:root{
  --bg:#F7F8FB;
  --card:#FFFFFF;
  --text:#0F172A;
  --muted:#64748B;
  --border:#E5E7EB;
  --blue:#2563EB;
  --blueHover:#1D4ED8;
  --shadow:0 10px 25px rgba(2, 6, 23, .08);
  --radius:18px;
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text)}
.container{max-width:980px;margin:0 auto;padding:12px 12px 28px}
.topbar{display:flex;justify-content:flex-start;margin:6px 0 10px}
.backlink{display:inline-flex;align-items:center;gap:8px;padding:10px 12px;border:1px solid var(--border);border-radius:12px;background:#fff;color:#0F172A;text-decoration:none;font-weight:800}
.backlink:active{transform:translateY(1px)}
.header{display:flex;flex-direction:column;align-items:center;gap:10px;padding:4px 0 6px}
h1{margin:6px 0 10px;font-size:34px;letter-spacing:.2px;text-align:center}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;margin-bottom:14px}
.card h2{margin:0 0 12px;font-size:18px}
.label{font-size:12px;color:var(--muted);font-weight:700;margin:10px 0 6px}
input,select,textarea{width:100%;border:1px solid var(--border);border-radius:12px;padding:12px;font-size:16px;outline:none;background:#fff}
input:focus,select:focus,textarea:focus{border-color:rgba(37,99,235,.55);box-shadow:0 0 0 4px rgba(37,99,235,.12)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.row{display:flex;gap:10px;flex-wrap:wrap}
.row input{flex:1 1 260px}
.btn{border:none;border-radius:14px;padding:14px 14px;font-weight:800;font-size:14px;cursor:pointer;background:var(--blue);color:#fff}
.btn:hover{background:var(--blueHover)}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn.full{width:100%}
.btn-secondary{background:#475569}
.btn-secondary:hover{background:#334155}
.btn-small{padding:8px 12px;border-radius:10px;font-size:13px}
.muted{color:var(--muted);font-size:14px}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;word-break:break-all}
.pill{display:inline-block;background:#eff6ff;color:var(--blue);padding:4px 8px;border-radius:999px;margin-left:6px;font-weight:700}
.notice{margin-top:10px;padding:10px 12px;border:1px solid var(--border);border-radius:14px;background:#fff;color:var(--muted);font-size:13px;overflow-wrap:anywhere}
.qr{width:180px;height:180px;border-radius:14px;border:1px solid var(--border);background:#fff}
.qr-section{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.qr-wrap{width:220px;max-width:100%;background:#fff;border:1px solid rgba(15,23,42,.1);border-radius:12px;padding:10px}
.qr-wrap svg{display:block;width:100%;height:auto}
.qr-actions{width:220px;max-width:100%;display:flex;justify-content:flex-start}
.qr-actions .btn{width:100%}
.edit-client-form{margin-top:12px;padding:12px;border:1px solid rgba(15,23,42,.08);border-radius:12px;background:#fff}
.edit-actions{display:flex;gap:10px;margin-top:10px}
.edit-actions button{flex:1}
#toast{position:fixed;bottom:16px;right:16px;display:none;padding:12px 14px;border-radius:12px;color:#fff;box-shadow:var(--shadow);z-index:50}

.segmented{display:flex;gap:10px;padding:10px;border-radius:16px;background:#EEF2FF;margin:8px auto 16px}
.seg{flex:1;border:none;border-radius:12px;padding:10px 12px;font-weight:800;cursor:pointer;background:transparent;color:#334155}
.seg.active{background:#fff;color:var(--blue);box-shadow:0 6px 16px rgba(37,99,235,.15)}
.view{display:none}
.view.active{display:block}
.two-col{display:grid;grid-template-columns:1fr;gap:12px}
.results{display:grid;gap:8px}
.result-item{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--border);border-radius:12px;background:#fff}
.top-12{margin-top:12px}
.top-8{margin-top:8px}

@media (min-width:900px){
  .two-col{grid-template-columns:1fr 1fr;gap:16px}
  .qr{width:200px;height:200px}
}

@media (max-width:640px){
  .container{padding:10px 10px 22px}
  .card{padding:14px}
  .segmented{padding:8px;gap:8px}
  .grid2{grid-template-columns:1fr}
  h1{font-size:28px}
  .result-item{flex-direction:column;align-items:flex-start}
  .result-item button{width:100%}
}

@media (max-width:520px){
  .search-row{display:grid;grid-template-columns:1fr;gap:10px}
}