:root{--font-family:"Inter", "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-heading:"Geist", "Inter", var(--font-family);--radius-xs:4px;--radius-sm:4px;--radius-md:6px;--radius-lg:8px;--radius-xl:8px;--accent-primary:#6366f1;--accent-hover:#4f46e5;--accent-gradient:linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);--accent-glow:#6366f126;--status-unread:#2563eb;--status-star:#f59e0b;--status-danger:#ef4444;--status-success:#10b981}[data-theme=dark]{--bg-main:#0f1218;--bg-sidebar:#141822;--bg-card:#161b26d9;--bg-card-hover:#1e2534e6;--bg-active:#6366f124;--bg-glass:#121620d9;--bg-modal:#161b26;--bg-input:#ffffff0a;--bg-input-focus:#ffffff12;--border-color:#ffffff14;--border-focus:#6366f180;--text-main:#f3f4f6;--text-muted:#9ca3af;--text-dim:#6b7280;--mail-body-bg:#fff;--mail-body-text:#111827;--bg-unread:linear-gradient(90deg, #6366f124 0%, #161b26f2 100%);--shadow-lg:0 10px 25px -5px #0006}[data-theme=light]{--bg-main:#f8fafc;--bg-sidebar:#f1f5f9;--bg-card:#fff;--bg-card-hover:#f1f5f9;--bg-active:#6366f11a;--bg-unread:linear-gradient(90deg, #6366f11f 0%, #fff 100%);--bg-glass:#ffffffd9;--bg-modal:#fff;--bg-input:#f1f5f9;--bg-input-focus:#e2e8f0;--border-color:#e2e8f0;--border-focus:#6366f1;--text-main:#0f172a;--text-muted:#475569;--text-dim:#94a3b8;--mail-body-bg:#fff;--mail-body-text:#0f172a;--shadow-lg:0 10px 25px -5px #00000014}*{box-sizing:border-box;margin:0;padding:0;font-weight:400}body{font-family:var(--font-family);background-color:var(--bg-main);color:var(--text-main);-webkit-font-smoothing:antialiased;width:100vw;height:100vh;transition:background-color .2s,color .2s;overflow:hidden}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{border-radius:var(--radius-xs);background:#96969633}::-webkit-scrollbar-thumb:hover{background:#96969666}@keyframes fadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@keyframes popIn{0%{opacity:0;transform:scale(.98)}to{opacity:1;transform:scale(1)}}.animate-fade-in{animation:.2s cubic-bezier(.16,1,.3,1) forwards fadeIn}.animate-pop-in{animation:.18s cubic-bezier(.16,1,.3,1) forwards popIn}.app-container{background:var(--bg-main);flex-direction:column;width:100vw;height:100vh;display:flex}.app-header{background:var(--bg-glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color);z-index:10;justify-content:space-between;align-items:center;height:58px;padding:0 20px;display:flex}.brand-logo{font-family:var(--font-heading);color:var(--text-main);letter-spacing:-.3px;align-items:center;gap:10px;font-size:1.15rem;font-weight:600;display:flex}.brand-icon{border-radius:var(--radius-lg);background:var(--accent-gradient);color:#fff;justify-content:center;align-items:center;width:32px;height:32px;display:flex}.header-search{flex:1;align-items:center;max-width:440px;margin:0 24px;display:flex;position:relative}.search-input{background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-lg);width:100%;color:var(--text-main);padding:8px 14px 8px 38px;font-size:.88rem;transition:all .15s}.search-input:focus{background:var(--bg-input-focus);border-color:var(--accent-primary);outline:none}.search-icon{color:var(--text-muted);pointer-events:none;position:absolute;left:12px}.header-actions{align-items:center;gap:12px;display:flex}.mobile-menu-button{display:none}.sync-progress-bar{border-bottom:1px solid var(--border-color);background:var(--bg-glass);align-items:center;gap:18px;padding:8px 20px;font-size:.78rem;display:flex}.sync-progress-bar>div:first-child{min-width:220px;color:var(--text-muted);justify-content:space-between;gap:12px;display:flex}.sync-progress-bar strong{color:var(--text-main);font-weight:600}.sync-progress-track{border-radius:var(--radius-xs);background:var(--bg-input);flex:1;height:6px;overflow:hidden}.sync-progress-track span{background:var(--accent-gradient);height:100%;transition:width .25s;display:block}.theme-toggle-btn{background:var(--bg-input);border:1px solid var(--border-color);color:var(--text-main);border-radius:var(--radius-lg);cursor:pointer;align-items:center;gap:6px;padding:6px 12px;font-size:.82rem;font-weight:500;transition:all .15s;display:flex}.theme-toggle-btn:hover{background:var(--bg-input-focus);border-color:var(--accent-primary)}.status-chip{border-radius:var(--radius-lg);color:var(--status-success);background:#10b9811a;border:1px solid #10b98133;align-items:center;gap:8px;padding:5px 12px;font-size:.78rem;font-weight:500;display:flex}.status-dot{background:var(--status-success);border-radius:50%;width:7px;height:7px}.app-body{flex:1;display:flex;overflow:hidden}.app-sidebar{background:var(--bg-sidebar);border-right:1px solid var(--border-color);flex-direction:column;gap:12px;width:240px;height:100%;padding:16px 12px;display:flex;overflow:hidden}.sidebar-scroll-area{flex-direction:column;flex:1;gap:10px;padding-right:2px;display:flex;overflow-y:auto}.sidebar-footer{border-top:1px