:root {
  --bg: #0a0f16;
  --card: #0f1621;
  --panel: #0b1119;
  --raised: #131c28;
  --text: #dfe7ee;
  --muted: #7f8b99;
  --border: #1b2634;
  --border-strong: #2a3a4e;
  --accent: #6ea8fe;
  --amber: #ffb020;
  --green: #34d17b;
  --red: #ef5350;
  --gold: #d4a017;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "Roboto Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 0.95rem;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

main { max-width: 54rem; margin: 0 auto; padding: 1.75rem 1rem 4rem; }

h1, h2 {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin: 0 0 1rem;
}
h1::before, h2::before { content: "▸ "; color: var(--amber); }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }

:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; border-radius: 2px; }

/* topbar */
.topbar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.65rem 1.25rem;
  border-bottom: 1px solid var(--border);
}
.topbar .brand { font-family: var(--mono); font-weight: 700; font-size: 0.9rem; color: var(--amber); letter-spacing: 0.02em; }
.topbar nav { display: flex; gap: 1.1rem; flex: 1; }
.topbar nav a { text-decoration: none; color: var(--muted); font-size: 0.9rem; transition: color 0.12s; }
.topbar nav a:hover { color: var(--text); }

/* buttons */
.btn {
  font: inherit;
  font-size: 0.88rem;
  padding: 0.35rem 0.85rem;
  border-radius: 7px;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.12s, background 0.12s, color 0.12s;
}
.btn:hover { border-color: var(--muted); background: var(--raised); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #0a0f16; font-weight: 650; }
.btn-primary:hover { background: #85b6ff; border-color: #85b6ff; }
.btn-danger { color: var(--red); border-color: rgba(239, 83, 80, 0.5); }
.btn-danger:hover { border-color: var(--red); background: rgba(239, 83, 80, 0.08); }
.btn-quiet { color: var(--muted); border-color: transparent; }
.btn-quiet:hover { color: var(--text); border-color: var(--border-strong); background: transparent; }

.inline-form { display: inline; }
.empty { color: var(--muted); }
.muted-text { color: var(--muted); }
.hint { color: var(--muted); font-size: 0.85rem; margin: 0.25rem 0 0; }

.flash { padding: 0.6rem 0.9rem; border-radius: 8px; font-size: 0.9rem; }
.flash-error { background: rgba(239, 83, 80, 0.1); color: var(--red); border: 1px solid rgba(239, 83, 80, 0.35); }
.flash-success { background: rgba(52, 209, 123, 0.1); color: var(--green); border: 1px solid rgba(52, 209, 123, 0.35); }

/* login */
.login-box { max-width: 20rem; margin: 15vh auto; background: var(--card); padding: 2rem;
  border: 1px solid var(--border); border-radius: 12px; }
.login-box form { display: flex; flex-direction: column; gap: 0.75rem; }
.login-box input { font: inherit; padding: 0.45rem 0.6rem; border: 1px solid var(--border-strong); border-radius: 7px;
  background: var(--panel); color: var(--text); }

/* badges */
.badge {
  display: inline-block;
  padding: 0.08rem 0.45rem;
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}
.tier-exceptional { color: var(--gold); border: 1px solid rgba(212, 160, 23, 0.5); }
.tier-good { color: var(--green); border: 1px solid rgba(52, 209, 123, 0.35); }
.badge-low { color: var(--amber); border: 1px solid rgba(255, 176, 32, 0.35); }
.badge-muted { color: var(--muted); border: 1px solid var(--border-strong); }
.status-candidate { color: var(--muted); border: 1px solid var(--border-strong); }
.status-verified { color: var(--green); border: 1px solid rgba(52, 209, 123, 0.35); }
.status-alerted { color: var(--accent); border: 1px solid rgba(110, 168, 254, 0.35); }
.status-rejected, .status-expired { color: var(--muted); border: 1px solid var(--border); text-decoration: line-through; }
.kind-instant { color: var(--red); border: 1px solid rgba(239, 83, 80, 0.35); }
.kind-digest { color: var(--accent); border: 1px solid rgba(110, 168, 254, 0.35); }
.badge-new {
  color: #0a0f16;
  background: var(--accent);
  border: 1px solid var(--accent);
  transition: opacity 360ms ease;
}
.badge-new.htmx-swapping { opacity: 0; }

