:root{
  --ink:#101114;
  --text:#20242b;
  --muted:#606875;
  --line:#17191d;
  --paper:#fbfaf6;
  --panel:#ffffff;
  --mint:#38d6a3;
  --blue:#2156f3;
  --coral:#ff6b57;
  --amber:#f4c542;
  --violet:#7965e8;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--text);
  background:var(--paper);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);font-size:18px;line-height:1.5}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
p,h1,h2,h3{overflow-wrap:anywhere}
.site-header{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:26px;padding:18px clamp(18px,4vw,58px);background:rgba(255,255,255,.94);border-bottom:2px solid var(--line);backdrop-filter:blur(14px)}
.brand{display:flex;align-items:center;gap:12px;font-weight:950;font-size:25px;letter-spacing:-.03em}
.mark{display:grid;place-items:center;width:48px;height:48px;border:2px solid var(--line);border-radius:8px;background:var(--ink);color:#fff;font-size:16px}
.nav{display:flex;align-items:center;gap:26px;font-weight:760;font-size:16px}
.nav a:last-child{background:var(--blue);color:#fff;border:2px solid var(--blue);border-radius:8px;padding:12px 18px}
.menu-toggle{display:none;border:2px solid var(--line);border-radius:8px;background:#fff;padding:10px 14px;font-weight:900}
.hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(330px,.75fr);gap:42px;align-items:center;min-height:690px;padding:74px clamp(20px,6vw,92px) 60px;background:#fff;border-bottom:2px solid var(--line)}
.hero-tool{display:block;min-height:0;padding:56px clamp(20px,6vw,92px) 64px}
.hero-tool .hero-copy{max-width:900px;margin:0 0 34px}
.hero-tool .hero-actions{margin-top:26px}
.kicker{margin:0 0 16px;color:var(--blue);font-weight:950;font-size:13px;text-transform:uppercase;letter-spacing:.13em}
h1{margin:0;max-width:980px;font-size:clamp(52px,7.3vw,104px);line-height:.91;font-weight:950;letter-spacing:-.055em}
h2{margin:0;font-size:clamp(38px,5.2vw,78px);line-height:.96;font-weight:950;letter-spacing:-.05em}
h3{margin:0;font-size:30px;line-height:1.05;letter-spacing:-.035em}
.lead{max-width:840px;margin:28px 0 0;color:var(--muted);font-size:clamp(22px,2.05vw,30px);line-height:1.4}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:56px;border:2px solid var(--line);border-radius:8px;padding:14px 20px;background:#fff;font-weight:920}
.button.primary{background:var(--blue);border-color:var(--blue);color:#fff}
.button.secondary{background:#fff}
.scanner-card{border:2px solid var(--line);border-radius:8px;overflow:hidden;background:#fff;box-shadow:10px 10px 0 var(--ink)}
.scanner-top{display:flex;align-items:center;gap:8px;padding:16px 18px;border-bottom:2px solid var(--line)}
.dot{width:12px;height:12px;border-radius:50%;background:var(--coral)}
.dot:nth-child(2){background:var(--amber)}
.dot:nth-child(3){background:var(--mint)}
.scanner-top strong{margin-left:auto;text-transform:uppercase;font-size:12px;letter-spacing:.12em}
.scanner-screen{padding:28px;background:linear-gradient(135deg,#edf8ff 0%,#fff 46%,#f6f1ff 100%)}
.scan-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:8px;margin-bottom:24px}
.scan-grid span{aspect-ratio:1;border:2px solid rgba(23,25,29,.26);border-radius:6px;background:#fff}
.scan-grid span:nth-child(3n){background:var(--mint)}
.scan-grid span:nth-child(4n){background:var(--blue)}
.scan-grid span:nth-child(7n){background:var(--coral)}
.score{display:grid;gap:12px}
.score b{font-size:52px;line-height:.9;letter-spacing:-.05em}
.score p{margin:0;color:var(--muted);font-size:19px}
.quick-grid,.section{padding:86px clamp(20px,6vw,92px)}
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;padding-top:0}
.quick-grid article{min-height:210px;padding:30px;background:#fff;border:2px solid var(--line);border-right:0}
.quick-grid article:last-child{border-right:2px solid var(--line)}
.quick-grid strong{display:block;font-size:28px;line-height:1.05;letter-spacing:-.035em}
.quick-grid p{color:var(--muted);font-size:19px}
.section-head{max-width:980px;margin:0 0 42px}
.section-head p:not(.kicker){max-width:900px;margin:22px 0 0;color:var(--muted);font-size:23px;line-height:1.42}
.tool-section,.faq-section{background:#fff;border-top:2px solid var(--line);border-bottom:2px solid var(--line)}
.detector{display:grid;grid-template-columns:minmax(0,.9fr) minmax(320px,.55fr);gap:0;border:2px solid var(--line);background:#fff}
.dropzone{display:grid;place-items:center;min-height:360px;padding:34px;border-right:2px solid var(--line);background:#f9fbff;text-align:center;cursor:pointer}
.dropzone.drag{background:#ebfff8}
.dropzone.drag .drop-inner{border-color:var(--blue);background:#eef6ff}
.dropzone input{position:absolute;inline-size:1px;block-size:1px;opacity:0}
.drop-inner{max-width:540px;width:100%;padding:30px 24px;border:2px dashed #b7bdc9;border-radius:16px;background:rgba(255,255,255,.5);transition:border-color .15s ease,background .15s ease}
.preview[hidden],[hidden]{display:none}
.upload-icon{display:grid;place-items:center;width:86px;height:86px;margin:0 auto 22px;border:2px solid var(--line);border-radius:14px;background:var(--ink);color:#fff;font-size:34px;font-weight:950}
.dropzone h3{font-size:36px}
