:root {
    --navy-blue: #002147;
    --gold: #D4AF37;
    --gold-hover: #B8860B;
    --light-gray: #f8f9fa;
    --dark-gray: #343a40;
}

body {
    font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: #333;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--navy-blue);
    font-weight: 700;
}

/* Navigation */
#main-nav {
    background-color: var(--navy-blue);
    transition: all 0.3s ease;
    padding: 15px 0;
}

#main-nav.scrolled {
    padding: 10px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.nav-link {
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
    margin: 0 10px;
}

.nav-link:hover, .nav-link.active {
    color: var(--gold) !important;
}

/* Buttons */
.btn-gold {
    background-color: var(--gold);
    color: #fff;
    border: none;
    font-weight: 600;
    padding: 10px 25px;
    transition: all 0.3s ease;
}

.btn-gold:hover {
    background-color: var(--gold-hover);
    color: #fff;
    transform: translateY(-2px);
}

/* Hero Section */
.hero-section {
    position: relative;
    padding: 150px 0;
    background: linear-gradient(rgba(0, 33, 71, 0.8), rgba(0, 33, 71, 0.8)), url('../images/hero_bg.jpg');
    background-size: cover;
    background-position: center;
    color: #fff;
}

/* Sections */
section {
    padding: 80px 0;
}

.section-title {
    position: relative;
    margin-bottom: 50px;
    text-align: center;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--gold);
}

/* Cards */
.card {
    border: none;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.card-icon {
    font-size: 2.5rem;
    color: var(--gold);
    margin-bottom: 20px;
}

/* Footer */
.footer {
    background-color: #00152e !important;
    color: #ffffff !important;
}

.footer h5 {
    color: var(--gold) !important;
}

.footer .text-muted {
    color: #cccccc !important;
}

.footer a.text-muted:hover {
    color: var(--gold) !important;
}

.filter-white {
    filter: brightness(0) invert(1);
}

.text-gold {
    color: var(--gold) !important;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: none;
    z-index: 99;
}

/* Responsive */
@media (max-width: 991px) {
    .hero-section {
        padding: 100px 0;
        text-align: center;
    }
}