@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&display=swap');

:root {
    --primary-color: #1a1a1a;
    --secondary-color: #f2f2f2;
    --accent-color: #007bff;
    --text-color: #333;
    --background-color: #fff;
    --header-height: 80px;
}

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

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

a {
    text-decoration: none;
    color: var(--accent-color);
}

ul {
    list-style: none;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: var(--background-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links li {
    display: inline-block;
    margin-left: 30px;
}

.nav-links a {
    font-size: 16px;
    color: var(--text-color);
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--accent-color);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
}

main {
    padding-top: var(--header-height);
}

.hero {
    display: flex;
    align-items: center;
    justify-content: center;
    height: calc(100vh - var(--header-height));
    background-image: url('https://images.unsplash.com/photo-1521737604893-d14cc237f11d?ixlib=rb-4.0.3&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=1768&q=80');
    background-size: cover;
    background-position: center;
    color: #fff;
    text-align: center;
}

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

.hero-content p {
    font-size: 20px;
    margin-bottom: 30px;
}

.cta-button {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--accent-color);
    color: #fff;
    border-radius: 5px;
    font-size: 18px;
    transition: background-color 0.3s ease;
}

.cta-button:hover {
    background-color: #0056b3;
}

.about-section, .products-section, .help-section, .contact-section {
    padding: 80px 20px;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.about-section h2, .products-section h2, .help-section h2, .contact-section h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.contact-section p {
    margin-bottom: 40px;
    font-size: 18px;
}

.contact-container {
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
    background-color: var(--secondary-color);
    padding: 40px;
    border-radius: 10px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 700;
}

.form-group input, 
.form-group select, 
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-family: inherit;
    font-size: 16px;
}

.contact-form .cta-button {
    width: 100%;
    border: none;
    cursor: pointer;
}

.help-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.help-item {
    background-color: var(--secondary-color);
    padding: 30px;
    border-radius: 10px;
    text-align: left;
}

.help-item h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.about-content p {
    font-size: 18px;
    max-width: 800px;
    margin: 0 auto;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.product-card {
    background-color: var(--secondary-color);
    padding: 30px;
    border-radius: 10px;
    text-align: left;
}

.product-card img {
    width: 100%;
    border-radius: 10px;
    margin-bottom: 20px;
}

.product-card h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

footer {
    background-color: var(--primary-color);
    color: #fff;
    padding: 40px 20px;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.social-links li {
    display: inline-block;
    margin: 0 10px;
}

.social-links a {
    color: #fff;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        width: 100%;
        background-color: var(--background-color);
        flex-direction: column;
        padding: 20px;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        margin: 10px 0;
        text-align: center;
    }

    .menu-toggle {
        display: block;
    }

    .hero-content h1 {
        font-size: 36px;
    }

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