:root { --blue: #0b5cff; --dark: #1a1a2e; --grey: #f4f6fb; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; color: var(--dark); background: #fff; }
a { text-decoration: none; }
button { font: inherit; cursor: pointer; }

.btn-primary, .btn-outline { padding: 10px 18px; border-radius: 6px; font-weight: 600; border: 1px solid var(--blue); }
.btn-primary { background: var(--blue); color: #fff; }
.btn-outline { background: #fff; color: var(--blue); }

.header { display: flex; justify-content: space-between; align-items: center; padding: 14px 5%; border-bottom: 1px solid #e5e8ef; position: sticky; top: 0; background: #fff; z-index: 10; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--dark); }
.logo span { color: var(--blue); }
.header nav { display: flex; align-items: center; gap: 20px; }
.header nav a { color: var(--dark); font-weight: 500; }

.hero { padding: 70px 5% 80px; text-align: center; color: #fff;
  background: linear-gradient(rgba(10,30,80,.65), rgba(10,30,80,.65)),
    url('https://images.unsplash.com/photo-1560518883-ce09059eeffa?auto=format&fit=crop&w=1600&q=60') center/cover; }
.hero h1 { font-size: 2.4rem; margin: 0 0 24px; }
.tabs { display: inline-flex; gap: 4px; margin-bottom: 14px; }
.tab { padding: 8px 28px; background: rgba(255,255,255,.25); color: #fff; border-radius: 6px 6px 0 0; }
.tab.active { background: #fff; color: var(--blue); font-weight: 700; }

.search { display: flex; flex-wrap: wrap; gap: 10px; max-width: 900px; margin: 0 auto; background: #fff; padding: 14px; border-radius: 8px; }
.search select, .search input { flex: 1 1 160px; padding: 12px; border: 1px solid #d5d9e3; border-radius: 6px; font: inherit; }

.section { padding: 50px 5%; }
.section.alt { background: var(--grey); }
.section h2 { margin: 0 0 24px; }
.empty { color: #666; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 22px; }
.card { border: 1px solid #e5e8ef; border-radius: 10px; overflow: hidden; background: #fff; transition: box-shadow .2s, transform .2s; }
.card:hover { box-shadow: 0 8px 22px rgba(0,0,0,.12); transform: translateY(-3px); }
.card img { width: 100%; height: 180px; object-fit: cover; display: block; }
.card-body { padding: 14px; }
.price { font-size: 1.2rem; font-weight: 800; color: var(--blue); }
.card h3 { margin: 6px 0; font-size: 1rem; }
.meta { color: #666; font-size: .85rem; margin: 0 0 12px; }

.city-row { display: flex; flex-wrap: wrap; gap: 14px; }
.city { padding: 14px 28px; background: #fff; border: 1px solid #d5d9e3; border-radius: 30px; color: var(--dark); font-weight: 600; }
.city:hover { background: var(--blue); color: #fff; }

.footer { text-align: center; padding: 24px; background: var(--dark); color: #aab; }

@media (max-width: 600px) {
  .header nav a { display: none; }
  .hero h1 { font-size: 1.7rem; }
}