/* ============================================================
   Oshe Accessories — shared stylesheet
   Design direction: minimal industrial (Polkom-inspired)
   White base, generous whitespace, typographic hierarchy,
   no shadows/gradients, thin rules, restrained accent.
   ============================================================ */

:root{
  --ink:#16181c;
  --ink-2:#3a3f47;
  --muted:#6e747d;
  --line:#e2e4e7;
  --line-dark:#c9ccd1;
  --bg:#ffffff;
  --bg-soft:#f6f7f8;
  --bg-deep:#12141a;
  --accent:#b3502a;          /* warm rust — industrial, not corporate blue */
  --accent-soft:#f7ede8;
  --maxw:1240px;
  --pad:clamp(20px,4vw,48px);
  --sans:"Inter","Segoe UI","Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  font-family:var(--sans);
  color:var(--ink);
  background:var(--bg);
  line-height:1.62;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{list-style:none;}
button{font-family:inherit;cursor:pointer;}

.container{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad);}
.narrow{max-width:860px;margin:0 auto;padding:0 var(--pad);}

/* ---------- type ---------- */
h1,h2,h3,h4{font-weight:600;letter-spacing:-0.02em;line-height:1.18;color:var(--ink);}
h1{font-size:clamp(30px,4.6vw,54px);font-weight:600;letter-spacing:-0.03em;}
h2{font-size:clamp(24px,3vw,36px);}
h3{font-size:clamp(17px,1.5vw,20px);}
.eyebrow{
  display:block;font-size:12px;font-weight:600;letter-spacing:0.14em;
  text-transform:uppercase;color:var(--muted);margin-bottom:18px;
}
.lead{font-size:clamp(15px,1.4vw,18px);color:var(--ink-2);line-height:1.7;}
.muted{color:var(--muted);}
.small{font-size:13.5px;}

/* ---------- section rhythm ---------- */
.section{padding:clamp(56px,7vw,100px) 0;}
.section--soft{background:var(--bg-soft);}
.section--dark{background:var(--bg-deep);color:#e8e9ec;}
.section--dark h2,.section--dark h3{color:#fff;}
.section--dark .eyebrow{color:#9aa0aa;}
.section--dark .lead{color:#b6bac1;}
.section-head{max-width:760px;margin-bottom:clamp(36px,4vw,60px);}
.section-head .lead{margin-top:16px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:14px 26px;font-size:14.5px;font-weight:600;
  border:1px solid var(--ink);background:var(--ink);color:#fff;
  border-radius:2px;transition:background .18s,border-color .18s,color .18s;
  letter-spacing:0.01em;
}
.btn:hover{background:#000;}
.btn--outline{background:transparent;color:var(--ink);}
.btn--outline:hover{background:var(--ink);color:#fff;}
.btn--light{background:#fff;color:var(--ink);border-color:#fff;}
.btn--light:hover{background:#e9eaec;}
.btn--ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.4);}
.btn--ghost-light:hover{background:#fff;color:var(--ink);border-color:#fff;}
.btn--sm{padding:10px 18px;font-size:13.5px;}

.link-arrow{
  display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;
  border-bottom:1px solid var(--ink);padding-bottom:2px;
}
.link-arrow:hover{color:var(--accent);border-color:var(--accent);}

/* ---------- top bar ---------- */
.topbar{
  background:var(--bg-deep);color:#b6bac1;font-size:12.5px;
  padding:9px 0;letter-spacing:0.02em;
}
.topbar .container{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.topbar a:hover{color:#fff;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px;}
.brand{display:flex;align-items:baseline;gap:9px;font-size:22px;font-weight:700;letter-spacing:-0.02em;}
.brand em{font-style:normal;color:var(--accent);}
.brand small{
  font-size:10.5px;font-weight:600;letter-spacing:0.16em;text-transform:uppercase;
  color:var(--muted);padding-left:9px;border-left:1px solid var(--line-dark);
}
.nav-links{display:flex;gap:clamp(16px,2.2vw,34px);font-size:14.5px;font-weight:500;}
.nav-links a{color:var(--ink-2);padding:6px 0;border-bottom:1px solid transparent;}
.nav-links a:hover{color:var(--ink);border-color:var(--ink);}
.nav-actions{display:flex;align-items:center;gap:14px;}
.menu-toggle{display:none;background:none;border:0;font-size:22px;line-height:1;}

/* ---------- hero ---------- */
.hero{padding:clamp(52px,7vw,96px) 0 clamp(44px,5vw,72px);border-bottom:1px solid var(--line);}
.hero-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:clamp(32px,5vw,72px);align-items:start;}
.hero h1{max-width:15ch;}
.hero .lead{margin-top:24px;max-width:56ch;}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:34px;}

/* stats row — plain, no cards */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);margin-top:clamp(40px,5vw,64px);}
.stat{padding:26px 24px 0 0;}
.stat + .stat{padding-left:24px;border-left:1px solid var(--line);}
.stat b{display:block;font-size:clamp(22px,2.4vw,30px);font-weight:600;letter-spacing:-0.02em;}
.stat span{display:block;font-size:12.5px;color:var(--muted);margin-top:5px;line-height:1.45;}

