:root{--color-primary: #5DBBE8;--color-primary-dark: #4AA5CF;--color-primary-light: #7DD3F5;--color-primary-lighter: #A8E4FA;--color-secondary: #4AA5CF;--color-secondary-dark: #2E7A93;--color-success: #10B981;--color-success-light: #D1FAE5;--color-warning: #F59E0B;--color-warning-light: #FEF3C7;--color-error: #EF4444;--color-error-light: #FEE2E2;--color-info: #3B82F6;--color-info-light: #DBEAFE;--color-white: #FFFFFF;--color-gray-50: #F9FAFB;--color-gray-100: #F3F4F6;--color-gray-200: #E5E7EB;--color-gray-300: #D1D5DB;--color-gray-400: #9CA3AF;--color-gray-500: #6B7280;--color-gray-600: #4B5563;--color-gray-700: #374151;--color-gray-800: #1F2937;--color-gray-900: #111827;--color-background: #F8FCFE;--color-background-secondary: #FFFFFF;--color-background-tertiary: #F9FAFB;--color-text: #111827;--color-text-primary: #111827;--color-text-secondary: #4B5563;--color-text-tertiary: #6B7280;--color-text-on-primary: #FFFFFF;--color-border: #E5E7EB;--color-border-dark: 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var(--transition-fast)}button:disabled{opacity:.5;cursor:not-allowed}input,textarea,select{font-family:inherit;font-size:var(--font-size-base);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--spacing-2) var(--spacing-3);background-color:var(--color-background-secondary);color:var(--color-text);transition:border-color var(--transition-fast),box-shadow var(--transition-fast),background-color var(--transition-fast)}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #5dbbe833}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;gap:var(--spacing-4)}@keyframes 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1.2s}.loading-spinner-container{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.5rem;padding:2rem}.loading-spinner-fullscreen{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.5rem;min-height:400px;width:100%}.loading-spinner-text{margin:0;font-size:1rem;color:var(--color-gray-600, #6B7280);font-weight:500;text-align:center}.cloudcafe-spinner{position:relative;display:inline-block}.cloudcafe-spinner-ring{position:absolute;border-radius:50%;border:3px solid transparent;border-top-color:var(--spinner-primary);animation:cloudcafe-spin var(--spinner-animation-duration) cubic-bezier(.68,-.55,.27,1.55) infinite}.cloudcafe-spinner-small{width:32px;height:32px}.cloudcafe-spinner-small .cloudcafe-spinner-ring{width:32px;height:32px;border-width:2px}.cloudcafe-spinner-small .cloudcafe-spinner-ring:nth-child(1){animation-delay:0s}.cloudcafe-spinner-small .cloudcafe-spinner-ring:nth-child(2){width:24px;height:24px;top:4px;left:4px;animation-delay:-.4s;border-top-color:#5dbbe899}.cloudcafe-spinner-small .cloudcafe-spinner-ring:nth-child(3){width:16px;height:16px;top:8px;left:8px;animation-delay:-.8s;border-top-color:#5dbbe84d}.cloudcafe-spinner-medium{width:48px;height:48px}.cloudcafe-spinner-medium .cloudcafe-spinner-ring{width:48px;height:48px;border-width:3px}.cloudcafe-spinner-medium .cloudcafe-spinner-ring:nth-child(1){animation-delay:0s}.cloudcafe-spinner-medium .cloudcafe-spinner-ring:nth-child(2){width:36px;height:36px;top:6px;left:6px;animation-delay:-.4s;border-top-color:#5dbbe899}.cloudcafe-spinner-medium .cloudcafe-spinner-ring:nth-child(3){width:24px;height:24px;top:12px;left:12px;animation-delay:-.8s;border-top-color:#5dbbe84d}.cloudcafe-spinner-large{width:64px;height:64px}.cloudcafe-spinner-large .cloudcafe-spinner-ring{width:64px;height:64px;border-width:4px}.cloudcafe-spinner-large .cloudcafe-spinner-ring:nth-child(1){animation-delay:0s}.cloudcafe-spinner-large .cloudcafe-spinner-ring:nth-child(2){width:48px;height:48px;top:8px;left:8px;animation-delay:-.4s;border-top-color:#5dbbe899}.cloudcafe-spinner-large .cloudcafe-spinner-ring:nth-child(3){width:32px;height:32px;top:16px;left:16px;animation-delay:-.8s;border-top-color:#5dbbe84d}@keyframes cloudcafe-spin{0%{transform:rotate(0);opacity:1}50%{opacity:.8}to{transform:rotate(360deg);opacity:1}}@media(prefers-reduced-motion:reduce){.cloudcafe-spinner-ring{animation-duration:2s}}.inbox-page{display:flex;flex-direction:row;height:calc(100vh - 100px);position:relative;gap:var(--spacing-3);overflow:hidden}.folder-sidebar{width:220px;min-width:180px;flex-shrink:0}.email-list-section{min-width:250px;max-width:600px;flex-shrink:0;display:flex;flex-direction:column;overflow:hidden}.email-preview-section{flex:1;min-width:300px;overflow:hidden;background:var(--color-background-secondary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;border:1px solid