/* deal feed: filter toolbar */
.filter-toolbar {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(8.5rem, 1fr));
  gap: 0.7rem 0.8rem;
  align-items: end;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  padding: 0.9rem 1rem;
  margin-bottom: 1.5rem;
}
.filter-toolbar label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}
.filter-toolbar select, .filter-toolbar input {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 0.85rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
  width: 100%;
  min-width: 0;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--border-strong);
  border-radius: 7px;
  background: var(--panel);
  color: var(--text);
  transition: border-color 0.12s;
}
.filter-toolbar select:hover, .filter-toolbar input:hover { border-color: var(--muted); }
.filter-toolbar .btn { align-self: end; justify-self: start; }
.filter-toolbar a.btn { text-decoration: none; text-align: center; }

/* deal feed: departures board cards */
.deal-list { display: flex; flex-direction: column; gap: 0.8rem; }
.deal-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.2rem 0.9rem;
  transition: border-color 0.12s;
}
.deal-card:hover { border-color: var(--border-strong); }
.deal-exceptional { border-color: rgba(212, 160, 23, 0.45); }
.deal-exceptional:hover { border-color: rgba(212, 160, 23, 0.7); }

.deal-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.deal-head-route { display: flex; flex-direction: column; gap: 0.05rem; min-width: 0; }
.deal-route {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: var(--amber);
}
.deal-subtitle { color: var(--muted); font-size: 0.85rem; }
.deal-head-price { display: flex; flex-direction: column; align-items: flex-end; gap: 0.05rem; text-align: right; }
.deal-price { font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: 1.7rem; font-weight: 700; line-height: 1.1; }
.deal-price-context { display: flex; align-items: baseline; gap: 0.6rem; }
.deal-vs-median { font-family: var(--mono); font-variant-numeric: tabular-nums; color: var(--green); font-size: 0.82rem; }
.deal-found-at { font-family: var(--mono); font-variant-numeric: tabular-nums; color: var(--muted); font-size: 0.78rem; }

.scale-track {
  position: relative;
  height: 3px;
  border-radius: 999px;
  margin: 0.9rem 0 0.7rem;
  background: linear-gradient(90deg,
    rgba(52, 209, 123, 0.75),
    rgba(255, 176, 32, 0.75) 55%,
    rgba(239, 83, 80, 0.75));
}
.scale-band { position: absolute; top: -3px; bottom: -3px; background: rgba(223, 231, 238, 0.18); border-radius: 4px; }
.scale-median { position: absolute; top: -5px; bottom: -5px; width: 1px; background: rgba(223, 231, 238, 0.7); }
.scale-marker {
  position: absolute; top: 50%; width: 11px; height: 11px; margin-top: -5.5px; margin-left: -5.5px;
  background: var(--amber); border-radius: 50%; box-shadow: 0 0 0 3px var(--card);
}

.deal-insights {
  display: flex; align-items: center; gap: 0.7rem;
  color: var(--muted); font-size: 0.82rem;
  font-family: var(--mono); font-variant-numeric: tabular-nums;
  margin: 0.4rem 0;
}
.sparkline { width: 84px; height: 20px; flex-shrink: 0; opacity: 0.9; }
.sparkline polyline { fill: none; stroke: var(--accent); stroke-width: 1.5; vector-effect: non-scaling-stroke; }

.deal-meta {
  display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
}
.deal-head-badges { display: inline-flex; align-items: center; gap: 0.35rem; flex-wrap: wrap; }