solid var(--border-color);flex-direction:column;flex-shrink:0;gap:10px;margin-top:auto;padding-top:10px;display:flex}.btn-compose{border-radius:var(--radius-lg);background:var(--accent-gradient);color:#fff;width:100%;font-family:var(--font-heading);cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;padding:10px 16px;font-size:.9rem;font-weight:600;transition:all .15s;display:flex}.btn-compose:hover{opacity:.95}.folder-nav{flex-direction:column;gap:3px;display:flex}.folder-item{border-radius:var(--radius-md);color:var(--text-muted);cursor:pointer;justify-content:space-between;align-items:center;padding:8px 12px;font-size:.88rem;font-weight:500;transition:all .15s;display:flex}.folder-item:hover{background:var(--bg-input);color:var(--text-main)}.folder-item.active{background:var(--bg-active);color:var(--accent-primary);font-weight:600}.folder-left{align-items:center;gap:10px;display:flex}.badge-unread{background:var(--accent-primary);color:#fff;border-radius:var(--radius-xs);padding:2px 7px;font-size:.72rem;font-weight:600}.email-list-pane{background:var(--bg-card);border-right:1px solid var(--border-color);flex-direction:column;width:360px;display:flex}.pane-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:14px 16px;display:flex}.pane-title{font-family:var(--font-heading);font-size:1.05rem;font-weight:600}.filter-tabs{background:var(--bg-input);border-radius:var(--radius-md);border:1px solid var(--border-color);padding:2px;display:flex}.filter-btn{border-radius:var(--radius-xs);color:var(--text-muted);cursor:pointer;background:0 0;border:none;padding:3px 8px;font-size:.75rem;font-weight:500;transition:all .15s}.filter-btn.active{background:var(--bg-card);color:var(--text-main);font-weight:600}.email-items-container{flex:1;overflow-y:auto}.email-card{border-bottom:1px solid var(--border-color);cursor:pointer;border-left:4px solid #0000;gap:10px;padding:14px 16px;transition:all .15s cubic-bezier(.16,1,.3,1);display:flex;position:relative}.email-card:hover{background:var(--bg-card-hover)}.email-card.active{background:var(--bg-active);border-left-color:var(--accent-primary)}.email-card.unread{background:var(--bg-unread);border-left-color:var(--accent-primary)}.email-card.unread .sender-name{font-size:.9rem;color:var(--text-main)!important;font-weight:700!important}.email-card.unread .email-subject{color:var(--text-main)!important;font-weight:700!important}.unread-pill{letter-spacing:.5px;text-transform:uppercase;border-radius:var(--radius-xs);background:var(--accent-gradient);color:#fff;align-items:center;gap:4px;padding:2px 7px;font-size:.65rem;font-weight:700;display:inline-flex;box-shadow:0 2px 6px #6366f14d}.unread-dot-glowing{background:var(--accent-primary);width:9px;height:9px;box-shadow:0 0 8px var(--accent-primary), 0 0 12px #6366f180;border-radius:50%;display:inline-block}.email-card-quick-actions{background:var(--bg-glass);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:5;gap:4px;padding:2px 4px;display:none;position:absolute;bottom:12px;right:12px}.email-card:hover .email-card-quick-actions{display:flex}.avatar-circle{border-radius:var(--radius-lg);width:36px;height:36px;font-family:var(--font-heading);color:#fff;flex-shrink:0;justify-content:center;align-items:center;font-size:.9rem;font-weight:600;display:flex}.email-content-preview{flex:1;min-width:0}.email-row-top{justify-content:space-between;align-items:center;margin-bottom:2px;display:flex}.sender-name{white-space:nowrap;text-overflow:ellipsis;font-size:.88rem;font-weight:500;overflow:hidden}.email-date{color:var(--text-dim);font-size:.72rem}.email-subject{color:var(--text-main);white-space:nowrap;text-overflow:ellipsis;margin-bottom:2px;font-size:.82rem;overflow:hidden}.email-snippet{color:var(--text-muted);-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:.76rem;line-height:1.35;display:-webkit-box;overflow:hidden}.star-icon{color:var(--text-dim);cursor:pointer;transition:color .15s}.star-icon.starred{color:var(--status-star);fill:var(--status-star)}.email-reader-pane{background:var(--bg-main);flex-direction:column;flex:1;display:flex;overflow-y:auto}.empty-state{color:var(--text-dim);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:12px;display:flex}.empty-icon{opacity:.25;width:56px;height:56px}.reader-toolbar{border-bottom:1px solid var(--border-color);background:var(--bg-glass);justify-content:space-between;align-items:center;padding:12px 24px;display:flex}.toolbar-group{align-items:center;gap:6px;display:flex}.btn-icon{background:var(--bg-input);border:1px solid var(--border-color);color:var(--text-muted);border-radius:var(--radius-md);cursor:pointer;justify-content:center;align-items:center;width:34px;height:34px;transition:all .15s;display:flex}.btn-icon:hover{background:var(--bg-input-focus);color:var(--text-main)}.reader-body{flex:1;padding:28px}.email-header-details{border-bottom:1px solid var(--border-color);margin-bottom:20px;padding-bottom:16px}.reader-subject{font-family:var(--font-heading);margin-bottom:14px;font-size:1.4rem;font-weight:600;line-height:1.3}.reader-meta-row{justify-content:space-between;align-items:center;display:flex}.reader-sender-info{align-items:center;gap:12px;display:flex}.meta-name{font-size:.95rem;font-weight:600}.meta-email{color:var(--text-muted);font-size:.82rem}.mail-body-container{background:var(--mail-body-bg);color:var(--mail-body-text);border-radius:var(--radius-lg);border:1px solid var(--border-color);min-height:250px;box-shadow:var(--shadow-lg);padding:24px;font-size:.92rem;line-height:1.6;overflow-x:auto}.attachments-section{border-top:1px solid var(--border-color);margin-top:20px;padding-top:16px}.attachments-title{color:var(--text-muted);margin-bottom:10px;font-size:.85rem;font-weight:600}.attachments-grid{flex-wrap:wrap;gap:10px;display:flex}.attachment-chip{background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-main);align-items:center;gap:8px;padding:8px 12px;font-size:.82rem;text-decoration:none;transition:all .15s;display:flex}.attachment-chip:hover{background:var(--bg-input-focus);border-color:var(--accent-primary)}.modal-overlay{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);z-index:100;background:#0009;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal-card{background:var(--bg-modal);border:1px solid var(--border-color);border-radius:var(--radius-lg);width:100%;max-width:680px;box-shadow:var(--shadow-lg);flex-direction:column;display:flex;overflow:hidden}.modal-header{border-bottom:1px solid var(--border-color);font-family:var(--font-heading);justify-content:space-between;align-items:center;padding:16px 20px;font-size:1.05rem;font-weight:600;display:flex}.modal-body{flex-direction:column;gap:14px;padding:20px;display:flex}.form-group{flex-direction:column;gap:5px;display:flex}.form-label{color:var(--text-muted);font-size:.82rem;font-weight:500}.form-input,.form-textarea,.form-select{background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-md);width:100%;color:var(--text-main);font-family:var(--font-family);padding:8px 12px;font-size:.88rem;transition:border .15s}.form-input:focus,.form-textarea:focus,.form-select:focus{border-color:var(--accent-primary);background:var(--bg-input-focus);outline:none}.form-textarea{resize:vertical;min-height:160px}.modal-footer{border-top:1px solid var(--border-color);justify-content:flex-end;align-items:center;gap:10px;padding:14px 20px;display:flex}.settings-tabs{border-bottom:1px solid var(--border-color);background:var(--bg-input);gap:6px;padding:0 20px;display:flex}.settings-tab-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;align-items:center;gap:6px;padding:10px 14px;font-size:.85rem;font-weight:500;transition:all .15s;display:flex}.settings-tab-btn:hover{color:var(--text-main)}.settings-tab-btn.active{color:var(--accent-primary);border-bottom-color:var(--accent-primary);font-weight:600}.login-container{background:var(--bg-main);justify-content:center;align-items:center;width:100vw;height:100vh;display:flex}.login-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);width:100%;max-width:400px;box-shadow:var(--shadow-lg);flex-direction:column;gap:20px;padding:32px;display:flex}.login-header{text-align:center;flex-direction:column;align-items:center;gap:10px;display:flex}.login-title{font-family:var(--font-heading);font-size:1.4rem;font-weight:600}.login-subtitle{color:var(--text-muted);font-size:.82rem}.credentials-box{background:var(--bg-input);border:1px dashed var(--border-color);border-radius:var(--radius-md);color:var(--accent-primary);flex-direction:column;gap:3px;padding:10px 14px;font-size:.78rem;display:flex}.btn-primary{background:var(--accent-gradient);color:#fff;border-radius:var(--radius-md);font-family:var(--font-heading);cursor:pointer;border:none;padding:10px 16px;font-size:.9rem;font-weight:600;transition:all .15s}.btn-primary:hover{opacity:.92}@media (width<=900px){.mobile-menu-button{display:flex}.app-sidebar{z-index:90;box-shadow:var(--shadow-lg);transition:left .25s cubic-bezier(.16,1,.3,1);position:fixed;top:58px;bottom:0;left:-260px}.app-sidebar.mobile-open{left:0}.email-list-pane{flex:1;width:100%}.email-reader-pane{display:none}.email-reader-pane.mobile-active{z-index:80;display:flex;position:fixed;inset:58px 0 0}.header-search{max-width:200px;margin:0 10px}.sync-progress-bar{gap:8px;padding:8px 12px}.sync-progress-bar>div:first-child{flex-direction:column;flex:1;gap:2px;min-width:0}.sync-progress-track{max-width:90px}}@media (width<=640px){.app-header{padding:0 12px}.header-search,.brand-logo span{display:none}}