:root{
  --bg:#ffffff;
  --text:#111827;
  --muted:#6b7280;
  --line:#e5e7eb;
  --card:#ffffff;
  --accent:#2563eb;
  --max: 900px;
  --radius: 14px;
}

*{ box-sizing:border-box; }

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family: system-ui, -apple-system, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "メイリオ", Meiryo, sans-serif;
  line-height:1.7;
}

a{ color: var(--accent); text-decoration: none; }
a:hover{ text-decoration: underline; }

.container{
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 16px;
}

.header{
  position: sticky;
  top: 0;
  background: rgba(255,255,255,.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
  z-index: 10;
}

.header-inner{
  min-height: 60px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
}

.brand-title{ font-weight: 900; font-size: 16px; }
.brand-sub{ color: var(--muted); font-size: 12px; }

.card{
  margin: 16px 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.h1{ margin: 0 0 6px; font-size: 22px; }
.h2{ margin: 0 0 10px; font-size: 16px; }
.lead{ margin: 0 0 12px; color: var(--muted); font-size: 14px; }

.label{
  display:block;
  margin: 10px 0 6px;
  font-weight: 800;
  font-size: 13px;
}

.controls{ max-width: 640px; }

.select, .input{
  width: 100%;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--line);
  padding: 10px 12px;
  font-size: 16px; /* スマホ拡大防止 */
  background: #fff;
  color: var(--text);
}

.searchbar{
  display:flex;
  gap: 10px;
  align-items: center;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height: 44px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  font-weight: 800;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary{
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.btn-ghost{
  background: transparent;
}

.hint{
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
}

.fieldset{
  border: 0;
  padding: 0;
  margin: 0;
}

.table-wrap{
  overflow:auto;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.table{
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  background: #fff;
}

.table th, .table td{
  padding: 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
  font-size: 14px;
}

.table thead th{
  background: #f9fafb;
  text-align: left;
  font-weight: 900;
}

.col-radio{ width: 90px; }
.col-name{ width: 140px; }

.radio{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  user-select: none;
}

.radio input{
  width: 18px;
  height: 18px;
}

.sr-only{
  position:absolute;
  width:1px;
  height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
}

@media (max-width: 560px){
  .searchbar{
    flex-direction: column;
    align-items: stretch;
  }
  .btn{ width: 100%; }
  .card{ padding: 14px; }
}