:root {
  --color-primary: #1b2430;
  --color-secondary: #e0a526;
  --color-accent: #f3c55a;
  --color-bg: #eef0ec;
  --color-text: #1b2430;
  --color-muted: #4a5663;
  --color-surface: #ffffff;
  --color-line: #cfd5d0;
  --color-on-dark: #f4f5f1;
  --color-on-dark-muted: #b9c1c9;
  --color-layer-1: #6b5a45;
  --color-layer-2: #39424d;
  --color-layer-3: #8a949e;
  --color-layer-4: #55606b;
  --color-layer-5: #2a333d;
  --color-layer-6: #e0a526;
  --color-shadow: rgba(27, 36, 48, 0.12);

  --font: "Avenir Next", "Segoe UI", "Helvetica Neue", system-ui, sans-serif;
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 26px;
  --wrap: 1160px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
.wrap { width: min(var(--wrap), 100% - 40px); margin-inline: auto; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-line);
}
.topbar .wrap {
  display: flex; align-items: center; gap: 24px;
  min-height: 68px; flex-wrap: wrap;
}
.top-phone {
  display: inline-flex; align-items: center; gap: 8px;
  min-height: 40px; padding: 0 16px;
  background: var(--color-primary); color: var(--color-on-dark);
  border-radius: 999px; text-decoration: none;
  font-weight: 700; font-variant-numeric: tabular-nums; letter-spacing: .01em;
}
.top-phone .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-secondary); }
.top-phone:hover { background: var(--color-layer-2); }
.wordmark {
  text-decoration: none; font-weight: 800; font-size: 1.05rem; line-height: 1.1;
  letter-spacing: -.01em;
}
.wordmark small { display: block; font-weight: 500; font-size: .78rem; color: var(--color-muted); letter-spacing: 0; }
.nav { margin-left: auto; display: flex; gap: 4px; }
.nav a {
  display: inline-flex; align-items: center; min-height: 40px; padding: 0 14px;
  text-decoration: none; font-weight: 600; font-size: .95rem; border-radius: var(--r-sm);
  color: var(--color-muted);
}
.nav a:hover { color: var(--color-text); background: var(--color-surface); }
.nav a[aria-current="page"] { color: var(--color-text); background: var(--color-surface); box-shadow: inset 0 -3px 0 var(--color-secondary); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 50px; padding: 0 24px; border-radius: var(--r-sm);
  font-weight: 700; text-decoration: none; font-size: 1rem;
  transition: transform .15s ease, background .15s ease;
}
.btn-amber { background: var(--color-secondary); color: var(--color-primary); }
.btn-amber:hover { background: var(--color-accent); transform: translateY(-1px); }
.btn-line { border: 2px solid var(--color-primary); color: var(--color-primary); }
.btn-line:hover { background: var(--color-surface); }

/* ---------- hero ---------- */
.hero { padding: 56px 0 72px; }
.hero .wrap {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center;
}
.hero h1 {
  font-size: clamp(2.4rem, 5.4vw, 4.3rem);
  line-height: .98; letter-spacing: -.035em; font-weight: 800;
}
.hero h1 em { font-style: normal; background: linear-gradient(transparent 62%, var(--color-accent) 62%); }
.hero .lede { margin-top: 18px; font-size: 1.15rem; color: var(--color-muted); max-width: 33em; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.rating {
  display: flex; align-items: center; gap: 14px; margin-top: 30px;
  padding-top: 22px; border-top: 1px solid var(--color-line);
}
.rating .stars { color: var(--color-secondary); font-size: 1.25rem; letter-spacing: 2px; text-shadow: 0 0 0 var(--color-primary); }
.rating .stars span { color: var(--color-primary); }
.rating p { font-size: .95rem; color: var(--color-muted); line-height: 1.35; }
.rating strong { color: var(--color-text); }

figure.photo img {
  border-radius: var(--r-lg); width: 100%; height: auto; aspect-ratio: 4 / 3.4; object-fit: cover;
  box-shadow: 0 20px 50px var(--color-shadow);
}
figure.photo figcaption { margin-top: 10px; font-size: .9rem; color: var(--color-muted); }
figure.photo .stock-label {
  display: block; margin-top: 2px; font-size: .78rem; color: var(--color-muted); opacity: .9;
}

/* ---------- sections ---------- */
section.block { padding: 60px 0; }
.block-head { max-width: 640px; margin-bottom: 40px; }
.block-head h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); line-height: 1.08; letter-spacing: -.025em; font-weight: 800; }
.block-head p { margin-top: 14px; color: var(--color-muted); font-size: 1.08rem; }

