.app{flex-direction:column;flex:1;height:100vh;margin:0;display:flex;overflow:hidden}.header{color:#000;background:#789;border-bottom:1px solid #e5e7eb;flex-shrink:0;grid-template-columns:auto 1fr auto;align-items:center;padding:0 20px;display:grid;position:relative}.header-brand{align-items:center;display:flex}.nav-toggle{display:none}.logo{font-weight:700;font-size:var(--text-3xl);cursor:pointer;color:#000}.nav{justify-content:center;align-items:center;gap:20px;display:flex}.nav a{color:#000;font-size:var(--text-lg);border-radius:var(--radius-sm);padding:6px 10px;text-decoration:none;transition:all .2s}.nav a:hover{background:#f3f4f6}.nav .active{color:var(--color-surface);background:#2563eb}.nav .active-split{color:#4c1d95;background:#ede9fe;box-shadow:inset 0 -2px #7c3aed}@media (max-width:1100px){.nav-toggle{border-radius:var(--radius-sm);width:36px;height:30px;color:var(--color-text-ink);font-size:var(--text-2xl);cursor:pointer;background:#f1f5f9;border:1px solid #cbd5e1;justify-content:center;align-items:center;margin-left:12px;line-height:1;transition:background .15s;display:inline-flex}.nav-toggle:hover{background:#e2e8f0}.nav{display:none}.nav.open{background:var(--color-surface);z-index:200;border:1px solid #e5e7eb;border-radius:0 0 10px 10px;flex-direction:column;justify-content:flex-start;align-items:stretch;gap:4px;min-width:210px;padding:8px;display:flex;position:absolute;top:100%;left:16px;box-shadow:0 12px 28px #0000002e}.nav.open a{padding:9px 12px}}.actions{align-items:center;gap:12px;display:flex}.split-hint{font-size:var(--text-sm);color:#4c1d95;border-radius:var(--radius-pill);white-space:nowrap;background:#ede9fe;border:1px solid #ddd6fe;padding:4px 10px}.duplicate-pane-btn{border-radius:var(--radius-sm);width:34px;height:32px;color:var(--color-text-ink);cursor:pointer;background:0 0;border:1px solid #0000;justify-content:center;align-items:center;transition:all .15s;display:inline-flex}.duplicate-pane-btn:hover{background:#f3f4f6;border-color:#d1d5db}.duplicate-pane-btn.active{color:#3730a3;background:#eef2ff;border-color:#818cf8}.duplicate-pane-icon{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round;width:23px;height:23px;display:block}.header-sidebar-toggle{font-size:var(--text-3xl);cursor:pointer;color:#2563eb;border-radius:var(--radius-sm);background:#f1f5f9;border:1px solid #e2e8f0;align-items:center;margin-right:12px;padding:4px 8px;transition:background .2s;display:flex}.header-sidebar-toggle:hover{background:#e2e8f0}.profile-menu{position:relative}.profile-trigger{border-radius:var(--radius-pill);background:var(--color-surface);cursor:pointer;border:1px solid #d1d5db;align-items:center;gap:6px;padding:4px 8px 4px 4px;transition:all .15s;display:inline-flex}.profile-trigger:hover{background:#f3f4f6;border-color:#9ca3af}.profile-avatar{width:30px;height:30px;color:var(--color-surface);font-size:var(--text-md);background:#2563eb;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-weight:600;display:flex}.profile-trigger-caret{font-size:var(--text-xs);color:var(--color-text-muted);line-height:1}.profile-dropdown{background:var(--color-surface);border-radius:var(--radius-md);z-index:100;border:1px solid #e5e7eb;width:240px;padding:6px;position:absolute;top:calc(100% + 8px);right:0;box-shadow:0 10px 25px #0000001a,0 4px 6px #0000000d}.profile-dropdown-header{border-bottom:1px solid #f3f4f6;margin-bottom:6px;padding:10px 12px 