.messages-tab{background:var(--surface-0);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);--messages-tab-chrome:17rem;min-width:0;height:calc(100vh - var(--messages-tab-chrome));flex-direction:column;flex:auto;min-height:32rem;max-height:60rem;display:flex;overflow:hidden}.messages-tab-banner{font-size:var(--text-xs);color:var(--text-secondary);background:var(--surface-1);border-bottom:1px solid var(--border-subtle);flex-shrink:0;align-items:center;gap:.4375rem;padding:.5rem 1rem;display:flex}.messages-tab-banner-icon{color:var(--text-tertiary);flex-shrink:0}.messages-tab-toolbar{border-bottom:1px solid var(--border-subtle);flex-shrink:0;align-items:center;gap:.75rem;padding:.625rem .75rem;display:flex}.messages-tab-search{flex:auto;min-width:0}.messages-tab-split{flex:auto;grid-template-columns:20.5rem minmax(0,1fr);min-height:0;display:grid}.messages-tab-list-column{border-right:1px solid var(--border-subtle);flex-direction:column;min-width:0;display:flex}.messages-tab-list{flex:auto;min-height:0;overflow-y:auto}.messages-tab-pane{flex-direction:column;min-width:0;display:flex}@media (width<=1080px){.messages-tab-split{grid-template-columns:minmax(0,1fr)}.messages-tab-list-column{border-right:0;border-bottom:1px solid var(--border-subtle)}.messages-tab-list{max-height:20rem}}.messages-tab-thread{text-align:start;cursor:pointer;border:0;border-bottom:1px solid var(--border-subtle);background:0 0;gap:.625rem;width:100%;min-width:0;padding:.75rem 1rem;display:flex}.messages-tab-thread:hover{background:var(--surface-1)}.messages-tab-thread[aria-current=true]{background:var(--accent-subtle)}.messages-tab-thread:focus-visible{outline:2px solid var(--focus-ring);outline-offset:-2px}.messages-tab-thread-body{flex-direction:column;flex:1;gap:.125rem;min-width:0;display:flex}.messages-tab-thread-head,.messages-tab-thread-subject-row{align-items:baseline;gap:.5rem;min-width:0;display:flex}.messages-tab-thread-with,.messages-tab-thread-subject{min-width:0;font-size:var(--text-sm);text-overflow:ellipsis;white-space:nowrap;font-weight:500;display:block;overflow:hidden}.messages-tab-thread-snippet{font-size:var(--text-xs);color:var(--text-tertiary);text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.messages-tab-thread-clip{color:var(--text-tertiary);flex-shrink:0;display:inline-flex}.messages-tab-thread-when{margin-inline-start:auto}.messages-tab-pane-header{border-bottom:1px solid var(--border-subtle);flex-shrink:0;align-items:flex-start;gap:.75rem;padding:1rem 1.5rem .875rem;display:flex}.messages-tab-pane-title{font-size:var(--text-base);text-wrap:pretty;font-weight:600}.messages-tab-pane-meta{font-size:var(--text-xs);color:var(--text-secondary);margin-top:.1875rem}.messages-tab-pane-actions{flex-shrink:0;align-items:center;gap:.375rem;margin-inline-start:auto;display:flex}.messages-tab-pane-scroll{flex:auto;min-height:0;padding:.5rem 1.5rem 1.25rem;overflow-y:auto}.messages-tab-message{border-bottom:1px solid var(--border-subtle);padding:.875rem 0}.messages-tab-message:last-child{border-bottom:0}.messages-tab-message-summary-row{align-items:flex-start;gap:.25rem;min-width:0;display:flex}.messages-tab-message-summary{text-align:start;cursor:pointer;background:0 0;border:0;flex:auto;align-items:flex-start;gap:.625rem;min-width:0;display:flex}.messages-tab-message-body-column{flex:1;min-width:0;display:block}.messages-tab-message-actions{flex-shrink:0;justify-content:flex-end;width:1.75rem;display:flex}.messages-tab-retry{color:var(--text-primary);text-underline-offset:2px;cursor:pointer;background:0 0;border:0;padding:0;font-weight:500;text-decoration:underline}.messages-tab-retry:focus-visible,.messages-tab-message-summary:focus-visible{outline:2px solid var(--focus-ring);outline-offset:2px}.messages-tab-message-head{align-items:baseline;gap:.5rem;min-width:0;display:flex}.messages-tab-message-from{font-size:var(--text-sm);flex-shrink:0;font-weight:600}.messages-tab-message-recipients{min-width:0;font-size:var(--text-xs);color:var(--text-tertiary);text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.messages-tab-message-preview{font-size:var(--text-sm);color:var(--text-tertiary);text-overflow:ellipsis;white-space:nowrap;margin-top:.125rem;overflow:hidden}.messages-tab-message-detail{margin-inline-start:2.375rem}.messages-tab-message-body{max-width:68ch;font-size:var(--text-sm);line-height:var(--leading-relaxed);color:var(--text-primary);text-wrap:pretty;white-space:pre-wrap;margin-top:.625rem}.messages-tab-when{font-size:var(--text-xs);font-variant-numeric:tabular-nums;color:var(--text-tertiary);white-space:nowrap;flex-shrink:0}.messages-tab-when[data-delivery-state=failed]{color:var(--danger-strong);font-weight:500}.messages-tab-failure{font-size:var(--text-xs);align-items:center;gap:.5rem;margin-top:.625rem;display:flex}.messages-tab-failure-text{color:var(--danger-strong)}.messages-tab-attachments{flex-wrap:wrap;gap:.5rem;margin-top:.75rem;display:flex}.messages-tab-attachment{font-size:var(--text-xs);color:var(--text-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);align-items:center;gap:.375rem;padding:.3125rem .625rem;display:inline-flex}.messages-tab-skeleton-list{gap:.75rem;padding:1rem .75rem}.messages-tab-skeleton-row{height:3.5rem}.messages-tab-skeleton-pane{flex-direction:column;gap:.75rem;padding:1rem 1.5rem;display:flex}.messages-tab-skeleton-title{width:40%;height:1.25rem}.messages-tab-skeleton-body{height:6rem}.messages-tab-notice{text-align:center;flex-direction:column;flex:auto;justify-content:center;align-items:center;gap:.625rem;padding:3rem 1.5rem;display:flex}.messages-tab-notice-title{font-size:var(--text-sm);font-weight:600}.messages-tab-notice-description{max-width:44ch;font-size:var(--text-sm);line-height:var(--leading-relaxed);color:var(--text-tertiary);text-wrap:pretty}