/* =========================================================
   THE 3D SHOP — stylesheet
   Design language: premium, engineering/CAD-drawing inspired.
   Ink navy + brass gold + warm paper, serif display / mono specs.
   ========================================================= */

:root{
  --ink:        #14161F;
  --ink-soft:   #2A2D3A;
  --paper:      #F7F4EE;
  --paper-dim:  #EFEAE0;
  --brass:      #AB8A4C;
  --brass-deep: #8C6F38;
  --slate:      #5B5F70;
  --line:       rgba(20,22,31,0.12);
  --line-on-ink:rgba(247,244,238,0.16);

  --font-display: 'Fraunces', Georgia, serif;
  --font-body:    'Inter', -apple-system, sans-serif;
  --font-mono:    'IBM Plex Mono', 'Courier New', monospace;

  --container: 1180px;
  --radius: 2px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3{ font-family:var(--font-display); font-weight:600; margin:0; letter-spacing:-0.01em; }
p{ margin:0; }
.wrap{ max-width:var(--container); margin:0 auto; padding:0 28px; }

/* respect reduced motion */
@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; transition-duration:0.001ms !important; }
  html{ scroll-behavior:auto; }
}

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

/* ---------- dot-grid "build plate" texture ---------- */
.plate-grid{
  background-image: radial-gradient(var(--line) 1px, transparent 1px);
  background-size: 26px 26px;
}
.plate-grid--ink{
  background-image: radial-gradient(var(--line-on-ink) 1px, transparent 1px);
  background-size: 26px 26px;
}

/* ---------- header ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(247,244,238,0.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.site-header .wrap{
  display:flex; align-items:center; justify-content:space-between;
  height:76px;
}
.brand{ display:flex; align-items:center; gap:12px; }
.brand img{ height:40px; width:40px; object-fit:contain; }
.brand-word{ font-family:var(--font-display); font-size:20px; font-weight:600; }
.brand-word span{ color:var(--brass-deep); }

.main-nav{ display:flex; align-items:center; gap:36px; }
.main-nav a{
  font-family:var(--font-mono); font-size:12.5px; letter-spacing:0.06em;
  text-transform:uppercase; color:var(--ink-soft);
  padding-bottom:2px; border-bottom:1px solid transparent;
  transition:border-color .2s ease, color .2s ease;
}
.main-nav a:hover{ color:var(--ink); border-color:var(--brass); }

.nav-cta{
  font-family:var(--font-mono); font-size:12.5px; letter-spacing:0.04em;
  background:var(--ink); color:var(--paper) !important;
  padding:10px 18px; border-radius:var(--radius);
  transition:background .2s ease;
}
.nav-cta:hover{ background:var(--brass-deep); }

.nav-toggle{
  display:none; background:none; border:none; cursor:pointer;
  width:32px; height:32px; padding:0; position:relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:''; position:absolute; left:4px; right:4px; height:2px; background:var(--ink);
}
.nav-toggle span{ top:15px; }
.nav-toggle span::before{ top:-8px; }
.nav-toggle span::after{ top:8px; }

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:96px 0 84px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero .wrap{ position:relative; z-index:2; }
.hero-eyebrow{
  font-family:var(--font-mono); font-size:12.5px; letter-spacing:0.14em;
  color:var(--brass-deep); text-transform:uppercase; margin-bottom:22px;
  display:flex; align-items:center; gap:10px;
}
.hero-eyebrow::before{
  content:''; width:26px; height:1px; background:var(--brass-deep);
}
.hero h1{
  font-size:clamp(40px, 6vw, 74px);
  line-height:1.04;
  max-width:820px;
  margin-bottom:26px;
}
.hero h1 em{ font-style:italic; color:var(--brass-deep); }
.hero-sub{
  max-width:560px; font-size:18px; color:var(--slate); margin-bottom:40px;
}
.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; align-items:center; }

.btn{
  font-family:var(--font-mono); font-size:13px; letter-spacing:0.04em;
  padding:15px 26px; border-radius:var(--radius);
  display:inline-flex; align-items:center; gap:10px;
  border:1px solid var(--ink); cursor:pointer;
  transition:transform .18s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn-primary{ background:var(--ink); color:var(--paper); }
.btn-primary:hover{ background:var(--brass-deep); border-color:var(--brass-deep); transform:translateY(-1px); }
.btn-ghost{ background:transparent; color:var(--ink); }
.btn-ghost:hover{ border-color:var(--brass); color:var(--brass-deep); transform:translateY(-1px); }
.btn-small{ padding:11px 16px; font-size:12px; width:100%; justify-content:center; }

.hero-specs{
  margin-top:64px; display:grid; grid-template-columns:repeat(3,1fr); gap:1px;
  background:var(--line); border:1px solid var(--line);
  max-width:720px;
}
.hero-specs div{ background:var(--paper); padding:18px 22px; }
.hero-specs .k{ font-family:var(--font-mono); font-size:11px; letter-spacing:0.08em; color:var(--slate); text-transform:uppercase; }
.hero-specs .v{ font-family:var(--font-display); font-size:22px; margin-top:6px; }

/* ---------- section headings ---------- */
.section{ padding:88px 0; }
.section-alt{ background:var(--ink); color:var(--paper); }
.section-head{
  display:flex; justify-content:space-between; align-items:flex-end;
  gap:24px; margin-bottom:52px; flex-wrap:wrap;
}
.section-tag{
  font-family:var(--font-mono); font-size:12px; letter-spacing:0.12em;
  text-transform:uppercase; color:var(--brass-deep); margin-bottom:14px; display:block;
}
.section-alt .section-tag{ color:var(--brass); }
.section-head h2{ font-size:clamp(30px,3.6vw,42px); max-width:560px; }
.section-note{ max-width:360px; color:var(--slate); font-size:15px; }
.section-alt .section-note{ color:rgba(247,244,238,0.65); }

