:root{
  --bg:#f3f6fb;
  --surface:#ffffff;
  --surface-alt:#f8fbff;
  --text:#0f172a;
  --muted:#64748b;
  --border:#dbe4f0;
  --primary:#2563eb;
  --primary-hover:#1d4ed8;
  --primary-soft:#e8f0ff;
  --danger:#dc2626;
  --shadow:0 14px 36px rgba(15, 23, 42, 0.08);
  --radius:18px;
}

*{box-sizing:border-box}
html,body{min-height:100%}
body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:linear-gradient(180deg,#f7faff 0%,#eff4fb 100%);color:var(--text)}
.container{max-width:1120px;margin:0 auto;padding:20px 16px 34px}
.page-header-wrapper{position:relative}

.panel-back-btn{position:absolute;top:18px;right:16px;padding:8px 14px;background:#fff;border-radius:999px;font-size:13px;font-weight:700;color:var(--primary);text-decoration:none;border:1px solid var(--border);transition:all .2s ease}
.panel-back-btn:hover{background:var(--primary-soft);border-color:#bfd3fb}

.topbar{display:flex;align-items:center;justify-content:flex-start;margin:6px 0 8px}
.brandlink{display:flex;align-items:center;text-decoration:none}
.brandlink img{height:38px;width:auto;display:block}

.header{display:flex;flex-direction:column;align-items:flex-start;gap:8px;padding:10px 0 4px}
h1{margin:0;font-size:clamp(1.5rem,3vw,2rem);font-weight:800;letter-spacing:.2px}
.header::after{content:"";width:72px;height:4px;border-radius:99px;background:var(--primary)}

.segmented{display:flex;gap:10px;padding:8px;border-radius:14px;background:var(--primary-soft);border:1px solid #c8dafe;margin:14px 0 18px;overflow:auto}
.seg{flex:1;min-width:max-content;border:none;border-radius:10px;padding:10px 14px;font-weight:700;cursor:pointer;background:transparent;color:#1e3a8a;transition:all .15s ease}
.seg.active{background:#fff;color:var(--primary);box-shadow:0 8px 18px rgba(37,99,235,.16)}

.view{display:none}
.view.active{display:block}
.two-col{display:grid;grid-template-columns:1fr;gap:14px}

.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:14px}
.card h2{margin:0 0 10px;font-size:1.08rem}
.label{font-size:12px;color:var(--muted);font-weight:700;margin:9px 0 6px;letter-spacing:.02em}
.muted{color:var(--muted);font-size:14px;line-height:1.45}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;word-break:break-all}

.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.row input{flex:1 1 260px}
.search-row .btn{min-width:118px}

input,select,textarea{width:100%;border:1px solid var(--border);border-radius:12px;padding:11px 12px;font-size:15px;outline:none;background:#fff;color:var(--text)}
input:focus,select:focus,textarea:focus{border-color:#9ec0ff;box-shadow:0 0 0 4px rgba(37,99,235,.14)}
textarea{min-height:90px;resize:vertical}

.btn{border:none;border-radius:12px;padding:12px 14px;font-weight:700;font-size:14px;cursor:pointer;background:var(--primary);color:#fff;transition:all .15s ease}
.btn:hover{background:var(--primary-hover)}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn.full{width:100%}
.btn-secondary{background:#334155}
.btn-secondary:hover{background:#1e293b}
.btn-small{padding:8px 12px;border-radius:10px;font-size:13px}
.btn-danger{background:var(--danger)}
.btn-danger:hover{background:#b91c1c}

.results{display:grid;gap:10px}
.result-item,.promotion-item,.level-item{border:1px solid var(--border);border-radius:13px;padding:12px;background:var(--surface-alt)}
.result-item{display:flex;justify-content:space-between;align-items:center;gap:10px}

.pill{display:inline-flex;align-items:center;background:#e2ebff;color:#1e3a8a;padding:4px 9px;border-radius:999px;margin-left:6px;font-weight:700;font-size:12px}
.notice{margin-top:8px;padding:10px 12px;border:1px solid var(--border);border-radius:12px;background:#fff;color:var(--muted);font-size:13px;overflow-wrap:anywhere}

.qr-section{display:flex;flex-wrap:wrap;gap:10px;align-items:flex-start}
.qr-wrap{width:220px;max-width:100%;background:#fff;border:1px solid var(--border);border-radius:12px;padding:10px}
.qr-wrap svg{display:block;width:100%;height:auto}
.qr-actions{width:220px;max-width:100%}
.qr-actions .btn{width:100%}

.edit-client-form{margin-top:12px;padding:12px;border:1px solid var(--border);border-radius:12px;background:#fff}
.edit-actions{display:flex;gap:10px;margin-top:10px}
.edit-actions button{flex:1}

.levels-group{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.levels-group label,.switch-like{display:flex;align-items:center;gap:8px;padding:10px;border:1px solid var(--border);border-radius:10px;background:#fff;font-size:14px;color:#1e293b}
.levels-group input,.switch-like input{width:auto}
.level-active-toggle{align-self:end}

.promotion-head,.level-head{display:flex;justify-content:space-between;gap:10px;align-items:center;flex-wrap:wrap}
.level-color-dot{display:inline-block;width:12px;height:12px;border-radius:999px;border:1px solid rgba(15,23,42,.2);vertical-align:middle;margin:0 6px}
.benefits-list{margin:6px 0 0 18px;padding:0;color:#1e293b;font-size:14px}
.benefits-list li{margin:2px 0}

.top-12{margin-top:12px}
.top-8{margin-top:8px}
.is-hidden{display:none}
.is-hidden-inline{display:none}

#toast{position:fixed;bottom:16px;right:16px;display:none;padding:12px 14px;border-radius:12px;color:#fff;box-shadow:var(--shadow);z-index:50}

@media (min-width:920px){
  .two-col{grid-template-columns:1fr 1fr;gap:16px}
}

@media (max-width:760px){
  .container{padding:12px 12px 24px}
  .panel-back-btn{position:static;display:inline-flex;margin-bottom:10px}
  .header{align-items:flex-start}
  .grid2{grid-template-columns:1fr}
  .levels-group{grid-template-columns:1fr 1fr}
  .result-item{flex-direction:column;align-items:flex-start}
  .result-item button{width:100%}
}

@media (max-width:520px){
  .segmented{gap:6px;padding:6px}
  .seg{padding:9px 10px;font-size:13px}
  .card{padding:14px}
  .row{flex-direction:column;align-items:stretch}
  .row input,.row button{width:100%}
  .levels-group{grid-template-columns:1fr}
  .edit-actions{flex-direction:column}
}