/* =====================================================================
   construction.applied8.org — Design System v2
   Aesthetic: "precision worksite" — blueprint drafting, steel + safety amber.
   Hard-edged, engineering-detailed, trustworthy. Not rounded/templated.
   Palette: blue-graphite ink · steel blue-grey · safety amber · warm bone.
   Type: Archivo (condensed engineering display) + Inter (body).
   ===================================================================== */
:root {
  /* colour */
  --ink:        #0e1522;   /* near-black blue-graphite */
  --ink-soft:   #1b2637;
  --ink-mid:    #263247;
  --steel:      #47618a;   /* steel blue-grey */
  --steel-dark: #344b6e;
  --amber:      #f2a30c;   /* safety-amber CTA */
  --amber-deep: #cc8500;
  --amber-wash: #fff3d6;
  --bone:       #f4f1ea;   /* light band */
  --paper:      #ffffff;
  --line:       #e2ddd1;
  --line-strong:#c8c0ac;
  --muted:      #5d6775;
  --danger:     #c0392b;

  /* type */
  --font-display: "Archivo", "Archivo Narrow", "Helvetica Neue", Arial, sans-serif;
  --font-body:    "Inter", "Segoe UI", system-ui, sans-serif;
  --fs-display: clamp(2.5rem, 5.4vw, 4.1rem);
  --fs-1: clamp(2.1rem, 4.6vw, 3.2rem);
  --fs-2: clamp(1.5rem, 3.2vw, 2.15rem);
  --fs-3: clamp(1.15rem, 1.8vw, 1.4rem);
  --fs-body: 1.0625rem;
  --fs-small: 0.9rem;

  /* spacing */
  --sp-1: 0.5rem; --sp-2: 1rem; --sp-3: 1.5rem; --sp-4: 2.5rem; --sp-5: 4rem;

  /* radius & shadow (deliberately restrained — precision, not pill) */
  --r: 10px;
  --r-sm: 6px;
  --shadow: 0 12px 30px -14px rgba(14,21,34,.28);
  --shadow-lg: 0 24px 60px -28px rgba(14,21,34,.38);

  /* layout */
  --container: 1180px;
  --nav-h: 78px;
}

/* ---------- reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.68;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.12; margin: 0 0 .5em; letter-spacing: -0.01em; }
h1 { font-size: var(--fs-1); }
h2 { font-size: var(--fs-2); }
h3 { font-size: var(--fs-3); }
p  { margin: 0 0 1rem; }
a  { color: inherit; }
img { max-width: 100%; display: block; }
ul { padding-left: 1.25rem; }
::selection { background: var(--amber); color: var(--ink); }

.container { width: min(var(--container), 92%); margin-inline: auto; }

/* ---------- signature: blueprint crop-mark framing ---------- */
.frame-marks { position: relative; }
.frame-marks::before, .frame-marks::after {
  content: ""; position: absolute; width: 16px; height: 16px; z-index: 3; pointer-events: none;
}
.frame-marks::before { top: 10px; left: 10px; border-top: 2px solid var(--amber); border-left: 2px solid var(--amber); }
.frame-marks::after { bottom: 10px; right: 10px; border-bottom: 2px solid var(--amber); border-right: 2px solid var(--amber); }

/* dimension-tick eyebrow */
.eyebrow, .hero .eyebrow {
  display: inline-flex; align-items: center; gap: .55rem;
  font-family: var(--font-body);
  font-size: .78rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  margin-bottom: .8rem;
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: currentColor; flex: none; }

