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

body {
    font-family: 'Open Sans', sans-serif;
    color: #333;
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    color: var(--navy-blue);
}

.navbar {
    background-color: var(--navy-blue);
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.nav-link {
    color: var(--white) !important;
    font-weight: 600;
    margin: 0 10px;
    transition: color 0.3s;
}

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

.dropdown-menu {
    background-color: var(--navy-blue);
    border: none;
}

.dropdown-item {
    color: var(--white);
    padding: 10px 20px;
}

.dropdown-item:hover {
    background-color: var(--gold);
    color: var(--navy-blue);
}

.btn-gold {
    background-color: var(--gold);
    color: var(--white);
    font-weight: 600;
    border: none;
    padding: 10px 25px;
    transition: background 0.3s;
}

.btn-gold:hover {
    background-color: var(--gold-hover);
    color: var(--white);
}

.hero-section {
    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: var(--white);
    padding: 100px 0;
}

.section-padding {
    padding: 80px 0;
}

.bg-light {
    background-color: var(--light-gray) !important;
}

.card {
    border: none;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s;
}

.card:hover {
    transform: translateY(-10px);
}

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

footer {
    background-color: #00152e !important;
}

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

#backToTop {
    z-index: 1000;
}

/* Responsive */
@media (max-width: 991px) {
    .navbar-collapse {
        background-color: var(--navy-blue);
        padding: 20px;
        margin-top: 10px;
    }
}