/* ---------- Header ---------- */
.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 20;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 24px;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}

.logo span {
  color: var(--color-text-muted);
  font-weight: 400;
}

.main-nav {
  display: flex;
  gap: 24px;
  flex: 1;
}

.main-nav a {
  font-weight: 500;
  color: var(--color-text);
  padding: 8px 0;
}

.main-nav a:hover {
  color: var(--color-primary);
}

.cart-link {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
  white-space: nowrap;
}

.auth-area {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.9rem;
  white-space: nowrap;
}

.auth-area a {
  font-weight: 600;
  color: var(--color-primary);
}

.auth-hello {
  color: var(--color-text-muted);
}

.cart-badge {
  display: none;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: 999px;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 24px 0;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-accent {
  background: var(--color-accent);
  color: #fff;
}

.btn-accent:hover:not(:disabled) {
  background: var(--color-accent-dark);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-dark);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-outline:hover {
  background: var(--color-bg-alt);
}

.btn-icon {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-text-muted);
  font-size: 1rem;
  padding: 8px;
  border-radius: var(--radius-sm);
}

.btn-icon:hover {
  background: var(--color-bg-alt);
  color: var(--color-danger);
}

/* ---------- Hero / Search box ---------- */
.hero {
  background: linear-gradient(180deg, var(--color-bg-alt), var(--color-bg));
  padding: 48px 0 64px;
  text-align: center;
}

.search-box {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 20px;
  max-width: 900px;
  margin: 24px auto 0;
  text-align: left;
}

.trip-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.trip-tab {
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  padding: 8px 18px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
  color: var(--color-text-muted);
}

.trip-tab.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.search-fields {
  display: grid;
  grid-template-columns: repeat(4, 1fr) auto;
  gap: 12px;
  align-items: end;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.field input,
.field select {
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #fff;
  font-family: inherit;
  font-size: inherit;
}

@media (max-width: 900px) {
  .search-fields {
    grid-template-columns: 1fr 1fr;
  }
}

/* ---------- Weather widget ---------- */
.weather-box {
  display: flex;
  align-items: end;
  gap: 12px;
  margin-top: 16px;
  max-width: 460px;
}

.weather-box .field {
  flex: 1;
}

.weather-result {
  margin-top: 14px;
  font-size: 0.95rem;
}

.weather-result.is-error {
  color: var(--color-danger);
}

.weather-result.is-loading {
  color: var(--color-text-muted);
}

.forecast-list {
  display: flex;
  gap: 12px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.forecast-day {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  min-width: 84px;
}

.forecast-date {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.forecast-icon {
  width: 44px;
  height: 44px;
}

.forecast-temp {
  font-weight: 700;
}

/* ---------- Tour cards ---------- */
.tour-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 20px;
}

.tour-card {
  display: block;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.tour-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
}

.tour-card img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.tour-card-body {
  padding: 14px 16px;
}

.tour-card-body h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.tour-card-operator {
  font-size: 0.85rem;
  margin-bottom: 10px;
}

.tour-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.badge {
  background: var(--color-bg-alt);
  color: var(--color-text-muted);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.price {
  color: var(--color-secondary);
  font-weight: 700;
}

@media (max-width: 1024px) {
  .tour-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .tour-grid { grid-template-columns: 1fr; }
}

/* ---------- Airline grid ---------- */
.airline-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 20px;
}

.airline-logo {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  filter: grayscale(40%);
  opacity: 0.85;
  transition: all 0.15s ease;
}

.airline-logo:hover {
  filter: none;
  opacity: 1;
  box-shadow: var(--shadow-card);
}

/* ---------- Filters layout (Flights / Tours) ---------- */
.filters-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 28px;
  padding: 32px 0;
  align-items: start;
}

.sidebar {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  position: sticky;
  top: 84px;
}

.filter-group {
  margin-bottom: 20px;
}

.filter-group h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

.filter-group select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.filter-check {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  font-size: 0.9rem;
  cursor: pointer;
}

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 8px;
}

.results-header h2 {
  margin: 0;
}

#search-summary, #result-count {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.list-stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.flight-row {
  display: flex;
  align-items: center;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.flight-row:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.flight-row-logo {
  width: 72px;
  height: auto;
  flex-shrink: 0;
}

