/* ─── Variables ─────────────────────────────────────────── */
:root {
  --bg-page:   #0a0a0f;
  --bg-panel:  #111827;
  --bg-card:   #0f1724;
  --bg-card2:  #161f30;

  --color-border:     #00b4d8;
  --color-border-dim: #0d3d4a;

  --color-text:     #e2e8f0;
  --color-text-dim: #64748b;
  --color-label:    #94a3b8;

  --color-ok:       #00e676;
  --color-caution:  #ffea00;
  --color-alert:    #ff6d00;
  --color-critical: #f44336;
  --color-inactive: #37474f;

  --color-accent: #00b4d8;

  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  --font-ui:   'Inter', system-ui, sans-serif;

  --radius: 6px;
  --gap: 0.75rem;
}

/* ─── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg-page);
  color: var(--color-text);
  font-family: var(--font-ui);
  font-size: 14px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: var(--color-accent); text-decoration: none; }
button { cursor: pointer; background: none; border: none; }

/* ─── Header ─────────────────────────────────────────────── */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 1rem;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--color-border-dim);
  flex-shrink: 0;
}
.station-name {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-accent);
}
.station-loc {
  font-size: 0.72rem;
  color: var(--color-text-dim);
  margin-top: 1px;
}
.live-clock {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  text-align: center;
}
.last-updated {
  font-size: 0.68rem;
  color: var(--color-text-dim);
  text-align: center;
  margin-top: 2px;
}
.header-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.live-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--color-inactive);
  display: inline-block;
  flex-shrink: 0;
}
.live-dot.ok       { background: var(--color-ok);       animation: blink 2s ease-in-out infinite; }
.live-dot.stale    { background: var(--color-caution); }
.live-dot.offline  { background: var(--color-critical); }
.live-dot.error    { background: var(--color-critical); }
.live-dot.connecting { background: var(--color-inactive); animation: blink 0.6s ease-in-out infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:.15} }

.live-status-text {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-dim);
  letter-spacing: 0.08em;
}

/* ─── Alert Banner ───────────────────────────────────────── */
.alert-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 1rem;
  background: rgba(244, 67, 54, 0.15);
  border-bottom: 1px solid var(--color-critical);
  color: #ff8a80;
  font-size: 0.82rem;
  font-family: var(--font-mono);
}
.alert-dismiss {
  color: var(--color-critical);
  font-size: 1rem;
  padding: 0 0.25rem;
  opacity: 0.7;
  transition: opacity 0.2s;
}
.alert-dismiss:hover { opacity: 1; }

/* ─── Main grid ──────────────────────────────────────────── */
.main-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto 1fr;
  gap: var(--gap);
  padding: var(--gap);
  flex: 1;
}
.conditions-panel { grid-column: 1; grid-row: 1; }
.wind-panel       { grid-column: 2; grid-row: 1; }
.data-panel       { grid-column: 1 / -1; grid-row: 2; }

/* ─── Section header ─────────────────────────────────────── */
.section-header {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border-dim);
  margin-bottom: var(--gap);
}

/* ─── Panels ─────────────────────────────────────────────── */
.conditions-panel,
.wind-panel,
.data-panel,
.sensor-panel {
  background: var(--bg-panel);
  border: 1px solid var(--color-border-dim);
  border-radius: var(--radius);
  padding: var(--gap);
  box-shadow: 0 0 12px rgba(0,180,216,.06);
}

