/* Custom styles for Vietnam Headlines */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700&family=Open+Sans:wght@400;600&display=swap');

:root {
    --primary-color: #0056b3; /* vnisp brand color estimate */
    --secondary-color: #f8f9fa;
    --accent-color: #ffc107;
    --text-dark: #212529;
    --text-light: #6c757d;
}

body {
    font-family: 'Open Sans', sans-serif;
    color: var(--text-dark);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: #004494;
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.nav-link {
    position: relative;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.service-card {
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

/* Mobile optimizations */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    .section-padding {
        padding-top: 3rem;
        padding-bottom: 3rem;
    }
}