:root {
  color-scheme: light;
  --ink: #163044;
  --muted: #647887;
  --line: #dbe5e9;
  --paper: #f5f8f8;
  --white: #ffffff;
  --sky: #dff1f4;
  --blue: #176b87;
  --deep-blue: #0c445a;
  --sun: #f4b740;
  --green: #1c8a64;
  --shadow: 0 18px 45px rgba(19, 61, 78, .09);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

.site-header,
main,
footer {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  color: inherit;
  display: flex;
  gap: 12px;
  align-items: center;
  text-decoration: none;
}

.brand-mark {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--deep-blue);
  color: var(--white);
  font-weight: 800;
  letter-spacing: -.04em;
}

.brand strong,
.brand small { display: block; }
.brand strong { font-size: 1.1rem; }
.brand small { color: var(--muted); font-size: .77rem; }

nav { display: flex; gap: 28px; font-size: .9rem; }
nav a, nav span { color: var(--muted); text-decoration: none; }
nav .active { color: var(--deep-blue); font-weight: 700; }
nav .disabled { opacity: .55; }
.header-actions { display: flex; align-items: center; gap: 22px; }
.language-switcher select, .language-switcher button { min-height: 36px; border: 1px solid var(--line); border-radius: 10px; background: var(--white); color: var(--ink); font: inherit; font-size: .78rem; font-weight: 700; }
.language-switcher select { padding: 0 30px 0 10px; cursor: pointer; }
.language-switcher button { padding: 0 10px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

main { padding: 24px 0 64px; }

.hero {
  position: relative;
  overflow: hidden;
  min-height: 300px;
  padding: clamp(32px, 6vw, 70px);
  border-radius: 32px;
  background: linear-gradient(135deg, var(--deep-blue), var(--blue));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  box-shadow: var(--shadow);
}

.hero::after {
  content: "";
  position: absolute;
  width: 380px;
  height: 380px;
  right: -90px;
  top: -190px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .08);
  box-shadow: -100px 220px 0 rgba(255, 255, 255, .035);
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .72rem;
  font-weight: 800;
  color: var(--blue);
}

.hero .eyebrow { color: #a9deea; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 12px; font-size: clamp(2.1rem, 5vw, 4.1rem); line-height: 1; letter-spacing: -.045em; }
h2 { margin-bottom: 26px; font-size: clamp(1.7rem, 3vw, 2.4rem); letter-spacing: -.035em; }
.observed { margin-bottom: 0; color: #d9edf2; }

.status {
  display: inline-block;
  margin-left: 10px;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 800;
}
.status.online { color: #d5fff0; background: rgba(49, 216, 156, .18); }
.status.delayed { color: #fff0c8; background: rgba(244, 183, 64, .2); }

.temperature { position: relative; z-index: 1; display: flex; align-items: flex-start; }
.temperature strong { font-size: clamp(5rem, 13vw, 9.5rem); line-height: .8; letter-spacing: -.09em; }
.temperature span { margin: 4px 0 0 8px; font-size: 1.2rem; color: #b9e4ed; }

.metrics {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.metric,
.range-card,
.news article,
.empty-state {
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.metric { min-height: 180px; padding: 26px; border-radius: 22px; }
.metric.featured { background: var(--sky); border-color: transparent; }
.metric p { margin-bottom: 24px; color: var(--muted); font-size: .85rem; font-weight: 700; }
.metric strong { display: block; margin-bottom: 8px; font-size: 2.2rem; line-height: 1; letter-spacing: -.04em; }
.metric strong span { margin-left: 5px; font-size: .85rem; color: var(--muted); letter-spacing: 0; }
.metric small { color: var(--muted); }
.astronomy-now { margin-top: 16px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.astronomy-now .metric { min-height: 190px; }
.moon-card { background: linear-gradient(145deg, #102f40, #1b5369); color: var(--white); }
.moon-card p, .moon-card small { color: #c7dce4; }
.moon-card small { display: block; margin-top: 5px; }
.moon-heading { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; }
.moon-heading strong { margin: 0; font-size: 1.35rem; letter-spacing: -.02em; }
.moon-symbol { font-size: 3rem; line-height: 1; filter: drop-shadow(0 5px 8px rgba(0, 0, 0, .22)); }
.sun-card { background: linear-gradient(145deg, #fff8df, #ffe7a3); }
.sun-card p, .sun-card small { color: #745d24; }
.sun-card small { display: block; margin-top: 5px; }
.sun-heading { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; }
.sun-heading strong { margin: 0; font-size: 1.35rem; letter-spacing: -.02em; }
.sun-symbol { font-size: 3rem; line-height: 1; filter: drop-shadow(0 5px 8px rgba(122, 83, 0, .18)); }

