:root{--color-bg-primary: #0a0a0f;--color-bg-secondary: #12121a;--color-bg-tertiary: #1a1a26;--color-bg-elevated: #22222f;--color-bg-hover: #2a2a3a;--color-bg-active: #32324a;--color-bg-glass: rgba(25, 25, 40, .8);--color-surface: #16161f;--color-surface-hover: #1e1e2a;--color-surface-active: #262636;--color-border: rgba(255, 255, 255, .08);--color-border-hover: rgba(255, 255, 255, .15);--color-border-focus: #6366f1;--color-text-primary: #f0f0f5;--color-text-secondary: #a0a0b8;--color-text-tertiary: #6b6b85;--color-text-inverse: #0a0a0f;--color-accent: #c6242b;--color-accent-hover: #818cf8;--color-accent-subtle: rgba(99, 102, 241, .15);--color-accent-glow: rgba(99, 102, 241, .3);--color-success: #10b981;--color-success-subtle: rgba(16, 185, 129, .15);--color-warning: #f59e0b;--color-warning-subtle: rgba(245, 158, 11, .15);--color-danger: #ef4444;--color-danger-subtle: rgba(239, 68, 68, .15);--color-info: #3b82f6;--color-unread: #6366f1;--color-unread-dot: #818cf8;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-size-xs: .6875rem;--font-size-sm: .75rem;--font-size-base: .8125rem;--font-size-md: .875rem;--font-size-lg: 1rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 2rem;--font-weight-light: 300;--font-weight-regular: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-tight: 1.25;--line-height-normal: 1.5;--line-height-relaxed: 1.75;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .5);--shadow-glow: 0 0 20px var(--color-accent-glow);--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .35s cubic-bezier(.4, 0, .2, 1);--sidebar-width: 240px;--header-height: 56px;--reading-pane-min: 400px}[data-theme=light]{--color-bg-primary: #f8f9fc;--color-bg-secondary: #ffffff;--color-bg-tertiary: #f0f1f5;--color-bg-elevated: #ffffff;--color-bg-hover: #f0f1f5;--color-bg-active: #e8e9f0;--color-bg-glass: rgba(255, 255, 255, .85);--color-surface: #ffffff;--color-surface-hover: #f5f5fa;--color-surface-active: #eeeef5;--color-border: rgba(0, 0, 0, .08);--color-border-hover: rgba(0, 0, 0, .15);--color-text-primary: #1a1a2e;--color-text-secondary: #5a5a78;--color-text-tertiary: #8a8aa8;--color-text-inverse: #ffffff;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .06);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .12)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);font-size:var(--font-size-md);font-weight:var(--font-weight-regular);line-height:var(--line-height-normal);color:var(--color-text-primary);background-color:var(--color-bg-primary);overflow:hidden;height:100vh}#root{height:100vh;display:flex;flex-direction:column}a{color:var(--color-accent);text-decoration:none}a:hover{color:var(--color-accent-hover)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-text-tertiary);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-text-secondary)}.app-layout{display:flex;height:100vh;overflow:hidden}.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);background:var(--color-bg-secondary);border-right:1px solid var(--color-border);display:flex;flex-direction:column;overflow-y:auto}.sidebar-header{padding:var(--space-4) var(--space-4) var(--space-3);border-bottom:1px solid var(--color-border)}.sidebar-logo{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--color-text-primary);display:flex;align-items:center;gap:var(--space-2)}.sidebar-logo .logo-icon{width:28px;height:28px;background:linear-gradient(135deg,var(--color-accent),#a855f7);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:var(--font-size-md);color:#fff}.compose-btn{width:100%;padding:var(--space-3) var(--space-4);margin-top:var(--space-3);background:linear-gradient(135deg,var(--color-accent),#7c3aed);color:#fff;border:none;border-radius:var(--radius-lg);font-size:var(--font-size-md);font-weight:var(--font-weight-semibold);cursor:pointer;transition:all var(--transition-fast);display:flex;align-items:center;justify-content:center;gap:var(--space-2)}.compose-btn:hover{transform:translateY(-1px);box-shadow:var(--shadow-glow)}.compose-btn:active{transform:translateY(0)}.folder-nav{padding:var(--space-2) var(--space-2);flex:1}.folder-section-label{font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:var(--color-text-tertiary);text-transform:uppercase;letter-spacing:.08em;padding:var(--space-4) var(--space-3) var(--space-2)}.folder-item{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);font-size:var(--font-size-base);color:var(--color-text-secondary);position:relative}.folder-item:hover{background:var(--color-bg-hover);color:var(--color-text-primary)}.folder-item.active{background:var(--color-accent-subtle);color:var(--color-accent);font-weight:var(--font-weight-medium)}.folder-item .folder-icon{font-size:var(--font-size-lg);width:20px;text-align:center}.folder-item .folder-label{flex:1}.folder-item .badge{font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);background:var(--color-accent);color:#fff;padding:1px 6px;border-radius:var(--radius-full);min-width:18px;text-align:center}.main-content{flex:1;display:flex;flex-direction:column;overflow:hidden}.top-bar{height:var(--header-height);min-height:var(--header-height);display:flex;align-items:center;gap:var(--space-4);padding:0 var(--space-4);border-bottom:1px solid var(--color-border);background:var(--color-bg-secondary)}.top-bar-actions{display:flex;align-items:center;gap:var(--space-2);margin-left:auto}.search-container{flex:1;max-width:600px;position:relative}.search-input{width:100%;padding:var(--space-2) var(--space-3) var(--space-2) var(--space-10);background:var(--color-bg-tertiary);border:1px solid var(--color-border);border-radius:var(--radius-lg);color:var(--color-text-primary);font-size:var(--font-size-base);font-family:var(--font-family);transition:all var(--transition-fast);outline:none}.search-input::placeholder{color:var(--color-text-tertiary)}.search-input:focus{border-color:var(--color-border-focus);box-shadow:0 0 0 3px var(--color-accent-subtle);background:var(--color-bg-elevated)}.search-icon{position:absolute;left:var(--space-3);top:50%;transform:translateY(-50%);color:var(--color-text-tertiary);font-size:var(--font-size-md)}.email-list-container{flex:1;overflow-y:auto}.email-list-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-border);background:var(--color-bg-secondary)}.email-list-header h2{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold)}.email-item{display:flex;align-items:flex-start;gap:var(--space-3);padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-border);cursor:pointer;transition:background var(--transition-fast);position:relative}.email-item:hover{background:var(--color-surface-hover)}.email-item.active{background:var(--color-accent-subtle)}.email-item.unread{background:var(--color-bg-elevated)}.email-item.unread .email-sender,.email-item.unread .email-subject{font-weight:var(--font-weight-semibold);color:var(--color-text-primary)}.email-item.unread:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--color-unread);border-radius:0 2px 2px 0}.email-avatar{width:36px;height:36px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--color-accent),#a855f7);display:flex;align-items:center;justify-content:center;font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);color:#fff;flex-shrink:0;margin-top:2px}.email-content{flex:1;min-width:0}.email-header-row{display:flex;align-items:baseline;justify-content:space-between;gap:var(--space-2);margin-bottom:2px}.email-sender{font-size:var(--font-size-base);font-weight:var(--font-weight-regular);color:var(--color-text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sent-to-prefix{color:var(--color-text-tertiary);font-weight:var(--font-weight-regular)}.email-time{font-size:var(--font-size-xs);color:var(--color-text-tertiary);white-space:nowrap;flex-shrink:0}.email-subject{font-size:var(--font-size-base);color:var(--color-text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:2px}.email-snippet{font-size:var(--font-size-sm);color:var(--color-text-tertiary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:var(--line-height-normal)}.email-meta{display:flex;align-items:center;gap:var(--space-2);margin-top:2px}.attachment-indicator{font-size:var(--font-size-xs);color:var(--color-text-tertiary)}.reading-pane{flex:1;overflow-y:auto;background:var(--color-bg-primary);display:flex;flex-direction:column}.reading-pane-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--color-text-tertiary);gap:var(--space-4)}.reading-pane-empty .empty-icon{font-size:4rem;opacity:.3}.email-actions{display:flex;align-items:center;gap:2px;padding:var(--space-2) var(--space-3);border-bottom:1px solid var(--color-border);background:var(--color-bg-primary);flex-shrink:0;min-height:48px}.email-actions .btn-icon-action{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border:none;border-radius:50%;background:transparent;color:var(--color-text-secondary);cursor:pointer;transition:background var(--transition-fast),color var(--transition-fast);flex-shrink:0;padding:0}.email-actions .btn-icon-action:hover{background:var(--color-bg-hover);color:var(--color-text-primary)}.email-actions .btn-icon-action.active{color:var(--color-warning)}.email-actions .action-divider{width:1px;height:20px;background:var(--color-border);margin:0 var(--space-2);flex-shrink:0}.email-actions .action-spacer{flex:1}.email-actions .move-select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:transparent;border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-secondary);font-size:var(--font-size-xs);padding:var(--space-1) var(--space-3) var(--space-1) var(--space-2);cursor:pointer;height:32px;outline:none;transition:border-color var(--transition-fast)}.email-actions .move-select:hover{border-color:var(--color-text-tertiary)}.email-detail{max-width:960px;width:100%;margin:0 auto;padding:var(--space-5) var(--space-6);flex:1}.email-detail-header{margin-bottom:var(--space-5)}.email-detail-subject{font-size:1.375rem;font-weight:var(--font-weight-bold);color:var(--color-text-primary);margin-bottom:var(--space-5);line-height:1.3;letter-spacing:-.01em}.email-detail-meta{display:flex;align-items:flex-start;gap:var(--space-3);margin-bottom:var(--space-1)}.email-avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:var(--font-weight-semibold);font-size:var(--font-size-sm);color:#fff;flex-shrink:0;-webkit-user-select:none;user-select:none}.email-detail-sender-info{flex:1;min-width:0}.email-detail-sender-row{display:flex;align-items:baseline;gap:var(--space-2);flex-wrap:wrap}.email-detail-sender-name{font-weight:var(--font-weight-semibold);font-size:var(--font-size-base);color:var(--color-text-primary)}.email-detail-sender-email{color:var(--color-text-tertiary);font-size:var(--font-size-sm)}.email-detail-date{font-size:var(--font-size-xs);color:var(--color-text-tertiary);white-space:nowrap;flex-shrink:0;margin-top:2px}.email-detail-recipients{font-size:var(--font-size-xs);color:var(--color-text-tertiary);margin-top:2px;line-height:1.4}.email-body{padding:var(--space-5) 0;border-top:1px solid var(--color-border);color:var(--color-text-primary);line-height:var(--line-height-relaxed);font-size:var(--font-size-md)}.email-body img{max-width:100%;height:auto;border-radius:var(--radius-md)}.email-attachments{margin-top:var(--space-4);padding-top:var(--space-4);border-top:1px solid var(--color-border)}.email-attachments-label{font-size:var(--font-size-xs);font-weight:600;color:var(--color-text-tertiary);margin-bottom:var(--space-3);display:flex;align-items:center;gap:var(--space-2);text-transform:uppercase;letter-spacing:.04em}.email-attachments-grid{display:flex;flex-wrap:wrap;gap:var(--space-2)}.attachment-card{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-lg);font-size:var(--font-size-sm);color:var(--color-text-primary);cursor:pointer;transition:all var(--transition-fast);text-decoration:none;min-width:200px;max-width:280px}.attachment-card:hover{border-color:var(--color-accent);box-shadow:0 1px 4px #00000014;background:var(--color-bg-elevated)}.attachment-card-icon{width:36px;height:36px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;flex-shrink:0;background:var(--color-accent-subtle);color:var(--color-accent)}.attachment-card-info{min-width:0;flex:1}.attachment-card-name{font-weight:var(--font-weight-medium);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:var(--font-size-sm)}.attachment-card-size{font-size:var(--font-size-xs);color:var(--color-text-tertiary);margin-top:1px}.attachment-chip{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--font-size-sm);color:var(--color-text-secondary);cursor:pointer;transition:all var(--transition-fast);margin-right:var(--space-2);margin-bottom:var(--space-2)}.attachment-chip:hover{border-color:var(--color-accent);color:var(--color-accent);background:var(--color-accent-subtle)}.email-reply-footer{display:flex;gap:var(--space-2);padding:var(--space-4) 0;margin-top:var(--space-4);border-top:1px solid var(--color-border)}.email-reply-footer .btn-reply-action{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-5);border:1px solid var(--color-border);border-radius:18px;background:transparent;color:var(--color-text-secondary);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);cursor:pointer;transition:all var(--transition-fast);font-family:var(--font-family)}.email-reply-footer .btn-reply-action:hover{background:var(--color-bg-hover);border-color:var(--color-text-tertiary);color:var(--color-text-primary)}.compose-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:flex-end;justify-content:flex-end;z-index:1000;padding:var(--space-6)}.compose-modal{width:620px;max-height:80vh;background:var(--color-bg-secondary);border-radius:var(--radius-xl);border:1px solid var(--color-border);box-shadow:var(--shadow-lg);display:flex;flex-direction:column;overflow:hidden;animation:slideUp .3s cubic-bezier(.16,1,.3,1)}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.compose-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-border);background:var(--color-bg-tertiary);border-radius:var(--radius-xl) var(--radius-xl) 0 0}.compose-header