:root {
    --primary-color: #0056b3;
    --secondary-color: #212529;
    --accent-color: #f8f9fa;
    --hero-overlay: rgba(0, 0, 0, 0.6);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #333;
    scroll-behavior: smooth;
}

/* Navigation */
.navbar {
    transition: all 0.3s ease;
    padding: 1rem 0;
}

.navbar-brand {
    font-size: 1.5rem;
    letter-spacing: 1px;
}

/* Hero Section */
.hero-section {
    min-height: 80vh;
    background: linear-gradient(var(--hero-overlay), var(--hero-overlay)), 
                url('https://images.unsplash.com/photo-1494412574643-ff11b0a5c1c3?auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.tracking-card {
    border-radius: 15px !important;
    transform: translateY(20px);
}

/* Heading Line */
.heading-line {
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    margin-top: 15px;
}

/* Service Cards */
.service-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-radius: 12px;
}

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

.service-icon {
    display: inline-block;
    padding: 15px;
    background-color: rgba(0, 86, 179, 0.05);
    border-radius: 10px;
}

/* About Section */
.about-img-wrapper img {
    border-radius: 20px;
}

/* Contact Form */
.form-control, .form-select {
    padding: 0.8rem 1rem;
    border-radius: 8px;
    border: 1px solid #dee2e6;
}

.form-control:focus {
    box-shadow: 0 0 0 0.25rem rgba(0, 86, 179, 0.1);
    border-color: var(--primary-color);
}

/* Footer */
.footer-links li {
    margin-bottom: 10px;
}

.footer-links a:hover {
    color: white !important;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-section {
        min-height: 60vh;
        padding-top: 100px;
        padding-bottom: 50px;
    }
    
    .display-3 {
        font-size: 2.5rem;
    }
}