/* ==========================================================================
   Clarke Building Projects — Website Redesign
   Palette: Clarke's own green / white / black.
   Structure and pacing inspired by flackbuilt.com.au: sticky phone-forward
   header, full-bleed real project photography, project cards with "View
   project", horizontal service-area band, FAQ accordion, social strip.
   Single confident sans-serif type system (Archivo) — no decorative serif.
   ========================================================================== */

:root {
  --white: #ffffff;
  --offwhite: #f6f8f6;
  --black: #101211;
  --black-2: #171b18;
  --green: #1d6b43;
  --green-dark: #12492c;
  --green-light: #4fa377;
  --gray: #5a5f5a;
  --gray-light: #8d928c;
  --line: #e1e5e0;

  --font: "Archivo", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container: 1200px;
  --gap: clamp(1.5rem, 3vw, 3rem);
  --radius: 3px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--white);
  color: var(--black);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

h1, h2, h3, h4 {
  font-family: var(--font);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0;
}

h2 { font-size: clamp(1.9rem, 3.4vw, 2.7rem); }
h3 { font-size: clamp(1.15rem, 1.8vw, 1.4rem); font-weight: 700; }

.eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 0.85rem;
}

p { margin: 0 0 1rem; color: var(--gray); }
.lede { font-size: 1.08rem; color: var(--gray); max-width: 46ch; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.95rem 1.9rem;
  border-radius: var(--radius);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.15s ease;
}
.btn-primary { background: var(--green); color: var(--white); }
.btn-primary:hover { background: var(--green-dark); transform: translateY(-1px); }
.btn-outline { border-color: currentColor; color: var(--black); background: transparent; }
.btn-outline:hover { background: var(--black); color: var(--white); border-color: var(--black); }
.btn-outline.on-dark { color: var(--white); }
.btn-outline.on-dark:hover { background: var(--white); color: var(--black); }
.btn-sm { padding: 0.7rem 1.4rem; font-size: 0.74rem; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled { border-color: var(--line); box-shadow: 0 4px 24px rgba(16,18,17,0.06); }
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 1.1rem; padding-bottom: 1.1rem;
}
.logo { display: flex; align-items: center; gap: 0.7rem; }
.logo img { height: 40px; width: auto; }
.logo-text { display: flex; flex-direction: column; line-height: 1.05; }
.logo-text strong { font-weight: 800; font-size: 1.15rem; letter-spacing: -0.01em; }
.logo-text span {
  font-size: 0.6rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--gray-light); margin-top: 0.25rem;
}
.main-nav { display: flex; align-items: center; gap: 2.4rem; }
.main-nav ul { list-style: none; display: flex; gap: 2.1rem; margin: 0; padding: 0; }
.main-nav a:not(.btn) {
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  padding-bottom: 0.3rem; border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.main-nav a:not(.btn):hover, .main-nav a.active:not(.btn) { border-color: var(--green); color: var(--green-dark); }
.nav-cta { display: flex; align-items: center; gap: 1.3rem; }
.nav-phone { font-weight: 700; font-size: 0.85rem; white-space: nowrap; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; width: 26px; height: 20px; position: relative; }
.nav-toggle span, .nav-toggle::before, .nav-toggle::after {
  content: ""; position: absolute; left: 0; right: 0; height: 2px; background: var(--black);
}
.nav-toggle span { top: 9px; }
.nav-toggle::before { top: 0; }
.nav-toggle::after { bottom: 0; }

/* ---------- Photo frames (real imagery) ---------- */
.photo { position: relative; overflow: hidden; background: var(--black-2); }
.photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.photo-credit {
  position: absolute; z-index: 1; left: 0.9rem; bottom: 0.9rem;
  font-size: 0.62rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: rgba(255,255,255,0.75); background: rgba(16,18,17,0.45);
  padding: 0.3rem 0.6rem; border-radius: 2px;
}

