:root {
    --primary-color: #003366; /* Tech Blue */
    --secondary-color: #6c757d; /* Grey */
    --accent-color: #d4af37; /* Light Gold */
    --bg-light: #f8f9fa;
    --text-dark: #333333;
    --text-muted: #666666;
}

body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
}

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

.bg-gold {
    background-color: var(--accent-color) !important;
}

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

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

.bg-light-blue {
    background-color: #e3f2fd;
}

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

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.divider {
    width: 60px;
    height: 3px;
    margin: 10px auto;
}

/* Navbar */
.navbar {
    transition: all 0.3s ease;
    padding: 1rem 0;
}

.navbar.scrolled {
    background-color: rgba(0, 51, 102, 0.95) !important; /* Dark Blue with opacity */
    padding: 0.5rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-link {
    font-weight: 500;
    color: rgba(255,255,255,0.8) !important;
    position: relative;
    margin: 0 5px;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--accent-color);
    transition: width 0.3s;
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(rgba(0, 51, 102, 0.7), rgba(0, 51, 102, 0.8)), url('../img/2.2.jpg'); /* Use platform img as bg placeholder if no specific hero img */
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    height: 100vh;
    min-height: 600px;
    color: white;
}

.btn-gold {
    background-color: var(--accent-color);
    color: white;
    border: none;
    transition: all 0.3s ease;
}

.btn-gold:hover {
    background-color: #b3922b;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(212, 175, 55, 0.4);
}

/* Cards */
.card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1) !important;
}

.card-img-top-wrapper {
    overflow: hidden;
    height: 250px; /* Fixed height for product cards */
}

.card-img-top {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.card:hover .card-img-top {
    transform: scale(1.1);
}

/* Gallery */
.gallery-item {
    position: relative;
    display: block;
    overflow: hidden;
    border-radius: 8px;
    cursor: pointer;
}

.gallery-item img {
    transition: transform 0.5s ease;
    width: 100%;
    height: 200px; /* Fixed height for gallery thumbnails */
    object-fit: cover;
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 51, 102, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

/* Scroll to Top Button */
#scrollTopBtn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 99;
    display: none;
    width: 50px;
    height: 50px;
    border: none;
    outline: none;
    cursor: pointer;
    font-size: 20px;
    color: white;
}

#scrollTopBtn:hover {
    background-color: #b3922b;
}

/* Modal Image */
.modal-body img {
    max-height: 80vh;
    width: auto;
    margin: 0 auto;
    display: block;
}

/* Responsive */
@media (max-width: 768px) {
    .section-padding {
        padding: 50px 0;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .hero-section h1 {
        font-size: 2.5rem;
    }
}