html{font-family:Poppins,"serif"}:root{--primary-color: #4f46e5;--primary-hover: #4338ca;--secondary-color: #c7d2fe;--text-color: #1f2937;--text-light: #6b7280;--error-color: #ef4444;--success-color: #10b981;--background-color: #f9fafb;--card-background: #ffffff;--border-color: #e5e7eb;--shadow-color: rgba(0, 0, 0, .1);--transition-speed: .3s}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:var(--text-color);line-height:1.5}.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem;background-color:var(--background-color);background-image:radial-gradient(circle at 25% 25%,rgba(79,70,229,.2) 0%,transparent 50%),radial-gradient(circle at 75% 75%,rgba(79,70,229,.1) 0%,transparent 50%)}.auth-card{width:100%;max-width:450px;background-color:var(--card-background);border-radius:16px;box-shadow:0 8px 30px var(--shadow-color);overflow:hidden;position:relative;transform-origin:center;animation:cardAppear .5s ease-out forwards}@keyframes cardAppear{0%{opacity:0;transform:translateY(20px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.auth-header{padding:2rem 2rem 1rem;text-align:center}.logo{display:flex;align-items:center;justify-content:center;margin-bottom:1.5rem;color:var(--primary-color)}.logo h1{margin-left:.5rem;font-size:1.5rem;font-weight:700}.auth-header h2{font-size:1.5rem;margin-bottom:.5rem;font-weight:700;color:var(--text-color)}.auth-header p{color:var(--text-light);margin-bottom:1rem}.auth-form{padding:0 2rem 2rem}.form-content{opacity:0;animation:fadeIn .5s ease-out .2s forwards}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.form-group{margin-bottom:1.25rem;transition:all var(--transition-speed)}.form-group label{display:block;font-size:.875rem;font-weight:500;margin-bottom:.375rem}.form-group input{width:100%;padding:.75rem 1rem;font-size:1rem;line-height:1.5;color:var(--text-color);background-color:#fff;background-clip:padding-box;border:1px solid var(--border-color);border-radius:.5rem;transition:border-color var(--transition-speed),box-shadow var(--transition-speed)}.form-group input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px var(--secondary-color)}.form-group input::placeholder{color:var(--text-light);opacity:.7}.forgot-password{text-align:right;margin-top:-.5rem;margin-bottom:1.5rem}.forgot-password a{font-size:.875rem;color:var(--primary-color);text-decoration:none;transition:color var(--transition-speed)}.forgot-password a:hover{color:var(--primary-hover);text-decoration:underline}.submit-button{position:relative;width:100%;padding:.75rem 1.5rem;margin-top:1rem;font-size:1rem;font-weight:600;color:#fff;background-color:var(--primary-color);border:none;border-radius:.5rem;cursor:pointer;transition:all var(--transition-speed);overflow:hidden;z-index:1}.submit-button:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(45deg,transparent 0%,rgba(255,255,255,.2) 50%,transparent 100%);transform:translate(-100%);transition:transform .6s;z-index:-1}.submit-button:hover{background-color:var(--primary-hover)}.submit-button:hover:before{transform:translate(100%)}.submit-button:focus{outline:none;box-shadow:0 0 0 3px var(--secondary-color)}.submit-button:disabled{opacity:.7;cursor:not-allowed}.submit-button.loading{display:flex;justify-content:center;align-items:center}.spinner{width:1.25rem;height:1.25rem;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}.divider{display:flex;align-items:center;margin:1.5rem 0;color:var(--text-light)}.divider:before,.divider:after{content:"";flex:1;height:1px;background-color:var(--border-color)}.divider span{padding:0 1rem;font-size:.875rem}.google-button{display:flex;align-items:center;justify-content:center;width:100%;padding:.75rem 1.5rem;font-size:1rem;font-weight:500;color:var(--text-color);background-color:#fff;border:1px solid var(--border-color);border-radius:.5rem;cursor:pointer;transition:all var(--transition-speed)}.google-button:hover{background-color:#f9fafb;border-color:var(--text-light)}.google-button:focus{outline:none;box-shadow:0 0 0 3px var(--secondary-color)}.google-button svg{margin-right:.75rem}.auth-footer{padding:1.5rem 2rem;text-align:center;border-top:1px solid var(--border-color);background-color:#f9fafb}.toggle-auth{background:none;border:none;color:var(--primary-color);font-weight:600;cursor:pointer;transition:color