:root{--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono:"JetBrains Mono", monospace;--blue-primary:#0284c7;--blue-hover:#0369a1;--blue-active:#075985;--blue-light:#e0f2fe;--blue-subtle:#0284c714;--blue-glow:#0284c740;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-full:9999px;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-normal:.25s cubic-bezier(.4, 0, .2, 1)}.theme-light{--bg-page:#f8fafc;--bg-surface:#fff;--bg-surface-elevated:#fff;--bg-hover:#f1f5f9;--bg-active:#e2e8f0;--bg-subtle:#f8fafc;--border-subtle:#f1f5f9;--border-default:#e2e8f0;--border-strong:#cbd5e1;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--badge-bg:#f1f5f9;--badge-text:#475569;--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 6px -1px #00000012, 0 2px 4px -2px #0000000d;--shadow-lg:0 10px 15px -3px #00000014, 0 4px 6px -4px #0000000a;--shadow-modal:0 20px 25px -5px #0000001a, 0 8px 10px -6px #0000000d}.theme-dark{--bg-page:#0b0f17;--bg-surface:#111827;--bg-surface-elevated:#1a2234;--bg-hover:#1f293d;--bg-active:#29354d;--bg-subtle:#141c2c;--border-subtle:#1e293b;--border-default:#283548;--border-strong:#3b4b63;--text-primary:#f8fafc;--text-secondary:#cbd5e1;--text-muted:#64748b;--badge-bg:#1e293b;--badge-text:#94a3b8;--shadow-sm:0 1px 2px #0000004d;--shadow-md:0 4px 6px -1px #0006, 0 2px 4px -2px #0000004d;--shadow-lg:0 10px 15px -3px #00000080, 0 4px 6px -4px #0006;--shadow-modal:0 25px 50px -12px #000000b3}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-page);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5;overflow-x:hidden}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}h1,h2,h3,h4,h5,h6{letter-spacing:-.02em;color:var(--text-primary);font-weight:600}.amux-app{flex-direction:column;width:100vw;height:100vh;display:flex;overflow:hidden}.amux-header{background-color:var(--bg-surface);border-bottom:1px solid var(--border-default);z-index:10;flex-shrink:0;justify-content:space-between;align-items:center;height:56px;padding:0 20px;display:flex}.brand-wrapper{cursor:pointer;align-items:center;gap:12px;text-decoration:none;display:flex}.brand-icon{border-radius:var(--radius-sm);background:linear-gradient(135deg, var(--blue-primary), #0ea5e9);color:#fff;width:32px;height:32px;box-shadow:0 2px 8px var(--blue-glow);justify-content:center;align-items:center;display:flex}.brand-title{letter-spacing:-.03em;color:var(--text-primary);align-items:center;gap:8px;font-size:17px;font-weight:700;display:flex}.brand-domain{font-size:11px;font-family:var(--font-mono);background-color:var(--blue-subtle);color:var(--blue-primary);border-radius:var(--radius-full);border:1px solid #0284c733;padding:2px 7px;font-weight:500}.inbox-container{flex:1;height:calc(100vh - 56px);display:flex;overflow:hidden}.inbox-sidebar{background-color:var(--bg-surface);border-right:1px solid var(--border-default);flex-direction:column;flex-shrink:0;gap:20px;width:240px;padding:16px 12px;display:flex}.sidebar-nav{flex-direction:column;gap:4px;display:flex}.nav-item{border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);text-align:left;background:0 0;border:none;justify-content:space-between;align-items:center;padding:8px 12px;font-size:14px;font-weight:500;display:flex}.nav-item:hover{background-color:var(--bg-hover);color:var(--text-primary)}.nav-item.active{background-color:var(--blue-subtle);color:var(--blue-primary);font-weight:600}.nav-icon-label{align-items:center;gap:10px;display:flex}.nav-badge{border-radius:var(--radius-full);background-color:var(--border-default);color:var(--text-secondary);padding:2px 7px;font-size:11px;font-weight:600}.nav-item.active .nav-badge{background-color:var(--blue-primary);color:#fff}.message-list-pane{background-color:var(--bg-surface);border-right:1px solid var(--border-default);flex-direction:column;flex-shrink:0;width:380px;display:flex}.search-filter-bar{border-bottom:1px