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select{opacity:.5;cursor:not-allowed}.text-edit-input{position:absolute;background:transparent;border:none;border-radius:0;padding:0;outline:none;box-shadow:none;z-index:200;pointer-events:auto;color:transparent;caret-color:#6366f1;min-width:2px!important}.text-edit-input:focus{border:none}.text-edit-input::placeholder{color:transparent}#canvas-container.tool-select canvas{cursor:default}#canvas-container.tool-eraser canvas{cursor:pointer}#canvas-container.tool-freehand canvas{cursor:crosshair}#canvas-container.dragging canvas{cursor:grabbing}.shape-settings-popup{position:absolute;background:#fff;border:1px solid #e5e5e5;border-radius:12px;padding:16px;min-width:200px;box-shadow:0 8px 24px #00000026;z-index:1001;pointer-events:auto}.popup-header{font-size:.9rem;font-weight:600;color:#18181b;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid #f4f4f5}.popup-row{display:flex;align-items:center;gap:10px;margin-bottom:12px}.popup-row:last-child{margin-bottom:0}.popup-row label{font-size:.85rem;font-weight:500;color:#52525b;min-width:80px;flex-shrink:0}.popup-row input[type=color]{width:36px;height:28px;padding:0;border:1px solid #e5e5e5;border-radius:6px;cursor:pointer;background:none}.popup-row input[type=color]::-webkit-color-swatch-wrapper{padding:2px}.popup-row input[type=color]::-webkit-color-swatch{border-radius:4px;border:none}.popup-row input[type=color]:disabled{opacity:.4;cursor:not-allowed}.popup-row input[type=range]{width:80px;cursor:pointer}.popup-row input[type=checkbox]{width:18px;height:18px;cursor:pointer;accent-color:#6366f1}.popup-row span{font-size:.8rem;color:#71717a;min-width:36px}.popup-row select{padding:6px 10px;border:1px solid #e5e5e5;border-radius:6px;font-size:.85rem;background:#fafafa;cursor:pointer;flex:1}.popup-row select:focus{outline:none;border-color:#6366f1}.shape-control-btn.settings{color:#6366f1;border-color:#a5b4fc;font-size:16px}.shape-control-btn.settings:hover{background:#eef2ff;border-color:#818cf8}.popup-divider{height:1px;background:#ffffff1a;margin:8px 0}.layer-controls{display:flex;gap:4px;justify-content:center}.layer-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:#ffffff0d;border:1px solid rgba(255,255,255,.15);border-radius:6px;color:#a1a1aa;cursor:pointer;transition:all .15s}.layer-btn:hover{background:#6366f133;border-color:#6366f1;color:#fff}.layer-btn:active{transform:scale(.95)}.layer-btn svg{width:14px;height:14px}.app-modal{position:fixed;top:0;right:0;bottom:0;left:0;z-index:2000;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:all .2s ease}.app-modal.active{opacity:1;visibility:visible}.app-modal .modal-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.app-modal .modal-content{position:relative;background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:28px;width:100%;max-width:440px;max-height:90vh;overflow-y:auto;transform:translateY(20px) scale(.95);transition:transform .2s ease;box-shadow:0 20px 60px #00000080}.app-modal.active .modal-content{transform:translateY(0) scale(1)}.app-modal .modal-close{position:absolute;top:16px;right:16px;width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:#ffffff0d;border:1px solid var(--border);border-radius:8px;color:var(--text-muted);cursor:pointer;transition:all .2s}.app-modal .modal-close:hover{background:#ffffff1a;color:var(--text-primary)}.app-modal h2{font-size:1.25rem;font-weight:600;color:var(--text-primary);margin-bottom:8px;padding-right:40px}.app-modal>.modal-content>p{color:var(--text-secondary);font-size:.9rem;margin-bottom:20px;line-height:1.5}.modal-input-group{margin-bottom:16px}.modal-input-group