:root {
  --tg-bg-color: #071821;
  --tg-text-color: #f4fbfa;
  --tg-hint-color: #9db4b8;
  --tg-button-color: #5eead4;
  --tg-button-text-color: #071821;
  --tg-secondary-bg-color: #102833;
  --tg-destructive-text-color: #fb7185;
  --bg: var(--tg-bg-color, #071821);
  --card: var(--tg-secondary-bg-color, #102833);
  --line: #234454;
  --text: var(--tg-text-color, #f4fbfa);
  --muted: var(--tg-hint-color, #9db4b8);
  --mint: var(--tg-button-color, #5eead4);
  --sun: #f4c95f;
  --ok: #6ee7b7;
  --warn: #f4c95f;
  --bad: var(--tg-destructive-text-color, #fb7185);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
}
body {
  padding: 0 0 calc(24px + env(safe-area-inset-bottom));
  position: relative;
  overflow-x: hidden;
  background:
    radial-gradient(1200px 600px at 10% -10%, #0d2a36 0%, transparent 55%),
    radial-gradient(900px 500px at 110% 20%, #123844 0%, transparent 50%),
    var(--bg);
}

.sky {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 50;
  overflow: hidden;
}
.plane {
  position: absolute;
  left: 0;
  top: 0;
  width: 36px;
  height: 36px;
  color: #2AABEE;
  opacity: 0.7;
  will-change: transform;
  filter: drop-shadow(0 2px 8px rgba(42, 171, 238, 0.45));
  transition: opacity 0.4s ease;
}
.plane svg {
  display: block;
  width: 100%;
  height: 100%;
}

.app {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
  padding: 20px 16px 0;
}

.hero { margin-bottom: 16px; }
.brand {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}
.tagline {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}
.boot {
  margin: 8px 0 0;
  color: var(--mint);
  font-size: 0.85rem;
}

.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 16px;
}
.tab {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--muted);
  border-radius: 999px;
  padding: 12px 14px;
  font: inherit;
  font-weight: 700;
}
.tab.active {
  color: #062016;
  background: var(--mint);
  border-color: var(--mint);
}

.panel { display: none; }
.panel.active { display: block; }

.stack { display: grid; gap: 12px; }
.field {
  display: grid;
  gap: 6px;
  padding: 12px 14px;
  border-radius: 16px;
  background: var(--card);
  border: 1px solid var(--line);
}
.field span {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 700;
}
.field input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 1.1rem;
  font-weight: 700;
}
.hint {
  min-height: 1.1em;
  font-size: 0.85rem;
  color: var(--mint);
}

.btn {
  border: 0;
  border-radius: 14px;
  padding: 14px 16px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  display: inline-block;
}
.btn.primary {
  color: #062016;
  background: var(--mint);
}
.btn.ghost {
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--line);
}
.btn.full { width: 100%; margin-top: 12px; }
.btn:disabled { opacity: 0.55; }
.btn-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

.quote, .watch-card {
  margin-top: 14px;
  padding: 16px;
  border-radius: 16px;
  background: var(--card);
  border: 1px solid var(--line);
}
.quote h2, .watch-card h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}
.price-now {
  font-size: 1.7rem;
  font-weight: 800;
}
.meta { color: var(--muted); margin-top: 4px; font-size: 0.9rem; }
.band { margin-top: 14px; display: grid; gap: 8px; }
.band-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  background: #0b1f28;
  font-weight: 700;
}
.band-row.cheap { color: var(--ok); }
.band-row.typical { color: var(--warn); }
.band-row.expensive { color: var(--bad); }
.level { margin-top: 8px; font-weight: 800; }
.level.cheap { color: var(--ok); }
.level.normal { color: var(--warn); }
.level.expensive { color: var(--bad); }

.watch-form { margin-top: 14px; }
.watches { display: grid; gap: 10px; }
.watch-card .actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 12px;
}
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.9rem; }
.hidden { display: none !important; }

.low-threshold-warn {
  border: 1px solid rgba(244, 201, 95, 0.45);
  background: rgba(244, 201, 95, 0.08);
  border-radius: 14px;
  padding: 12px;
  display: grid;
  gap: 10px;
}
.low-threshold-warn .warn-title {
  margin: 0;
  color: var(--warn);
  font-weight: 700;
}

.flex-btn.active {
  color: #062016;
  background: var(--sun);
  border-color: var(--sun);
}

.trip-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.trip-btn {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--muted);
  border-radius: 14px;
  padding: 12px 10px;
  font: inherit;
  font-weight: 700;
}
.trip-btn.active {
  color: #062016;
  background: var(--sun);
  border-color: var(--sun);
}

.pax-block {
  padding: 12px 14px;
  border-radius: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  display: grid;
  gap: 10px;
}
.pax-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 700;
}
.pax-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-weight: 700;
}
.stepper {
  display: grid;
  grid-template-columns: 36px 28px 36px;
  align-items: center;
  gap: 4px;
}
.stepper button {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #0b1f28;
  color: var(--text);
  font: inherit;
  font-size: 1.2rem;
  font-weight: 800;
  line-height: 1;
}
.stepper strong {
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.pax-hint { margin: 0; }

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(18px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  background: var(--card);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 12px 16px;
  border-radius: 14px;
  max-width: min(92vw, 420px);
  z-index: 20;
}

.auth-gate {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  background: var(--bg);
}
.auth-gate.hidden { display: none; }
.auth-card {
  width: min(100%, 420px);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px 20px;
}
.auth-card h1 {
  margin: 12px 0 8px;
  font-size: 1.25rem;
  line-height: 1.3;
}
.auth-card .btn { margin-top: 16px; display: inline-flex; }
body.auth-locked .app,
body.auth-locked .sky { display: none !important; }

.share-modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.45);
}
.share-modal-card {
  width: min(100%, 420px);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
}
.share-modal-card .mono {
  word-break: break-all;
  margin: 12px 0 16px;
}