h3{font-size:var(--font-size-md);font-weight:var(--font-weight-semibold)}.compose-fields{padding:var(--space-3) var(--space-4);display:flex;flex-direction:column;gap:var(--space-1);border-bottom:1px solid var(--color-border)}.compose-field{display:flex;align-items:center;gap:var(--space-2)}.compose-field label{font-size:var(--font-size-sm);color:var(--color-text-tertiary);width:50px;flex-shrink:0}.compose-field input{flex:1;background:transparent;border:none;color:var(--color-text-primary);font-size:var(--font-size-base);font-family:var(--font-family);padding:var(--space-2) 0;outline:none}.compose-body{flex:1;min-height:200px;overflow-y:auto}.compose-body textarea{width:100%;min-height:200px;padding:var(--space-4);background:transparent;border:none;color:var(--color-text-primary);font-size:var(--font-size-md);font-family:var(--font-family);line-height:var(--line-height-relaxed);resize:vertical;outline:none}.compose-footer{display:flex;align-items:center;justify-content:space-between;padding:var(--space-3) var(--space-4);border-top:1px solid var(--color-border)}.compose-header-actions{display:flex;align-items:center;gap:2px}.compose-overlay--minimized{background:transparent;-webkit-backdrop-filter:none;backdrop-filter:none;pointer-events:none}.compose-overlay--minimized .compose-modal{pointer-events:auto}.compose-modal--minimized{position:fixed;bottom:0;right:var(--space-6);width:320px;max-height:none;border-radius:var(--radius-xl) var(--radius-xl) 0 0;box-shadow:var(--shadow-lg);animation:none}.compose-modal--minimized .compose-header{border-bottom:none}.profile-menu-container{position:relative;flex-shrink:0;margin-left:auto}.profile-avatar-btn{width:36px;height:36px;border-radius:50%;background:var(--color-accent);color:#fff;font-weight:var(--font-weight-semibold);font-size:var(--font-size-sm);display:flex;align-items:center;justify-content:center;border:none;cursor:pointer;-webkit-user-select:none;user-select:none;transition:box-shadow var(--transition-fast),transform var(--transition-fast)}.profile-avatar-btn:hover{box-shadow:0 0 0 3px var(--color-primary-light);transform:scale(1.05)}.profile-popover{position:absolute;top:calc(100% + 8px);right:0;width:280px;background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);z-index:1100;overflow:hidden;animation:slideUp .2s cubic-bezier(.16,1,.3,1)}.profile-popover-header{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-4)}.profile-popover-avatar{width:44px;height:44px;border-radius:50%;background:var(--color-accent);color:#fff;font-weight:var(--font-weight-semibold);font-size:var(--font-size-md);display:flex;align-items:center;justify-content:center;flex-shrink:0}.profile-popover-info{min-width:0}.profile-popover-name{font-weight:var(--font-weight-semibold);font-size:var(--font-size-base);color:var(--color-text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.profile-popover-email{display:flex;align-items:center;gap:var(--space-1);font-size:var(--font-size-sm);color:var(--color-text-tertiary);margin-top:2px}.profile-popover-email span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.profile-copy-btn{background:none;border:none;color:var(--color-text-tertiary);cursor:pointer;padding:2px;border-radius:var(--radius-sm);display:flex;align-items:center;flex-shrink:0;transition:color var(--transition-fast),background var(--transition-fast)}.profile-copy-btn:hover{color:var(--color-primary);background:var(--color-bg-tertiary)}.profile-popover-divider{height:1px;background:var(--color-border);margin:0}.profile-popover-item{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-4);font-size:var(--font-size-sm);color:var(--color-text-primary);text-decoration:none;border:none;background:none;width:100%;cursor:pointer;transition:background var(--transition-fast)}.profile-popover-item:hover{background:var(--color-bg-tertiary)}.profile-popover-item.logout{color:var(--color-error, #d93025)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);border:1px solid transparent;border-radius:var(--radius-md);font-size:var(--font-size-base);font-weight:var(--font-weight-medium);font-family:var(--font-family);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap}.btn-primary{background:linear-gradient(135deg,var(--color-accent),#7c3aed);color:#fff;border:none}.btn-primary:hover{box-shadow:var(--shadow-glow);transform:translateY(-1px)}.btn-secondary{background:var(--color-bg-tertiary);color:var(--color-text-secondary);border-color:var(--color-border)}.btn-secondary:hover{background:var(--color-bg-hover);color:var(--color-text-primary)}.btn-ghost{background:transparent;color:var(--color-text-secondary)}.btn-ghost:hover{background:var(--color-bg-hover);color:var(--color-text-primary)}.btn-danger{background:var(--color-danger);color:#fff;border:none}.btn-danger:hover{background:#dc2626}.btn-sm{padding:var(--space-1) var(--space-3);font-size:var(--font-size-sm)}.btn-icon{padding:var(--space-2);border-radius:var(--radius-md)}.form-group{display:flex;flex-direction:column;gap:var(--space-2)}.form-label{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary)}.form-input{padding:var(--space-3) var(--space-4);background:var(--color-bg-tertiary);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-primary);font-size:var(--font-size-md);font-family:var(--font-family);transition:all