/* ==========================================================================
   Zenith Nutra Products — public stylesheet
   Palette: golden dark brown + blackish dark navy
   ========================================================================== */

:root {
  --navy-950:#070E1A;
  --navy-900:#0A1424;
  --navy-850:#0C1A2E;
  --navy-800:#0F1E36;
  --navy-700:#172C4B;
  --navy-600:#223B62;

  --gold-200:#EFDCB4;
  --gold-300:#E3C88B;
  --gold-400:#D4AF6A;
  --gold-500:#C19A4B;
  --gold-600:#A67C33;

  --brown-900:#241809;
  --brown-800:#3A2812;
  --brown-700:#55381C;

  --cream-50:#FBF9F5;
  --cream-100:#F5F1E9;
  --cream-200:#EAE3D6;
  --cream-300:#DBD1BE;

  --ink:#141C28;
  --body:#39434F;
  --muted:#6B7686;

  --serif:'Iowan Old Style','Palatino Linotype',Palatino,Georgia,'Times New Roman',serif;
  --sans:-apple-system,BlinkMacSystemFont,'Segoe UI','Helvetica Neue',Arial,sans-serif;

  --wrap:1180px;
  --radius:3px;
  --shadow-sm:0 1px 2px rgba(10,20,36,.06),0 2px 8px rgba(10,20,36,.05);
  --shadow-md:0 4px 12px rgba(10,20,36,.08),0 12px 32px rgba(10,20,36,.07);
  --shadow-lg:0 12px 40px rgba(10,20,36,.14);
  --t:200ms cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after { box-sizing:border-box; }

html { -webkit-text-size-adjust:100%; scroll-behavior:smooth; }

body {
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.72;
  color:var(--body);
  background:var(--cream-50);
  -webkit-font-smoothing:antialiased;
}

img { max-width:100%; height:auto; display:block; }

a { color:var(--brown-700); text-decoration:none; transition:color var(--t); }
a:hover { color:var(--gold-600); }

h1,h2,h3,h4 { font-family:var(--serif); color:var(--ink); font-weight:600; line-height:1.22; margin:0 0 .55em; letter-spacing:-.011em; }
h1 { font-size:clamp(2.1rem,4.4vw,3.35rem); }
h2 { font-size:clamp(1.6rem,2.9vw,2.3rem); }
h3 { font-size:clamp(1.18rem,1.9vw,1.45rem); }
h4 { font-size:1.06rem; }
p  { margin:0 0 1.15em; }

ul,ol { margin:0 0 1.15em; padding-left:1.35em; }
li { margin-bottom:.42em; }

hr { border:0; border-top:1px solid var(--cream-200); margin:2.5rem 0; }

::selection { background:var(--gold-300); color:var(--navy-900); }

:focus-visible { outline:2px solid var(--gold-500); outline-offset:3px; }

.wrap { max-width:var(--wrap); margin:0 auto; padding:0 24px; }
.wrap-narrow { max-width:800px; margin:0 auto; padding:0 24px; }

.skip-link {
  position:absolute; left:-9999px; top:0; z-index:200;
  background:var(--gold-500); color:var(--navy-900); padding:12px 20px; font-weight:600;
}
.skip-link:focus { left:0; }

/* ---------- Utility ---------- */
.eyebrow {
  font-family:var(--sans); font-size:.7rem; font-weight:700;
  letter-spacing:.19em; text-transform:uppercase; color:var(--gold-600);
  margin:0 0 .9rem; display:block;
}
.eyebrow-light { color:var(--gold-400); }
.lede { font-size:1.14rem; line-height:1.68; color:var(--body); }
.muted { color:var(--muted); }
.center { text-align:center; }
.mt0{margin-top:0}.mb0{margin-bottom:0}

.rule-gold {
  width:56px; height:2px; background:var(--gold-500); border:0; margin:0 0 1.6rem;
}
.center .rule-gold { margin-left:auto; margin-right:auto; }

