/* ==========================================================================
   STAMET – style.css
   Grey/white, hi-tech-luxury identity for a modular steel + wood staircase
   brand. Palette is a warm, chosen neutral (not a default cold grey) that
   echoes the raw plaster / oak / black steel of the product photography.
   Single committed light world by design – see note at file end.
   ========================================================================== */

:root{
  --paper:      #F5F3EF;   /* page ground – warm off-white plaster tone   */
  --surface:    #FFFFFF;   /* cards, header, raised panels                */
  --ink:        #17160F;   /* near-black, warm – headings, primary text  */
  --graphite:   #55524A;   /* secondary text                             */
  --mist:       #9C988C;   /* tertiary text, placeholders                */
  --line:       #E2DED4;   /* hairlines on light ground                  */
  --line-strong:#CFC9BC;
  --ink-line:   rgba(245,243,239,0.16); /* hairlines on dark ground       */
  --focus:      #17160F;

  --radius-s: 2px;
  --radius-m: 3px;

  --gutter: clamp(20px, 5vw, 64px);
  --maxw: 1320px;

  color-scheme: light;
}

/* This site commits deliberately to one bright, architectural light world –
   the airy plaster/oak/steel palette IS the luxury signal, and a dark
   variant would undercut it – so colors are painted explicitly and no
   prefers-color-scheme override is defined. */

*{ box-sizing: border-box; }
html{ -webkit-text-size-adjust: 100%; }
body{
  margin:0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Manrope', -apple-system, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
button{ font-family: inherit; cursor: pointer; }
h1,h2,h3,h4{ margin:0; font-family:'Unbounded', 'Manrope', sans-serif; font-weight:600; text-wrap: balance; letter-spacing: -0.01em; }
p{ margin:0; }
ul{ margin:0; padding:0; list-style:none; }
:focus-visible{ outline: 2px solid var(--focus); outline-offset: 3px; }

.mono{ font-family:'JetBrains Mono','SFMono-Regular',monospace; letter-spacing: 0.01em; }
.eyebrow{
  font-family:'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--graphite);
}
.eyebrow--on-dark{ color: rgba(245,243,239,0.62); }
.hero-kicker{
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: rgba(245,243,239,0.88) !important;
}

.wrap{
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

/* ---------- signature rule: skewed bars, echoing the mark ---------- */
.bar-rule{
  display:flex;
  gap:6px;
  align-items:center;
  height: 8px;
}
.bar-rule span{
  display:block;
  height: 100%;
  flex: 1 1 auto;
  background: currentColor;
  transform: skewX(-22deg);
}
.bar-rule--sm{ height:5px; width:40px; }
.bar-rule--sm span{ flex:none; width:10px; }

.divider{
  border:0;
  height: 10px;
  margin: 0;
  display:flex;
  gap: 5vw;
  padding-inline: var(--gutter);
  color: var(--line-strong);
  overflow:hidden;
}
.divider span{
  flex:1 1 auto;
  height:2px;
  align-self:center;
  background: currentColor;
  transform: skewX(-22deg);
  max-width: 120px;
}
.divider--dark{ color: var(--ink-line); }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:12px;
  padding: 16px 26px;
  border-radius: var(--radius-s);
  font-family:'Manrope',sans-serif;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  transition: transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
  white-space: nowrap;
}
.btn svg{ flex:none; transition: transform .18s ease; }
.btn:hover svg{ transform: translateX(3px); }
.btn:active{ transform: translateY(1px); }

.btn--primary{ background: var(--ink); color: var(--paper); }
.btn--primary:hover{ background:#000; }

.btn--ghost{ background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn--ghost:hover{ border-color: var(--ink); }

.btn--on-dark{ background: var(--paper); color: var(--ink); }
.btn--on-dark:hover{ background:#fff; }

.btn--sm{ padding: 10px 16px; font-size: 13px; }

/* ---------- header ---------- */
.site-header{
  position: sticky; top:0; z-index: 40;
  background: rgba(245,243,239,0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap{
  display:flex; align-items:center; justify-content:space-between;
  gap: 20px;
  padding-block: 14px;
}
.brand{ display:flex; align-items:center; gap:10px; }
.brand img{ height: 26px; width:auto; }
.brand-icon{ height: 22px !important; }
.brand-word{ height: 15px !important; }