label{display:block;font-size:.85rem;font-weight:500;color:var(--text-secondary);margin-bottom:8px}.modal-input{width:100%;padding:12px 14px;background:#ffffff0d;border:1px solid var(--border);border-radius:10px;font-size:.95rem;color:var(--text-primary);transition:all .2s;font-family:inherit}.modal-input::placeholder{color:var(--text-muted)}.modal-input:focus{outline:none;border-color:var(--primary);background:#6366f11a;box-shadow:0 0 0 3px #6366f126}.modal-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:24px}.modal-btn{padding:10px 20px;border-radius:10px;font-size:.9rem;font-weight:500;cursor:pointer;transition:all .2s;border:none;font-family:inherit}.modal-btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;box-shadow:0 2px 12px #6366f14d}.modal-btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 16px #6366f166}.modal-btn-secondary{background:#ffffff0d;color:var(--text-secondary);border:1px solid var(--border)}.modal-btn-secondary:hover{background:#ffffff1a;color:var(--text-primary)}.modal-btn-danger{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;box-shadow:0 2px 12px #ef44444d}.modal-btn-danger:hover{transform:translateY(-1px);box-shadow:0 4px 16px #ef444466}.share-link-row{display:flex;gap:8px}.share-link-row .modal-input{flex:1;font-family:monospace;font-size:.8rem}.modal-copy-btn{width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:var(--primary);border:none;border-radius:10px;color:#fff;cursor:pointer;transition:all .2s;flex-shrink:0}.modal-copy-btn:hover{background:var(--primary-dark)}.permission-options{display:flex;flex-direction:column;gap:8px}.permission-option{display:flex;align-items:flex-start;gap:12px;padding:14px;background:#ffffff08;border:1px solid var(--border);border-radius:10px;cursor:pointer;transition:all .2s}.permission-option:hover{background:#ffffff0f}.permission-option input[type=radio]{margin-top:2px;accent-color:var(--primary)}.permission-option input[type=radio]:checked+.permission-content{color:var(--text-primary)}.permission-content{display:flex;flex-direction:column;gap:2px}.permission-title{font-size:.9rem;font-weight:500;color:var(--text-primary)}.permission-desc{font-size:.8rem;color:var(--text-muted)}.checkbox-row{display:flex;align-items:center;gap:10px;cursor:pointer;font-size:.9rem;color:var(--text-secondary)}.checkbox-row input[type=checkbox]{accent-color:var(--primary);width:16px;height:16px}.modal-warning{display:flex;align-items:flex-start;gap:10px;padding:12px;background:#fbbf241a;border:1px solid rgba(251,191,36,.3);border-radius:8px;font-size:.85rem;color:#fbbf24;margin-top:16px}.modal-warning svg{flex-shrink:0;margin-top:1px}.extract-text-modal{display:flex;flex-direction:column;gap:16px}.extract-tabs{display:flex;gap:8px;border-bottom:1px solid var(--border);padding-bottom:8px}.extract-tab{padding:8px 16px;background:transparent;border:none;border-radius:6px;color:var(--text-muted);font-size:.9rem;font-weight:500;cursor:pointer;transition:all .2s}.extract-tab:hover{background:#ffffff0d;color:var(--text-secondary)}.extract-tab.active{background:var(--primary);color:#fff}.extract-tab-content{display:none}.extract-tab-content.active{display:block}.extract-textarea{width:100%;min-height:200px;padding:12px;background:#0003;border:1px solid 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.toolbar-panel,.read-only-mode .options-panel,.read-only-mode #clear-board,.read-only-mode .shape-control-btn{display:none!important}.read-only-mode #canvas-area{padding-bottom:24px}.read-only-mode canvas{cursor:default!important}.read-only-banner{position:fixed;bottom:24px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:10px;padding:12px 