:root {
  color-scheme: light dark;
  --page: #eef4f5;
  --panel: #ffffff;
  --soft: #f2f7f7;
  --ink: #142e37;
  --muted: #4b6570;
  --accent: #006b65;
  --accent-soft: #dff2ef;
  --line: #d8e5e8;
  --grid: #e1ebed;
  --series-1: #087d75;
  --series-2: #3865b3;
  --series-3: #aa5b20;
  --radius: 20px;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-synthesis: none;
  background: var(--page);
  color: var(--ink);
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #10242c;
    --panel: #172f39;
    --soft: #1c3843;
    --ink: #edf7f7;
    --muted: #a6c1c8;
    --accent: #87ded2;
    --accent-soft: #22494d;
    --line: #30505b;
    --grid: #31505a;
    --series-1: #75d7c8;
    --series-2: #9ab9ff;
    --series-3: #ffba83;
  }
}

*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; line-height: 1.5; }
a { color: var(--accent); text-underline-offset: .2em; }
button, input { font: inherit; }
button { cursor: pointer; }
svg { display: block; width: 1.1em; height: 1.1em; flex: none; }
h1, h2, p, dl, dd { margin: 0; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

.shell { width: min(100% - 28px, 1120px); margin-inline: auto; }
.site-header { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; padding-block: 14px; }
.brand { display: inline-flex; gap: 10px; align-items: center; color: var(--ink); text-decoration: none; }
.brand-mark { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; background: #124c51; color: #a5eee3; font-size: 1.25rem; }
.brand strong, .brand small { display: block; }
.brand strong { font-size: 1.08rem; line-height: 1.18; letter-spacing: -.025em; }
.brand small { color: var(--muted); font-size: .74rem; }
.site-nav { display: flex; flex: 1 0 100%; gap: 4px; padding: 4px; border: 1px solid var(--line); border-radius: 15px; background: var(--panel); }
.site-nav a { display: flex; flex: 1; align-items: center; justify-content: center; gap: 6px; min-height: 44px; padding-inline: 6px; color: var(--muted); border-radius: 11px; text-decoration: none; font-size: .84rem; font-weight: 650; }
.site-nav a:hover, .site-nav a[aria-current="page"] { background: var(--accent-soft); color: var(--accent); }

.hero { display: grid; gap: 18px; position: relative; overflow: hidden; padding: clamp(18px, 4vw, 38px); border-radius: 24px; color: #f2fcfc; background: #123744 url("contours.svg") right center / auto 145% no-repeat; }
.hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, #123744 5%, transparent 84%); pointer-events: none; }
.hero > * { position: relative; min-width: 0; }
.eyebrow { color: var(--accent); font-size: .72rem; font-weight: 750; letter-spacing: .12em; text-transform: uppercase; }
.hero .eyebrow { color: #a2e9de; }
.hero h1 { margin-top: 3px; font-size: clamp(1.45rem, 3.5vw, 2.35rem); letter-spacing: -.04em; line-height: 1.16; }
.hero-reading { display: flex; align-items: baseline; gap: .14em; margin-top: 8px; font-size: clamp(3.8rem, 12vw, 6.6rem); font-weight: 730; line-height: .98; letter-spacing: -.075em; font-variant-numeric: tabular-nums; }
.hero-unit { color: #b8e9e5; font-size: .36em; font-weight: 550; letter-spacing: -.04em; }
.reading-time { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 8px; margin-top: 14px; color: #d2e6e8; font-size: .83rem; }
.reading-time time { color: #f2fcfc; font-weight: 650; }
.reading-status { display: inline-flex; align-items: center; gap: 6px; color: #b1f1d7; font-size: .77rem; font-weight: 650; }
.reading-status::before { content: ""; width: .5em; height: .5em; border-radius: 50%; background: currentColor; }
.reading-status.is-stale { color: #ffda9f; }
.hero-range { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 10px; align-self: end; padding: 12px 14px; border: 1px solid #b1e4e34f; border-radius: 16px; background: #163d49; }
.hero-range > p { grid-column: 1 / -1; color: #b6d9dc; font-size: .72rem; font-weight: 650; }
.hero-range dt { color: #d2e6e8; font-size: .74rem; }
.hero-range dd { color: #fff; font-size: 1.06rem; font-weight: 720; white-space: nowrap; }

.metrics { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 12px; }
.metric { min-width: 0; min-height: 126px; padding: 12px; border: 1px solid var(--line); border-radius: 17px; background: var(--panel); }
.metric h2 { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: .82rem; font-weight: 680; }
.metric h2 svg { color: var(--accent); }
.metric-value { display: flex; flex-wrap: wrap; align-items: baseline; column-gap: .28em; margin-top: 5px; font-size: clamp(1.28rem, 5vw, 2rem); line-height: 1.15; letter-spacing: -.045em; font-weight: 730; font-variant-numeric: tabular-nums; }
.metric-value small { font-size: .55em; color: var(--muted); letter-spacing: 0; font-weight: 650; }
.metric-note { margin-top: 5px; color: var(--muted); font-size: .75rem; }
.wind-direction { display: flex; align-items: center; gap: 4px; }
.wind-direction svg { color: var(--accent); }

