/* ==========================================================================
   Dry Lining Derby — Design tokens
   ========================================================================== */
:root{
  --charcoal:  #23262B;
  --charcoal-2:#2B2F35;
  --plaster:   #D8CBB0;
  --plaster-2: #E8DCC4;
  --slate:     #4A5560;
  --slate-2:   #647180;
  --white:     #FFFFFF;
  --offwhite:  #F6F4F0;
  --grey:      #585F63;
  --grey-2:    #8A9094;
  --line:      rgba(74,85,96,0.2);

  --display: 'Manrope', Arial, sans-serif;
  --sans:    'Inter', Arial, sans-serif;
  --mono:    'IBM Plex Mono', 'Courier New', monospace;

  --container: 1180px;
  --radius: 3px;
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0; background: var(--white); color: var(--charcoal);
  font-family: var(--sans); font-size: 16px; line-height: 1.66;
  -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(--display); margin:0; font-weight:700; letter-spacing:-0.01em; }
p{ margin:0; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}
:focus-visible{ outline: 2px solid var(--slate); outline-offset: 3px; }

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

.eyebrow{
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--slate);
}

/* ==========================================================================
   Stud-wall divider — signature motif (metal stud partition cross-section)
   ========================================================================== */
.stud-divider{ width:100%; height:36px; display:block; }
.stud-divider line.stud{ stroke: var(--line); stroke-width:2; }
.stud-divider line.track{ stroke: var(--plaster); stroke-width:2; }

/* ==========================================================================
   TWO-TIER HEADER — utility bar + logo/nav row (varied structure)
   ========================================================================== */
.utility-bar{
  background: var(--charcoal); color: var(--plaster-2);
  font-family: var(--mono); font-size:11.5px; letter-spacing:0.04em;
}
.utility-bar .wrap{ display:flex; justify-content:space-between; align-items:center; height:38px; }
.utility-bar .utility-hours{ color: rgba(232,220,196,0.7); }
.utility-bar .utility-call{ display:flex; align-items:center; gap:6px; }
.utility-bar .utility-call:hover{ color: var(--white); }
.utility-bar .utility-call svg{ width:13px; height:13px; }

.site-header{
  position: sticky; top:0; z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap{ display:flex; align-items:center; justify-content:space-between; height:78px; }
.logo{ display:flex; align-items:center; gap:12px; color: var(--charcoal); }
.logo svg{ width:36px; height:36px; flex-shrink:0; }
.logo-text{ display:flex; flex-direction:column; line-height:1.1; }
.logo-text strong{ font-family: var(--display); font-size:18px; letter-spacing:-0.01em; color: var(--charcoal); font-weight:700; }
.logo-text span{ font-family: var(--mono); font-size:9px; letter-spacing:0.1em; text-transform:uppercase; color: var(--slate); }

.main-nav{ display:flex; align-items:center; gap:24px; margin-left:auto; margin-right:28px; }
.main-nav a{
  font-family: var(--mono); font-size:11px; letter-spacing:0.04em; text-transform:uppercase;
  color: var(--grey); position:relative; padding:6px 0; white-space:nowrap;
}
.main-nav a:hover, .main-nav a[aria-current="page"]{ color: var(--charcoal); }
.main-nav a[aria-current="page"]::after{ content:''; position:absolute; left:0; right:0; bottom:-2px; height:2px; background:var(--plaster); }

.header-cta{
  background: var(--charcoal); color: var(--white);
  font-family: var(--mono); font-size:12px; letter-spacing:0.03em; text-transform:uppercase; font-weight:600;
  padding:11px 20px; border-radius: var(--radius);
  transition: background 0.2s ease;
}
.header-cta:hover{ background: var(--slate); }

.nav-toggle{
  display:none; background:none; border:1px solid var(--line);
  width:40px; height:40px; align-items:center; justify-content:center; color: var(--charcoal);
}

