:root{--color-primary: #6d4aff;--color-primary-light: #8a6dff;--color-primary-lighter: #e8e0ff;--color-primary-dark: #5a39d6;--color-primary-darker: #482cbb;--color-success: #00a74a;--color-success-light: #e8f5e9;--color-warning: #ff9800;--color-warning-light: #fff3e0;--color-danger: #d63031;--color-danger-light: #ffebee;--color-background: #f6f6f7;--color-background-secondary: #f2f2f2;--color-surface: #ffffff;--color-surface-elevated: #ffffff;--color-border: #e8e8eb;--color-border-light: #f0f0f0;--color-border-strong: #d8d8db;--color-text-primary: #1a1a1b;--color-text-secondary: #65676b;--color-text-muted: #95969d;--color-text-disabled: #c7c8cc;--color-text-inverse: #ffffff;--color-text-link: #6d4aff;--color-unread: rgba(109, 74, 255, .08);--color-selected: rgba(109, 74, 255, .12);--color-hover: rgba(0, 0, 0, .03);--color-active: rgba(0, 0, 0, .06);--space-xs: 4px;--space-sm: 8px;--space-md: 12px;--space-lg: 16px;--space-xl: 20px;--space-2xl: 24px;--space-3xl: 32px;--space-4xl: 40px;--space-5xl: 48px;--size-sidebar: 280px;--size-maillist: 400px;--size-header: 60px;--size-compose-button: 56px;--size-avatar-xs: 24px;--size-avatar-sm: 32px;--size-avatar-md: 40px;--size-icon-xs: 12px;--size-icon-sm: 14px;--size-icon-md: 16px;--size-icon-lg: 18px;--size-icon-xl: 20px;--size-icon-2xl: 24px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-size-xs: 11px;--font-size-sm: 12px;--font-size-base: 14px;--font-size-lg: 16px;--font-size-xl: 18px;--font-size-2xl: 20px;--font-size-3xl: 24px;--font-weight-light: 300;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-tight: 1.3;--line-height-normal: 1.5;--line-height-relaxed: 1.6;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .07), 0 1px 3px rgba(0, 0, 0, .05);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .1);--shadow-xl: 0 15px 35px rgba(0, 0, 0, .15);--transition-fast: all .15s ease;--transition-normal: all .2s ease;--transition-slow: all .3s ease;--z-dropdown: 100;--z-sticky: 200;--z-modal-backdrop: 300;--z-modal: 400;--z-tooltip: 500;--z-notification: 600;--default-button-padding: var(--space-sm) var(--space-md);--default-input-padding: var(--space-sm) var(--space-md);--default-border-radius: var(--radius-md);--default-border: 1px solid var(--color-border)}:root{--sidebar-item-height: 36px;--sidebar-section-padding: var(--space-lg);--mail-item-height: 56px;--mail-item-padding: var(--space-md) var(--space-lg);--compose-button-shadow: 0 4px 12px rgba(109, 74, 255, .3);--compose-button-hover-shadow: 0 6px 16px rgba(109, 74, 255, .4);--selection-primary: var(--color-primary-light);--selection-unread: var(--color-unread);--status-starred: #ff9800;--status-important: 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var(--color-primary);outline-offset:2px}.icon-button{width:var(--size-icon-xl);height:var(--size-icon-xl);padding:var(--space-xs);border-radius:var(--radius-sm);color:var(--color-text-muted)}.icon-button:hover{background:var(--color-hover);color:var(--color-text-primary)}.icon-button.active,.icon-button.selected{background:var(--color-primary-lighter);color:var(--color-primary)}.btn-primary{padding:var(--space-sm) var(--space-xl);background:var(--color-primary);color:var(--color-text-inverse);border-radius:var(--radius-lg);font-weight:var(--font-weight-medium);font-size:var(--font-size-sm);box-shadow:var(--shadow-sm)}.btn-primary:hover:not(:disabled){background:var(--color-primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-primary:active:not(:disabled){background:var(--color-primary-darker);transform:translateY(0)}.btn-secondary{padding:var(--space-sm) 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fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes slideDown{0%{opacity:0;transform:translateY(-16px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes