:root{--bg: #f4f6f8;--surface: #ffffff;--fg: #1c2024;--muted: #6b7280;--border: #e7e9ec;--accent: #0aa3a3;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg)}.topbar{display:flex;align-items:center;gap:24px;padding:0 24px;height:60px;background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}.brand{font-weight:700;font-size:16px;display:flex;align-items:center;gap:8px}.brand .logo{color:var(--accent)}.nav{display:flex;gap:18px;margin-left:8px}.nav a{color:var(--muted);text-decoration:none;font-size:14px;font-weight:500}.nav a.is-active,.nav a:hover{color:var(--fg)}.actions{margin-left:auto;display:flex;align-items:center;gap:14px}.iconbtn{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;border:1px solid var(--border);background:var(--surface);color:var(--fg);cursor:pointer}.iconbtn:hover{background:var(--bg)}.avatar{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--accent);color:#fff;font-size:12px;font-weight:700}.content{max-width:960px;margin:0 auto;padding:32px 24px 80px}.content h1{margin:0 0 4px;font-size:26px}.sub{margin:0 0 28px;color:var(--muted)}code{background:#eef1f3;padding:1px 6px;border-radius:6px;font-size:.9em}.panel{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:22px}.panel h2{margin:0 0 16px;font-size:18px}.btnrow{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:14px}.btn{appearance:none;border:0;background:var(--accent);color:#fff;font-size:14px;font-weight:600;padding:10px 16px;border-radius:10px;cursor:pointer}.btn:hover{filter:brightness(.95)}.btn--ghost{background:transparent;color:var(--fg);border:1px solid var(--border)}.hint{color:var(--muted);font-size:13px;margin:6px 0 0}.hint strong{color:var(--fg)}.panel+.panel{margin-top:20px}.controls{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}.cfg-group{margin:0;border:1px solid var(--border);border-radius:12px;padding:10px 16px 16px}.cfg-group>legend{padding:0 6px;font-size:11px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}.field{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:12px;font-size:13px}.field>span{color:var(--fg)}.field>span output{color:var(--muted);font-variant-numeric:tabular-nums}.field input[type=color]{flex:none;width:42px;height:26px;padding:0;border:1px solid var(--border);border-radius:6px;background:none;cursor:pointer}.field input[type=range]{flex:0 1 120px;accent-color:var(--accent)}.field input[type=checkbox]{width:16px;height:16px;accent-color:var(--accent);cursor:pointer}.field select{flex:0 1 auto;font:inherit;padding:5px 8px;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--fg);cursor:pointer}.field input[type=text]{flex:0 1 150px;min-width:0;font:inherit;padding:5px 8px;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--fg)}.field input:disabled,.field select:disabled{opacity:.4;cursor:not-allowed}