:root {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #eaf7ff;
  background: #06121f;
  font-synthesis: none;
  --panel: rgba(9, 36, 55, 0.8);
  --panel-border: rgba(143, 211, 235, 0.15);
  --panel-strong: rgba(14, 48, 70, 0.9);
  --muted: #91b4c4;
  --cyan: #65ddf4;
  --blue: #3287f5;
  --purple: #9b9fff;
  --rain: #64bfff;
  --green: #6ee7b7;
  --warning: #ffca6a;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 74% -10%, rgba(42, 145, 190, 0.19), transparent 34rem),
    linear-gradient(160deg, #071725 0%, #06111e 58%, #071421 100%);
}

.sky-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  background-image: linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(to bottom, black, transparent 75%);
}

.page-shell {
  position: relative;
  width: min(1440px, calc(100% - 40px));
  margin: 0 auto;
  padding: 34px 0 30px;
}

.masthead, .section-heading, footer, .rain-details, .wind-reading,
.history-toolbar, .history-controls, .period-navigation, .chart-scale-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.masthead { align-items: flex-end; margin-bottom: 18px; }
.masthead-actions { display: flex; align-items: flex-end; gap: 12px; }
h1, h2, p { margin: 0; }
h1 { font-size: clamp(2.15rem, 4vw, 3.7rem); letter-spacing: -0.05em; font-weight: 740; }
h2 { font-size: 1.2rem; letter-spacing: -0.025em; }
.eyebrow { color: var(--cyan); font-weight: 750; font-size: 0.68rem; letter-spacing: 0.18em; margin-bottom: 7px; }
.subtitle, .history-note { color: var(--muted); margin-top: 8px; font-size: 0.9rem; }

.station-picker { display: grid; gap: 6px; color: var(--muted); font-size: 0.68rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
select {
  min-width: 190px;
  color: #e9f9ff;
  background: #0b2639;
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 10px 34px 10px 12px;
  font: 600 0.86rem/1.2 inherit;
  text-transform: none;
  letter-spacing: normal;
}
select:focus-visible, input:focus-visible, button:focus-visible, a:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 42px;
  padding: 10px 14px;
  border: 1px solid var(--panel-border);
  background: rgba(8, 27, 42, 0.8);
  border-radius: 12px;
  color: var(--muted);
  font-size: 0.83rem;
}

.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--warning); box-shadow: 0 0 0 4px rgba(255, 202, 106, 0.1); }
.status-pill[data-state="online"] .status-dot { background: var(--green); box-shadow: 0 0 0 4px rgba(110, 231, 183, 0.1); }
.status-pill[data-state="error"] .status-dot { background: #ff7d7d; box-shadow: 0 0 0 4px rgba(255, 125, 125, 0.1); }

.section-nav { display: flex; gap: 8px; margin-bottom: 18px; }
.section-nav a { color: var(--muted); text-decoration: none; font-size: 0.78rem; font-weight: 650; padding: 7px 11px; border-radius: 9px; }
.section-nav a:hover { color: #e9f9ff; background: rgba(101, 221, 244, 0.08); }

.hero-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; scroll-margin-top: 18px; }
.metric-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin: 12px 0 28px; }
.chart-grid { display: grid; grid-template-columns: 1.55fr 1fr; gap: 16px; }

.primary-card, .metric-card, .chart-card, .history-section, .export-section {
  border: 1px solid var(--panel-border);
  background: linear-gradient(145deg, rgba(14, 48, 70, 0.84), rgba(7, 27, 43, 0.86));
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.18), inset 0 1px rgba(255,255,255,0.035);
  backdrop-filter: blur(18px);
}

