/* Base Styles */
:root {
    --primary-color: #0066cc;
    --secondary-color: #004d99;
    --accent-color: #ff9900;
    --text-color: #333333;
    --light-gray: #f5f5f5;
    --white: #ffffff;
}

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

html {
    scroll-behavior: smooth;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--white);
    padding: 1rem 2rem;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover, .nav-menu a.active {
    color: var(--primary-color);
}

.nav-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)),
                url('https://images.unsplash.com/photo-1616348436168-de43ad0db179?ixlib=rb-4.0.3') center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    padding: 0 1rem;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--accent-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.cta-button:hover {
    background: #e68a00;
}

/* Phones Section */
.phones-section {
    padding: 5rem 2rem;
    background: var(--light-gray);
}

.phones-section h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.phones-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.phone-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.phone-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.phone-details {
    padding: 1.5rem;
}

.phone-details h3 {
    margin-bottom: 0.5rem;
}

.phone-price {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.2rem;
    margin: 1rem 0;
}

/* About Section */
.about-section {
    padding: 5rem 2rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

/* Contact Section */
.contact-section {
    padding: 5rem 2rem;
    background: var(--light-gray);
}

.contact-section h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-info, .contact-form {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.contact-details p {
    margin: 1rem 0;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.social-links {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: var(--primary-color);
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: var(--secondary-color);
}

.form-group {
    margin-bottom: 1rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: inherit;
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

.submit-button {
    background: var(--primary-color);
    color: var(--white);
    padding: 1rem 2rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    width: 100%;
}

.submit-button:hover {
    background: var(--secondary-color);
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem;
    background: var(--primary-color);
    color: var(--white);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        padding: 1rem;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    }

    .nav-menu.active {
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }

    .nav-toggle {
        display: block;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}