/* about */
.about { background: var(--color-surface); border-radius: var(--r-lg); padding: 56px; }
.about-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 56px; align-items: start; }
.about-grid p + p { margin-top: 14px; }
.about-grid .copy p { color: var(--color-muted); }
.about-grid .copy p strong { color: var(--color-text); }
.facts { list-style: none; border-radius: var(--r-md); background: var(--color-bg); padding: 8px 24px; }
.facts li { padding: 16px 0; border-bottom: 1px solid var(--color-line); }
.facts li:last-child { border-bottom: 0; }
.facts dt, .facts .k { font-size: .85rem; color: var(--color-muted); font-weight: 600; }
.facts .v { font-weight: 700; font-size: 1.05rem; }
.facts a { text-decoration-color: var(--color-secondary); text-underline-offset: 3px; text-decoration-thickness: 2px; }

/* ---------- signature: roof cross-section ---------- */
.section-stack { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: center; }
.stack { display: flex; flex-direction: column; gap: 6px; padding: 24px 0; }
.layer {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  min-height: 46px; padding: 0 18px; border-radius: var(--r-sm);
  color: var(--color-on-dark); font-weight: 700; font-size: .95rem;
}
.layer .n { font-variant-numeric: tabular-nums; opacity: .8; font-weight: 600; }
/* each layer steps right: shows that each course overlaps the one beneath it */
.layer[data-l="6"] { background: var(--color-layer-6); color: var(--color-primary); margin-left: 0; margin-right: 30%; }
.layer[data-l="5"] { background: var(--color-layer-5); margin-left: 4%; margin-right: 20%; }
.layer[data-l="4"] { background: var(--color-layer-4); margin-left: 8%; margin-right: 14%; }
.layer[data-l="3"] { background: var(--color-layer-3); color: var(--color-primary); margin-left: 12%; margin-right: 8%; }
.layer[data-l="2"] { background: var(--color-layer-2); margin-left: 16%; margin-right: 4%; }
.layer[data-l="1"] { background: var(--color-layer-1); margin-left: 20%; margin-right: 0; }
.stack-key { margin-top: 10px; font-size: .85rem; color: var(--color-muted); }

.layer-list { list-style: none; counter-reset: none; }
.layer-list li { display: grid; grid-template-columns: 40px 1fr; gap: 4px 14px; padding: 16px 0; border-bottom: 1px solid var(--color-line); }
.layer-list li:last-child { border-bottom: 0; }
.layer-list .n {
  grid-row: span 2; width: 34px; height: 34px; border-radius: 9px;
  display: grid; place-items: center; font-weight: 800; font-size: .9rem;
  background: var(--color-primary); color: var(--color-on-dark);
}
.layer-list h3 { font-size: 1.05rem; line-height: 1.25; }
.layer-list p { color: var(--color-muted); font-size: .97rem; }

/* ---------- signs list ---------- */
.signs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; list-style: none; }
.signs li {
  background: var(--color-surface); border-radius: var(--r-md); padding: 22px 24px;
  border-left: 5px solid var(--color-secondary);
}
.signs li:nth-child(even) { border-radius: var(--r-md) var(--r-lg) var(--r-lg) var(--r-md); }
.signs h3 { font-size: 1.08rem; line-height: 1.25; }
.signs p { margin-top: 6px; color: var(--color-muted); font-size: .97rem; }
.signs-foot { margin-top: 28px; }

/* ---------- close band ---------- */
.close {
  background: var(--color-primary); color: var(--color-on-dark);
  border-radius: var(--r-lg); padding: 56px; margin-bottom: 40px;
  display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: end;
}
.close h2 { font-size: clamp(1.8rem, 3.6vw, 2.8rem); line-height: 1.05; letter-spacing: -.025em; }
.close p { margin-top: 12px; color: var(--color-on-dark-muted); }
.close .big-phone {
  display: inline-flex; align-items: center; min-height: 60px; padding: 0 26px;
  background: var(--color-secondary); color: var(--color-primary);
  border-radius: var(--r-md); text-decoration: none;
  font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 800; font-variant-numeric: tabular-nums;
}
.close .big-phone:hover { background: var(--color-accent); }
.close address { font-style: normal; margin-top: 14px; color: var(--color-on-dark-muted); font-size: .95rem; }
.close address a { color: var(--color-on-dark); }

footer.foot { padding: 0 0 36px; font-size: .88rem; color: var(--color-muted); }
footer.foot .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; border-top: 1px solid var(--color-line); padding-top: 22px; }
footer.foot a { display: inline-flex; align-items: center; min-height: 34px; }

