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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f8f9fa;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: #1a1a2e;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #fff;
    text-decoration: none;
    letter-spacing: 1px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #fff;
}

/* Hero */
.hero {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #fff;
    padding: 6rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #b8b8b8;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: #0f3460;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s;
}

.btn:hover {
    background: #1a5276;
}

/* Features */
.features {
    padding: 4rem 0;
    background: #fff;
}

.features h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #1a1a2e;
}

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

.feature-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.feature-card h3 {
    color: #0f3460;
    margin-bottom: 0.5rem;
}

/* CTA */
.cta {
    background: #16213e;
    color: #fff;
    padding: 4rem 0;
    text-align: center;
}

.cta h2 {
    margin-bottom: 1rem;
}

.cta p {
    margin-bottom: 2rem;
    color: #b8b8b8;
}

/* Footer */
.footer {
    background: #1a1a2e;
    color: #888;
    padding: 2rem 0;
    text-align: center;
}

.footer p {
    margin: 0.3rem 0;
}

/* About page */
.about-content, .services-content, .contact-content {
    padding: 4rem 0;
    background: #fff;
}

.about-content h1, .services-content h1, .contact-content h1 {
    color: #1a1a2e;
    margin-bottom: 1.5rem;
}

.about-content p, .services-content p, .contact-content p {
    margin-bottom: 1rem;
    color: #555;
}

.service-item {
    background: #f8f9fa;
    padding: 1.5rem;
    margin-bottom: 1rem;
    border-radius: 5px;
    border-left: 4px solid #0f3460;
}

.service-item h3 {
    color: #0f3460;
    margin-bottom: 0.5rem;
}

/* Contact form */
.contact-form {
    max-width: 500px;
    margin-top: 2rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.8rem;
    margin-bottom: 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.contact-form textarea {
    min-height: 150px;
    resize: vertical;
}

.contact-form button {
    padding: 0.8rem 2rem;
    background: #0f3460;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
}

.contact-form button:hover {
    background: #1a5276;
}

/* 404 */
.not-found {
    text-align: center;
    padding: 6rem 0;
}

.not-found h1 {
    font-size: 4rem;
    color: #1a1a2e;
}

.not-found p {
    color: #666;
    margin-bottom: 2rem;
}