:root {
  --paper: #eeebe3;
  --paper-deep: #e3dfd3;
  --ink: #0f2a33;
  --ink-soft: #4b6168;
  --rule: rgba(15, 42, 51, 0.16);
  --go: #2f7a52;
  --caution: #c98a12;
  --nogo: #c2412a;
  --unknown: #8a9599;
  --signal: var(--ink);

  --serif: "Instrument Serif", Georgia, serif;
  --sans: "Instrument Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;

  --pad: clamp(1.1rem, 4vw, 2.5rem);
}

body[data-verdict="yes"] { --signal: var(--go); }
body[data-verdict="maybe"] { --signal: var(--caution); }
body[data-verdict="no"] { --signal: var(--nogo); }

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  color: var(--ink);
  font: 400 1rem/1.5 var(--sans);
  background:
    radial-gradient(120% 60% at 50% -10%, rgba(255, 255, 255, 0.7), transparent 60%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper-deep) 100%);
  background-attachment: fixed;
  min-height: 100vh;
}

/* Paper grain */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.06 0 0 0 0 0.16 0 0 0 0 0.2 0 0 0 .18 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 2px; }

main, .masthead, .footer {
  max-width: 68rem;
  margin: 0 auto;
  padding-inline: var(--pad);
}

/* Masthead */
.masthead {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding-block: 1.25rem 0;
  font: 500 0.72rem/1.2 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.masthead p { margin: 0; }
.updated { text-align: right; }

/* Hero */
.hero {
  position: relative;
  padding-block: clamp(2.5rem, 9vw, 6rem) clamp(2rem, 6vw, 4rem);
  border-bottom: 1px solid var(--rule);
}

.question {
  margin: 0;
  font: italic 400 clamp(1.6rem, 4.5vw, 2.6rem)/1 var(--serif);
  color: var(--ink-soft);
}

.verdict {
  margin: 0.05em 0 0;
  font: 400 clamp(6.5rem, 30vw, 17rem)/0.82 var(--serif);
  letter-spacing: -0.03em;
  color: var(--signal);
  transition: color 0.6s ease;
}
body[data-verdict="loading"] .verdict { color: var(--rule); animation: breathe 1.6s ease-in-out infinite; }
body[data-verdict="error"] .verdict { color: var(--unknown); }

.headline {
  margin: 1.1rem 0 0;
  max-width: 34ch;
  font: 500 clamp(1.15rem, 2.6vw, 1.45rem)/1.3 var(--sans);
}

.reasons {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.reasons li {
  font: 500 0.8rem/1 var(--mono);
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--signal);
  color: var(--signal);
  border-radius: 999px;
}

/* Signal flag in the hero corner */
.hero::after {
  content: "";
  position: absolute;
  top: clamp(2.5rem, 9vw, 6rem);
  right: 0;
  width: clamp(3rem, 9vw, 5.5rem);
  aspect-ratio: 3 / 2;
  background: var(--signal);
  clip-path: polygon(0 0, 100% 0, 78% 50%, 100% 100%, 0 100%);
  transform-origin: left center;
  animation: flutter 3.2s ease-in-out infinite;
  transition: background 0.6s ease;
}
body[data-verdict="loading"] .hero::after, body[data-verdict="error"] .hero::after { background: var(--rule); }

/* Factor cards */
.factors {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15.5rem, 1fr));
  gap: 1px;
  margin-block: clamp(2rem, 5vw, 3rem);
  background: var(--rule);
  border: 1px solid var(--rule);
}

.factor {
  position: relative;
  background: var(--paper);
  padding: 1.15rem 1.2rem 1.25rem 1.45rem;
  opacity: 0;
  animation: rise 0.55s cubic-bezier(0.2, 0.7, 0.2, 1) forwards;
}
.factor::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--status);
}
.factor[data-status="go"] { --status: var(--go); }
.factor[data-status="caution"] { --status: var(--caution); }
.factor[data-status="nogo"] { --status: var(--nogo); }
.factor[data-status="unknown"] { --status: var(--unknown); }

.factor-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
}
.factor h3 {
  margin: 0;
  font: 500 0.72rem/1.2 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.pill {
  font: 600 0.68rem/1 var(--sans);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--status);
}
.factor .value {
  margin: 0.55rem 0 0.4rem;
  font: 400 1.85rem/1.05 var(--serif);
}
.factor .detail {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ink-soft);
}
.factor .meta {
  margin: 0.75rem 0 0;
  font: 400 0.7rem/1.3 var(--mono);
  color: var(--ink-soft);
}
.factor .meta a { color: var(--ink-soft); }

/* Panels */
.panel {
  margin-block: clamp(2.25rem, 6vw, 3.5rem);
}
.panel-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.25rem 1rem;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
}
.panel h2 {
  margin: 0;
  font: 400 clamp(1.7rem, 4vw, 2.2rem)/1 var(--serif);
}
.panel-note {
  margin: 0;
  font: 400 0.75rem/1.3 var(--mono);
  color: var(--ink-soft);
}

/* Tide chart */
.tide-chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.tide-chart .water { fill: rgba(15, 42, 51, 0.08); }
.tide-chart .line { fill: none; stroke: var(--ink); stroke-width: 1.5; }
.tide-chart .now-line { stroke: var(--signal); stroke-width: 1.5; stroke-dasharray: 3 3; }
.tide-chart .now-dot { fill: var(--signal); }
.tide-chart .label { font: 400 11px var(--mono); fill: var(--ink-soft); }
.tide-chart .label-strong { font: 500 11px var(--mono); fill: var(--ink); }
.tide-chart .night { fill: rgba(15, 42, 51, 0.05); }
.tide-chart .current-bar.flood { fill: rgba(47, 122, 82, 0.55); }
.tide-chart .current-bar.ebb { fill: rgba(194, 65, 42, 0.5); }

.events {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(9.5rem, 1fr));
  gap: 0.75rem 1.25rem;
}
.events li { font: 400 0.82rem/1.35 var(--mono); }
.events .when { display: block; color: var(--ink-soft); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; }

/* Camera */
.cam-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--ink);
  border: 1px solid var(--ink);
}
.cam-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* Forecast */
.hours {
  list-style: none;
  margin: 0;
  padding: 0 0 0.5rem;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(6.5rem, 1fr);
  gap: 1px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.hours li {
  scroll-snap-align: start;
  background: var(--paper);
  padding: 0.8rem 0.75rem;
}
.hours .h { font: 500 0.72rem/1 var(--mono); letter-spacing: 0.06em; color: var(--ink-soft); }
.hours .t { font: 400 1.6rem/1.1 var(--serif); margin: 0.35rem 0 0.2rem; }
.hours .w, .hours .s { font-size: 0.78rem; color: var(--ink-soft); }

/* Footer */
.footer {
  padding-block: 2rem 3rem;
  border-top: 1px solid var(--rule);
  font-size: 0.85rem;
  color: var(--ink-soft);
}
.footer p { max-width: 60ch; }
.sources { font: 400 0.72rem/1.6 var(--mono); }

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}
@keyframes breathe {
  50% { opacity: 0.45; }
}
@keyframes flutter {
  0%, 100% { transform: skewY(0deg) scaleX(1); }
  50% { transform: skewY(-3deg) scaleX(0.96); }
}

@media (max-width: 560px) {
  .masthead { flex-direction: column; gap: 0.35rem; }
  .updated { text-align: left; }
  .hero::after { top: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .factor { opacity: 1; }
}