:root {
    --primary-color: #0d6efd;
    --primary-dark: #0a58ca;
    --secondary-color: #f8f9fa;
    --text-color: #333;
    --font-family: 'Inter', sans-serif;
}

body {
    font-family: var(--font-family);
    color: var(--text-color);
    overflow-x: hidden;
}

/* Navbar */
.navbar {
    transition: all 0.3s ease;
    padding: 15px 0;
}

.navbar.scrolled {
    padding: 10px 0;
    background-color: rgba(13, 110, 253, 0.95) !important;
    backdrop-filter: blur(10px);
}

.nav-link {
    font-weight: 500;
    position: relative;
    padding: 0.5rem 1rem !important;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: #fff;
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

/* Hero Section */
.hero-section {
    height: 100vh;
    min-height: 600px;
    background: url('https://images.unsplash.com/photo-1541339907198-e08756dedf3f?q=80&w=2070&auto=format&fit=crop') no-repeat center center;
    background-size: cover;
    position: relative;
    margin-top: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(13, 110, 253, 0.85) 0%, rgba(0, 0, 0, 0.6) 100%);
    z-index: 1;
}

.hero-section .container {
    position: relative;
    z-index: 2;
}

/* Program Cards */
.program-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.program-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 1rem 3rem rgba(0,0,0,.1) !important;
}

.icon-box {
    transition: all 0.3s ease;
}

.program-card:hover .icon-box {
    background-color: var(--primary-color) !important;
    color: white !important;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(45deg, var(--primary-color), #0dcaf0);
}

/* Footer Links */
.footer-link {
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: white !important;
    padding-left: 5px;
}

.social-btn {
    width: 35px;
    height: 35px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-btn:hover {
    background-color: white;
    color: var(--primary-color);
    transform: translateY(-3px);
}

/* Animations */
.animate-fade-in {
    animation: fadeIn 1s ease-out forwards;
}

.animate-fade-in-up {
    animation: fadeInUp 1s ease-out forwards;
    opacity: 0;
}

.delay-1 {
    animation-delay: 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from { 
        opacity: 0;
        transform: translateY(30px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

/* Custom Footer */
.footer-custom {
    background-color: #002147; /* Dark Navy Blue */
    color: #fff;
}