solid var(--border-default);flex-direction:column;gap:10px;padding:12px 16px;display:flex}.search-input-wrapper{align-items:center;display:flex;position:relative}.search-input-icon{color:var(--text-muted);pointer-events:none;position:absolute;left:12px}.search-input{width:100%;font-size:13px;font-family:var(--font-sans);background-color:var(--bg-page);border:1px solid var(--border-default);border-radius:var(--radius-sm);color:var(--text-primary);transition:border-color var(--transition-fast);outline:none;padding:8px 12px 8px 36px}.search-input:focus{border-color:var(--blue-primary);box-shadow:0 0 0 2px var(--blue-glow)}.filter-tabs{gap:6px;display:flex}.filter-tab{border-radius:var(--radius-sm);border:1px solid var(--border-default);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);background:0 0;padding:4px 10px;font-size:12px;font-weight:500}.filter-tab:hover{background-color:var(--bg-hover);color:var(--text-primary)}.filter-tab.active{background-color:var(--blue-primary);border-color:var(--blue-primary);color:#fff}.message-items-scroll{flex:1;overflow-y:auto}.message-item{border-bottom:1px solid var(--border-subtle);cursor:pointer;transition:background-color var(--transition-fast);flex-direction:column;gap:4px;padding:14px 16px;display:flex;position:relative}.message-item:hover{background-color:var(--bg-hover)}.message-item.selected{background-color:var(--blue-subtle);border-left:3px solid var(--blue-primary)}.message-item.unread{font-weight:600}.message-item-header{justify-content:space-between;align-items:center;gap:8px;display:flex}.message-sender{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;align-items:center;gap:6px;font-size:13px;display:flex;overflow:hidden}.unread-dot{background-color:var(--blue-primary);border-radius:50%;flex-shrink:0;width:7px;height:7px}.message-date{color:var(--text-muted);flex-shrink:0;font-size:11px}.message-subject{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:13px;overflow:hidden}.message-snippet{color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;font-size:12px;overflow:hidden}.message-tags{align-items:center;gap:6px;margin-top:4px;display:flex}.reading-pane{background-color:var(--bg-surface);flex-direction:column;flex:1;display:flex;overflow:hidden}.reading-pane-empty{color:var(--text-muted);text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:12px;padding:40px;display:flex}.reading-header{border-bottom:1px solid var(--border-default);background-color:var(--bg-surface);flex-direction:column;gap:14px;padding:18px 24px;display:flex}.reading-toolbar{justify-content:space-between;align-items:center;display:flex}.reading-subject{color:var(--text-primary);font-size:18px;font-weight:600;line-height:1.3}.reading-meta{justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.sender-info{align-items:center;gap:12px;display:flex}.sender-avatar{color:#fff;background:linear-gradient(135deg,#38bdf8,#0284c7);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;font-size:15px;font-weight:600;display:flex}.sender-details{flex-direction:column;display:flex}.sender-name{color:var(--text-primary);font-size:14px;font-weight:600}.sender-email{color:var(--text-muted);font-size:12px}.recipient-line{color:var(--text-secondary);margin-top:2px;font-size:12px}.reading-actions{align-items:center;gap:8px;display:flex}.btn{font-size:13px;font-weight:500;font-family:var(--font-sans);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:8px 14px;text-decoration:none;display:inline-flex}.btn-primary{background-color:var(--blue-primary);color:#fff}.btn-primary:hover{background-color:var(--blue-hover)}.btn-secondary{background-color:var(--bg-hover);color:var(--text-primary);border-color:var(--border-default)}.btn-secondary:hover{background-color:var(--bg-active);border-color:var(--border-strong)}.btn-icon{border-radius:var(--radius-sm);width:32px;height:32px;color:var(--text-secondary);background:0 