var(--transition-fast);outline:none}.form-input:focus{border-color:var(--color-border-focus);box-shadow:0 0 0 3px var(--color-accent-subtle)}.form-input::placeholder{color:var(--color-text-tertiary)}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--color-bg-primary);position:relative;overflow:hidden}.login-bg-gradient{position:absolute;width:600px;height:600px;border-radius:50%;background:radial-gradient(circle,var(--color-accent-glow) 0%,transparent 70%);top:-200px;right:-200px;animation:float 8s ease-in-out infinite}@keyframes float{0%,to{transform:translate(0)}50%{transform:translate(-30px,20px)}}.login-card{width:400px;padding:var(--space-8);background:var(--color-bg-glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);position:relative;z-index:1}.login-card h1{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);margin-bottom:var(--space-2);background:linear-gradient(135deg,var(--color-text-primary),var(--color-accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.login-card p{color:var(--color-text-tertiary);margin-bottom:var(--space-6);font-size:var(--font-size-md)}.login-form{display:flex;flex-direction:column;gap:var(--space-4)}.login-error{padding:var(--space-3);background:var(--color-danger-subtle);border:1px solid rgba(239,68,68,.3);border-radius:var(--radius-md);color:var(--color-danger);font-size:var(--font-size-sm)}.admin-layout{display:flex;height:100vh;background:var(--color-bg-primary)}.admin-sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);display:flex;flex-direction:column;background:var(--color-bg-secondary);border-right:1px solid var(--color-border);overflow-y:auto}.admin-sidebar-header{padding:var(--space-4);border-bottom:1px solid var(--color-border)}.admin-sidebar-header .logo{display:flex;align-items:center;gap:var(--space-2);font-weight:var(--font-weight-bold);font-size:var(--font-size-lg);color:var(--color-text-primary)}.admin-sidebar-header .logo-icon{width:32px;height:32px;border-radius:var(--radius-md);background:var(--color-accent);color:#fff;display:flex;align-items:center;justify-content:center}.admin-nav{flex:1;padding:var(--space-3);display:flex;flex-direction:column;gap:var(--space-1)}.admin-nav-item{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);color:var(--color-text-secondary);text-decoration:none;font-size:var(--font-size-base);font-weight:var(--font-weight-medium);transition:all var(--transition-fast);cursor:pointer;border:none;background:none;width:100%}.admin-nav-item:hover{background:var(--color-surface-hover);color:var(--color-text-primary)}.admin-nav-item.active{background:var(--color-accent-subtle);color:var(--color-accent);font-weight:var(--font-weight-semibold)}.admin-sidebar-footer{padding:var(--space-3);border-top:1px solid var(--color-border);margin-top:auto}.admin-nav-item.back-to-mail{color:var(--color-text-tertiary)}.admin-nav-item.back-to-mail:hover{color:var(--color-accent)}.admin-main{flex:1;display:flex;flex-direction:column;overflow:hidden}.admin-top-bar{height:var(--header-height);min-height:var(--header-height);display:flex;align-items:center;padding:0 var(--space-4);border-bottom:1px solid var(--color-border);background:var(--color-bg-secondary)}.admin-content{flex:1;overflow-y:auto}.admin-page{padding:var(--space-6)}.admin-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-6)}.admin-header h1{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-4);margin-bottom:var(--space-8)}.stat-card{padding:var(--space-5);background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-lg);transition:all var(--transition-fast)}.stat-card:hover{border-color:var(--color-border-hover);transform:translateY(-2px);box-shadow:var(--shadow-md)}.stat-card .stat-value{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);background:linear-gradient(135deg,var(--color-accent),#a855f7);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.stat-card .stat-label{font-size:var(--font-size-sm);color:var(--color-text-tertiary);margin-top:var(--space-1)}.data-table{width:100%;border-collapse:collapse;background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden}.data-table