.range-card {
  margin-top: 24px;
  padding: 32px;
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.range-card h2 { margin: 0; font-size: 1.5rem; }
.range-card dl { margin: 0; display: flex; gap: clamp(24px, 6vw, 72px); }
.range-card dl div { min-width: 86px; }
.range-card dt { color: var(--muted); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; }
.range-card dd { margin: 6px 0 0; font-size: 1.25rem; font-weight: 800; }

.news { margin-top: 64px; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.news article { padding: 26px; border-radius: 22px; }
.news time { color: var(--blue); font-size: .75rem; font-weight: 800; }
.news h3 { margin: 14px 0 10px; font-size: 1.15rem; }
.news p { margin: 0; color: var(--muted); }

.empty-state { padding: 80px 40px; border-radius: 28px; text-align: center; }
.empty-state h1 { font-size: 2.5rem; }

.history-page { padding-top: 36px; }
.history-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 32px;
}
.history-heading h1 { margin-bottom: 10px; color: var(--deep-blue); }
.history-heading > div > p:last-child { margin-bottom: 0; color: var(--muted); }
.period-navigation { display: inline-flex; gap: 4px; margin: 22px 0 0; padding: 4px; border: 1px solid var(--line); border-radius: 14px; background: var(--white); }
.period-navigation a { padding: 9px 16px; border-radius: 10px; color: var(--muted); font-size: .86rem; font-weight: 750; text-decoration: none; }
.period-navigation a.active { background: var(--deep-blue); color: var(--white); }
.date-form label { display: block; margin-bottom: 8px; color: var(--muted); font-size: .78rem; font-weight: 700; }
.date-form > div { display: flex; gap: 8px; }
.date-form input,
.date-form button {
  min-height: 44px;
  border-radius: 12px;
  font: inherit;
}
.date-form input { padding: 0 12px; border: 1px solid var(--line); background: var(--white); color: var(--ink); }
.date-form button { padding: 0 18px; border: 0; background: var(--deep-blue); color: var(--white); font-weight: 750; cursor: pointer; }

.day-navigation {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  margin-bottom: 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--white);
}
.day-navigation a { color: var(--blue); font-weight: 700; text-decoration: none; }
.day-navigation a:last-child { text-align: right; }
.day-navigation strong { text-align: center; }

.daily-summary {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  overflow: hidden;
  margin-bottom: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--line);
}
.daily-summary article { padding: 18px; background: var(--white); }
.daily-summary span { display: block; margin-bottom: 5px; color: var(--muted); font-size: .72rem; }
.daily-summary strong { font-size: 1.05rem; }
.history-health { display: flex; align-items: stretch; gap: 12px; margin-bottom: 18px; }
.history-health > div { display: grid; min-width: 180px; padding: 14px 16px; border: 1px solid var(--line); border-radius: 16px; background: var(--white); }
.history-health span { color: var(--muted); font-size: .72rem; font-weight: 700; }
.history-health strong { margin: 3px 0; }
.history-health small { color: var(--muted); }
.history-health .quality-warning { border-color: #e8c879; background: #fffaf0; }
.csv-download { align-self: center; margin-left: auto; padding: 11px 17px; border-radius: 12px; background: var(--blue); color: var(--white); font-weight: 750; text-decoration: none; }

