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

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

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

.header {
    position: sticky;
    top: 0;
    background: #0b2c4a;
    padding: 15px 0;
    z-index: 1000;
}

.logo {
    color: #ffffff;
    font-size: 1.2rem;
    font-weight: 600;
}

.hero {
    padding: 100px 0;
    text-align: center;
    background: #f4f7fb;
}

.hero h2 {
    font-size: 2rem;
    color: #0b2c4a;
    margin-bottom: 20px;
}

.hero p {
    max-width: 700px;
    margin: 0 auto 30px auto;
    color: #555;
}

.btn-primary {
    display: inline-block;
    padding: 12px 25px;
    background: #0b2c4a;
    color: #ffffff;
    text-decoration: none;
    border-radius: 4px;
    transition: background 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: #164a7a;
}

.section {
    padding: 80px 0;
}

.section h3 {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: #0b2c4a;
}

.section-intro {
    text-align: center;
    margin-bottom: 40px;
    color: #555;
}

.alt-bg {
    background: #f9fbfd;
}

.products {
    margin-bottom: 40px;
}

.product-block {
    margin-bottom: 25px;
}

.product-block h4 {
    color: #0b2c4a;
    margin-bottom: 8px;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 20px;
}

.card {
    background: #ffffff;
    padding: 20px;
    border-radius: 6px;
    border: 1px solid #e3e8ef;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
}

.card h5 {
    margin-bottom: 10px;
    color: #0b2c4a;
}

.contact-container {
    text-align: center;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto 30px auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-form input,
.contact-form textarea {
    padding: 12px;
    border: 1px solid #ccd6e0;
    border-radius: 4px;
    font-size: 0.95rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #0b2c4a;
}

.contact-details {
    margin-bottom: 30px;
    color: #444;
}

.map-placeholder iframe {
    width: 100%;
    height: 300px;
    border-radius: 6px;
}

@media (min-width: 768px) {
    .hero h2 {
        font-size: 2.5rem;
    }
}