var(--color-border);transition:background-color var(--transition-base),border-color var(--transition-base)}.resize-handle{width:12px;flex-shrink:0;cursor:col-resize;display:flex;align-items:center;justify-content:center;background:transparent;z-index:20;position:relative}.resize-handle:before{content:"";width:4px;height:60px;background:var(--color-border-dark);border-radius:4px;opacity:.5;transition:opacity .15s,background .15s,height .15s}.resize-handle:hover:before{opacity:1;background:var(--color-text-tertiary);height:80px}.resize-handle.dragging:before{opacity:1;background:var(--color-primary);height:100px}.inbox-page.resizing{-webkit-user-select:none;user-select:none;cursor:col-resize}.inbox-page.resizing *{cursor:col-resize!important;pointer-events:none}.inbox-page.resizing .resize-handle{pointer-events:auto}.inbox-no-account{grid-column:1 / -1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:var(--spacing-12)}.inbox-no-account .empty-icon{font-size:64px;margin-bottom:var(--spacing-4)}.inbox-no-account h2{font-size:var(--font-size-xl);color:var(--color-text-primary);margin:0 0 var(--spacing-2)}.inbox-no-account p{color:var(--color-text-secondary);margin:0 0 var(--spacing-6)}.folder-sidebar{background:var(--color-background-secondary);border-radius:var(--radius-lg);padding:var(--spacing-4);box-shadow:var(--shadow-sm);border:1px solid var(--color-border);display:flex;flex-direction:column;overflow:hidden;transition:background-color var(--transition-base),border-color var(--transition-base)}.compose-btn{display:flex;align-items:center;justify-content:center;gap:var(--spacing-2);padding:var(--spacing-3);background:linear-gradient(135deg,var(--color-primary) 0%,#3da8d5 100%);color:#fff;border:none;border-radius:var(--radius-md);font-size:var(--font-size-md);font-weight:600;cursor:pointer;margin-bottom:var(--spacing-4);transition:all var(--transition-fast)}.compose-btn:hover{transform:translateY(-1px);box-shadow:0 4px 12px #5dbbe866}.folder-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:var(--spacing-1)}.folder-item{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-2) var(--spacing-3);background:none;border:none;border-radius:var(--radius-md);font-size:var(--font-size-sm);color:var(--color-text-secondary);cursor:pointer;transition:all var(--transition-fast);text-align:left;width:100%}.folder-item:hover{background:var(--color-background-tertiary)}.folder-item.active{background:#5dbbe81a;color:var(--color-primary);font-weight:500}.folder-icon{font-size:var(--font-size-md)}.folder-name{flex:1}.folder-badge{background:var(--color-primary);color:#fff;font-size:var(--font-size-xs);font-weight:600;padding:2px 6px;border-radius:var(--radius-full)}.account-selector{margin-top:auto;padding-top:var(--spacing-4);border-top:1px solid var(--color-border)}.account-selector label{display:block;font-size:var(--font-size-xs);color:var(--color-text-secondary);margin-bottom:var(--spacing-1);font-weight:500}.account-selector-wrapper{position:relative;display:flex;align-items:center}.account-selector select{width:100%;padding:var(--spacing-2);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--font-size-sm);background:var(--color-background-secondary);color:var(--color-text-primary);cursor:pointer;transition:all var(--transition-fast);-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right var(--spacing-2) center;background-size:14px;padding-right:var(--spacing-6)}.account-selector select:hover:not(:disabled){border-color:var(--color-primary);background-color:var(--color-background-tertiary)}.account-selector select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #5dbbe81a}.account-selector select:disabled{opacity:.6;cursor:not-allowed;background-color:var(--color-background-tertiary);color:var(--color-text-tertiary)}.account-selector select.switching{color:var(--color-text-secondary)}.account-selector select option{background:var(--color-background-secondary);color:var(--color-text-primary)}.account-switching-spinner{position:absolute;right:var(--spacing-3);display:flex;align-items:center;justify-content:center;pointer-events:none}.account-switching-spinner .spinner-icon{font-size:var(--font-size-md);animation:spin 1s linear infinite}.email-list-section{background:var(--color-background-secondary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--color-border);display:flex;flex-direction:column;overflow:hidden;transition:background-color var(--transition-base),border-color