/* side note card in hero */
.hero-aside{border-left:1px solid var(--line);padding-left:clamp(20px,2.5vw,32px);}
.hero-aside h3{font-size:13px;letter-spacing:0.12em;text-transform:uppercase;color:var(--muted);font-weight:600;}
.hero-aside ul{margin-top:18px;}
.hero-aside li{
  font-size:13.5px;color:var(--ink-2);padding:11px 0;border-bottom:1px solid var(--line);
  display:flex;gap:10px;align-items:flex-start;
}
.hero-aside li:last-child{border-bottom:0;}
.hero-aside li::before{content:"—";color:var(--accent);flex:none;}

/* ---------- product grid ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2.4vw,32px);}
.prod{border:1px solid var(--line);background:#fff;transition:border-color .18s;}
.prod:hover{border-color:var(--line-dark);}
.prod-media{
  aspect-ratio:4/3;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;
  font-size:44px;color:#b8bec6;border-bottom:1px solid var(--line);overflow:hidden;
}
.prod-body{padding:clamp(18px,2vw,26px);}
.prod-body h3{font-size:18px;margin-bottom:8px;}
.prod-body p{font-size:13.5px;color:var(--muted);line-height:1.6;}
.prod-meta{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  font-size:11.5px;letter-spacing:0.08em;text-transform:uppercase;color:var(--muted);
  display:flex;justify-content:space-between;gap:10px;
}

/* ---------- verify / compliance block ---------- */
.verify{background:var(--bg-deep);color:#e8e9ec;}
.verify-top{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px);align-items:start;}
.verify h2{color:#fff;max-width:18ch;}
.verify .lead{margin-top:18px;color:#b6bac1;}
.cert-list{border-top:1px solid rgba(255,255,255,.16);}
.cert-item{
  display:flex;align-items:flex-start;gap:18px;padding:20px 0;
  border-bottom:1px solid rgba(255,255,255,.16);
}
.cert-badge{
  flex:none;width:76px;height:52px;border:1px solid rgba(255,255,255,.28);
  display:flex;align-items:center;justify-content:center;
  font-size:10px;font-weight:700;letter-spacing:0.06em;text-align:center;
  line-height:1.25;color:#fff;padding:4px;
}
.cert-text h4{font-size:14.5px;color:#fff;font-weight:600;margin-bottom:4px;}
.cert-text p{font-size:13px;color:#9aa0aa;line-height:1.55;}

.verify-note{
  margin-top:36px;padding:24px 26px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.04);
}
.verify-note h4{font-size:13px;letter-spacing:0.1em;text-transform:uppercase;color:#fff;margin-bottom:10px;}
.verify-note p{font-size:13.5px;color:#a8adb6;line-height:1.7;}

.doc-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.doc-links a{
  font-size:12.5px;padding:9px 16px;border:1px solid rgba(255,255,255,.28);color:#e8e9ec;
}
.doc-links a:hover{background:#fff;color:var(--ink);border-color:#fff;}

/* ---------- process steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);}
.step{padding:30px 26px 0 0;}
.step + .step{padding-left:26px;border-left:1px solid var(--line);}
.step-num{
  font-family:var(--serif);font-size:13px;letter-spacing:0.1em;color:var(--accent);
  font-weight:600;display:block;margin-bottom:14px;
}
.step h3{font-size:16.5px;margin-bottom:8px;}
.step p{font-size:13.5px;color:var(--muted);line-height:1.6;}

/* ---------- why us / value list ---------- */
.value-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 clamp(32px,4vw,64px);}
.value{padding:26px 0;border-bottom:1px solid var(--line);}
.value h3{font-size:17px;margin-bottom:8px;}
.value p{font-size:14px;color:var(--muted);line-height:1.65;}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);}
.faq details{border-bottom:1px solid var(--line);}
.faq summary{
  list-style:none;cursor:pointer;padding:22px 40px 22px 0;position:relative;
  font-size:16px;font-weight:500;color:var(--ink);line-height:1.5;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{
  content:"+";position:absolute;right:6px;top:22px;font-size:20px;
  color:var(--muted);font-weight:400;line-height:1;
}
.faq details[open] summary::after{content:"−";}
.faq .answer{padding:0 40px 24px 0;font-size:14.5px;color:var(--ink-2);line-height:1.75;max-width:78ch;}
.faq .answer p + p{margin-top:12px;}

/* ---------- blog ---------- */
.post-list{border-top:1px solid var(--line);}
.post{
  display:grid;grid-template-columns:150px 1fr auto;gap:clamp(18px,3vw,40px);
  padding:26px 0;border-bottom:1px solid var(--line);align-items:baseline;
}
.post-tag{font-size:11.5px;letter-spacing:0.1em;text-transform:uppercase;color:var(--accent);font-weight:600;}
.post h3{font-size:17px;margin-bottom:6px;font-weight:600;}
.post p{font-size:13.5px;color:var(--muted);}
.post-date{font-size:12.5px;color:var(--muted);white-space:nowrap;}
.post:hover h3{color:var(--accent);}

