/* ============================================================
   AIW WORKS — Design System
   Palette drawn from the brand mark: slate charcoal + mocha taupe,
   set against a warm mill-paper base, with a brass accent pulled
   from the reception-desk hero shot. Signature motif: the "nesting
   diagram" — the sheet-layout drawing a CNC operator actually reads
   before cutting a panel. Used as a structural device throughout,
   not just decoration, since it's literally how this factory works.
   ============================================================ */

:root{
  /* Color */
  --paper: #F6F3EE;
  --paper-alt: #EEE8DE;
  --ink: #201F24;
  --ink-soft: #514F58;
  --slate: #46454F;
  --slate-deep: #29282E;
  --mocha: #80726F;
  --mocha-deep: #6B5F5C;
  --brass: #B08348;
  --brass-deep: #8E6935;
  --line: #DBD2C3;
  --line-on-dark: rgba(246,243,238,0.16);
  --white: #FFFFFF;

  /* Type */
  --f-display: 'Space Grotesk', sans-serif;
  --f-body: 'Inter', sans-serif;
  --f-mono: 'IBM Plex Mono', monospace;

  /* Layout */
  --maxw: 1240px;
  --gutter: clamp(20px, 5vw, 64px);
  --radius: 2px;
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--f-body);
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family: var(--f-display); margin:0; font-weight:600; letter-spacing:-0.01em; }
p{ margin:0; }
button{ font-family: inherit; cursor:pointer; }

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

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

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

/* ---------- eyebrow / spec-code labels ---------- */
.eyebrow{
  font-family: var(--f-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mocha-deep);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom: 14px;
}
.eyebrow::before{
  content:"";
  width:22px; height:1px;
  background: var(--brass);
  display:inline-block;
}
.on-dark .eyebrow{ color: #D8C9A8; }
.on-dark .eyebrow::before{ background: var(--brass); }

/* ---------- Header ---------- */
.site-header{
  position: sticky; top:0; z-index: 100;
  background: rgba(246,243,238,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .container{
  display:flex; align-items:center; justify-content:space-between;
  height: 78px;
}
.brand{ display:flex; align-items:center; gap:10px; }
.brand img{ height: 30px; width:auto; }
.main-nav{ display:flex; align-items:center; gap: 2px; }
.main-nav a{
  font-family: var(--f-mono);
  font-size: 12.5px;
  letter-spacing:0.06em;
  text-transform: uppercase;
  padding: 10px 16px;
  color: var(--ink-soft);
  border-radius: var(--radius);
  transition: color .15s ease;
  position: relative;
}
.main-nav a:hover{ color: var(--ink); }
.main-nav a.active{ color: var(--ink); }
.main-nav a.active::after{
  content:"";
  position:absolute; left:16px; right:16px; bottom:5px;
  height:2px; background: var(--brass);
}
.nav-cta{
  font-family: var(--f-mono) !important;
  background: var(--slate); color: var(--paper) !important;
  padding: 11px 20px !important; border-radius: var(--radius);
  margin-left: 8px;
}
.nav-cta:hover{ background: var(--ink); }
.nav-toggle{
  display:none; background:none; border:none; padding:8px;
  flex-direction:column; gap:5px;
}
.nav-toggle span{ width:24px; height:2px; background: var(--ink); display:block; }

@media (max-width: 920px){
  .main-nav{
    position:fixed; inset: 78px 0 0 0; background: var(--paper);
    flex-direction:column; align-items:stretch; padding: 10px var(--gutter) 30px;
    transform: translateY(-8px); opacity:0; pointer-events:none;
    transition: opacity .18s ease, transform .18s ease;
    overflow-y:auto;
  }
  .main-nav.open{ opacity:1; pointer-events:auto; transform:none; }
  .main-nav a{ padding: 16px 4px; border-bottom:1px solid var(--line); font-size:14px; }
  .nav-cta{ margin: 16px 4px 0; text-align:center; }
  .nav-toggle{ display:flex; }
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family: var(--f-mono); font-size: 13px; letter-spacing:0.06em; text-transform:uppercase;
  padding: 15px 26px; border-radius: var(--radius);
  border: 1px solid transparent;
  transition: all .15s ease;
}
.btn-primary{ background: var(--slate); color: var(--paper); }
.btn-primary:hover{ background: var(--ink); }
.btn-brass{ background: var(--brass); color: var(--white); }
.btn-brass:hover{ background: var(--brass-deep); }
.btn-outline{ border-color: var(--ink); color: var(--ink); }
.btn-outline:hover{ background: var(--ink); color: var(--paper); }
.on-dark .btn-outline{ border-color: rgba(246,243,238,0.5); color: var(--paper); }
.on-dark .btn-outline:hover{ background: var(--paper); color: var(--ink); }
.btn-arrow::after{ content:"→"; transition: transform .15s ease; }
.btn-arrow:hover::after{ transform: translateX(3px); }