.flight-row-info {
  flex: 1;
  min-width: 0;
}

.flight-row-airline {
  font-weight: 700;
}

.flight-row-route {
  margin: 2px 0;
}

.flight-row-meta {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.flight-row-price {
  text-align: right;
  flex-shrink: 0;
}

.flight-row-price .price {
  font-size: 1.1rem;
  display: block;
  margin-bottom: 6px;
}

@media (max-width: 900px) {
  .filters-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
}

/* ---------- Detail pages ---------- */
.detail-page {
  padding: 32px 0 64px;
}

.detail-header {
  display: flex;
  gap: 20px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
  margin-bottom: 28px;
}

.detail-header img {
  width: 100px;
  flex-shrink: 0;
}

.tour-detail-image {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
}

.fare-table {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.fare-card {
  background: #fff;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
}

.fare-card h3 {
  margin-bottom: 6px;
}

.fare-card .price {
  font-size: 1.6rem;
  display: block;
  margin: 12px 0 20px;
}

.fare-card ul {
  text-align: left;
  margin-bottom: 20px;
}

.fare-card li {
  padding: 6px 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  border-bottom: 1px dashed var(--color-border);
}

.fare-card.business {
  border-color: var(--color-accent);
}

@media (max-width: 700px) {
  .fare-table { grid-template-columns: 1fr; }
  .detail-header { flex-direction: column; text-align: center; }
}

/* ---------- Itinerary ---------- */
.itinerary-day {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--color-border);
}

.itinerary-day:first-child {
  border-top: none;
}

.itinerary-day-number {
  flex-shrink: 0;
  width: 84px;
  font-weight: 700;
  color: var(--color-primary);
}

/* ---------- Cart ---------- */
.cart-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 28px;
  padding: 32px 0 64px;
  align-items: start;
}

.cart-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
}

.cart-item-title {
  font-weight: 700;
}

.cart-item-meta {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  margin-top: 2px;
}

.cart-item-price {
  font-weight: 700;
  color: var(--color-secondary);
  white-space: nowrap;
}

.cart-summary {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: sticky;
  top: 84px;
}

.cart-total-row {
  display: flex;
  justify-content: space-between;
  font-size: 1.1rem;
  font-weight: 700;
  margin: 16px 0 20px;
}

.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.field-error {
  color: var(--color-danger);
  font-size: 0.8rem;
  margin-top: 4px;
  display: none;
}

@media (max-width: 900px) {
  .cart-layout { grid-template-columns: 1fr; }
  .cart-summary { position: static; }
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translate(-50%, 20px);
  background: var(--color-text);
  color: #fff;
  padding: 14px 22px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lift);
  opacity: 0;
  pointer-events: none;
  transition: all 0.25s ease;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 50;
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

.toast a {
  color: var(--color-accent);
  font-weight: 700;
}

/* ---------- Auth pages ---------- */
.auth-page {
  min-height: calc(100vh - 64px - 70px);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-alt);
  padding: 48px 20px;
}

.auth-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 32px;
  width: 100%;
  max-width: 400px;
}

.auth-card h1 {
  text-align: center;
  font-size: 1.4rem;
}

.auth-card .subtitle {
  text-align: center;
  margin-bottom: 24px;
}

.auth-links {
  text-align: center;
  margin-top: 16px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.auth-links a {
  color: var(--color-primary);
  font-weight: 600;
}

.auth-error {
  background: #fdecec;
  color: var(--color-danger);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.85rem;
  margin-bottom: 16px;
  display: none;
}

.auth-error.show {
  display: block;
}

.auth-success {
  background: #e6f9f2;
  color: var(--color-secondary);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.85rem;
  margin-bottom: 16px;
  display: none;
}

.auth-success.show {
  display: block;
}

.demo-hint {
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 20px;
}

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 60;
  padding: 20px;
}

.modal-overlay.show {
  display: flex;
}

.modal-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px;
  max-width: 420px;
  text-align: center;
  box-shadow: var(--shadow-lift);
}

.modal-card .icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}