/* ---------- contact / form ---------- */
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(32px,5vw,72px);align-items:start;}
.contact-info div{padding:15px 0;border-bottom:1px solid var(--line);font-size:14px;}
.contact-info b{display:block;font-size:11.5px;letter-spacing:0.1em;text-transform:uppercase;color:var(--muted);margin-bottom:4px;font-weight:600;}

form{background:transparent;}
.field{margin-bottom:18px;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
label{display:block;font-size:12px;letter-spacing:0.08em;text-transform:uppercase;color:var(--muted);margin-bottom:7px;font-weight:600;}
input,select,textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line-dark);background:#fff;
  font-size:14.5px;font-family:inherit;color:var(--ink);border-radius:2px;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--ink);}
textarea{resize:vertical;min-height:110px;}
.form-note{font-size:12.5px;color:var(--muted);margin-top:14px;line-height:1.6;}
.hp{position:absolute;left:-9999px;}

/* ---------- CTA band ---------- */
.cta-band{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.cta-band .inner{
  display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap;
  padding:clamp(34px,4vw,52px) 0;
}
.cta-band h2{font-size:clamp(20px,2.4vw,28px);max-width:24ch;}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-deep);color:#9aa0aa;padding:clamp(48px,5vw,72px) 0 0;font-size:13.5px;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:clamp(24px,3vw,48px);}
.site-footer h4{font-size:11.5px;letter-spacing:0.12em;text-transform:uppercase;color:#fff;margin-bottom:16px;font-weight:600;}
.site-footer li{padding:6px 0;}
.site-footer a:hover{color:#fff;}
.foot-brand .brand{color:#fff;font-size:20px;margin-bottom:14px;}
.foot-brand p{max-width:34ch;line-height:1.7;}
.foot-bottom{
  margin-top:clamp(36px,4vw,56px);padding:20px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:#6e747d;
}

/* ---------- floating contact ---------- */
.float{position:fixed;right:18px;bottom:20px;display:flex;flex-direction:column;gap:9px;z-index:200;}
.float a{
  width:48px;height:48px;border:1px solid var(--line-dark);background:#fff;
  display:flex;align-items:center;justify-content:center;font-size:18px;
  border-radius:50%;color:var(--ink);transition:background .18s,color .18s;
}
.float a:hover{background:var(--ink);color:#fff;border-color:var(--ink);}

/* ---------- breadcrumb / page hero ---------- */
.crumb{font-size:12.5px;color:var(--muted);padding:18px 0;}
.crumb a:hover{color:var(--ink);}
.page-hero{padding:clamp(30px,4vw,52px) 0 clamp(36px,4vw,56px);border-bottom:1px solid var(--line);}
.page-hero h1{font-size:clamp(26px,3.6vw,42px);max-width:20ch;}
.page-hero .lead{margin-top:18px;max-width:62ch;}

/* spec table */
.spec-table{width:100%;border-collapse:collapse;font-size:14px;}
.spec-table th,.spec-table td{border-bottom:1px solid var(--line);padding:13px 0;text-align:left;vertical-align:top;}
.spec-table th{width:38%;color:var(--muted);font-weight:500;padding-right:20px;font-size:13px;}
.spec-table tr:first-child th,.spec-table tr:first-child td{border-top:1px solid var(--line);}

.two-col{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(32px,5vw,64px);align-items:start;}
.two-col h2{font-size:22px;margin-bottom:16px;}
.two-col p{font-size:14.5px;color:var(--ink-2);line-height:1.75;margin-bottom:14px;}

.ticks li{
  font-size:14px;color:var(--ink-2);padding:9px 0 9px 22px;position:relative;
  border-bottom:1px solid var(--line);
}
.ticks li::before{content:"—";position:absolute;left:0;color:var(--accent);}

.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag-row span{font-size:12.5px;padding:6px 13px;border:1px solid var(--line-dark);color:var(--ink-2);}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;}
  .hero-aside{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:28px;}
  .verify-top{grid-template-columns:1fr;}
  .prod-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step{padding:26px 20px 0 0;}
  .step:nth-child(odd){padding-left:0;border-left:0;}
  .step:nth-child(even){padding-left:20px;}
  .contact-grid{grid-template-columns:1fr;}
  .two-col{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:720px){
  .nav{height:62px;}
  .nav-links{display:none;}
  .menu-toggle{display:block;}
  .topbar .container{font-size:11.5px;}
  .stats{grid-template-columns:1fr 1fr;}
  .stat{padding:20px 16px 0 0;}
  .stat:nth-child(odd){padding-left:0;border-left:0;}
  .stat:nth-child(even){padding-left:16px;}
  .stat:nth-child(3),.stat:nth-child(4){border-top:1px solid var(--line);margin-top:16px;}
  .prod-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .step,.step:nth-child(even){padding-left:0;border-left:0;padding-top:24px;}
  .step + .step{border-top:1px solid var(--line);}
  .value-grid{grid-template-columns:1fr;}
  .post{grid-template-columns:1fr;gap:8px;}
  .post-date{order:-1;}
  .field-row{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;}
  .cta-band .inner{flex-direction:column;align-items:flex-start;}
}