main{flex:1;display:flex;flex-direction:column;align-items:center;padding:40px 24px}.container-wide{width:100%;max-width:1280px;display:flex;flex-direction:column;gap:20px}.title{color:#fff;font-size:28px;font-weight:700;background:linear-gradient(135deg,#fff 0%,var(--text) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.toolbar-row{display:flex;justify-content:space-between;align-items:center;background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:12px 20px;flex-wrap:wrap;gap:12px}.preset-group{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text)}.preset-group select{background:var(--bg3);border:1px solid var(--border);color:#fff;padding:6px 10px;border-radius:var(--r);font-size:13px;outline:none}.toolbar-actions{display:flex;gap:8px}.split-panel{display:grid;grid-template-columns:1fr 1fr;gap:20px}.panel-left,.panel-right{display:flex;flex-direction:column;gap:16px}.panel-section{background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:10px}.panel-section textarea{width:100%;height:480px;background:var(--bg3);border:1px solid var(--border);color:#fff;padding:14px;border-radius:var(--r);outline:none;font-family:JetBrains Mono,monospace;font-size:13px;line-height:1.5;resize:vertical;transition:border-color .2s}.panel-section textarea:focus{border-color:var(--accent)}.card-header{display:flex;align-items:center;justify-content:space-between;gap:12px}.card-label{font-size:13px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}.btn-clear{background:none;border:none;color:var(--accent);cursor:pointer;font-size:13px;font-family:inherit;font-weight:500;transition:opacity .2s}.btn-clear:hover{text-decoration:underline;opacity:.8}.output-actions{display:flex;gap:6px}.output-pre{background:var(--bg3);border:1px solid var(--border);border-radius:var(--r);padding:14px;min-height:200px;max-height:520px;overflow:auto;font-family:JetBrains Mono,monospace;font-size:13px;line-height:1.5;color:#fff;white-space:pre-wrap;word-break:break-all}.placeholder-text{color:var(--muted);font-style:italic}.validation-panel{background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:16px}.error-message{padding:6px 10px;border-radius:4px;font-size:12px;margin-bottom:4px;background:#f8514926;color:var(--error);border-left:3px solid var(--error)}@media(max-width:768px){main{padding:20px 12px}.split-panel{grid-template-columns:1fr}.toolbar-row{flex-direction:column;align-items:stretch}}