th{padding:var(--space-3) var(--space-4);text-align:left;font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-text-tertiary);text-transform:uppercase;letter-spacing:.05em;background:var(--color-bg-tertiary);border-bottom:1px solid var(--color-border)}.data-table td{padding:var(--space-3) var(--space-4);font-size:var(--font-size-base);border-bottom:1px solid var(--color-border);color:var(--color-text-secondary)}.data-table tr:last-child td{border-bottom:none}.data-table tr:hover td{background:var(--color-surface-hover)}.toast-container{position:fixed;top:var(--space-4);right:var(--space-4);z-index:2000;display:flex;flex-direction:column;gap:var(--space-2)}.toast{padding:var(--space-3) var(--space-4);background:var(--color-bg-glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:var(--space-3);min-width:320px;animation:toastIn .3s cubic-bezier(.16,1,.3,1)}@keyframes toastIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.toast-new-email{border-left:3px solid var(--color-accent)}.toast .toast-title{font-weight:var(--font-weight-semibold);font-size:var(--font-size-base);color:var(--color-text-primary)}.toast .toast-body{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1500}.modal{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);width:480px;max-height:80vh;overflow-y:auto;animation:modalIn .25s cubic-bezier(.16,1,.3,1)}@keyframes modalIn{0%{transform:scale(.95);opacity:0}to{transform:scale(1);opacity:1}}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4) var(--space-5);border-bottom:1px solid var(--color-border)}.modal-header h2{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold)}.modal-body{padding:var(--space-5)}.modal-footer{display:flex;justify-content:flex-end;gap:var(--space-2);padding:var(--space-4) var(--space-5);border-top:1px solid var(--color-border)}.input-with-suffix{display:flex;align-items:center;border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden;transition:border-color var(--transition-fast)}.input-with-suffix:focus-within{border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-accent-glow)}.input-with-suffix .form-input{border:none;border-radius:0;flex:1}.input-with-suffix .form-input:focus{box-shadow:none}.input-suffix{padding:0 var(--space-3);background:var(--color-bg-tertiary);color:var(--color-text-tertiary);font-size:var(--font-size-base);font-weight:var(--font-weight-medium);white-space:nowrap;height:100%;display:flex;align-items:center;border-left:1px solid var(--color-border);-webkit-user-select:none;user-select:none}.form-hint{font-size:var(--font-size-sm);color:var(--color-text-tertiary);margin-top:var(--space-1)}.creds-card{background:var(--color-bg-tertiary);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden}.creds-row{display:flex;align-items:center;padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-border);gap:var(--space-3)}.creds-row:last-child{border-bottom:none}.creds-label{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-text-tertiary);text-transform:uppercase;letter-spacing:.05em;min-width:90px;flex-shrink:0}.creds-value{font-size:var(--font-size-base);color:var(--color-text-primary);font-weight:var(--font-weight-medium);word-break:break-all}.loading-spinner{display:inline-block;width:20px;height:20px;border:2px solid var(--color-text-primary);border-top-color:var(--color-accent);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.skeleton{background:linear-gradient(90deg,var(--color-bg-tertiary) 25%,var(--color-bg-hover) 50%,var(--color-bg-tertiary) 75%);background-size:200% 100%;animation:shimmer 1.5s ease-in-out infinite;border-radius:var(--radius-sm)}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-16) var(--space-4);text-align:center;color:var(--color-text-tertiary)}.empty-state .empty-icon{font-size:3rem;margin-bottom:var(--space-4);opacity:.4}.empty-state h3{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);margin-bottom:var(--space-2);color:var(--color-text-secondary)}.empty-state p{font-size:var(--font-size-base);max-width:300px}@media(max-width:768px){.sidebar{position:fixed;left:-100%;top:0;bottom:0;z-index:100;transition:left var(--transition-base)}.sidebar.open{left:0}.compose-modal{width:100%;max-height:100vh;border-radius:0}}.app-loading{display:flex;align-items:center;justify-content:center;height:100vh;background:var(--color-bg-primary)}.btn-block{width:100%;justify-content:center;padding:var(--space-3)}.btn-action{padding:var(--space-4) var(--space-6)}.page-subtitle{color:var(--color-text-tertiary);margin-top:var(--space-1);font-size:var(--font-size-sm)}.field-hint{color:var(--color-text-tertiary);font-size:var(--font-size-xs);margin-top:var(--space-1)}.sidebar-footer{padding:var(--space-3) var(--space-4);border-top:1px