/* ─── Cards grid ─────────────────────────────────────────── */
.cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--color-border-dim);
  border-radius: var(--radius);
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  transition: border-color 0.4s, box-shadow 0.4s;
}
.card.status-ok       { border-color: var(--color-ok);       box-shadow: 0 0 8px rgba(0,230,118,.2); }
.card.status-caution  { border-color: var(--color-caution);  box-shadow: 0 0 8px rgba(255,234,0,.2); }
.card.status-alert    { border-color: var(--color-alert);    box-shadow: 0 0 8px rgba(255,109,0,.2); }
.card.status-critical { border-color: var(--color-critical); box-shadow: 0 0 8px rgba(244,67,54,.3); animation: card-pulse 1.2s ease-in-out infinite; }
.card.status-inactive { border-color: var(--color-inactive); }
@keyframes card-pulse { 0%,100%{box-shadow:0 0 8px rgba(244,67,54,.3)} 50%{box-shadow:0 0 18px rgba(244,67,54,.6)} }

.card-header {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.card-icon {
  width: 14px; height: 14px;
  color: var(--color-accent);
  flex-shrink: 0;
}
.card-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--color-label);
}
.card-value {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-text);
}
.card-unit {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--color-text-dim);
  margin-left: 2px;
}
.card-sublabel {
  font-size: 0.68rem;
  color: var(--color-text-dim);
  min-height: 1em;
}
.card-stats {
  display: flex;
  justify-content: space-between;
  font-size: 0.65rem;
  color: var(--color-text-dim);
  font-family: var(--font-mono);
  margin-top: auto;
}
.card-stats strong { color: var(--color-text); }

.card-gauge {
  height: 3px;
  background: var(--bg-page);
  border-radius: 2px;
  overflow: hidden;
}
.card-gauge-bar {
  height: 100%;
  border-radius: 2px;
  width: 0%;
  transition: width 0.6s ease, background 0.4s;
}

/* ─── Wind Panel ─────────────────────────────────────────── */
.wind-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.wind-speed-display {
  font-family: var(--font-mono);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-text);
  text-align: center;
  margin-bottom: 0.1rem;
}
.wind-speed-unit {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-dim);
}
.wind-speed-stats {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-text-dim);
  margin-bottom: 0.5rem;
}
.wind-speed-stats strong { color: var(--color-text); }
#compass-container {
  width: 180px;
  height: 180px;
  flex-shrink: 0;
}
.wind-dir-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-label);
  text-align: center;
  margin-top: 0.4rem;
  letter-spacing: 0.05em;
}

/* ─── Data panel / tabs ──────────────────────────────────── */
.tab-bar {
  display: flex;
  gap: 2px;
  margin-bottom: var(--gap);
  border-bottom: 1px solid var(--color-border-dim);
}
.tab-btn {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--color-text-dim);
  padding: 0.4rem 1rem;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.tab-btn:hover  { color: var(--color-text); }
.tab-btn.active { color: var(--color-accent); border-bottom-color: var(--color-accent); }

.tab-pane { display: block; }
.tab-pane.hidden { display: none; }

/* ─── Chart toolbar ─────────────────────────────────────── */
.chart-toolbar {
  display: flex;
  gap: 1.5rem;
  margin-bottom: var(--gap);
  flex-wrap: wrap;
}
.toolbar-group {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.toolbar-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--color-text-dim);
  margin-right: 0.25rem;
}
.range-btn, .overlay-btn {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--color-border-dim);
  border-radius: 3px;
  color: var(--color-text-dim);
  background: var(--bg-card);
  transition: all 0.2s;
}
.range-btn:hover, .overlay-btn:hover { border-color: var(--color-accent); color: var(--color-text); }
.range-btn.active, .overlay-btn.active { border-color: var(--color-accent); color: var(--color-accent); background: rgba(0,180,216,.1); }
.overlay-btn.off { opacity: 0.4; }

/* ─── Charts grid ────────────────────────────────────────── */
.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
}
.chart-wrap {
  background: var(--bg-card);
  border: 1px solid var(--color-border-dim);
  border-radius: var(--radius);
  padding: 0.6rem;
}
.chart-wrap.chart-full { grid-column: 1 / -1; }
.chart-title {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--color-label);
  margin-bottom: 0.4rem;
}
.chart-canvas-wrap {
  position: relative;
  height: 160px;
}

