:root{--hdc-bg-primary: #e3f0f7;--hdc-bg-overlay: rgba(213, 232, 243, .92);--hdc-bg-button: rgba(205, 228, 240, .6);--hdc-bg-button-hover: rgba(184, 220, 237, .85);--hdc-text-primary: #2d4a5c;--hdc-text-secondary: rgba(93, 117, 137, .85);--hdc-accent-success: #a8dfc4;--hdc-accent-error: #f4b8b8;--hdc-accent-warning: #fdd5b8;--hdc-border-color: rgba(184, 212, 230, .5);--hdc-spacing-xs: 4px;--hdc-spacing-sm: 8px;--hdc-spacing-md: 16px;--hdc-spacing-lg: 24px;--hdc-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--hdc-font-size-sm: 12px;--hdc-font-size-md: 14px;--hdc-font-size-lg: 18px;--hdc-radius-sm: 4px;--hdc-radius-md: 8px;--hdc-transition-fast: .15s ease;--hdc-transition-normal: .2s ease}body.hdc-app{margin:0;padding:0;overflow:hidden;font-family:var(--hdc-font-family);background:var(--hdc-bg-primary);color:var(--hdc-text-primary)}#app{width:100vw;height:100vh;margin:0;padding:0;overflow:hidden;position:relative}.hdc-button{background:var(--hdc-bg-button);color:var(--hdc-text-primary);border:1px solid var(--hdc-border-color);border-radius:var(--hdc-radius-sm);padding:var(--hdc-spacing-sm) var(--hdc-spacing-md);font-size:var(--hdc-font-size-md);cursor:pointer;transition:background var(--hdc-transition-fast),opacity var(--hdc-transition-normal);display:flex;align-items:center;justify-content:center}.hdc-button:hover:not(:disabled){background:var(--hdc-bg-button-hover)}.hdc-button:disabled{opacity:.4;cursor:not-allowed}@keyframes hdc-button-flash{0%,to{background:var(--hdc-bg-button)}50%{background:var(--hdc-accent-warning, #fdd5b8)}}.hdc-button--flashing{animation:hdc-button-flash .4s ease-in-out 3}.hdc-hud-overlay{position:absolute;top:0;left:0;right:0;bottom:0;pointer-events:none;z-index:100}.hdc-hud-overlay>*{pointer-events:auto}.hdc-control-group{display:flex;flex-direction:column;gap:var(--hdc-spacing-sm)}.hdc-control-label{color:var(--hdc-text-primary);font-size:var(--hdc-font-size-sm);margin-bottom:var(--hdc-spacing-xs)}.hdc-notification{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);padding:var(--hdc-spacing-lg) calc(var(--hdc-spacing-lg) * 2);border-radius:var(--hdc-radius-md);font-size:var(--hdc-font-size-lg);font-weight:700;text-align:center;box-shadow:0 4px 16px #00000080;display:none}.hdc-notification--success{background:var(--hdc-accent-success);color:var(--hdc-text-primary)}.hdc-notification--error{background:var(--hdc-accent-error);color:var(--hdc-text-primary)}.hdc-layer-indicator{position:absolute;top:var(--hdc-spacing-md);left:50%;transform:translate(-50%);background:var(--hdc-bg-overlay);color:var(--hdc-text-primary);padding:var(--hdc-spacing-sm) var(--hdc-spacing-md);border-radius:var(--hdc-radius-sm);font-size:var(--hdc-font-size-md);display:none;box-shadow:0 2px 8px #00000080}.hdc-select{background:var(--hdc-bg-button);color:var(--hdc-text-primary);border:1px solid var(--hdc-border-color);border-radius:var(--hdc-radius-sm);padding:var(--hdc-spacing-sm);font-size:var(--hdc-font-size-md);cursor:pointer}.hdc-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--hdc-bg-overlay);display:none;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.hdc-modal-dialog{background:#f5f9fcfa;border-radius:var(--hdc-radius-md);padding:calc(var(--hdc-spacing-lg) * 1.33);min-width:320px;max-width:480px;box-shadow:0 8px 32px #0000004d;border:1px solid var(--hdc-border-color);font-family:var(--hdc-font-family)}.hdc-modal-message{font-size:16px;line-height:1.5;margin-bottom:var(--hdc-spacing-lg);text-align:center;color:var(--hdc-text-primary)}.hdc-modal-buttons{display:flex;gap:12px;justify-content:center}.hdc-modal-button{border:none;padding:10px 24px;border-radius:var(--hdc-radius-sm);font-size:var(--hdc-font-size-md);font-weight:600;cursor:pointer;transition:background var(--hdc-transition-normal);min-width:100px;color:var(--hdc-text-primary)}.hdc-modal-button--cancel{background:#c8d8e4}.hdc-modal-button--cancel:hover{background:#b0c7d9}.hdc-modal-button--confirm{background:#7db3d8}.hdc-modal-button--confirm:hover{background:#5a9fc9}.hdc-message-panel{position:fixed;top:0;right:0;bottom:28px;width:280px;background:#e8eef9f5;border-left:1px