/* ---------- inner page header ---------- */
.page-head { padding: 64px 0 24px; }
.page-head h1 { font-size: clamp(2.2rem, 4.8vw, 3.6rem); line-height: 1; letter-spacing: -.035em; font-weight: 800; }
.page-head p { margin-top: 14px; color: var(--color-muted); font-size: 1.12rem; max-width: 38em; }

/* services page: one row per layer */
.svc { list-style: none; }
.svc > li {
  display: grid; grid-template-columns: 220px 1fr 1fr; gap: 32px;
  padding: 36px 0; border-top: 1px solid var(--color-line);
}
.svc .label { display: flex; gap: 14px; align-items: flex-start; }
.svc .swatch { flex: none; width: 14px; height: 52px; border-radius: 6px; }
.svc h2 { font-size: 1.35rem; line-height: 1.15; letter-spacing: -.015em; }
.svc .label p { margin-top: 6px; font-size: .9rem; color: var(--color-muted); }
.svc h3 { font-size: .95rem; margin-bottom: 6px; }
.svc .col p, .svc .col li { color: var(--color-muted); font-size: .97rem; }
.svc .col ul { list-style: none; }
.svc .col li { padding-left: 18px; position: relative; }
.svc .col li::before { content: "•"; position: absolute; left: 2px; color: var(--color-secondary); font-weight: 800; }

/* contact page */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; padding-bottom: 72px; }
.panel { background: var(--color-surface); border-radius: var(--r-lg); padding: 36px; }
.panel h2 { font-size: 1.5rem; line-height: 1.15; letter-spacing: -.02em; }
.panel h2 + p { margin-top: 10px; color: var(--color-muted); }
.panel .big-phone {
  display: inline-flex; align-items: center; margin-top: 22px; min-height: 60px; padding: 0 24px;
  background: var(--color-secondary); color: var(--color-primary); border-radius: var(--r-md);
  text-decoration: none; font-weight: 800; font-size: clamp(1.4rem, 3vw, 1.9rem); font-variant-numeric: tabular-nums;
}
.panel .big-phone:hover { background: var(--color-accent); }
.panel address { font-style: normal; margin-top: 22px; font-weight: 700; font-size: 1.1rem; line-height: 1.4; }
.panel .map-link { display: inline-flex; align-items: center; min-height: 40px; margin-top: 8px; font-weight: 600; text-decoration-color: var(--color-secondary); text-underline-offset: 3px; text-decoration-thickness: 2px; }
.checklist { list-style: none; margin-top: 18px; }
.checklist li { display: grid; grid-template-columns: 28px 1fr; padding: 12px 0; border-bottom: 1px solid var(--color-line); color: var(--color-muted); }
.checklist li:last-child { border-bottom: 0; }
.checklist li::before { content: "✓"; color: var(--color-primary); font-weight: 800; }
.checklist strong { color: var(--color-text); }

/* ---------- motion ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
.stack .layer { opacity: 0; transform: translateX(-14px); transition: opacity .45s ease, transform .45s ease; }
.stack.in .layer { opacity: 1; transform: none; }
/* bottom-up, in install order */
.stack.in .layer[data-l="1"] { transition-delay: 0s; }
.stack.in .layer[data-l="2"] { transition-delay: .09s; }
.stack.in .layer[data-l="3"] { transition-delay: .18s; }
.stack.in .layer[data-l="4"] { transition-delay: .27s; }
.stack.in .layer[data-l="5"] { transition-delay: .36s; }
.stack.in .layer[data-l="6"] { transition-delay: .45s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal, .stack .layer { opacity: 1 !important; transform: none !important; transition: none !important; }
  .btn { transition: none; }
}

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .hero .wrap, .about-grid, .section-stack, .close, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .svc > li { grid-template-columns: 1fr; gap: 16px; }
  .close { padding: 40px 28px; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .topbar .wrap { gap: 10px 14px; padding: 10px 0; }
  .wordmark { order: 2; }
  .top-phone { order: 1; }
  .nav { order: 3; margin-left: 0; width: 100%; justify-content: space-between; }
  .nav a { padding: 0 10px; }
  .hero { padding: 32px 0 48px; }
  section.block { padding: 44px 0; }
  .about { border-radius: var(--r-md); padding: 32px 22px; }
  .signs { grid-template-columns: 1fr; }
  .panel { padding: 26px 22px; }
  .layer { font-size: .85rem; padding: 0 12px; }
  .layer[data-l="6"] { margin-right: 20%; }
}

/* tap targets: keep every link at least 34px tall */
.wordmark { display: inline-flex; flex-direction: column; justify-content: center; min-height: 40px; }
.facts .v a, .close address a { display: inline-flex; align-items: center; min-height: 34px; }