.chart-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.chart-card {
  position: relative;
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--white);
  box-shadow: var(--shadow);
}
.chart-card.wide { grid-column: 1 / -1; }
.chart-card > div { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 18px; }
.chart-card p { margin: 0; font-weight: 800; }
.chart-card small { color: var(--muted); }
.chart-card canvas { display: block; width: 100%; height: 240px; }
.chart-card.wide canvas { height: 290px; }
.chart-legend { display: flex !important; justify-content: flex-start !important; gap: 18px; margin: -10px 0 8px !important; color: var(--muted); font-size: .74rem; font-weight: 700 !important; }
.chart-legend span::before { display: inline-block; width: 9px; height: 9px; margin-right: 6px; border-radius: 50%; content: ""; }
.chart-note { margin: 0 0 8px !important; color: var(--muted); font-size: .72rem; font-weight: 500 !important; }
.legend-max::before { background: #e06c3b; }
.legend-min::before { background: #368cc9; }
.legend-mean::before { background: #607987; }
.legend-wind::before { background: #176b87; }
.legend-gust::before { background: #f4b740; }
.chart-tooltip { position: absolute; z-index: 2; top: 52px; right: 20px; display: grid; gap: 3px; min-width: 145px; padding: 9px 11px; border: 1px solid var(--line); border-radius: 10px; background: rgba(255, 255, 255, .95); box-shadow: 0 8px 24px rgba(16, 47, 64, .12); color: var(--ink); font-size: .72rem; pointer-events: none; }
.chart-tooltip[hidden] { display: none; }
.chart-tooltip strong { margin-bottom: 2px; }
.chart-tooltip span { display: block; white-space: nowrap; }
.chart-tooltip i { display: inline-block; width: 7px; height: 7px; margin-right: 6px; border-radius: 50%; }
.lunar-panel, .lunar-calendar { margin-top: 18px; padding: 26px; border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(145deg, #102f40, #1b5369); color: var(--white); box-shadow: var(--shadow); }
.lunar-panel { display: flex; align-items: center; gap: 28px; }
.lunar-panel .eyebrow, .lunar-calendar .eyebrow { color: #a9deea; }
.lunar-panel h2, .lunar-calendar h2 { margin: 0; font-size: 1.45rem; }
.lunar-panel small, .lunar-calendar small { color: #c7dce4; }
.lunar-panel-symbol { margin-left: auto; font-size: 4rem; line-height: 1; }
.lunar-panel dl { display: flex; flex-wrap: wrap; gap: 16px 28px; margin: 0; }
.lunar-panel dt { color: #a9c4ce; font-size: .68rem; text-transform: uppercase; letter-spacing: .08em; }
.lunar-panel dd { margin: 3px 0 0; font-weight: 750; }
.lunar-calendar-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 20px; }
.moon-time-form { min-width: 225px; }
.moon-time-form.compact { margin-top: 14px; }
.moon-time-form label { display: block; margin-bottom: 5px; color: #a9c4ce; font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.moon-time-form > div { display: flex; gap: 6px; }
.moon-time-form input[type="time"], .moon-time-form button { min-height: 38px; border: 1px solid rgba(255, 255, 255, .18); border-radius: 10px; font: inherit; }
.moon-time-form input[type="time"] { min-width: 108px; padding: 0 9px; background: rgba(255, 255, 255, .1); color: var(--white); color-scheme: dark; }
.moon-time-form button { padding: 0 12px; background: #d9edf2; color: var(--deep-blue); font-weight: 750; cursor: pointer; }
.lunar-days { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(106px, 1fr); gap: 8px; overflow-x: auto; padding-bottom: 8px; scrollbar-color: #55798a transparent; }
.lunar-days article { display: grid; justify-items: center; padding: 12px 8px; border: 1px solid rgba(255, 255, 255, .12); border-radius: 14px; background: rgba(255, 255, 255, .06); text-align: center; }
.lunar-days time { color: #b9d1da; font-size: .7rem; }
.lunar-days span { margin: 6px 0; font-size: 2rem; line-height: 1; }
.lunar-days strong { min-height: 32px; font-size: .68rem; line-height: 1.2; }
.lunar-days small { font-size: .66rem; }
.solar-panel, .solar-calendar { margin-top: 18px; padding: 26px; border: 1px solid #f2d783; border-radius: 22px; background: linear-gradient(145deg, #fff9e8, #ffedb7); color: var(--ink); box-shadow: var(--shadow); }
.solar-panel { display: flex; align-items: center; gap: 28px; }
.solar-panel .eyebrow, .solar-calendar .eyebrow { color: #9b6d00; }
.solar-panel h2, .solar-calendar h2 { margin: 0; font-size: 1.45rem; }
.solar-panel small, .solar-calendar small { color: #765f28; }
.solar-panel-symbol { margin-left: auto; font-size: 4rem; line-height: 1; filter: drop-shadow(0 8px 12px rgba(141, 96, 0, .2)); }
.solar-panel dl { display: flex; flex-wrap: wrap; gap: 16px 28px; margin: 0; }
.solar-panel dt { color: #816b38; font-size: .68rem; text-transform: uppercase; letter-spacing: .08em; }
.solar-panel dd { margin: 3px 0 0; font-weight: 750; }
.astro-calendar-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 20px; }
.astro-time-form { min-width: 225px; }
.astro-time-form.compact { margin-top: 14px; }
.astro-time-form label { display: block; margin-bottom: 5px; color: #816b38; font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.astro-time-form > div { display: flex; gap: 6px; }
.astro-time-form input[type="time"], .astro-time-form button { min-height: 38px; border: 1px solid rgba(100, 72, 0, .2); border-radius: 10px; font: inherit; }
.astro-time-form input[type="time"] { min-width: 108px; padding: 0 9px; background: rgba(255, 255, 255, .55); color: var(--ink); }
.astro-time-form button { padding: 0 12px; background: var(--deep-blue); color: var(--white); font-weight: 750; cursor: pointer; }
.solar-days { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(116px, 1fr); gap: 8px; overflow-x: auto; padding-bottom: 8px; scrollbar-color: #c79c2a transparent; }
.solar-days article { display: grid; justify-items: center; padding: 12px 8px; border: 1px solid rgba(130, 91, 0, .14); border-radius: 14px; background: rgba(255, 255, 255, .42); text-align: center; }
.solar-days time { color: #765f28; font-size: .7rem; }
.solar-days span { margin: 6px 0; font-size: 2rem; line-height: 1; }
.solar-days strong { font-size: .72rem; }
.solar-days small { font-size: .66rem; }
.history-empty { margin-top: 24px; }

