:root {
    --navy: #1A365D;
    --gold: #C5A059;
    --green: #48BB78;
    --light: #f8f9fa;
}

body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }

.navbar { background-color: var(--navy) !important; border-bottom: 3px solid var(--gold); }
.btn-primary { background-color: var(--navy); border-color: var(--gold); }
.btn-primary:hover { background-color: var(--gold); color: var(--navy); }

.hero-section {
    background: linear-gradient(rgba(26, 54, 93, 0.8), rgba(26, 54, 93, 0.8)), url('../images/kathmandu-bg.jpg');
    background-size: cover;
    color: white;
    padding: 100px 0;
}

.exchange-card { border-left: 5px solid var(--green); transition: 0.3s; }
.exchange-card:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.1); }