:root {
    --primary-color: #ff0000;
    --secondary-color: #1a1a1a;
    --text-color: #333333;
    --light-gray: #f5f5f5;
    --spacing: 2rem;
}

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

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

/* Hero Section */
.hero {
    background: linear-gradient(rgba(80, 61, 61, 0.7), rgba(0, 0, 0, 0.7)),
                url('./../img/449446473_970649451423897_7817480211026870331_n.jpg');
    background-size: cover;
    background-position: center;
    height: 100vh;
    color: white;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem var(--spacing);
    background: rgba(0, 0, 0, 0.5);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-links a {
    color: white;
    text-decoration: none;
    margin-left: 2rem;
    transition: color 0.3s;
}

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

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 10rem var(--spacing);
    text-align: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.hero-content h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

/* Features Section */
.features {
    padding: var(--spacing);
    background: var(--light-gray);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.feature-card img {
    width: 64px;
    margin-bottom: 1rem;
}

/* Specifications Section */
.specifications {
    padding: var(--spacing);
}

.specs-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.specs-details ul {
    list-style: none;
}

.specs-details li {
    margin-bottom: 1rem;
}

/* Installation Section */
.installation {
    padding: var(--spacing);
    background: var(--light-gray);
}

.installation-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.step {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-weight: bold;
}

/* Contact Section */
.contact {
    padding: var(--spacing);
}

.contact-form {
    max-width: 600px;
    margin: 2rem auto;
    display: grid;
    gap: 1rem;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.contact-form textarea {
    height: 150px;
}

/* Common Styles */
.cta-button {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s;
}

.cta-button:hover {
    background: darkred;
}

h2 {
    text-align: center;
    margin-bottom: 2rem;
}

/* Footer */
footer {
    background: var(--secondary-color);
    color: white;
    padding: var(--spacing);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.social-links a {
    color: white;
    text-decoration: none;
    margin-right: 1rem;
}

.footer-bottom {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content h2 {
        font-size: 1.5rem;
    }

    .specs-container {
        grid-template-columns: 1fr;
    }
}