.header-right{ display:flex; align-items:center; gap: 22px; }
.header-phone{ display:flex; flex-direction:column; text-align:right; gap:2px; }
.header-phone a{ font-family:'JetBrains Mono',monospace; font-size:14px; font-weight:600; }
.header-phone span{ font-size:11px; color:var(--mist); }

@media (max-width: 720px){
  .header-phone{ display:none; }
}

/* ---------- hero ---------- */
.hero{
  position: relative;
  overflow:hidden;
  background: var(--ink);
  min-height: clamp(600px, 90vh, 980px);
  display:flex;
  align-items:flex-end;
}
.hero-media{ position:absolute; inset:0; }
.hero-media img{
  width:100%; height:100%; object-fit:cover; object-position: 68% 30%;
}
.hero-media::after{
  content:'';
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(23,22,15,0.12) 0%, rgba(23,22,15,0.30) 55%, rgba(23,22,15,0.86) 100%);
}
.hero-content{
  position:relative;
  z-index:2;
  color: var(--paper);
  padding-block: clamp(48px, 10vw, 96px) clamp(40px, 7vw, 64px);
  width:100%;
}
.hero-content .wrap{ display:block; }
.hero-kicker{ margin-bottom:18px; }
.hero h1{
  font-size: clamp(34px, 6vw, 68px);
  line-height: 1.04;
  max-width: 16ch;
  margin-bottom: 22px;
}
.hero-sub{
  max-width: 46ch;
  color: rgba(245,243,239,0.82);
  font-size: clamp(15px, 1.6vw, 18px);
  margin-bottom: 34px;
}
.hero-cta-row{ display:flex; align-items:center; gap: 22px; flex-wrap:wrap; }
.hero-note{ font-size:13px; color: rgba(245,243,239,0.58); max-width: 30ch; }

/* ---------- feature strip ---------- */
.feature-strip{
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.feature-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.feature-item{
  padding: 30px var(--gutter, 28px) 30px 0;
  border-left: 1px solid var(--line);
  padding-left: 28px;
  display:flex; flex-direction:column; gap:10px;
}
.feature-grid .feature-item:first-child{ border-left:none; padding-left:0; }
.feature-item .num{ color: var(--mist); }
.feature-item h4{ font-size:16px; font-weight:700; font-family:'Manrope',sans-serif; }
.feature-item p{ font-size:13.5px; color: var(--graphite); }

@media (max-width: 980px){
  .feature-grid{ grid-template-columns: repeat(2,1fr); }
  .feature-item{ padding: 22px var(--gutter) 22px 0; }
  .feature-grid .feature-item:nth-child(3){ border-left:none; padding-left:0; }
}
@media (max-width: 560px){
  .feature-grid{ grid-template-columns: 1fr; }
  .feature-item{ border-left:none !important; padding-left:0 !important; padding-block:18px; border-top:1px solid var(--line); }
  .feature-grid .feature-item:first-child{ border-top:none; }
}

/* ---------- section shell ---------- */
.section{ padding-block: clamp(56px, 9vw, 112px); }
.section--surface{ background: var(--surface); }
.section--ink{ background: var(--ink); color: var(--paper); }
.section-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap: 28px;
  margin-bottom: clamp(32px, 5vw, 56px);
  flex-wrap: wrap;
}
.section-head h2{ font-size: clamp(26px, 3.6vw, 42px); max-width: 18ch; }
.section-head .lede{ max-width: 34ch; color: var(--graphite); font-size:15px; }
.section--ink .section-head .lede{ color: rgba(245,243,239,0.68); }

/* ---------- carousel / gallery ---------- */
.gallery{ position:relative; }
.gallery-viewport{
  position:relative;
  overflow:hidden;
  border-radius: var(--radius-m);
  background: #000;
  aspect-ratio: 16/10;
}
.gallery-track{
  position:absolute; inset:0;
  display:flex;
  transition: transform .55s cubic-bezier(.65,0,.35,1);
}
.gallery-slide{
  position:relative;
  flex: 0 0 100%;
  height:100%;
}
.gallery-slide img{ width:100%; height:100%; object-fit:cover; }
.gallery-caption{
  position:absolute; left:0; right:0; bottom:0;
  padding: 22px clamp(18px,3vw,36px);
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.62));
  color:#fff;
  display:flex; justify-content:space-between; align-items:flex-end; gap:16px;
}
.gallery-caption strong{ font-family:'Unbounded',sans-serif; font-weight:600; font-size: clamp(16px,2vw,22px); display:block; }
.gallery-caption span{ font-size:13px; color:rgba(255,255,255,0.72); }

