:root{--bg-dark:#f9fafb;--bg-panel:#fff;--bg-hover:#f3f4f6;--text-main:#111827;--text-muted:#6b7280;--accent:#059669;--accent-light:#dcfce7;--accent-hover:#047857;--border:#f3f4f6;--border-strong:#e5e7eb;--danger:#ef4444;--success:#10b981}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-dark);color:var(--text-main);-webkit-font-smoothing:antialiased;height:100vh;font-family:Inter,sans-serif;overflow:hidden}.app-container{width:100vw;height:100vh;display:flex}.sidebar{background-color:var(--bg-panel);border-right:1px solid var(--border);flex-direction:column;width:260px;display:flex}.sidebar-header{border-bottom:1px solid var(--border);color:var(--text-main);align-items:center;gap:12px;padding:24px 20px;font-size:1.1rem;font-weight:600;display:flex}.sidebar-content{flex:1;padding:20px 12px;overflow-y:auto}.account-item{cursor:pointer;border-radius:6px;justify-content:space-between;align-items:center;margin-bottom:4px;padding:10px 14px;transition:all .15s;display:flex}.account-item:hover{background-color:var(--bg-hover)}.account-item.active{border:1px solid var(--border);background-color:#fff;font-weight:500;box-shadow:0 1px 3px #0000000d}.account-info{color:var(--text-main);align-items:center;gap:10px;display:flex;overflow:hidden}.account-email{white-space:nowrap;text-overflow:ellipsis;font-size:.85rem;overflow:hidden}.remove-btn{color:var(--text-muted);cursor:pointer;opacity:0;background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;padding:4px;transition:all .2s;display:flex}.account-item:hover .remove-btn{opacity:1}.remove-btn:hover{color:var(--danger);background-color:#ef44441a}.sidebar-footer{border-top:1px solid var(--border);padding:20px}.add-btn{background-color:var(--bg-dark);width:100%;color:var(--text-main);border:1px solid var(--border);cursor:pointer;border-radius:6px;justify-content:center;align-items:center;gap:8px;padding:12px;font-size:.9rem;font-weight:500;transition:all .2s;display:flex;box-shadow:0 1px 2px #0000000d}.add-btn:hover:not(:disabled){border-color:var(--text-muted);background-color:var(--bg-hover)}.add-btn:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}.email-list-pane{background-color:var(--bg-dark);border-right:1px solid var(--border);flex-direction:column;width:380px;min-width:380px;display:flex}.list-header{border-bottom:1px solid var(--border);padding:24px}.list-header h2{letter-spacing:-.02em;margin-bottom:16px;font-size:1.15rem;font-weight:600}.search-box{background-color:var(--bg-dark);border:1px solid var(--border-strong);border-radius:12px;align-items:center;gap:12px;padding:12px 16px;transition:all .2s;display:flex}.search-box input{color:var(--text-main);background:0 0;border:none;outline:none;width:100%;font-size:.9rem}.search-box input::placeholder{color:var(--text-muted)}.search-box:focus-within{border-color:var(--text-main)}.emails-container{flex:1;overflow-y:auto}.email-item{border-bottom:1px solid var(--border);cursor:pointer;padding:16px 24px;transition:all .2s cubic-bezier(.4,0,.2,1)}.email-item:hover{background-color:var(--bg-panel)}.email-item.active{background-color:var(--accent-light);box-shadow:inset 4px 0 0 var(--accent);border-bottom:1px solid #0000}.email-sender{color:var(--text-main);justify-content:space-between;margin-bottom:6px;font-size:.9rem;font-weight:600;display:flex}.email-time{color:var(--text-muted);font-size:.75rem;font-weight:400}.email-subject{color:var(--text-main);margin-bottom:8px;font-size:.9rem;font-weight:500}.email-preview{color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;font-size:.85rem;line-height:1.4;overflow:hidden}.email-detail-pane{background-color:var(--bg-dark);flex-direction:column;flex:1;min-width:0;display:flex}.empty-state{color:var(--text-muted);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:16px;display:flex}.detail-header{border-bottom:1px solid var(--border);padding:40px 40px 30px}.detail-subject{letter-spacing:-.01em;color:var(--text-main);margin-bottom:24px;font-size:1.75rem;font-weight:700;line-height:1.3}.detail-meta{align-items:center;gap:16px;display:flex}.avatar{background-color:var(--accent);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:44px;height:44px;font-size:1.1rem;font-weight:500;display:flex}.meta-info{flex-direction:column;display:flex}.meta-sender{color:var(--text-main);font-size:1rem;font-weight:600}.meta-recipient{color:var(--text-muted);margin-top:4px;font-size:.9rem}.detail-body{color:var(--text-main);flex:1;max-width:800px;padding:40px;font-size:.95rem;line-height:1.7;overflow-y:auto}.modal-overlay{z-index:1000;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background-color:#0006;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal-content{background-color:var(--bg-dark);border:1px solid var(--border);border-radius:8px;width:420px;padding:30px;animation:.2s ease-out slideUp;box-shadow:0 20px 40px #0000001a}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}.modal-title{letter-spacing:-.01em;margin-bottom:24px;font-size:1.15rem;font-weight:600}.input-group{margin-bottom:24px}.input-group label{color:var(--text-main);margin-bottom:8px;font-size:.85rem;font-weight:500;display:block}.input-group input{border:1px solid var(--border);background-color:var(--bg-dark);width:100%;color:var(--text-main);border-radius:6px;outline:none;padding:12px 14px;font-size:.95rem;transition:border-color .2s,box-shadow .2s}.input-group input:focus{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}.modal-actions{justify-content:flex-end;gap:12px;display:flex}.btn{cursor:pointer;border:none;border-radius:6px;padding:10px 18px;font-size:.9rem;font-weight:500;transition:all .2s}.btn-cancel{color:var(--text-muted);background-color:#0000}.btn-cancel:hover{color:var(--text-main);background-color:var(--bg-hover)}.btn-primary{background-color:var(--accent);color:#fff}.btn-primary:hover{background-color:var(--accent-hover)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#9ca3af}@keyframes pulse{0%,to{opacity:1}50%{opacity:.3}}.animate-pulse{animation:2s cubic-bezier(.4,0,.6,1) infinite pulse}