:root {
  --bg: #f5f7fa;
  --card: #ffffff;
  --card-border: #e2e8f0;
  --text: #1a202c;
  --text-dim: #718096;
  --accent: #3182ce;
  --pass: #38a169;
  --pass-bg: rgba(56,161,105,0.08);
  --block: #e53e3e;
  --block-bg: rgba(229,62,62,0.06);
  --warn: #dd6b20;
  --warn-bg: rgba(221,107,32,0.06);
}
* { margin:0; padding:0; box-sizing:border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding: 16px;
}
.container { max-width: 1100px; margin: 0 auto; }
h1 { font-size: 1.3rem; font-weight: 600; margin-bottom: 4px; }
.subtitle { color: var(--text-dim); font-size: 0.85rem; margin-bottom: 20px; }

/* Status Banner */
.status-banner {
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 16px;
  text-align: center;
  transition: all 0.5s ease;
}
.status-banner.pass { background: var(--pass-bg); border: 2px solid var(--pass); }
.status-banner.block { background: var(--block-bg); border: 2px solid var(--block); }
.status-banner.warn { background: var(--warn-bg); border: 2px solid var(--warn); }
.status-icon { font-size: 2.5rem; margin-bottom: 8px; }
.status-text { font-size: 1.6rem; font-weight: 700; margin-bottom: 4px; }
.status-banner.pass .status-text { color: var(--pass); }
.status-banner.block .status-text { color: var(--block); }
.status-banner.warn .status-text { color: var(--warn); }
.status-detail { color: var(--text-dim); font-size: 0.95rem; }
.status-detail strong { color: var(--text); }

/* Info Grid */
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}
@media (max-width: 700px) { .info-grid { grid-template-columns: 1fr; } }
.info-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 16px;
}
.info-label { color: var(--text-dim); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 6px; }
.info-value { font-size: 1.5rem; font-weight: 700; }
.info-sub { color: var(--text-dim); font-size: 0.82rem; margin-top: 4px; }

/* Flow Direction */
.flow-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.flow-map-container {
  position: relative;
  width: 100%;
  height: 220px;
  overflow: hidden;
}
.flow-map-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 75%;
  display: block;
}
.flow-map-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  background: rgba(0,0,0,0.25);
}
.flow-arrow-overlay {
  display: flex;
  align-items: center;
  gap: 12px;
}
.flow-arrow {
  font-size: 2.5rem;
  transition: all 0.5s ease;
  text-shadow: 0 2px 8px rgba(0,0,0,0.4);
  filter: drop-shadow(0 1px 3px rgba(0,0,0,0.3));
}
.flow-label-left {
  position: absolute;
  top: 8px;
  left: 12px;
  font-size: 0.7rem;
  font-weight: 600;
  color: #fff;
  text-shadow: 0 1px 4px rgba(0,0,0,0.7);
  line-height: 1.3;
}
.flow-label-right {
  position: absolute;
  top: 8px;
  right: 12px;
  font-size: 0.7rem;
  font-weight: 600;
  color: #fff;
  text-shadow: 0 1px 4px rgba(0,0,0,0.7);
  text-align: right;
  line-height: 1.3;
}
.flow-nassauhaven-label {
  position: absolute;
  bottom: 8px;
  right: 12px;
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  text-shadow: 0 1px 4px rgba(0,0,0,0.7);
  background: rgba(56,161,105,0.7);
  padding: 2px 8px;
  border-radius: 4px;
}
.flow-osm-attr {
  position: absolute;
  bottom: 4px;
  left: 8px;
  font-size: 0.55rem;
  color: rgba(255,255,255,0.6);
  text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}
.flow-info {
  padding: 12px 16px;
}
.flow-info .info-label { margin-bottom: 4px; }
.flow-direction-text { font-size: 1.1rem; font-weight: 600; margin-bottom: 2px; }
.flow-speed-text { font-size: 0.9rem; color: var(--text-dim); }
.flow-phase-text { font-size: 0.85rem; color: var(--accent); margin-top: 4px; }

