* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0e1117;
  --bg-elevated: #161b22;
  --bg-card: #1c2128;
  --border: #30363d;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --accent: #58a6ff;
  --green: #3fb950;
  --yellow: #d29922;
  --orange: #db6d28;
  --red: #f85149;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px;
}

header h1 {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 4px;
  letter-spacing: -0.5px;
}

header .subtitle {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 28px;
}

.search-bar {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr auto;
  gap: 12px;
  align-items: end;
  margin-bottom: 20px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.field input {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 12px;
  border-radius: 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 14px;
  text-transform: uppercase;
  transition: border-color 0.15s;
}

.field input:focus {
  outline: none;
  border-color: var(--accent);
}

button {
  background: var(--accent);
  color: #0e1117;
  border: none;
  padding: 9px 22px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  height: 38px;
  transition: filter 0.15s;
}

button:hover:not(:disabled) {
  filter: brightness(1.1);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.error {
  background: rgba(248, 81, 73, 0.1);
  border: 1px solid var(--red);
  color: var(--red);
  padding: 12px 16px;
  border-radius: 6px;
  margin-bottom: 20px;
  font-size: 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.risk-summary {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 20px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 32px;
  align-items: center;
}

.risk-gauge {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 32px;
  border-right: 1px solid var(--border);
}

.risk-score {
  font-size: 64px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  letter-spacing: -2px;
}

.risk-band {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  margin-top: 8px;
  padding: 4px 14px;
  border-radius: 12px;
  background: var(--bg-card);
}

.band-low { color: var(--green); }
.band-moderate { color: var(--yellow); }
.band-high { color: var(--orange); }
.band-severe { color: var(--red); }

.band-low.risk-band { background: rgba(63, 185, 80, 0.15); }
.band-moderate.risk-band { background: rgba(210, 153, 34, 0.15); }
.band-high.risk-band { background: rgba(219, 109, 40, 0.15); }
.band-severe.risk-band { background: rgba(248, 81, 73, 0.18); }

.risk-meta {
  display: grid;
  gap: 4px;
}

.risk-meta > div {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.risk-meta > div:last-child {
  border-bottom: none;
}

.risk-meta .label {
  color: var(--text-muted);
  font-weight: 500;
}

.factors {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 20px;
}

.factors h2 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}

.factor {
  display: grid;
  grid-template-columns: 220px 1fr 80px;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  align-items: center;
}

.factor:last-child {
  border-bottom: none;
}

.factor-name {
  font-weight: 600;
  font-size: 14px;
}

.factor-desc {
  color: var(--text-muted);
  font-size: 13px;
}

.factor-score {
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 16px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.source-notes {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-muted);
  font-style: italic;
}

.source-notes:empty {
  display: none;
}

.weather-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

.weather-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
}

.weather-card h3 {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 700;
}

.wx-row {
  display: flex;
  justify-content: space-between;
  padding: 5px 0;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}

.wx-row .label {
  color: var(--text-muted);
}

.wx-row.raw {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  color: var(--text-muted);
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cat-VFR { color: var(--green); font-weight: 700; }
.cat-MVFR { color: var(--yellow); font-weight: 700; }
.cat-IFR { color: var(--orange); font-weight: 700; }
.cat-LIFR { color: var(--red); font-weight: 700; }

footer {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 13px;
  text-align: center;
}

footer a {
  color: var(--accent);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

footer .note {
  margin-top: 6px;
  font-size: 12px;
  opacity: 0.7;
}

@media (max-width: 760px) {
  .container { padding: 20px 16px; }
  .search-bar { grid-template-columns: 1fr; }
  .weather-grid { grid-template-columns: 1fr; }
  .risk-summary {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .risk-gauge {
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 0 0 20px 0;
  }
  .factor {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .factor-score { text-align: left; }
}