:root {
  --brand: #1a3a8a;
  --brand-light: #eef1f8;
  --good: #0a7a3f;
  --bad: #b00020;
  --warn: #b8860b;
  --text: #1a1a1a;
  --muted: #6b7280;
  --card: #ffffff;
  --bg: #f4f6fa;
  --border: #d1d5db;
  --chip-bg: #eef1f8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --brand: #6c8cff;
    --brand-light: #1f2740;
    --good: #4ade80;
    --bad: #ff6b81;
    --warn: #f5b301;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --card: #1c2230;
    --bg: #0e131f;
    --border: #374151;
    --chip-bg: #1f2740;
  }
  header { background: #111733; }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  padding-bottom: env(safe-area-inset-bottom);
}

header {
  background: var(--brand);
  color: #fff;
  padding: calc(env(safe-area-inset-top) + 16px) 20px 20px;
}
header h1 { margin: 0; font-size: 22px; }
header .sub { margin: 4px 0 0; color: #cdd9f5; font-size: 13px; }

main { padding: 16px; max-width: 600px; margin: 0 auto; }

.card, .summary {
  background: var(--card);
  border-radius: 12px;
  padding: 16px 18px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  margin-bottom: 16px;
}
.card h2 { margin: 0 0 10px; font-size: 16px; }
.summary { padding: 20px; }
.summary.over { border: 2px solid var(--bad); }
.summary-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 6px;
}
.big-num { font-size: 38px; font-weight: 700; color: var(--brand); }
.big-num.good { color: var(--good); }
.big-num.bad  { color: var(--bad); }
.big-label { color: var(--muted); font-size: 14px; }
.window-text { color: var(--muted); font-size: 12px; margin-top: 8px; }
.current-trip-info { background: var(--brand-light); color: var(--brand); padding: 6px 10px; border-radius: 6px; font-size: 13px; margin-top: 10px; font-weight: 600; }

.banner {
  background: #fff3cd; color: #7a5a00; border: 1px solid #f5b301;
  padding: 10px 14px; border-radius: 10px; font-size: 14px;
  margin-bottom: 16px;
}
.banner.bad { background: #fde2e4; color: var(--bad); border-color: var(--bad); }
@media (prefers-color-scheme: dark) {
  .banner { background: #3a2e0a; color: #ffd986; border-color: #b8860b; }
  .banner.bad { background: #3b1b22; color: #ff8da1; }
}

.peek {
  background: var(--card);
  border-radius: 12px;
  padding: 14px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.peek label { font-size: 14px; color: var(--muted); }
.peek input[type="date"] { padding: 6px 8px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; background: var(--card); color: var(--text); }
.link { background: none; border: none; color: var(--brand); cursor: pointer; font-size: 13px; padding: 0; text-decoration: underline; }

/* Timeline */
.timeline-section .timeline {
  display: grid;
  grid-template-columns: repeat(30, 1fr);
  gap: 2px;
  margin: 6px 0;
}
.tl-cell {
  aspect-ratio: 1;
  background: var(--chip-bg);
  border-radius: 2px;
  position: relative;
}
.tl-cell.used { background: var(--brand); }
.tl-cell.today { outline: 2px solid var(--warn); outline-offset: -1px; z-index: 1; }
.tl-cell.month-start { border-left: 2px solid var(--muted); }
.timeline-legend { display: flex; gap: 14px; color: var(--muted); font-size: 12px; margin-top: 8px; }
.timeline-legend i { display: inline-block; width: 12px; height: 12px; border-radius: 2px; vertical-align: middle; margin-right: 4px; }
.timeline-legend i.used { background: var(--brand); }
.timeline-legend i.today { background: var(--chip-bg); outline: 2px solid var(--warn); }

/* Planner */
.planner-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 8px 0; flex-wrap: wrap; }
.planner-row label { font-size: 14px; color: var(--muted); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.planner-row input { padding: 6px 8px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; background: var(--card); color: var(--text); }
.planner-row input[type="number"] { width: 70px; }
.planner-result { font-weight: 600; color: var(--brand); font-size: 14px; }
.planner-result.bad { color: var(--bad); }

/* Country totals */
.country-bar { display: flex; align-items: center; gap: 8px; margin: 4px 0; font-size: 14px; }
.country-bar .name { width: 110px; flex-shrink: 0; }
.country-bar .track { flex: 1; height: 8px; background: var(--chip-bg); border-radius: 4px; overflow: hidden; }
.country-bar .fill { height: 100%; background: var(--brand); }
.country-bar .num { width: 50px; text-align: right; color: var(--muted); font-variant-numeric: tabular-nums; }