spin{to{transform:rotate(360deg)}}.animate-fade-in{animation:fadeIn .2s ease-out}.animate-slide-up{animation:slideUp .3s ease-out}.animate-slide-down{animation:slideDown .3s ease-out}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--color-text-muted)}::selection{background:var(--color-primary-lighter);color:var(--color-primary-darker)}@media (max-width: 1200px){:root{--size-maillist: 350px}}@media (max-width: 1024px){:root{--size-sidebar: 280px;--size-maillist: 300px}}@media (max-width: 768px){:root{--size-sidebar: 280px;--size-maillist: 100%}.header{padding:0 var(--space-md);gap:var(--space-md)}.header-left{gap:var(--space-sm)}}.logo{display:flex;align-items:center;gap:var(--space-sm);font-weight:var(--font-weight-bold);font-size:var(--font-size-lg);color:var(--color-primary);min-width:0}.logo-icon{width:var(--size-avatar-sm);height:var(--size-avatar-sm);background:linear-gradient(135deg,var(--color-primary),var(--color-primary-light));border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:var(--color-text-inverse);font-weight:var(--font-weight-bold);font-size:var(--font-size-sm);flex-shrink:0}.search-container{flex:1;max-width:500px;position:relative}.search-input{width:100%;padding:var(--space-sm) var(--space-md) var(--space-sm) calc(var(--size-avatar-sm) + var(--space-sm));border:var(--default-border);border-radius:var(--radius-full);font-size:var(--font-size-sm);background:var(--color-background-secondary);transition:var(--transition-normal)}.search-input:focus{outline:none;border-color:var(--color-primary);background:var(--color-surface);box-shadow:0 0 0 3px #6d4aff1a}.search-input::placeholder{color:var(--color-text-muted)}.search-icon{position:absolute;left:var(--space-md);top:50%;transform:translateY(-50%);color:var(--color-text-muted);pointer-events:none}.sidebar{width:var(--size-sidebar);background:var(--color-surface);border-right:var(--default-border);display:flex;flex-direction:column;overflow-y:auto;height:calc(100% - var(--size-header));flex-shrink:0}.compose-button{margin:var(--space-lg);padding:var(--space-sm) var(--space-xl);background:var(--color-primary);color:var(--color-text-inverse);border-radius:var(--radius-lg);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);cursor:pointer;display:flex;align-items:center;gap:var(--space-sm);transition:var(--transition-normal);box-shadow:var(--compose-button-shadow)}.compose-button:hover{background:var(--color-primary-dark);transform:translateY(-1px);box-shadow:var(--compose-button-hover-shadow)}.compose-button:active{background:var(--color-primary-darker);transform:translateY(0)}.sidebar-section{padding:0 var(--sidebar-section-padding) var(--space-lg)}.sidebar-section-title{font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);text-transform:uppercase;letter-spacing:.5px;color:var(--color-text-secondary);margin-bottom:var(--space-sm);padding:0 var(--space-sm);display:flex;align-items:center;gap:var(--space-xs);cursor:pointer;-webkit-user-select:none;user-select:none}.sidebar-section-title:hover{color:var(--color-text-primary)}.sidebar-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-xs) var(--space-md);height:var(--sidebar-item-height);border-radius:var(--radius-md);cursor:pointer;transition:var(--transition-fast);color:var(--color-text-primary);text-decoration:none;width:100%;margin:var(--space-xs) 0}.sidebar-item:hover{background:var(--color-hover)}.sidebar-item.active{background:var(--color-primary-lighter);color:var(--color-primary)}.sidebar-item-icon{width:var(--size-icon-md);height:var(--size-icon-md);flex-shrink:0;color:currentColor}.sidebar-item-label{flex:1;font-size:var(--font-size-sm);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-item-count{background:var(--color-primary);color:var(--color-text-inverse);font-size:var(--font-size-xs);font-weight:var(--font-weight-bold);padding:2px