/* ============================================================
   EURO ZINC — design tokens
   ============================================================ */
:root{
  --bg-dark:      #14181c;
  --bg-dark-2:    #1c2227;
  --ink:          #14212c;
  --steel:        #3d5568;
  --steel-light:  #6c8598;
  --flame:        #e29a3c;
  --flame-light:  #f4c177;
  --flame-deep:   #b9701f;
  --paper:        #f5f6f4;
  --paper-2:      #eceeea;
  --line:         #d8dbd6;
  --line-dark:    #33393e;
  --grey:         #767c80;
  --white:        #ffffff;

  --font-display: 'Archivo Expanded', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'IBM Plex Mono', monospace;

  --container: 1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  font-size:16px;
  line-height:1.6;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3,h4{ font-family:var(--font-display); margin:0; line-height:1.05; letter-spacing:-.01em; }
p{ margin:0; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family:inherit; cursor:pointer; }

.wrap{ max-width:var(--container); margin:0 auto; padding:0 28px; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001ms !important; transition-duration:.001ms !important; }
}

/* ---------- focus ---------- */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline:2px solid var(--flame);
  outline-offset:3px;
}

/* ---------- eyebrow / label ---------- */
.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--flame-deep);
  display:flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:'';
  width:20px;height:1px;background:var(--flame-deep);
  display:inline-block;
}
.on-dark .eyebrow{ color:var(--flame-light); }
.on-dark .eyebrow::before{ background:var(--flame-light); }

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(245,246,244,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 28px;
  max-width:var(--container); margin:0 auto;
}
.brand{ display:flex; align-items:center; gap:10px; }
.brand img{ height:48px; width:auto; }
.brand-name{ font-family:var(--font-display); font-weight:700; font-size:16px; letter-spacing:.02em; }
.brand-name span{ color:var(--flame-deep); }

.nav-links{ display:flex; gap:34px; align-items:center; }
.nav-links li:not(:last-child){ margin-right:34px; }
@supports (gap: 1px){ .nav-links li:not(:last-child){ margin-right:0; } }
.nav-links a{
  font-size:14px; font-weight:600; letter-spacing:.02em;
  color:var(--ink); position:relative; padding:4px 0;
}
.nav-links a::after{
  content:''; position:absolute; left:0; right:100%; bottom:-2px; height:2px;
  background:var(--flame); transition:right .25s ease;
}
.nav-links a:hover::after, .nav-links a.active::after{ right:0; }
.nav-links a.active{ color:var(--flame-deep); }

.lang-toggle{
  display:flex; border:1px solid var(--ink); border-radius:20px; overflow:hidden;
  font-family:var(--font-mono); font-size:12px;
}
.lang-toggle button{
  border:none; background:transparent; padding:6px 13px; color:var(--ink);
  font-family:var(--font-mono); font-weight:600; letter-spacing:.04em;
}
.lang-toggle button.active{ background:var(--ink); color:var(--paper); }

.nav-cta{
  display:inline-block; padding:9px 18px; border-radius:3px;
  background:var(--ink); color:var(--paper) !important;
  font-size:13px; font-weight:700; letter-spacing:.03em;
}

.burger{ display:none; background:none; border:none; padding:6px; }
.burger span{ display:block; width:22px; height:2px; background:var(--ink); margin:5px 0; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  padding:14px 26px; border-radius:3px;
  font-weight:700; font-size:14px; letter-spacing:.02em;
  border:1px solid transparent;
  transition:transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
}
.btn:hover{ transform:translateY(-2px); }
.btn-primary{ background:var(--flame); color:var(--ink); }
.btn-primary:hover{ background:var(--flame-light); }
.btn-outline{ border-color:currentColor; color:var(--paper); }
.btn-outline:hover{ background:var(--paper); color:var(--ink); }
.btn-dark{ background:var(--ink); color:var(--paper); }
.btn-dark:hover{ background:var(--steel); }

/* ============================================================
   HERO (index)
   ============================================================ */
.hero{
  position:relative; min-height:92vh; display:flex; align-items:flex-end;
  background:#0b0d0f;
  overflow:hidden;
}
.hero-bg{
  position:absolute; inset:0;
  background-image:url('../images/flame1.jpg');
  background-size:cover; background-position:center 30%;
  filter:saturate(1.05) brightness(.62);
}
.hero-bg::after{ content:''; }
.hero-gradient{
  position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(11,13,15,.35) 0%, rgba(11,13,15,.35) 40%, rgba(11,13,15,.94) 100%);
}
.hero-content{
  position:relative; z-index:2; color:var(--paper);
  max-width:var(--container); margin:0 auto; width:100%;
  padding:0 28px 76px;
}
.hero h1{
  font-size:clamp(40px, 7vw, 92px);
  font-weight:800;
  margin:18px 0 22px;
  max-width:15ch;
}
.hero h1 em{ font-style:normal; color:var(--flame-light); }
.hero-sub{
  font-size:clamp(15px,1.7vw,19px);
  max-width:52ch; color:#cdd3d6; margin-bottom:34px;
}
.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; }