footer {
  padding: 30px 0 45px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
  font-size: .8rem;
}
footer p { margin: 0; }
.copyright { margin-top: 6px; color: var(--ink); font-weight: 700; }
footer a { color: var(--blue); }
.footer-links { display: flex; align-items: center; gap: 18px; }

@media (max-width: 780px) {
  .site-header { align-items: flex-start; padding: 18px 0; }
  .site-header > .header-actions > nav { display: none; }
  .hero { min-height: 420px; align-items: flex-start; flex-direction: column; }
  .temperature { align-self: flex-end; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .astronomy-now { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .range-card { align-items: flex-start; flex-direction: column; }
  .news-grid { grid-template-columns: 1fr; }
  .history-heading { align-items: flex-start; flex-direction: column; }
  .daily-summary { grid-template-columns: repeat(3, 1fr); }
  .chart-grid { grid-template-columns: 1fr; }
  .chart-card.wide { grid-column: auto; }
  .history-health { flex-wrap: wrap; }
  .csv-download { margin-left: 0; }
  .lunar-panel { align-items: flex-start; flex-direction: column; }
  .lunar-panel-symbol { margin-left: 0; }
  .lunar-calendar-heading { align-items: flex-start; flex-direction: column; }
  .solar-panel { align-items: flex-start; flex-direction: column; }
  .solar-panel-symbol { margin-left: 0; }
  .astro-calendar-heading { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 500px) {
  .site-header, main, footer { width: min(100% - 24px, 1180px); }
  main { padding-top: 8px; }
  .hero { padding: 30px 24px; border-radius: 24px; }
  .metrics { grid-template-columns: 1fr; }
  .astronomy-now { grid-template-columns: 1fr; }
  .metric { min-height: 155px; }
  .range-card dl { width: 100%; justify-content: space-between; gap: 8px; }
  .range-card dl div { min-width: auto; }
  .day-navigation { grid-template-columns: 1fr 1fr; }
  .day-navigation strong { grid-column: 1 / -1; grid-row: 1; }
  .daily-summary { grid-template-columns: repeat(2, 1fr); }
  .date-form, .date-form > div, .date-form input, .date-form button { width: 100%; }
  footer { flex-direction: column; }
}