:root {
  --bg: #0e1117;
  --bg-raised: #161b24;
  --bg-card: #1b2230;
  --border: #2a3344;
  --text: #e6ebf4;
  --text-dim: #93a0b4;
  --accent: #4f8ef7;
  --accent-soft: rgba(79, 142, 247, 0.15);
  --link: #8ec6b6;
  --link-underline: rgba(142, 198, 182, 0.35);
  --green: #34c98e;
  --green-soft: rgba(52, 201, 142, 0.14);
  --amber: #f5b74e;
  --amber-soft: rgba(245, 183, 78, 0.14);
  --red: #f26d6d;
  --red-soft: rgba(242, 109, 109, 0.14);
  --radius: 12px;
  font-size: 15px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
}

/* ---------- layout ---------- */
.topbar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.7rem 1.25rem;
  background: var(--bg-raised);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 0.5rem; font-weight: 700; font-size: 1.1rem; }
.tabs { display: flex; gap: 0.25rem; flex-wrap: wrap; }
.tabs a {
  color: var(--text-dim);
  text-decoration: none;
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
  font-weight: 500;
}
.tabs a:hover { color: var(--text); background: var(--bg-card); }
.tabs a.active { color: var(--accent); background: var(--accent-soft); }

.container { max-width: 1080px; margin: 0 auto; padding: 1.5rem 1.25rem 4rem; }

.footer {
  max-width: 1080px;
  margin: 0 auto;
  padding: 1rem 1.25rem 2rem;
  color: var(--text-dim);
  font-size: 0.8rem;
  border-top: 1px solid var(--border);
}
.footer-sep { margin: 0 0.5rem; }

h1 { font-size: 1.5rem; margin: 0 0 0.25rem; }
h2 { font-size: 1.15rem; margin: 1.75rem 0 0.75rem; }
.subtitle { color: var(--text-dim); margin: 0 0 1.25rem; }

/* ---------- links ---------- */
a {
  color: var(--link);
  text-decoration: underline;
  text-decoration-color: var(--link-underline);
  text-underline-offset: 2px;
}
a:hover { text-decoration-color: currentColor; }
a.btn, .tabs a { text-decoration: none; }

/* ---------- cards & panels ---------- */
.panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
}
.grid { display: grid; gap: 0.9rem; }
.grid-2 { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.grid-stats { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }

.stat { text-align: left; }
.stat .stat-value { font-size: 1.5rem; font-weight: 700; }
.stat .stat-label { color: var(--text-dim); font-size: 0.8rem; }

.cc {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.cc-band { height: 6px; }
.cc-body { padding: 0.85rem 1rem; flex: 1; display: flex; flex-direction: column; gap: 0.4rem; }
.cc-name { font-weight: 600; }
.cc-meta { color: var(--text-dim); font-size: 0.8rem; }
.cc-actions { margin-top: auto; padding-top: 0.6rem; }

/* ---------- badges & buttons ---------- */
.badge {
  display: inline-block;
  padding: 0.1rem 0.55rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  vertical-align: middle;
}
.badge-green { background: var(--green-soft); color: var(--green); }
.badge-amber { background: var(--amber-soft); color: var(--amber); }
.badge-red { background: var(--red-soft); color: var(--red); }
.badge-blue { background: var(--accent-soft); color: var(--accent); }
.badge-dim { background: var(--bg-raised); color: var(--text-dim); border: 1px solid var(--border); }

button, .btn {
  font: inherit;
  border: 1px solid var(--border);
  background: var(--bg-raised);
  color: var(--text);
  padding: 0.4rem 0.9rem;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 500;
}
button:hover, .btn:hover { border-color: var(--accent); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { filter: brightness(1.1); }
.btn-danger { color: var(--red); }
.btn-sm { padding: 0.2rem 0.6rem; font-size: 0.8rem; }

input[type="number"], input[type="text"], select {
  font: inherit;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 0.4rem 0.6rem;
}
input[type="number"] { width: 8.5rem; }
input:focus, select:focus { outline: none; border-color: var(--accent); }

/* ---------- tables ---------- */
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--text-dim); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.03em; }
tr:last-child td { border-bottom: none; }
.table-wrap { overflow-x: auto; }

/* ---------- benefit rows ---------- */
.benefit-row {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
}
.benefit-row:last-child { border-bottom: none; }
.benefit-row input[type="checkbox"] { width: 1.1rem; height: 1.1rem; margin-top: 0.2rem; accent-color: var(--green); cursor: pointer; }
.benefit-main { flex: 1; }
.benefit-name { font-weight: 500; }
.benefit-name.used { text-decoration: line-through; color: var(--text-dim); }
.benefit-notes { color: var(--text-dim); font-size: 0.82rem; }
.benefit-side { text-align: right; white-space: nowrap; }
.benefit-value { font-weight: 600; }
.benefit-deadline { font-size: 0.78rem; color: var(--text-dim); }
.benefit-deadline.soon { color: var(--amber); font-weight: 600; }
.benefit-deadline.urgent { color: var(--red); font-weight: 600; }

