body {
    font-family: 'Roboto', Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.8;
    color: #2c3e50;
    background-color: #ecf0f1;
}

header {
    background: linear-gradient(to right, #3498db, #2980b9);
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.nav-brand {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 1px;
}

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

.nav-menu a {
    color: white;
    text-decoration: none;
    font-size: 1.1rem;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #dfe6e9;
}

.hamburger {
    display: none;
    font-size: 2rem;
    cursor: pointer;
}

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

.hero {
    text-align: center;
    padding: 3rem 1rem;
    background: #3498db;
    color: white;
    border-radius: 10px;
    margin-bottom: 3rem;
}

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

.cta-btn {
    display: inline-block;
    background: #2ecc71;
    color: white;
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: background 0.3s;
}

.cta-btn:hover {
    background: #27ae60;
}

.benefits ul {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.benefits li {
    background: #ffffff;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    text-align: center;
}

.tips ol {
    padding-left: 1.5rem;
}

.tips li {
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

.about {
    background: #ffffff;
    padding: 2.5rem;
    margin: 2rem 0;
    border-radius: 12px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.testimonials blockquote {
    background: #f7f9fb;
    padding: 1.5rem;
    margin: 1rem 0;
    border-left: 6px solid #3498db;
    border-radius: 8px;
}

.offer {
    text-align: center;
    background: #2ecc71;
    color: white;
    padding: 2.5rem;
    margin: 2rem 0;
    border-radius: 10px;
}

.product-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.product-card {
    background: #ffffff;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 3px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.product-card:hover {
    transform: translateY(-5px);
}

.add-to-cart {
    background: #2ecc71;
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.3s;
}

.add-to-cart:hover {
    background: #27ae60;
}

.cart-section {
    background: #ffffff;
    padding: 2.5rem;
    border-radius: 10px;
    margin-bottom: 2rem;
}

#cart-items .cart-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding: 1rem;
    background: #f7f9fb;
    border-radius: 8px;
}

#cart-items .cart-item button {
    background: #e74c3c;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
}

#lead-form {
    margin-top: 2rem;
}

#lead-form .form-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

#lead-form input, #lead-form textarea {
    padding: 0.75rem;
    border: 1px solid #dfe6e9;
    border-radius: 8px;
    font-size: 1rem;
}

#lead-form button {
    background: #3498db;
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
}

#lead-form button:hover {
    background: #2980b9;
}

footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem;
    margin-top: 3rem;
}

.contact {
    margin-bottom: 1rem;
}

.more-btn {
    display: inline-block;
    background: #3498db;
    color: white;
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    border-radius: 8px;
    transition: background 0.3s;
}

.more-btn:hover {
    background: #2980b9;
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: #3498db;
        padding: 1rem;
    }

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

    .hamburger {
        display: block;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .benefits ul {
        grid-template-columns: 1fr;
    }
}