.gallery-controls{
  display:flex; align-items:center; justify-content:space-between;
  margin-top: 22px;
  gap: 20px;
}
.gallery-arrows{ display:flex; gap:10px; }
.gallery-arrow{
  width:44px; height:44px; border-radius:50%;
  border:1px solid var(--line-strong);
  background: var(--surface);
  display:flex; align-items:center; justify-content:center;
  transition: background .15s ease, border-color .15s ease;
}
.section--ink .gallery-arrow{ border-color: var(--ink-line); background: transparent; color: var(--paper); }
.gallery-arrow:hover{ background: var(--ink); color:var(--paper); border-color:var(--ink); }
.gallery-dots{ display:flex; gap:8px; }
.gallery-dot{ width:20px; height:3px; background: var(--line-strong); transform: skewX(-22deg); transition: background .15s ease; }
.section--ink .gallery-dot{ background: var(--ink-line); }
.gallery-dot.is-active{ background: var(--ink); }
.section--ink .gallery-dot.is-active{ background: var(--paper); }

@media (max-width: 640px){
  .gallery-caption{ padding: 16px clamp(14px,4vw,22px); }
  .gallery-controls{ justify-content:center; gap:16px; margin-top:18px; }
  .gallery-dots{ display:none; } /* dot-per-slide doesn't scale to a phone width with this many photos; swipe + arrows + counter cover navigation */
  .gallery-arrow{ width:40px; height:40px; }
}

/* ---------- process ---------- */
.process-list{
  display:grid;
  grid-template-columns: repeat(3,1fr);
  gap: 1px;
  background: var(--ink-line);
}
.process-item{
  background: var(--ink);
  padding: 30px 28px;
  display:flex; flex-direction:column; gap:14px;
}
.process-item .num{ font-family:'Unbounded',sans-serif; font-size:34px; color: rgba(245,243,239,0.28); }
.process-item h4{ font-size:19px; color: var(--paper); }
.process-item p{ font-size:14px; color: rgba(245,243,239,0.66); max-width: 30ch; }
@media (max-width: 760px){ .process-list{ grid-template-columns: 1fr; } }

/* ---------- final CTA ---------- */
.cta-panel{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: clamp(32px,6vw,64px);
  display:flex; align-items:center; justify-content:space-between;
  gap: 32px; flex-wrap: wrap;
}
.cta-panel h2{ font-size: clamp(24px,3.4vw,36px); max-width: 20ch; }
.cta-panel .lede{ color:var(--graphite); font-size:14px; margin-top:10px; max-width: 40ch; }

/* ---------- footer ---------- */
.site-footer{ background: var(--ink); color: rgba(245,243,239,0.72); }
.footer-top{
  display:grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  padding-block: clamp(40px,6vw,64px);
  border-bottom: 1px solid var(--ink-line);
}
.footer-brand .brand img{ filter:none; }
.footer-brand p{ margin-top:16px; font-size:13.5px; max-width:32ch; color: rgba(245,243,239,0.58); }
.footer-col h5{
  font-family:'JetBrains Mono',monospace; font-size:11px; letter-spacing:0.14em; text-transform:uppercase;
  color: rgba(245,243,239,0.42); margin-bottom:16px; font-weight:500;
}
.footer-col ul{ display:flex; flex-direction:column; gap:11px; }
.footer-col a{ font-size:14px; color: rgba(245,243,239,0.82); }
.footer-col a:hover{ color: var(--paper); text-decoration: underline; text-decoration-color: rgba(245,243,239,0.4); }
.footer-col address{ font-style:normal; font-size:14px; color: rgba(245,243,239,0.82); line-height:1.6; }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center; gap:16px; flex-wrap:wrap;
  padding-block: 20px;
  font-size: 12.5px; color: rgba(245,243,239,0.42);
}
.footer-legal-line{ font-family:'JetBrains Mono',monospace; font-size:11.5px; }
.socials{ display:flex; gap:14px; }
.socials a{ color: rgba(245,243,239,0.72); }
.socials a:hover{ color: var(--paper); }