.dropzone p{margin:14px auto 0;color:var(--muted);font-size:19px}
.preview{max-height:330px;margin:0 auto 20px;border:2px solid var(--line);border-radius:8px;object-fit:contain;background:#fff}
.prompt-found{margin-top:18px;padding:16px 18px;border:2px solid var(--violet);border-radius:8px;background:#f5f3ff;text-align:left}
.prompt-label{display:block;margin-bottom:8px;font-size:12px;font-weight:950;text-transform:uppercase;letter-spacing:.08em;color:var(--violet)}
.prompt-text{margin:0;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;line-height:1.5;color:var(--text);word-break:break-word;max-height:140px;overflow:auto}
.ela-wrap{margin-top:18px;text-align:left}
.ela-wrap canvas{width:100%;height:auto;border:2px solid var(--line);border-radius:8px;background:#000}
.result-panel{padding:30px;background:#fff}
.meter-line{height:18px;border:2px solid var(--line);border-radius:999px;background:#f0f1f4;overflow:hidden}
.meter-fill{width:0%;height:100%;background:linear-gradient(90deg,var(--mint),var(--amber),var(--coral));transition:width .35s ease}
.result-score{display:block;margin:20px 0 8px;font-size:54px;line-height:.9;font-weight:950;letter-spacing:-.05em}
.result-label{margin:0 0 18px;color:var(--muted);font-weight:800}
.signal-list{display:grid;gap:10px;margin:22px 0 0;padding:0;list-style:none}
.signal-list li{display:flex;justify-content:space-between;gap:14px;padding:12px 0;border-top:1px solid #d8dbe2;font-size:16px}
.signal-list b{font-weight:920}
.signal-list li.flag{color:var(--coral)}
.signal-list li.flag b{color:var(--coral)}
.signal-list li.good{color:#1a9c6f}
.signal-list li.good b{color:#1a9c6f}
.signal-list li.muted{color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:2px solid var(--line);border-left:2px solid var(--line)}
.card{min-height:250px;padding:30px;background:#fff;border-right:2px solid var(--line);border-bottom:2px solid var(--line)}
.card .tag{display:inline-flex;margin-bottom:22px;padding:7px 10px;border:2px solid var(--line);border-radius:999px;background:#fff;color:var(--blue);font-size:12px;font-weight:950;text-transform:uppercase;letter-spacing:.08em}
.card p{color:var(--muted);font-size:18px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);border:2px solid var(--line);border-right:0;border-bottom:0;background:#fff}
.step{min-height:260px;padding:28px;border-right:2px solid var(--line);border-bottom:2px solid var(--line)}
.step span{display:grid;place-items:center;width:52px;height:52px;margin-bottom:22px;border-radius:8px;background:var(--ink);color:#fff;font-weight:950}
.step p{color:var(--muted);font-size:18px}
.compare{width:100%;border-collapse:collapse;background:#fff;border:2px solid var(--line)}
.compare th,.compare td{padding:20px;vertical-align:top;border-right:2px solid var(--line);border-bottom:2px solid var(--line);text-align:left}
.compare th{background:var(--ink);color:#fff;font-size:16px}
.compare td:first-child{font-weight:950}
.faq-list{display:grid;border-top:2px solid var(--line);border-left:2px solid var(--line)}
details{background:#fff;border-right:2px solid var(--line);border-bottom:2px solid var(--line);padding:26px 30px}
summary{cursor:pointer;font-size:24px;line-height:1.15;font-weight:950;letter-spacing:-.03em}
details p{max-width:1040px;color:var(--muted);font-size:19px}
.footer{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:34px;padding:62px clamp(20px,6vw,92px);background:var(--ink);color:#fff}
.footer p,.footer a{color:#d9dce5}
.footer a{display:block;margin:10px 0;font-weight:800}
.fineprint{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.22);padding-top:22px;font-size:14px}
@media(max-width:1050px){
  .hero,.detector{grid-template-columns:1fr}
  .dropzone{border-right:0;border-bottom:2px solid var(--line)}
  .grid{grid-template-columns:repeat(2,1fr)}
  .steps,.quick-grid{grid-template-columns:repeat(2,1fr)}
  .quick-grid article:nth-child(2n){border-right:2px solid var(--line)}
}
@media(max-width:720px){
  body{font-size:16px}
  .site-header{padding:13px 15px}
  .brand{min-width:0;font-size:21px}
  .brand span:last-child{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .mark{width:42px;height:42px}
  .menu-toggle{display:inline-flex}
  .nav{display:none;position:absolute;left:14px;right:14px;top:70px;flex-direction:column;align-items:stretch;gap:0;background:#fff;border:2px solid var(--line);padding:8px}
  .nav.open{display:flex}
  .nav a,.nav a:last-child{display:block;background:#fff;color:var(--ink);border:0;border-bottom:1px solid #d9dce5;border-radius:0;padding:13px}
  .nav a:last-child{border-bottom:0}
  .hero,.section,.quick-grid{padding-left:17px;padding-right:17px}
  .hero{padding-top:52px}
  h1{font-size:clamp(44px,15vw,68px)}
  h2{font-size:clamp(36px,12vw,54px)}
  .lead,.section-head p:not(.kicker){font-size:20px}
  .scanner-card{box-shadow:6px 6px 0 var(--ink)}
  .quick-grid,.grid,.steps,.footer{grid-template-columns:1fr}
  .quick-grid article,.quick-grid article:last-child{border-right:2px solid var(--line);border-bottom:0}
  .quick-grid article:last-child{border-bottom:2px solid var(--line)}
  .compare{display:block;overflow-x:auto}
  .footer{padding-bottom:86px}
}