var(--transition-base)}.email-list-header{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-3);border-bottom:1px solid var(--color-border)}.search-box{flex:1;display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-2) var(--spacing-3);background:var(--color-background-tertiary);border-radius:var(--radius-md)}.search-icon{color:var(--color-text-tertiary)}.search-box input{flex:1;border:none;background:none;font-size:var(--font-size-sm);outline:none;color:var(--color-text-primary)}.search-box input::placeholder{color:var(--color-text-tertiary)}.refresh-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:none;border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);color:var(--color-text-secondary)}.refresh-btn:hover:not(:disabled){background:var(--color-background-tertiary);color:var(--color-text-primary)}.refresh-btn:disabled{opacity:.5;cursor:not-allowed}.email-list{flex:1;overflow-y:auto}.email-item{display:grid;grid-template-columns:auto 1fr auto;gap:var(--spacing-3);padding:var(--spacing-3);border-bottom:1px solid var(--color-border-light);cursor:pointer;transition:background var(--transition-fast)}.email-item:hover{background:var(--color-background-tertiary)}.email-item.selected{background:#5dbbe81a}.email-item.unread{background:var(--color-background-secondary)}.email-item.unread .sender-name,.email-item.unread .email-subject{font-weight:600}.email-sender{display:flex;align-items:center;gap:var(--spacing-2)}.sender-avatar{width:32px;height:32px;border-radius:var(--radius-full);background:var(--color-border-dark);display:flex;align-items:center;justify-content:center;font-size:var(--font-size-sm);font-weight:600;color:var(--color-text-on-primary)}.sender-avatar.large{width:40px;height:40px;font-size:var(--font-size-md);background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-secondary) 100%)}.sender-name{font-size:var(--font-size-sm);color:var(--color-text-primary);max-width:120px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.email-content{min-width:0}.email-subject{font-size:var(--font-size-sm);color:var(--color-text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:var(--spacing-1)}.email-preview{font-size:var(--font-size-xs);color:var(--color-text-tertiary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.email-meta{display:flex;flex-direction:column;align-items:flex-end;gap:var(--spacing-1);min-width:60px}.email-date{font-size:var(--font-size-xs);color:var(--color-text-tertiary)}.attachment-icon,.flag-icon{font-size:var(--font-size-xs)}.loading-state,.empty-email-list,.no-email-selected{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-12);text-align:center;color:var(--color-text-tertiary)}.loading-state .empty-icon,.empty-email-list .empty-icon,.no-email-selected .empty-icon{font-size:48px;margin-bottom:var(--spacing-4);opacity:.5}.loading-state h3,.empty-email-list h3,.no-email-selected h3{font-size:var(--font-size-md);color:var(--color-text-secondary);margin:0 0 var(--spacing-1)}.loading-state p,.empty-email-list p,.no-email-selected p{font-size:var(--font-size-sm);margin:0}.email-preview{flex:1;display:flex;flex-direction:column;overflow:hidden}.preview-header{display:flex;justify-content:space-between;align-items:flex-start;padding:var(--spacing-4);border-bottom:1px solid var(--color-border)}.preview-subject{font-size:var(--font-size-lg);font-weight:600;color:var(--color-text-primary);margin:0;flex:1;padding-right:var(--spacing-4)}.preview-actions{display:flex;gap:var(--spacing-1)}.action-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:none;border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);color:var(--color-text-secondary)}.action-btn:hover{background:var(--color-background-tertiary);color:var(--color-text-primary)}.preview-meta{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-3) var(--spacing-4);background:var(--color-background-tertiary);border-bottom:1px solid var(--color-border)}.sender-info{display:flex;align-items:center;gap:var(--spacing-3)}.sender-details{display:flex;flex-direction:column}.sender-details .sender-name{font-weight:600;color:var(--color-text-primary);max-width:none}.sender-email,.email-datetime{font-size:var(--font-size-xs);color:var(--color-text-tertiary)}.preview-recipients{padding:var(--spacing-2) var(--spacing-4);font-size:var(--font-size-sm);border-bottom:1px solid var(--color-border-light)}.recipient-label{color:var(--color-text-tertiary);margin-right:var(--spacing-2)}.recipient-list{color:var(--color-text-secondary)}.preview-attachments{padding:var(--spacing-3) 