/* ---------- Buttons ---------- */
.btn {
  display:inline-block; font-family:var(--sans); font-size:.86rem; font-weight:600;
  letter-spacing:.07em; text-transform:uppercase; padding:15px 32px;
  border:1px solid transparent; border-radius:var(--radius); cursor:pointer;
  transition:all var(--t); text-align:center; line-height:1.2;
}
.btn-primary { background:var(--gold-500); color:var(--navy-900); border-color:var(--gold-500); }
.btn-primary:hover { background:var(--gold-400); border-color:var(--gold-400); color:var(--navy-900); transform:translateY(-1px); box-shadow:var(--shadow-md); }
.btn-outline { background:transparent; color:var(--gold-300); border-color:rgba(212,175,106,.5); }
.btn-outline:hover { background:rgba(212,175,106,.1); border-color:var(--gold-400); color:var(--gold-200); }
.btn-dark { background:var(--navy-800); color:var(--cream-100); border-color:var(--navy-800); }
.btn-dark:hover { background:var(--navy-700); color:#fff; transform:translateY(-1px); box-shadow:var(--shadow-md); }
.btn-ghost { background:transparent; color:var(--brown-700); border-color:var(--cream-300); }
.btn-ghost:hover { border-color:var(--gold-500); color:var(--gold-600); background:#fff; }
.btn-sm { padding:10px 20px; font-size:.76rem; }
.btn-block { display:block; width:100%; }

/* ---------- Header ---------- */
.site-header {
  background:var(--navy-900);
  border-bottom:1px solid rgba(212,175,106,.18);
  position:sticky; top:0; z-index:100;
}
.topbar {
  background:var(--navy-950); color:#9DAABF;
  font-size:.78rem; letter-spacing:.02em;
  border-bottom:1px solid rgba(255,255,255,.05);
}
.topbar .wrap { display:flex; justify-content:space-between; align-items:center; gap:16px; min-height:38px; flex-wrap:wrap; }
.topbar a { color:#B9C5D8; }
.topbar a:hover { color:var(--gold-400); }
.topbar-certs { color:var(--gold-500); font-weight:600; letter-spacing:.1em; text-transform:uppercase; font-size:.68rem; }

.header-inner { display:flex; align-items:center; justify-content:space-between; gap:28px; min-height:78px; }

.brand { display:flex; align-items:center; gap:13px; flex-shrink:0; }
.brand-mark {
  width:42px; height:42px; flex-shrink:0;
  border:1.5px solid var(--gold-500); border-radius:50%;
  display:grid; place-items:center;
  font-family:var(--serif); font-size:1.15rem; font-weight:700; color:var(--gold-400);
  background:linear-gradient(140deg,var(--navy-800),var(--brown-900));
}
.brand-text { display:flex; flex-direction:column; line-height:1.1; }
.brand-name { font-family:var(--serif); font-size:1.24rem; font-weight:600; color:var(--cream-100); letter-spacing:.005em; }
.brand-tag { font-size:.63rem; letter-spacing:.17em; text-transform:uppercase; color:var(--gold-500); margin-top:3px; }

.main-nav { display:flex; align-items:center; gap:4px; }
.main-nav a {
  color:#C6D1E2; font-size:.87rem; font-weight:500; padding:10px 14px;
  letter-spacing:.02em; border-radius:var(--radius); position:relative;
}
.main-nav a:hover, .main-nav a[aria-current] { color:var(--gold-300); }
.main-nav a[aria-current]::after {
  content:''; position:absolute; left:14px; right:14px; bottom:2px;
  height:1.5px; background:var(--gold-500);
}
.nav-cta { margin-left:10px; }

/* Dropdown */
.has-drop { position:relative; }
.drop {
  position:absolute; top:100%; left:0; min-width:280px;
  background:var(--navy-850); border:1px solid rgba(212,175,106,.2);
  box-shadow:var(--shadow-lg); padding:8px; border-radius:var(--radius);
  opacity:0; visibility:hidden; transform:translateY(-6px);
  transition:all var(--t); z-index:120;
}
.has-drop:hover .drop, .has-drop:focus-within .drop { opacity:1; visibility:visible; transform:translateY(0); }
.drop a { display:block; padding:10px 14px; font-size:.85rem; color:#C6D1E2; border-radius:2px; }
.drop a:hover { background:rgba(212,175,106,.1); color:var(--gold-300); }
.drop a small { display:block; font-size:.72rem; color:#7C8AA0; margin-top:2px; }