var(--transition-speed)}.toggle-auth:hover{color:var(--primary-hover);text-decoration:underline}.form-group{animation-fill-mode:both}@keyframes slideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideOut{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-10px)}}@media (max-width: 480px){.auth-card{max-width:100%;margin:1rem;box-shadow:0 4px 15px var(--shadow-color)}.auth-header,.auth-form,.auth-footer{padding-left:1.5rem;padding-right:1.5rem}}.error-container{width:100%}.error-message{color:#e74c3c;font-size:14px;text-align:center;padding:5px 30px;border-radius:4px}.sidebar{position:fixed;top:0;left:0;height:100vh;background-color:#fff;box-shadow:2px 0 10px #0000001a;display:flex;flex-direction:column;transition:width .3s ease-in-out;z-index:100;overflow:hidden;scrollbar-width:none}.sidebar.collapsed{width:60px}.sidebar.expanded{width:220px}.sidebar-header h3{margin:0;font-size:1.1rem;font-weight:600;color:#333}.toggle-btn{background:none;border:none;color:#555;cursor:pointer;padding:5px;display:flex;align-items:center;justify-content:center;border-radius:5px;transition:background-color .2s,transform .2s}.toggle-btn:hover{background-color:#f0f0f0;color:#333}.toggle-btn:active{transform:scale(.95)}.sidebar-item span{margin-left:12px;white-space:nowrap;opacity:0;transform:translate(-10px);transition:opacity .3s ease,transform .3s ease}.expanded .sidebar-item span{opacity:1;transform:translate(0)}.sidebar-content .sidebar-item:nth-child(1) span{transition-delay:.05s}.sidebar-content .sidebar-item:nth-child(2) span{transition-delay:.1s}.sidebar-content .sidebar-item:nth-child(3) span{transition-delay:.15s}.sidebar-content .sidebar-item:nth-child(4) span{transition-delay:.2s}.sidebar-content .sidebar-item:nth-child(5) span{transition-delay:.25s}.sidebar-content .sidebar-item:nth-child(6) span{transition-delay:.3s}.sidebar-content .sidebar-item:nth-child(7) span{transition-delay:.35s}.export-dialog-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:10000}.export-dialog{background-color:#fff;border-radius:8px;box-shadow:0 4px 20px #00000026;width:450px;max-width:90vw;max-height:90vh;overflow-y:auto;scrollbar-width:none;display:flex;flex-direction:column}.export-dialog-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid #eee}.export-dialog-header h2{margin:0;font-size:18px;font-weight:600}.close-button{background:none;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:4px;border-radius:4px}.close-button:hover{background-color:#f5f5f5}.export-dialog-content{padding:20px;flex:1}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:500;font-size:14px}.file-name-input{width:100%;padding:8px 12px;border:1px solid #ddd;border-radius:4px;font-size:14px}.radio-group{display:flex;gap:20px}.radio-label{display:flex;align-items:center;gap:6px;cursor:pointer;font-size:14px}.quality-slider{width:100%;margin-top:8px}.preview-container{margin-top:24px}.preview-container h3{font-size:16px;margin-bottom:12px;font-weight:500}.canvas-preview{border:1px solid #ddd;border-radius:4px;padding:4px;display:flex;justify-content:center;align-items:center;height:150px;overflow:hidden;background-color:#f9f9f9}.canvas-preview img{max-width:100%;max-height:100%;object-fit:contain}.no-canvas{color:#888;font-style:italic;font-size:14px}.export-dialog-footer{display:flex;justify-content:flex-end;gap:12px;padding:16px 20px;border-top:1px solid #eee}.cancel-button,.export-button{padding:8px 16px;border-radius:4px;font-size:14px;font-weight:500;cursor:pointer;display:flex;align-items:center;gap:6px}.cancel-button{background-color:transparent;border:1px solid #ddd;color:#333}.export-button{background-color:#3b82f6;border:none;color:#fff}.export-button:hover{background-color:#2563eb}.export-button:disabled{background-color:#93c5fd;cursor:not-allowed}.collaborate-dialog-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:10000}.collaborate-dialog{background-color:#fff;border-radius:8px;box-shadow:0 4px 20px #00000026;width:600px;max-width:90vw;max-height:90vh;display:flex;flex-direction:column}.collaborate-dialog-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid #eee}.collaborate-dialog-header