@media (max-width: 760px), (orientation: portrait) {
  .role-migration-prompt {
    position: absolute;
    top: calc(4rem + env(safe-area-inset-top));
    left: 0.625rem;
    right: 0.625rem;
    z-index: 32;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.97);
    box-shadow: var(--shadow-floating);
    backdrop-filter: blur(1rem);
    padding: 0.85rem;
    animation: role-migration-mobile-in 180ms ease-out;
  }

  .role-migration-prompt header,
  .role-migration-confirm-card > header,
  .role-migration-failure-card > header {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
  }

  .role-migration-icon {
    width: 2.2rem;
    height: 2.2rem;
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: rgba(79, 99, 255, 0.11);
  }

  .role-migration-icon img {
    width: 1.1rem;
    height: 1.1rem;
  }

  .role-migration-icon.is-danger {
    background: rgba(217, 58, 58, 0.1);
  }

  .role-migration-icon.is-danger img,
  .role-migration-danger img {
    filter: invert(34%) sepia(73%) saturate(1732%) hue-rotate(332deg) brightness(91%) contrast(90%);
  }

  .role-migration-prompt header > div,
  .role-migration-confirm-card > header > div,
  .role-migration-failure-card > header > div {
    min-width: 0;
  }

  .role-migration-prompt strong {
    font-size: 0.86rem;
  }

  .role-migration-prompt p {
    margin: 0.25rem 0 0;
    color: var(--muted);
    font-size: 0.78rem;
    line-height: 1.5;
  }

  .role-migration-prompt-actions {
    display: grid;
    grid-template-columns: minmax(0, 0.7fr) minmax(0, 0.7fr) minmax(6.9rem, 1.35fr);
    gap: 0.35rem;
    margin-top: 0.75rem;
  }

  .role-migration-prompt-actions .btn,
  .role-migration-confirm-actions .btn,
  .role-migration-file-button {
    min-width: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    padding-left: 0.5rem;
    padding-right: 0.5rem;
    font-size: 0.78rem;
  }

  .role-migration-prompt-actions .btn img,
  .role-migration-confirm-actions .btn img,
  .role-migration-file-button img {
    width: 0.95rem;
    height: 0.95rem;
    flex: 0 0 auto;
  }

  .role-migration-prompt-actions .btn-primary img,
  .role-migration-confirm-actions .btn-primary img,
  .role-migration-file-button img {
    filter: brightness(0) invert(1);
  }

  .role-migration-confirm {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: grid;
    place-items: end center;
    padding: max(0.75rem, env(safe-area-inset-top)) 0.625rem max(0.75rem, env(safe-area-inset-bottom));
    background: rgba(15, 23, 42, 0.44);
    backdrop-filter: blur(0.3rem);
  }

  .role-migration-confirm-card {
    width: 100%;
    max-height: calc(100dvh - max(1.5rem, env(safe-area-inset-top) + env(safe-area-inset-bottom)));
    overflow: auto;
    border: 1px solid rgba(255, 255, 255, 0.72);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.99);
    box-shadow: 0 1.5rem 4rem rgba(30, 45, 90, 0.24);
    animation: role-migration-sheet-in 200ms ease-out;
  }

  .role-migration-confirm-card > header {
    position: sticky;
    top: 0;
    z-index: 2;
    padding: 0.9rem 1rem 0.8rem;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(0.8rem);
  }

  .role-migration-confirm-card small,
  .role-migration-failure-card small {
    display: block;
    color: var(--brand);
    font-size: 0.63rem;
    font-weight: 800;
    letter-spacing: 0;
  }

  .role-migration-confirm-card h2,
  .role-migration-failure-card h2 {
    margin: 0.1rem 0 0;
    font-size: 1.05rem;
    line-height: 1.35;
  }

  .role-migration-confirm-card header p {
    margin: 0.2rem 0 0;
    color: var(--muted);
    font-size: 0.75rem;
    line-height: 1.45;
  }

  .role-migration-confirm-body {
    display: grid;
    gap: 0.75rem;
    padding: 0.85rem 1rem;
  }

  .role-migration-copy-block strong {
    display: block;
    margin-bottom: 0.25rem;
    font-size: 0.84rem;
  }