.nav-toggle {
  display:none; background:none; border:1px solid rgba(212,175,106,.35);
  color:var(--gold-400); font-size:1.35rem; line-height:1; padding:8px 13px;
  border-radius:var(--radius); cursor:pointer;
}

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(ellipse at 12% 0%, rgba(85,56,28,.55) 0%, transparent 55%),
    radial-gradient(ellipse at 88% 90%, rgba(193,154,75,.14) 0%, transparent 50%),
    linear-gradient(165deg,var(--navy-900) 0%,var(--navy-950) 60%,var(--brown-900) 145%);
  color:var(--cream-100);
  padding:clamp(64px,9vw,118px) 0 clamp(56px,8vw,100px);
  position:relative; overflow:hidden;
}
.hero::after {
  content:''; position:absolute; inset:0;
  background-image:linear-gradient(rgba(212,175,106,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(212,175,106,.055) 1px,transparent 1px);
  background-size:64px 64px; pointer-events:none;
}
.hero .wrap { position:relative; z-index:2; }
.hero-grid { display:grid; grid-template-columns:1.12fr .88fr; gap:60px; align-items:center; }
.hero h1 { color:var(--cream-50); margin-bottom:.42em; }
.hero h1 em { font-style:normal; color:var(--gold-400); }
.hero-sub { font-size:1.13rem; line-height:1.72; color:#BFCADB; max-width:60ch; margin-bottom:2rem; }
.hero-actions { display:flex; gap:14px; flex-wrap:wrap; margin-bottom:2.4rem; }
.hero-stats { display:flex; gap:38px; flex-wrap:wrap; padding-top:1.8rem; border-top:1px solid rgba(212,175,106,.22); }
.hero-stat strong { display:block; font-family:var(--serif); font-size:1.85rem; color:var(--gold-400); line-height:1.1; }
.hero-stat span { font-size:.75rem; letter-spacing:.13em; text-transform:uppercase; color:#8C9AB1; }
.hero-visual { position:relative; }
.hero-visual img { border:1px solid rgba(212,175,106,.3); box-shadow:var(--shadow-lg); border-radius:var(--radius); }

/* ---------- Sections ---------- */
.section { padding:clamp(56px,7.5vw,96px) 0; }
.section-tight { padding:clamp(40px,5vw,64px) 0; }
.section-cream { background:var(--cream-100); }
.section-dark { background:var(--navy-900); color:#BFCADB; }
.section-dark h1,.section-dark h2,.section-dark h3 { color:var(--cream-50); }
.section-dark .lede { color:#BFCADB; }

.section-head { max-width:760px; margin-bottom:3rem; }
.section-head.center { margin-left:auto; margin-right:auto; }

