/* Complex Surgical Instruments — main stylesheet
   No external fonts or CDNs: system font stack only. */
:root{
  --navy:#0b2545;
  --navy-2:#13315c;
  --steel:#5c7a99;
  --steel-light:#dbe4ee;
  --mist:#f3f6fa;
  --teal:#0f8b8d;
  --teal-dark:#0a6b6d;
  --amber:#c77d0a;
  --ink:#16202c;
  --muted:#53606f;
  --white:#fff;
  --line:#d5dde6;
  --radius:10px;
  --shadow:0 6px 24px rgba(11,37,69,.10);
  --max:1180px;
  --font:"Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);line-height:1.65;background:#fff;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal-dark)}
a:hover{color:var(--navy)}
h1,h2,h3,h4{color:var(--navy);line-height:1.2;margin:0 0 .6em;font-weight:700}
h1{font-size:clamp(2rem,4.5vw,3.2rem)}
h2{font-size:clamp(1.55rem,3vw,2.2rem)}
h3{font-size:1.2rem}
p{margin:0 0 1em}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.skip-link{position:absolute;left:-999px;top:0;background:var(--navy);color:#fff;padding:10px 16px;z-index:200}
.skip-link:focus{left:10px;top:10px}
:focus-visible{outline:3px solid var(--amber);outline-offset:2px}

/* Top bar */
.topbar{background:var(--navy);color:#cfdbea;font-size:.85rem}
.topbar .container{display:flex;justify-content:space-between;gap:12px;padding-top:7px;padding-bottom:7px;flex-wrap:wrap}
.topbar a{color:#fff}

/* Header */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100}
.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:74px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand img{height:46px;width:auto}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:9px 12px;font:inherit;color:var(--navy);cursor:pointer}
.nav-list{list-style:none;display:flex;gap:4px;margin:0;padding:0;align-items:center}
.nav-list a{display:block;padding:10px 12px;text-decoration:none;color:var(--navy);font-weight:600;font-size:.95rem;border-radius:8px}
.nav-list a:hover,.nav-list a[aria-current="page"]{background:var(--mist);color:var(--teal-dark)}
.nav-list .cta a{background:var(--teal);color:#fff}
.nav-list .cta a:hover{background:var(--teal-dark);color:#fff}
.has-sub{position:relative}
.sub{list-style:none;margin:0;padding:8px;position:absolute;top:100%;left:0;min-width:230px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);display:none}
.has-sub:hover .sub,.has-sub:focus-within .sub{display:block}
.sub a{font-weight:500}

/* Hero */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 60%,#1d4e6e 100%);color:#fff;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(15,139,141,.35),transparent 70%)}
.hero .container{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;padding-top:72px;padding-bottom:72px;position:relative;z-index:1}
.hero h1{color:#fff}
.hero p.lead{font-size:1.15rem;color:#d6e2f0;max-width:56ch}
.hero .eyebrow{color:#7fd6d8}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;font-weight:700;color:var(--teal-dark);margin-bottom:.8em}
.hero-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);padding:26px}
.hero-card h2{color:#fff;font-size:1.2rem}
.hero-card ul{margin:0;padding-left:1.1em;color:#d6e2f0}
.page-hero{background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff;padding:54px 0}
.page-hero h1{color:#fff;margin:0 0 .3em;font-size:clamp(1.8rem,4vw,2.6rem)}
.page-hero p{color:#d6e2f0;max-width:70ch;margin:0}
.breadcrumb{font-size:.85rem;margin-bottom:14px;color:#a9bdd3}
.breadcrumb a{color:#cfe0f2}

/* Buttons */
.btn{display:inline-block;padding:13px 24px;border-radius:8px;font-weight:700;text-decoration:none;border:2px solid transparent;cursor:pointer;font:inherit;font-weight:700;transition:.15s}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:var(--teal-dark);color:#fff}
.btn-outline{border-color:#fff;color:#fff}
.btn-outline:hover{background:#fff;color:var(--navy)}
.btn-dark{border-color:var(--navy);color:var(--navy)}
.btn-dark:hover{background:var(--navy);color:#fff}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:1.4em}

