/* Paper Owl Mail pages only: the window envelope, the address changes and the hold countdown. */
.envelope { border: 1px solid var(--rule); border-radius: 4px; padding: 14px 16px 20px; margin: 12px 0; display: grid; gap: 18px; max-width: 520px; }
.envelope .return { font-size: 0.82rem; line-height: 1.35; }
.envelope .recipient { margin-left: 12%; font-size: 1rem; line-height: 1.4; }
.envelope .label { display: block; font: 500 0.65rem/1.4 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--label); margin-bottom: 2px; }
.changes { margin: 8px 0 0; padding-left: 20px; }
.changes del { color: var(--label); }
.countdown { font-variant-numeric: tabular-nums; font-weight: 600; }
.cancel-form { margin: 8px 0 0; }
.test-mode { border-left: 4px solid var(--heading); font-weight: 500; }