.primary-card { min-height: 230px; border-radius: 22px; padding: 25px; position: relative; overflow: hidden; }
.primary-card::after { content: ""; position: absolute; width: 210px; height: 210px; border-radius: 50%; right: -110px; top: -120px; background: rgba(85, 190, 235, 0.13); filter: blur(4px); }
.temperature-card::after { background: rgba(255, 169, 98, 0.12); }
.wind-card::after { background: rgba(121, 139, 255, 0.13); }
.card-label, .metric-card p { color: var(--muted); font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.1em; font-weight: 680; }
.primary-value { display: flex; align-items: baseline; gap: 7px; margin: 22px 0 26px; }
.primary-value span { font-size: clamp(3rem, 6vw, 4.85rem); font-weight: 710; letter-spacing: -0.065em; line-height: 0.9; }
.primary-value small { color: var(--muted); font-size: 1rem; font-weight: 600; }
.rain-details { justify-content: flex-start; color: var(--muted); font-size: 0.8rem; }
.rain-details span + span { padding-left: 18px; border-left: 1px solid var(--panel-border); }
.rain-details strong { color: #dff7ff; }

.wind-reading { justify-content: flex-start; }
.wind-reading .primary-value { margin: 22px 0 26px; }
.compass { width: 70px; height: 70px; display: grid; place-items: center; border: 1px solid rgba(101, 221, 244, 0.25); border-radius: 50%; color: var(--cyan); background: rgba(3, 18, 30, 0.3); }
.compass-arrow { font-size: 2rem; transform-origin: center; transition: transform 400ms ease; }

.metric-card { min-height: 118px; border-radius: 16px; padding: 18px; }
.metric-card strong { display: block; margin-top: 14px; font-size: 1.35rem; letter-spacing: -0.025em; }
.metric-card small, .metric-secondary { color: var(--muted); font-size: 0.72rem; font-weight: 560; }
.metric-secondary { display: block; margin-top: 5px; }

.history-section { border-radius: 24px; padding: 24px; scroll-margin-top: 18px; }
.history-toolbar { align-items: flex-end; margin-bottom: 18px; }
.history-controls { align-items: flex-end; flex-direction: column; gap: 10px; }
.range-picker { display: inline-grid; grid-template-columns: repeat(3, 1fr); padding: 4px; border: 1px solid var(--panel-border); border-radius: 12px; background: rgba(3, 18, 30, 0.38); }
button { color: #dff8ff; background: rgba(19, 57, 78, 0.85); border: 1px solid var(--panel-border); border-radius: 10px; padding: 9px 14px; cursor: pointer; font: inherit; }
button:hover:not(:disabled) { border-color: rgba(101, 221, 244, 0.42); background: rgba(25, 72, 97, 0.9); }
button:disabled { opacity: 0.45; cursor: not-allowed; }
.range-picker button { min-width: 72px; border: 0; background: transparent; color: var(--muted); padding: 8px 14px; font-size: 0.78rem; font-weight: 700; }
.range-picker button[aria-pressed="true"] { color: #071b2a; background: var(--cyan); box-shadow: 0 5px 18px rgba(101, 221, 244, 0.18); }
.period-navigation { gap: 7px; }
.period-navigation > span { min-width: 190px; text-align: center; color: #dff7ff; font-size: 0.78rem; font-weight: 650; }
.icon-button { min-width: 36px; padding: 8px 10px; }
.today-button { padding: 8px 12px; font-size: 0.76rem; }

.history-summary { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 14px; }
.history-summary article { display: grid; grid-template-columns: 1fr auto auto; align-items: baseline; gap: 5px; padding: 13px 15px; border: 1px solid var(--panel-border); border-radius: 13px; background: rgba(3, 18, 30, 0.28); }
.history-summary span { color: var(--muted); font-size: 0.72rem; }
.history-summary strong { font-size: 1.15rem; }
.history-summary small { color: var(--muted); font-size: 0.68rem; }

