.machine-operation-modal {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.machine-operation-modal[hidden] { display: none; }
.machine-operation-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.68); backdrop-filter: blur(8px); }
.machine-operation-dialog { position: relative; width: min(100%, 520px); border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); box-shadow: var(--shadow); overflow: hidden; }
.machine-operation-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 20px 24px 0; }
.machine-operation-header h2 { margin: 0; font-size: 18px; }
.machine-operation-close { border: 0; background: transparent; color: var(--muted); font-size: 28px; line-height: 1; cursor: pointer; padding: 2px 6px; }
.machine-operation-close:disabled { opacity: .35; cursor: not-allowed; }
.machine-operation-body { padding: 22px 24px 8px; text-align: center; }
.machine-operation-spinner { width: 38px; height: 38px; margin: 0 auto 14px; border: 3px solid var(--line); border-top-color: var(--brand); border-radius: 50%; animation: machine-operation-spin .8s linear infinite; }
.machine-operation-spinner[hidden] { display: none; }
.machine-operation-state { display: inline-flex; align-items: center; padding: 6px 10px; border-radius: 999px; background: rgba(96,165,250,.13); color: var(--cold); font-size: 12px; font-weight: 700; }
.machine-operation-message { margin: 14px 0 0; color: var(--text); line-height: 1.6; }
.machine-operation-detail, .machine-operation-hint { margin: 8px 0 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.machine-operation-footer { display: flex; justify-content: flex-end; padding: 8px 24px 20px; }
.machine-operation-modal[data-state="completed"] .machine-operation-state, .machine-operation-modal[data-state="refresh-completed"] .machine-operation-state { background: rgba(52,211,153,.13); color: var(--ok); }
.machine-operation-modal[data-state="queued"] .machine-operation-state, .machine-operation-modal[data-state="duplicate"] .machine-operation-state, .machine-operation-modal[data-state="timeout"] .machine-operation-state { background: rgba(251,191,36,.13); color: var(--warn); }
.machine-operation-modal[data-state="failed"] .machine-operation-state, .machine-operation-modal[data-state="authentication-failure"] .machine-operation-state, .machine-operation-modal[data-state="refresh-failed"] .machine-operation-state, .machine-operation-modal[data-state="monitoring-error"] .machine-operation-state { background: rgba(251,113,133,.13); color: var(--danger); }
.machine-operation-modal[data-state="queued"] .machine-operation-close { color: var(--warn); }
@keyframes machine-operation-spin { to { transform: rotate(360deg); } }
@media (max-width: 780px) { .machine-operation-dialog { border-radius: 16px; } .machine-operation-header, .machine-operation-body, .machine-operation-footer { padding-inline: 18px; } }