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img{max-width:100%;height:auto}.email-text-body{font-family:inherit;font-size:var(--font-size-sm);line-height:1.6;color:var(--color-text-primary);white-space:pre-wrap;margin:0}.loading-body{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-8);color:var(--color-text-tertiary)}.inbox-error{position:absolute;bottom:var(--spacing-4);left:50%;transform:translate(-50%);padding:var(--spacing-3) 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var(--color-info);border-radius:6px;font-size:.875rem;color:var(--color-info);display:flex;align-items:center;gap:.5rem}.attachment-drag-drop{margin-top:.75rem;padding:2rem;border:2px dashed var(--color-border);border-radius:8px;text-align:center;color:var(--color-text-secondary);font-size:.875rem;cursor:pointer;transition:all .2s ease}.attachment-drag-drop:hover,.attachment-drag-drop.dragging{border-color:var(--color-primary);background:var(--color-primary-lighter);color:var(--color-primary)}.compose-page .btn-primary{padding:.625rem 1.25rem;font-size:.875rem;font-weight:500;color:var(--color-text-on-primary);background:var(--color-primary);border:none;border-radius:6px;cursor:pointer;transition:background .2s ease}.compose-page .btn-primary:hover:not(:disabled){background:var(--color-primary-dark)}.compose-page .btn-primary:disabled{opacity:.6;cursor:not-allowed}.compose-page .btn-secondary{padding:.625rem 1.25rem;font-size:.875rem;font-weight:500;color:var(--color-text-primary);background:var(--color-background-tertiary);border:1px solid var(--color-border);border-radius:6px;cursor:pointer;transition:all .2s ease}.compose-page .btn-secondary:hover:not(:disabled){background:var(--color-gray-200)}.compose-page .btn-secondary:disabled{opacity:.6;cursor:not-allowed}.btn-text{padding:.25rem .5rem;font-size:.8125rem;color:var(--color-primary);background:transparent;border:none;cursor:pointer;text-decoration:underline}.btn-text:hover{color:var(--color-primary-dark)}.compose-no-account{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;text-align:center;padding:2rem}.compose-no-account h2{margin:0 0 .5rem;color:var(--color-text-primary)}.compose-no-account p{margin:0 0 1.5rem;color:var(--color-text-secondary)}@media(max-width:640px){.compose-page{padding:0}.compose-container{border-radius:0;height:100%}.compose-header,.compose-form{padding:.75rem 1rem}.from-label,.recipient-label,.subject-label{width:50px}.compose-actions{gap:.5rem}.compose-page .btn-primary,.compose-page .btn-secondary{padding:.5rem .875rem;font-size:.8125rem}}.calendar-page{display:flex;flex-direction:column;height:calc(100vh - 100px);background:var(--color-background);padding:var(--spacing-4);gap:var(--spacing-4);transition:background-color var(--transition-base)}.calendar-no-account{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;text-align:center;padding:var(--spacing-12)}.calendar-no-account .empty-icon{font-size:64px;margin-bottom:var(--spacing-4)}.calendar-no-account h2{font-size:var(--font-size-xl);color:var(--color-text-primary);margin:0 0 var(--spacing-2)}.calendar-no-account p{color:var(--color-text-secondary);margin:0 0 var(--spacing-6)}.calendar-header{display:flex;justify-content:space-between;align-items:center;background:var(--color-background-secondary);border-radius:var(--radius-lg);padding:var(--spacing-4);box-shadow:var(--shadow-sm);border:1px solid var(--color-border);transition:background-color var(--transition-base),border-color var(--transition-base)}.calendar-nav{display:flex;align-items:center;gap:var(--spacing-2)}.nav-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:var(--color-background-secondary);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--font-size-lg);color:var(--color-text-secondary);cursor:pointer;transition:all var(--transition-fast)}.nav-btn:hover{background:var(--color-background-tertiary);border-color:var(--color-border-dark);color:var(--color-text-primary)}.today-btn{width:auto;padding:0 var(--spacing-3);font-size:var(--font-size-sm);font-weight:500}.calendar-title{font-size:var(--font-size-lg);font-weight:600;color:var(--color-text-primary);margin:0 0 0 var(--spacing-4)}.calendar-actions{display:flex;align-items:center;gap:var(--spacing-3)}.view-selector{display:flex;gap:var(--spacing-1);background:var(--color-background-tertiary);border-radius:var(--radius-md);padding:var(--spacing-1);border:1px solid var(--color-border)}.view-btn{padding:var(--spacing-2) var(--spacing-3);background:none;border:none;border-radius:var(--radius-sm);font-size:var(--font-size-sm);font-weight:500;color:var(--color-text-secondary);cursor:pointer;transition:all