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var(--border-light);border-radius:4px;flex-wrap:wrap;gap:14px 20px;padding:10px 14px;display:flex}.playground-chip-group{flex-direction:column;gap:6px;display:flex;position:relative}.playground-chip-group:not(:last-child):after{content:"";background:var(--border-light);width:1px;position:absolute;top:2px;bottom:2px;right:-10px}.playground-chip-category{font-family:var(--font-ui);color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;-webkit-user-select:none;user-select:none;align-items:center;gap:4px;padding-left:1px;font-size:10px;font-weight:600;display:inline-flex}.playground-chip-row{flex-wrap:wrap;gap:5px;display:flex}.playground-chip{background:var(--bg-editor);border:1px solid var(--border-light);font-family:var(--font-mono);color:var(--text-secondary);cursor:pointer;white-space:nowrap;border-radius:3px;align-items:center;gap:5px;padding:4px 10px;font-size:11.5px;transition:border-color .15s,color .15s,background .15s,box-shadow .15s;display:inline-flex}.playground-chip:hover{border-color:var(--accent);color:var(--accent);background:var(--bg-primary);box-shadow:0 1px 3px color-mix(in srgb, var(--accent) 12%, transparent)}.playground-chip:active{transform:scale(.97)}.playground-chip.active{border-color:var(--accent);color:var(--accent);background:color-mix(in srgb, var(--accent) 8%, var(--bg-editor))}.sql-editor{border:1px solid var(--border-light);background:var(--bg-editor);font-family:var(--font-mono);font-size:var(--font-size-query);border-radius:4px;line-height:1.7;transition:border-color .2s,box-shadow .2s;overflow:hidden}.sql-editor:focus-within{border-color:var(--accent);box-shadow:0 0 0 1px color-mix(in srgb, var(--accent) 25%, transparent)}.sql-editor-toolbar{background:var(--bg-table-header);border-bottom:1px solid var(--border-light);height:28px;font-family:var(--font-ui);color:var(--text-secondary);-webkit-user-select:none;user-select:none;align-items:center;gap:6px;padding:0 10px;font-size:11px;display:flex}.sql-editor-toolbar-icon{color:var(--success)}.sql-editor-toolbar-label{font-weight:600}.sql-editor-toolbar-hint{color:var(--text-muted);margin-left:auto;font-size:10px}.sql-editor-body{min-height:60px;display:flex}.sql-editor-gutter{border-right:1px solid var(--border-light);min-width:38px;color:var(--text-muted);font-size:var(--font-size-query);-webkit-user-select:none;user-select:none;flex-direction:column;flex-shrink:0;align-items:flex-end;padding:12px 10px;line-height:1.7;display:flex}.sql-editor-code-area{flex:1;position:relative;overflow:auto}.sql-editor-highlight,.sql-editor-textarea{font-family:var(--font-mono);font-size:var(--font-size-query);white-space:pre-wrap;word-break:break-word;tab-size:2;border:none;margin:0;padding:12px 14px;line-height:1.7}.sql-editor-highlight{pointer-events:none;color:var(--text-primary);position:absolute;inset:0;overflow:hidden}.sql-editor-textarea{color:#0000;width:100%;height:100%;min-height:60px;caret-color:var(--text-primary);resize:vertical;z-index:1;-webkit-text-fill-color:transparent;background:0 0;outline:none;position:relative}.sql-editor-textarea::placeholder{color:var(--text-muted);-webkit-text-fill-color:var(--text-muted)}.sql-editor-actions{border-top:1px solid var(--border-light);background:var(--bg-table-header);gap:8px;padding:8px 10px;display:flex}.sql-editor-btn{border:1px solid var(--border-light);font-family:var(--font-ui);cursor:pointer;border-radius:3px;align-items:center;gap:5px;padding:4px 14px;font-size:12px;transition:background .15s,border-color .15s,color .15s,opacity .15s,transform .1s;display:inline-flex}.sql-editor-btn:disabled{opacity:.4;cursor:default}.sql-editor-btn:active:not(:disabled){transform:scale(.96)}.sql-editor-btn.execute{background:var(--success);border-color:var(--success);color:#fff}.sql-editor-btn.execute:hover:not(:disabled){filter:brightness(1.1)}.sql-editor-btn.clear{background:var(--bg-editor);color:var(--text-secondary)}.sql-editor-btn.clear:hover:not(:disabled){border-color:var(--text-muted);color:var(--text-primary)}.playground-output{animation:.25s ease-out playground-output-in}@keyframes playground-output-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.playground-error{background:color-mix(in srgb, #c62828 6%, var(--bg-editor));border:1px solid color-mix(in srgb, #c62828 25%, var(--border-light));font-family:var(--font-mono);color:#c62828;border-left:3px solid #c62828;border-radius:4px;align-items:flex-start;gap:10px;padding:10px 14px;font-size:13px;line-height:1.5;animation:.2s ease-out playground-output-in;display:flex}[data-theme=dark] .playground-error{color:#ef9a9a;background:color-mix(in srgb, #c62828 10%, var(--bg-editor));border-color:color-mix(in srgb, #c62828 20%, var(--border-light));border-left-color:#ef5350}.playground-error-icon{flex-shrink:0;margin-top:1px}.playground-error-body{flex:1;min-width:0}.playground-error-code{font-weight:700}.playground-null{color:var(--text-muted);font-size:.9em;font-style:italic}.playground-key-pk{font-size:10px;font-weight:700;font-family:var(--font-mono);letter-spacing:.03em;color:#f9a825;background:#f9a8252e;border-radius:3px;align-items:center;gap:3px;padding:1px 