var(--space-xs);border-radius:var(--radius-full);min-width:18px;text-align:center}.sidebar-item-count.empty{background:transparent;color:var(--color-text-muted);font-weight:var(--font-weight-normal)}.folder-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-xs) var(--space-md) var(--space-xs) calc(var(--space-lg) + var(--space-md));height:var(--sidebar-item-height);border-radius:0 var(--radius-md) var(--radius-md) 0;cursor:pointer;transition:var(--transition-fast);color:var(--color-text-primary);text-decoration:none;width:100%;margin:var(--space-xs) 0}.folder-item:hover{background:var(--color-hover)}.folder-item.active{background:var(--color-primary-lighter);color:var(--color-primary)}.folder-item-icon{width:var(--size-icon-sm);height:var(--size-icon-sm);flex-shrink:0;color:currentColor}.folder-item-label{flex:1;font-size:var(--font-size-sm)}.storage-indicator{padding:var(--space-md) var(--sidebar-section-padding)}.storage-label{display:flex;align-items:center;gap:var(--space-xs);font-size:var(--font-size-xs);color:var(--color-text-muted);margin-bottom:var(--space-xs)}.storage-indicator .indicator-dot{width:6px;height:6px;border-radius:50%;background:var(--color-primary)}.storage-bar{height:3px;background:var(--color-border);border-radius:var(--radius-full);overflow:hidden}.storage-bar-fill{height:100%;width:80%;background:linear-gradient(90deg,var(--color-primary),var(--color-primary-light));border-radius:var(--radius-full);transition:width var(--transition-slow)}.main-layout{display:flex;flex-direction:row;height:calc(100% - var(--size-header));overflow:hidden}.mail-list{width:var(--size-maillist);background:var(--color-surface);border-right:var(--default-border);display:flex;flex-direction:column;overflow:hidden;height:calc(100% - var(--size-header));flex-shrink:0}.mail-list-header{padding:var(--space-sm) var(--space-lg);border-bottom:var(--default-border);display:flex;align-items:center;gap:var(--space-md);min-height:48px}.mail-list-actions{display:flex;gap:var(--space-xs);margin-left:auto}.mail-list-action{width:var(--size-icon-xl);height:var(--size-icon-xl);padding:var(--space-xs);border-radius:var(--radius-sm);color:var(--color-text-muted);transition:var(--transition-fast)}.mail-list-action:hover:not(:disabled){background:var(--color-hover);color:var(--color-text-primary)}.mail-list-action:disabled{opacity:.4;cursor:not-allowed}.mail-list-action.active{background:var(--color-primary-lighter);color:var(--color-primary)}.mail-list-content{flex:1;overflow-y:auto}.mail-item{display:flex;align-items:center;gap:var(--space-sm);padding:var(--mail-item-padding);height:var(--mail-item-height);border-bottom:var(--default-border);cursor:pointer;transition:var(--transition-fast);width:100%}.mail-item:last-child{border-bottom:none}.mail-item:hover{background:var(--color-hover)}.mail-item.selected{background:var(--selection-primary)}.mail-item.unread{background:var(--color-unread)}.mail-item.unread.selected{background:var(--selection-primary)}.mail-item-unread .mail-item-sender,.mail-item-unread .mail-item-subject{font-weight:var(--font-weight-semibold);color:var(--color-primary)}.mail-item-checkbox{width:var(--size-icon-md);height:var(--size-icon-md);display:flex;align-items:center;justify-content:center;flex-shrink:0}.mail-item-action{width:var(--size-icon-md);height:var(--size-icon-md);display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);color:var(--color-text-muted);cursor:pointer;transition:var(--transition-fast);flex-shrink:0}.mail-item-action:hover{background:var(--color-hover)}.mail-item-action.active{color:var(--color-warning)}.mail-item-action.important.active{color:var(--color-danger)}.mail-item-avatar{width:var(--size-avatar-sm);height:var(--size-avatar-sm);border-radius:var(--radius-full);background:linear-gradient(135deg,