@media (max-width: 700px) {
  .flow-map-container { height: 160px; }
}

/* Chart */
.chart-container {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
}
.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.chart-title { font-size: 1rem; font-weight: 600; }
.chart-toggle {
  display: flex;
  gap: 4px;
  background: var(--bg);
  border-radius: 8px;
  padding: 3px;
}
.chart-toggle button {
  background: none;
  border: none;
  color: var(--text-dim);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.82rem;
  transition: all 0.2s;
}
.chart-toggle button.active {
  background: var(--accent);
  color: white;
}
.chart-wrap { position: relative; height: 320px; }
@media (max-width: 700px) { .chart-wrap { height: 250px; } }

/* Legend */
.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 10px;
  font-size: 0.8rem;
  color: var(--text-dim);
}
.legend-item { display: flex; align-items: center; gap: 6px; }
.legend-color {
  width: 16px;
  height: 3px;
  border-radius: 2px;
}
.legend-color.dashed {
  background: repeating-linear-gradient(90deg, var(--block) 0 6px, transparent 6px 10px);
}

/* Settings */
.settings-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
}
.settings-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
}
.settings-header h3 { font-size: 0.95rem; }
.settings-toggle { color: var(--text-dim); font-size: 1.2rem; transition: transform 0.3s; }
.settings-body { display: none; margin-top: 16px; }
.settings-body.open { display: block; }
.setting-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.setting-label { width: 180px; font-size: 0.88rem; flex-shrink: 0; }
.setting-label small { display: block; color: var(--text-dim); font-size: 0.75rem; }
.setting-input {
  flex: 1;
  min-width: 100px;
}
.setting-input input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}
.setting-value {
  width: 70px;
  text-align: right;
  font-weight: 600;
  font-size: 0.95rem;
  flex-shrink: 0;
}

/* Data source indicator */
.data-source {
  text-align: center;
  padding: 8px;
  font-size: 0.75rem;
  color: var(--text-dim);
  border-top: 1px solid var(--card-border);
  margin-top: 8px;
}
.data-source .live { color: var(--pass); }
.data-source .astro { color: var(--warn); }

/* Disclaimer */
.disclaimer {
  background: rgba(245,158,11,0.08);
  border: 1px solid rgba(245,158,11,0.2);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 0.78rem;
  color: var(--text-dim);
  line-height: 1.5;
  margin-bottom: 16px;
}
.disclaimer strong { color: var(--warn); }

/* Refresh indicator */
.refresh-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 12px;
}
.refresh-bar button {
  background: var(--card);
  border: 1px solid var(--card-border);
  color: var(--text);
  padding: 4px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.78rem;
}
.refresh-bar button:hover { border-color: var(--accent); }

/* Rain bars */
.rain-bar {
  flex: 1;
  min-width: 3px;
  border-radius: 2px 2px 0 0;
  transition: height 0.3s ease, background 0.3s ease;
  position: relative;
}
.rain-bar:hover::after {
  content: attr(data-tip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--card);
  border: 1px solid var(--card-border);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.65rem;
  white-space: nowrap;
  color: var(--text);
  z-index: 10;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.rain-bar-now {
  border-left: 2px solid var(--accent);
}

/* Data sources status bar */
.data-sources-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  padding: 8px 0;
  margin-bottom: 12px;
  font-size: 0.75rem;
  color: var(--text-dim);
}
.source-indicator {
  display: flex;
  align-items: center;
  gap: 4px;
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-dim);
  display: inline-block;
}
.status-dot.live { background: var(--pass); }
.status-dot.loading { background: var(--warn); animation: pulse 1.5s infinite; }
.status-dot.error { background: var(--block); }
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Weather grid */
.weather-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}
@media (max-width: 700px) { .weather-grid { grid-template-columns: 1fr; } }