/* ---------- Cards grid ---------- */
.grid { display:grid; gap:26px; }
.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(--cream-200); border-radius:var(--radius);
  overflow:hidden; display:flex; flex-direction:column;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  position:relative;
}
.card::before {
  content:''; position:absolute; top:0; left:0; right:0; height:2px;
  background:var(--gold-500); transform:scaleX(0); transform-origin:left;
  transition:transform 260ms cubic-bezier(.4,0,.2,1); z-index:3;
}
.card:hover { transform:translateY(-3px); box-shadow:var(--shadow-md); border-color:var(--cream-300); }
.card:hover::before { transform:scaleX(1); }
.card-media { position:relative; background:var(--navy-900); aspect-ratio:4/3; overflow:hidden; }
.card-media img { width:100%; height:100%; object-fit:cover; transition:transform 420ms cubic-bezier(.4,0,.2,1); }
.card:hover .card-media img { transform:scale(1.035); }
.card-body { padding:22px 24px 26px; flex:1; display:flex; flex-direction:column; }
.card-cat { font-size:.67rem; letter-spacing:.15em; text-transform:uppercase; color:var(--gold-600); font-weight:700; margin-bottom:.55rem; }
.card h3 { font-size:1.13rem; margin-bottom:.5rem; line-height:1.32; }
.card h3 a { color:var(--ink); }
.card:hover h3 a { color:var(--brown-700); }
.card p { font-size:.9rem; line-height:1.62; color:var(--muted); margin-bottom:1rem; }
.card-foot { margin-top:auto; display:flex; align-items:center; justify-content:space-between; gap:12px; padding-top:14px; border-top:1px solid var(--cream-200); }
.card-meta { font-size:.74rem; color:var(--muted); letter-spacing:.04em; }
.card-link { font-size:.79rem; font-weight:600; letter-spacing:.07em; text-transform:uppercase; color:var(--brown-700); }
.card-link::after { content:' →'; transition:transform var(--t); display:inline-block; }
.card:hover .card-link::after { transform:translateX(3px); }

.badge-corner {
  position:absolute; top:12px; left:12px; z-index:2;
  background:var(--gold-500); color:var(--navy-900);
  font-size:.64rem; font-weight:700; letter-spacing:.12em; text-transform:uppercase;
  padding:5px 11px; border-radius:2px;
}

/* ---------- Category tiles ---------- */
.cat-tile {
  position:relative; display:block; overflow:hidden; border-radius:var(--radius);
  background:var(--navy-900); min-height:270px; color:#fff;
  border:1px solid rgba(212,175,106,.22);
}
.cat-tile img { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; opacity:.5; transition:transform 480ms,opacity var(--t); }
.cat-tile:hover img { transform:scale(1.05); opacity:.62; }
.cat-tile-body {
  position:relative; z-index:2; padding:30px 28px; height:100%;
  display:flex; flex-direction:column; justify-content:flex-end; min-height:270px;
  background:linear-gradient(to top,rgba(7,14,26,.94) 12%,rgba(7,14,26,.55) 55%,rgba(7,14,26,.2) 100%);
}
.cat-tile h3 { color:var(--cream-50); margin-bottom:.35rem; font-size:1.3rem; }
.cat-tile p { color:#B8C4D6; font-size:.87rem; margin-bottom:.9rem; line-height:1.55; }
.cat-tile .card-link { color:var(--gold-400); }
.cat-tile-count { font-size:.7rem; letter-spacing:.14em; text-transform:uppercase; color:var(--gold-500); margin-bottom:.5rem; }

/* ---------- USP strip ---------- */
.usp-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:0; border:1px solid var(--cream-200); background:#fff; }
.usp { padding:34px 30px; border-right:1px solid var(--cream-200); }
.usp:last-child { border-right:0; }
.usp-num { font-family:var(--serif); font-size:.95rem; color:var(--gold-500); margin-bottom:.85rem; letter-spacing:.1em; }
.usp h3 { font-size:1.03rem; margin-bottom:.5rem; }
.usp p { font-size:.87rem; color:var(--muted); margin:0; line-height:1.62; }

/* ---------- Product detail ---------- */
.breadcrumbs { font-size:.79rem; color:var(--muted); padding:20px 0; letter-spacing:.02em; }
.breadcrumbs a { color:var(--muted); }
.breadcrumbs a:hover { color:var(--gold-600); }
.breadcrumbs span { margin:0 8px; opacity:.5; }

.product-hero { display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:start; padding-bottom:24px; }
.product-gallery { position:sticky; top:110px; }
.product-main-img { border:1px solid var(--cream-200); border-radius:var(--radius); overflow:hidden; background:var(--navy-900); }
.product-thumbs { display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-top:12px; }
.product-thumbs figure { margin:0; border:1px solid var(--cream-200); border-radius:var(--radius); overflow:hidden; background:var(--navy-900); }
.product-thumbs figcaption {
  font-size:.66rem; letter-spacing:.09em; text-transform:uppercase; color:var(--muted);
  padding:7px 9px; background:#fff; text-align:center; border-top:1px solid var(--cream-200);
}