0;border:1px solid #0000;padding:0}.btn-icon:hover{background-color:var(--bg-hover);color:var(--text-primary);border-color:var(--border-default)}.privacy-banner{border-radius:var(--radius-sm);color:var(--text-secondary);background-color:#0284c714;border:1px solid #0284c740;justify-content:space-between;align-items:center;margin:16px 24px 0;padding:10px 16px;font-size:12px;display:flex}.reading-body-scroll{flex:1;padding:24px;overflow-y:auto}.email-content-wrapper{max-width:800px;color:var(--text-primary);word-wrap:break-word;font-size:14px;line-height:1.6}.email-content-wrapper img.amux-deferred-image{border:1px dashed var(--border-strong);border-radius:var(--radius-sm);max-width:100%;margin:8px 0;padding:4px;display:block}.email-content-wrapper a{color:var(--blue-primary);text-decoration:underline}.attachments-section{border-top:1px solid var(--border-default);margin-top:24px;padding-top:16px}.attachments-title{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:12px;font-size:12px;font-weight:600}.attachments-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px;display:grid}.attachment-card{background-color:var(--bg-page);border:1px solid var(--border-default);border-radius:var(--radius-sm);color:var(--text-primary);transition:all var(--transition-fast);align-items:center;gap:10px;padding:10px 12px;text-decoration:none;display:flex}.attachment-card:hover{background-color:var(--bg-hover);border-color:var(--blue-primary)}.attachment-icon{color:var(--blue-primary);flex-shrink:0}.attachment-info{flex-direction:column;display:flex;overflow:hidden}.attachment-name{white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:500;overflow:hidden}.attachment-size{color:var(--text-muted);font-size:11px}.modal-backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:100;background-color:#0009;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal-content{background-color:var(--bg-surface-elevated);border:1px solid var(--border-strong);border-radius:var(--radius-lg);box-shadow:var(--shadow-modal);flex-direction:column;gap:20px;width:100%;max-width:520px;padding:28px;animation:.2s ease-out modalEnter;display:flex}@keyframes modalEnter{0%{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}.form-group{flex-direction:column;gap:6px;display:flex}.form-label{color:var(--text-secondary);font-size:12px;font-weight:600}.form-input{font-size:14px;font-family:var(--font-sans);background-color:var(--bg-page);border:1px solid var(--border-default);border-radius:var(--radius-sm);color:var(--text-primary);transition:border-color var(--transition-fast);outline:none;padding:10px 14px}.form-input:focus{border-color:var(--blue-primary);box-shadow:0 0 0 2px var(--blue-glow)}.admin-container{flex:1;width:100%;max-width:1280px;margin:0 auto;padding:32px 40px;overflow-y:auto}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:28px;display:grid}.stat-card{background-color:var(--bg-surface);border:1px solid var(--border-default);border-radius:var(--radius-md);flex-direction:column;gap:8px;padding:20px;display:flex}.stat-label{color:var(--text-muted);font-size:13px;font-weight:500}.stat-value{color:var(--text-primary);letter-spacing:-.02em;font-size:28px;font-weight:700}.data-table{border-collapse:collapse;text-align:left;width:100%;font-size:13px}.data-table th{background-color:var(--bg-hover);color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border-default);padding:10px 16px;font-size:11px;font-weight:600}.data-table td{border-bottom:1px solid var(--border-subtle);color:var(--text-primary);padding:12px 16px}.data-table tr:hover td{background-color:var(--bg-hover)}@media (width<=768px){.inbox-sidebar{display:none}.message-list-pane{border-right:none;width:100%}.message-list-pane.hidden-mobile,.reading-pane.hidden-mobile{display:none}}