.hero { position: relative; height: min(88vh, 780px); min-height: 500px; color: var(--white); }
.hero .photo { position: absolute; inset: 0; }
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, rgba(9,12,10,0.15) 0%, rgba(9,12,10,0.35) 55%, rgba(9,12,10,0.82) 100%);
}
.hero-inner { position: relative; z-index: 2; width: 100%; padding: 0 clamp(1.25rem, 4vw, 2.5rem) clamp(2.5rem, 6vw, 4.5rem); }
.hero .eyebrow { color: var(--green-light); }
.hero h1 { color: var(--white); font-size: clamp(2.3rem, 5.4vw, 4rem); max-width: 17ch; margin-bottom: 1.1rem; }
.hero .lede { color: rgba(255,255,255,0.9); font-size: 1.12rem; max-width: 42ch; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 1.8rem; }

.page-hero { position: relative; height: 42vh; min-height: 300px; color: var(--white); }
.page-hero .photo { position: absolute; inset: 0; }
.page-hero::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, rgba(9,12,10,0.25) 0%, rgba(9,12,10,0.78) 100%);
}
.page-hero .hero-inner { padding-bottom: clamp(2rem, 5vw, 3rem); }
.page-hero h1 { color: var(--white); font-size: clamp(2rem, 4.2vw, 3rem); max-width: 22ch; }

/* ---------- Stat strip ---------- */
.stat-strip { background: var(--black); color: var(--white); }
.stat-strip .wrap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; padding: clamp(1.6rem, 3vw, 2.4rem); }
.stat { text-align: center; border-left: 1px solid rgba(255,255,255,0.14); padding: 0.4rem 1rem; }
.stat:first-child { border-left: none; }
.stat b { display: block; font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; color: var(--green-light); margin-bottom: 0.25rem; }
.stat span { font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: rgba(255,255,255,0.65); }

/* ---------- Sections ---------- */
section { padding: clamp(4rem, 8vw, 6.5rem) 0; }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 2rem; margin-bottom: clamp(2.5rem, 5vw, 3.5rem); flex-wrap: wrap; }
.section-head .lede { margin-bottom: 0; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap); align-items: center; }
.split .photo { aspect-ratio: 4/5; border-radius: var(--radius); }

/* Services */
.card-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.service-card { padding: 2.3rem 2rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background 0.2s ease; }
.service-card:hover { background: var(--offwhite); }
.service-num { font-size: 0.78rem; font-weight: 800; color: var(--green); letter-spacing: 0.05em; margin-bottom: 1.1rem; display: block; }
.service-card h3 { margin-bottom: 0.6rem; }
.service-card p { margin-bottom: 0; font-size: 0.95rem; }

/* Why us */
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.why-item { padding-top: 1.3rem; border-top: 3px solid var(--green); }
.why-item h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.why-item p { font-size: 0.92rem; margin: 0; }

/* Projects grid */
.card-grid-3-proj { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; }
.project-card { display: block; }
.project-card .photo { aspect-ratio: 4/3; margin-bottom: 1rem; border-radius: var(--radius); }
.project-card h3 { font-size: 1.02rem; margin-bottom: 0.2rem; }
.project-card .cat { font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--green); font-weight: 700; }
.project-card .view-link { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.78rem; font-weight: 700; margin-top: 0.5rem; color: var(--black); }
.project-card .view-link svg { width: 13px; height: 13px; transition: transform 0.2s ease; }
.project-card:hover .view-link svg { transform: translateX(3px); }

.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.gallery-grid .project-card.hide { display: none; }
.gallery-grid .photo { aspect-ratio: 1/1; }

.filter-row { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.filter-btn {
  border: 1.5px solid var(--line); background: var(--white); padding: 0.55rem 1.15rem;
  font-size: 0.76rem; letter-spacing: 0.05em; text-transform: uppercase; font-weight: 700;
  cursor: pointer; border-radius: var(--radius); transition: all 0.2s ease;
}
.filter-btn:hover { border-color: var(--green); }
.filter-btn.active { background: var(--black); border-color: var(--black); color: var(--white); }

/* Process */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; counter-reset: step; }
.process-item::before {
  counter-increment: step; content: "0" counter(step);
  font-size: 2.2rem; font-weight: 800; color: var(--line); display: block; margin-bottom: 0.6rem;
}
.process-item h3 { font-size: 1rem; margin-bottom: 0.4rem; }
.process-item p { font-size: 0.88rem; margin: 0; }