/* ---------- header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: var(--ink);
  color: var(--paper);
  box-shadow: 0 2px 0 #000, 0 14px 30px -18px rgba(0,0,0,.6);
  border-bottom: 3px solid var(--amber);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); gap: 1rem; }
.brand { font-family: var(--font-display); font-weight: 800; font-size: 1.32rem; letter-spacing: .5px; text-decoration: none; display: flex; align-items: center; gap: .7rem; color: #fff; }
.brand .mark {
  width: 38px; height: 38px; border-radius: 8px; background: var(--amber); color: var(--ink);
  display: grid; place-items: center; font-weight: 900; font-size: 1.2rem;
  box-shadow: inset 0 -3px 0 rgba(0,0,0,.15);
}
.brand small { display:block; font-family:var(--font-body); font-weight:600; font-size:.6rem; letter-spacing:.22em; text-transform:uppercase; color:var(--steel); line-height:1; }
.nav-links { display: flex; gap: .3rem; list-style: none; margin: 0; padding: 0; align-items: center; }
.nav-links a {
  text-decoration: none; color: #cfd6e0; font-weight: 600; font-size: .96rem;
  padding: .55rem .8rem; border-radius: 6px; transition: color .15s, background .15s; white-space: nowrap;
}
.nav-links a:hover { color: var(--amber); background: rgba(255,255,255,.05); }
.nav-links .active a { color: #fff; }
.nav-cta .btn { font-size: .92rem; }
.nav-toggle { display: none; background: none; border: 0; color: #fff; font-size: 1.7rem; cursor: pointer; line-height: 1; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  padding: .92rem 1.6rem; border-radius: 8px;
  font-family: var(--font-display); font-weight: 700; text-decoration: none;
  transition: transform .12s ease, background .15s ease, box-shadow .15s ease, border-color .15s;
  cursor: pointer; border: 2px solid transparent; line-height: 1;
  position: relative;
}
.btn-amber { background: var(--amber); color: var(--ink); }
.btn-amber:hover { background: var(--amber-deep); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-outline { border-color: rgba(255,255,255,.75); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.12); transform: translateY(-2px); }
.btn-dark { background: var(--ink); color: #fff; border-color: var(--ink); }
.btn-dark:hover { background: var(--ink-soft); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-block { display: flex; width: 100%; text-align: center; }

/* hazard-tape underline for primary CTAs */
.btn-amber::after {
  content:""; position:absolute; left:12px; right:12px; bottom:6px; height:4px;
  background: repeating-linear-gradient(45deg,#0e1522 0 6px, transparent 6px 12px);
  opacity:0; transition:opacity .15s;
}
.btn-amber:hover::after { opacity:1; }

/* ---------- hero ---------- */
.hero {
  position: relative; color: #fff; overflow: hidden;
  background:
    radial-gradient(80% 70% at 82% 8%, rgba(71,97,138,.35), transparent 55%),
    radial-gradient(60% 60% at 6% 92%, rgba(242,163,12,.16), transparent 55%),
    linear-gradient(118deg, #0e1522 0%, #16223a 58%, #162139 100%);
}
.hero::before { /* blueprint grid */
  content:""; position:absolute; inset:0; opacity:.5; pointer-events:none;
  background-image:
    linear-gradient(rgba(120,150,190,.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,150,190,.10) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(120% 100% at 50% 0%, #000 40%, transparent 82%);
  -webkit-mask-image: radial-gradient(120% 100% at 50% 0%, #000 40%, transparent 82%);
}
.hero-inner { padding: clamp(4rem, 10vw, 7.5rem) 0; position: relative; z-index: 2; max-width: 800px; }
.hero .eyebrow { color: var(--amber); }
.hero h1 { font-family: var(--font-display); font-size: var(--fs-display); font-weight: 800; letter-spacing: -0.015em; }
.hero h1 .accent { color: var(--amber); }
.hero p.lede { font-size: clamp(1.1rem, 2vw, 1.35rem); color: #d7dce6; max-width: 640px; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 1.8rem; }
.hero-badges {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px,1fr));
  gap: 1px; margin-top: 3rem; list-style: none; padding: 0;
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14);
}
.hero-badges li { padding: 1.1rem 1.3rem; background: rgba(10,15,26,.6); position:relative; }
.hero-badges li::first-line {}
.hero-badges strong { display: block; font-size: 1.7rem; color: var(--amber); font-family: var(--font-display); line-height:1; margin-bottom:.3rem; }
.hero-badges .lbl { font-size: .85rem; color: #cfd6e0; }