20px;background:#fbbf2426;border:1px solid rgba(251,191,36,.3);border-radius:12px;color:#fbbf24;font-size:.9rem;font-weight:500;z-index:90}.read-only-banner svg{flex-shrink:0}body:not(.read-only-mode) .read-only-banner{display:none}.zoom-panel{position:fixed;top:72px;left:24px;display:flex;align-items:center;gap:4px;padding:8px;background:#1a1a2ef2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:10px;box-shadow:0 4px 20px #0000004d;z-index:80}.zoom-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;background:transparent;border:none;border-radius:6px;color:#a1a1aa;cursor:pointer;transition:all .15s ease}.zoom-btn:hover{background:#ffffff1a;color:#fff}.zoom-btn:active{transform:scale(.95)}.zoom-level-btn{display:flex;align-items:center;justify-content:center;min-width:60px;height:32px;padding:0 8px;background:transparent;border:none;border-radius:6px;color:#fff;font-size:.85rem;font-weight:500;font-family:Inter,sans-serif;cursor:pointer;transition:all .15s ease}.zoom-level-btn:hover{background:#ffffff1a}.zoom-divider{width:1px;height:20px;background:#ffffff26;margin:0 4px}#board{touch-action:none;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}@media (pointer: coarse){.tool-btn{width:44px;height:44px;min-width:44px;min-height:44px}.tool-btn svg{width:22px;height:22px}.toolbar-panel{padding:10px;gap:6px}.tool-group{gap:4px}.board-btn{padding:10px 16px;font-size:.9rem}.add-board-btn,.icon-btn{width:44px;height:44px}.shape-control-btn{width:44px;height:44px;font-size:20px}.zoom-btn{width:44px;height:44px}.zoom-level-btn{height:44px;min-width:70px}.preset-btn{width:36px;height:36px}.options-panel input[type=color]{width:40px;height:40px}input[type=range]{height:8px}input[type=range]::-webkit-slider-thumb{width:24px;height:24px}input[type=range]::-moz-range-thumb{width:24px;height:24px}}@media (max-width: 768px){.room-header{padding:8px 12px}.header-left .logo-link span{display:none}.header-center{flex:1;max-width:50%;overflow-x:auto;-webkit-overflow-scrolling:touch}.board-tabs{flex-wrap:nowrap;gap:4px}.toolbar-panel{max-width:calc(100vw - 24px);left:50%;transform:translate(-50%);overflow-x:auto;-webkit-overflow-scrolling:touch}.options-panel{max-width:calc(100vw - 24px);left:50%;transform:translate(-50%);bottom:76px}@media (max-width: 400px){.toolbar-panel{flex-direction:column;align-items:stretch}.tool-group{flex-wrap:wrap;justify-content:center}.toolbar-divider{width:100%;height:1px;margin:4px 0}}}@media (max-width: 480px){#floating-panel{display:none}.mobile-panel-toggle{display:block}}@media (max-height: 500px) and (orientation: landscape){.toolbar-panel{flex-direction:row;max-height:calc(100vh - 100px)}.room-header{padding:4px 12px}}@supports (padding: env(safe-area-inset-bottom)){.room-header{padding-top:max(8px,env(safe-area-inset-top))}.toolbar-panel{padding-bottom:max(12px,env(safe-area-inset-bottom))}.read-only-banner{bottom:max(24px,calc(env(safe-area-inset-bottom) + 12px))}}@media (max-width: 768px){#side-panel{position:fixed;top:56px;right:-280px;width:280px;height:calc(100vh - 56px);z-index:500;transition:right .3s ease;box-shadow:-4px 0 20px #0003}#side-panel:not(.hidden){right:0}#side-panel.hidden{right:-280px}#canvas-area{right:0!important}#side-panel:not(.hidden):before{content:"";position:fixed;left:0;top:0;right:280px;bottom:0;background:#0000004d;z-index:-1}.zoom-panel{padding:6px;gap:4px;left:12px;top:68px}.zoom-btn{width:36px;height:36px}.zoom-level-btn{padding:6px 10px;font-size:.75rem}}@media (max-width: 480px){#side-panel{width:100%;right:-100%}#side-panel:not(.hidden){right:0}#side-panel.hidden{right:-100%}#side-panel:not(.hidden):before{display:none}}