:root {
  --bg: #f3f1eb;
  --panel: #ffffff;
  --panel-alt: #e7e2d7;
  --ink: #161d22;
  --muted: #55616a;
  --line: #c6ccc7;
  --accent: #1f3e4a;
  --accent-soft: #7ca6a1;
  --focus: #bb6b2d;
  --shadow: 0 18px 48px rgba(22, 29, 34, 0.08);
  --radius: 20px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(124, 166, 161, 0.10), transparent 16rem),
    linear-gradient(90deg, rgba(31, 62, 74, 0.04) 1px, transparent 1px),
    var(--bg);
  background-size: auto, 32px 32px, auto;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}

a:focus-visible,
button:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

img {
  display: block;
  max-width: 100%;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: var(--ink);
  color: #fff;
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
}

.skip-link:focus {
  top: 1rem;
}

.shell {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(243, 241, 235, 0.88);
  border-bottom: 1px solid rgba(198, 204, 199, 0.7);
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 0.85rem;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.9rem;
  color: #fff;
  background: linear-gradient(135deg, var(--ink), var(--accent));
  font-weight: 700;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.35rem;
}

.site-nav a {
  text-decoration: none;
  color: var(--muted);
}

.site-nav a[aria-current="page"],
.site-nav a:hover {
  color: var(--ink);
}

.nav-toggle {
  display: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 2rem;
  padding: 5rem 0 3rem;
  align-items: center;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.8rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
}

h1 {
  font-size: clamp(2.7rem, 5vw, 5.3rem);
  max-width: 12ch;
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

h3 {
  font-size: 1.2rem;
}

.lead,
.section-head p,
.company-band p,
.prose p,
.detail-card p,
.contact-panel p {
  color: var(--muted);
  font-size: 1.05rem;
}

.cta-row,
.fact-strip,
.service-grid,
.project-grid,
.stats-grid,
.footer-grid,
.contact-grid {
  display: flex;
  gap: 1rem;
}

.cta-row {
  flex-wrap: wrap;
  margin: 2rem 0 1.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.85rem 1.25rem;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 600;
}

.button-primary {
  color: #fff;
  background: var(--accent);
}

.button-secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.66);
}

.fact-strip {
  flex-wrap: wrap;
  padding: 0;
  margin: 0;
  list-style: none;
}

.fact-strip li {
  padding: 0.5rem 0.85rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid var(--line);
  color: var(--muted);
}

.card-frame,
.info-card,
.project-card,
.detail-card,
.contact-panel,
.estimator-form,
.error-page {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(198, 204, 199, 0.85);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.card-frame {
  padding: 1.25rem;
}

.section,
.page-main {
  padding: 2rem 0 3rem;
}

.section-head {
  display: grid;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.service-grid,
.project-grid,
.stats-grid,
.long-grid {
  display: grid;
  gap: 1rem;
}

.service-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.project-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stats-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.long-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.info-card,
.project-card,
.detail-card,
.contact-panel {
  padding: 1.4rem;
}

.split-section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  align-items: center;
}

.process-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  display: grid;
  gap: 1rem;
}

.process-list li {
  display: grid;
  gap: 0.35rem;
  padding: 1rem 1.1rem;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid var(--line);
  border-radius: 1rem;
}

.process-list span {
  color: var(--muted);
}

.company-band {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

.estimator-form {
  padding: 1.5rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.estimator-form label {
  display: grid;
  gap: 0.5rem;
  font-weight: 600;
}

.estimator-form select {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 0.9rem;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font: inherit;
}

.estimator-result {
  grid-column: 1 / -1;
  padding: 1rem 1.15rem;
  border-radius: 1rem;
  background: linear-gradient(135deg, rgba(31, 62, 74, 0.09), rgba(124, 166, 161, 0.12));
  color: var(--ink);
}

.faq-list {
  display: grid;
  gap: 1rem;
}

.faq-list details {
  padding: 1rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.74);
}

.faq-list summary {
  cursor: pointer;
  font-weight: 600;
}

.faq-list p {
  color: var(--muted);
}

.contact-grid {
  align-items: start;
}

.contact-grid > * {
  flex: 1 1 0;
}

.contact-list,
.check-list {
  padding: 0;
  margin: 1.25rem 0 0;
}

.contact-list div {
  display: grid;
  gap: 0.2rem;
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
}

.contact-list dt {
  font-weight: 700;
}

.contact-list dd {
  margin: 0;
  color: var(--muted);
}

.check-list {
  list-style: none;
}

.check-list li {
  padding: 0.65rem 0 0.65rem 1.4rem;
  position: relative;
  color: var(--muted);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1rem;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--accent-soft);
}

.prose {
  max-width: 860px;
}

.error-page {
  width: min(720px, calc(100% - 2rem));
  margin: 8rem auto;
  padding: 2rem;
}

.site-footer {
  border-top: 1px solid rgba(198, 204, 199, 0.8);
  padding: 1.5rem 0 2rem;
}

.footer-grid {
  justify-content: space-between;
  align-items: start;
  flex-wrap: wrap;
}

.footer-grid nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

@media (max-width: 900px) {
  .hero,
  .split-section,
  .company-band,
  .contact-grid {
    grid-template-columns: 1fr;
    display: grid;
  }

  .service-grid,
  .project-grid,
  .stats-grid,
  .long-grid,
  .estimator-form {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  .nav-toggle {
    display: inline-flex;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.8);
    padding: 0.75rem 1rem;
    font: inherit;
  }

  .site-nav {
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: calc(100% + 0.5rem);
    display: none;
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid var(--line);
    border-radius: 1rem;
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .service-grid,
  .project-grid,
  .stats-grid,
  .long-grid,
  .estimator-form {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 3.5rem;
  }
}