body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    color: #333;
    background-color: #eef1f5;
}

header {
    background-color: #222;
    color: #fff;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

header nav a {
    color: #fff;
    margin: 0 1rem;
    text-decoration: none;
}

header nav a:hover {
    text-decoration: underline;
}

header nav .sign-in {
    background-color: #2575fc;
    color: #fff;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    margin-left: 1rem;
    transition: background-color 0.3s;
}

header nav .sign-in:hover {
    background-color: #0056b3;
}

#hero {
    background: linear-gradient(to right, #6a11cb, #2575fc);
    color: #fff;
    text-align: center;
    padding: 5rem 2rem;
    position: relative;
}

#hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
}

#hero button {
    background-color: #fff;
    color: #2575fc;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: background-color 0.3s ease;
}

#hero button:hover {
    background-color: #2575fc;
    color: #fff;
}

#subscriptions {
    padding: 3rem 1rem;
    text-align: center;
    background: linear-gradient(to bottom right, #f9f9f9, #e6e9f0);
    border-radius: 12px;
}

#subscriptions h2 {
    font-size: 2.5rem;
    color: #2575fc;
    margin-bottom: 2rem;
}

.plans {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

.plan {
    background: #fff;
    border-radius: 10px;
    padding: 2rem;
    width: 280px;
    position: relative;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    flex: 1 1 calc(100% - 2rem);
    max-width: 300px;
    margin: 0 auto;
}

.plan:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.plan h3 {
    font-size: 1.8rem;
    color: #2575fc;
    margin-bottom: 1rem;
}

.plan .badge {
    position: absolute;
    top: -15px;
    right: -15px;
    background: #ff6a5c;
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: bold;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
}

.plan .badge.best-value {
    background: #ffa41b;
}

.plan p {
    font-size: 1.1rem;
    color: #333;
    margin-bottom: 1rem;
}

.plan ul {
    list-style: none;
    padding: 0;
    margin-bottom: 1.5rem;
}

.plan ul li {
    font-size: 0.95rem;
    color: #555;
    margin: 0.5rem 0;
}

.plan button {
    background: #2575fc;
    color: #fff;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: bold;
    transition: background-color 0.3s;
}

.plan button:hover {
    background-color: #0056b3;
}

@media (min-width: 768px) {
    .plan {
        flex: 1 1 calc(33.333% - 2rem);
    }
}

#about {
    background: linear-gradient(to right, #f5f7fa, #eef1f5);
    padding: 4rem 2rem;
    text-align: center;
    border-radius: 12px;
    margin: 2rem 0;
}

#about h2 {
    font-size: 2.5rem;
    color: #2575fc;
    margin-bottom: 1.5rem;
}

#about p {
    font-size: 1.25rem;
    color: #555;
    margin: 0 auto;
    max-width: 800px;
}

#features {
    background: linear-gradient(to bottom right, #e6e9f0, #f5f7fa);
    padding: 4rem 1rem;
    text-align: center;
    border-radius: 12px;
    margin: 2rem 0;
}

#features h2 {
    font-size: 2.5rem;
    color: #2575fc;
    margin-bottom: 2rem;
}

#features ul {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    list-style: none;
    padding: 0;
    margin: 0 auto;
    max-width: 1200px;
}

#features ul li {
    background: #fff;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    text-align: left;
}

.contact-container {
    background: linear-gradient(135deg, #2575fc, #6a11cb);
    padding: 3rem 2rem;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    color: #fff;
    text-align: center;
    margin: 2rem auto;
    max-width: 750px;
    width: 90%;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: auto;
    min-height: 525px;
    box-sizing: border-box;
}

.contact-container h2 {
    font-size: 2.5rem;
    color: #fff;
    margin-bottom: 1.5rem;
}

.contact-container form {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    box-sizing: border-box;
}

.contact-container input,
.contact-container textarea {
    padding: 0.75rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    width: 100%;
    background-color: #f9f9f9;
    color: #333;
    box-sizing: border-box;
    margin-bottom: 1rem;
}

.contact-container textarea {
    resize: none;
    min-height: 100px;
}

.contact-container .submit-button {
    background-color: #2575fc;
    color: #fff;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 20px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    align-self: center;
    margin-top: 0;
}

.contact-container .submit-button:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
}

button:focus, a:focus {
    outline: 2px solid #2575fc;
    outline-offset: 2px;
}

@media (max-width: 768px) {
    .contact-container {
        padding: 2rem 1rem;
        margin: 1.5rem auto;
        min-height: auto;
    }

    .contact-container h2 {
        font-size: 1.8rem;
    }

    .contact-container input,
    .contact-container textarea {
        font-size: 1rem;
        padding: 0.5rem;
    }

    .contact-container .submit-button {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
}

footer {
    text-align: center;
    padding: 1.5rem;
    background-color: #222;
    color: #ccc;
    font-size: 0.9rem;
}

footer .footer-links a {
    color: #2575fc;
    margin: 0 1rem;
    text-decoration: none;
}

footer .footer-links a:hover {
    color: #0056b3;
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        align-items: flex-start;
    }

    header nav {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
        justify-content: space-between;
        width: 100%;
    }

    header nav .sign-in {
        margin-left: 0;
        align-self: flex-end;
    }

    footer .footer-links {
        display: flex;
        justify-content: center;
        gap: 1rem;
    }
}