:root {
  --color-background: #f4f7fa;
  --color-surface: #ffffff;
  --color-surface-alt: #e8eef4;
  --color-text: #203040;
  --color-text-soft: #536475;
  --color-primary: #2f6ea4;
  --color-primary-dark: #184a78;
  --color-border: #d2dbe4;
  --color-shadow: rgba(18, 39, 61, 0.08);
  --container-width: 1120px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-background);
}

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

a {
  color: inherit;
  text-decoration: none;
}

p,
h1,
h2,
h3,
ul,
figure {
  margin-top: 0;
}

.container {
  width: min(calc(100% - 2rem), var(--container-width));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 1rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--color-primary-dark);
  color: #fff;
  border-radius: var(--radius-sm);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(210, 219, 228, 0.8);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.brand-mark {
  width: 58px;
  height: 58px;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  background: #fff;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-text strong {
  font-size: 1rem;
}

.brand-text span:last-child {
  color: var(--color-text-soft);
  font-size: 0.92rem;
}

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

.site-nav a {
  color: var(--color-text-soft);
  font-weight: 700;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--color-primary-dark);
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(rgba(16, 36, 56, 0.72), rgba(16, 36, 56, 0.58)),
    url("../img/gallery/stairway_after.jpg") center/cover no-repeat;
  color: #fff;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(130deg, rgba(23, 65, 103, 0.5), rgba(32, 48, 64, 0.12));
}

.hero-content {
  position: relative;
  padding: 7rem 0 6rem;
}

.eyebrow,
.section-label {
  margin-bottom: 1rem;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow {
  color: #d4e6f7;
}

.hero h1 {
  max-width: 11ch;
  margin-bottom: 1rem;
  font-size: clamp(2.6rem, 6vw, 5rem);
  line-height: 0.98;
}

.hero-copy {
  max-width: 620px;
  margin-bottom: 2rem;
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.9);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.85rem 1.4rem;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  background: #fff;
  color: var(--color-primary-dark);
  box-shadow: 0 14px 28px rgba(9, 23, 37, 0.2);
}

.button-secondary {
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

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

.hero-highlights {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  max-width: 760px;
  padding: 0;
  list-style: none;
}

.hero-highlights li {
  padding: 0.9rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.08);
}

.section {
  padding: 5rem 0;
}

.intro-strip {
  padding: 3rem 0;
}

.intro-grid,
.about-grid,
.contact-grid,
.cta-band-inner {
  display: grid;
  gap: 2rem;
  align-items: center;
}

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

.section-alt {
  background: linear-gradient(180deg, #eef3f8 0%, #e4ebf2 100%);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 2rem;
}

.section-heading h2,
.intro-grid h2,
.about-grid h2,
.contact-grid h2,
.cta-band h2 {
  margin-bottom: 0.9rem;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.05;
}

.section-label {
  color: var(--color-primary);
}

.section-label-light {
  color: rgba(255, 255, 255, 0.75);
}

.services-grid,
.gallery-grid {
  display: grid;
  gap: 1.25rem;
}

.services-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 40px var(--color-shadow);
}

.service-card {
  padding: 1.6rem;
}

.service-card h3 {
  margin-bottom: 0.75rem;
  font-size: 1.2rem;
}

.service-note {
  margin-top: 1.25rem;
  padding: 1rem 1.25rem;
  color: var(--color-text-soft);
}

.checklist-card,
.contact-card {
  padding: 1.75rem;
}

.checklist {
  margin: 0;
  padding: 0;
  list-style: none;
}

.checklist li {
  position: relative;
  padding-left: 1.7rem;
}

.checklist li + li {
  margin-top: 1rem;
}

.checklist li::before {
  content: "";
  position: absolute;
  top: 0.55rem;
  left: 0;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background: var(--color-primary);
}

.gallery-item {
  overflow: hidden;
}

.gallery-item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.gallery-item figcaption {
  padding: 1rem 1.2rem 1.2rem;
  color: var(--color-text-soft);
  font-weight: 700;
}

.cta-band {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: #fff;
}

.cta-band-inner {
  grid-template-columns: 1.6fr auto;
}

.contact-item + .contact-item {
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border);
}

.contact-label {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--color-text-soft);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-card a {
  color: var(--color-primary-dark);
  font-size: 1.1rem;
  font-weight: 800;
}

.site-footer {
  padding: 2rem 0 3rem;
  background: #dfe7ef;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  color: var(--color-text-soft);
}

@media (max-width: 980px) {
  .services-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .intro-grid,
  .about-grid,
  .contact-grid,
  .cta-band-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-content {
    padding: 5.5rem 0 4.5rem;
  }

  .hero-highlights,
  .services-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 4rem 0;
  }
}

@media (max-width: 520px) {
  .site-nav {
    gap: 0.7rem 1rem;
  }

  .brand {
    align-items: flex-start;
  }

  .button {
    width: 100%;
  }
}