var(--transition-fast)}.view-btn:hover{color:var(--color-text-primary)}.view-btn.active{background:var(--color-background-secondary);color:var(--color-primary);box-shadow:var(--shadow-sm)}.btn-create-event{padding:var(--spacing-2) var(--spacing-4);background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);color:var(--color-text-on-primary);border:none;border-radius:var(--radius-md);font-size:var(--font-size-sm);font-weight:600;cursor:pointer;transition:all var(--transition-fast)}.btn-create-event:hover{transform:translateY(-1px);box-shadow:0 4px 12px #5dbbe866}.calendar-content{flex:1;background:var(--color-background-secondary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--color-border);overflow:hidden;display:flex;flex-direction:column;transition:background-color var(--transition-base),border-color var(--transition-base)}.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-12);color:var(--color-text-tertiary)}.month-view{flex:1;overflow:hidden;padding:var(--spacing-2)}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);height:100%;gap:1px;background:var(--color-border);border:1px solid var(--color-border)}.day-header{background:var(--color-background-tertiary);padding:var(--spacing-2);text-align:center;font-size:var(--font-size-sm);font-weight:600;color:var(--color-text-secondary)}.calendar-day{background:var(--color-background-secondary);padding:var(--spacing-2);cursor:pointer;transition:background var(--transition-fast);min-height:100px;display:flex;flex-direction:column}.calendar-day:hover{background:var(--color-background-tertiary)}.calendar-day.today{background:#5dbbe80d}.calendar-day.other-month{opacity:.4}.day-number{font-size:var(--font-size-sm);font-weight:600;color:var(--color-text-secondary);margin-bottom:var(--spacing-2)}.calendar-day.today .day-number{color:var(--color-primary);background:var(--color-primary);color:var(--color-text-on-primary);width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center}.day-events{flex:1;display:flex;flex-direction:column;gap:2px;overflow:hidden}.event-chip{background:var(--color-primary);color:var(--color-text-on-primary);padding:2px 6px;border-radius:var(--radius-sm);font-size:var(--font-size-xs);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:all var(--transition-fast)}.event-chip:hover{background:var(--color-primary-dark);transform:translate(2px)}.event-more{font-size:var(--font-size-xs);color:var(--color-text-tertiary);margin-top:2px}.week-view{flex:1;overflow:auto}.week-grid{display:grid;grid-template-columns:60px repeat(7,1fr);min-width:800px}.time-column{background:var(--color-background-tertiary);border-right:1px solid var(--color-border)}.time-header{height:60px;border-bottom:1px solid var(--color-border)}.week-grid .time-slot{height:60px;border-bottom:1px solid var(--color-border-light);padding:var(--spacing-1);font-size:var(--font-size-xs);color:var(--color-text-tertiary);text-align:right;padding-right:var(--spacing-2)}.day-column{border-right:1px solid var(--color-border)}.day-column .day-header{height:60px;display:flex;flex-direction:column;align-items:center;justify-content:center;border-bottom:2px solid var(--color-border);background:var(--color-background-secondary)}.day-column .day-header.today{background:#5dbbe81a;border-bottom-color:var(--color-primary)}.day-name{font-size:var(--font-size-xs);color:var(--color-text-secondary);text-transform:uppercase}.day-date{font-size:var(--font-size-lg);font-weight:600;color:var(--color-text-primary)}.day-column .time-slot{height:60px;border-bottom:1px solid var(--color-border-light);position:relative;cursor:pointer;transition:background var(--transition-fast)}.day-column .time-slot:hover{background:var(--color-background-tertiary)}.event-block{position:absolute;left:2px;right:2px;top:2px;background:var(--color-primary);color:var(--color-text-on-primary);border-radius:var(--radius-sm);padding:var(--spacing-1);cursor:pointer;z-index:10;transition:all var(--transition-fast);overflow:hidden}.event-block:hover{transform:scale(1.02);box-shadow:var(--shadow-md);z-index:20}.event-time{font-size:var(--font-size-xs);opacity:.9;margin-bottom:2px}.event-title{font-size:var(--font-size-sm);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.event-location{font-size:var(--font-size-xs);opacity:.8;margin-top:2px}.day-view{flex:1;overflow:auto}.day-grid{display:grid;grid-template-columns:80px 1fr;min-height:100%}.day-view .time-column{background:var(--color-background-tertiary);border-right:1px solid var(--color-border)}.time-label{height:80px;border-bottom:1px solid var(--color-border-light);padding:var(--spacing-2);font-size:var(--font-size-sm);color:var(--color-text-tertiary);text-align:right}.events-column{flex:1}.events-column .time-slot{height:80px;border-bottom:1px solid var(--color-border-light);position:relative;cursor:pointer;transition:background var(--transition-fast)}.events-column .time-slot:hover{background:var(--color-background-tertiary)}.events-column .event-block{margin:var(--spacing-1);position:relative;padding:var(--spacing-2)}.agenda-view{flex:1;overflow:auto;padding:var(--spacing-4)}.agenda-view.empty{display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--color-text-tertiary)}.agenda-view.empty .empty-icon{font-size:48px;margin-bottom:var(--spacing-4);opacity:.5}.agenda-view.empty h3{font-size:var(--font-size-md);color:var(--color-text-secondary);margin:0 0 var(--spacing-1)}.agenda-view.empty p{font-size:var(--font-size-sm);margin:0}.agenda-day{margin-bottom:var(--spacing-6)}.agenda-date{display:flex;justify-content:space-between;align-items:center;padding-bottom:var(--spacing-2);border-bottom:2px solid var(--color-border);margin-bottom:var(--spacing-3)}.date-label{font-size:var(--font-size-md);font-weight:600;color:var(--color-text-primary)}.event-count{font-size:var(--font-size-sm);color:var(--color-text-tertiary)}.agenda-events{display:flex;flex-direction:column;gap:var(--spacing-2)}.agenda-event{display:flex;gap:var(--spacing-4);padding:var(--spacing-3);background:var(--color-background-tertiary);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.agenda-event:hover{background:var(--color-border);transform:translate(2px)}.event-time-range{min-width:120px;font-size:var(--font-size-sm);color:var(--color-text-secondary);font-weight:500}.event-details{flex:1}.event-details .event-title{font-size:var(--font-size-md);font-weight:600;color:var(--color-text-primary);margin-bottom:var(--spacing-1)}.event-details .event-location,.event-details .event-attendees{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin-top:var(--spacing-1)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:var(--spacing-4)}.modal-content{background:var(--color-background-secondary);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);max-width:600px;width:100%;max-height:90vh;overflow:auto;border:1px solid var(--color-border)}.event-modal{max-width:700px}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-4);border-bottom:1px solid var(--color-border)}.modal-header h2{font-size:var(--font-size-lg);font-weight:600;color:var(--color-text-primary);margin:0}.modal-close{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:none;border:none;border-radius:var(--radius-md);font-size:24px;color:var(--color-text-tertiary);cursor:pointer;transition:all var(--transition-fast)}.modal-close:hover{background:var(--color-background-tertiary);color:var(--color-text-secondary)}.event-form{padding:var(--spacing-4)}.form-group{margin-bottom:var(--spacing-4)}.form-group label{display:block;font-size:var(--font-size-sm);font-weight:500;color:var(--color-text-secondary);margin-bottom:var(--spacing-1)}.form-group input[type=text],.form-group input[type=datetime-local],.form-group textarea{width:100%;padding:var(--spacing-2);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--font-size-sm);font-family:inherit;background:var(--color-background-secondary);color:var(--color-text-primary);transition:all var(--transition-fast)}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #5dbbe81a}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-3)}.form-group.checkbox{display:flex;align-items:center;gap:var(--spacing-2)}.form-group.checkbox input{width:auto}.event-details-view{padding:var(--spacing-4)}.event-details-view h3{font-size:var(--font-size-xl);font-weight:600;color:var(--color-text-primary);margin:0 0 var(--spacing-4)}.detail-row{margin-bottom:var(--spacing-3);display:flex;gap:var(--spacing-2)}.detail-label{font-weight:600;color:var(--color-text-secondary);min-width:100px}.attendee-list{flex:1}.attendee{padding:var(--spacing-1) 0;font-size:var(--font-size-sm);color:var(--color-text-secondary)}.event-body{flex:1;padding:var(--spacing-3);background:var(--color-background-tertiary);border-radius:var(--radius-md);font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:1.6;white-space:pre-wrap}.modal-actions{display:flex;gap:var(--spacing-2);justify-content:flex-end;padding:var(--spacing-4);border-top:1px