:root{
  --indigo:#6366f1; --indigo-d:#4f46e5; --violet:#8b5cf6;
  --ink:#1e293b; --muted:#64748b; --line:#e2e8f0; --bg:#f1f5f9; --card:#fff;
  --green:#22c55e; --red:#ef4444; --amber:#f59e0b; --gold:#eab308;
  --radius:18px; --shadow:0 12px 30px rgba(30,41,59,.12);
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);
  min-height:100vh;background:linear-gradient(135deg,#6366f1,#8b5cf6)}
body.app{background:var(--bg)}
a{color:var(--indigo-d);text-decoration:none}
.center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:18px}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px 22px;width:100%;max-width:440px}
.card.wide{max-width:760px}
h1,h2,h3{margin:.3em 0}
.title{font-size:2rem;font-weight:800;text-align:center}
.sub{color:var(--muted);text-align:center;margin-top:4px}
.muted{color:var(--muted)}
.row{display:flex;gap:12px;flex-wrap:wrap}
.center-col{display:flex;flex-direction:column;align-items:center;text-align:center}
.hidden{display:none!important}
.error{color:var(--red);min-height:1.2em;margin:6px 0 0;text-align:center}

label.field{display:block;text-align:left;margin:10px 0}
label.field>span{display:block;font-size:.85rem;color:var(--muted);margin-bottom:4px;font-weight:600}
.input{width:100%;padding:13px 15px;border:2px solid var(--line);border-radius:12px;font-size:1.05rem;outline:none;font-family:inherit}
.input:focus{border-color:var(--indigo)}
.input.code{font-size:1.7rem;text-align:center;letter-spacing:.3em;text-transform:uppercase;font-weight:800}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:14px;border:0;border-radius:12px;font-size:1.05rem;font-weight:700;cursor:pointer;transition:transform .05s,filter .15s,background .15s;font-family:inherit}
.btn:active{transform:scale(.98)}
.btn.primary{background:var(--indigo);color:#fff}
.btn.primary:hover{background:var(--indigo-d)}
.btn.ghost{background:#eef2ff;color:var(--indigo-d)}
.btn.success{background:var(--green);color:#fff}
.btn.big{font-size:1.2rem;padding:17px}
.btn:disabled{background:#cbd5e1;color:#fff;cursor:not-allowed}
.btn.auto{width:auto;padding:9px 14px}

.nav{position:sticky;top:0;background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.06);display:flex;align-items:center;justify-content:space-between;padding:10px 16px;z-index:5}
.brand{font-weight:800;font-size:1.15rem}
.chip{display:inline-flex;align-items:center;gap:8px;background:#eef2ff;border-radius:999px;padding:6px 12px;font-weight:700;color:var(--indigo-d)}
.container{max-width:920px;margin:0 auto;padding:18px}

.avatar{display:inline-flex;align-items:center;justify-content:center;background:#eef2ff;border-radius:50%;width:42px;height:42px;font-size:1.4rem;flex:none}
.avatar.lg{width:88px;height:88px;font-size:3rem}
.avatar-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(50px,1fr));gap:8px;margin:8px 0}
.avatar-grid button{font-size:1.6rem;background:#f1f5f9;border:2px solid transparent;border-radius:12px;padding:7px;cursor:pointer}
.avatar-grid button.sel{border-color:var(--indigo);background:#eef2ff}

.badge{display:inline-flex;align-items:center;gap:6px;background:#fef3c7;color:#92400e;border-radius:999px;padding:4px 10px;font-weight:700;font-size:.9rem}
.bar{height:12px;background:#e2e8f0;border-radius:999px;overflow:hidden;margin-top:6px}
.bar>i{display:block;height:100%;background:linear-gradient(90deg,#6366f1,#8b5cf6);transition:width .4s}

.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:14px 0}
.stat{background:#fff;border-radius:14px;padding:14px;text-align:center;box-shadow:var(--shadow)}
.stat b{display:block;font-size:1.6rem}
.stat span{color:var(--muted);font-size:.85rem}

.lb{list-style:none;padding:0;margin:0}
.lb li{display:flex;align-items:center;gap:10px;background:#fff;border-radius:12px;padding:9px 12px;margin:6px 0;box-shadow:0 4px 12px rgba(0,0,0,.05)}
.lb .rk{font-weight:800;width:26px;color:var(--muted);text-align:center}
.lb .nm{flex:1;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lb .pt{font-weight:800;color:var(--indigo-d)}
.lb li.top1{background:linear-gradient(90deg,#fffbeb,#fff);border:2px solid #fde68a}

.code-box{font-size:3rem;font-weight:900;letter-spacing:.25em;color:var(--indigo-d);background:#eef2ff;border-radius:16px;padding:16px 10px;text-align:center;word-break:break-all}
.qr{background:#fff;padding:10px;border-radius:14px;display:inline-block;box-shadow:var(--shadow)}
.opts{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px}
.opt{padding:18px;border:0;border-radius:14px;font-size:1.08rem;font-weight:700;color:#fff;cursor:pointer;transition:transform .05s;font-family:inherit;line-height:1.2}
.opt:active{transform:scale(.97)}
.opt:nth-child(1){background:#ef4444}
.opt:nth-child(2){background:#3b82f6}
.opt:nth-child(3){background:#f59e0b}
.opt:nth-child(4){background:#22c55e}
.opt:disabled{opacity:.5}

@media(max-width:520px){.title{font-size:1.7rem}}