.kru-sign-up-form {
    max-width: 550px;
    margin: 50px auto;
    padding: 35px;
    background: #ffffff;
    border-radius: 14px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    font-family: Arial, sans-serif;
}

.kru-sign-up-form h2 {
    text-align: center;
    margin-bottom: 25px;
    font-size: 28px;
    color: #222;
}

.kru-sign-up-form form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.kru-sign-up-form label {
    font-size: 14px;
    font-weight: 600;
    color: #444;
    margin-bottom: 6px;
    display: block;
    line-height: 1.4;
}

.kru-sign-up-form input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid #d8d8d8;
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.25s ease;
    box-sizing: border-box;
}

.kru-sign-up-form input:focus {
    outline: none;
    border-color: #87c425;
    box-shadow: 0 0 0 3px rgba(45, 114, 217, 0.15);
}

/* Subdomain input styles */
.domain-preview {
    margin-top: 10px;
    padding: 12px 14px;
    background: #f7f9fc;
    border: 1px solid #dce4f0;
    border-radius: 8px;
    font-size: 14px;
    color: #555;
}

.domain-preview strong {
    display: block;
    margin-top: 4px;
    font-size: 16px;
    color: #000;
    word-break: break-word;
}

.subdomain-help {
    display: block;
    margin-top: 6px;
    font-size: 13px;
    color: #777;
}

/* Button styles */
#sign-up-btn {
    margin-top: 10px;
    padding: 15px;
    background: #87c425;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.25s ease;
}

#sign-up-btn:hover {
    background: #64911b;
}

@media (max-width: 600px) {
    .kru-sign-up-form {
        padding: 25px 20px;
        margin: 25px 15px;
    }
}