.product-title { margin-bottom:.4em; }
.product-short { font-size:1.08rem; line-height:1.68; color:var(--body); margin-bottom:1.6rem; }
.product-quickfacts {
  border:1px solid var(--cream-200); background:#fff; border-radius:var(--radius);
  padding:6px 22px; margin-bottom:1.7rem;
}
.qf-row { display:flex; gap:18px; padding:12px 0; border-bottom:1px solid var(--cream-100); font-size:.9rem; }
.qf-row:last-child { border-bottom:0; }
.qf-row dt { flex:0 0 168px; color:var(--muted); font-size:.82rem; letter-spacing:.04em; text-transform:uppercase; font-weight:600; }
.qf-row dd { margin:0; color:var(--ink); flex:1; }

.product-actions { display:flex; gap:13px; flex-wrap:wrap; margin-bottom:1.5rem; }
.cert-chips { display:flex; flex-wrap:wrap; gap:7px; }
.chip {
  font-size:.72rem; letter-spacing:.05em; padding:5px 12px;
  background:var(--cream-100); border:1px solid var(--cream-200);
  border-radius:100px; color:var(--brown-700);
}

/* Spec table */
.spec-table { border:1px solid var(--cream-200); background:#fff; border-radius:var(--radius); overflow:hidden; }
.spec-row { display:flex; border-bottom:1px solid var(--cream-100); }
.spec-row:last-child { border-bottom:0; }
.spec-row:nth-child(odd) { background:var(--cream-50); }
.spec-row dt { flex:0 0 44%; padding:13px 20px; font-weight:600; color:var(--ink); font-size:.89rem; }
.spec-row dd { flex:1; margin:0; padding:13px 20px; color:var(--body); font-size:.89rem; border-left:1px solid var(--cream-100); }

.prose h2 { margin-top:2.2rem; font-size:1.5rem; }
.prose h3 { margin-top:1.7rem; }
.prose > *:first-child { margin-top:0; }
.prose ul li::marker { color:var(--gold-500); }

.tabs-panels { margin-top:2.6rem; }
.panel { margin-bottom:2.8rem; }
.panel > h2 {
  font-size:1.36rem; padding-bottom:.55rem; margin-bottom:1.2rem;
  border-bottom:1px solid var(--cream-200); position:relative;
}
.panel > h2::after { content:''; position:absolute; bottom:-1px; left:0; width:54px; height:2px; background:var(--gold-500); }

.app-list { list-style:none; padding:0; display:grid; grid-template-columns:repeat(2,1fr); gap:11px; }
.app-list li { padding-left:26px; position:relative; font-size:.93rem; margin:0; }
.app-list li::before {
  content:''; position:absolute; left:0; top:.62em; width:9px; height:9px;
  border:1.5px solid var(--gold-500); transform:rotate(45deg);
}

/* Key facts (AEO block) */
.key-facts {
  background:linear-gradient(150deg,var(--navy-900),var(--navy-850));
  border:1px solid rgba(212,175,106,.28); border-radius:var(--radius);
  padding:26px 30px; margin:2rem 0; color:#C6D1E2;
}
.key-facts .kf-title {
  font-size:.72rem; letter-spacing:.18em; text-transform:uppercase;
  color:var(--gold-400); margin-bottom:1rem; font-family:var(--sans); font-weight:700;
}
.key-facts dl { margin:0; display:grid; grid-template-columns:repeat(2,1fr); gap:14px 30px; }
.key-facts dt { font-size:.71rem; letter-spacing:.11em; text-transform:uppercase; color:#8798AF; margin-bottom:3px; }
.key-facts dd { margin:0; color:var(--cream-100); font-size:.93rem; line-height:1.5; }

