@import "https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&family=Space+Grotesk:wght@400;500;600;700&display=swap";:root{--bg-0:#111113;--bg-1:#19191d;--bg-2:#222228;--bg-3:#2c2c34;--text-0:#ededef;--text-1:#a9a9b8;--text-2:#6c6c80;--orange:#e8723a;--orange-dim:#e8723a1f;--red:#e5484d;--red-dim:#e5484d1a;--border:#2a2a31;--border-hover:#3a3a44;--radius:6px;--font-body:"Space Grotesk", system-ui, sans-serif;--font-mono:"JetBrains Mono", "Consolas", monospace}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;font-size:15px}body{font-family:var(--font-body);background:var(--bg-0);color:var(--text-0);min-height:100vh}#root{justify-content:center;align-items:center;min-height:100vh;padding:2rem 1rem;display:flex}.demo-container{width:100%;max-width:560px}.demo-header{margin-bottom:1.75rem}.demo-header h1{color:var(--text-0);margin-bottom:.35rem;font-size:1.4rem;font-weight:700}.demo-header p{color:var(--text-2);font-size:.87rem;line-height:1.5}.demo-header code{font-family:var(--font-mono);color:var(--orange);background:var(--orange-dim);border-radius:3px;padding:.1rem .35rem;font-size:.8rem}.demo-card{background:var(--bg-1);border:1px solid var(--border);border-radius:10px;padding:1.5rem}.demo-actions{margin-bottom:1.25rem}.btn{font-family:var(--font-body);border-radius:var(--radius);cursor:pointer;border:none;padding:.55rem 1rem;font-size:.82rem;font-weight:600;transition:background .15s,transform .1s}.btn:active{transform:scale(.97)}.btn-danger{background:var(--red-dim);color:var(--red);border:1px solid #e5484d2e}.btn-danger:hover{background:#e5484d2e}.item-list{background:var(--border);border:1px solid var(--border);border-radius:8px;flex-direction:column;gap:1px;list-style:none;display:flex;overflow:hidden}.item-row{background:var(--bg-2);align-items:center;gap:.85rem;padding:.75rem 1rem;transition:background .15s;display:flex}.item-row:hover{background:var(--bg-3)}.item-row.duplicate{background:#e5484d0a}.item-row.duplicate:hover{background:#e5484d12}.item-id{font-family:var(--font-mono);color:var(--text-2);flex-shrink:0;min-width:1.5rem;font-size:.75rem;font-weight:500}.item-row.duplicate .item-id{color:var(--red)}.item-text{color:var(--text-0);flex-shrink:0;min-width:3.5rem;font-size:.88rem;font-weight:500}.item-input{min-width:0;font-family:var(--font-body);color:var(--text-0);background:var(--bg-0);border:1px solid var(--border);border-radius:var(--radius);outline:none;flex:1;padding:.4rem .6rem;font-size:.82rem;transition:border-color .15s}.item-input::placeholder{color:var(--text-2)}.item-input:focus{border-color:var(--border-hover)}.badge-duplicate{font-family:var(--font-mono);color:var(--red);background:var(--red-dim);text-transform:uppercase;letter-spacing:.04em;border-radius:3px;flex-shrink:0;padding:.15rem .45rem;font-size:.65rem;font-weight:500}.demo-footer{background:var(--bg-2);border:1px solid var(--border);border-radius:8px;margin-top:1.25rem;padding:.85rem 1rem}.demo-footer p{color:var(--text-1);font-size:.78rem;line-height:1.6}.demo-footer strong{color:var(--text-0);font-weight:600}.demo-footer code{font-family:var(--font-mono);color:var(--orange);background:var(--orange-dim);border-radius:3px;padding:.1rem .3rem;font-size:.72rem}@media (width<=480px){.demo-card{padding:1rem}.item-row{flex-wrap:wrap;gap:.4rem}.item-input{flex-basis:100%}}