:root {
    --primary-color: #001f3f; /* Deep Navy Blue */
    --secondary-color: #f39c12; /* Orange */
    --light-gray: #f4f4f4;
    --dark-gray: #333;
    --white-color: #fff;
}

/* General Styling */
html {
    scroll-behavior: smooth;
}
body {
    font-family: 'Montserrat', sans-serif;
    margin: 0;
    color: var(--dark-gray);
    line-height: 1.7;
}

.container {
    max-width: 1100px;
    margin: auto;
    padding: 0 2rem;
}

h1, h2, h3, h4 {
    color: var(--primary-color);
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    font-weight: 700;
}

section {
    padding: 4rem 0;
}

/* Navbar */
.navbar {
    background: var(--white-color);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

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

.nav-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-menu {
    list-style: none;
    display: flex;
    margin: 0;
    padding: 0;
}

.nav-menu li {
    margin-left: 1.5rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 600;
    transition: color 0.3s;
}

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

.lang-switcher button {
    background: none;
    border: none;
    color: var(--dark-gray);
    cursor: pointer;
    font-weight: 600;
    font-family: 'Montserrat', sans-serif;
}

.lang-switcher button.active {
    color: var(--secondary-color);
}


/* Hero Section */
.hero {
    background-image: linear-gradient(rgba(0, 31, 63, 0.85), rgba(0, 31, 63, 0.85)), url('https://images.unsplash.com/photo-1581091226825-a6a2a5aee158?q=80&w=2070&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white-color);
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: var(--white-color);
}

.hero-content .tagline {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 2rem;
}

.button {
    display: inline-block;
    background-color: var(--secondary-color);
    color: var(--white-color);
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 700;
    transition: transform 0.3s, background-color 0.3s;
}

.button:hover {
    background-color: #e67e22;
    transform: translateY(-3px);
}

/* Services Section */
#services {
    background: var(--light-gray);
}
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    text-align: center;
}

.service-item i {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.service-item h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
}

/* Why Us Section */
.why-us-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.why-us-item {
    text-align: center;
    padding: 1.5rem;
}
.why-us-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}
.why-us-item h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

/* Projects Section */
#projects {
    background: var(--light-gray);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.project-item {
    position: relative;
    border-radius: 5px;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    height: 250px;
}

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

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

.project-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 31, 63, 0.9), transparent);
    color: var(--white-color);
    padding: 3rem 1rem 1rem;
    text-align: left;
    transition: opacity 0.5s ease;
}
.project-overlay h4 {
    color: var(--white-color);
    margin: 0;
    font-size: 1.2rem;
}


/* Contact Section */
#contact {
    text-align: center;
}
#contact p {
    max-width: 600px;
    margin: 1rem auto 2rem;
}
.contact-buttons a {
    margin: 0.5rem;
}
.contact-buttons i {
    margin-right: 0.5rem;
}


/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    background-color: var(--primary-color);
    color: var(--light-gray);
}

.social-links {
    margin-top: 1rem;
}
.social-links a {
    /* **FIXED**: Changed color to be visible on dark background */
    color: var(--light-gray);
    margin: 0 0.75rem;
    font-size: 1.7rem;
    transition: color 0.3s, transform 0.3s;
    display: inline-block;
}
.social-links a:hover {
    color: var(--secondary-color);
    transform: translateY(-3px);
}


/* Responsive */
@media(max-width: 768px) {
    h2 { font-size: 2rem; }
    .hero-content h1 { font-size: 2.5rem; }
    .nav-menu { display: none; }
    .service-grid, .why-us-grid, .project-grid { grid-template-columns: 1fr; }
}