);font-size:14.5px}
/* closer */
.closer{text-align:center;padding-block:120px}
.closer h2{font-size:clamp(36px,5.5vw,76px);max-width:14ch;margin:0 auto}
.closer .cta{justify-content:center;margin-top:30px}
.closer p{color:var(--text2);margin:18px auto 0;max-width:48ch;font-size:17px}
footer{border-top:1px solid var(--line);padding-block:56px 40px;font-size:14px;color:var(--muted)}
.foot-grid{display:grid;grid-template-columns:1.4fr repeat(5,1fr);gap:32px}
.foot-grid h4{margin:0 0 14px;font-size:13px;font-weight:600;color:var(--text)}
.foot-grid div>a:not(.logo){display:block;color:var(--text2);margin-bottom:9px}
.foot-grid div>a:not(.logo):hover{color:var(--accent)}
.foot-brand p{margin:14px 0 18px;max-width:30ch;color:var(--text2)}
.foot-brand span{display:block;font-size:13px}
@media(max-width:980px){
  .win-body{grid-template-columns:1fr}.files,.side{display:none}
  .sec-head,.bench,.faq{grid-template-columns:1fr}.why-cols{grid-template-columns:1fr;gap:28px}
  .loop,.cats,.posts{grid-template-columns:1fr 1fr}.foot-grid{grid-template-columns:1fr 1fr}
  .nav .links{display:none}
  section{padding-block:72px}
}
@media(max-width:600px){
  .loop,.cats,.posts,.foot-grid{grid-template-columns:1fr}
  .nav .wrap{gap:16px}.nav .right .ghost{display:none}.nav .btn{padding:7px 12px;font-size:13px}
  .bars{gap:10px}.bar{grid-template-columns:1fr 44px;gap:4px 12px}.bar span{grid-column:1/-1;font-size:13px}
}