solid var(--color-border)}.btn{padding:var(--spacing-2) var(--spacing-4);border:none;border-radius:var(--radius-md);font-size:var(--font-size-sm);font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.btn-primary{background:var(--color-primary);color:var(--color-text-on-primary)}.btn-primary:hover:not(:disabled){background:var(--color-primary-dark)}.btn-secondary{background:var(--color-background-tertiary);color:var(--color-text-secondary);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background:var(--color-border);color:var(--color-text-primary)}.btn-danger{background:var(--color-error);color:var(--color-text-on-primary)}.btn-danger:hover:not(:disabled){background:#dc2626}.btn:disabled{opacity:.5;cursor:not-allowed}.calendar-error{position:absolute;bottom:var(--spacing-4);left:50%;transform:translate(-50%);padding:var(--spacing-3) var(--spacing-4);background:#ef4444f2;color:#fff;border-radius:var(--radius-md);font-size:var(--font-size-sm);box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:var(--spacing-2);z-index:100}@media(max-width:768px){.calendar-header{flex-direction:column;gap:var(--spacing-3)}.calendar-nav{width:100%;justify-content:space-between}.calendar-actions{width:100%;flex-direction:column}.view-selector{width:100%}.view-btn{flex:1}.week-grid{grid-template-columns:50px repeat(7,120px)}.form-row{grid-template-columns:1fr}}.pwa-update-prompt{position:fixed;bottom:1rem;right:1rem;background:var(--bg-primary, #fff);border:1px solid var(--border-color, #e0e0e0);border-radius:8px;box-shadow:0 4px 12px #00000026;padding:1rem;z-index:9999;animation:slideIn .3s ease;max-width:350px}@keyframes slideIn{0%{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}.pwa-update-content{display:flex;flex-direction:column;gap:.75rem;font-size:.9375rem}.pwa-update-actions{display:flex;gap:.5rem}.pwa-btn-update{background:var(--primary-color, #5dbbe8);color:#fff;border:none;padding:.5rem 1rem;border-radius:4px;cursor:pointer;font-weight:500;flex:1;transition:background-color .2s ease}.pwa-btn-update:hover{background:var(--primary-color-dark, #4da8d4)}.pwa-btn-update:active{transform:scale(.98)}.pwa-btn-dismiss{background:transparent;border:1px solid var(--border-color, #e0e0e0);padding:.5rem 1rem;border-radius:4px;cursor:pointer;flex:1;transition:background-color .2s ease}.pwa-btn-dismiss:hover{background:var(--bg-secondary, #f5f5f5)}.pwa-btn-dismiss:active{transform:scale(.98)}@media(max-width:600px){.pwa-update-prompt{bottom:.5rem;right:.5rem;left:.5rem;max-width:none}}.offline-indicator{position:fixed;top:0;left:0;right:0;background:#f59e0b;color:#fff;padding:.5rem 1rem;display:flex;align-items:center;justify-content:center;gap:.5rem;font-size:.875rem;font-weight:500;z-index:9998;animation:slideDown .3s ease;box-shadow:0 2px 8px #0000001a}@keyframes slideDown{0%{transform:translateY(-100%);opacity:0}to{transform:translateY(0);opacity:1}}.offline-icon{font-size:1rem;display:inline-flex;align-items:center}@media(max-width:600px){.offline-indicator{padding:.5rem .75rem;font-size:.8125rem}}.sync-status{position:relative;display:inline-block}.sync-badge{display:flex;align-items:center;gap:.5rem;background:var(--bg-secondary, #f5f5f5);border:1px solid var(--border-color, #e0e0e0);padding:.375rem .75rem;border-radius:20px;cursor:pointer;font-size:.75rem;font-weight:500;transition:all .2s ease;white-space:nowrap}.sync-badge:hover:not(:disabled){border-color:var(--primary-color, #5dbbe8);background:var(--bg-primary, #fff)}.sync-badge:active:not(:disabled){transform:scale(.98)}.sync-badge.syncing{background:#e0f2fe;border-color:#38bdf8}.sync-spinner{animation:spin 1s linear infinite;display:inline-flex;align-items:center;justify-content:center}.sync-count{background:#f59e0b;color:#fff;width:18px;height:18px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-weight:600;font-size:.7rem}.sync-label{display:none}@media(min-width:640px){.sync-label{display:inline}}.sync-dropdown{position:absolute;top:calc(100% + .5rem);right:0;background:#fff;border:1px solid var(--border-color, #e0e0e0);border-radius:8px;box-shadow:0 4px 12px #0000001a;min-width:200px;z-index:100;overflow:hidden}.sync-dropdown-header{padding:.75rem 1rem;border-bottom:1px solid var(--border-color, #e0e0e0);font-weight:500;font-size:.875rem;color:var(--text-primary, #000)}.sync-dropdown-actions{padding:.5rem;display:flex;gap:.5rem}.sync-dropdown-actions button{flex:1;padding:.5rem;border:1px solid