.trips-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.trips-header h2 { margin: 0; font-size: 18px; }
.trips-actions { display: flex; gap: 6px; }

button.primary {
  background: var(--brand); color: #fff; border: none;
  padding: 8px 14px; border-radius: 8px; font-weight: 600; cursor: pointer;
}
button.danger {
  background: var(--bad); color: #fff; border: none;
  padding: 8px 14px; border-radius: 8px; font-weight: 600; cursor: pointer;
}
button.ghost {
  background: transparent; color: var(--brand); border: 1px solid var(--brand);
  padding: 7px 12px; border-radius: 8px; font-weight: 600; cursor: pointer;
}

.group-header {
  font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px;
  color: var(--muted); margin: 14px 4px 6px;
}

.trip-row {
  background: var(--card);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 6px;
  display: flex; align-items: center; gap: 10px;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}
.trip-row.future { opacity: 0.85; border-left: 3px solid var(--brand); }
.trip-row.overlap-warning { border-left: 3px solid var(--bad); }
.trip-row.current { border-left: 3px solid var(--good); }
.trip-main { flex: 1; min-width: 0; }
.trip-country { font-weight: 600; font-size: 15px; }
.trip-dates { color: var(--muted); font-size: 13px; margin-top: 2px; }
.trip-note { color: var(--muted); font-size: 12px; margin-top: 2px; font-style: italic; }
.trip-progress { font-size: 12px; color: var(--good); font-weight: 600; margin-top: 2px; }
.trip-days {
  background: var(--brand-light); color: var(--brand);
  padding: 4px 10px; border-radius: 999px;
  font-size: 13px; font-weight: 600; flex-shrink: 0;
}
.empty { text-align: center; color: var(--muted); padding: 30px 10px; }

/* Data card */
.data-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.data-actions button {
  background: var(--chip-bg); color: var(--text); border: 1px solid var(--border);
  padding: 8px 12px; border-radius: 8px; cursor: pointer; font-weight: 600; font-size: 14px;
}
.data-note { color: var(--muted); font-size: 12px; margin: 10px 0 0; }

/* Dialog */
dialog {
  border: none;
  border-radius: 14px;
  padding: 0;
  width: min(460px, 92vw);
  background: var(--card);
  color: var(--text);
  box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}
dialog::backdrop { background: rgba(0,0,0,0.4); }
#tripForm, #pasteForm { padding: 20px; display: flex; flex-direction: column; gap: 10px; }
#tripForm h2, #pasteForm h2 { margin: 0 0 6px; }
#tripForm label, #pasteForm label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
#tripForm input, #tripForm select, #pasteForm textarea {
  font-size: 16px; padding: 10px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--card); color: var(--text);
}
#pasteForm textarea { font-family: ui-monospace, "Cascadia Code", Menlo, monospace; font-size: 13px; }
.dialog-actions { display: flex; gap: 8px; margin-top: 10px; align-items: center; flex-wrap: wrap; }
.dialog-actions .spacer { flex: 1; }
.dialog-actions button { padding: 9px 14px; border-radius: 8px; border: 1px solid var(--border); background: var(--card); color: var(--text); cursor: pointer; font-weight: 600; }
.dialog-actions button.primary { background: var(--brand); color: #fff; border-color: var(--brand); }
.dialog-actions button.danger  { background: var(--bad);   color: #fff; border-color: var(--bad);   }

.error   { color: var(--bad);  font-size: 13px; margin: 0; }
.warning { color: var(--warn); font-size: 13px; margin: 0; background: #fff8dd; padding: 8px 10px; border-radius: 6px; }
@media (prefers-color-scheme: dark) {
  .warning { background: #3a2e0a; }
}
.duration { font-size: 13px; color: var(--brand); font-weight: 600; }
.stamp-info { background: var(--chip-bg); padding: 8px 10px; border-radius: 6px; font-size: 12px; color: var(--text); line-height: 1.5; }
.hint-text { font-size: 12px; color: var(--muted); margin: 0; }
.hint-text code { font-family: ui-monospace, monospace; }

.country-row { display: flex; gap: 6px; align-items: stretch; }
.country-row select { flex: 1; }
.pin-btn {
  background: var(--card); border: 1px solid var(--border); border-radius: 8px;
  padding: 0 12px; font-size: 18px; cursor: pointer; color: #999;
}
.pin-btn.pinned { background: #fff9db; border-color: #f5b301; color: #f5b301; }
@media (prefers-color-scheme: dark) {
  .pin-btn.pinned { background: #3a2e0a; }
}