:root {
    --primary-color: #003366;
    /* Deep Corporate/Educational Blue */
    --primary-light: #e6f0fa;
    --secondary-color: #cca43b;
    /* Gold/Accent */
    --text-dark: #2c3e50;
    --text-muted: #6c757d;
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Outfit', sans-serif;
}

body,
html {
    width: 100%;
    font-family: var(--font-body);
    scroll-behavior: smooth;
    overflow-x: hidden;
    /* Prevent horizontal scroll from AOS animations */
}

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

/* Navbar */
#mainNav {
    box-shadow: none;
    background-color: transparent;
    transition: background-color 0.3s ease-in-out;
    padding-top: 1rem;
    padding-bottom: 1rem;
}

#mainNav.navbar-scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

#mainNav .navbar-brand {
    color: white;
}

#mainNav.navbar-scrolled .navbar-brand {
    color: var(--primary-color);
}

#mainNav .nav-link {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    letter-spacing: 0.5px;
    transition: color 0.2s;
}

#mainNav.navbar-scrolled .nav-link {
    color: var(--text-dark);
}

#mainNav .nav-link:hover {
    color: var(--secondary-color);
}

#mainNav.navbar-scrolled .nav-link:hover {
    color: var(--primary-color);
}

#mainNav .btn-primary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: var(--primary-color);
    font-weight: 600;
}

#mainNav.navbar-scrolled .btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.brand-text {
    letter-spacing: 1.5px;
    font-family: var(--font-heading);
}

.brand-subtext {
    font-size: 0.75rem;
    letter-spacing: 2px;
    opacity: 0.9;
}

/* Hero Section */
header.masthead {
    padding-top: 10rem;
    padding-bottom: calc(10rem - 4.5rem);
    background: linear-gradient(to bottom, rgba(0, 51, 102, 0.5) 0%, rgba(0, 51, 102, 0.5) 100%), url('../assets/img/hero-bg.jpg');
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: scroll;
    background-size: cover;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (min-width: 992px) {
    header.masthead {
        background-attachment: fixed;
    }
}

.divider {
    max-width: 3.25rem;
    border-width: 0.2rem;
    border-color: var(--secondary-color);
    margin: 1.5rem auto;
    opacity: 1;
}

.text-white-75 {
    color: rgba(255, 255, 255, 0.85);
}

.btn-xl {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: #002244;
    border-color: #001f3f;
}

/* Sections */
.page-section {
    padding: 6rem 0;
}

.section-heading {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.subheading {
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
    font-size: 0.9rem;
}

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

.hover-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, .15) !important;
}

.card-title {
    color: var(--primary-color);
}

/* Courses */
.bg-primary {
    background-color: var(--primary-color) !important;
}

.bg-primary-light {
    background-color: var(--primary-light);
}

.course-badge {
    position: relative;
    overflow: hidden;
}

/* Contact */
.contact-item .icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: var(--primary-light);
    margin-bottom: 15px;
}

.map-container iframe {
    width: 100%;
    min-height: 400px;
}

/* Footer */
footer {
    color: rgba(255, 255, 255, 0.5);
}