:root {
  --ink: #18212f;
  --muted: #526070;
  --line: #d7dee8;
  --surface: #f6f8fb;
  --white: #ffffff;
  --accent: #1f7a8c;
  --accent-dark: #145667;
  --gold: #b7791f;
  --shadow: 0 18px 50px rgba(15, 23, 42, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 0 6vw;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  width: 38px;
  height: 38px;
  place-items: center;
  color: var(--white);
  background: var(--accent-dark);
  border-radius: 8px;
  font-weight: 800;
}

.nav-links {
  display: flex;
  gap: 22px;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 600;
}

.nav-links a {
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--accent-dark);
}

.hero {
  position: relative;
  display: grid;
  min-height: calc(100vh - 72px);
  overflow: hidden;
}

.hero-image,
.hero-overlay,
.hero-content {
  grid-area: 1 / 1;
}

.hero-image {
  width: 100%;
  height: 100%;
  min-height: calc(100vh - 72px);
  object-fit: cover;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(13, 20, 30, 0.86) 0%, rgba(13, 20, 30, 0.72) 38%, rgba(13, 20, 30, 0.18) 74%),
    linear-gradient(0deg, rgba(13, 20, 30, 0.28), rgba(13, 20, 30, 0.08));
}

.hero-content {
  align-self: center;
  width: min(720px, 88vw);
  margin-left: 6vw;
  color: var(--white);
  padding: 80px 0 112px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(4rem, 9vw, 8.5rem);
  line-height: 0.92;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2rem, 4vw, 3.7rem);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.1rem;
}

.hero-copy {
  width: min(620px, 100%);
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
}

.button.primary {
  color: var(--white);
  background: var(--accent);
  border-color: var(--accent);
}

.button.secondary {
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
}

.intro-band,
.standards-band {
  background: var(--surface);
}

.section,
.intro-band,
.standards-band {
  padding: 86px 6vw;
}

.section-inner {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.two-column,
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.85fr);
  gap: 58px;
  align-items: start;
}

.copy-stack p,
.contact-layout p {
  color: var(--muted);
  font-size: 1.05rem;
}

.section-heading {
  width: min(760px, 100%);
  margin-bottom: 34px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.info-card {
  min-height: 186px;
  padding: 26px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.06);
}

.info-card p {
  color: var(--muted);
}

.standards-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  color: var(--muted);
  list-style: none;
}

.standards-list li {
  padding: 16px 18px;
  background: var(--white);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  box-shadow: 0 8px 22px rgba(15, 23, 42, 0.05);
}

.contact-section {
  background: var(--white);
}

.contact-panel {
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

dl {
  display: grid;
  gap: 18px;
  margin: 0;
}

dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

dd {
  margin: 3px 0 0;
  font-size: 1.05rem;
  font-weight: 700;
}

dd a {
  color: var(--accent-dark);
}

.site-footer {
  padding: 28px 6vw;
  color: var(--muted);
  background: var(--surface);
  border-top: 1px solid var(--line);
}

.site-footer p {
  width: min(1180px, 100%);
  margin: 0 auto;
}

@media (max-width: 820px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding: 16px 5vw;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero,
  .hero-image {
    min-height: 680px;
  }

  .hero-overlay {
    background: linear-gradient(0deg, rgba(13, 20, 30, 0.84), rgba(13, 20, 30, 0.58));
  }

  .hero-content {
    align-self: end;
    margin: 0;
    width: 100%;
    padding: 80px 5vw 58px;
  }

  h1 {
    font-size: 4rem;
  }

  .section,
  .intro-band,
  .standards-band {
    padding: 64px 5vw;
  }

  .two-column,
  .contact-layout,
  .grid {
    grid-template-columns: 1fr;
  }
}