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background: var(--slate-deep);
  color: var(--paper);
  overflow:hidden;
}
.hero-grid{
  display:grid; grid-template-columns: 1.05fr 0.95fr; align-items:center;
  min-height: 640px;
}
.hero-copy{ padding: 70px var(--gutter) 70px calc(var(--gutter) + 0px); position:relative; z-index:2; }
.hero-copy h1{
  font-size: clamp(34px, 4.4vw, 58px);
  line-height: 1.06;
  color: var(--paper);
  max-width: 14ch;
}
.hero-copy h1 em{ font-style:normal; color: var(--brass); }
.hero-copy .lede{
  margin-top: 22px; max-width: 46ch;
  font-size: 17px; color: #CFC9C0;
}
.hero-actions{ display:flex; gap:14px; margin-top: 36px; flex-wrap:wrap; }
.hero-media{ position:relative; height:100%; min-height: 640px; }
.hero-media img{ width:100%; height:100%; object-fit:cover; }
.hero-media::before{
  content:""; position:absolute; inset:0;
  background: linear-gradient(100deg, var(--slate-deep) 0%, transparent 22%);
}
.hero-nest{
  position:absolute; inset:0; z-index:1; opacity:0.16; pointer-events:none;
}
@media (max-width: 920px){
  .hero-grid{ grid-template-columns: 1fr; }
  .hero-media{ min-height: 320px; order:-1; }
  .hero-copy{ padding: 44px var(--gutter) 54px; }
}

/* stat strip under hero */
.stat-strip{ background: var(--ink); color: var(--paper); }
.stat-strip .container{
  display:grid; grid-template-columns: repeat(4,1fr);
  gap: 0;
}
.stat{
  padding: 26px var(--gutter) 26px 0;
  border-right: 1px solid var(--line-on-dark);
}
.stat:last-child{ border-right:none; }
.stat b{ display:block; font-family: var(--f-display); font-size: 26px; color: var(--paper); }
.stat span{ font-family: var(--f-mono); font-size: 11.5px; letter-spacing:0.08em; text-transform:uppercase; color:#B9B4AC; }
@media (max-width: 760px){
  .stat-strip .container{ grid-template-columns: repeat(2,1fr); }
  .stat{ padding: 20px 16px; border-bottom: 1px solid var(--line-on-dark); border-right: none; }
}

/* ---------- Sections ---------- */
section{ padding: 96px 0; }
.section-tight{ padding: 64px 0; }
.section-head{
  display:flex; justify-content:space-between; align-items:flex-end; gap: 40px;
  margin-bottom: 52px;
}
.section-head h2{ font-size: clamp(26px,3vw,40px); max-width: 16ch; }
.section-head .desc{ max-width: 38ch; color: var(--ink-soft); font-size:15.5px; }
.on-dark{ background: var(--slate-deep); color: var(--paper); }
.on-dark h2{ color: var(--paper); }
.on-dark .desc, .on-dark p{ color: #C9C4BB; }
.bg-alt{ background: var(--paper-alt); }

.hr{ height:1px; background: var(--line); border:none; margin: 0; }

/* ---------- Nesting diagram signature (SVG pattern via CSS bg or inline) ---------- */
.cut-divider{
  display:flex; align-items:center; gap:16px; margin: 6px 0 40px;
  font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.1em; color: var(--mocha-deep); text-transform:uppercase;
}
.cut-divider .ln{ flex:1; height:1px; background: repeating-linear-gradient(90deg, var(--line) 0 6px, transparent 6px 10px); }

/* ---------- Cards: value props / pillars ---------- */
.pillars{ display:grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--line); border:1px solid var(--line); }
.pillar{ background: var(--paper); padding: 36px 30px; }
.pillar .num{ font-family: var(--f-mono); font-size:12px; color: var(--mocha-deep); }
.pillar h3{ font-size: 20px; margin: 16px 0 10px; }
.pillar p{ color: var(--ink-soft); font-size: 14.5px; }
@media (max-width: 820px){ .pillars{ grid-template-columns: 1fr; } }

/* ---------- Catalog / product grid ---------- */
.catalog-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.catalog-card{ background: var(--white); border:1px solid var(--line); }
.catalog-media{ position:relative; aspect-ratio: 4/3; overflow:hidden; }
.catalog-media img{ width:100%; height:100%; object-fit:cover; transition: transform .5s ease; }
.catalog-card:hover .catalog-media img{ transform: scale(1.045); }
.catalog-code{
  position:absolute; top:12px; left:12px;
  font-family: var(--f-mono); font-size:10.5px; letter-spacing:0.06em;
  background: rgba(32,31,36,0.82); color: var(--paper);
  padding: 5px 9px;
}
.catalog-body{ padding: 20px 22px 24px; }
.catalog-body h3{ font-size: 17px; margin-bottom:8px; }
.catalog-body p{ font-size:13.5px; color: var(--ink-soft); }
@media (max-width: 920px){ .catalog-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 620px){ .catalog-grid{ grid-template-columns: 1fr; } }

