:root{--bg-color:#f8fafc;--header-bg:#fff;--text-primary:#1e293b;--text-secondary:#64748b;--border-color:#e2e8f0;--accent-color:#3b82f6;--accent-hover:#1d4ed8;--editor-bg:#fff;--console-bg:#f1f5f9;--console-text:#334155;--console-error:#ef4444}.dark{--bg-color:#0f172a;--header-bg:#1e293b;--text-primary:#f8fafc;--text-secondary:#94a3b8;--border-color:#334155;--accent-color:#3b82f6;--accent-hover:#60a5fa;--editor-bg:#1e293b;--console-bg:#1e293b;--console-text:#e2e8f0;--console-error:#f87171}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);height:100vh;font-family:Inter,system-ui,-apple-system,sans-serif;overflow:hidden}#root{height:100%}.app-container{flex-direction:column;height:100%;display:flex}.header{background-color:var(--header-bg);border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:.75rem 1.5rem;display:flex}.header-title{color:var(--text-primary);align-items:center;gap:.5rem;font-size:1.125rem;font-weight:600;display:flex}.header-controls{align-items:center;gap:1rem;display:flex}.lang-select{border:1px solid var(--border-color);background-color:var(--bg-color);color:var(--text-primary);cursor:pointer;border-radius:.375rem;outline:none;padding:.5rem;font-size:.875rem}.run-btn{background-color:var(--accent-color);color:#fff;cursor:pointer;border:none;border-radius:.375rem;align-items:center;gap:.5rem;padding:.5rem 1rem;font-weight:500;transition:background-color .2s;display:flex}.run-btn:hover{background-color:var(--accent-hover)}.run-btn:disabled{opacity:.7;cursor:not-allowed}.main-content{flex-direction:column;flex:1;display:flex;overflow:hidden}.editor-pane{position:relative}.console-pane{background-color:var(--console-bg);color:var(--console-text);flex-direction:column;display:flex;overflow:hidden}.console-pane.closed{flex:0 0 34px}.console-pane.closed .console-output{display:none}.console-header{cursor:pointer;-webkit-user-select:none;user-select:none;background-color:#0003;justify-content:space-between;align-items:center;padding:.5rem 1rem;font-size:.875rem;font-weight:600;display:flex}.console-header:hover{background-color:#0000004d}.console-output{white-space:pre-wrap;flex:1;padding:1rem;font-family:JetBrains Mono,Fira Code,monospace;font-size:.875rem;overflow-y:auto}.console-output.error{color:var(--console-error)}.icon-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:.375rem;justify-content:center;align-items:center;padding:.5rem;transition:all .2s;display:flex}.icon-btn:hover{background:var(--border-color);color:var(--text-primary)}.resize-handle{background-color:var(--bg-color);cursor:row-resize;justify-content:center;align-items:center;height:8px;display:flex}.resize-handle-bar{background-color:var(--border-color);border-radius:2px;width:40px;height:2px;transition:background-color .2s}.resize-handle:hover .resize-handle-bar,.resize-handle:active .resize-handle-bar{background-color:var(--accent-color)}.modal-overlay{z-index:1000;background-color:#00000080;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{background-color:var(--header-bg);width:90%;max-width:400px;color:var(--text-primary);border-radius:.5rem;padding:2rem;box-shadow:0 10px 25px #0003}.modal h2{margin-top:0;margin-bottom:1.5rem;font-size:1.25rem}.setting-row{justify-content:space-between;align-items:center;margin-bottom:1rem;display:flex}.setting-row label{font-size:.875rem;font-weight:500}.setting-row input,.setting-row select{border:1px solid var(--border-color);background-color:var(--bg-color);color:var(--text-primary);border-radius:.25rem;padding:.5rem}.modal-btn{background-color:var(--accent-color);color:#fff;cursor:pointer;border:none;border-radius:.25rem;width:100%;margin-top:1rem;padding:.75rem;font-weight:500}.modal-btn:hover{background-color:var(--accent-hover)}