/* ---------- band background (hero image overlay) ---------- */
.bg-placeholder {
  position: absolute; inset: 0; z-index: 1; opacity: 1;
  background-size: cover; background-position: center;
}
.bg-placeholder::after { /* scrim for text legibility */
  content:""; position:absolute; inset:0;
  background: linear-gradient(90deg, rgba(14,21,34,.86) 0%, rgba(14,21,34,.45) 60%, rgba(14,21,34,.15) 100%);
}
/* when no inline image, still keep the gradient band behind the grid */
.bg-placeholder:empty::before {
  content:""; position:absolute; inset:0;
  background: linear-gradient(120deg,#16223a,#162139);
}

/* ---------- sections ---------- */
.section { padding: clamp(3.2rem, 7vw, 6rem) 0; position: relative; }
.section-bone { background: var(--bone); }
.section-dark { background: var(--ink); color: #dfe3ea; }
.section-dark h1, .section-dark h2, .section-dark h3 { color: #fff; }
.eyebrow { color: var(--amber-deep); }
.section-head { max-width: 720px; margin-bottom: var(--sp-4); }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head.center .eyebrow { justify-content: center; }
.section-head.center .eyebrow::before { display:none; }
.section-head p { color: var(--muted); }

/* ---------- grid helpers ---------- */
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }
@media (min-width: 640px) { .grid-2 { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 900px) {
  .grid-3 { grid-template-columns: repeat(3,1fr); }
  .grid-4 { grid-template-columns: repeat(4,1fr); }
}

/* ---------- cards ---------- */
.card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--r);
  padding: 1.6rem; box-shadow: 0 2px 8px rgba(14,21,34,.04);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s;
  position: relative; border-top: 3px solid transparent;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: var(--line-strong); border-top-color: var(--amber); }
.section-bone .card { }
.card .icon {
  font-size: 1.9rem; margin-bottom: .8rem;
  width: 54px; height: 54px; border-radius: 10px; background: var(--ink); color: var(--amber);
  display: grid; place-items: center; position: relative;
}
.card .icon::after {
  content:""; position:absolute; inset:auto 0 0 0; height:3px;
  background: repeating-linear-gradient(90deg, var(--amber) 0 6px, transparent 6px 12px);
  opacity:.7;
}
.card h3 { font-size: 1.18rem; margin-bottom: .4rem; }
.card p { color: var(--muted); font-size: .97rem; }
.section-bone .card { background: #fff; }

/* ---------- before/after slider ---------- */
.ba { position: relative; border-radius: var(--r); overflow: hidden; aspect-ratio: 4/3; background: #171c26; user-select: none; box-shadow: var(--shadow); }
.ba > div { position: absolute; inset: 0; background-size: cover; background-position: center; }
.ba .after { clip-path: inset(0 0 0 50%); }
.ba .divider { position: absolute; top: 0; bottom: 0; left: 50%; width: 3px; background: var(--amber); transform: translateX(-50%); box-shadow: 0 0 8px rgba(242,163,12,.5); }
.ba .handle {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--amber); color: #111; display: grid; place-items: center; font-weight: 900;
  cursor: ew-resize; box-shadow: 0 0 0 5px rgba(242,163,12,.25), 0 8px 24px rgba(0,0,0,.4);
}
.ba .tag { position: absolute; top: 12px; padding: .3rem .7rem; font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .12em; border-radius: 4px; }
.ba .tag.before { left: 12px; background: rgba(10,15,26,.7); color: #fff; border:1px solid rgba(255,255,255,.2); }
.ba .tag.after  { right: 12px; background: var(--amber); color: #111; }