.deal-actions { margin-top: 0.75rem; display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.btn-book {
  display: inline-block; background: var(--accent); color: #0a0f16; font-weight: 700; font-size: 0.9rem;
  padding: 0.5rem 1.1rem; border-radius: 8px; border: 1px solid var(--accent); text-decoration: none;
  transition: background 0.12s, border-color 0.12s;
}
.btn-book:hover { background: #85b6ff; border-color: #85b6ff; }
.deal-actions .inline-form { margin-left: auto; }

/* tables */
.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; background: var(--card);
  border: 1px solid var(--border); border-radius: 12px; }
.data-table th, .data-table td { text-align: left; padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border); font-size: 0.9rem; }
.data-table th { color: var(--muted); font-family: var(--mono); font-size: 0.68rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em; }
.data-table td { font-variant-numeric: tabular-nums; }
.data-table tbody tr:nth-child(even) { background: rgba(255, 255, 255, 0.02); }

/* calendar */
.calendar { background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 1rem; margin-bottom: 1.5rem; }
.calendar-nav { display: flex; align-items: center; justify-content: space-between; }
.calendar-nav h2 { margin: 0; }
.month-grid { width: 100%; border-collapse: collapse; table-layout: fixed; margin-top: 0.75rem; }
.month-grid th { color: var(--muted); font-family: var(--mono); font-weight: 600; font-size: 0.68rem;
  text-transform: uppercase; letter-spacing: 0.08em; padding: 0.25rem; }
.month-grid td { border: 1px solid var(--border); vertical-align: top; height: 3.4rem; padding: 0.2rem; }
.month-grid td.out-month .daynum { color: var(--muted); opacity: 0.5; }
.month-grid td.today .daynum { background: var(--amber); color: #0a0f16; border-radius: 50%;
  display: inline-block; width: 1.4rem; text-align: center; font-weight: 700; }
.daynum { font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: 0.75rem; color: var(--text); }
.period-span { display: block; height: 0.45rem; border-radius: 3px; margin-top: 2px; }
.legend-item .period-span, summary .period-span { display: inline-block; width: 1.2rem; height: 0.6rem; margin-right: 0.3rem; }
.period-span.inactive { opacity: 0.35; }
.pc0 { background: #4d7cc4; }
.pc1 { background: #3c9868; }
.pc2 { background: #c4922f; }
.pc3 { background: #a85c92; }
.pc4 { background: #4a9bb3; }
.pc5 { background: #8672b8; }
.legend { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 0.6rem; font-size: 0.85rem; }
.legend-item { display: inline-flex; align-items: center; }

/* period list + forms */
.period-item { background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 0.6rem 0.9rem; margin-bottom: 0.6rem; }
.period-item summary { cursor: pointer; display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.period-form, .settings-form fieldset { display: grid; grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
  gap: 0.6rem 1rem; margin-top: 0.75rem; }
.period-form label, .settings-form label, .field-group { display: flex; flex-direction: column;
  font-size: 0.85rem; color: var(--muted); gap: 0.25rem; }
.period-form input, .settings-form input, .settings-form select {
  font: inherit; padding: 0.35rem 0.5rem; border: 1px solid var(--border-strong); border-radius: 7px;
  background: var(--panel); color: var(--text); transition: border-color 0.12s; }
.period-form input:hover, .settings-form input:hover, .settings-form select:hover { border-color: var(--muted); }
label.checkbox { flex-direction: row; align-items: center; gap: 0.4rem; }
.settings-form fieldset { border: 1px solid var(--border); border-radius: 12px;
  background: var(--card); padding: 0.9rem 1.1rem; margin-bottom: 1rem; }
.settings-form legend { font-family: var(--mono); font-size: 0.68rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); padding: 0 0.3rem; }
.field-label { font-weight: 600; color: var(--text); }

.muted-list { list-style: none; padding: 0; }
.muted-list li { display: flex; align-items: center; gap: 0.75rem; padding: 0.25rem 0; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}