* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Inter', sans-serif; }
body { background-color: #f8fafc; color: #1e293b; line-height: 1.5; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Header */
.navbar { background: #ffffff; border-bottom: 1px solid #e2e8f0; position: sticky; top: 0; z-index: 100; }
.nav-container { display: flex; justify-content: space-between; align-items: center; height: 64px; }
.brand-logo { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 1.125rem; color: #0f172a; text-decoration: none; }
.nav-links { display: flex; gap: 20px; }
.nav-links a { text-decoration: none; color: #64748b; font-size: 0.95rem; font-weight: 500; }
.nav-links a:hover, .nav-links a.active { color: #2563eb; }

.btn-primary { background-color: #059669; color: white; padding: 8px 16px; border-radius: 6px; text-decoration: none; font-size: 0.9rem; font-weight: 600; transition: background-color 0.2s; }
.btn-primary:hover { background-color: #047857; }

/* Hero */
.hero { background: #ffffff; padding: 60px 0; border-bottom: 1px solid #e2e8f0; text-align: center; }
.hero h1 { font-size: 2.25rem; font-weight: 700; color: #0f172a; margin-bottom: 10px; }
.hero p { color: #64748b; margin-bottom: 30px; }
.search-box { max-width: 600px; margin: 0 auto; position: relative; }
.search-box input { width: 100%; padding: 14px 20px; border-radius: 8px; border: 1px solid #cbd5e1; font-size: 1rem; outline: none; box-shadow: 0 2px 4px rgba(0,0,0,0.02); }
.search-box input:focus { border-color: #2563eb; box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.search-dropdown { position: absolute; top: 100%; left: 0; right: 0; background: white; border: 1px solid #e2e8f0; border-radius: 8px; margin-top: 4px; box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1); max-height: 300px; overflow-y: auto; display: none; z-index: 10; text-align: left; }
.search-item { padding: 10px 16px; border-bottom: 1px solid #f1f5f9; cursor: pointer; }
.search-item:hover { background-color: #f8fafc; }

.quick-tags { margin-top: 15px; font-size: 0.85rem; color: #94a3b8; }
.quick-tags button { background: none; border: none; color: #2563eb; cursor: pointer; font-weight: 500; margin: 0 4px; }

/* Grids & Cards */
.section { padding: 40px 0; }
.section h2 { font-size: 1.5rem; margin-bottom: 20px; color: #0f172a; }
.grid { display: grid; gap: 20px; }
.grid-regions { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.grid-airports { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.grid-news { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

.card { background: white; border: 1px solid #e2e8f0; border-radius: 8px; padding: 20px; transition: transform 0.2s, box-shadow 0.2s; }
.card:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.05); }
.region-card { text-align: center; cursor: pointer; background: #f8fafc; }
.airport-card h3 { font-size: 1.1rem; color: #1e293b; display: flex; justify-content: space-between; align-items: center; }
.iata-badge { background: #dbeafe; color: #1e40af; font-size: 0.8rem; padding: 2px 6px; border-radius: 4px; }
.airport-card p { color: #64748b; font-size: 0.875rem; margin-top: 6px; }

.news-card h3 { font-size: 1rem; color: #0f172a; margin-bottom: 8px; }
.news-card p { color: #64748b; font-size: 0.875rem; }
.news-card .date { font-size: 0.75rem; color: #94a3b8; margin-top: 12px; }

/* Footer */
footer { background: white; border-top: 1px solid #e2e8f0; padding: 24px 0; margin-top: 40px; }
.footer-container { display: flex; justify-content: space-between; align-items: center; font-size: 0.875rem; color: #64748b; }
.footer-links { display: flex; gap: 16px; }
.footer-links a { color: #64748b; text-decoration: none; }
.footer-links a:hover { color: #2563eb; }