h2{margin:0;font-size:18px;font-weight:600}.close-button{background:none;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:6px;border-radius:4px;color:#666}.close-button:hover{background-color:#f5f5f5;color:#333}.collaborate-dialog-content{padding:20px;overflow-y:auto;flex:1;max-height:70vh}.whiteboard-info{margin-bottom:20px}.whiteboard-info h3{margin:0 0 8px;font-size:16px;font-weight:500}.owner-info{color:#666;font-size:14px;margin:0}.add-collaborator{margin-bottom:24px}.add-collaborator h3{margin:0 0 12px;font-size:16px;font-weight:500}.add-collaborator-form{display:flex;gap:10px}.email-input-group{flex:1;position:relative}.email-input-group input{width:100%;padding:8px 12px;border:1px solid #ddd;border-radius:4px;font-size:14px}.email-input-group input.error{border-color:#e74c3c}.error-message{color:#e74c3c;font-size:12px;margin-top:4px;position:absolute}.access-selector{width:140px}.access-selector select{width:100%;padding:8px 12px;border:1px solid #ddd;border-radius:4px;font-size:14px;background-color:#fff}.add-button{display:flex;align-items:center;gap:6px;padding:8px 16px;background-color:#3b82f6;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:14px;font-weight:500}.add-button:hover{background-color:#2563eb}.collaborators-list h3{margin:0 0 12px;font-size:16px;font-weight:500}.no-collaborators{color:#666;font-style:italic;padding:20px 0;text-align:center}.collaborators-table{width:100%;border-collapse:collapse}.collaborators-table th,.collaborators-table td{padding:12px;text-align:left;border-bottom:1px solid #eee}.collaborators-table th{font-weight:500;color:#666;font-size:14px}.collaborators-table tr:last-child td{border-bottom:none}.email-cell{width:40%}.access-cell{width:25%;position:relative}.access-badge{display:flex;align-items:center;gap:6px;padding:4px 8px;border-radius:4px;background-color:#f5f5f5;font-size:13px;width:fit-content}.access-select{position:absolute;opacity:0;top:0;left:0;width:100%;height:100%;cursor:pointer}.status-cell{width:20%}.status{display:flex;align-items:center;gap:6px;font-size:13px}.status.invited{color:#10b981}.status.pending{color:#f59e0b}.actions-cell{width:15%;text-align:right}.remove-button{background:none;border:none;color:#ef4444;cursor:pointer;padding:6px;border-radius:4px;display:flex}.remove-button:hover{background-color:#fee2e2}.collaborate-dialog-footer{display:flex;justify-content:flex-end;gap:12px;padding:16px 20px;border-top:1px solid #eee}.cancel-button{padding:8px 16px;background-color:transparent;border:1px solid #ddd;border-radius:4px;cursor:pointer;font-size:14px}.send-invites-button{display:flex;align-items:center;gap:8px;padding:8px 16px;background-color:#3b82f6;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:14px;font-weight:500}.send-invites-button:hover{background-color:#2563eb}.send-invites-button:disabled{background-color:#93c5fd;cursor:not-allowed}@media (max-width: 640px){.add-collaborator-form{flex-direction:column}.access-selector{width:100%}.collaborators-table{font-size:13px}.access-badge{font-size:12px;padding:3px 6px}}.table-body{overflow-y:scroll;scrollbar-width:none}.status-cell{text-align:center}.status-badge{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;border-radius:12px;font-size:.85em}.status-badge.sent{background-color:#e6f4ea;color:#137333}.status-badge.pending{background-color:#fef7e0;color:#b06000}.tool-bar{display:flex;gap:8px;padding:10px;background-color:#f5f5f5;border-radius:8px;box-shadow:0 2px 4px #0000001a;position:absolute;bottom:20px;left:50%;transform:translate(-50%);z-index:1000}.tool{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background-color:#fff;border-radius:8px;cursor:pointer;transition:all .2s ease}.tool:hover{background-color:#e0e0e0}.tool.active{background-color:#2196f3;color:#fff}.tool-container{position:relative}.color-picker-popup{position:absolute;top:-160px;left:50%;transform:translate(-50%);margin-top:8px;background-color:#fff;padding:12px;border-radius:8px;box-shadow:0 4px 8px #0003;z-index:1000;width:150px}.color-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:4px}.radius-slider-popup{position:absolute;top:-150px;left:50%;transform:translate(-50%);margin-top:8px;background-color:#fff;padding:12px;border-radius:8px;box-shadow:0 4px 8px #0003;z-index:1000;width:150px;text-align:center}.radius-value{margin-top:4px;font-size:14px}.shapes-list-popup{position:absolute;top:-180px;left:50%;transform:translate(-50%);margin-top:8px;background-color:#fff;padding:8px;border-radius:8px;box-shadow:0 4px 8px #0003;z-index:1000;width:120px}.shape-option{border-radius:4px}.shape-option:hover{background-color:#f0f0f0}.shape-option.active{background-color:#e3f2fd;color:#2196f3}.save-board-container{position:fixed;top:0;left:0;right:0;bottom:0;display:flex;justify-content:center;align-items:center;background-color:#00000080;z-index:1000}.save-board-form{background-color:#fff;border-radius:8px;box-shadow:0 4px 12px #00000026;padding:24px;width:100%;max-width:400px}.save-board-title{margin:0 0 20px;font-size:20px;font-weight:600;color:#333;text-align:center}.save-board-input-group{margin-bottom:20px}.save-board-label{display:block;font-size:14px;font-weight:500;margin-bottom:8px;color:#555}.save-board-input{width:100%;padding:10px 12px;font-size:16px;border:1px solid #ddd;border-radius:4px;transition:border-color .2s ease}.save-board-input:focus{border-color:#4f46e5;outline:none;box-shadow:0 0 0 2px #4f46e533}.save-board-input-error{border-color:#ef4444}.save-board-input-error:focus{box-shadow:0 0 0 2px #ef444433}.save-board-error-text{color:#ef4444;font-size:12px;margin-top:6px;margin-bottom:0}.save-board-buttons{display:flex;justify-content:space-between}.save-board-button{background-color:#4f46e5;color:#fff;border:none;border-radius:4px;padding:10px 16px;font-size:14px;font-weight:500;cursor:pointer;transition:background-color .2s ease;min-width:80px;display:flex;justify-content:center;align-items:center}.cancel-board-button{background-color:red;color:#fff;border:none;border-radius:4px;padding:10px 16px;font-size:14px;font-weight:500;cursor:pointer;transition:background-color .2s ease;min-width:80px;display:flex;justify-content:center;align-items:center}.save-board-button:hover{background-color:#4338ca}.save-board-button:focus{outline:none;box-shadow:0 0 0 2px #4f46e566}.save-board-button:disabled{background-color:#9ca3af;cursor:not-allowed}.save-board-spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:spin .8s linear infinite}@media (max-width: 600px){.save-board-form{max-width:90%;padding:20px}}.whiteboard-container{display:flex;flex-direction:column;height:100vh;width:100%;position:relative;overflow:hidden}.whiteboard-content{flex:1;position:relative;overflow:hidden}.tool-bar{position:absolute;bottom:20px;left:50%;transform:translate(-50%);z-index:1000}.sidebar{position:absolute;top:0;left:0;z-index:1000}.dashboard-container{display:flex;height:100vh;background-color:#f8f9fa;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}.sidebar{position:fixed;top:0;left:0;height:100vh;background-color:#fff;box-shadow:2px 0 10px #0000001a;display:flex;flex-direction:column;transition:width .3s ease-in-out;z-index:100;overflow:hidden;scrollbar-width:none;width:220px}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid #eaeaea}.sidebar-header h6{margin:0;font-size:.9rem;font-weight:500;color:#333;overflow:hidden;text-overflow:ellipsis}.sidebar-content{flex-grow:1;padding:16px 0;overflow-y:auto}.sidebar-item{display:flex;align-items:center;padding:20px 16px;cursor:pointer;color:#555;transition:background-color .2s ease,color .2s ease,transform .1s ease;border-radius:0;margin:4px 0}.sidebar-item:hover{background-color:#f5f5f5;color:#333}.sidebar-item:active{transform:scale(.98)}.sidebar-item span{margin-left:12px;white-space:nowrap}.sidebar-footer{padding:9px 0;border-top:0px solid #eaeaea}.logout{color:#e74c3c}.sidebar-item.logout:hover{background-color:#e74c3c1a}.sidebar-item.create-new{color:#2ecc71}.sidebar-item.create-new:hover{background-color:#2ecc711a}.dashboard-content{flex:1;margin-left:220px;padding:24px;overflow-y:auto}.dashboard-header{margin-bottom:24px}.dashboard-header h1{font-size:1.8rem;font-weight:600;color:#333;margin:0}.whiteboard-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}.whiteboard-card{background-color:#fff;border-radius:8px;box-shadow:0 2px 8px #00000014;overflow:hidden;transition:transform .2s ease,box-shadow .2s ease;position:relative;cursor:pointer}.whiteboard-card:hover{transform:translateY(-4px);box-shadow:0 4px 12px #0000001f}.whiteboard-preview{height:140px;background-color:#f0f0f0;display:flex;align-items:center;justify-content:center}.whiteboard-details{padding:16px}.whiteboard-details h3{margin:0 0 8px;font-size:1.1rem;font-weight:600;color:#333}.whiteboard-meta{display:flex;flex-direction:column;gap:4px}.meta-item{display:flex;align-items:center;font-size:.8rem;color:#777}.meta-item svg{margin-right:6px}.delete-button,.edit-button{position:absolute;top:8px;background:#ffffffe6;border:none;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;transition:opacity .2s ease,background-color .2s ease}.delete-button{right:8px;color:#e74c3c}.edit-button{right:48px;color:#3498db}.whiteboard-card:hover .delete-button,.whiteboard-card:hover .edit-button{opacity:1}.delete-button:hover{background-color:#e74c3c26}.edit-button:hover{background-color:#3498db26}@media (max-width: 768px){.sidebar{width:60px}.sidebar-item span,.sidebar-header h6{display:none}.dashboard-content{margin-left:60px}.whiteboard-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}}.no-whiteboards{display:flex;align-items:center;justify-content:center;height:100%;font-size:1.2rem;color:#999}.no-whiteboards svg{margin-right:8px}.no-whiteboards p{margin-left:20px;font-weight:500}.loading-spinner{display:flex;align-items:center;justify-content:center;height:100%}.loading-spinner svg{width:24px;height:24px;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.join-board-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000}.join-board-modal{background-color:#fff;border-radius:8px;width:90%;max-width:500px;box-shadow:0 4px 12px #00000026;padding:24px}.join-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.join-header h2{margin:0;font-size:1.5rem;font-weight:600;color:#333}.close-button{background:none;border:none;cursor:pointer;color:#777;display:flex;align-items:center;justify-content:center;padding:4px;border-radius:50%;transition:background-color .2s ease,color .2s ease}.close-button:hover{background-color:#f0f0f0;color:#333}.input-group{margin-bottom:20px}.input-group label{display:block;margin-bottom:8px;font-size:.9rem;color:#555}.input-group input{width:100%;padding:12px;border:1px solid #ddd;border-radius:4px;font-size:1rem;transition:border-color .2s ease}.input-group input:focus{outline:none;border-color:#3498db;box-shadow:0 0 0 2px #3498db33}.error-message{color:#e74c3c;font-size:.85rem;margin-top:8px;margin-bottom:0}.modal-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:24px}.cancel-button,.join-button{padding:10px 16px;border-radius:4px;font-size:.9rem;font-weight:500;cursor:pointer;transition:background-color .2s ease,transform .1s ease}.cancel-button{background-color:transparent;border:1px solid #ddd;color:#555}.cancel-button:hover{background-color:#f5f5f5}.join-button{background-color:#3498db;border:none;color:#fff;display:flex;align-items:center;gap:8px}.join-button:hover{background-color:#2980b9}.join-button:active{transform:scale(.98)}@media (max-width: 480px){.join-board-modal{padding:16px}.modal-actions{flex-direction:column}.cancel-button,.join-button{width:100%}}.loader-container{display:flex;align-items:center;justify-content:center;height:100%}.spinner{width:40px;height:40px;border:4px solid #ccc;border-top-color:#3498db;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-container{display:flex;justify-content:center;align-items:center;height:100vh;font-size:1.2rem;color:#333;background-color:#f8f9fa}.error-container{display:flex;justify-content:center;align-items:center;padding:16px;width:100%}.error-content{display:flex;align-items:center;background-color:#fee2e2;border:1px solid #fecaca;border-left:4px solid #ef4444;border-radius:4px;box-shadow:0 1px 3px #0000001a;color:#b91c1c;max-width:500px;padding:12px 16px;width:100%}.error-icon{flex-shrink:0;height:24px;margin-right:12px;width:24px}.error-icon svg{color:#ef4444;height:100%;width:100%}.error-message{display:flex;justify-content:center;align-items:center;height:100%;padding-left:40px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:14px;line-height:1.5}@keyframes errorAppear{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.error-container{animation:errorAppear .3s ease-out forwards}@media (max-width: 640px){.error-content{max-width:100%}}