:root{--bg: #f4f4ee;--panel: #fffefa;--text: #151512;--muted: #57574e;--line: #d4d0c2;--accent: #016154;--accent-2: #c7541b;--danger: #b03028}*{box-sizing:border-box}body{margin:0;font-family:IBM Plex Sans,Segoe UI,Tahoma,sans-serif;background:radial-gradient(circle at 20% 0%,#fffcf0 0%,var(--bg) 46%),linear-gradient(135deg,#eef5f1,#f7efe6);color:var(--text)}.app-shell{max-width:1200px;margin:0 auto;padding:1.2rem}.top-bar{display:flex;justify-content:space-between;gap:1rem;padding:1.1rem;border:1px solid var(--line);border-radius:14px;background:var(--panel)}.top-bar h1{margin:0;font-size:1.5rem}.top-bar p{margin:.3rem 0 0;color:var(--muted)}.token-box{min-width:300px;display:flex;flex-direction:column;gap:.35rem}.token-box input{width:100%}.tabs{margin-top:.9rem;display:flex;gap:.5rem}.tabs button{border:1px solid var(--line);background:#faf8f1;color:var(--text);padding:.55rem .9rem;border-radius:999px;cursor:pointer}.tabs button.active{background:var(--accent);border-color:var(--accent);color:#fff}.panel{margin-top:1rem}.card{border:1px solid var(--line);border-radius:14px;background:var(--panel);padding:1rem;margin-bottom:1rem}.grid-two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.controls{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:.8rem}button{border:1px solid var(--accent);background:#d6efe8;color:var(--text);padding:.5rem .8rem;border-radius:8px;cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}button.warn{border-color:var(--accent-2);background:#fce6d8}button.danger{border-color:var(--danger);background:#fbe0de}.form-row{display:flex;align-items:center;gap:.5rem;margin-top:.55rem}.form-row label{min-width:100px;color:var(--muted)}input,select,textarea{border:1px solid var(--line);border-radius:8px;padding:.45rem .55rem;font-family:Consolas,Menlo,monospace;background:#fff;flex:1}.form-row textarea{min-height:8rem;resize:vertical}.item{border:1px dashed var(--line);border-radius:10px;padding:.75rem;margin-top:.5rem}pre{background:#0f1a1e;color:#d8f7ee;border-radius:10px;padding:.75rem;overflow-x:auto;white-space:pre-wrap;word-break:break-word}.error{color:var(--danger);font-weight:600}@media(max-width:900px){.top-bar{flex-direction:column}.token-box{min-width:0}.grid-two{grid-template-columns:1fr}}