/* Sections */
section.block{padding:72px 0}
section.alt{background:var(--mist)}
.section-head{max-width:720px;margin-bottom:36px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:.15s}
.card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.card .body{padding:20px;display:flex;flex-direction:column;flex:1}
.card .body p{color:var(--muted);flex:1}
.card img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--mist)}
.card h3 a{text-decoration:none;color:var(--navy)}
.card .more{font-weight:700;text-decoration:none}
.tag{display:inline-block;background:var(--steel-light);color:var(--navy);font-size:.75rem;font-weight:700;border-radius:99px;padding:3px 10px;margin-bottom:10px;align-self:flex-start}
.notice{background:#fff7e6;border:1px solid #f1d49a;border-left:5px solid var(--amber);border-radius:8px;padding:14px 18px;margin:0 0 24px;font-size:.93rem;color:#5b4210}
.placeholder{background:#fff7e6;border-bottom:2px dashed var(--amber);padding:0 4px;border-radius:3px;font-weight:600}
.topbar .placeholder,.site-footer .placeholder{background:#fff7e6;color:#5b4210;border-bottom:0;padding:0 6px}
.icon-box{padding:26px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.icon-box .ico{width:46px;height:46px;border-radius:12px;background:var(--steel-light);display:grid;place-items:center;margin-bottom:14px}
.icon-box .ico svg{width:24px;height:24px;stroke:var(--navy);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.steps{counter-reset:s;list-style:none;margin:0;padding:0;display:grid;gap:18px}
.steps li{counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 20px 20px 74px;position:relative}
.steps li::before{content:counter(s);position:absolute;left:20px;top:18px;width:38px;height:38px;border-radius:50%;background:var(--navy);color:#fff;font-weight:700;display:grid;place-items:center}
.steps li strong{display:block;color:var(--navy);margin-bottom:2px}
.cta-band{background:var(--navy);color:#fff;padding:56px 0;text-align:center}
.cta-band h2{color:#fff}
.cta-band p{color:#cfdbea;max-width:60ch;margin:0 auto 1.2em}

/* Product catalogue */
.filter-bar{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-bottom:28px}
.filter-bar input,.filter-bar select{padding:11px 14px;border:1px solid var(--line);border-radius:8px;font:inherit;background:#fff;min-width:220px}
.filter-count{color:var(--muted);font-size:.92rem;margin-left:auto}
.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.product-detail img{border:1px solid var(--line);border-radius:var(--radius);background:var(--mist)}
table.specs{width:100%;border-collapse:collapse;margin:1em 0 1.4em}
table.specs th,table.specs td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:top}
table.specs th{width:38%;background:var(--mist);color:var(--navy)}

/* Forms */
.form{display:grid;gap:18px}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form label{display:block;font-weight:600;color:var(--navy);margin-bottom:6px;font-size:.93rem}
.form input,.form select,.form textarea{width:100%;padding:12px 14px;border:1px solid #b9c5d2;border-radius:8px;font:inherit;background:#fff}
.form textarea{min-height:140px;resize:vertical}
.form .req{color:#b42318}
.form .hint{font-size:.82rem;color:var(--muted);margin-top:4px}
.form .check{display:flex;gap:10px;align-items:flex-start}
.form .check input{width:auto;margin-top:5px}
.form .check label{font-weight:400;margin:0}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}
.form-status{padding:14px 18px;border-radius:8px;display:none;font-weight:600}
.form-status.show{display:block}
.form-status.info{background:#fff7e6;border:1px solid #f1d49a;color:#5b4210}
.form-status.ok{background:#e7f6ef;border:1px solid #9bd5b6;color:#0d5a34}
.form-status.err{background:#fdecea;border:1px solid #f0aaa4;color:#8a1c14}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px}

/* Footer */
.site-footer{background:#07182f;color:#b8c7d9;padding:56px 0 0}
.site-footer h3{color:#fff;font-size:1rem;text-transform:uppercase;letter-spacing:.08em}
.site-footer a{color:#cfe0f2;text-decoration:none}
.site-footer a:hover{color:#fff;text-decoration:underline}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:8px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding:18px 0;font-size:.85rem;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}

@media (max-width:980px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero .container{grid-template-columns:1fr}
  .product-detail{grid-template-columns:1fr}
}
@media (max-width:820px){
  .nav-toggle{display:block}
  .site-nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);padding:10px 20px 18px;box-shadow:var(--shadow)}
  .site-nav.open{display:block}
  .nav-list{flex-direction:column;align-items:stretch}
  .sub{display:block;position:static;border:0;box-shadow:none;padding:0 0 0 14px;min-width:0}
}
@media (max-width:640px){
  .grid-2,.grid-3,.grid-4,.form .row,.footer-grid{grid-template-columns:1fr}
  section.block{padding:52px 0}
  .filter-count{margin-left:0}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.site-header,.topbar,.site-footer,.cta-band{display:none}}