:root {
  --bg:#082a5e;
  --panel:#ffffff;
  --text:#10243e;
  --muted:#5f6f82;
  --accent:#1f72d8;
  --accent2:#0f5bb5;
  --line:#dce5f0;
  --ok:#18794e;
  --warn:#a05a00;
  --danger:#a92626;
}
*{box-sizing:border-box}
body{margin:0;font-family:"Yu Gothic UI","Meiryo",system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}
a{color:var(--accent)}
.site-header{background:#061f47;color:#fff;padding:20px 16px;box-shadow:0 2px 12px rgba(0,0,0,.2)}
.site-header .inner,.container{max-width:1100px;margin:0 auto}
.site-title{font-size:clamp(24px,4vw,38px);font-weight:800;letter-spacing:.04em;margin:0}
.site-sub{margin:4px 0 0;color:#d8e8ff}
.container{padding:28px 16px 50px}
.card{background:var(--panel);border-radius:24px;padding:clamp(20px,4vw,38px);box-shadow:0 10px 30px rgba(0,0,0,.22);margin-bottom:22px}
h1,h2,h3{line-height:1.35}
h1{font-size:clamp(26px,4vw,40px);margin-top:0}
h2{font-size:23px;margin-top:0}
.lead{font-size:1.08rem;color:#334d6c}
.field{margin:24px 0}
label.legend{display:block;font-weight:800;font-size:1.05rem;margin-bottom:8px}
.req{display:inline-block;margin-left:8px;padding:1px 8px;border-radius:999px;background:#ffebeb;color:#a92626;font-size:.78rem}
.hint{font-size:.9rem;color:var(--muted);margin:5px 0 8px}
input[type=text],input[type=email],input[type=password],textarea,select{width:100%;border:2px solid #c7d6e7;border-radius:14px;padding:12px 14px;font:inherit;background:#fff;color:var(--text);outline:none}
input:focus,textarea:focus,select:focus{border-color:#4f92e2;box-shadow:0 0 0 3px rgba(31,114,216,.14)}
textarea{min-height:125px;resize:vertical}
.choices{display:flex;flex-wrap:wrap;gap:10px 18px;padding:8px 0}
.choice{display:flex;align-items:center;gap:7px;background:#f5f8fc;border:1px solid var(--line);padding:8px 12px;border-radius:999px}
.choice input{width:18px;height:18px}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.btn{appearance:none;border:0;border-radius:999px;padding:12px 24px;font:inherit;font-weight:800;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;min-height:48px}
.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent2)}
.btn-secondary{background:#e8f1fc;color:#12477f}.btn-danger{background:#ffe7e7;color:#8b1d1d}
.alert{border-radius:16px;padding:14px 18px;margin:14px 0}.alert-error{background:#fff0f0;color:#8a2020;border:1px solid #f1c5c5}.alert-ok{background:#eaf8f0;color:#17623f;border:1px solid #bfe2ce}
.footer{color:#d7e7ff;text-align:center;padding:0 16px 30px;font-size:.9rem}
.small{font-size:.9rem;color:var(--muted)}
.admin-top{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:16px}
table{border-collapse:collapse;width:100%;min-width:1150px;background:#fff}
th,td{padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}
th{position:sticky;top:0;background:#edf4fc;color:#163b65;z-index:1}
tr:hover td{background:#f9fbfe}.nowrap{white-space:nowrap}.prewrap{white-space:pre-wrap;max-width:340px}.status-form{display:flex;gap:6px}.status-form select{min-width:110px;padding:7px 9px;border-radius:10px}.status-form .btn{min-height:36px;padding:7px 12px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin:16px 0 22px}.stat{background:#f2f7fd;border-radius:16px;padding:14px}.stat b{font-size:1.5rem;display:block}
@media(max-width:600px){.container{padding:16px 10px 35px}.card{border-radius:18px;padding:18px}.btn{width:100%}.choices{display:grid;grid-template-columns:1fr}.site-title{font-size:28px}}