/* ---------- alerts ---------- */
.alert {
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  margin-bottom: 0.6rem;
}
.alert-amber { border-color: rgba(245,183,78,.4); background: var(--amber-soft); }
.alert-info { border-color: rgba(79,142,247,.4); background: var(--accent-soft); }

/* ---------- maximizer ---------- */
.maximizer-controls { display: flex; gap: 0.75rem; flex-wrap: wrap; align-items: center; margin-bottom: 1.25rem; }
.result-option { display: flex; flex-wrap: wrap; gap: 0.35rem 0.75rem; align-items: baseline; }
.mono { font-variant-numeric: tabular-nums; }

.tip-list { margin: 0.5rem 0 0; padding-left: 1.2rem; color: var(--text-dim); font-size: 0.88rem; }
.tip-list li { margin-bottom: 0.3rem; }

.empty {
  text-align: center;
  color: var(--text-dim);
  padding: 2.5rem 1rem;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

.balance-row { display: flex; align-items: center; gap: 0.75rem; padding: 0.45rem 0; }
.balance-row label { flex: 1; }
.balance-hint { color: var(--text-dim); font-size: 0.78rem; }

.changelog li { margin-bottom: 0.4rem; }
.changelog .date { color: var(--text-dim); font-size: 0.82rem; margin-right: 0.5rem; }

@media (max-width: 640px) {
  .topbar { gap: 0.5rem; }
  .benefit-side { text-align: left; }
}

/* ---------- trip planner ---------- */
.dest-search { position: relative; max-width: 560px; margin: 1rem 0; }
.dest-search input {
  width: 100%;
  padding: 0.85rem 1rem;
  font-size: 1.05rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
}
.dest-search input:focus { outline: 2px solid var(--accent); border-color: var(--accent); }
.suggestions {
  position: absolute;
  top: calc(100% + 4px);
  left: 0; right: 0;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  z-index: 20;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}
.suggestions:empty { display: none; }
.suggestion {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  width: 100%;
  padding: 0.65rem 1rem;
  background: none;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-size: 0.95rem;
  text-align: left;
  cursor: pointer;
}
.suggestion:last-child { border-bottom: none; }
.suggestion:hover, .suggestion:focus { background: var(--accent-soft); }
.suggestion-country { color: var(--text-dim); font-size: 0.85rem; }
.suggestion-empty { padding: 0.65rem 1rem; color: var(--text-dim); font-size: 0.9rem; }

.chip-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chip {
  padding: 0.45rem 0.9rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  font-size: 0.9rem;
  cursor: pointer;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }

.trip-controls { margin: 0.25rem 0 0.75rem; }
.trip-form { margin-bottom: 0.5rem; }
.trip-form input[type="month"],
.trip-form input[type="number"] {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 0.45rem 0.6rem;
}
.trip-form input[type="number"] { width: 5.5rem; }

.hotel-rec { margin-bottom: 0.9rem; }
.hotel-head { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; margin-bottom: 0.25rem; }
.rec-line { margin-top: 0.55rem; display: flex; flex-wrap: wrap; align-items: center; gap: 0.45rem; }

/* ---------- add-a-balance row ---------- */
.balance-add { gap: 0.5rem; }
.balance-add select, .balance-add input {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 0.45rem 0.6rem;
}
.balance-add select { flex: 1; min-width: 0; }
.balance-add input { width: 7rem; }

/* ---------- expiration hints & upgrade plays ---------- */
.expiry-hint { display: block; font-weight: 400; }
.upgrade-play { margin-bottom: 0.75rem; }
.upgrade-play .benefit-notes { margin-top: 0.35rem; }

/* ---------- storage notice banner ---------- */
.storage-notice {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 1.25rem;
  background: var(--bg-card, #16202c);
  border-top: 1px solid var(--border, #2a3a4d);
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.35);
}
.storage-notice[hidden] { display: none; }
.storage-notice-text { flex: 1; font-size: 0.9rem; line-height: 1.45; }
.storage-notice button { flex-shrink: 0; }
@media (max-width: 640px) {
  .storage-notice { flex-direction: column; align-items: stretch; text-align: left; }
}

/* ---------- legal pages ---------- */
.legal { max-width: 46rem; }
.legal h2 { margin-top: 1.5rem; }
.legal p { margin: 0.6rem 0; line-height: 1.6; }
.legal code { font-family: ui-monospace, monospace; font-size: 0.9em; }