  .role-migration-copy-block p,
  .role-migration-danger,
  .role-migration-progress p,
  .role-migration-failure-card > p {
    margin: 0;
    color: var(--muted);
    font-size: 0.76rem;
    line-height: 1.56;
  }

  .role-migration-copy-block.is-warning {
    border-left: 0.18rem solid rgba(183, 121, 31, 0.5);
    background: rgba(255, 248, 231, 0.74);
    padding: 0.65rem 0.7rem;
    border-radius: 0 var(--radius) var(--radius) 0;
  }

  .role-migration-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-top: 0.55rem;
  }

  .role-migration-stats span {
    border: 1px solid rgba(79, 99, 255, 0.15);
    border-radius: 999px;
    background: rgba(79, 99, 255, 0.07);
    color: #3140d4;
    padding: 0.25rem 0.5rem;
    font-size: 0.69rem;
    white-space: nowrap;
  }

  .role-migration-danger {
    display: flex;
    align-items: flex-start;
    gap: 0.4rem;
    color: var(--danger);
    font-weight: 650;
  }

  .role-migration-danger img {
    width: 1rem;
    height: 1rem;
    flex: 0 0 auto;
    margin-top: 0.15rem;
  }

  .role-migration-progress {
    display: grid;
    gap: 0.45rem;
    border-top: 1px solid var(--line);
    padding-top: 0.75rem;
  }

  .role-migration-progress > div {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    color: var(--text);
    font-size: 0.75rem;
  }

  .role-migration-progress i {
    height: 0.42rem;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(120, 140, 180, 0.15);
  }

  .role-migration-progress i b {
    display: block;
    width: var(--migration-progress, 0%);
    height: 100%;
    border-radius: inherit;
    background: var(--brand-gradient);
    transition: width 180ms ease;
  }

  .role-migration-confirm-actions {
    position: sticky;
    bottom: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.6rem;
    padding: 0.25rem 1rem calc(0.9rem + env(safe-area-inset-bottom));
    background: rgba(255, 255, 255, 0.97);
  }

  .role-migration-confirm-actions.is-complete {
    grid-template-columns: minmax(11rem, 1fr);
    justify-content: center;
  }

  .role-migration-success {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    border: 1px solid rgba(0, 168, 132, 0.2);
    border-radius: var(--radius);
    background: rgba(0, 168, 132, 0.07);
    padding: 0.65rem 0.7rem;
  }

  .role-migration-success > img {
    width: 1rem;
    height: 1rem;
    flex: 0 0 auto;
    margin-top: 0.1rem;
    filter: invert(43%) sepia(72%) saturate(761%) hue-rotate(124deg) brightness(86%) contrast(101%);
  }

  .role-migration-success strong {
    display: block;
    color: #007a61;
    font-size: 0.8rem;
  }

  .role-migration-success p {
    margin: 0.2rem 0 0;
    color: var(--muted);
    font-size: 0.72rem;
    line-height: 1.48;
  }

  .role-migration-failure {
    position: fixed;
    top: max(0.625rem, env(safe-area-inset-top));
    left: 0.625rem;
    right: 0.625rem;
    z-index: 110;
    pointer-events: none;
  }

  .role-migration-failure-card {
    pointer-events: auto;
    border: 1px solid rgba(217, 58, 58, 0.2);
    border-radius: var(--radius);
    background: #fff;
    isolation: isolate;
    opacity: 1;
    box-shadow: var(--shadow-floating);
    backdrop-filter: blur(1rem);
    padding: 0.85rem;
    animation: role-migration-mobile-in 180ms ease-out;
  }

  .role-migration-failure-card > p {
    margin-top: 0.65rem;
  }

  .role-migration-failure-card .role-migration-progress {
    margin-top: 0.7rem;
  }

  .role-migration-file-button {
    width: 100%;
    min-height: 2.5rem;
    margin-top: 0.75rem;
    cursor: pointer;
  }

  .role-migration-file-button.is-disabled {
    pointer-events: none;
    opacity: 0.56;
  }

  @keyframes role-migration-mobile-in {
    from { opacity: 0; transform: translateY(-0.45rem); }
    to { opacity: 1; transform: translateY(0); }
  }

  @keyframes role-migration-sheet-in {
    from { opacity: 0; transform: translateY(1.25rem); }
    to { opacity: 1; transform: translateY(0); }
  }
}