/* ── Global page styles ── */
#app { min-height: 100vh; }

/* Navbar */
.navbar {
  position: sticky; top: 0; z-index: 100;
  height: var(--nav-h);
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center;
}
@media (prefers-color-scheme: dark) {
  .navbar { background: rgba(26,29,39,0.88); }
}
.navbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 20px;
}
.navbar-logo {
  font-size: 18px; font-weight: 700; color: var(--primary);
  display: flex; align-items: center; gap: 7px; text-decoration: none;
}
.navbar-links { display: flex; align-items: center; gap: 28px; }
.navbar-links a {
  font-size: 14px; color: var(--text-2); text-decoration: none;
  transition: color 0.18s;
}
.navbar-links a:hover, .navbar-links a.active { color: var(--primary); }
.navbar-links a.active { font-weight: 500; }

/* Hero */
.hero {
  background: linear-gradient(135deg, #0c1a3a 0%, #1a3460 55%, #0f5ea8 100%);
  padding: 72px 20px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero-bg-circle {
  position: absolute; border-radius: 50%;
  background: rgba(255,255,255,0.04);
  pointer-events: none;
}
.hero h1 { font-size: clamp(28px, 5vw, 48px); color: #fff; font-weight: 700; margin-bottom: 12px; }
.hero p  { font-size: 17px; color: rgba(255,255,255,0.65); margin-bottom: 36px; max-width: 520px; margin-left: auto; margin-right: auto; }

/* Search box (on hero) */
.search-box {
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: 20px 24px;
  max-width: 780px; margin: 0 auto;
  box-shadow: var(--shadow-lg);
}
.search-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 150px 130px auto;
  gap: 12px; align-items: end;
}
@media (max-width: 820px) {
  .search-grid { grid-template-columns: 1fr 1fr; }
  .search-grid .search-submit { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
  .search-grid { grid-template-columns: 1fr; }
}
.search-submit .btn { width: 100%; justify-content: center; padding: 11px 24px; }

/* Results page */
.results-layout {
  display: grid; grid-template-columns: 260px 1fr; gap: 24px;
  align-items: start; padding: 32px 0;
}
@media (max-width: 860px) {
  .results-layout { grid-template-columns: 1fr; }
  .filter-sidebar { display: none; }
}

/* Flight card */
.flight-card {
  padding: 18px 20px;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: 16px; align-items: center;
  margin-bottom: 12px; cursor: pointer;
  transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s;
}
.flight-card:hover { border-color: var(--primary); }
.airline-logo-box {
  width: 44px; height: 44px; border-radius: var(--radius-md);
  background: var(--primary-light); display: flex; align-items: center;
  justify-content: center; font-size: 11px; font-weight: 700; color: var(--primary);
  flex-shrink: 0;
}
.route-timeline { display: flex; align-items: center; gap: 12px; }
.route-time { font-size: 18px; font-weight: 700; color: var(--text-1); }
.route-line { flex: 1; position: relative; }
.route-line hr { border: none; border-top: 1.5px solid var(--border-strong); }
.route-plane {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-size: 13px; background: var(--surface);
  padding: 0 4px;
}
.route-meta { font-size: 12px; color: var(--text-3); text-align: center; }
.price-col { text-align: right; }
.price-amount { font-size: 22px; font-weight: 700; color: var(--primary); }
.price-cabin  { font-size: 11px; color: var(--text-3); }

/* Filter sidebar */
.filter-sidebar { padding: 20px; position: sticky; top: calc(var(--nav-h) + 16px); }
.filter-section { margin-bottom: 24px; }
.filter-section h4 { font-size: 13px; font-weight: 600; margin-bottom: 12px; }
.filter-check { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; cursor: pointer; }
.filter-check input { accent-color: var(--primary); width: 15px; height: 15px; }
.filter-check label { font-size: 13px; color: var(--text-2); cursor: pointer; }
.price-slider { width: 100%; accent-color: var(--primary); }

/* Booking steps */
.steps-bar {
  display: flex; align-items: center;
  gap: 0; margin-bottom: 32px;
}
.step-item { display: flex; align-items: center; flex: 1; }
.step-circle {
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 600; flex-shrink: 0;
  border: 2px solid var(--border-strong);
  background: var(--surface); color: var(--text-3);
  transition: all 0.3s;
}
.step-circle.active { border-color: var(--primary); background: var(--primary); color: #fff; }
.step-circle.done   { border-color: var(--accent); background: var(--accent); color: #fff; }
.step-label { font-size: 12px; color: var(--text-3); margin-left: 8px; white-space: nowrap; }
.step-label.active { color: var(--primary); font-weight: 500; }
.step-connector { flex: 1; height: 2px; background: var(--border); margin: 0 8px; }
.step-connector.done { background: var(--accent); }

/* Booking form */
.booking-form { max-width: 620px; }
.booking-section { margin-bottom: 28px; }
.booking-section h3 { font-size: 15px; font-weight: 600; margin-bottom: 16px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }

/* Confirmation */
.confirm-hero { text-align: center; padding: 48px 20px 32px; }
.confirm-icon {
  width: 72px; height: 72px; border-radius: 50%;
  background: #d4f4eb; display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px; font-size: 32px;
}
.confirm-ref { font-family: var(--mono); font-size: 22px; font-weight: 700; color: var(--primary); letter-spacing: 0.1em; }
.itinerary-card { padding: 20px 24px; }
.itin-row { display: flex; align-items: center; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--border); }
.itin-row:last-child { border-bottom: none; }
.itin-label { font-size: 13px; color: var(--text-3); }
.itin-value { font-size: 14px; font-weight: 500; color: var(--text-1); }

/* Mobile menu */
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 6px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--text-1); border-radius: 2px; transition: all 0.25s; }
@media (max-width: 640px) {
  .hamburger { display: flex; }
  .navbar-links { display: none; position: absolute; top: var(--nav-h); left: 0; right: 0; background: var(--surface); border-bottom: 1px solid var(--border); padding: 16px 20px; flex-direction: column; align-items: flex-start; gap: 16px; }
  .navbar-links.open { display: flex; }
}

/* Footer */
.footer { background: var(--surface); border-top: 1px solid var(--border); padding: 28px 20px; text-align: center; }
.footer p { font-size: 13px; color: var(--text-3); }