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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f9f9f9;
}

/* Navigation */
.navbar {
    background: #1a1a1a;
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: bold;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

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

.nav-links a:hover {
    color: #00d4ff;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d5a7b 100%);
    color: white;
    padding: 100px 20px;
    text-align: center;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero-content p {
    font-size: 18px;
    margin-bottom: 10px;
}

.certs {
    font-size: 14px;
    color: #00d4ff;
    font-weight: bold;
    margin: 15px 0 !important;
}

.cta-btn {
    background: #00d4ff;
    color: #1a1a1a;
    padding: 12px 30px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
    margin-top: 20px;
}

.cta-btn:hover {
    background: #00a8cc;
}

/* Services Section */
.services-preview {
    max-width: 1200px;
    margin: 60px auto;
    padding: 0 20px;
}

.services-preview h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 40px;
}

.service-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.card {
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.card h3 {
    color: #2d5a7b;
    margin-bottom: 10px;
}

.card p {
    color: #666;
}

/* Footer */
.footer {
    background: #1a1a1a;
    color: white;
    text-align: center;
    padding: 30px;
    margin-top: 60px;
}

.footer a {
    color: #00d4ff;
    text-decoration: none;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        gap: 15px;
    }

    .hero-content h1 {
        font-size: 32px;
    }

    .hero-content p {
        font-size: 16px;
    }
}