@media (max-width: 900px){
  .footer-top{ grid-template-columns: 1fr 1fr; }
  .footer-brand{ grid-column: 1 / -1; }
}
@media (max-width: 560px){
  .footer-top{ grid-template-columns: 1fr; }
}

/* ---------- cookie banner ---------- */
.cookie-bar{
  position: fixed; left:16px; right:16px; bottom:16px; z-index:80;
  max-width: 640px; margin-inline:auto;
  background: var(--ink); color: var(--paper);
  border-radius: var(--radius-m);
  padding: 18px 20px;
  display:flex; align-items:center; gap:18px; flex-wrap:wrap;
  box-shadow: 0 20px 50px rgba(0,0,0,0.25);
}
.cookie-bar p{ font-size:13px; color: rgba(245,243,239,0.82); flex:1 1 240px; }
.cookie-bar a{ text-decoration:underline; text-decoration-color: rgba(245,243,239,0.4); }
.cookie-bar[hidden]{ display:none; }

/* ---------- legal / content pages ---------- */
.legal-hero{ padding-block: clamp(48px,7vw,80px) clamp(24px,4vw,40px); background: var(--surface); border-bottom:1px solid var(--line); }
.legal-hero h1{ font-size: clamp(28px,4vw,44px); max-width: 22ch; }
.legal-hero .meta{ margin-top:14px; color:var(--graphite); font-size:13.5px; }
.legal-body{ padding-block: clamp(40px,6vw,64px); }
.legal-grid{ display:grid; grid-template-columns: 240px 1fr; gap: 56px; align-items:start; }
.legal-toc{ position:sticky; top:96px; display:flex; flex-direction:column; gap:10px; }
.legal-toc a{ font-size:13.5px; color: var(--graphite); padding-block:2px; }
.legal-toc a:hover{ color: var(--ink); }
.legal-content{ max-width: 68ch; }
.legal-content h2{ font-size:20px; margin-top:40px; margin-bottom:14px; }
.legal-content h2:first-child{ margin-top:0; }
.legal-content h3{ font-size:15px; margin-top:22px; margin-bottom:8px; font-family:'Manrope',sans-serif; font-weight:700; }
.legal-content p{ color: var(--graphite); font-size:15px; margin-bottom:14px; }
.legal-content ul{ margin-bottom:14px; display:flex; flex-direction:column; gap:8px; }
.legal-content li{ color: var(--graphite); font-size:15px; padding-left:18px; position:relative; }
.legal-content li::before{ content:''; position:absolute; left:0; top:9px; width:8px; height:2px; background:var(--mist); transform:skewX(-22deg); }
.legal-content strong{ color: var(--ink); }
.legal-content table{ width:100%; border-collapse:collapse; margin-bottom:18px; font-size:14px; }
.legal-content td{ padding:9px 0; border-bottom:1px solid var(--line); color:var(--graphite); }
.legal-content td:first-child{ color:var(--ink); font-weight:600; width:44%; }
@media (max-width: 820px){
  .legal-grid{ grid-template-columns: 1fr; }
  .legal-toc{ position:static; flex-direction:row; flex-wrap:wrap; gap:16px; }
}

.back-link{ display:inline-flex; align-items:center; gap:8px; font-size:13.5px; color:var(--graphite); margin-bottom:18px; }
.back-link:hover{ color:var(--ink); }

.contact-cards{ display:grid; grid-template-columns: repeat(3,1fr); gap:1px; background:var(--line); margin-top:8px; }
.contact-card{ background:var(--surface); padding:26px 24px; display:flex; flex-direction:column; gap:8px; }
.contact-card h4{ font-size:12px; letter-spacing:.1em; text-transform:uppercase; font-family:'JetBrains Mono',monospace; color:var(--mist); font-weight:500; }
.contact-card a, .contact-card p{ font-size:16px; color:var(--ink); }
@media (max-width: 760px){ .contact-cards{ grid-template-columns:1fr; } }

.map-frame{ margin-top:40px; border:1px solid var(--line); border-radius:var(--radius-m); overflow:hidden; aspect-ratio:16/7; background:var(--surface); }
.map-frame iframe{ width:100%; height:100%; border:0; display:block; }