/* ==========================================================================
   HERO — centered single column + full-width trust bar beneath (varied)
   ========================================================================== */
.hero{ background: var(--offwhite); padding: 76px 0 0; text-align:center; }
.hero-inner{ max-width: 760px; margin: 0 auto; }
.hero h1{ font-size: clamp(2.2rem, 4.4vw, 3.4rem); line-height:1.1; color: var(--charcoal); margin: 16px 0 22px; }
.hero h1 span{ color: var(--slate); }
.hero p.lede{ font-size:1.08rem; color: var(--grey); margin: 0 auto 32px; max-width: 58ch; }
.hero-ctas{ display:flex; gap:14px; flex-wrap:wrap; justify-content:center; margin-bottom:56px; }

.btn{
  display:inline-flex; align-items:center; gap:9px; padding:14px 28px;
  font-family: var(--mono); font-size:13px; letter-spacing:0.03em; text-transform:uppercase;
  border-radius: var(--radius); border:1px solid transparent; transition: all 0.2s ease; font-weight:600;
}
.btn-charcoal{ background: var(--charcoal); color: var(--white); }
.btn-charcoal:hover{ background: var(--slate); }
.btn-outline{ border-color: var(--charcoal); color: var(--charcoal); }
.btn-outline:hover{ background: var(--charcoal); color: var(--white); }

.trust-bar{ background: var(--charcoal); padding: 0; }
.trust-bar .wrap{ display:grid; grid-template-columns: repeat(4,1fr); }
.trust-item{ padding: 26px 20px; text-align:center; border-left:1px solid rgba(216,203,176,0.15); }
.trust-item:first-child{ border-left:none; }
.trust-item b{ display:block; font-family:var(--display); font-size:1.5rem; font-weight:700; color:var(--plaster); }
.trust-item span{ font-family:var(--mono); font-size:10.5px; letter-spacing:0.06em; text-transform:uppercase; color:rgba(255,255,255,0.65); margin-top:4px; display:block; }

/* ==========================================================================
   Section framing
   ========================================================================== */
section{ padding: 76px 0; }
.section-charcoal{ background: var(--charcoal); color: var(--white); }
.section-offwhite{ background: var(--offwhite); color: var(--charcoal); }
.section-head{ max-width: 660px; margin-bottom: 44px; }
.section-head.centered{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head h2{ font-size: clamp(1.8rem, 3vw, 2.4rem); margin-top:12px; color: inherit; }
.section-head p{ margin-top:16px; color: var(--grey); font-size:1.02rem; }
.section-charcoal .section-head p{ color: #B7BCC0; }

.lead-copy{ display:grid; grid-template-columns: repeat(2, 1fr); gap:40px; font-size:1.02rem; color: var(--grey); }
.lead-copy p + p{ margin-top:14px; }

/* ==========================================================================
   ZIG-ZAG service list — alternating layout (varied from grid cards)
   ========================================================================== */
.zigzag-list{ display:flex; flex-direction:column; gap:0; }
.zigzag-row{
  display:grid; grid-template-columns: 1fr 1fr; gap:56px; align-items:center;
  padding: 44px 0; border-bottom:1px solid var(--line);
}
.zigzag-row:first-child{ padding-top:0; }
.zigzag-row:last-child{ border-bottom:none; padding-bottom:0; }
.zigzag-row:nth-child(even) .zigzag-visual{ order:2; }
.zigzag-visual{
  aspect-ratio: 4/3; background: var(--offwhite); border:1px solid var(--line);
  display:flex; align-items:center; justify-content:center;
}
.zigzag-visual svg{ width:56%; height:56%; }
.zigzag-visual svg path, .zigzag-visual svg line, .zigzag-visual svg rect, .zigzag-visual svg circle{ fill:none; stroke: var(--slate); stroke-width:1.4; }
.zigzag-text .service-label{ font-family: var(--mono); font-size:10.5px; letter-spacing:0.1em; text-transform:uppercase; color: var(--slate); display:block; margin-bottom:10px; }
.zigzag-text h3{ font-size:1.6rem; margin-bottom:12px; color: var(--charcoal); }
.zigzag-text p{ color: var(--grey); font-size:1rem; margin-bottom:16px; }
.zigzag-text .card-link{ font-family: var(--mono); font-size:11.5px; letter-spacing:0.03em; text-transform:uppercase; color: var(--charcoal); border-bottom:2px solid var(--plaster); padding-bottom:3px; }
.zigzag-text .card-link:hover{ border-color: var(--slate); }

