:root{--primary: #1e40af;--primary-light: #3b82f6;--primary-dark: #1e3a8a;--primary-50: #eff6ff;--primary-100: #dbeafe;--primary-500: #3b82f6;--primary-600: #2563eb;--primary-700: #1d4ed8;--bg-main: #f8fafc;--bg-card: #ffffff;--border: #e2e8f0;--border-light: #f1f5f9;--text-primary: #1e293b;--text-secondary: #64748b;--text-muted: #94a3b8;--gray-50: #f8fafc;--gray-100: #f1f5f9;--gray-200: #e2e8f0;--gray-300: #cbd5e1;--gray-400: #94a3b8;--gray-500: #64748b;--gray-600: #475569;--gray-700: #334155;--gray-800: #1e293b;--gray-900: #0f172a;--success: #059669;--success-light: #10b981;--success-dark: #047857;--success-50: #ecfdf5;--success-100: #d1fae5;--warning: #d97706;--warning-light: #f59e0b;--warning-50: #fffbeb;--warning-100: #fef3c7;--warning-200: #fde68a;--error: #dc2626;--error-light: #ef4444;--error-dark: #b91c1c;--error-50: #fef2f2;--error-100: #fee2e2;--error-200: #fecaca;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 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var(--transition-fast)}.passkey-auth-btn:hover:not(:disabled){background:var(--primary);color:#fff}.passkey-auth-btn:disabled{opacity:.5;cursor:not-allowed}.passkey-register{text-align:center}.passkey-info{font-size:var(--font-size-sm);color:var(--text-muted);margin-bottom:var(--space-3)}.passkey-register-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-4);margin-top:var(--space-3);background:var(--primary);border:none;border-radius:var(--radius-md);font-weight:600;font-size:var(--font-size-base);color:#fff;cursor:pointer;transition:all var(--transition-fast)}.passkey-register-btn:hover:not(:disabled){background:var(--primary-dark)}.passkey-register-btn:disabled{opacity:.5;cursor:not-allowed}.auth-status{display:flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) 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0}.modal-done-btn{padding:var(--space-2) var(--space-6);background:var(--gray-100);color:var(--text-primary);border:1px solid var(--border);border-radius:var(--radius-md);font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.modal-done-btn:hover{background:var(--gray-200)}.mobile-upload-actions{display:flex;flex-direction:column;gap:var(--space-2);width:100%}.modal-add-files-btn{display:flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-4);background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);font-weight:600;font-size:var(--font-size-base);color:var(--text-primary);cursor:pointer;transition:all var(--transition-fast);height:48px;box-sizing:border-box}.modal-add-files-btn:hover{background:var(--gray-50);border-color:var(--gray-300)}.mobile-no-files-message{text-align:center;color:var(--text-secondary);padding:var(--space-8) var(--space-4);font-size:var(--font-size-sm)}.flex{display:flex}.flex-1{flex:1}.items-center{align-items:center}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.flex-shrink-0{flex-shrink:0}.text-left{text-align:left}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.text-blue-600{color:var(--primary)}.text-gray-500{color:var(--text-secondary)}.text-gray-700{color:var(--text-primary)}.text-blue-500{color:var(--primary-light)}.text-red-500{color:var(--error)}.text-lg{font-size:var(--font-size-lg)}.text-xl{font-size:var(--font-size-xl)}.text-base{font-size:var(--font-size-base)}.font-medium{font-weight:500}.font-bold{font-weight:700}.font-semibold{font-weight:600}.mb-2{margin-bottom:var(--space-2)}.mb-3{margin-bottom:var(--space-3)}.w-full{width:100%}.relative{position:relative}.absolute{position:absolute}.fixed{position:fixed}.inset-0{top:0;right:0;bottom:0;left:0}.z-40{z-index:40}.z-50{z-index:50}.bg-white\/10{background-color:#ffffff1a}.bg-white\/15{background-color:#ffffff26}.bg-white\/95{background-color:#fffffff2}.bg-blue-50{background-color:var(--primary-50)}.bg-blue-100{background-color:var(--primary-100)}.hover\:bg-blue-50:hover{background-color:var(--primary-50)}.text-white\/90{color:#ffffffe6}.border-white\/20{border-color:#fff3}.rounded-lg{border-radius:var(--radius-lg)}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.animate-pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}.loading-spinner-container{margin-bottom:var(--space-4)}@media (min-width: 640px){.sm\:inline{display:inline}}@media (min-width: 768px){.md\:inline{display:inline}}.loading-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#fffc;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);display:flex;align-items:center;justify-content:center;z-index:500}.loading-spinner{display:flex;flex-direction:column;align-items:center;gap:var(--space-4)}.loading-spinner .spinner{color:var(--primary);animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (max-width: 768px){.header-content{flex-direction:column;gap:var(--space-4);text-align:center;padding:var(--space-4) var(--space-4)}.header h1{font-size:var(--font-size-xl);justify-content:center}.header-actions{width:100%;justify-content:center}.content{padding:var(--space-4);min-height:calc(100vh - 120px)}.files-grid{grid-template-columns:1fr;gap:var(--space-4)}.file-card{padding:var(--space-4);min-height:180px}.no-files{padding:var(--space-10) var(--space-4)}}@media (max-width: 