.join-main {
    max-width: 1100px;
    margin: 2rem auto;
    padding: 1rem;
}

.join-main > h2,
.join-main > p {
    text-align: center;
}

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

.join-form {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    padding: 1.5rem;
    background-color: #f5f7fa;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.join-form label {
    margin-top: 0.5rem;
    font-weight: bold;
}

.join-form input,
.join-form select,
.join-form textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #999;
    border-radius: 5px;
    font: inherit;
    box-sizing: border-box;
}

.join-form input:focus,
.join-form select:focus,
.join-form textarea:focus {
    outline: 2px solid #164b78;
    border-color: #164b78;
}

.join-form button {
    margin-top: 1rem;
    padding: 1rem;
    border: none;
    border-radius: 5px;
    background-color: #164b78;
    color: white;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
}

.join-form button:hover {
    background-color: #0c3455;
}

.membership-cards {
    display: grid;
    gap: 1rem;
    align-content: start;
}

.membership-cards > h2 {
    text-align: center;
}

.membership-card {
    padding: 1.2rem;
    text-align: center;
    background-color: #fff;
    border: 1px solid #164b78;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    animation: card-appear 1s ease both;
}

.membership-card a {
    color: #164b78;
    font-weight: bold;
}

@keyframes card-appear {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media screen and (min-width: 750px) {
    .join-layout {
        grid-template-columns: 1.2fr 0.8fr;
        align-items: start;
    }
}