/* ==========================================================================
   USP strip
   ========================================================================== */
.usp-row{ display:grid; grid-template-columns: repeat(4, 1fr); gap:1px; background: var(--line); border:1px solid var(--line); }
.usp-item{ background: var(--white); padding: 28px 24px; transition: transform 0.2s ease, background 0.2s ease; }
.usp-item:hover{ transform: translateY(-3px); }
.usp-item .eyebrow{ display:block; margin-bottom:12px; }
.usp-item h4{ font-size:1.05rem; margin-bottom:8px; color:var(--charcoal); }
.usp-item p{ font-size:0.92rem; color: var(--grey); }

/* ==========================================================================
   Process steps
   ========================================================================== */
.process-list{ display:grid; grid-template-columns: repeat(4, 1fr); gap:28px; }
.process-step{ position:relative; padding-top:20px; border-top:1px solid var(--line); }
.process-step .step-no{ font-family:var(--mono); font-size:13px; color: var(--slate); display:block; margin-bottom:10px; }
.process-step h4{ font-size:1.08rem; margin-bottom:8px; }
.process-step p{ color: var(--grey); font-size:0.94rem; }
.section-charcoal .process-step p{ color:#B7BCC0; }
.section-charcoal .process-step{ border-top:1px solid rgba(216,203,176,0.2); }

/* ==========================================================================
   Coverage list
   ========================================================================== */
.area-list{ display:flex; flex-wrap:wrap; gap:10px 14px; justify-content:center; }
.area-list li{ font-family: var(--mono); font-size:12.5px; color: var(--grey); padding:7px 14px; border:1px solid var(--line); }

/* ==========================================================================
   FAQ split — accordion left, contact card right (varied from full-width)
   ========================================================================== */
.faq-split{ display:grid; grid-template-columns: 1.4fr 1fr; gap:48px; align-items:start; }
.faq-list{ border-top:1px solid var(--line); }
.faq-item{ border-bottom:1px solid var(--line); }
.faq-q{
  width:100%; display:flex; align-items:center; justify-content:space-between; gap:20px;
  background:none; border:none; text-align:left; padding: 20px 4px;
  font-family: var(--display); font-size:1.04rem; color: var(--charcoal); cursor:pointer; font-weight:700;
}
.faq-q .plus{ font-family: var(--mono); color: var(--slate); font-size:20px; flex-shrink:0; transition: transform 0.2s ease; }
.faq-item[aria-expanded="true"] .plus{ transform: rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition: max-height 0.28s ease; }
.faq-a-inner{ padding: 0 4px 22px; color: var(--grey); max-width:70ch; }

.faq-contact-card{ background: var(--charcoal); color: var(--white); padding: 32px; position:sticky; top:100px; }
.faq-contact-card .eyebrow{ color: var(--plaster); display:block; margin-bottom:14px; }
.faq-contact-card h3{ font-size:1.4rem; margin-bottom:14px; color: var(--white); }
.faq-contact-card p{ color: #B7BCC0; font-size:0.95rem; margin-bottom:22px; }

/* ==========================================================================
   CTA band
   ========================================================================== */
.cta-band{ background: var(--plaster); color: var(--charcoal); padding: 52px 0; }
.cta-band .wrap{ display:flex; align-items:center; justify-content:space-between; gap:32px; flex-wrap:wrap; }
.cta-band h2{ font-size: clamp(1.5rem, 2.6vw, 2rem); color: var(--charcoal); max-width:26ch; }
.cta-band .btn-outline{ border-color: var(--charcoal); color: var(--charcoal); }
.cta-band .btn-outline:hover{ background: var(--charcoal); color: var(--plaster); }
.cta-actions{ display:flex; gap:14px; flex-wrap:wrap; }