/* ---------- gallery ---------- */
.gallery { display: grid; gap: 1.1rem; grid-template-columns: repeat(auto-fill, minmax(270px,1fr)); }
.gallery figure { margin: 0; position: relative; overflow: hidden; border-radius: var(--r); aspect-ratio: 4/3; background: #1b2230; box-shadow: var(--shadow-sm, 0 6px 18px -12px rgba(0,0,0,.3)); }
.gallery img, .gallery .ph { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.gallery figure:hover img { transform: scale(1.05); }
.gallery figcaption {
  position: absolute; inset: auto 0 0; padding: .7rem 1rem;
  background: linear-gradient(transparent, rgba(10,15,26,.82)); color: #fff; font-size: .86rem;
  font-family: var(--font-display); font-weight: 600; letter-spacing:.01em;
}
.gallery figure::after { /* crop-mark framing on hover */
  content:""; position:absolute; inset:10px; pointer-events:none; opacity:0; transition:opacity .3s;
  border-top:1.5px solid var(--amber); border-left:1.5px solid var(--amber);
}
.gallery figure:hover::after { opacity:1; }
.ph { display:grid; place-items:center; color:#8a92a0; background:repeating-linear-gradient(45deg,#ece9e2,#ece9e2 12px,#e2ded4 12px,#e2ded4 24px); font-size:.8rem; text-align:center; padding:1rem; }

/* ---------- quote / forms ---------- */
.form-grid { display: grid; gap: 1.1rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { .form-grid { grid-template-columns: 1fr 1fr; } }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: .35rem; }
.field input, .field select, .field textarea {
  width: 100%; padding: .8rem .95rem; border: 1px solid var(--line-strong); border-radius: 8px;
  font: inherit; background: #fff; color: var(--ink); transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--amber); box-shadow: 0 0 0 3px rgba(242,163,12,.25);
}
.field .error { color: var(--danger); font-size: .82rem; margin-top: .25rem; display: block; min-height: 1.1em; }
.hp-field { position: absolute !important; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-status { margin-top: 1rem; padding: .9rem 1.1rem; border-radius: var(--r-sm); font-weight: 600; display: none; }
.form-status.ok { display: block; background: #e7f6ec; color: #1e7d3c; border: 1px solid #b7e6c6; }
.form-status.err { display: block; background: #fdeceb; color: var(--danger); border: 1px solid #f5c6c2; }

/* ---------- testimonials ---------- */
.tst { font-style: normal; position: relative; }
.tst::before { content: "\201C"; font-family: var(--font-display); font-size: 4rem; line-height:.5; color: var(--amber); display:block; margin-bottom:.6rem; }
.tst .quote { font-size: 1.06rem; color: var(--ink-soft); }
.tst .who { margin-top: 1rem; font-weight: 700; }
.tst .role { color: var(--muted); font-size: .9rem; }

/* ---------- FAQ ---------- */
.faq details { background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: .1rem 1.3rem; margin-bottom: .8rem; transition: border-color .15s, box-shadow .15s; }
.faq details[open] { border-color: var(--amber); box-shadow: var(--shadow-sm, 0 6px 18px -12px rgba(0,0,0,.2)); }
.faq summary { cursor: pointer; font-weight: 700; font-family: var(--font-display); padding: 1rem 0; list-style:none; display:flex; justify-content:space-between; align-items:center; }
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+"; font-size:1.4rem; color:var(--amber); font-weight:600; transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p { margin: 0 0 1rem; color: var(--muted); }

/* ---------- service-area / contact strip (hazard CTA) ---------- */
.cta-strip {
  position: relative; background: var(--amber); color: var(--ink); text-align: center;
  padding: clamp(2.8rem, 6.5vw, 4.5rem) 0; overflow: hidden;
}
.cta-strip::before, .cta-strip::after {
  content:""; position:absolute; top:0; bottom:0; width:18px;
  background: repeating-linear-gradient(135deg, #0e1522 0 8px, transparent 8px 16px);
  opacity:.85;
}
.cta-strip::before { left: 0; }
.cta-strip::after { right: 0; }
.cta-strip h2 { font-size: clamp(1.7rem, 3.5vw, 2.6rem); margin-bottom: .4rem; }
.cta-strip p { max-width: 640px; margin: 0 auto 1.6rem; font-weight:500; }
.cta-strip .btn { background: var(--ink); color: #fff; }
.cta-strip .btn::after { background: repeating-linear-gradient(45deg, var(--amber) 0 6px, transparent 6px 12px); }
.cta-strip .btn:hover { background: #000; }
.contact-cards { display: grid; gap: 1.2rem; grid-template-columns: 1fr; }
@media (min-width: 700px) { .contact-cards { grid-template-columns: repeat(3,1fr); } }
.contact-card { text-align: center; }
.contact-card .big { font-size: 2rem; margin-bottom: .4rem; }
.contact-card a { color: var(--steel-dark); font-weight: 700; text-decoration: none; word-break: break-all; }
.contact-card a:hover { text-decoration: underline; }