solid var(--color-border);display:flex;flex-direction:column;gap:var(--space-1)}.sidebar-link{justify-content:flex-start;gap:var(--space-2)}.sidebar-user{font-size:var(--font-size-xs);color:var(--color-text-tertiary);padding:var(--space-2) var(--space-2) 0;overflow:hidden;text-overflow:ellipsis}.folder-section-label{display:flex;align-items:center;justify-content:space-between}.folder-add{background:none;border:none;color:var(--color-text-tertiary);cursor:pointer;font-size:16px;line-height:1;padding:2px 6px;border-radius:var(--radius-sm)}.folder-add:hover{background:var(--color-surface-hover);color:var(--color-text-primary)}.folder-add-form{padding:0 var(--space-3) var(--space-2)}.folder-add-form .form-input{font-size:var(--font-size-sm);padding:var(--space-2)}.folder-item{position:relative}.folder-delete{background:none;border:none;color:var(--color-text-tertiary);cursor:pointer;opacity:0;padding:2px;border-radius:var(--radius-sm);transition:opacity var(--transition-fast)}.folder-item:hover .folder-delete{opacity:1}.folder-delete:hover{color:var(--color-danger);background:var(--color-danger-subtle, rgba(239, 68, 68, .15))}.mail-panes{display:flex;flex:1;overflow:hidden}.list-pane{width:100%;overflow:hidden;display:flex;flex-direction:column}.list-pane.narrow{width:380px;min-width:380px;border-right:1px solid var(--color-border)}.detail-pane{flex:1;overflow:hidden;min-width:0}.email-list-container{display:flex;flex-direction:column;height:100%;overflow:hidden}.email-list-scroll{flex:1;overflow-y:auto}.email-list-header-actions{display:flex;align-items:center;gap:var(--space-3)}.email-list-count{font-size:var(--font-size-sm);color:var(--color-text-tertiary);white-space:nowrap}.view-toggle{display:inline-flex;border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden}.view-toggle button{background:none;border:none;color:var(--color-text-secondary);cursor:pointer;font-size:var(--font-size-xs);font-weight:500;padding:4px 10px;transition:background var(--transition-fast)}.view-toggle button:hover{background:var(--color-surface-hover)}.view-toggle button.active{background:var(--color-accent-subtle);color:var(--color-accent)}.pagination{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);padding:var(--space-3) var(--space-4);border-top:1px solid var(--color-border);background:var(--color-bg-secondary)}.pagination-info{font-size:var(--font-size-xs);color:var(--color-text-tertiary)}.star-indicator{color:var(--color-warning);display:inline-flex;align-items:center}.thread-count{color:var(--color-text-tertiary);font-weight:400}.email-body-frame{width:100%;height:60vh;min-height:280px;border:none;display:block;background:transparent;border-radius:var(--radius-sm);color-scheme:light dark}.thread-message .email-body-frame{height:50vh;min-height:240px}.signature-preview .email-body-frame{height:120px;min-height:0}.email-attachments-label{font-size:var(--font-size-sm);font-weight:600;color:var(--color-text-secondary);margin-bottom:var(--space-3);display:flex;align-items:center;gap:var(--space-2)}.move-select{background:var(--color-bg-tertiary);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-secondary);font-size:var(--font-size-xs);padding:4px 8px;cursor:pointer}.thread-messages{display:flex;flex-direction:column;gap:var(--space-3);margin-top:var(--space-4)}.thread-message{border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;background:var(--color-surface)}.thread-message.open{border-color:var(--color-border-hover)}.thread-message-header{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);cursor:pointer}.thread-message-header:hover{background:var(--color-surface-hover)}.thread-message.collapsed .email-snippet{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.thread-message .email-body{padding:0 var(--space-4) var(--space-4)}.thread-message-count{font-size:var(--font-size-xs);color:var(--color-text-tertiary)}.unread-dot{display:inline-block;width:7px;height:7px;margin-left:6px;border-radius:50%;background:var(--color-accent)}.compose-attachments{padding:var(--space-2) var(--space-4);border-top:1px solid var(--color-border);display:flex;flex-wrap:wrap;gap:var(--space-2)}.attachment-remove{background:none;border:none;cursor:pointer;color:var(--color-text-tertiary);padding:0;display:inline-flex;align-items:center}.attachment-remove:hover{color:var(--color-danger)}.attachment-chip.attachment-failed{border-color:var(--color-danger);color:var(--color-danger)}.settings-grid{display:grid;gap:var(--space-6);grid-template-columns:repeat(auto-fit,minmax(340px,1fr));align-items:start}.settings-card{background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6);display:flex;flex-direction:column;gap:var(--space-3)}.settings-card