6px;display:inline-flex}[data-theme=dark] .playground-key-pk{color:#ffd54f;background:#ffd54f24}.playground-key-fk{font-size:10px;font-weight:600;font-family:var(--font-mono);letter-spacing:.02em;background:color-mix(in srgb, var(--accent) 12%, transparent);color:var(--accent);border-radius:3px;align-items:center;gap:3px;padding:1px 6px;display:inline-flex}.playground-type{color:var(--sql-keyword);font-weight:500}.playground-table-type{font-size:10px;font-weight:600;font-family:var(--font-mono);letter-spacing:.02em;border-radius:3px;padding:1px 7px;display:inline-flex}.playground-table-type.base{background:color-mix(in srgb, var(--success) 12%, transparent);color:var(--success)}.playground-table-type.junction{background:color-mix(in srgb, var(--sql-function) 12%, transparent);color:var(--sql-function)}[data-theme=dark] .playground-table-type.junction{background:color-mix(in srgb, var(--sql-function) 18%, transparent)}.playground-empty{text-align:center;color:var(--text-muted);font-family:var(--font-ui);border:1px dashed var(--border-light);border-radius:4px;justify-content:center;align-items:center;gap:8px;padding:24px 16px;font-size:13px;animation:.2s ease-out playground-output-in;display:flex}.playground-empty-icon{opacity:.5}.playground-glitch{animation:.6s ease-out playground-glitch-flash}@keyframes playground-glitch-flash{0%,to{filter:none}10%{filter:hue-rotate(90deg)brightness(1.2)}20%{filter:none}30%{filter:hue-rotate(-60deg)brightness(.8)}40%{filter:none}50%{filter:invert(.1)hue-rotate(180deg)}60%{filter:none}}.playground-error.shake{animation:.4s ease-out playground-shake}@keyframes playground-shake{0%,to{transform:translate(0)}15%{transform:translate(-6px)}30%{transform:translate(5px)}45%{transform:translate(-4px)}60%{transform:translate(3px)}75%{transform:translate(-2px)}}@media (width<=767px){.playground-chip-groups{gap:10px 14px;padding:8px 10px}.playground-chip-group:not(:last-child):after{display:none}.playground-chip-category{font-size:9px}.playground-chip-row{gap:4px}.playground-chip{padding:3px 8px;font-size:10.5px}.sql-editor{font-size:12px;line-height:1.6}.sql-editor-body{min-height:50px}.sql-editor-gutter{min-width:30px;padding:8px 6px;font-size:12px;line-height:1.6}.sql-editor-highlight,.sql-editor-textarea{padding:8px 10px;font-size:12px;line-height:1.6}.sql-editor-toolbar{height:24px;padding:0 8px;font-size:10px}.sql-editor-actions{padding:6px 8px}.sql-editor-btn{padding:3px 10px;font-size:11px}.playground-error{padding:8px 10px;font-size:12px}.playground-empty{padding:18px 12px}}.contact-form-panel{background:var(--bg-editor);border:1px solid var(--border-light);border-radius:4px;overflow:hidden}.contact-form-header{background:var(--bg-table-header);border-bottom:1px solid var(--border-light);height:30px;font-family:var(--font-ui);color:var(--text-secondary);-webkit-user-select:none;user-select:none;align-items:center;gap:6px;padding:0 14px;font-size:11px;font-weight:600;display:flex}.contact-form-header-icon{color:var(--accent)}.contact-form-body{flex-direction:column;gap:20px;padding:28px 32px;display:flex}.contact-field{flex-direction:column;gap:6px;display:flex}.contact-field-label{font-family:var(--font-mono);color:var(--text-muted);-webkit-user-select:none;user-select:none;font-size:12px}.contact-field-label .param-name{color:var(--sql-keyword);font-weight:500}.contact-field-label .param-type{color:var(--text-muted);margin-left:4px;font-size:11px}.contact-input,.contact-textarea{background:var(--bg-primary);border:1px solid var(--border-light);width:100%;font-family:var(--font-mono);color:var(--text-primary);border-radius:3px;padding:10px 14px;font-size:13px;line-height:1.6;transition:border-color .15s,box-shadow .15s}.contact-input:focus,.contact-textarea:focus{border-color:var(--accent);box-shadow:0 0 0 2px color-mix(in srgb, var(--accent) 15%, transparent);outline:none}.contact-input::placeholder,.contact-textarea::placeholder{color:var(--text-muted);font-style:italic}.contact-textarea{resize:vertical;min-height:120px}.contact-submit-row{align-items:center;gap:14px;padding-top:6px;display:flex}.contact-submit-btn{background:var(--accent);color:#fff;font-family:var(--font-mono);cursor:pointer;border:none;border-radius:3px;align-items:center;gap:8px;padding:10px 20px;font-size:12px;font-weight:600;transition:background-color .15s,box-shadow .15s;display:inline-flex}.contact-submit-btn:hover{background:var(--accent-hover);box-shadow:0 2px 8px color-mix(in srgb, var(--accent) 30%, transparent)}.contact-submit-btn:active{box-shadow:0 1px 3px color-mix(in srgb, var(--accent) 20%, transparent)}.contact-submit-btn-icon{opacity:.9;flex-shrink:0}.contact-submit-hint{font-family:var(--font-mono);color:var(--text-muted);font-size:11px}@media (width<=767px){.contact-form-body{padding:20px 16px}.contact-input,.contact-textarea{padding:10px 12px;font-size:16px}.contact-submit-row{flex-direction:column;align-items:stretch}.contact-submit-btn{justify-content:center;padding:10px 16px}.contact-submit-hint{text-align:center}}