/* ---------- assay / certificate strip (signature element) ---------- */
.assay-strip{
  background:var(--ink); color:var(--paper);
  border-top:1px solid var(--line-dark);
  border-bottom:1px solid var(--line-dark);
}
.assay-strip .wrap{
  display:flex; overflow-x:auto; gap:0;
}
.assay-cell{
  flex:1 0 170px;
  padding:22px 24px;
  border-right:1px solid rgba(255,255,255,.12);
  font-family:var(--font-mono);
}
.assay-cell:last-child{ border-right:none; }
.assay-cell .label{
  font-size:11px; letter-spacing:.1em; text-transform:uppercase; color:var(--steel-light);
  margin-bottom:8px; display:block;
}
.assay-cell .value{
  font-size:26px; font-weight:600; color:var(--flame-light);
}
.assay-cell .value small{ font-size:13px; color:var(--paper); font-weight:400; margin-left:4px; }

/* ============================================================
   SECTIONS
   ============================================================ */
section{ padding:110px 0; }
.section-tight{ padding:70px 0; }
.on-dark{ background:var(--bg-dark); color:var(--paper); }
.on-paper-2{ background:var(--paper-2); }

.section-head{ max-width:640px; margin-bottom:56px; }
.section-head h2{ font-size:clamp(30px,4vw,48px); margin-top:16px; }
.section-head p{ margin-top:18px; color:var(--grey); font-size:17px; }
.on-dark .section-head p{ color:#a9b0b3; }

/* ---------- grid helpers ---------- */
.grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:32px; }
.grid-4{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }

/* ---------- stat list ---------- */
.stat-row{ display:flex; gap:56px; flex-wrap:wrap; margin-top:40px; }
.stat{ font-family:var(--font-mono); }
.stat .num{ font-family:var(--font-display); font-size:44px; color:var(--flame-deep); font-weight:800; }
.on-dark .stat .num{ color:var(--flame-light); }
.stat .cap{ font-size:12px; letter-spacing:.06em; text-transform:uppercase; color:var(--grey); margin-top:4px; }
.on-dark .stat .cap{ color:#98a0a4; }

/* ---------- product / grade cards ---------- */
.grade-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:4px;
  overflow:hidden;
  display:flex; flex-direction:column;
  transition:border-color .2s ease, transform .2s ease;
}
.grade-card:hover{ border-color:var(--flame); transform:translateY(-4px); }
.grade-card .shot{ aspect-ratio:4/3; overflow:hidden; background:var(--paper-2); }
.grade-card .shot img{ width:100%; height:100%; object-fit:cover; }
.grade-card .body{ padding:24px 22px 26px; flex:1; display:flex; flex-direction:column; }
.grade-card .code{ font-family:var(--font-mono); font-size:12px; color:var(--flame-deep); letter-spacing:.06em; margin-bottom:8px; }
.grade-card h3{ font-size:21px; margin-bottom:10px; }
.grade-card .desc{ color:var(--grey); font-size:14.5px; flex:1; }
.grade-card .specs{
  margin-top:18px; padding-top:16px; border-top:1px dashed var(--line);
  font-family:var(--font-mono); font-size:12.5px; color:var(--ink);
  display:flex; justify-content:space-between;
}
.grade-card .specs b{ color:var(--flame-deep); }

/* ---------- process / timeline ---------- */
.process-step{
  display:grid; grid-template-columns:90px 1fr; gap:26px;
  padding:34px 0; border-top:1px solid var(--line-dark);
}
.process-step:last-child{ border-bottom:1px solid var(--line-dark); }
.process-step .pnum{ font-family:var(--font-mono); font-size:14px; color:var(--flame-light); }
.process-step h4{ font-size:21px; margin-bottom:8px; }
.process-step p{ color:#a9b0b3; font-size:15px; max-width:60ch; }

/* ---------- values ---------- */
.value-card{ border-left:2px solid var(--flame); padding-left:20px; }
.value-card h4{ font-size:18px; margin-bottom:8px; }
.value-card p{ color:var(--grey); font-size:14.5px; }

/* ---------- image band ---------- */
.img-band{ display:grid; grid-template-columns:1.3fr 1fr; gap:18px; }
.img-band img{ width:100%; height:100%; object-fit:cover; border-radius:4px; }
.img-band .tall{ height:100%; }