/* ---------- footer ---------- */
.site-footer { background: #0a0f18; color: #a8b0bd; padding: var(--sp-4) 0 0; font-size: .94rem; border-top: 4px solid var(--amber); }
.site-footer .grid { grid-template-columns: 1fr; }
@media (min-width: 760px) { .site-footer .grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.site-footer h4 { color: #fff; font-size: .82rem; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 1rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: .5rem; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--amber); }
.footer-bottom { border-top: 1px solid #1b2230; margin-top: var(--sp-4); padding: 1.2rem 0; text-align: center; color: #5d6775; font-size: .85rem; }

/* ---------- page hero (interior) ---------- */
.page-hero {
  position: relative; background: linear-gradient(118deg, #0e1522, #1d2a44 70%); color: #fff; padding: 3.5rem 0;
  border-bottom: 3px solid var(--amber);
}
.page-hero::before {
  content:""; position:absolute; inset:0; opacity:.4; pointer-events:none;
  background-image:
    linear-gradient(rgba(120,150,190,.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,150,190,.10) 1px, transparent 1px);
  background-size: 44px 44px;
}
.page-hero > * { position: relative; z-index: 2; }
.page-hero h1 { margin-bottom: .3rem; }
.page-hero p { color: #c8d0dc; max-width: 720px; }

/* ---------- breadcrumb ---------- */
.crumbs { font-size: .85rem; color: var(--sage, #9fb0c6); margin-bottom: 1.5rem; display:flex; gap:.4rem; flex-wrap:wrap; }
.crumbs a { color: var(--sage, #9fb0c6); text-decoration: none; }
.crumbs a:hover { color: #fff; }
.crumbs .sep { opacity:.5; }

/* ---------- skip link / a11y ---------- */
.skip-link { position: absolute; left: -9999px; top: 0; background: #fff; color: #111; padding: .6rem 1rem; z-index: 200; }
.skip-link:focus { left: 0; }
:focus-visible { outline: 3px solid var(--amber); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* ---------- video ---------- */
.video-wrap { position: relative; border-radius: var(--r); overflow: hidden; background: #0a0f18; aspect-ratio: 16/9; display: grid; place-items: center; color: #fff; box-shadow: var(--shadow); }
.video-wrap video { width: 100%; height: 100%; object-fit: cover; }
.video-wrap .play {
  width: 74px; height: 74px; border-radius: 50%;
  background: var(--amber); color: #111; display: grid; place-items: center; font-size: 1.6rem;
  box-shadow: 0 0 0 6px rgba(242,163,12,.25);
}
/* drawing-spec caption for projects/gallery */
.spec-cap {
  font-family: var(--font-display); font-size:.7rem; letter-spacing:.14em; text-transform:uppercase;
  color: var(--muted); display:flex; align-items:center; gap:.5rem; margin-top:.6rem;
}
.spec-cap::before{content:""; width:14px; height:1.5px; background:var(--amber);}

/* ======== responsive nav ======== */
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: var(--nav-h); left: 0; right: 0; flex-direction: column; align-items: stretch;
    background: var(--ink); padding: 1rem 1.4rem 1.4rem; gap: .3rem; display: none; border-top: 1px solid #2a3547;
  }
  .nav-links li { text-align: center; }
  .nav-links a { display:block; padding:.8rem; }
  .nav-links.open { display: flex; }
  .hero-badges { grid-template-columns: 1fr; }
}