480px){.header{z-index:1001}.header-content{padding:var(--space-5) var(--space-3) var(--space-2);position:relative}.header-right .language-toggle{position:absolute;top:33px;right:12px}.content{padding:var(--space-3);padding-bottom:160px}.file-card{padding:var(--space-3)}.header-actions{position:fixed;bottom:calc(16px + env(safe-area-inset-bottom,0px));left:16px;right:16px;width:auto;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-3);display:flex;flex-direction:column;gap:var(--space-2);z-index:100;box-shadow:0 12px 40px #00000040,0 4px 12px #00000026;overflow:hidden}.toggle-upload-btn{width:100%;height:48px;font-size:var(--font-size-base);justify-content:center}.clear-files-container{width:100%;height:48px;padding:0;border:1px solid var(--error-100);border-radius:var(--radius-md);background:var(--bg-card)}.clear-files-container .clear-expanded-content{display:none}.clear-files-container .clear-files-btn{flex:1;width:100%;max-width:none;height:48px;padding:0 var(--space-4);border:none;border-radius:var(--radius-md);background:transparent;justify-content:center;overflow:visible}.clear-files-container.expanded{height:48px;flex-direction:row;padding:var(--space-2);gap:var(--space-2)}.clear-files-container.expanded .clear-expanded-content{display:flex;flex:1;gap:var(--space-2);max-width:none;opacity:1;margin-right:0;flex-wrap:nowrap;align-items:center}.clear-files-container.expanded .clear-password-wrapper{flex:1;width:auto;height:36px}.clear-files-container.expanded .clear-action-btn{width:36px;height:36px}.clear-files-container.expanded .clear-files-btn{opacity:0;max-width:0;padding:0;pointer-events:none;flex:0;width:0;overflow:hidden}.drop-zone{padding:var(--space-6) var(--space-4)}.drop-zone-text{display:none}.modal-drop-zone{padding:var(--space-4);border:none;background:transparent}.modal-drop-zone .drop-zone-icon,.modal-drop-zone .drop-zone-text,.modal-drop-zone .drop-zone-subtitle{display:none}.modal-drop-zone .upload-button-label{width:100%}.modal-drop-zone .upload-browse-btn{width:100%;padding:var(--space-4);font-size:var(--font-size-base)}.modal-backdrop{align-items:flex-end;padding:0;padding-bottom:calc(16px + env(safe-area-inset-bottom,0px));background:transparent;-webkit-backdrop-filter:none;backdrop-filter:none}.modal-container{margin:0 16px;width:calc(100% - 32px);max-width:calc(100% - 32px);border-radius:var(--radius-lg);max-height:70vh;box-shadow:0 12px 40px #00000040,0 4px 12px #00000026}.modal-body{min-height:auto}.modal-footer{padding:var(--space-3)}.modal-footer.transitioning{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:0 8px 30px #00000026}.mobile-success-section{display:flex;flex-direction:row;align-items:center;justify-content:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);background:var(--success);border-radius:var(--radius-md);height:48px}.mobile-success-section .success-animation{margin:0;display:flex;align-items:center;justify-content:center}.mobile-success-section .success-checkmark.small{width:18px;height:18px;display:block}.mobile-success-section .success-checkmark-circle,.mobile-success-section .success-checkmark-check{stroke:#fff}.mobile-success-section .success-text{color:#fff;font-weight:500;font-size:var(--font-size-base)}.modal-add-files-btn.disabled{opacity:.5;pointer-events:none;cursor:not-allowed}.modal-add-files-btn.collapsing{animation:collapseOut .3s ease-out forwards;overflow:hidden}@keyframes collapseOut{0%{max-height:48px;opacity:1;margin-bottom:var(--space-2)}to{max-height:0;opacity:0;margin-bottom:0;padding-top:0;padding-bottom:0}}.clear-files-container.expanding{animation:expandFromBottom .3s ease-out forwards;transform-origin:bottom center}@keyframes expandFromBottom{0%{max-height:0;opacity:0;transform:scaleY(0);margin-bottom:0}to{max-height:48px;opacity:1;transform:scaleY(1);margin-bottom:var(--space-2)}}.clear-files-container.revealing{animation:reveal .3s ease-out forwards;overflow:hidden}@keyframes reveal{0%{max-height:0;opacity:0}to{max-height:48px;opacity:1}}.toggle-upload-btn.from-success{animation:greenToBlue .4s ease-out forwards}@keyframes greenToBlue{0%{background:var(--success);border-color:var(--success)}to{background:var(--primary);border-color:var(--primary)}}.upload-item{flex-wrap:wrap}.upload-filename{width:100%;order:1}.upload-size{order:2}.clear-confirm{flex-wrap:wrap}}.print-button:focus-visible,.toggle-upload-btn:focus-visible,.clear-files-btn:focus-visible,.upload-browse-btn:focus-visible,.upload-all-btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.language-toggle:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.completion-splash{position:fixed;top:0;right:0;bottom:0;left:0;background:#fffffffa;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .3s ease-out}.completion-content{text-align:center;animation:scaleIn .4s ease-out}.completion-icon{color:var(--success);margin-bottom:var(--space-6)}.completion-content h2{font-size:var(--font-size-2xl);font-weight:600;color:var(--text-primary);margin:0 0 var(--space-2) 0}.completion-content p{font-size:var(--font-size-lg);color:var(--text-secondary);margin:0}@media print{body{background:#fff}.print-center{box-shadow:none;border:none}}