/* segmented tabs (Commercial / Residential) */
.segment-tabs{ display:flex; gap:10px; margin-bottom: 40px; flex-wrap:wrap; }
.segment-tab{
  font-family: var(--f-mono); font-size:12.5px; letter-spacing:0.06em; text-transform:uppercase;
  padding: 12px 22px; border:1px solid var(--ink); background:transparent; color: var(--ink);
}
.segment-tab.is-active{ background: var(--ink); color: var(--paper); }
.segment-panel{ display:none; }
.segment-panel.is-active{ display:block; }

/* ---------- Split feature (image + text) ---------- */
.split{ display:grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items:center; }
.split.reverse .split-media{ order:2; }
.split-media img{ width:100%; aspect-ratio: 6/5; object-fit:cover; }
.split-copy .eyebrow{ margin-bottom:16px; }
.split-copy h2{ font-size: clamp(24px,2.8vw,34px); margin-bottom:18px; }
.split-copy p{ color: var(--ink-soft); margin-bottom: 16px; font-size:15.5px; }
@media (max-width: 860px){
  .split{ grid-template-columns:1fr; gap:32px; }
  .split.reverse .split-media{ order:0; }
}

/* checklist */
.check-list li{ position:relative; padding-left: 26px; margin-bottom:10px; font-size:14.5px; color: var(--ink-soft); }
.check-list li::before{ content:"—"; position:absolute; left:0; color: var(--brass); font-family: var(--f-mono); }

/* ---------- process / steps ---------- */
.process{ counter-reset: step; display:grid; grid-template-columns: repeat(4,1fr); gap:1px; background: var(--line); border:1px solid var(--line); }
.step{ background: var(--paper); padding: 32px 26px 30px; position:relative; }
.step .step-code{ font-family: var(--f-mono); font-size:11px; color: var(--mocha-deep); letter-spacing:0.08em; }
.step h3{ font-size:17px; margin:14px 0 8px; }
.step p{ font-size:13.5px; color: var(--ink-soft); }
@media (max-width: 920px){ .process{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 560px){ .process{ grid-template-columns: 1fr; } }

/* ---------- Machine list (infrastructure) ---------- */
.machine-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:28px; }
.machine-card{ text-align:left; }
.machine-media{ background: #fff; border:1px solid var(--line); aspect-ratio: 4/3; display:flex; align-items:center; justify-content:center; padding: 18px; margin-bottom:14px; }
.machine-media img{ max-height:100%; width:auto; object-fit:contain; }
.machine-card h3{ font-size:15.5px; margin-bottom:4px; }
.machine-card span{ font-family: var(--f-mono); font-size:11.5px; color: var(--mocha-deep); text-transform:uppercase; letter-spacing:0.06em; }
@media (max-width: 820px){ .machine-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 520px){ .machine-grid{ grid-template-columns: 1fr; } }

/* ---------- Audience grid (for architects page) ---------- */
.audience-grid{ display:grid; grid-template-columns: repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.audience-card{ background:var(--paper); padding:26px 22px; }
.audience-card h4{ font-size:14.5px; margin-bottom:6px; }
.audience-card p{ font-size:13px; color:var(--ink-soft); }
@media (max-width: 920px){ .audience-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 520px){ .audience-grid{ grid-template-columns: 1fr; } }

/* ---------- Gallery / lightbox ---------- */
.gallery-filters{ display:flex; gap:10px; margin-bottom:36px; flex-wrap:wrap; }
.gallery-grid{ column-count: 3; column-gap: 22px; }
.gallery-item{ break-inside: avoid; margin-bottom: 22px; position:relative; cursor:zoom-in; overflow:hidden; }
.gallery-item img{ width:100%; display:block; transition: transform .4s ease; }
.gallery-item:hover img{ transform: scale(1.03); }
.gallery-tag{
  position:absolute; bottom:10px; left:10px;
  font-family: var(--f-mono); font-size:10.5px; letter-spacing:.05em; text-transform:uppercase;
  background: rgba(32,31,36,0.82); color:var(--paper); padding:5px 9px;
}
@media (max-width: 920px){ .gallery-grid{ column-count:2; } }
@media (max-width: 560px){ .gallery-grid{ column-count:1; } }

