:root{--bg-primary:#0f0f13;--bg-secondary:#1a1a24;--bg-tertiary:#24243a;--bg-hover:#2a2a40;--text-primary:#e8e8f0;--text-secondary:#9e9eb8;--text-muted:#6b6b8a;--accent:#6c5ce7;--accent-hover:#7c6cf7;--accent-light:#6c5ce726;--danger:#e74c5c;--success:#2ecc71;--border:#2a2a40;--sidebar-width:260px}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-primary);color:var(--text-primary);height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;overflow:hidden}#root{height:100vh}.login-page{background:linear-gradient(135deg,#0f0f13 0%,#1a1a2e 50%,#0f0f13 100%);justify-content:center;align-items:center;height:100vh;display:flex}.login-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:16px;width:100%;max-width:400px;padding:40px;box-shadow:0 20px 60px #0006}.login-header{text-align:center;margin-bottom:32px}.login-icon{margin-bottom:12px;font-size:48px}.login-header h1{margin-bottom:4px;font-size:24px;font-weight:600}.login-subtitle{color:var(--text-secondary);font-size:14px}.login-form{flex-direction:column;gap:16px;display:flex}.form-group{flex-direction:column;gap:6px;display:flex}.form-group label{color:var(--text-secondary);font-size:13px;font-weight:500}input,textarea,select{background:var(--bg-tertiary);border:1px solid var(--border);color:var(--text-primary);border-radius:8px;outline:none;width:100%;padding:10px 14px;font-size:14px;transition:border-color .2s}input:focus,textarea:focus,select:focus{border-color:var(--accent)}textarea{resize:vertical;font-family:inherit}.btn-primary{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:10px 20px;font-size:14px;font-weight:500;transition:all .2s}.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px)}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-outline{color:var(--text-secondary);border:1px solid var(--border);cursor:pointer;background:0 0;border-radius:8px;padding:8px 16px;font-size:13px;transition:all .2s}.btn-outline:hover{background:var(--bg-hover);color:var(--text-primary)}.btn-icon{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:6px;font-size:16px;transition:all .2s}.btn-icon:hover{background:var(--bg-hover);color:var(--text-primary)}.btn-sm{padding:6px 12px;font-size:12px}.btn-danger{color:var(--danger);cursor:pointer;background:0 0;border:1px solid #e74c5c4d;border-radius:6px;padding:4px 10px;font-size:12px;transition:all .2s}.btn-danger:hover{background:#e74c5c26}.btn-danger:disabled{opacity:.4;cursor:not-allowed}.error-message{color:var(--danger);background:#e74c5c26;border:1px solid #e74c5c33;border-radius:8px;padding:10px 14px;font-size:13px}.success-message{color:var(--success);background:#2ecc7126;border:1px solid #2ecc7133;border-radius:8px;padding:10px 14px;font-size:13px}.toast-message{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border);border-radius:8px;margin-bottom:16px;padding:12px 16px;font-size:13px}.loading,.empty-state{color:var(--text-muted);justify-content:center;align-items:center;padding:60px 20px;font-size:14px;display:flex}.mail-app{height:100vh;display:flex}.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);background:var(--bg-secondary);border-right:1px solid var(--border);flex-direction:column;display:flex;overflow-y:auto}.sidebar-header{border-bottom:1px solid var(--border);padding:20px 20px 16px}.sidebar-header h2{margin-bottom:2px;font-size:18px;font-weight:600}.sidebar-domain{color:var(--accent);font-size:12px}.sidebar-user{border-bottom:1px solid var(--border);align-items:center;gap:10px;padding:14px 20px;display:flex}.user-avatar{background:var(--accent);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:16px;font-weight:600;display:flex}.user-info{flex-direction:column;display:flex;overflow:hidden}.user-name{white-space:nowrap;text-overflow:ellipsis;font-size:14px;font-weight:500;overflow:hidden}.user-email{color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;font-size:12px;overflow:hidden}.sidebar-nav{flex-direction:column;flex:1;gap:2px;padding:8px;display:flex}.nav-item{color:var(--text-secondary);cursor:pointer;text-align:left;background:0 0;border:none;border-radius:8px;align-items:center;gap:10px;width:100%;padding:10px 12px;font-size:14px;transition:all .2s;display:flex}.nav-item:hover{background:var(--bg-hover);color:var(--text-primary)}.nav-item.active{background:var(--accent-light);color:var(--accent);font-weight:500}.nav-icon{text-align:center;width:24px;font-size:16px}.nav-label{flex:1}.badge{background:var(--accent);color:#fff;text-align:center;border-radius:10px;min-width:20px;padding:2px 8px;font-size:11px;font-weight:600}.sidebar-bottom{border-top:1px solid