:root {
    --primary-color: #0a0a0a;
    --secondary-color: #ffffff;
    --accent-color: #00ff00;
    --text-color: #e0e0e0;
}

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

body {
    font-family: 'Arial', sans-serif;
    background-color: var(--primary-color);
    color: var(--text-color);
    line-height: 1.6;
    max-width:1200px;
    margin:0 auto;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Offer Section */
#offer {
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, rgba(0,0,0,0.8), rgba(0,0,0,0.6));
    border-bottom: 2px solid var(--accent-color);
}

#offer h1 {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 20px;
}

#offer button {
    background-color: var(--accent-color);
    color: var(--primary-color);
    border: none;
    padding: 12px 24px;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.3s ease;
}

#offer button:hover {
    transform: scale(1.05);
}

/* Subscribe Form */
#subscribe {
    background-color: rgba(255,255,255,0.05);
    padding: 40px 0;
}

#subscribe form {
    display: flex;
    justify-content: center;
    gap: 10px;
}

#subscribe input[type="email"] {
    padding: 10px;
    width: 300px;
    background-color: rgba(255,255,255,0.1);
    border: 1px solid var(--accent-color);
    color: var(--secondary-color);
}

#subscribe button {
    background-color: var(--accent-color);
    color: var(--primary-color);
    border: none;
    padding: 10px 20px;
    cursor: pointer;
}

/* Products Section */
#products {
    background-color: rgba(0,0,0,0.7);
    padding: 40px 0;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.product {
    background-color: rgba(255,255,255,0.05);
    border: 1px solid var(--accent-color);
    padding: 20px;
    text-align: center;
    transition: transform 0.3s ease;
}

.product:hover {
    transform: scale(1.05);
}

.product-article {
    background-color: rgba(0,255,0,0.1);
    border-left: 4px solid var(--accent-color);
    padding: 20px;
    margin-top: 20px;
}

/* Specialists Section */
#specialists {
    background-color: rgba(255,255,255,0.05);
    padding: 40px 0;
}

.specialist-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.specialist {
    background-color: rgba(0,0,0,0.5);
    border: 1px solid var(--accent-color);
    padding: 20px;
    text-align: center;
}

/* Reviews Section */
#reviews {
    background-color: rgba(0,0,0,0.7);
    padding: 40px 0;
}

.review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.review {
    background-color: rgba(255,255,255,0.05);
    border-left: 4px solid var(--accent-color);
    padding: 20px;
    font-style: italic;
}

/* Contacts Section */
#contacts {
    background-color: rgba(255,255,255,0.05);
    padding: 40px 0;
    text-align: center;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: var(--accent-color);
    text-align: center;
    padding: 20px 0;
    border-top: 1px solid var(--accent-color);
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    #offer h1 {
        font-size: 2rem;
    }

    #subscribe form {
        flex-direction: column;
        align-items: center;
    }

    #subscribe input[type="email"] {
        width: 100%;
        max-width: 300px;
    }

    .product-grid,
    .specialist-grid,
    .review-grid {
        grid-template-columns: 1fr;
    }
}