:root {
    --primary-color: #005A9C;
    --secondary-color: #FDB813;
    --background-color: #F8F9FA;
    --surface-color: #FFFFFF;
    --text-color: #212529;
    --heading-font: 'Georgia', serif;
    --body-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

body {
    font-family: var(--body-font);
    color: var(--text-color);
    background-color: var(--background-color);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    font-weight: 700;
}

.navbar {
    transition: background-color 0.3s ease-in-out;
}

.navbar-brand {
    font-family: var(--heading-font);
    font-weight: bold;
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.9);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.hero {
    position: relative;
    height: 100vh;
    min-height: 500px;
    background: url('https://picsum.photos/seed/universityhero/1600/900') no-repeat center center;
    background-size: cover;
    color: white;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(0, 90, 156, 0.8), rgba(0, 90, 156, 0.6));
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.hero .display-4 {
    font-size: 3.5rem;
    font-weight: 900;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    padding: 0.75rem 1.5rem;
    border-radius: 0.25rem;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: #004170;
    border-color: #004170;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: var(--text-color);
    padding: 0.75rem 1.5rem;
    border-radius: 0.25rem;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background-color: #d99d0b;
    border-color: #d99d0b;
    transform: translateY(-2px);
}

.section {
    padding: 5rem 0;
}

.section-title {
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.card {
    border: none;
    border-radius: 0.5rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.testimonial-card {
    background-color: var(--surface-color);
}

.testimonial-card blockquote {
    font-style: italic;
}

.footer {
    background-color: #343a40;
    color: white;
    padding: 3rem 0;
}

.footer a {
    color: var(--secondary-color);
}

.footer a:hover {
    color: #fff;
    text-decoration: none;
}