solid rgba(184,212,230,.5);display:flex;flex-direction:column;font-family:var(--hdc-font-family);z-index:100;transition:transform .3s ease-in-out}.hdc-message-panel.collapsed{transform:translate(100%)}.hdc-message-panel-header{padding:12px 16px;background:#d5e8f399;border-bottom:1px solid rgba(184,212,230,.5);display:flex;justify-content:space-between;align-items:center;flex-shrink:0;flex-wrap:wrap;gap:var(--hdc-spacing-sm)}.hdc-message-tab{position:fixed;right:0;top:50%;transform:translateY(50%);background:var(--hdc-bg-overlay);color:var(--hdc-text-primary);padding:8px 16px;cursor:pointer;z-index:99;white-space:nowrap;border-radius:0;text-orientation:mixed;font-size:var(--hdc-font-size-md);font-weight:600;border:1px solid rgba(184,212,230,.5);border-right:none;transition:background var(--hdc-transition-normal)}.hdc-message-tab:hover{background:#b8dcede6}.hdc-message-panel:not(.collapsed) .hdc-message-tab{display:none}.hdc-message-panel-header-left{display:flex;flex-direction:column;gap:var(--hdc-spacing-xs)}.hdc-message-panel-title{color:var(--hdc-text-primary);font-weight:600;font-size:var(--hdc-font-size-md);cursor:pointer;-webkit-user-select:none;user-select:none}.hdc-message-panel-title:hover{color:var(--hdc-text-primary)}.hdc-message-panel-checkbox-container{display:flex;align-items:center;gap:6px}.hdc-message-panel-checkbox{cursor:pointer}.hdc-message-panel-checkbox-label{color:var(--hdc-text-secondary);font-size:11px;cursor:pointer}.hdc-message-panel-content{flex:1;overflow-y:auto;overflow-x:hidden;padding:var(--hdc-spacing-sm)}.hdc-message-panel.collapsed .hdc-message-panel-content{display:none}.hdc-message-panel-content::-webkit-scrollbar{width:8px}.hdc-message-panel-content::-webkit-scrollbar-track{background:#b8d4e633}.hdc-message-panel-content::-webkit-scrollbar-thumb{background:#b8d4e680;border-radius:var(--hdc-radius-sm)}.hdc-message-panel-content::-webkit-scrollbar-thumb:hover{background:#8ca9bdb3}.hdc-message-list{display:flex;flex-direction:column;gap:var(--hdc-spacing-xs)}.hdc-message-item{padding:6px 8px;margin-bottom:var(--hdc-spacing-xs);border-radius:var(--hdc-radius-sm);font-size:var(--hdc-font-size-sm);line-height:1.4;word-wrap:break-word}.hdc-message-item--log{color:var(--hdc-text-secondary)}.hdc-message-item--user{color:var(--hdc-text-primary);background:#b8d4e64d}.hdc-message-timestamp{color:var(--hdc-text-secondary);font-size:10px;margin-right:8px}.hdc-sculptor-badge{position:fixed;bottom:0;left:0;right:0;height:28px;background:#fff;color:#1a1a1a;font-size:12px;display:flex;align-items:center;justify-content:center;z-index:50;border-top:1px solid #e0e0e0}.hdc-sculptor-badge a{color:#1a1a1a;text-decoration:none;margin-left:4px;font-weight:600}.hdc-sculptor-badge a:hover{text-decoration:underline}.hdc-welcome-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--hdc-bg-overlay);display:none;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.hdc-welcome-dialog{background:#f5f9fcfa;border-radius:var(--hdc-radius-md);padding:calc(var(--hdc-spacing-lg) * 2);max-width:500px;width:90%;box-shadow:0 8px 32px #0000004d;border:1px solid var(--hdc-border-color);font-family:var(--hdc-font-family)}.hdc-welcome-title{font-size:24px;font-weight:700;margin-bottom:16px;color:var(--hdc-text-primary);text-align:center}.hdc-welcome-content{line-height:1.6;margin-bottom:24px;color:var(--hdc-text-primary);font-size:15px}.hdc-welcome-content a{color:#5a9fc9;text-decoration:underline}.hdc-welcome-content a:hover{color:#7db3d8}.hdc-welcome-button-container{display:flex;justify-content:center}.hdc-welcome-button{background:#7db3d8;color:var(--hdc-text-primary);border:none;padding:12px 32px;border-radius:var(--hdc-radius-sm);font-size:16px;font-weight:600;cursor:pointer;transition:background var(--hdc-transition-normal)}.hdc-welcome-button:hover{background:#5a9fc9}.hdc-welcome-warning{background:#fdd5b866;border:1px solid var(--hdc-accent-warning, #fdd5b8);border-radius:var(--hdc-radius-sm);padding:var(--hdc-spacing-sm) var(--hdc-spacing-md);margin-top:var(--hdc-spacing-md);font-size:var(--hdc-font-size-sm);color:var(--hdc-text-primary)}