var(--border);flex-direction:column;gap:6px;padding:12px;display:flex}.sidebar-btn{width:100%}.main-content{flex-direction:column;flex:1;display:flex;overflow:hidden}.mail-list{flex-direction:column;height:100%;display:flex;overflow:hidden}.mail-list-header{border-bottom:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:center;padding:16px 24px;display:flex}.mail-list-header h3{font-size:16px;font-weight:600}.mail-list-actions{align-items:center;gap:8px;display:flex}.mail-items{flex:1;overflow-y:auto}.mail-item{cursor:pointer;border-bottom:1px solid #2a2a4080;padding:14px 24px;transition:background .15s}.mail-item:hover{background:var(--bg-hover)}.mail-item.selected{background:var(--accent-light);border-left:3px solid var(--accent)}.mail-item.unread{background:#6c5ce70d}.mail-item.unread .sender-name{color:var(--text-primary);font-weight:600}.mail-item.unread .subject-text{font-weight:600}.mail-item-sender{align-items:center;gap:8px;margin-bottom:4px;display:flex}.starred,.star-empty{cursor:pointer;font-size:14px}.star-empty{opacity:.3}.sender-name{color:var(--text-secondary);font-size:14px}.mail-item-subject{justify-content:space-between;align-items:center;margin-bottom:4px;display:flex}.subject-text{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;flex:1;margin-right:12px;font-size:14px;overflow:hidden}.mail-date{color:var(--text-muted);white-space:nowrap;font-size:12px}.mail-item-preview{color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;font-size:13px;overflow:hidden}.mail-detail{flex-direction:column;height:100%;padding:24px 32px;display:flex;overflow-y:auto}.mail-detail-header{flex-shrink:0;justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.mail-detail-subject{margin-bottom:16px;font-size:22px;font-weight:600}.mail-detail-meta{background:var(--bg-secondary);border:1px solid var(--border);border-radius:10px;margin-bottom:24px;padding:16px 20px}.meta-row{padding:6px 0;font-size:14px;display:flex}.meta-label{color:var(--text-muted);min-width:80px}.meta-value{color:var(--text-primary)}.mail-detail-body{color:var(--text-primary);flex:1;padding:8px 0;font-size:15px;line-height:1.7}.mail-detail-body p{margin-bottom:12px}.mail-detail-body img{border-radius:8px;max-width:100%}.compose-overlay{z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0009;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.compose-modal{background:var(--bg-secondary);border:1px solid var(--border);border-radius:16px;width:90%;max-width:600px;max-height:85vh;overflow-y:auto;box-shadow:0 24px 80px #00000080}.compose-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.compose-header h3{font-size:18px;font-weight:600}.compose-form{flex-direction:column;gap:16px;padding:24px;display:flex}.compose-actions{gap:10px;padding-top:8px;display:flex}.account-page{height:100vh;padding:32px;overflow-y:auto}.account-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.account-header h3{font-size:20px;font-weight:600}.account-section{background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;margin-bottom:20px;padding:24px}.account-section h4{color:var(--text-secondary);margin-bottom:16px;font-size:16px;font-weight:600}.create-account-form{flex-wrap:wrap;align-items:flex-end;gap:10px;display:flex}.create-account-form input{flex:1;min-width:180px}.create-account-form button{white-space:nowrap}.account-table{border-collapse:collapse;width:100%;font-size:14px}.account-table th{text-align:left;color:var(--text-muted);border-bottom:1px solid var(--border);padding:10px 12px;font-size:13px;font-weight:500}.account-table td{border-bottom:1px solid #2a2a4080;padding:10px 12px}.account-table tr:hover{background:var(--bg-hover)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}@media (width<=768px){.sidebar{width:60px;min-width:60px}.sidebar-header h2,.sidebar-domain,.sidebar-user .user-info,.nav-label,.badge,.sidebar-bottom{display:none}.mail-detail,.account-page{padding:16px}.create-account-form{flex-direction:column}}.login-footer{text-align:center;border-top:1px solid var(--border);color:var(--text-muted);margin-top:20px;padding-top:16px;font-size:13px}.link-btn{color:var(--accent);cursor:pointer;background:0 0;border:none;padding:0 4px;font-size:13px;font-weight:500;transition:color .2s}.link-btn:hover{color:var(--accent-hover);text-decoration:underline}.from-addr{color:var(--text-muted);font-size:12px;font-weight:400}.badge-external{color:var(--success);background:#2ecc7126;border-radius:10px;margin-left:4px;padding:2px 8px;font-size:11px;font-weight:600}.login-divider{color:var(--text-muted);align-items:center;gap:12px;margin:16px 