:root {
    --primary-color: #003366; /* Deep Blue */
    --secondary-color: #FF8C00; /* Dark Orange Accent */
    --text-color: #333333;
    --light-bg: #f4f7f6;
    --white: #ffffff;
    --dark-overlay: rgba(0, 0, 0, 0.6);
    --transition: all 0.3s ease;
    --font-heading: 'Oswald', sans-serif;
    --font-body: 'Inter', sans-serif;
    --shadow: 0 4px 6px rgba(0,0,0,0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--white);
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 1px;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 12px 30px;
    font-weight: 600;
    text-transform: uppercase;
    border-radius: 4px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background-color: #e07b00;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid var(--white);
    color: var(--white);
}

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

/* Navbar */
.navbar {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
}

.logo span {
    color: var(--secondary-color);
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--secondary-color);
}

.nav-links .btn-primary {
    padding: 8px 20px;
    font-size: 0.8rem;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--white);
    margin-top: 60px; /* Navbar height */
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    z-index: 0;
    transform: translateX(-50%) translateY(-50%);
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0,51,102,0.7), rgba(0,51,102,0.5));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

/* Service Images */
.service-img {
    height: 200px;
    overflow: hidden;
    border-radius: 4px;
    margin-bottom: 20px;
}

.service-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

/* About Image */
.about-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

/* Portfolio Images */
.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero h1 span {
    color: var(--secondary-color);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

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

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--secondary-color);
    margin: 10px auto 0;
}

/* Services */
.services {
    background-color: var(--light-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

.service-card .icon {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.service-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

/* About */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.text-highlight {
    color: var(--secondary-color);
}

.about .lead {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.features-list {
    margin-top: 30px;
}

.features-list li {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.features-list i {
    color: var(--secondary-color);
    font-size: 1.5rem;
    margin-top: 5px;
}

.about-image {
    position: relative;
}

.image-placeholder {
    width: 100%;
    height: 400px;
    background-color: #ddd;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 5rem;
    color: #aaa;
    background-image: url('https://images.unsplash.com/photo-1541888946425-d81bb19240f5?ixlib=rb-4.0.3&auto=format&fit=crop&w=1000&q=80');
    background-size: cover;
    background-position: center;
}

/* Stats */
.stats {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 60px 0;
}

.stats-grid {
    display: flex;
    justify-content: space-around;
    text-align: center;
}

.stat-item .number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    font-family: var(--font-heading);
    color: var(--secondary-color);
}

.stat-item .label {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Portfolio */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.portfolio-item {
    height: 250px;
    background-color: #eee;
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    cursor: pointer;
}

/* Placeholder backgrounds for portfolio */
.portfolio-item:nth-child(1) { background-image: url('https://images.unsplash.com/photo-1581094794329-c8112a89af12?ixlib=rb-4.0.3&auto=format&fit=crop&w=600&q=80'); background-size: cover; }
.portfolio-item:nth-child(2) { background-image: url('https://images.unsplash.com/photo-1590069261209-f8e9b8642343?ixlib=rb-4.0.3&auto=format&fit=crop&w=600&q=80'); background-size: cover; }
.portfolio-item:nth-child(3) { background-image: url('https://images.unsplash.com/photo-1503387762-592deb58ef4e?ixlib=rb-4.0.3&auto=format&fit=crop&w=600&q=80'); background-size: cover; }
.portfolio-item:nth-child(4) { background-image: url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?ixlib=rb-4.0.3&auto=format&fit=crop&w=600&q=80'); background-size: cover; }

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 51, 102, 0.85);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--white);
    opacity: 0;
    transition: var(--transition);
}

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

.portfolio-overlay h4 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

/* Contact */
.contact {
    background-color: var(--light-bg);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    background: var(--white);
    padding: 50px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.contact-info h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
}

.info-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.info-item i {
    width: 50px;
    height: 50px;
    background-color: rgba(0, 51, 102, 0.1);
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.contact-form .form-group {
    margin-bottom: 20px;
}

.contact-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    border-color: var(--secondary-color);
    outline: none;
}

.full-width {
    width: 100%;
}

/* Footer */
footer {
    background-color: #1a1a1a;
    color: #aaa;
    padding: 40px 0;
    text-align: center;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--white);
    margin-bottom: 20px;
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--primary-color);
        flex-direction: column;
        padding: 20px 0;
        display: none;
    }

    .nav-links.active {
        display: flex;
    }

    .menu-toggle {
        display: block;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .about-grid, .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        flex-direction: column;
        gap: 30px;
    }
}