.chart-card { border-radius: 18px; padding: 20px; min-width: 0; background: rgba(4, 24, 38, 0.54); box-shadow: none; }
.section-heading { align-items: flex-end; margin-bottom: 10px; }
.chart-legend { color: var(--muted); font-size: 0.69rem; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; justify-content: flex-end; }
.chart-legend span { display: inline-flex; align-items: center; gap: 6px; }
.chart-legend b { color: #dff7ff; font-size: 0.65rem; }
.legend-line { width: 18px; height: 3px; border-radius: 999px; display: inline-block; }
.legend-block { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
.legend-temp { background: var(--cyan); }
.legend-wind { background: var(--purple); }
.legend-rain { background: linear-gradient(#6ddcff, #287bea); }
.canvas-wrap { position: relative; height: 280px; }
canvas { width: 100%; height: 100%; display: block; }
.chart-scale-row { color: var(--muted); font-size: 0.66rem; margin-top: 5px; }
.chart-scale-row span:first-child { color: #9acbd9; }

footer { margin-top: 20px; color: var(--muted); font-size: 0.78rem; }

.export-section { border-radius: 24px; padding: 24px; margin-top: 18px; scroll-margin-top: 18px; }
.export-controls, .export-date-fields { display: flex; align-items: flex-end; flex-wrap: wrap; gap: 12px; }
.export-field { display: grid; gap: 7px; color: var(--muted); font-size: 0.78rem; }
.export-field input {
  color: #e9f9ff; background: #0b2639; border: 1px solid var(--panel-border);
  border-radius: 12px; padding: 10px 12px; font: inherit; min-height: 42px;
  color-scheme: dark;
}
.export-field select { min-height: 42px; }
.export-download { min-height: 42px; font-size: 0.86rem; font-weight: 650; }
.export-json-link { color: var(--cyan); padding: 12px 4px; font-size: 0.83rem; }
.export-json-link[aria-disabled="true"] { color: var(--muted); pointer-events: none; }
.export-help { color: var(--muted); font-size: 0.78rem; line-height: 1.6; margin-top: 14px; max-width: 85ch; }
.export-status { color: var(--green); font-size: 0.8rem; min-height: 1.3em; margin-top: 8px; }
.export-status[data-state="error"] { color: #ff9c9c; }
[hidden] { display: none !important; }

@media (max-width: 1100px) {
  .masthead { align-items: flex-start; }
  .masthead-actions { flex-direction: column; align-items: stretch; }
  .hero-grid { grid-template-columns: 1fr 1fr; }
  .wind-card { grid-column: span 2; }
  .metric-grid { grid-template-columns: repeat(3, 1fr); }
  .chart-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .page-shell { width: min(100% - 24px, 1440px); padding-top: 24px; }
  .masthead, .history-toolbar { align-items: stretch; flex-direction: column; }
  .masthead-actions { display: grid; grid-template-columns: 1fr auto; align-items: end; }
  select { min-width: 0; width: 100%; }
  .history-controls { align-items: stretch; }
  .range-picker { width: 100%; }
  .period-navigation { justify-content: center; flex-wrap: wrap; }
  .period-navigation > span { flex: 1; min-width: 145px; }
  .history-summary { grid-template-columns: 1fr 1fr; }
  .export-date-fields { flex: 1 1 auto; }
  .export-field { flex: 1 1 160px; min-width: 0; }
  .export-field input { width: 100%; min-width: 0; }
}

@media (max-width: 560px) {
  h1 { font-size: 2.3rem; }
  .masthead-actions { grid-template-columns: 1fr; }
  .hero-grid { grid-template-columns: 1fr; }
  .wind-card { grid-column: auto; }
  .metric-grid { grid-template-columns: 1fr 1fr; }
  .primary-card { min-height: 205px; }
  .primary-value span { font-size: 3.4rem; }
  .history-section { padding: 16px; }
  .export-section { padding: 16px; }
  .export-controls > .export-field, .export-date-fields { flex-basis: 100%; }
  .export-download { flex: 1; }
  .history-summary { grid-template-columns: 1fr; }
  .chart-card { padding: 15px; }
  .section-heading { align-items: flex-start; flex-direction: column; gap: 9px; }
  .chart-legend { justify-content: flex-start; }
  .canvas-wrap { height: 245px; }
  .chart-scale-row { align-items: flex-start; flex-direction: column; gap: 3px; }
}