:root {
  color-scheme: light dark;
  --ground: #f6f7f7;
  --chrome: #eceeee;
  --card: #fff;
  --raised: #f1f3f3;
  --field: #f6f7f7;
  --hairline: #dbdfdf;
  --kelp: #1f7a57;
  --kelp-dim: #e8f2ed;
  --text-primary: #14181a;
  --text-body: #2e3638;
  --text-secondary: #525c5e;
  --text-tertiary: #5f6a6b;
  --depth: #1e7fc4;
  --ceiling: #c0392f;
  --radius-large: 28px;
  --radius-medium: 16px;
  --shadow: 0 24px 70px rgb(31 47 45 / 12%);
  --serif: "New York", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground: #131517;
    --chrome: #17191b;
    --card: #1a1d1f;
    --raised: #212528;
    --field: #121517;
    --hairline: #2a2e31;
    --kelp: #45b389;
    --kelp-dim: #1d3a31;
    --text-primary: #ecefef;
    --text-body: #c3c9ca;
    --text-secondary: #9ba3a5;
    --text-tertiary: #808a8c;
    --depth: #4fa8e8;
    --ceiling: #e4574c;
    --shadow: 0 24px 70px rgb(0 0 0 / 38%);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 76% 8%, color-mix(in srgb, var(--kelp) 12%, transparent), transparent 28rem),
    var(--ground);
  color: var(--text-body);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--kelp);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-thickness: 2px;
}

a:focus-visible {
  border-radius: 4px;
  outline: 3px solid color-mix(in srgb, var(--kelp) 42%, transparent);
  outline-offset: 4px;
}

.shell {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
}

.brand {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  color: var(--text-primary);
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  box-shadow: 0 5px 18px rgb(15 69 83 / 18%);
}

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

.site-nav a {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--text-primary);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(390px, 0.95fr);
  gap: clamp(44px, 7vw, 96px);
  align-items: center;
  min-height: 680px;
  padding: 64px 0 100px;
}

.hero-copy,
.instrument {
  min-width: 0;
}

.eyebrow,
.section-label,
.instrument-label {
  color: var(--text-tertiary);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  color: var(--text-primary);
  font-family: var(--serif);
  line-height: 1.08;
}

h1 {
  max-width: 760px;
  margin: 18px 0 24px;
  font-size: clamp(48px, 7vw, 82px);
  font-weight: 600;
  letter-spacing: -0.035em;
}

.hero-copy > p {
  max-width: 650px;
  margin: 0;
  color: var(--text-secondary);
  font-size: clamp(18px, 2vw, 21px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  padding: 0 20px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--kelp);
  border-radius: 12px;
  background: var(--kelp);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.button:hover {
  filter: brightness(1.06);
}

.platform-note {
  color: var(--text-tertiary);
  font-size: 13px;
}

.instrument {
  position: relative;
  overflow: hidden;
  min-height: 490px;
  padding: 28px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-large);
  background: var(--card);
  box-shadow: var(--shadow);
}

.instrument::after {
  position: absolute;
  right: -76px;
  bottom: -84px;
  width: 230px;
  height: 230px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--depth) 9%, transparent);
  content: "";
}

.instrument-topline {
  display: flex;
  justify-content: space-between;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--hairline);
}

.dive-number,
.metric strong,
.profile-scale {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

.dive-number {
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 600;
}

.site-name {
  margin: 28px 0 6px;
  font-family: var(--serif);
  font-size: 27px;
  font-weight: 600;
}

.place {
  color: var(--text-secondary);
  font-size: 13px;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 26px 0;
}

.metric {
  padding: 14px;
  border-radius: 12px;
  background: var(--field);
}

.metric span {
  display: block;
  margin-bottom: 7px;
  color: var(--text-tertiary);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.metric strong {
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 500;
}

.mode-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  margin: 8px 0 18px;
  padding: 4px;
  border-radius: 11px;
  background: var(--field);
  color: var(--text-tertiary);
  font-size: 11px;
  font-weight: 650;
  text-align: center;
}

.mode-selector span {
  padding: 7px 4px;
  border-radius: 8px;
}

.mode-selector .selected {
  background: var(--card);
  box-shadow: 0 2px 10px rgb(20 40 36 / 8%);
  color: var(--kelp);
}

.profile {
  position: relative;
  height: 150px;
  margin-top: 6px;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  background: repeating-linear-gradient(to bottom, transparent 0 36px, var(--hairline) 37px);
}

.profile svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.profile-scale {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  color: var(--text-tertiary);
  font-size: 9px;
}