var(--color-primary),var(--color-primary-light));display:flex;align-items:center;justify-content:center;color:var(--color-text-inverse);font-weight:var(--font-weight-semibold);font-size:var(--font-size-xs);flex-shrink:0}.mail-item-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.mail-item-sender{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mail-item-subject{font-size:var(--font-size-sm);color:var(--color-text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mail-item-preview{font-size:var(--font-size-xs);color:var(--color-text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mail-item-meta{display:flex;align-items:center;gap:var(--space-md);font-size:var(--font-size-xs);color:var(--color-text-muted);white-space:nowrap;margin-left:auto;padding-left:var(--space-md)}.mail-item-attachment{color:var(--color-text-muted)}.empty-state{padding:var(--space-5xl) var(--space-lg);text-align:center;color:var(--color-text-muted);height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center}.empty-state-icon{color:var(--color-text-muted);opacity:.5;margin-bottom:var(--space-lg)}.empty-state-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-secondary);margin-bottom:var(--space-xs)}.empty-state-text{font-size:var(--font-size-sm)}.mail-list-footer{padding:var(--space-sm) var(--space-lg);border-top:var(--default-border);display:flex;align-items:center;justify-content:space-between;font-size:var(--font-size-xs);color:var(--color-text-muted)}.mail-detail{flex:1;min-width:0;background:var(--color-background);display:flex;flex-direction:column;overflow:hidden;height:calc(100% - var(--size-header))}.mail-detail-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--color-text-muted);text-align:center;padding:var(--space-5xl)}.mail-detail-empty h3{font-size:var(--font-size-xl);margin-bottom:var(--space-sm)}.mail-detail-empty p{font-size:var(--font-size-sm)}.mail-detail-header{background:var(--color-surface);border-bottom:var(--default-border);padding:var(--space-md) var(--space-xl);display:flex;align-items:center;justify-content:space-between;min-height:64px}.mail-detail-actions{display:flex;gap:var(--space-xs)}.mail-detail-action{width:var(--size-icon-xl);height:var(--size-icon-xl);padding:var(--space-xs);border-radius:var(--radius-sm);color:var(--color-text-muted);transition:var(--transition-fast)}.mail-detail-action:hover{background:var(--color-hover);color:var(--color-text-primary)}.mail-detail-action.danger:hover{background:var(--color-danger-light);color:var(--color-danger)}.mail-detail-info{display:flex;flex-direction:column;gap:var(--space-xs);flex:1;margin:0 var(--space-xl)}.mail-detail-subject{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin-bottom:var(--space-xs)}.mail-detail-meta{display:flex;align-items:center;gap:var(--space-lg);font-size:var(--font-size-sm);color:var(--color-text-secondary);flex-wrap:wrap}.mail-detail-sender{display:flex;align-items:center;gap:var(--space-sm)}.mail-detail-avatar{width:var(--size-avatar-sm);height:var(--size-avatar-sm);border-radius:var(--radius-full);background:linear-gradient(135deg,var(--color-primary),var(--color-primary-light));display:flex;align-items:center;justify-content:center;color:var(--color-text-inverse);font-weight:var(--font-weight-semibold);font-size:var(--font-size-xs)}.mail-detail-recipients{display:flex;gap:var(--space-lg);font-size:var(--font-size-sm)}.mail-detail-date{margin-left:auto}.mail-detail-size{display:flex;align-items:center;gap:var(--space-xs)}.mail-detail-body{flex:1;overflow-y:auto;padding:var(--space-3xl)}.mail-detail-body-content{max-width:800px;line-height:var(--line-height-relaxed)}.mail-detail-body-content p{margin-bottom:var(--space-lg);font-size:var(--font-size-base)}.mail-detail-body-content p:last-child{margin-bottom:0}.mail-detail-body-content