:root{
  --bg:#0b0e14;
  --card:#121827;
  --muted:#9aa4b2;
  --text:#e6edf6;
  --line:#22304a;
  --ok:#1c7c54;
  --ng:#b42318;
  --warn:#b54708;
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans JP",sans-serif;background:linear-gradient(180deg,#0b0e14,#06080c);color:var(--text)}
a{color:inherit}
.container{max-width:1180px;margin:0 auto;padding:16px}
.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;padding:10px 16px;border-bottom:1px solid var(--line);background:rgba(11,14,20,.9);backdrop-filter:blur(8px)}
.brand{font-weight:800;letter-spacing:.02em}
.topbar-right{display:flex;gap:8px;align-items:center}
.userchip{padding:6px 10px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:13px}
.pagehead{display:flex;flex-direction:column;gap:10px;margin:10px 0 16px}.pagehead h1{margin:0;font-size:20px}
.nav{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.navlink{padding:8px 10px;border:1px solid var(--line);border-radius:10px;text-decoration:none;color:var(--text);background:rgba(18,24,39,.4)}.navlink:hover{background:rgba(18,24,39,.8)}.navsep{width:10px}
.card{background:rgba(18,24,39,.8);border:1px solid var(--line);border-radius:16px;padding:14px;box-shadow:0 10px 30px rgba(0,0,0,.35)}
.grid{display:grid;grid-template-columns:1fr;gap:12px}@media(min-width:900px){.grid.cols2{grid-template-columns:1fr 1fr}}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 12px;border-radius:12px;border:1px solid var(--line);text-decoration:none;cursor:pointer;background:#1a2336;color:var(--text);font-weight:650}.btn:hover{filter:brightness(1.05)}.btn.primary{background:#24314d}.btn.ghost{background:transparent}.btn.danger{background:#3a1111;border-color:#5a1a1a}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.muted{color:var(--muted)}
.flash{margin:10px 0;padding:10px 12px;border-radius:12px;border:1px solid var(--line)}.flash.ok{border-color:rgba(28,124,84,.5);background:rgba(28,124,84,.15)}.flash.ng{border-color:rgba(180,35,24,.6);background:rgba(180,35,24,.15)}.flash.warn{border-color:rgba(181,71,8,.6);background:rgba(181,71,8,.15)}
table{width:100%;border-collapse:collapse}th,td{padding:10px;border-bottom:1px solid var(--line);text-align:left;font-size:14px;vertical-align:top}th{color:var(--muted);font-weight:700}
input,select,textarea{width:100%;padding:10px 12px;border-radius:12px;border:1px solid var(--line);background:rgba(10,14,22,.6);color:var(--text);outline:none}
label{display:block;color:var(--muted);font-size:13px;margin:8px 0 6px}.formgrid{display:grid;grid-template-columns:1fr;gap:10px}@media(min-width:900px){.formgrid.cols2{grid-template-columns:1fr 1fr}}
.footer{padding:18px;text-align:center;color:var(--muted);font-size:12px}.badge{padding:4px 8px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:12px}
details summary{list-style:none}details summary::-webkit-details-marker{display:none}
.pair-grid{display:grid;grid-template-columns:1fr;gap:12px}@media(min-width:900px){.pair-grid{grid-template-columns:1fr 1fr}}
.pair-card{padding:12px;border:1px solid var(--line);border-radius:14px;background:rgba(8,12,18,.45)}
.sheet-a4{display:grid;grid-template-columns:repeat(2, 1fr);gap:12px}.qr-card{border:1px dashed #70819f;border-radius:14px;padding:12px;min-height:250px;background:#fff;color:#111;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;text-align:center;page-break-inside:avoid}.qr-head{font-weight:800;font-size:16px}.qr-sub,.qr-meta{font-size:12px;color:#444}.qr-name{margin-top:6px;font-size:22px;font-weight:800}.qr-image{margin:10px 0 8px;border:1px solid #ddd}
@media print{
  body{background:#fff;color:#000}
  .topbar,.pagehead,.footer,.print-hide,.btn,.nav{display:none !important}
  .container{max-width:none;padding:0}
  .card{box-shadow:none;border:none;background:#fff;padding:0}
  .sheet-a4{gap:8mm;grid-template-columns:repeat(2,1fr)}
  .qr-card{min-height:120mm}
  @page{size:A4 portrait;margin:10mm}
}