0;font-size:13px;display:flex}.login-divider:before,.login-divider:after{content:"";background:var(--border);flex:1;height:1px}.google-btn-wrapper{justify-content:center;min-height:44px;display:flex}.google-user-info{background:var(--bg-tertiary);border-radius:10px;align-items:center;gap:12px;margin-bottom:16px;padding:12px;display:flex}.google-avatar{border-radius:50%;width:42px;height:42px}.google-user-info .text-muted{color:var(--text-muted);font-size:12px;display:block}.google-user-info strong{font-size:14px}.bind-actions{flex-direction:column;gap:8px;margin-top:8px;display:flex}.settings-panel{background:var(--bg-tertiary);border:1px solid var(--border);border-radius:10px;margin:0 8px 8px;animation:.2s slideDown;overflow:hidden}@keyframes slideDown{0%{opacity:0;max-height:0}to{opacity:1;max-height:200px}}.settings-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:10px 12px;display:flex}.settings-header h4{font-size:13px;font-weight:600}.settings-item{border-bottom:1px solid #2a2a4066;justify-content:space-between;align-items:center;padding:10px 12px;font-size:13px;display:flex}.settings-item:last-child{border-bottom:none}.badge-success{color:var(--success);background:#2ecc7126;border-radius:10px;padding:2px 8px;font-size:11px;font-weight:600}.badge-muted{color:var(--text-muted);font-size:12px}.settings-status{align-items:center;gap:8px;display:flex}.gh-btn-wrapper{justify-content:center;margin-top:4px;display:flex}.gh-login-btn{color:#fff;cursor:pointer;background:#2f2f2f;border:1px solid #555;border-radius:24px;justify-content:center;align-items:center;gap:8px;width:100%;max-width:280px;padding:10px 24px;font-size:14px;font-weight:500;transition:all .2s;display:flex}.gh-login-btn:hover{background:#444;border-color:#888}.gh-login-btn:disabled{opacity:.6;cursor:not-allowed}.about-page{background:linear-gradient(135deg,#0f0f13 0%,#1a1a2e 50%,#0f0f13 100%);height:100vh;overflow-y:auto}.about-hero{text-align:center;padding:60px 24px 40px}.about-hero h1{background:linear-gradient(135deg,#6c5ce7,#a29bfe);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:8px;font-size:36px;font-weight:700}.about-hero .tagline{color:var(--text-secondary);font-size:16px}.about-content{max-width:680px;margin:0 auto;padding:0 24px 40px}.about-section{background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;margin-bottom:16px;padding:24px}.about-section h2{color:var(--accent);margin-bottom:12px;font-size:18px;font-weight:600}.about-section h3{margin-bottom:8px;font-size:14px;font-weight:600}.about-section p,.about-section li{color:var(--text-secondary);margin-bottom:8px;font-size:14px;line-height:1.7}.about-section ul{padding-left:20px}.about-section li{margin-bottom:4px}.feature-grid{grid-template-columns:1fr 1fr;gap:10px;display:grid}.feature-card{background:var(--bg-tertiary);text-align:center;border-radius:10px;padding:16px}.feature-card .feature-icon{margin-bottom:6px;font-size:28px}.feature-card .feature-name{color:var(--text-primary);font-size:13px;font-weight:600}.feature-card .feature-desc{color:var(--text-muted);margin-top:2px;font-size:12px}@media (width<=768px){.about-hero{padding:32px 16px 24px}.about-hero h1{font-size:24px}.about-content{padding:0 12px 24px}.about-section{padding:16px}.feature-grid{grid-template-columns:1fr}.mail-app{flex-direction:column}.sidebar{border-right:none;border-bottom:1px solid var(--border);width:100%;min-width:0;max-height:56px;transition:max-height .3s;overflow:hidden}.sidebar.open{max-height:100vh;overflow-y:auto}.sidebar-header{display:none}.sidebar-header-mobile{cursor:pointer;justify-content:space-between;align-items:center;padding:12px 16px;display:flex!important}.sidebar-header-mobile .mobile-title{align-items:center;gap:8px;font-size:14px;font-weight:600;display:flex}.sidebar-header-mobile .mobile-hamburger{font-size:20px}.sidebar-user{padding:10px 16px}.sidebar-user .user-avatar{width:28px;height:28px;font-size:12px}.sidebar-nav{padding:4px 8px}.nav-item{padding:8px 10px;font-size:13px}.sidebar-bottom{flex-flow:wrap;padding:8px}.sidebar-btn{white-space:nowrap;flex:1;min-width:80px;padding:6px 8px;font-size:11px}.mail-list-header{padding:10px 12px}.mail-list-header h3{font-size:14px}.mail-item{padding:10px 12px}.mail-detail{padding:12px 16px}.mail-detail-subject{font-size:18px}.mail-detail-meta{padding:12px 16px}.meta-row{flex-wrap:wrap;font-size:13px}.compose-modal{width:96%;max-height:90vh}.compose-form,.account-page,.account-section{padding:16px}.create-account-form{flex-direction:column}.create-account-form input{min-width:auto}.account-table{font-size:12px}.account-table th,.account-table td{padding:6px 8px}.login-card{margin:0 12px;padding:24px 20px}.login-header h1{font-size:20px}.login-icon{font-size:36px}}.sidebar-header-mobile{display:none}