/* ─── History tab ────────────────────────────────────────── */
.date-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--gap);
}
.date-nav-btn {
  color: var(--color-accent);
  font-size: 0.9rem;
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--color-border-dim);
  border-radius: 3px;
  background: var(--bg-card);
  transition: background 0.2s;
}
.date-nav-btn:hover { background: rgba(0,180,216,.1); }
.date-input {
  background: var(--bg-card);
  border: 1px solid var(--color-border-dim);
  border-radius: 3px;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.25rem 0.5rem;
  outline: none;
}
.date-input:focus { border-color: var(--color-accent); }
.today-badge {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  background: rgba(0,230,118,.15);
  color: var(--color-ok);
  border: 1px solid var(--color-ok);
  border-radius: 3px;
  padding: 0.15rem 0.4rem;
}

.history-loading, .history-empty {
  text-align: center;
  color: var(--color-text-dim);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 2rem;
}

.summary-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--gap);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}
.summary-table th {
  text-align: left;
  color: var(--color-label);
  letter-spacing: 0.08em;
  font-size: 0.65rem;
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--color-border-dim);
}
.summary-table td {
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid rgba(13,61,74,.5);
  color: var(--color-text);
}
.summary-table tr:last-child td { border-bottom: none; }
.summary-table tr:hover td { background: rgba(0,180,216,.04); }

.download-bar {
  display: flex;
  gap: var(--gap);
  flex-wrap: wrap;
  margin-top: var(--gap);
}
.dl-btn {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: 3px;
  padding: 0.35rem 0.8rem;
  background: rgba(0,180,216,.08);
  transition: background 0.2s;
}
.dl-btn:hover { background: rgba(0,180,216,.18); }

/* ─── Sensor panel ───────────────────────────────────────── */
.sensor-panel {
  margin: var(--gap);
  margin-top: 0;
}
.sensor-rows {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 0.5rem;
}
.sensor-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
}
.sensor-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--color-inactive);
  flex-shrink: 0;
}
.sensor-dot.ok       { background: var(--color-ok); }
.sensor-dot.error,
.sensor-dot.fault    { background: var(--color-critical); }
.sensor-dot.unknown  { background: var(--color-inactive); }
.sensor-name  { color: var(--color-text); min-width: 160px; font-family: var(--font-mono); font-size: 0.72rem; }
.sensor-status-text {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  min-width: 60px;
}
.sensor-status-text.ok     { color: var(--color-ok); }
.sensor-status-text.error,
.sensor-status-text.fault  { color: var(--color-critical); }
.sensor-status-text.unknown { color: var(--color-inactive); }
.sensor-msg { font-size: 0.68rem; color: var(--color-text-dim); }
.sensor-check-time {
  font-size: 0.65rem;
  color: var(--color-text-dim);
  font-family: var(--font-mono);
}

/* ─── Utilities ──────────────────────────────────────────── */
.hidden { display: none !important; }

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width: 900px) {
  .main-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
  .conditions-panel, .wind-panel, .data-panel {
    grid-column: 1;
    grid-row: auto;
  }
  .cards-grid { grid-template-columns: 1fr 1fr; }
  .charts-grid { grid-template-columns: 1fr; }
  .chart-wrap.chart-full { grid-column: 1; }
}
@media (max-width: 480px) {
  .cards-grid { grid-template-columns: 1fr; }
  .site-header { flex-wrap: wrap; gap: 0.4rem; }
  .header-center { order: -1; width: 100%; text-align: center; }
}

/* ─── Print ───────────────────────────────────────────────── */
@media print {
  .tab-bar, .chart-toolbar, .sensor-panel, .alert-banner,
  .download-bar, .date-nav, .header-right { display: none !important; }
  body { background: white; color: black; }
  .main-grid { grid-template-columns: 1fr; }
  .card { border: 1px solid #ccc; break-inside: avoid; }
}