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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
    padding: 0;
    margin: 0;
}

a {
    text-decoration: none;
    color: #fff;
}

h1, h2, h3 {
    margin-bottom: 1rem;
    color: #222;
}

/* Header Section */
header {
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('https://source.unsplash.com/1600x900/?city') no-repeat center center/cover;
    height: 100vh;
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 1rem;
}

nav {
    position: absolute;
    top: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    font-size: 2rem;
    font-weight: bold;
}

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

.nav-links li {
    font-size: 1rem;
}

.hero {
    max-width: 700px;
    margin: 0 auto;
    padding: 0 1rem;
}

.hero h1 {
    font-size: 3rem;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

.btn {
    padding: 0.75rem 2rem;
    background-color: #ff6b6b;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #ff4a4a;
}

/* About Section */
.about-section {
    padding: 5rem 2rem;
    text-align: center;
    background-color: #f4f4f4;
}

.about-section p {
    max-width: 600px;
    margin: 1rem auto;
    font-size: 1.125rem;
}

/* Features Section */
.features-section {
    padding: 5rem 2rem;
    text-align: center;
}

.feature-cards {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
}

.card {
    background-color: #fff;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    max-width: 250px;
}

.card h3 {
    font-size: 1.5rem;
}

.card p {
    font-size: 1rem;
}

/* Contact Section */
.contact-section {
    padding: 5rem 2rem;
    background-color: #333;
    color: #fff;
    text-align: center;
}

.contact-section .btn {
    background-color: #ff6b6b;
}

.contact-section .btn:hover {
    background-color: #ff4a4a;
}

/* Footer */
footer {
    background-color: #222;
    color: #fff;
    text-align: center;
    padding: 1rem 0;
}

/* Media Queries for Mobile */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        flex-direction: column;
        gap: 1rem;
    }

    .hero h1 {
        font-size: 2.25rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .feature-cards {
        flex-direction: column;
    }

    .card {
        max-width: 100%;
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.75rem;
    }

    .hero p {
        font-size: 0.9rem;
    }

    .btn {
        padding: 0.5rem 1.5rem;
        font-size: 0.9rem;
    }

    .about-section, .features-section, .contact-section {
        padding: 3rem 1rem;
    }

    .card {
        padding: 1rem;
    }
}