:root {
  --bg: #0b1220;
  --bg-elev: #0f172a;
  --surface: #131c2e;
  --surface-2: #182338;
  --border: #1f2a44;
  --border-strong: #2a3a5e;
  --text: #e6edf7;
  --muted: #93a3bf;
  --dim: #6c7a96;
  --accent: #7cc4ff;
  --accent-2: #a78bfa;
  --warm: #ffb86b;
  --good: #6ee7b7;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --radius: 14px;
  --radius-sm: 10px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: linear-gradient(180deg, #0b1220 0%, rgba(11, 18, 32, 0.96) 100%);
  border-bottom: 1px solid var(--border);
  backdrop-filter: saturate(140%) blur(10px);
}

.header-inner {
  max-width: 920px;
  margin: 0 auto;
  padding: 18px 20px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.eyebrow {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

h1 {
  margin: 4px 0 2px;
  font-size: 28px;
  letter-spacing: -0.01em;
  font-weight: 700;
}

.accent {
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.travelers {
  color: var(--muted);
  font-size: 14px;
}

.weather-stub {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #1f3a64, #0b1220 70%);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-strong);
}

.aurora {
  position: absolute;
  inset: -20%;
  background: conic-gradient(from 90deg at 50% 50%, #7cc4ff, #a78bfa, #6ee7b7, #7cc4ff);
  filter: blur(14px);
  opacity: 0.5;
  animation: spin 14s linear infinite;
}

@keyframes spin {
  to { transform: rotate(1turn); }
}

/* ---------- Tabs ---------- */
.tabs {
  max-width: 920px;
  margin: 0 auto;
  padding: 6px 12px 10px;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }

.tab {
  flex: 0 0 auto;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.tab:hover {
  text-decoration: none;
  color: var(--text);
  border-color: var(--border-strong);
}

.tab.active {
  background: linear-gradient(180deg, rgba(124, 196, 255, 0.18), rgba(167, 139, 250, 0.14));
  border-color: rgba(124, 196, 255, 0.55);
  color: var(--text);
}

/* ---------- Content ---------- */
.content {
  max-width: 920px;
  margin: 0 auto;
  padding: 22px 20px 80px;
}

.loading {
  color: var(--muted);
  padding: 40px 0;
  text-align: center;
}

.page-title {
  margin: 0 0 4px;
  font-size: 26px;
  letter-spacing: -0.01em;
}

.page-subtitle {
  color: var(--muted);
  margin: 0 0 20px;
  font-size: 14px;
}

/* ---------- Sections / Cards ---------- */
.section {
  margin: 22px 0;
}

.section-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.section-heading::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(124, 196, 255, 0.15);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin: 10px 0;
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 6px;
  font-size: 17px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.card p {
  margin: 6px 0 0;
  color: var(--text);
}

.card .meta {
  color: var(--muted);
  font-size: 13px;
  margin-top: 6px;
}

.card .links {
  margin-top: 10px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.card.muted {
  background: transparent;
  border-style: dashed;
  box-shadow: none;
}

/* Time chip */
.time {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent);
  background: rgba(124, 196, 255, 0.08);
  border: 1px solid rgba(124, 196, 255, 0.25);
  padding: 3px 8px;
  border-radius: 999px;
}

.tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--muted);
  background: var(--surface-2);
}

.tag.warn { color: var(--warm); border-color: rgba(255, 184, 107, 0.4); background: rgba(255, 184, 107, 0.08); }
.tag.good { color: var(--good); border-color: rgba(110, 231, 183, 0.4); background: rgba(110, 231, 183, 0.08); }
.tag.cool { color: var(--accent); border-color: rgba(124, 196, 255, 0.4); background: rgba(124, 196, 255, 0.08); }

/* Pill button (link) */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  color: var(--text);
}
.btn:hover { background: #21304d; text-decoration: none; }
.btn.primary {
  background: linear-gradient(180deg, rgba(124, 196, 255, 0.18), rgba(167, 139, 250, 0.18));
  border-color: rgba(124, 196, 255, 0.5);
  color: var(--text);
}

/* Time block grouping */
.timeblock {
  border-left: 2px solid var(--border-strong);
  padding-left: 14px;
  margin: 14px 0 22px;
}
.timeblock-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

/* Stat grid */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin: 14px 0 4px;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
}
.stat .label {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.stat .value {
  font-size: 18px;
  font-weight: 600;
  margin-top: 4px;
}

/* Booking ref */
.kbd {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  padding: 2px 6px;
  border-radius: 6px;
  font-size: 13px;
  letter-spacing: 0.04em;
}

/* Sleep callout */
.sleep {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(167, 139, 250, 0.10), rgba(124, 196, 255, 0.06));
  border: 1px solid rgba(167, 139, 250, 0.35);
  margin-top: 18px;
}
.sleep .sleep-title { font-weight: 600; }
.sleep .sleep-meta { color: var(--muted); font-size: 13px; }

/* Lists */
ul.clean {
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
}
ul.clean li {
  padding: 6px 0;
  border-bottom: 1px dashed var(--border);
}
ul.clean li:last-child { border-bottom: none; }

/* Footer */
.site-footer {
  text-align: center;
  color: var(--dim);
  padding: 16px;
  font-size: 12px;
}

/* Fade-in on swap */
.content > * {
  animation: fade-in 0.22s ease;
}
@keyframes fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 520px) {
  h1 { font-size: 24px; }
  .header-inner { padding: 14px 16px 10px; }
  .content { padding: 18px 16px 80px; }
  .card { padding: 14px; }
}