/* Yazhi Scans & Labs — clinical dark theme */
:root{
  --bg:#0a1418;
  --bg-2:#0e1c22;
  --surface:#11242b;
  --surface-2:#16303a;
  --line:#1d3b45;
  --teal:#2dd4bf;
  --teal-dim:#159e8d;
  --blue:#5e9fd4;
  --text:#e6f0f2;
  --muted:#9bb4bb;
  --muted-2:#6f8b93;
  --danger:#f0876b;
  --radius:14px;
  --maxw:1140px;
  --ff-display:"Fraunces",Georgia,serif;
  --ff-body:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--ff-body);font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;display:block}
a{color:var(--teal);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--ff-display);font-weight:600;line-height:1.15;color:#fff;margin:0 0 .5em}
h1{font-size:clamp(2rem,5vw,3.3rem);letter-spacing:-.02em}
h2{font-size:clamp(1.5rem,3.5vw,2.3rem);letter-spacing:-.01em}
h3{font-size:1.25rem}
p{margin:0 0 1rem;color:var(--muted)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.eyebrow{font-family:var(--ff-body);font-size:.78rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--teal);margin-bottom:.8rem}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:4px}

/* header */
.site-head{position:sticky;top:0;z-index:50;background:rgba(10,20,24,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:70px}
.brand{display:flex;align-items:center;gap:.6rem;font-family:var(--ff-display);font-weight:600;font-size:1.25rem;color:#fff}
.brand:hover{text-decoration:none}
.brand .logo{width:38px;height:38px;flex:none}
.nav-links{display:flex;align-items:center;gap:1.6rem;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--muted);font-size:.93rem;font-weight:500}
.nav-links a:hover{color:#fff;text-decoration:none}
.nav-cta{background:var(--teal);color:#062018 !important;padding:.55rem 1.1rem;border-radius:999px;font-weight:600;font-size:.9rem}
.nav-cta:hover{background:#3ee9d4;text-decoration:none}
.menu-btn{display:none;background:none;border:1px solid var(--line);color:var(--text);border-radius:8px;padding:.45rem .6rem;cursor:pointer}
.has-sub{position:relative}
.submenu{position:absolute;top:calc(100% + 12px);left:50%;transform:translateX(-50%) translateY(6px);background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:.5rem;min-width:230px;display:grid;gap:2px;opacity:0;visibility:hidden;transition:.18s;box-shadow:0 20px 50px rgba(0,0,0,.45)}
.has-sub:hover .submenu,.has-sub:focus-within .submenu{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.submenu a{padding:.5rem .7rem;border-radius:8px;color:var(--muted);font-size:.88rem}
.submenu a:hover{background:var(--surface-2);color:#fff;text-decoration:none}

/* hero */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:
  radial-gradient(900px 500px at 80% -10%,rgba(45,212,191,.12),transparent 60%),
  radial-gradient(700px 500px at 0% 120%,rgba(94,159,212,.08),transparent 60%),var(--bg)}
.scanlines{position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:repeating-linear-gradient(180deg,transparent 0 3px,rgba(45,212,191,.025) 3px 4px)}
.hero-grid{position:absolute;inset:0;pointer-events:none;opacity:.35;
  background-image:linear-gradient(rgba(45,212,191,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(45,212,191,.06) 1px,transparent 1px);
  background-size:46px 46px;mask-image:radial-gradient(600px 400px at 75% 30%,#000,transparent 75%)}
.hero-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:3rem;align-items:center;padding:5.5rem 0 5rem}
.hero p.lead{font-size:1.15rem;max-width:46ch;color:var(--muted)}
.hero-cta{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.8rem}
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.8rem 1.5rem;border-radius:999px;font-weight:600;font-size:.95rem;cursor:pointer;border:1px solid transparent;transition:.18s}
.btn-primary{background:var(--teal);color:#062018}
.btn-primary:hover{background:#3ee9d4;text-decoration:none;transform:translateY(-1px)}
.btn-ghost{border-color:var(--line);color:var(--text);background:transparent}
.btn-ghost:hover{border-color:var(--teal);color:#fff;text-decoration:none}
.hero-card{position:relative;background:linear-gradient(160deg,var(--surface),var(--bg-2));border:1px solid var(--line);border-radius:20px;padding:1.6rem;box-shadow:0 30px 70px rgba(0,0,0,.4)}
.hero-card .scan-visual{width:100%;height:auto;border-radius:12px}

/* trust strip */
.trust{border-bottom:1px solid var(--line);background:var(--bg-2)}
.trust-row{display:flex;flex-wrap:wrap;gap:2rem;justify-content:space-between;padding:1.6rem 0}
.stat{display:flex;flex-direction:column}
.stat b{font-family:var(--ff-display);font-size:1.9rem;color:#fff;line-height:1}
.stat span{font-size:.82rem;color:var(--muted-2);text-transform:uppercase;letter-spacing:.08em;margin-top:.3rem}

