:root {
  --abyss: #07110f;
  --deep: #0d2b2c;
  --current: #17413f;
  --kelp: #2f6b60;
  --mist: #eef3ef;
  --pearl: #fafbf8;
  --line: #d8e1db;
  --muted: #66736d;
  --ink: #111714;
  --image-url: url("../img/ocean-surface.jpg");
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--pearl);
  color: var(--ink);
  font-family: "Avenir Next", Optima, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  letter-spacing: 0;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(216, 225, 219, 0.72);
  background: rgba(250, 251, 248, 0.86);
  backdrop-filter: blur(18px);
}

.nav-shell,
.section,
.footer-inner {
  width: min(1160px, calc(100% - 44px));
  margin: 0 auto;
}

.nav-shell {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
}

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

.brand-mark {
  display: inline-flex;
  width: 30px;
  height: 30px;
}

.brand-word {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.nav-cluster {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-toggle {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.74);
  color: var(--ink);
  font: inherit;
  font-size: 13px;
  padding: 8px 11px;
}

.nav-toggle {
  display: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
}

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

.hero {
  min-height: 86vh;
  display: grid;
  align-items: end;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(7, 17, 15, 0.92) 0%, rgba(7, 17, 15, 0.72) 40%, rgba(7, 17, 15, 0.12) 100%),
    var(--image-url) center / cover;
  color: var(--pearl);
}

.hero-inner {
  width: min(1160px, calc(100% - 44px));
  margin: 0 auto;
  padding: 130px 0 86px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--kelp);
  font-size: 13px;
  font-weight: 700;
}

.hero .eyebrow {
  color: #a6c8bc;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Iowan Old Style", Georgia, serif;
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.06;
}

h1 {
  max-width: 760px;
  font-size: 74px;
}

h2 {
  font-size: 44px;
}

h3 {
  font-size: 24px;
}

.hero-copy {
  max-width: 620px;
  margin: 28px 0 0;
  color: rgba(250, 251, 248, 0.78);
  font-size: 20px;
  line-height: 1.62;
}

.hero-line {
  width: min(520px, 100%);
  height: 1px;
  margin-top: 54px;
  background: rgba(238, 243, 239, 0.34);
}

.section {
  padding: 96px 0;
}

.section + .section {
  border-top: 1px solid var(--line);
}

.section-dark {
  background: var(--abyss);
  color: var(--pearl);
}

.grid-two {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 84px;
  align-items: start;
}

.text-stack > * + * {
  margin-top: 22px;
}

.text-stack p,
.content-block p,
.contact-item p {
  margin: 0;
  color: var(--muted);
}

.section-dark .text-stack p,
.section-dark .content-block p {
  color: rgba(250, 251, 248, 0.72);
}

.brand-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.brand-point {
  min-height: 220px;
  background: var(--pearl);
  padding: 28px;
}

.section-dark .brand-points {
  border-color: rgba(238, 243, 239, 0.22);
  background: rgba(238, 243, 239, 0.18);
}

.section-dark .brand-point {
  background: var(--abyss);
}

.brand-point p {
  margin: 18px 0 0;
  color: var(--muted);
}

.page-hero {
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(250, 251, 248, 0.98), rgba(250, 251, 248, 0.74)),
    var(--image-url) center / cover;
}

.page-hero .section {
  padding-top: 104px;
  padding-bottom: 82px;
}

.page-title {
  max-width: 780px;
}

.page-copy {
  max-width: 700px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 19px;
}

.content-block {
  max-width: 820px;
}

.content-block + .content-block {
  margin-top: 58px;
}

.content-block ul {
  margin: 18px 0 0;
  padding-left: 20px;
}

.content-block li {
  color: var(--muted);
}

.contact-panel {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--line);
}

.contact-item {
  background: var(--pearl);
  padding: 34px;
}

.contact-item h2 {
  font-size: 32px;
}

.contact-item p {
  margin-top: 16px;
}

.contact-item a {
  color: var(--kelp);
}

.legal-note {
  margin-top: 34px;
  border-left: 2px solid var(--kelp);
  padding-left: 22px;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid rgba(238, 243, 239, 0.18);
  background: var(--abyss);
  color: var(--pearl);
}

.footer-inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 54px;
  padding: 52px 0;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.footer-brand .brand-mark {
  color: var(--pearl);
}

.footer-details {
  display: grid;
  gap: 14px;
  color: rgba(250, 251, 248, 0.72);
  font-size: 14px;
}

.footer-details a {
  color: var(--pearl);
  text-decoration: none;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 26px;
}

.footer-links a {
  color: rgba(250, 251, 248, 0.82);
  font-size: 14px;
  text-decoration: none;
}

.copyright {
  color: rgba(250, 251, 248, 0.52);
}

@media (max-width: 820px) {
  .nav-shell,
  .section,
  .footer-inner,
  .hero-inner {
    width: min(100% - 30px, 1160px);
  }

  .nav-shell {
    min-height: 68px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-cluster {
    gap: 10px;
  }

  .nav-links {
    position: absolute;
    inset: 68px 15px auto;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: var(--pearl);
    padding: 8px;
  }

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

  .nav-links a {
    width: 100%;
    padding: 10px 8px;
  }

  .hero {
    min-height: 78vh;
    background:
      linear-gradient(180deg, rgba(7, 17, 15, 0.9) 0%, rgba(7, 17, 15, 0.76) 56%, rgba(7, 17, 15, 0.36) 100%),
      var(--image-url) center / cover;
  }

  .hero-inner {
    padding: 112px 0 66px;
  }

  h1 {
    font-size: 46px;
  }

  h2 {
    font-size: 34px;
  }

  .hero-copy,
  .page-copy {
    font-size: 18px;
  }

  .section {
    padding: 70px 0;
  }

  .grid-two,
  .brand-points,
  .contact-panel,
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .grid-two {
    gap: 36px;
  }

  .brand-point {
    min-height: auto;
  }
}

@media (max-width: 460px) {
  .brand-word {
    font-size: 14px;
  }

  .brand-mark {
    width: 28px;
    height: 28px;
  }

  h1 {
    font-size: 39px;
  }

  h2 {
    font-size: 30px;
  }
}