/* ---------- FAQ ---------- */
.faq-list { border-top:1px solid var(--cream-200); }
.faq-item { border-bottom:1px solid var(--cream-200); }
.faq-item summary {
  cursor:pointer; padding:20px 44px 20px 0; position:relative; list-style:none;
  font-family:var(--serif); font-size:1.08rem; color:var(--ink); font-weight:600; line-height:1.4;
}
.faq-item summary::-webkit-details-marker { display:none; }
.faq-item summary::after {
  content:'+'; position:absolute; right:8px; top:50%; transform:translateY(-50%);
  font-size:1.5rem; color:var(--gold-500); font-family:var(--sans); font-weight:300; transition:transform var(--t);
}
.faq-item[open] summary::after { content:'−'; }
.faq-item summary:hover { color:var(--brown-700); }
.faq-answer { padding:0 44px 22px 0; color:var(--body); font-size:.96rem; }
.faq-answer p:last-child { margin-bottom:0; }
.faq-topic { font-size:.66rem; letter-spacing:.14em; text-transform:uppercase; color:var(--gold-600); font-weight:700; display:block; margin-bottom:.3rem; }

/* ---------- OEM ---------- */
.oem-hero {
  background:linear-gradient(150deg,var(--brown-900) 0%,var(--navy-900) 48%,var(--navy-950) 100%);
  color:var(--cream-100); padding:clamp(56px,7vw,92px) 0;
}
.oem-hero h1 { color:var(--cream-50); }
.oem-hero .lede { color:#BFCADB; }

.oem-card {
  background:#fff; border:1px solid var(--cream-200); border-radius:var(--radius);
  padding:30px 28px; transition:all var(--t); height:100%;
  display:flex; flex-direction:column;
}
.oem-card:hover { border-color:var(--gold-500); box-shadow:var(--shadow-md); transform:translateY(-2px); }
.oem-icon {
  width:46px; height:46px; border:1.5px solid var(--gold-500); border-radius:50%;
  display:grid; place-items:center; margin-bottom:1.1rem;
  color:var(--gold-600); font-size:1.15rem;
  background:linear-gradient(140deg,var(--cream-100),#fff);
}
.oem-card h3 { font-size:1.1rem; margin-bottom:.5rem; }
.oem-card p { font-size:.89rem; color:var(--muted); line-height:1.62; margin-bottom:1rem; }
.oem-card .card-link { margin-top:auto; }

.step-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:26px; counter-reset:step; }
.step { position:relative; padding-top:20px; }
.step::before {
  counter-increment:step; content:counter(step,decimal-leading-zero);
  font-family:var(--serif); font-size:2.3rem; color:rgba(193,154,75,.32);
  line-height:1; display:block; margin-bottom:.5rem;
}
.step h3 { font-size:1.03rem; margin-bottom:.4rem; }
.step p { font-size:.87rem; color:var(--muted); margin:0; line-height:1.6; }
.section-dark .step p { color:#9DAABF; }
.section-dark .step::before { color:rgba(212,175,106,.38); }

/* ---------- CTA band ---------- */
.cta-band {
  background:
    radial-gradient(ellipse at 80% 20%, rgba(85,56,28,.5) 0%, transparent 60%),
    linear-gradient(120deg,var(--navy-900),var(--navy-950));
  color:var(--cream-100); padding:clamp(48px,6vw,78px) 0; text-align:center;
  border-top:1px solid rgba(212,175,106,.2);
}
.cta-band h2 { color:var(--cream-50); }
.cta-band p { color:#BFCADB; max-width:62ch; margin-left:auto; margin-right:auto; font-size:1.06rem; }
.cta-actions { display:flex; gap:14px; justify-content:center; flex-wrap:wrap; margin-top:1.8rem; }