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(120deg, var(--ink), var(--steel));
  color:var(--paper);
  border-radius:6px;
  padding:64px 56px;
  display:flex; align-items:center; justify-content:space-between; gap:40px; flex-wrap:wrap;
}
.cta-band h3{ font-size:clamp(24px,3vw,34px); max-width:20ch; }

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-grid{ display:grid; grid-template-columns:.9fr 1.1fr; gap:60px; }
.contact-info dt{ font-family:var(--font-mono); font-size:11px; letter-spacing:.08em; text-transform:uppercase; color:var(--flame-deep); margin-top:26px; }
.contact-info dt:first-child{ margin-top:0; }
.contact-info dd{ margin:6px 0 0; font-size:17px; }

.form-card{ background:var(--white); border:1px solid var(--line); border-radius:6px; padding:36px; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.field{ margin-bottom:18px; }
.field label{ display:block; font-size:12.5px; font-weight:600; margin-bottom:7px; color:var(--steel); }
.field input, .field select, .field textarea{
  width:100%; padding:12px 14px; border:1px solid var(--line); border-radius:3px;
  font-family:var(--font-body); font-size:14.5px; background:var(--paper);
}
.field textarea{ resize:vertical; min-height:110px; }
.form-note{ font-size:12.5px; color:var(--grey); margin-top:14px; }

/* ============================================================
   ABOUT PAGE — team / cert
   ============================================================ */
.person-card{ display:flex; gap:22px; align-items:flex-start; }
.person-card img{ width:120px; height:120px; object-fit:cover; border-radius:4px; }
.person-card h4{ font-size:19px; }
.person-card .role{ font-family:var(--font-mono); font-size:12px; color:var(--flame-deep); margin:4px 0 10px; text-transform:uppercase; letter-spacing:.06em; }
.person-card p{ color:var(--grey); font-size:14.5px; }

.cert-badges{ display:flex; gap:14px; flex-wrap:wrap; margin-top:30px; }
.cert-badge{
  font-family:var(--font-mono); font-size:12px; border:1px solid var(--line-dark);
  padding:9px 16px; border-radius:20px; color:#c7cccf;
}

/* ============================================================
   FOOTER
   ============================================================ */
footer{ background:var(--bg-dark-2); color:#9aa1a4; padding:64px 0 30px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; margin-bottom:50px; }
.footer-brand img{ height:32px; margin-bottom:14px; }
.footer-brand p{ font-size:14px; max-width:32ch; color:#7d8386; }
footer h5{ color:var(--paper); font-family:var(--font-mono); font-size:12px; letter-spacing:.08em; text-transform:uppercase; margin-bottom:16px; }
footer ul li{ margin-bottom:10px; font-size:14.5px; }
footer a:hover{ color:var(--flame-light); }
.footer-bottom{
  border-top:1px solid var(--line-dark); padding-top:24px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
  font-size:12.5px; color:#6c7275;
}

/* ============================================================
   PAGE HEADER (inner pages)
   ============================================================ */
.page-header{
  background:var(--ink); color:var(--paper);
  padding:150px 0 70px;
  position:relative; overflow:hidden;
}
.page-header::before{
  content:''; position:absolute; right:-120px; top:-80px; width:420px; height:420px;
  background:radial-gradient(circle, rgba(226,154,60,.28), transparent 70%);
}
.page-header h1{ font-size:clamp(34px,5vw,58px); position:relative; }
.page-header .lead{ margin-top:18px; max-width:56ch; color:#b7bec1; font-size:17px; position:relative; }
.breadcrumb{ font-family:var(--font-mono); font-size:12px; color:var(--flame-light); margin-bottom:14px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px){
  .nav{ flex-wrap:wrap; }
  .nav-links{
    display:none; width:100%; order:3; flex-direction:column; gap:0;
    background:var(--paper); border-top:1px solid var(--line); margin-top:14px;
  }
  .nav-links.is-open{ display:flex; }
  .nav-links li{ width:100%; border-bottom:1px solid var(--line); }
  .nav-links a{ display:block; padding:14px 4px; }
  .burger{ display:block; }
  .grid-2, .contact-grid{ grid-template-columns:1fr; gap:32px; }
  .grid-3{ grid-template-columns:1fr; }
  .grid-4{ grid-template-columns:1fr 1fr; }
  .img-band{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .form-row{ grid-template-columns:1fr; }
  .cta-band{ flex-direction:column; align-items:flex-start; }
  section{ padding:70px 0; }
}
@media (max-width: 560px){
  .grid-4{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .assay-cell{ flex:1 0 140px; padding:16px 18px; }
  .nav-cta{ display:none !important; }
  .nav{ padding:12px 20px; }
}

/* language visibility */
[data-en], [data-ru]{ }
html[lang="ru"] .i18n-en{ display:none !important; }
html[lang="en"] .i18n-ru{ display:none !important; }