.progression {
  padding: 110px 0;
  border-top: 1px solid var(--hairline);
  background: color-mix(in srgb, var(--chrome) 58%, transparent);
}

.progression-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(440px, 1.1fr);
  gap: clamp(52px, 8vw, 110px);
  align-items: start;
}

.progression-copy {
  position: sticky;
  top: 48px;
}

.progression h2 {
  margin: 14px 0 24px;
  font-size: clamp(36px, 5vw, 58px);
  letter-spacing: -0.025em;
}

.progression-copy p {
  max-width: 570px;
  margin: 0;
  color: var(--text-secondary);
  font-size: 17px;
}

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

.mode-path li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
  min-height: 150px;
  padding: 25px 0;
  border-top: 1px solid var(--hairline);
}

.mode-path li:last-child {
  border-bottom: 1px solid var(--hairline);
}

.mode-number {
  color: var(--kelp);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
}

.mode-path strong {
  color: var(--text-primary);
  font-family: var(--serif);
  font-size: 25px;
}

.mode-path p {
  margin: 8px 0 0;
  color: var(--text-secondary);
}

.features {
  padding: 100px 0;
  border-top: 1px solid var(--hairline);
}

.features h2,
.availability h2 {
  max-width: 800px;
  margin: 14px 0 52px;
  font-size: clamp(36px, 5vw, 58px);
  letter-spacing: -0.025em;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.feature-card {
  min-height: 275px;
  padding: 32px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-medium);
  background: var(--card);
}

.feature-card-wide {
  grid-column: 1 / -1;
  min-height: 235px;
}

.feature-card-wide p {
  max-width: 760px;
  font-size: 17px;
}

.import-card {
  background:
    linear-gradient(125deg, color-mix(in srgb, var(--kelp-dim) 78%, var(--card)), var(--card) 66%);
}

.feature-card h3 {
  margin: 26px 0 14px;
  font-size: 24px;
}

.feature-card p {
  margin: 0;
  color: var(--text-secondary);
}

.feature-index {
  color: var(--kelp);
  font-family: var(--mono);
  font-size: 12px;
}

.availability {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 64px;
  align-items: end;
  padding: 100px 0;
  border-top: 1px solid var(--hairline);
}

.availability h2 {
  margin-bottom: 0;
}

.availability-copy {
  padding-bottom: 8px;
  color: var(--text-secondary);
}

.availability-copy p {
  margin-top: 0;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 34px 0 48px;
  border-top: 1px solid var(--hairline);
  color: var(--text-tertiary);
  font-size: 13px;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: var(--text-secondary);
}

.policy {
  width: min(780px, calc(100% - 40px));
  margin: 0 auto;
  padding: 72px 0 110px;
}

.policy h1 {
  margin-bottom: 18px;
  font-size: clamp(42px, 7vw, 66px);
}

.policy .lede {
  margin-bottom: 56px;
  color: var(--text-secondary);
  font-size: 18px;
}

.policy h2 {
  margin: 54px 0 16px;
  padding-top: 8px;
  font-size: 27px;
  line-height: 1.2;
}

.policy p,
.policy li {
  color: var(--text-body);
}

.policy li + li {
  margin-top: 9px;
}

.policy-note {
  padding: 18px 20px;
  border: 1px solid var(--hairline);
  border-radius: 12px;
  background: var(--raised);
  color: var(--text-secondary);
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
    min-height: 0;
    padding-top: 72px;
  }

  .instrument {
    width: 100%;
    max-width: 560px;
  }

  .progression-layout,
  .feature-grid,
  .availability {
    grid-template-columns: 1fr;
  }

  .progression-copy {
    position: static;
  }

  .feature-card-wide {
    grid-column: auto;
  }

  .availability {
    gap: 30px;
  }
}

@media (max-width: 620px) {
  .shell {
    width: min(100% - 28px, 1180px);
  }

  .site-header {
    min-height: 74px;
  }

  .site-nav a:first-child {
    display: none;
  }

  .hero {
    gap: 48px;
    padding: 54px 0 74px;
  }

  h1 {
    font-size: 46px;
  }

  .instrument {
    min-height: 440px;
    padding: 20px;
    border-radius: 20px;
  }

  .metrics {
    grid-template-columns: 1fr 1fr;
  }

  .metric:last-child {
    display: none;
  }

  .features,
  .progression,
  .availability {
    padding: 74px 0;
  }

  .feature-grid {
    gap: 12px;
  }

  .feature-card {
    min-height: 0;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}