/* ---------- Forms ---------- */
.form-card {
  background:#fff; border:1px solid var(--cream-200); border-radius:var(--radius);
  padding:34px 34px 38px; box-shadow:var(--shadow-sm);
}
.form-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:18px; }
.field { display:flex; flex-direction:column; margin-bottom:18px; }
.field-full { grid-column:1/-1; }
label { font-size:.79rem; font-weight:600; letter-spacing:.06em; text-transform:uppercase; color:var(--ink); margin-bottom:7px; }
label .req { color:#B4442F; }
input[type=text],input[type=email],input[type=tel],input[type=password],input[type=number],select,textarea {
  font-family:var(--sans); font-size:.96rem; color:var(--ink);
  padding:12px 14px; border:1px solid var(--cream-300); border-radius:var(--radius);
  background:#fff; transition:border-color var(--t),box-shadow var(--t); width:100%;
}
input:focus,select:focus,textarea:focus {
  outline:none; border-color:var(--gold-500); box-shadow:0 0 0 3px rgba(193,154,75,.15);
}
textarea { resize:vertical; min-height:130px; line-height:1.6; }
select { appearance:none; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%236B7686' d='M6 8L0 0h12z'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right 14px center; padding-right:38px; }
.field-hint { font-size:.79rem; color:var(--muted); margin-top:6px; }

.flash { padding:14px 18px; border-radius:var(--radius); margin-bottom:22px; font-size:.93rem; border:1px solid; }
.flash-success { background:#F0F7F0; border-color:#C5DFC5; color:#2C5F2E; }
.flash-error { background:#FCF1EF; border-color:#EBCCC6; color:#96382A; }

/* ---------- Contact info ---------- */
.info-list { list-style:none; padding:0; margin:0; }
.info-list li { padding:16px 0; border-bottom:1px solid var(--cream-200); display:flex; gap:16px; }
.info-list li:last-child { border-bottom:0; }
.info-label { flex:0 0 108px; font-size:.72rem; letter-spacing:.13em; text-transform:uppercase; color:var(--muted); font-weight:700; padding-top:2px; }
.info-value { flex:1; color:var(--ink); }

/* ---------- Filters / listing ---------- */
.filter-bar {
  display:flex; gap:10px; flex-wrap:wrap; align-items:center;
  padding:20px 0 30px; border-bottom:1px solid var(--cream-200); margin-bottom:34px;
}
.filter-chip {
  font-size:.82rem; padding:9px 18px; border:1px solid var(--cream-300);
  border-radius:100px; color:var(--body); background:#fff; transition:all var(--t);
}
.filter-chip:hover { border-color:var(--gold-500); color:var(--brown-700); }
.filter-chip.active { background:var(--navy-900); border-color:var(--navy-900); color:var(--gold-300); font-weight:600; }
.result-count { margin-left:auto; font-size:.84rem; color:var(--muted); }

.search-form { display:flex; gap:10px; max-width:520px; }
.search-form input { flex:1; }

/* ---------- Article ---------- */
.article-header { padding:52px 0 34px; border-bottom:1px solid var(--cream-200); margin-bottom:38px; }
.article-meta { font-size:.8rem; color:var(--muted); letter-spacing:.05em; }
.article-body { font-size:1.05rem; line-height:1.78; }
.article-body h2 { margin-top:2.4rem; }
.article-body img { border-radius:var(--radius); margin:2rem 0; }

/* ---------- Pagination ---------- */
.pagination { display:flex; gap:7px; justify-content:center; margin-top:48px; flex-wrap:wrap; }
.pagination a,.pagination span {
  min-width:42px; height:42px; display:grid; place-items:center; padding:0 12px;
  border:1px solid var(--cream-300); border-radius:var(--radius); font-size:.88rem; color:var(--body); background:#fff;
}
.pagination a:hover { border-color:var(--gold-500); color:var(--brown-700); }
.pagination .current { background:var(--navy-900); border-color:var(--navy-900); color:var(--gold-300); font-weight:600; }