/* ---------- product grid ---------- */
.grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.card{
  background:var(--paper);
  display:flex; flex-direction:column;
}
.card-media{
  position:relative; aspect-ratio:1/1; overflow:hidden;
  border-bottom:1px solid var(--line);
}
.card-media img{ width:100%; height:100%; object-fit:cover; transition:transform .5s ease; }
.card:hover .card-media img{ transform:scale(1.035); }
.card-tag{
  position:absolute; top:12px; left:12px;
  font-family:var(--font-mono); font-size:9.5px; letter-spacing:0.05em;
  background:var(--ink); color:var(--paper); padding:4px 8px;
  text-transform:uppercase; opacity:0.88;
}
.card-body{ padding:22px 22px 24px; flex:1; display:flex; flex-direction:column; }
.card-index{ font-family:var(--font-mono); font-size:11px; color:var(--brass-deep); margin-bottom:8px; letter-spacing:0.05em; }
.card h3{ font-size:20px; margin-bottom:8px; }
.card-desc{ color:var(--slate); font-size:14.5px; margin-bottom:18px; flex:1; }
.card-spec-row{
  display:flex; justify-content:space-between; gap:8px;
  font-family:var(--font-mono); font-size:11px; color:var(--slate);
  padding-top:14px; border-top:1px dashed var(--line); margin-bottom:16px;
  text-transform:uppercase; letter-spacing:0.02em;
}
.card-price{ font-family:var(--font-display); font-size:19px; margin-bottom:14px; }
.card-price span{ font-family:var(--font-mono); font-size:11px; color:var(--slate); margin-left:6px; }

/* ---------- process strip ---------- */
.process{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px;
  background:var(--line-on-ink); border:1px solid var(--line-on-ink);
  margin-top:56px;
}
.process div{ background:var(--ink); padding:26px 24px; }
.process .k{ font-family:var(--font-mono); color:var(--brass); font-size:12px; letter-spacing:0.08em; }
.process p{ margin-top:10px; font-size:14.5px; color:rgba(247,244,238,0.8); }

/* ---------- about / material strip ---------- */
.about-grid{
  display:grid; grid-template-columns:1.1fr 1fr; gap:64px; align-items:center;
}
.about-copy p{ color:var(--slate); font-size:16px; margin-bottom:18px; max-width:480px; }
.about-copy p:last-child{ margin-bottom:0; }
.material-card{
  border:1px solid var(--line); padding:32px; background:var(--paper-dim);
}
.material-row{ display:flex; justify-content:space-between; padding:14px 0; border-bottom:1px dashed var(--line); font-family:var(--font-mono); font-size:13px; }
.material-row:last-child{ border-bottom:none; }
.material-row .k{ color:var(--slate); text-transform:uppercase; letter-spacing:0.04em; font-size:11.5px; }

/* ---------- CTA banner ---------- */
.cta-banner{
  padding:96px 0; text-align:center; border-top:1px solid var(--line); border-bottom:1px solid var(--line);
}
.cta-banner h2{ font-size:clamp(30px,4vw,48px); max-width:640px; margin:0 auto 22px; }
.cta-banner p{ color:var(--slate); max-width:460px; margin:0 auto 36px; font-size:17px; }

/* ---------- footer ---------- */
.site-footer{ background:var(--ink); color:rgba(247,244,238,0.75); padding:64px 0 32px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:48px; margin-bottom:48px; }
.footer-brand{ display:flex; align-items:center; gap:12px; margin-bottom:16px; }
.footer-brand img{ height:34px; width:34px; }
.footer-brand span{ font-family:var(--font-display); color:var(--paper); font-size:19px; }
.footer-col h4{ font-family:var(--font-mono); font-size:11.5px; letter-spacing:0.08em; text-transform:uppercase; color:var(--brass); margin-bottom:16px; }
.footer-col a, .footer-col p{ display:block; font-size:14.5px; margin-bottom:10px; color:rgba(247,244,238,0.75); }
.footer-col a:hover{ color:var(--paper); }
.footer-bottom{
  border-top:1px solid var(--line-on-ink); padding-top:24px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
  font-family:var(--font-mono); font-size:11.5px; color:rgba(247,244,238,0.45);
  letter-spacing:0.03em;
}

/* ---------- floating enquire (mobile) ---------- */
.float-enquire{
  position:fixed; bottom:18px; right:18px; z-index:60;
  display:none;
}

/* ---------- responsive ---------- */
@media (max-width: 980px){
  .grid{ grid-template-columns:repeat(2,1fr); }
  .about-grid{ grid-template-columns:1fr; gap:40px; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .process{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width: 720px){
  .main-nav{
    position:fixed; inset:76px 0 0 0; background:var(--paper);
    flex-direction:column; align-items:flex-start; padding:32px 28px;
    gap:26px; transform:translateX(100%); transition:transform .3s ease;
    border-top:1px solid var(--line);
  }
  .main-nav.open{ transform:translateX(0); }
  .nav-toggle{ display:block; }
  .hero-specs{ grid-template-columns:1fr; max-width:100%; }
  .grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; gap:32px; }
  .process{ grid-template-columns:1fr; }
  .float-enquire{ display:block; }
  .section{ padding:64px 0; }
  .hero{ padding:64px 0 56px; }
}