/* FAQ accordion */
.faq-list { border-top: 1px solid var(--line); max-width: 780px; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: 1.3rem 0; background: none; border: none; cursor: pointer; text-align: left;
  font-family: var(--font); font-size: 1rem; font-weight: 700; color: var(--black);
}
.faq-q .plus { flex-shrink: 0; width: 22px; height: 22px; position: relative; }
.faq-q .plus::before, .faq-q .plus::after { content: ""; position: absolute; background: var(--green); transition: transform 0.25s ease; }
.faq-q .plus::before { top: 50%; left: 0; right: 0; height: 2px; transform: translateY(-50%); }
.faq-q .plus::after { left: 50%; top: 0; bottom: 0; width: 2px; transform: translateX(-50%); }
.faq-item.open .faq-q .plus::after { transform: translateX(-50%) rotate(90deg); opacity: 0; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-item.open .faq-a { max-height: 240px; }
.faq-a p { padding-bottom: 1.3rem; margin: 0; font-size: 0.95rem; max-width: 65ch; }

/* Social strip */
.social-strip { background: var(--offwhite); }
.social-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.8rem; flex-wrap: wrap; gap: 1rem; }
.social-head a { font-size: 0.85rem; font-weight: 700; color: var(--green-dark); display: inline-flex; align-items: center; gap: 0.4rem; }
.social-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0.9rem; }
.social-grid .photo { aspect-ratio: 1/1; }
.social-grid .photo::after {
  content: ""; position: absolute; inset: 0; background: rgba(16,18,17,0); transition: background 0.2s ease;
}
.social-grid a:hover .photo::after { background: rgba(16,18,17,0.25); }

/* Testimonials */
.testimonial-strip { background: var(--black); color: var(--white); }
.testimonial-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.75rem; }
.testimonial-card { background: var(--black-2); padding: 2.2rem; border-radius: var(--radius); border: 1px solid rgba(255,255,255,0.08); }
.stars { color: var(--green-light); letter-spacing: 0.15em; margin-bottom: 1rem; font-size: 0.9rem; }
.testimonial-card p { font-size: 1.05rem; color: var(--white); margin-bottom: 1.2rem; }
.testimonial-card cite { font-style: normal; font-size: 0.78rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--gray-light); }
.placeholder-note { font-size: 0.7rem; color: var(--gray-light); margin-top: 0.6rem; }
.testimonial-strip .placeholder-note { color: rgba(255,255,255,0.5); }

/* CTA banner */
.cta-banner { position: relative; overflow: hidden; background: var(--green); color: var(--white); text-align: center; }
.cta-banner .photo { background: var(--green); }
.cta-banner .photo img { mix-blend-mode: luminosity; }
.cta-banner h2 { color: var(--white); max-width: 24ch; margin: 0 auto 1rem; }
.cta-banner .lede { color: rgba(255,255,255,0.85); max-width: 40ch; margin: 0 auto 2rem; }
.cta-banner .hero-actions { justify-content: center; }
.cta-banner .btn-primary { background: var(--black); }
.cta-banner .btn-primary:hover { background: var(--black-2); }

/* Service area band */
.area-band { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.area-band .wrap { display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; padding: 1.6rem clamp(1.25rem,4vw,2.5rem); }
.area-band .eyebrow { margin: 0; }
.area-list { display: flex; flex-wrap: wrap; gap: 0.5rem 1.6rem; list-style: none; margin: 0; padding: 0; }
.area-list li { font-size: 0.85rem; color: var(--gray); }
.area-list li::before { content: "— "; color: var(--gray-light); }

/* Contact page */
.contact-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--gap); align-items: flex-start; }
.contact-form { display: grid; gap: 1.1rem; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.field label { display: block; font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 0.5rem; color: var(--gray); font-weight: 700; }
.field input, .field select, .field textarea {
  width: 100%; border: 1.5px solid var(--line); background: var(--white); padding: 0.85rem 1rem;
  font-family: var(--font); font-size: 0.95rem; color: var(--black); border-radius: var(--radius);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--green); }
.field textarea { resize: vertical; min-height: 130px; }
.form-note { font-size: 0.78rem; color: var(--gray-light); }
.form-success { display: none; background: var(--offwhite); border: 1.5px solid var(--green); padding: 1.2rem 1.4rem; font-size: 0.92rem; border-radius: var(--radius); }
.form-success.show { display: block; }