blockquote{border-left:3px solid var(--color-border-strong);padding-left:var(--space-lg);margin-left:0;color:var(--color-text-secondary);font-style:italic}.compose-backdrop{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;z-index:var(--z-modal-backdrop);display:flex;align-items:flex-end;justify-content:center;padding:var(--space-xl);animation:fadeIn .2s ease-out}.compose-modal{width:100%;max-width:800px;max-height:80vh;background:var(--color-surface);border-radius:var(--radius-lg) var(--radius-lg) 0 0;box-shadow:var(--shadow-xl);display:flex;flex-direction:column;overflow:hidden;animation:slideUp .3s ease-out}.compose-header{padding:var(--space-md) var(--space-xl);border-bottom:var(--default-border);display:flex;align-items:center;justify-content:space-between;min-height:56px}.compose-header-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold)}.compose-close{width:var(--size-icon-xl);height:var(--size-icon-xl);padding:var(--space-xs);border-radius:var(--radius-sm);color:var(--color-text-muted);transition:var(--transition-fast)}.compose-close:hover{background:var(--color-hover);color:var(--color-text-primary)}.compose-body{flex:1;overflow-y:auto;padding:var(--space-xl);display:flex;flex-direction:column;gap:var(--space-lg)}.compose-field{display:flex;flex-direction:column;gap:var(--space-xs)}.compose-field-label{font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);text-transform:uppercase;color:var(--color-text-secondary);letter-spacing:.5px}.compose-field-input,.compose-field-textarea{padding:var(--space-sm) var(--space-md);border:var(--default-border);border-radius:var(--radius-md);font-size:var(--font-size-base);background:var(--color-surface);transition:var(--transition-fast)}.compose-field-input:focus,.compose-field-textarea:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #6d4aff1a}.compose-field-textarea{min-height:200px;resize:vertical;font-family:inherit}.compose-field-input::placeholder,.compose-field-textarea::placeholder{color:var(--color-text-muted)}select.compose-field-input{-webkit-appearance:auto;-moz-appearance:auto;appearance:auto;cursor:pointer}.compose-cc-bcc-toggle{background:none;border:none;color:var(--color-primary);font-size:12px;cursor:pointer;padding:0;align-self:flex-start}.compose-cc-bcc-toggle:hover{text-decoration:underline}.compose-toolbar{display:flex;gap:var(--space-xs);padding:var(--space-sm) 0;border-top:var(--default-border);margin-top:var(--space-sm);flex-wrap:wrap}.compose-toolbar-button{width:var(--size-icon-xl);height:var(--size-icon-xl);padding:var(--space-xs);border-radius:var(--radius-sm);color:var(--color-text-muted);transition:var(--transition-fast)}.compose-toolbar-button:hover{background:var(--color-hover);color:var(--color-text-primary)}.compose-footer{padding:var(--space-md) var(--space-xl);border-top:var(--default-border);display:flex;align-items:center;justify-content:flex-end;gap:var(--space-md)}.compose-send{padding:var(--space-sm) var(--space-2xl);background:var(--color-primary);color:var(--color-text-inverse);border-radius:var(--radius-md);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);cursor:pointer;transition:var(--transition-normal);display:inline-flex;align-items:center;gap:var(--space-sm)}.compose-send:hover:not(:disabled){background:var(--color-primary-dark)}.compose-send:disabled{background:var(--color-background-secondary);cursor:not-allowed}.user-menu{position:relative}.user-menu-button{display:flex;align-items:center;gap:var(--space-sm);background:none;border:none;cursor:pointer;padding:var(--space-xs) var(--space-md);border-radius:var(--radius-md);transition:var(--transition-fast);color:var(--color-text-primary)}.user-menu-button:hover{background:var(--color-hover)}.user-avatar{width:var(--size-avatar-sm);height:var(--size-avatar-sm);border-radius:var(--radius-full);background