.lightbox{
  position:fixed; inset:0; background: rgba(20,19,22,0.94); z-index: 1000;
  display:none; align-items:center; justify-content:center; padding: 40px;
}
.lightbox.open{ display:flex; }
.lightbox img{ max-width: 90vw; max-height: 84vh; object-fit:contain; }
.lightbox-close{
  position:absolute; top:24px; right:28px; background:none; border:none;
  color:var(--paper); font-size:28px; line-height:1;
}

/* ---------- CTA band ---------- */
.cta-band{
  background: var(--slate-deep); color: var(--paper);
  padding: 74px 0;
}
.cta-band .container{ display:flex; align-items:center; justify-content:space-between; gap:40px; flex-wrap:wrap; }
.cta-band h2{ color: var(--paper); font-size: clamp(24px,3vw,36px); max-width: 20ch; }
.cta-actions{ display:flex; gap:14px; flex-wrap:wrap; }

/* ---------- Quote ---------- */
.quote-block{ border-left: 2px solid var(--brass); padding-left: 28px; max-width: 60ch; }
.quote-block p{ font-family: var(--f-display); font-size: clamp(19px,2.1vw,26px); line-height:1.4; color: var(--ink); }
.quote-block cite{ display:block; margin-top:16px; font-style:normal; font-family: var(--f-mono); font-size:12.5px; color: var(--ink-soft); }

/* ---------- Timeline (vision/mission/goals, roadmap) ---------- */
.vmg-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap: 40px; }
.vmg-card .eyebrow{ margin-bottom:14px; }
.vmg-card p{ color: var(--ink-soft); font-size:15px; }
@media (max-width: 820px){ .vmg-grid{ grid-template-columns:1fr; gap:36px; } }

/* ---------- Form ---------- */
.contact-layout{ display:grid; grid-template-columns: 1fr 1fr; gap: 70px; }
.field{ margin-bottom: 20px; }
.field label{ display:block; font-family: var(--f-mono); font-size:11.5px; letter-spacing:0.06em; text-transform:uppercase; color: var(--ink-soft); margin-bottom:8px; }
.field input, .field textarea, .field select{
  width:100%; padding: 13px 14px; border:1px solid var(--line); background: var(--white);
  font-family: var(--f-body); font-size:14.5px; color:var(--ink); border-radius: var(--radius);
}
.field textarea{ resize: vertical; min-height: 120px; }
.field-row{ display:grid; grid-template-columns: 1fr 1fr; gap:16px; }
.form-note{ font-size:12.5px; color: var(--ink-soft); margin-top:6px; }
.info-list{ margin-top: 8px; }
.info-list li{ padding: 18px 0; border-bottom:1px solid var(--line); }
.info-list li span{ display:block; font-family: var(--f-mono); font-size:11px; letter-spacing:0.08em; text-transform:uppercase; color: var(--mocha-deep); margin-bottom:6px; }
.info-list li strong{ font-size:16px; font-weight:500; }
.map-embed{ border:1px solid var(--line); margin-top:26px; height:260px; overflow:hidden; }
.map-embed iframe{ width:100%; height:100%; border:0; filter: grayscale(0.3) contrast(1.05); }
@media (max-width: 860px){ .contact-layout{ grid-template-columns:1fr; gap:44px; } .field-row{ grid-template-columns:1fr; } }

/* ---------- Footer ---------- */
.site-footer{ background: var(--ink); color: #B9B4AC; padding: 70px 0 30px; }
.footer-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 50px; }
.footer-brand img{ height:28px; margin-bottom:16px; }
.footer-brand p{ font-size:13.5px; max-width:32ch; color:#9C978F; }
.footer-col h4{ font-family: var(--f-mono); font-size:11.5px; letter-spacing:0.08em; text-transform:uppercase; color:#D8D3C9; margin-bottom:18px; }
.footer-col li{ margin-bottom: 11px; font-size:13.5px; }
.footer-col a:hover{ color: var(--paper); }
.footer-bottom{
  border-top: 1px solid rgba(246,243,238,0.1); padding-top: 22px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
  font-family: var(--f-mono); font-size:11.5px; letter-spacing:0.03em; color:#87837B;
}
@media (max-width: 820px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px){ .footer-grid{ grid-template-columns: 1fr; } }

/* ---------- Page header (interior pages) ---------- */
.page-hero{ background: var(--slate-deep); color: var(--paper); padding: 64px 0 56px; }
.page-hero h1{ color: var(--paper); font-size: clamp(30px,4vw,46px); max-width: 18ch; }
.page-hero .lede{ margin-top:16px; max-width: 54ch; color:#C9C4BB; font-size:15.5px; }
.breadcrumb{ font-family: var(--f-mono); font-size:11.5px; letter-spacing:0.06em; text-transform:uppercase; color:#B9B4AC; margin-bottom:18px; }
.breadcrumb a:hover{ color: var(--paper); }

/* reveal-on-scroll (subtle) */
.reveal{ opacity:0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform:none; }