12px}.profile-dropdown-name{font-size:var(--text-md);color:var(--color-text-primary);white-space:nowrap;text-overflow:ellipsis;font-weight:600;overflow:hidden}.profile-dropdown-item{border-radius:var(--radius-sm);cursor:pointer;width:100%;font-size:var(--text-lg);color:var(--color-text-primary);text-align:left;background:0 0;border:none;align-items:center;gap:10px;padding:9px 12px;transition:all .1s;display:flex}.profile-dropdown-item:hover{background:#f3f4f6}.profile-dropdown-icon{font-size:var(--text-2xl);justify-content:center;width:20px;display:inline-flex}.profile-dropdown-divider{background:#f3f4f6;height:1px;margin:6px 0}.profile-dropdown-logout{color:var(--color-danger-hover)}.profile-dropdown-logout:hover{background:#fee2e2}.body{flex:1;min-height:0;display:flex;overflow:hidden}.global-search-row{background:#eef4fb;border-bottom:1px solid #dbe3ee;flex-shrink:0;align-items:center;gap:10px;height:40px;display:flex}.global-search-box{border-radius:var(--radius-md);background:var(--color-surface);color:#0f172a;border:1px solid #cbd5e1;align-items:center;gap:8px;width:min(760px,100%);height:36px;padding:0 10px;display:flex}.global-search-icon{font-size:var(--text-3xl);color:#475569;line-height:1}.global-search-box input{min-width:0;font-size:var(--text-lg);color:#0f172a;background:0 0;border:none;outline:none;flex:1}.global-search-clear{border-radius:var(--radius-pill);width:24px;height:24px;color:var(--color-text-slate);cursor:pointer;font-size:var(--text-3xl);background:#e2e8f0;border:none;line-height:1}.global-search-clear:hover{background:#cbd5e1}.email-layout-actions{align-items:center;gap:6px;padding-right:12px;display:inline-flex}.email-layout-btn{border-radius:var(--radius-md);background:var(--color-surface);width:36px;height:32px;color:var(--color-text-slate);cursor:pointer;border:1px solid #cbd5e1;justify-content:center;align-items:center;transition:all .15s;display:inline-flex}.email-layout-btn:hover{background:#f8fafc;border-color:#94a3b8}.email-layout-btn.active{color:#1d4ed8;background:#dbeafe;border-color:#2563eb}.email-layout-btn svg{fill:none;stroke:currentColor;stroke-width:1.9px;stroke-linecap:round;stroke-linejoin:round;width:22px;height:22px}.icon-sidebar{white-space:nowrap;background:#f5f7fb;border-right:1px solid #e5e7eb;flex-direction:column;align-items:center;gap:15px;width:60px;padding-top:12px;padding-bottom:12px;transition:width .25s cubic-bezier(.4,0,.2,1),border-color .2s;display:flex;position:relative;overflow:hidden}.sidebar-collapsed .icon-sidebar{border-right-color:#0000;width:0}.sidebar-collapse-btn{font-size:var(--text-3xl);color:#64748b;cursor:pointer;background:0 0;border:none;border-radius:4px;align-items:center;margin-bottom:5px;padding:6px;display:flex}.sidebar-collapse-btn:hover{color:#2563eb;background:#e2e8f0}.icon-sidebar-spacer{flex:1}.sidebar-collapsed .global-search-row{padding-left:20px}.content{flex:1;display:flex;overflow:hidden}.split-pane{background:var(--color-email-bg);flex-direction:column;flex:1;min-width:0;display:flex;position:relative;overflow:hidden}.split-pane.active-target:after{content:"";pointer-events:none;z-index:5;border:2px solid #2563eb73;position:absolute;inset:0}.split-pane+.split-pane{border-left:1px solid #e5e7eb}.split-pane-body{flex:1;min-width:0;min-height:0;display:flex;overflow:hidden}.split-pane-body>*{flex:1;min-width:0;min-height:0}.split-pane-toolbar{background:#eef2f7;border-bottom:1px solid #d8e0eb;flex-shrink:0;justify-content:space-between;align-items:center;gap:12px;height:44px;padding:0 12px 0 