:linear-gradient(135deg,var(--color-primary),var(--color-primary-light));display:flex;align-items:center;justify-content:center;color:var(--color-text-inverse);font-weight:var(--font-weight-semibold);font-size:var(--font-size-xs);flex-shrink:0}.user-info{display:flex;flex-direction:column;text-align:left}.user-name{font-weight:var(--font-weight-medium);font-size:var(--font-size-sm);white-space:nowrap}.user-email{font-size:var(--font-size-xs);color:var(--color-text-muted);white-space:nowrap}.user-menu-dropdown{position:absolute;top:100%;right:0;margin-top:var(--space-xs);background:var(--color-surface);border:var(--default-border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);min-width:200px;overflow:hidden;z-index:var(--z-dropdown);animation:fadeIn .2s ease-out}.user-menu-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-sm) var(--space-lg);cursor:pointer;transition:var(--transition-fast);color:var(--color-text-primary);font-size:var(--font-size-sm)}.user-menu-item:hover{background:var(--color-hover)}.user-menu-item-danger{color:var(--color-danger)}.user-menu-item-danger:hover{background:var(--color-danger-light)}.user-menu-item-icon{width:var(--size-icon-sm);height:var(--size-icon-sm);color:currentColor}.checkbox{width:var(--size-icon-md);height:var(--size-icon-md);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--transition-fast);flex-shrink:0}.checkbox:hover{border-color:var(--color-primary)}.checkbox.checked{background:var(--color-primary);border-color:var(--color-primary)}.checkbox.checked:after{content:"";width:5px;height:9px;border:solid white;border-width:0 2px 2px 0;transform:rotate(45deg);margin-bottom:2px}.checkbox.indeterminate{background:var(--color-primary);border-color:var(--color-primary)}.checkbox.indeterminate:after{content:"";width:10px;height:2px;background:#fff;border-radius:1px}.spinner{width:var(--size-icon-lg);height:var(--size-icon-lg);border:2px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .8s linear infinite}.tooltip{position:relative}.tooltip-text{position:absolute;bottom:100%;left:50%;transform:translate(-50%);background:var(--color-text-primary);color:var(--color-text-inverse);padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-sm);font-size:var(--font-size-xs);white-space:nowrap;z-index:var(--z-tooltip);opacity:0;visibility:hidden;transition:var(--transition-fast);margin-bottom:var(--space-xs)}.tooltip:hover .tooltip-text{opacity:1;visibility:visible}.menu-button{display:flex;align-items:center;gap:var(--space-sm);background:none;border:none;cursor:pointer;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);color:var(--color-text-primary);font-weight:var(--font-weight-medium);font-size:var(--font-size-sm);transition:var(--transition-fast)}.menu-button:hover{background:var(--color-hover)}@media (max-width: 1024px){.mail-list{width:300px}}@media (max-width: 768px){.sidebar{position:fixed;left:-280px;top:var(--size-header);bottom:0;z-index:var(--z-dropdown);transition:var(--transition-normal)}.sidebar.open{left:0}.mail-list{position:fixed;left:-300px;top:var(--size-header);bottom:0;z-index:calc(var(--z-dropdown) - 1);transition:var(--transition-normal);width:100%;max-width:350px}.mail-list.open{left:0}.main-layout{flex-direction:column}.mail-detail{width:100%}.header{padding:0 var(--space-md);gap:var(--space-md)}.header-left,.header-right{gap:var(--space-sm)}.search-container{display:none}.compose-button{padding:var(--space-sm);margin:var(--space-md)}.compose-button span{display:none}}@media (max-width: 480px){.mail-detail-body{padding:var(--space-xl)}.mail-detail-header{padding:var(--space-md)}.mail-list-header{padding:var(--space-sm)}}.mail-list-action.spinning svg{animation:spin 1s linear infinite}svg.spin,.spin{animation:spin 1s linear infinite}.mail-list-actions{gap:2px;flex-wrap:wrap}