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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

h2 {
    font-size: 2.8rem;
    text-align: center;
    margin-bottom: 3rem;
    color: #1a1a1a;
}

p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

/* Header */
.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo h1 {
    font-size: 1.8rem;
    color: #1a1a1a;
}

.nav a {
    margin-left: 2rem;
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav a:hover {
    color: #0066cc;
}

/* Hero */
.hero {
    background: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.4)), url('https://via.placeholder.com/1920x800?text=Engineering+Hero+Background');
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
    padding: 12rem 0 8rem;
    margin-top: 80px;
}

.hero h2 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    color: white;
}

.hero p {
    font-size: 1.4rem;
    max-width: 800px;
    margin: 0 auto 2rem;
    color: white;
}

.btn-primary {
    display: inline-block;
    background: #0066cc;
    color: white;
    padding: 1rem 2rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.3s;
}

.btn-primary:hover {
    background: #0052a3;
}

/* Sections */
.section {
    padding: 6rem 0;
}

.alt-bg {
    background: #f8f9fa;
}

/* About */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.credentials li {
    margin-bottom: 0.8rem;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    text-align: center;
}

.service-card h3 {
    margin-bottom: 1rem;
    color: #0066cc;
}

/* Projects */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-item img {
    width: 100%;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.project-item h4 {
    margin-bottom: 0.5rem;
}

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.testimonial {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.quote {
    font-style: italic;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.author {
    font-weight: 600;
    color: #0066cc;
}

/* Contact */
.contact-info {
    margin: 2rem 0;
    font-size: 1.2rem;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-family: inherit;
}

.contact-form button {
    width: 100%;
}

.form-note {
    text-align: center;
    margin-top: 1rem;
    font-style: italic;
    color: #666;
}

/* Footer */
.footer {
    background: #1a1a1a;
    color: white;
    text-align: center;
    padding: 2rem 0;
}

/* Responsive */
@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h2 {
        font-size: 2.8rem;
    }
    
    .nav {
        display: flex;
        flex-direction: column;
    }
    
    .nav a {
        margin: 0.5rem 0;
    }
}