h2{margin:0}.settings-form{display:flex;flex-direction:column;gap:var(--space-4)}.signature-editor{font-family:var(--font-family-mono, monospace);font-size:var(--font-size-sm);resize:vertical;min-height:140px}.signature-preview{border:1px dashed var(--color-border);border-radius:var(--radius-md);padding:var(--space-3);min-height:60px;color:var(--color-text-secondary);font-size:var(--font-size-sm);overflow-x:auto}.signature-preview-label{font-size:var(--font-size-xs);text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-tertiary);margin-bottom:var(--space-2)}.role-badge{padding:2px 8px;border-radius:var(--radius-full);font-size:var(--font-size-xs);font-weight:600;background:var(--color-bg-tertiary);color:var(--color-text-secondary)}.role-badge.admin{background:var(--color-accent-subtle);color:var(--color-accent)}.role-badge.super_admin{background:#fef3c7;color:#b45309}.cell-strong{font-weight:500;color:var(--color-text-primary)}.cell-actions{display:flex;gap:var(--space-1)}.tag-self{margin-left:var(--space-2);padding:1px 6px;border-radius:var(--radius-full);font-size:var(--font-size-xs);background:var(--color-bg-tertiary);color:var(--color-text-tertiary)}.checkbox-row{display:flex;align-items:center;gap:var(--space-2);font-size:var(--font-size-sm);color:var(--color-text-secondary);cursor:pointer}.import-report{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-bg-elevated);padding:var(--space-4);margin-bottom:var(--space-5);max-height:300px;overflow-y:auto}.import-report-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-2)}.import-report ul{list-style:none;margin:0;padding:0;font-size:var(--font-size-sm)}.import-report li{padding:2px 0;color:var(--color-text-secondary)}.import-report li.ok{color:var(--color-success)}.import-report li.skipped{color:var(--color-warning)}@media(max-width:900px){.list-pane.narrow{display:none}.detail-pane{width:100%}.settings-grid{grid-template-columns:1fr}}@media(max-width:640px){.sidebar,.email-list-header-actions .email-list-count{display:none}}.rich-editor{display:flex;flex-direction:column;height:100%;min-height:0}.rich-editor-toolbar{display:flex;align-items:center;gap:2px;padding:var(--space-2) var(--space-4);border-bottom:1px solid var(--color-border);flex-wrap:wrap}.rich-editor-toolbar button{background:none;border:1px solid transparent;border-radius:var(--radius-sm);color:var(--color-text-secondary);cursor:pointer;font-size:var(--font-size-xs);min-width:28px;padding:4px 8px;display:inline-flex;align-items:center;justify-content:center}.rich-editor-toolbar button:hover{background:var(--color-surface-hover);color:var(--color-text-primary);border-color:var(--color-border)}.rich-editor-surface{flex:1;overflow-y:auto;padding:var(--space-4);outline:none;color:var(--color-text-primary);font-size:var(--font-size-base);line-height:1.6;min-height:180px}.rich-editor-surface:empty:before{content:attr(data-placeholder);color:var(--color-text-tertiary);pointer-events:none}.rich-editor-surface blockquote{border-left:3px solid #dadce0;color:var(--color-text-secondary);margin:var(--space-3) 0 0;padding:0 0 0 var(--space-3)}.rich-editor-surface blockquote img{max-width:100%;height:auto}.rich-editor-surface .gmail_quote{margin-top:var(--space-3);color:var(--color-text-secondary)}.rich-editor-surface a{color:var(--color-accent)}.rich-editor-surface ul,.rich-editor-surface ol{padding-left:var(--space-5)}.impersonation-banner{position:fixed;bottom:0;left:0;right:0;z-index:9999;background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff;box-shadow:0 -4px 20px #0000004d;animation:slideUpBanner .3s ease-out}@keyframes slideUpBanner{0%{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}.impersonation-banner-content{display:flex;align-items:center;justify-content:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);font-size:var(--font-size-sm);font-weight:500}.impersonation-banner-content strong{font-weight:700}.impersonation-switch-back{display:inline-flex;align-items:center;gap:var(--space-1);padding:var(--space-1) var(--space-3);border:2px solid rgba(255,255,255,.6);border-radius:var(--radius-md);background:#ffffff26;color:#fff;font-size:var(--font-size-sm);font-weight:600;cursor:pointer;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);transition:all .2s ease}.impersonation-switch-back:hover{background:#ffffff4d;border-color:#fff;transform:translateY(-1px)}.impersonation-switch-back:active{transform:translateY(0)}.btn-switch{color:var(--color-warning, #f59e0b)!important}.btn-switch:hover:not(:disabled){background:#f59e0b1a!important}