body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f0f4f8;
    color: #333;
    text-align: center;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    background: linear-gradient(90deg, #87ceeb, #4682b4);
}

.navbar ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 20px;
}

.navbar ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
}

.navbar ul li a:hover {
    color: #ffd700;
}

.logo {
    width: 80px;
}

.header-content {
    padding: 100px 20px;
    background: linear-gradient(180deg, #4682b4, #5f9ea0);
    color: white;
}

header h1 {
    font-size: 48px;
    margin: 0;
}

header p {
    font-size: 18px;
    margin: 15px 0;
}

.btn {
    padding: 15px 30px;
    text-decoration: none;
    font-size: 16px;
    border-radius: 30px;
    transition: transform 0.3s, box-shadow 0.3s;
    margin: 10px;
    display: inline-block;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

.btn.primary {
    background-color: #ff6347;
    color: white;
    border: none;
}

.btn.ios {
    background-color: #1e90ff;
    color: white;
}

.btn.android {
    background-color: #32cd32;
    color: white;
}

.features, .download, .signup {
    padding: 60px 20px;
    background-color: #fff;
    border-radius: 10px;
    margin: 30px auto;
    max-width: 800px;
}

.features h2, .download h2, .signup h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.feature {
    background-color: #e6f7ff;
    margin: 20px 0;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.signup form {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.signup input {
    padding: 10px;
    width: 300px;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.signup input:focus {
    outline: none;
    border-color: #4682b4;
}

footer {
    background: linear-gradient(90deg, #4682b4, #87ceeb);
    color: white;
    padding: 20px;
}

footer p {
    margin: 5px;
}

@media (max-width: 600px) {
    .header-content h1 {
        font-size: 36px;
    }

    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }

    .signup input {
        width: 100%;
    }
}