/* sections */
section{padding:4.5rem 0}
.section-head{max-width:60ch;margin-bottom:2.6rem}
.grid{display:grid;gap:1.1rem}
.cards-3{grid-template-columns:repeat(3,1fr)}
.cards-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;transition:.2s}
.card:hover{border-color:var(--teal-dim);transform:translateY(-3px)}
.card .ic{width:46px;height:46px;margin-bottom:1rem}
.card h3{margin-bottom:.4rem}
.card p{font-size:.93rem;margin:0}
.card .more{display:inline-block;margin-top:1rem;font-size:.86rem;font-weight:600;color:var(--teal)}

/* feature split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.split.alt{direction:rtl}.split.alt>*{direction:ltr}
.bullets{list-style:none;padding:0;margin:1.2rem 0 0;display:grid;gap:.8rem}
.bullets li{display:flex;gap:.7rem;align-items:flex-start;color:var(--muted)}
.bullets svg{flex:none;margin-top:3px}
.media-box{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:1.4rem}

/* cta band */
.cta-band{background:linear-gradient(120deg,var(--surface-2),var(--bg-2));border:1px solid var(--line);border-radius:22px;padding:3rem;text-align:center}
.cta-band h2{margin-bottom:.6rem}

/* content pages */
.page-head{background:var(--bg-2);border-bottom:1px solid var(--line);padding:3.2rem 0}
.breadcrumb{font-size:.82rem;color:var(--muted-2);margin-bottom:.7rem}
.breadcrumb a{color:var(--muted)}
.prose{max-width:74ch}
.prose h2{margin-top:2rem}
.prose ul{color:var(--muted);padding-left:1.2rem}
.prose li{margin-bottom:.4rem}
.info-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;margin:1.5rem 0}
.info-grid .card{padding:1.2rem}
.layout{display:grid;grid-template-columns:1fr 300px;gap:2.5rem;align-items:start}
.aside{position:sticky;top:90px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem}
.aside h4{color:#fff;font-size:1rem}
.aside ul{list-style:none;padding:0;margin:0;display:grid;gap:.3rem}
.aside a{color:var(--muted);font-size:.9rem;display:block;padding:.35rem .5rem;border-radius:7px}
.aside a:hover{background:var(--surface-2);color:#fff;text-decoration:none}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:2rem}
.field{margin-bottom:1rem}
.field label{display:block;font-size:.85rem;color:var(--muted);margin-bottom:.35rem}
.field input,.field textarea{width:100%;background:var(--bg-2);border:1px solid var(--line);border-radius:9px;padding:.7rem .8rem;color:var(--text);font-family:inherit;font-size:.95rem}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--teal)}

/* footer */
.site-foot{background:var(--bg-2);border-top:1px solid var(--line);padding:3.5rem 0 1.5rem;margin-top:2rem}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2rem;margin-bottom:2.5rem}
.foot-grid h4{font-family:var(--ff-body);font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted-2)}
.foot-grid ul{list-style:none;padding:0;margin:0;display:grid;gap:.5rem}
.foot-grid a{color:var(--muted);font-size:.9rem}
.foot-grid a:hover{color:#fff}
.foot-bottom{border-top:1px solid var(--line);padding-top:1.4rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;color:var(--muted-2);font-size:.85rem}
.socials{display:flex;gap:.6rem}
.socials a{width:34px;height:34px;border:1px solid var(--line);border-radius:8px;display:grid;place-items:center;color:var(--muted)}
.socials a:hover{border-color:var(--teal);color:var(--teal)}

/* responsive */
@media(max-width:900px){
  .nav-links{position:fixed;inset:70px 0 auto 0;background:var(--bg-2);flex-direction:column;align-items:stretch;gap:0;padding:1rem 22px 1.5rem;border-bottom:1px solid var(--line);display:none}
  .nav-links.open{display:flex}
  .nav-links li{border-bottom:1px solid var(--line)}
  .nav-links a{display:block;padding:.85rem 0}
  .submenu{position:static;transform:none;opacity:1;visibility:visible;box-shadow:none;border:none;background:transparent;padding:.2rem 0 .6rem .8rem;min-width:0}
  .menu-btn{display:block}
  .hero-inner,.split,.contact-grid,.layout{grid-template-columns:1fr;gap:2rem}
  .split.alt{direction:ltr}
  .cards-3,.cards-2,.foot-grid,.info-grid{grid-template-columns:1fr 1fr}
  .aside{position:static}
}
@media(max-width:560px){
  .cards-3,.cards-2,.foot-grid,.info-grid,.trust-row{grid-template-columns:1fr}
  .cta-band{padding:2rem 1.2rem}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto !important;transition:none !important}}