var(--border-color, #e0e0e0);border-radius:4px;background:#fff;cursor:pointer;font-size:.8125rem;font-weight:500;transition:all .2s ease}.sync-dropdown-actions button:hover:not(:disabled){background:var(--bg-secondary, #f5f5f5);border-color:var(--primary-color, #5dbbe8)}.sync-dropdown-actions button:active:not(:disabled){transform:scale(.98)}.sync-dropdown-actions button:disabled{opacity:.6;cursor:not-allowed}@media(max-width:600px){.sync-dropdown{position:fixed;top:auto;bottom:1rem;right:1rem;left:1rem;min-width:auto}}.hero-icon{width:1.25rem;height:1.25rem;flex-shrink:0}.hero-icon.sm{width:1rem;height:1rem}.hero-icon.lg{width:1.5rem;height:1.5rem}.hero-icon.xl{width:2rem;height:2rem}.empty-icon{width:3rem;height:3rem;color:var(--color-gray-400);margin-bottom:var(--spacing-3)}.app-layout{display:flex;flex-direction:column;min-height:100vh}.app-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-3) var(--spacing-6);background-color:var(--color-background-secondary);border-bottom:1px solid var(--color-border);box-shadow:var(--shadow-sm);position:sticky;top:0;z-index:100;transition:background-color var(--transition-base),border-color var(--transition-base)}.header-brand h1{font-size:var(--font-size-xl);color:var(--color-primary);margin:0}.header-nav{display:flex;gap:var(--spacing-4)}.nav-link{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-2) var(--spacing-3);border-radius:var(--radius-md);color:var(--color-text-secondary);font-weight:500;transition:all var(--transition-fast)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.hero-icon.spin{animation:spin 1s linear infinite}button .hero-icon,.btn .hero-icon,a .hero-icon{flex-shrink:0}.nav-link:hover{color:var(--color-primary);background-color:var(--color-background-tertiary)}.nav-link.active{color:var(--color-primary);background-color:#5dbbe81a}.header-user{display:flex;align-items:center;gap:var(--spacing-3)}.user-email{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.btn-signout{background-color:transparent;color:var(--color-text-secondary);border:1px solid var(--color-border)}.btn-signout:hover{background-color:var(--color-background-tertiary);color:var(--color-text-primary)}.app-main{flex:1;padding:var(--spacing-6);background-color:var(--color-background);transition:background-color var(--transition-base)}.page{max-width:1400px;margin:0 auto}.login-page{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:var(--spacing-6);text-align:center}.login-page h1{color:var(--color-primary);margin-bottom:var(--spacing-4)}.compose-page{max-width:800px;margin:0 auto}.calendar-page{height:calc(100vh - 140px)}.settings-page{max-width:800px;margin:0 auto}@media(max-width:768px){.app-header{flex-wrap:wrap;gap:var(--spacing-3);padding:var(--spacing-3)}.header-nav{order:3;width:100%;justify-content:space-around;border-top:1px solid var(--color-border);padding-top:var(--spacing-3);margin-top:var(--spacing-2)}.nav-link{padding:var(--spacing-2);font-size:var(--font-size-sm)}.header-user{flex-direction:column;align-items:flex-end;gap:var(--spacing-1)}.user-email{font-size:var(--font-size-xs)}.btn-signout{padding:var(--spacing-1) var(--spacing-2);font-size:var(--font-size-xs)}.app-main{padding:var(--spacing-3)}}.btn-primary{background-color:var(--color-primary);color:var(--color-text-on-primary)}.btn-primary:hover{background-color:var(--color-primary-dark)}.btn-secondary{background-color:var(--color-background-tertiary);color:var(--color-text-primary)}.btn-secondary:hover{background-color:var(--color-gray-200)}.btn-danger{background-color:var(--color-error);color:var(--color-white)}.btn-danger:hover{background-color:#dc2626}.card{background-color:var(--color-background-secondary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--color-border);transition:background-color var(--transition-base),border-color var(--transition-base)}.card-header{padding:var(--spacing-4);border-bottom:1px solid var(--color-border)}.card-body{padding:var(--spacing-4)}.card-footer{padding:var(--spacing-4);border-top:1px solid var(--color-border);background-color:var(--color-background-tertiary);border-radius:0 0 var(--radius-lg) var(--radius-lg)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-12);text-align:center;color:var(--color-text-tertiary)}.empty-state-icon{font-size:48px;margin-bottom:var(--spacing-4);opacity:.5}.empty-state-title{font-size:var(--font-size-lg);font-weight:600;margin-bottom:var(--spacing-2);color:var(--color-text-primary)}.empty-state-description{font-size:var(--font-size-sm);max-width:300px}