/* ---------- Footer ---------- */
.site-footer { background:var(--navy-950); color:#93A2B8; padding:66px 0 0; font-size:.9rem; }
.footer-grid { display:grid; grid-template-columns:1.7fr 1fr 1fr 1.2fr; gap:44px; padding-bottom:48px; }
.site-footer h4 {
  color:var(--gold-400); font-family:var(--sans); font-size:.73rem;
  letter-spacing:.16em; text-transform:uppercase; margin-bottom:1.15rem; font-weight:700;
}
.site-footer a { color:#93A2B8; }
.site-footer a:hover { color:var(--gold-300); }
.footer-links { list-style:none; padding:0; margin:0; }
.footer-links li { margin-bottom:.62em; }
.footer-about p { color:#8394AC; line-height:1.68; font-size:.88rem; }
.footer-brand { display:flex; align-items:center; gap:12px; margin-bottom:1.2rem; }
.footer-certs {
  font-size:.75rem; color:var(--gold-600); letter-spacing:.03em;
  padding-top:1rem; border-top:1px solid rgba(255,255,255,.07); margin-top:1.2rem;
}
.footer-bottom {
  border-top:1px solid rgba(255,255,255,.08); padding:22px 0 30px;
  display:flex; justify-content:space-between; gap:18px; flex-wrap:wrap;
  font-size:.81rem; color:#6E7D93;
}
.footer-bottom a { color:#6E7D93; }
.footer-legal { display:flex; gap:20px; flex-wrap:wrap; }

/* ---------- 404 ---------- */
.error-page { text-align:center; padding:clamp(70px,10vw,130px) 0; }
.error-code { font-family:var(--serif); font-size:clamp(4.5rem,13vw,8.5rem); color:var(--gold-500); line-height:1; opacity:.35; margin-bottom:.1em; }

/* ---------- Responsive ---------- */
@media (max-width:1000px) {
  .hero-grid { grid-template-columns:1fr; gap:44px; }
  .grid-4 { grid-template-columns:repeat(2,1fr); }
  .usp-grid { grid-template-columns:repeat(2,1fr); }
  .usp:nth-child(2) { border-right:0; }
  .usp:nth-child(1),.usp:nth-child(2) { border-bottom:1px solid var(--cream-200); }
  .step-grid { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:repeat(2,1fr); gap:36px; }
  .product-hero { grid-template-columns:1fr; gap:36px; }
  .product-gallery { position:static; }
}

@media (max-width:820px) {
  body { font-size:16px; }
  .nav-toggle { display:block; }
  .main-nav {
    display:none; position:absolute; top:100%; left:0; right:0;
    background:var(--navy-850); border-top:1px solid rgba(212,175,106,.2);
    flex-direction:column; align-items:stretch; padding:12px; gap:2px;
    box-shadow:var(--shadow-lg); max-height:76vh; overflow-y:auto;
  }
  .main-nav.open { display:flex; }
  .main-nav a { padding:13px 16px; }
  .main-nav a[aria-current]::after { display:none; }
  .drop { position:static; opacity:1; visibility:visible; transform:none; box-shadow:none; background:rgba(0,0,0,.22); margin:2px 0 6px; border:0; }
  .nav-cta { margin:8px 0 0; }
  .grid-3,.grid-2 { grid-template-columns:1fr; }
  .form-grid { grid-template-columns:1fr; }
  .app-list { grid-template-columns:1fr; }
  .key-facts dl { grid-template-columns:1fr; }
  .topbar .wrap { justify-content:center; text-align:center; }
  .qf-row { flex-direction:column; gap:3px; }
  .qf-row dt { flex:none; }
  .spec-row { flex-direction:column; }
  .spec-row dt { flex:none; padding-bottom:2px; }
  .spec-row dd { border-left:0; padding-top:0; }
}

@media (max-width:560px) {
  .grid-4 { grid-template-columns:1fr; }
  .usp-grid { grid-template-columns:1fr; }
  .usp { border-right:0; border-bottom:1px solid var(--cream-200); }
  .step-grid { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; }
  .product-thumbs { grid-template-columns:repeat(2,1fr); }
  .hero-stats { gap:24px; }
  .btn { padding:14px 24px; font-size:.8rem; }
}

@media print {
  .site-header,.site-footer,.cta-band,.hero-actions,.product-actions { display:none; }
  body { background:#fff; color:#000; font-size:12pt; }
}