:root {
  color-scheme: light;
  --ink: #12222b;
  --ink-soft: #334851;
  --paper: #f5f2ec;
  --paper-raised: #fffdf8;
  --teal: #0b6f72;
  --teal-deep: #075457;
  --ochre: #a85f12;
  --line: #b8c5c4;
  --night: #0b171d;
  --measure: 72rem;
  --serif: Georgia, 'Times New Roman', serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.55;
  margin: 0;
}

a { color: var(--teal-deep); text-underline-offset: 0.18em; }
a:hover { color: var(--ochre); }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--ochre); outline-offset: 4px; }

.skip-link {
  background: var(--night);
  color: white;
  left: 1rem;
  padding: 0.75rem 1rem;
  position: fixed;
  top: -5rem;
  z-index: 10;
}
.skip-link:focus { top: 1rem; }

.shell { margin-inline: auto; max-width: var(--measure); padding-inline: clamp(1.25rem, 4vw, 3rem); }

.site-header {
  align-items: center;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  min-height: 4.75rem;
}

.wordmark { color: var(--ink); font-family: var(--serif); font-size: 1.75rem; font-weight: 700; text-decoration: none; }
.site-nav { align-items: center; display: flex; flex-wrap: wrap; gap: 0.9rem 1.4rem; }
.site-nav a { font-size: 0.9rem; font-weight: 700; }

.hero {
  display: grid;
  gap: clamp(2rem, 6vw, 5rem);
  grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.8fr);
  padding-block: clamp(4rem, 9vw, 8rem);
}

.eyebrow { color: var(--teal-deep); font-family: var(--mono); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; }
h1, h2, h3 { font-family: var(--serif); line-height: 1.05; margin-block: 0; }
h1 { font-size: clamp(3.3rem, 8vw, 7rem); letter-spacing: -0.05em; max-width: 10ch; }
h2 { font-size: clamp(2.1rem, 5vw, 3.8rem); letter-spacing: -0.035em; }
h3 { font-size: 1.35rem; }
.lede { color: var(--ink-soft); font-size: clamp(1.1rem, 2vw, 1.35rem); max-width: 38rem; }

.safety {
  border-left: 5px solid var(--ochre);
  font-weight: 700;
  margin-block: 1.5rem;
  max-width: 42rem;
  padding: 0.35rem 0 0.35rem 1rem;
}

.tide-card {
  align-self: center;
  background: var(--night);
  border: 1px solid #52656e;
  border-radius: 1.4rem;
  color: #f8f5ee;
  min-height: 29rem;
  overflow: hidden;
  padding: 1.5rem;
  position: relative;
}
.tide-card::after {
  border: 3px solid #d98a2b;
  border-color: #d98a2b transparent transparent transparent;
  border-radius: 50%;
  bottom: -4.5rem;
  content: '';
  height: 13rem;
  left: -12%;
  position: absolute;
  transform: rotate(-7deg);
  width: 124%;
}
.card-station { color: #c9d6d7; font-family: var(--mono); font-size: 0.78rem; }
.card-next { color: #9fc4c2; font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.14em; margin-top: 4rem; }
.card-count { font-family: var(--serif); font-size: clamp(3.5rem, 8vw, 5.6rem); line-height: 1; margin: 0.35rem 0; }
.card-event { font-size: 1rem; font-weight: 700; }
.card-offline { bottom: 1.5rem; color: #e6c18f; font-family: var(--mono); font-size: 0.75rem; left: 1.5rem; position: absolute; }

.band { border-top: 1px solid var(--line); padding-block: clamp(3.5rem, 8vw, 7rem); }
.section-intro { color: var(--ink-soft); font-size: 1.1rem; max-width: 42rem; }
.feature-grid { display: grid; gap: 1px; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 2.5rem; background: var(--line); border: 1px solid var(--line); }
.feature { background: var(--paper-raised); min-height: 13rem; padding: clamp(1.5rem, 4vw, 2.5rem); }
.feature p { color: var(--ink-soft); }
.feature-index { color: var(--ochre); font-family: var(--mono); font-size: 0.75rem; }

.promise { background: var(--teal-deep); color: white; }
.promise .band { border: 0; }
.promise-grid { display: grid; gap: 2.5rem; grid-template-columns: 1fr 1fr; }
.promise p { color: #d6e7e5; }
.promise strong { color: white; }
.promise a { color: #f8dfb8; }
.promise a:hover { color: white; }

.legal-main { max-width: 52rem; padding-block: clamp(3rem, 7vw, 6rem); }
.legal-main h1 { font-size: clamp(2.7rem, 6vw, 4.7rem); max-width: none; }
.legal-main h2 { font-size: 1.7rem; margin-top: 2.8rem; }
.legal-main p, .legal-main li { color: var(--ink-soft); }
.legal-main .safety { color: var(--ink); }
.meta { color: var(--ink-soft); font-family: var(--mono); font-size: 0.8rem; }

.site-footer { border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between; padding-block: 2rem; }
.site-footer p { color: var(--ink-soft); font-size: 0.85rem; margin: 0; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem; }

@media (max-width: 760px) {
  .hero, .promise-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 3rem; }
  .tide-card { min-height: 24rem; }
  .feature-grid { grid-template-columns: 1fr; }
  .site-header { align-items: flex-start; flex-direction: column; justify-content: center; padding-block: 1rem; }
}

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

@media (prefers-color-scheme: dark) {
  :root { --paper: #0b171d; --paper-raised: #12242d; --ink: #f5f2ec; --ink-soft: #c8d3d1; --line: #4d6268; --teal-deep: #78cfca; --ochre: #edaa5b; }
  .promise { background: #102b31; }
  .legal-main .safety { color: var(--ink); }
}

.legal-main ul,
.legal-main ol.addendum {
  margin: 0 0 1.25rem;
  padding-left: 1.5rem;
}

.legal-main ul li,
.legal-main ol.addendum li {
  margin-bottom: 0.75rem;
}