14px;display:flex}.split-pane-title{min-width:0;color:var(--color-text-slate);font-size:var(--text-md);text-overflow:ellipsis;white-space:nowrap;font-weight:600;overflow:hidden}.split-close-btn{background:var(--color-surface);cursor:pointer;border-radius:var(--radius-sm);height:32px;font-size:var(--text-lg);color:var(--color-text-muted);border:1px solid #e5e7eb;flex-shrink:0;justify-content:center;align-items:center;gap:6px;padding:0 10px;transition:all .15s;display:flex;box-shadow:0 1px 2px #0000000d}.split-close-btn:hover{color:var(--color-danger-hover);background:#fee2e2;border-color:#fecaca}.split-empty{text-align:center;color:var(--color-text-muted);background:#fafafa;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:8px;padding:40px;display:flex}.split-empty-icon{opacity:.4;font-size:48px}.split-empty-title{font-size:var(--text-xl);color:var(--color-text-secondary);font-weight:600}.split-empty-hint{font-size:var(--text-md);color:var(--color-text-muted);max-width:280px}.split-loading{color:var(--color-text-muted);font-size:var(--text-md);padding:20px}.header-welcome{white-space:nowrap;align-items:center;gap:8px;margin-right:8px;display:flex}.header-welcome-text{font-size:var(--text-md);color:var(--color-text-secondary)}.header-welcome-text strong{color:var(--color-text-primary)}.header-welcome-role{font-size:var(--text-xs);color:#4338ca;border-radius:var(--radius-pill);background:#e0e7ff;padding:2px 9px;font-weight:600}.login-page{background:linear-gradient(135deg,#667eea,#764ba2);justify-content:center;align-items:center;height:100vh;display:flex}.login-card{background:var(--color-surface);border-radius:var(--radius-lg);flex-direction:column;width:350px;padding:40px;display:flex;box-shadow:0 8px 25px #00000026}.login-card h2{margin-bottom:5px}.subtitle{font-size:var(--text-lg);color:#666;margin-bottom:20px}.login-card input{border-radius:var(--radius-sm);font-size:var(--text-lg);border:1px solid #ddd;margin-bottom:15px;padding:10px}.login-card button{color:var(--color-surface);border-radius:var(--radius-sm);cursor:pointer;background:#667eea;border:none;padding:10px;font-weight:700}.login-card button:hover{background:#5a67d8}.switch-auth{font-size:var(--text-lg);text-align:center;margin-top:15px}.switch-auth span{color:#667eea;cursor:pointer;font-weight:700}.error{color:red;font-size:var(--text-md);text-align:center;margin-top:10px}.auth-divider{color:#999;font-size:var(--text-sm);align-items:center;margin:14px 0;display:flex}.auth-divider:before,.auth-divider:after{content:"";background:#e5e5e5;flex:1;height:1px}.auth-divider span{padding:0 10px}.login-card .google-btn{background:var(--color-surface);color:#333;border:1px solid #ddd;font-weight:500}.login-card .google-btn:hover{background:#f7f7f7}.login-card .outlook-btn{color:var(--color-surface);background:#0f6cbd;border:1px solid #0f6cbd;font-weight:500}.login-card .outlook-btn:hover{background:#0c578f}:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--color-surface:#fff;--color-surface-soft:#f8fafc;--color-surface-hover:#f3f4f6;--color-text-black:black;--color-text-primary:#111827;--color-text-ink:#1f2937;--color-text-secondary:#374151;--color-text-slate:#334155;--color-text-muted:#6b7280;--color-border:#e5e7eb;--color-border-soft:#d8e0eb;--color-border-muted:#d1d5db;--color-input-border:#cbd5e1;--color-input-border-strong:#9ca3af;--color-primary:#1a73e8;--color-primary-hover:#1669c1;--color-primary-action:#2563eb;--color-primary-action-hover:#1d4ed8;--color-primary-soft:#eff6ff;--color-primary-hover-soft:#e8f0fe;--color-primary-border:#93c5fd;--color-primary-panel:#dbeafe;--color-primary-panel-border:#bfdbfe;--color-danger:#b91c1c;--color-danger-hover:#dc2626;--color-danger-soft:#fee2e2;--color-danger-border:#fecaca;--color-email-bg:lightsteelblue;--color-email-list-bg:#d7e4f4;--color-email-control-bg:lightslategray;--color-email-resizer-hover:#9fb4cd;--color-overlay-soft:#ffffff8c;--color-overlay-strong:#ffffffa6;--color-overlay-border:#ffffffb3;--color-panel-border:#1118271f;--shadow-subtle:0 