.contact-card { background: var(--black); color: var(--white); padding: 2.4rem; border-radius: var(--radius); }
.contact-card h3 { color: var(--white); margin-bottom: 1.3rem; }
.contact-row { display: flex; gap: 0.9rem; align-items: flex-start; margin-bottom: 1.4rem; }
.contact-row svg { flex-shrink: 0; margin-top: 0.15rem; color: var(--green-light); }
.contact-row a, .contact-row span { font-size: 0.95rem; color: var(--white); }
.contact-row .label { display: block; font-size: 0.66rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--gray-light); margin-bottom: 0.25rem; }
.social-row { display: flex; gap: 0.8rem; margin-top: 1.6rem; }
.social-row a { width: 38px; height: 38px; border: 1px solid rgba(255,255,255,0.3); display: flex; align-items: center; justify-content: center; border-radius: 50%; transition: all 0.2s ease; }
.social-row a:hover { background: var(--green); border-color: var(--green); }

/* Footer */
.site-footer { background: var(--black-2); color: var(--white); padding-top: clamp(3rem, 6vw, 4.5rem); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr; gap: 2.5rem; padding-bottom: 3rem; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-grid h4 { color: var(--white); font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 1.2rem; font-weight: 700; }
.site-footer .logo-text strong { color: var(--white); }
.site-footer .logo-text span { color: var(--gray-light); }
.footer-about p { color: var(--gray-light); font-size: 0.9rem; max-width: 32ch; }
.footer-links { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.7rem; }
.footer-links a { font-size: 0.88rem; color: var(--gray-light); transition: color 0.2s ease; }
.footer-links a:hover { color: var(--green-light); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding: 1.6rem 0; font-size: 0.76rem; color: var(--gray-light); flex-wrap: wrap; gap: 0.8rem; }

.icon { width: 26px; height: 26px; color: var(--green); margin-bottom: 1rem; }

.reveal { transition: opacity 0.6s ease, transform 0.6s ease; }
body.reveal-armed .reveal { opacity: 0; transform: translateY(16px); }
body.reveal-armed .reveal.in { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .main-nav ul, .nav-cta { display: none; }
  .nav-toggle { display: block; }
  .why-grid, .card-grid-3, .card-grid-3-proj, .gallery-grid, .process-grid { grid-template-columns: repeat(2, 1fr); }
  .social-grid { grid-template-columns: repeat(3, 1fr); }
  .split { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stat-strip .wrap { grid-template-columns: 1fr; gap: 0.8rem; }
  .stat { border-left: none; border-top: 1px solid rgba(255,255,255,0.14); padding-top: 1rem; }
  .stat:first-child { border-top: none; }
}
@media (max-width: 640px) {
  .why-grid, .card-grid-3, .card-grid-3-proj, .gallery-grid, .process-grid { grid-template-columns: 1fr; }
  .social-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .form-row-2 { grid-template-columns: 1fr; }
  .section-head { flex-direction: column; align-items: flex-start; }
}

/* Mobile nav drawer */
.mobile-nav {
  position: fixed; inset: 0; z-index: 100; background: var(--black); color: var(--white);
  display: flex; flex-direction: column; padding: 1.5rem clamp(1.25rem, 4vw, 2.5rem);
  transform: translateX(100%); transition: transform 0.35s ease;
}
.mobile-nav.open { transform: translateX(0); }
.mobile-nav .close-row { display: flex; justify-content: flex-end; }
.mobile-nav .close-btn { background: none; border: none; color: var(--white); font-size: 1.6rem; cursor: pointer; }
.mobile-nav ul { list-style: none; padding: 0; margin: 2.5rem 0; display: grid; gap: 1.6rem; }
.mobile-nav a { font-size: 1.8rem; font-weight: 800; }
.mobile-nav .nav-phone { color: var(--green-light); }