/* ==========================================================================
   Footer — simplified 2-column (varied from 3-column)
   ========================================================================== */
.site-footer{ background: var(--charcoal); color: #B7BCC0; padding: 48px 0 24px; }
.footer-top{ display:flex; justify-content:space-between; align-items:flex-start; padding-bottom:32px; border-bottom:1px solid rgba(216,203,176,0.15); flex-wrap:wrap; gap:32px; }
.footer-brand .logo-text strong{ color: var(--white); }
.footer-brand p{ margin-top:14px; color: var(--grey-2); font-size:0.92rem; max-width:36ch; }
.footer-nav{ display:flex; gap:32px; flex-wrap:wrap; }
.footer-nav-col h5{ font-family: var(--mono); font-size:11px; letter-spacing:0.1em; text-transform:uppercase; color: var(--plaster); margin-bottom:14px; }
.footer-nav-col li{ margin-bottom:9px; font-size:0.93rem; color: #B7BCC0; }
.footer-nav-col a:hover{ color: var(--plaster-2); }
.footer-bottom{ display:flex; justify-content:space-between; padding-top:20px; font-size:12px; color: var(--grey-2); font-family: var(--mono); flex-wrap:wrap; gap:10px; }

/* ==========================================================================
   Inner-page hero
   ========================================================================== */
.page-hero{ background: var(--offwhite); color: var(--charcoal); padding: 56px 0 48px; text-align:center; border-bottom:1px solid var(--line); }
.page-hero h1{ color:var(--charcoal); font-size: clamp(1.9rem, 3.7vw, 2.6rem); margin-top:14px; }
.page-hero p{ color: var(--grey); max-width:58ch; margin: 16px auto 0; }

.values-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap:1px; background: var(--line); border:1px solid var(--line); }
.value-card{ background: var(--white); padding:26px; transition: transform 0.2s ease; }
.value-card:hover{ transform: translateY(-3px); }
.value-card h3{ font-size:1.12rem; margin-bottom:8px; }
.value-card p{ color: var(--grey); font-size:0.94rem; }

/* ==========================================================================
   Contact page
   ========================================================================== */
.contact-layout{ display:grid; grid-template-columns: 1fr; gap:56px; max-width:640px; margin:0 auto; }
.contact-detail{ display:flex; gap:16px; padding: 18px 0; border-bottom:1px solid var(--line); }
.contact-detail:first-child{ border-top:1px solid var(--line); }
.contact-detail svg{ width:20px; height:20px; color: var(--slate); flex-shrink:0; margin-top:2px; }
.contact-detail h4{ font-family:var(--mono); font-size:11.5px; letter-spacing:0.1em; text-transform:uppercase; color: var(--slate); margin-bottom:6px; }
.contact-detail p, .contact-detail a{ font-size:1rem; color: var(--charcoal); }
.contact-detail a:hover{ color: var(--slate); }
.map-frame{ border:1px solid var(--line); height:260px; margin-top:28px; filter: grayscale(0.3) contrast(1.05); }
.map-frame iframe{ width:100%; height:100%; border:0; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 980px){
  .lead-copy{ grid-template-columns:1fr; }
  .zigzag-row{ grid-template-columns:1fr; gap:24px; }
  .zigzag-row:nth-child(even) .zigzag-visual{ order:0; }
  .trust-bar .wrap{ grid-template-columns:1fr 1fr; }
  .usp-row{ grid-template-columns:1fr 1fr; }
  .process-list{ grid-template-columns:1fr 1fr; }
  .values-grid{ grid-template-columns:1fr; }
  .faq-split{ grid-template-columns:1fr; }
  .faq-contact-card{ position:static; }
}
@media (max-width: 760px){
  .utility-bar .utility-hours{ display:none; }
  .main-nav{
    position:fixed; inset: 116px 0 0 0; background: var(--white);
    flex-direction:column; align-items:flex-start; padding: 32px 28px; gap:22px;
    transform: translateX(100%); transition: transform 0.25s ease; margin:0;
    border-top: 1px solid var(--line); z-index:99;
  }
  .main-nav.open{ transform: translateX(0); }
  .nav-toggle{ display:flex; }
  .header-cta{ display:none; }
  .trust-bar .wrap{ grid-template-columns:1fr 1fr; }
  .usp-row{ grid-template-columns:1fr; }
  .process-list{ grid-template-columns:1fr; }
  .footer-top{ flex-direction:column; }
  .footer-bottom{ flex-direction:column; }
}