1px 2px #0000000d;--space-1:4px;--space-2:6px;--space-3:8px;--space-4:10px;--space-5:12px;--space-6:14px;--space-7:16px;--space-8:18px;--space-9:24px;--space-10:48px;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-pill:999px;--shadow-sm:0 1px 2px #0f172a0a;--shadow-md:0 4px 12px #0f172a14;--u-card-shadow:0 1px 2px #0f172a0d;--text-xs:11px;--text-sm:12px;--text-md:13px;--text-lg:14px;--text-xl:15px;--text-2xl:16px;--text-3xl:18px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (max-width:1024px){:root{font-size:var(--text-2xl)}}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--social-bg:#2f303a80;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}#social .button-icon{filter:invert()brightness(2)}}.u-page-shell{width:100%;height:100%;min-height:0;padding:var(--space-8);box-sizing:border-box;background:var(--color-email-bg);overflow-y:auto}.u-flex-between{justify-content:space-between;align-items:center;display:flex}:where(.u-panel,.u-card){border-radius:var(--radius-md)}.u-panel{border:1px solid var(--color-overlay-border);background:var(--color-email-list-bg)}.u-card{background:var(--color-surface);border:1px solid var(--color-border);box-shadow:var(--u-card-shadow)}.u-card-interactive{cursor:pointer;transition:background .12s,border-color .12s,box-shadow .12s,transform .12s}.u-form-stack{gap:var(--space-5);grid-template-columns:1fr;display:grid}.u-form-label{gap:var(--space-2);flex-direction:column;display:flex}.u-form-label-text{color:var(--color-text-slate);font-size:var(--text-sm);font-weight:800}.u-form-control{box-sizing:border-box;width:100%;min-height:38px;padding:var(--space-3) var(--space-4);border:1px solid var(--color-input-border);border-radius:var(--radius-md);background:var(--color-surface);font:inherit}.u-form-control:focus{outline:2px solid var(--color-primary-panel-border);border-color:var(--color-primary-action)}:where(.u-btn-primary,.u-btn-danger-soft){border-radius:var(--radius-md);font-size:var(--text-md);cursor:pointer}.u-btn-primary{border:1px solid var(--color-primary-action);background:var(--color-primary-action);color:var(--color-surface);white-space:nowrap;font-weight:800}.u-btn-primary:disabled{background:var(--color-primary-border);border-color:var(--color-primary-border);cursor:default}.u-btn-danger-soft{border:1px solid var(--color-danger-border);background:var(--color-danger-soft);color:var(--color-danger-hover);font-weight:750}html,body{width:100%;height:100svh;margin:0;overflow:hidden}#root{text-align:center;box-sizing:border-box;flex-direction:column;width:100%;max-width:100%;height:100svh;margin:0 auto;display:flex;overflow:hidden}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{letter-spacing:-1.68px;margin:32px 0;font-size:56px}@media (max-width:1024px){h1{margin:20px 0;font-size:36px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:24px;line-height:118%}@media (max-width:1024px){h2{font-size:20px}}p{margin:0}code{font-family:var(--mono);color:var(--text-h);font-size:var(--text-xl);background:var(--code-bg);border-radius:4px;padding:4px 8px;line-height:135%;display:inline-flex}