.arh24-migration-form-container {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.arh24-migration-intro-text {
    font-size: var(--font-size-base);
    line-height: 1.7;
    margin-bottom: 2rem;
    color: var(--text-secondary);
    text-align: center;
}

.arh24-migration-form fieldset {
    border: 1px solid var(--border-color-light);
    padding: 1.5rem 2rem;
    margin-bottom: 2.5rem;
    border-radius: var(--border-radius-lg);
    background-color: var(--bg-card);
    box-shadow: var(--shadow-sm);
}

.arh24-migration-form legend {
    font-weight: 700;
    color: var(--accent-primary);
    padding: 0 0.75rem;
    font-size: var(--h3-font-size);
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--accent-primary-soft);
    display: inline-block;
}

.arh24-migration-form .form-group {
    margin-bottom: 1.75rem;
}

.arh24-migration-form label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.6rem;
    font-size: var(--font-size-base);
    color: var(--text-primary);
}

.arh24-migration-form input[type="text"],
.arh24-migration-form input[type="email"],
.arh24-migration-form input[type="url"],
.arh24-migration-form input[type="password"],
.arh24-migration-form select,
.arh24-migration-form textarea {
    width: 100%;
    padding: 0.9rem 1.1rem;
    font-size: var(--font-size-base);
    font-family: var(--font-sans);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.arh24-migration-form input:focus,
.arh24-migration-form select:focus,
.arh24-migration-form textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent-primary) 20%, transparent), var(--shadow-sm);
}

.arh24-migration-form select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%236B7280'%3E%3Cpath fill-rule='evenodd' d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z' clip-rule='evenodd' /%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1.2em 1.2em;
    padding-right: 2.8rem;
}

.arh24-migration-form textarea {
    resize: vertical;
    min-height: 120px;
}

.required-asterisk {
    color: var(--accent-secondary-hover);
    margin-left: 3px;
    font-weight: 700;
}

.error-message {
    display: block;
    color: #c81e1e;
    font-size: var(--font-size-sm);
    margin-top: 0.3rem;
    font-weight: 500;
    min-height: 1.2em;
}
.error-message:not(:empty)::before {
    content: "\f071\00a0";
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    margin-right: 0.3em;
}

.form-field-info {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-top: 0.4rem;
    background-color: var(--accent-primary-soft);
    padding: 0.5rem 0.75rem;
    border-radius: var(--border-radius-sm);
    border-left: 3px solid var(--accent-primary);
    line-height: 1.5;
}
.form-field-info::before {
    content: "\f05a\00a0";
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    color: var(--accent-primary);
    margin-right: 0.4em;
}

.warning-message {
    display: block;
    font-size: var(--font-size-sm);
    color: #854d0e;
    margin-top: 0.4rem;
    background-color: #fefce8;
    padding: 0.6rem 0.8rem;
    border-radius: var(--border-radius-sm);
    border: 1px solid #fde68a;
    line-height: 1.5;
}
.warning-message i.fas.fa-exclamation-triangle {
    margin-right: 0.5em;
    color: #ca8a04;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1rem;
}
.checkbox-group input[type="checkbox"] {
    margin-right: 0.8rem;
    margin-top: 0.3rem;
    width: auto;
    flex-shrink: 0;
    height: 1.1em;
    width: 1.1em;
}
.checkbox-group .checkbox-label {
    font-weight: normal;
    margin-bottom: 0;
    font-size: var(--font-size-sm);
    line-height: 1.5;
    color: var(--text-secondary);
}
.checkbox-group .checkbox-label a {
    text-decoration: underline;
    color: var(--accent-primary);
    font-weight: 500;
}
.checkbox-group .checkbox-label a:hover {
    color: var(--accent-primary-hover);
}

.arh24-migration-form .form-group.submit-group {
    text-align: center;
    margin-top: 2rem;
}

#arh24-migration-messages-container {
    margin-top: 1.5rem;
}
#arh24-migration-messages ul {
    list-style-type: disc;
    list-style-position: inside;
    padding-left: 0.5rem;
    margin-top: 0.5rem;
    color: inherit;
}
#arh24-migration-messages ul li {
    margin-bottom: 0.3rem;
    font-size: var(--font-size-sm);
}

input[aria-invalid="true"],
select[aria-invalid="true"],
textarea[aria-invalid="true"] {
    border-color: #c81e1e;
    box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.15);
}