.page-section { margin-top: clamp(24px, 5vw, 40px); }
.section-heading { margin-bottom: 12px; }
.section-heading h2, .page-intro h1 { font-size: clamp(1.4rem, 4vw, 2.1rem); line-height: 1.15; letter-spacing: -.045em; }
.section-heading p, .page-intro p, .chart-note { margin-top: 5px; color: var(--muted); font-size: .86rem; }
.page-intro { padding: 18px 0 14px; }
.page-intro .eyebrow { margin-bottom: 6px; }
.chart-panel, .details-panel, .table-wrap { min-width: 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.chart-panel { padding: clamp(10px, 2.8vw, 20px); }
.metric-tabs { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 12px; }
.metric-tabs button { flex: 1 0 auto; min-height: 44px; padding: 6px 9px; border: 1px solid var(--line); border-radius: 10px; color: var(--muted); background: var(--soft); font-size: .79rem; font-weight: 680; }
.metric-tabs button:hover, .metric-tabs button[aria-pressed="true"] { color: var(--accent); background: var(--accent-soft); border-color: var(--accent); }
.chart-frame { position: relative; height: clamp(236px, 52vw, 346px); min-width: 0; }
.chart-frame canvas { display: block; max-width: 100%; }
.chart-message, .chart-frame noscript { position: absolute; inset: 0; display: grid; place-items: center; padding: 12px; text-align: center; background: var(--panel); color: var(--muted); font-size: .86rem; }
.chart-message[hidden] { display: none; }
.chart-note { margin-inline: 2px; }
.details-panel { margin-top: 12px; }
.details-panel summary { min-height: 46px; padding: 11px 14px; cursor: pointer; font-size: .9rem; font-weight: 680; color: var(--ink); }
.details-panel summary::marker { color: var(--accent); }
.detail-values { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; padding: 0 14px 14px; }
.detail-values > div { padding: 9px 10px; border-radius: 10px; background: var(--soft); }
.detail-values dt { color: var(--muted); font-size: .75rem; }
.detail-values dd { color: var(--ink); font-size: .91rem; font-weight: 680; }

.column-toggle { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 12px 12px; }
.column-toggle label { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 6px 8px; border: 1px solid var(--line); border-radius: 9px; background: var(--soft); color: var(--ink); font-size: .81rem; cursor: pointer; }
.column-toggle input { accent-color: var(--accent); margin: 0; }
.table-wrap { overflow-x: auto; margin-top: 10px; }
.measurements { width: 100%; border-collapse: separate; border-spacing: 0; font-size: .85rem; font-variant-numeric: tabular-nums; }
.measurements th, .measurements td { text-align: right; padding: 9px 11px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.measurements th { color: var(--muted); background: var(--soft); font-weight: 700; }
.measurements tr:nth-child(even) td { background: var(--soft); }
.measurements tr:last-child td { border-bottom: 0; }
.measurements .col-ts { position: sticky; left: 0; text-align: left; background: var(--panel); border-right: 1px solid var(--line); }
.measurements th.col-ts { background: var(--soft); }
.measurements .col-ts small { display: block; color: var(--muted); }
.measurements .col-temp { color: var(--accent); font-weight: 700; }
.measurements .empty-table { text-align: center; padding: 24px 10px; }
.measurements [hidden] { display: none; }
.pagination { display: flex; flex-wrap: wrap; gap: 6px 9px; align-items: center; justify-content: flex-end; margin-block: 12px; font-size: .8rem; color: var(--muted); }
.pagination a { display: inline-flex; align-items: center; min-height: 44px; padding-inline: 9px; border: 1px solid var(--line); border-radius: 9px; background: var(--panel); text-decoration: none; font-weight: 650; }
.site-footer { padding-block: 22px 30px; color: var(--muted); font-size: .77rem; }

@media (min-width: 640px) {
  .shell { width: min(100% - 48px, 1120px); }
  .site-header { justify-content: space-between; padding-block: 18px; }
  .site-nav { flex: 0 1 auto; }
  .site-nav a { padding-inline: 15px; }
  .hero { grid-template-columns: minmax(0, 1fr) minmax(200px, 28%); min-height: 258px; }
  .hero-range { padding: 15px; }
  .metrics { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
  .metric { padding: 15px; }
  .metric-tabs button { flex: 0 1 auto; min-width: 92px; }
  .detail-values { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}