:root{
  --bg:#eef1f5; --card:#fff; --ink:#1f2733; --muted:#6b7685; --line:#e3e8ef;
  --brand:#2f6fed; --brand-d:#2257c9; --ok:#16a34a; --danger:#dc2626; --warn:#b45309;
  --radius:10px; --shadow:0 1px 3px rgba(16,24,40,.08),0 8px 24px rgba(16,24,40,.06);
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,"Segoe UI",Roboto,"Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif;
  background:var(--bg);color:var(--ink);font-size:14px;line-height:1.55}
a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}
h1{font-size:20px;margin:0 0 4px}h2{font-size:16px;margin:0 0 12px}
.muted{color:var(--muted)}.small{font-size:12.5px}

/* ---- login / centered card ---- */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.auth-card{background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);
  width:100%;max-width:380px;padding:28px 26px}
.brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.brand .logo{width:34px;height:34px;border-radius:8px;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:800}
.brand b{font-size:16px}

label{display:block;font-size:13px;color:var(--muted);margin:12px 0 5px}
input[type=text],input[type=email],input[type=password],select{
  width:100%;padding:10px 11px;border:1px solid #cdd5df;border-radius:8px;font-size:14px;background:#fff;color:var(--ink)}
input:focus,select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,111,237,.15)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid #cdd5df;background:#fff;color:var(--ink);
  padding:9px 16px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;font-family:inherit}
.btn:hover{background:#f5f7fa}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff;width:100%;margin-top:18px}
.btn-primary:hover{background:var(--brand-d)}
.btn-sm{padding:6px 11px;font-size:13px}
.btn-danger{color:var(--danger);border-color:#f0c4c4}
.alert{padding:10px 12px;border-radius:8px;font-size:13px;margin-bottom:6px}
.alert-error{background:#fef2f2;border:1px solid #fecaca;color:#991b1b}
.alert-ok{background:#ecfdf5;border:1px solid #a7f3d0;color:#065f46}
.row-links{display:flex;justify-content:space-between;margin-top:14px;font-size:13px}

/* ---- app shell ---- */
.topbar{background:#fff;border-bottom:1px solid var(--line);height:54px;display:flex;align-items:center;
  gap:16px;padding:0 18px;position:sticky;top:0;z-index:10}
.topbar .brand{margin:0}
.topbar .spacer{flex:1}
.topbar form{display:inline}
.chip{display:inline-flex;align-items:center;gap:6px;background:#f1f4f9;border:1px solid var(--line);
  border-radius:999px;padding:5px 12px;font-size:13px;color:var(--ink)}
.container{max-width:1060px;margin:22px auto;padding:0 18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:18px}
.grid{display:grid;gap:14px}
.grid.cols-3{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}
.sys-tile{display:block;border:1px solid var(--line);border-radius:10px;padding:14px 15px;background:#fff;color:var(--ink)}
.sys-tile:hover{border-color:var(--brand);text-decoration:none;box-shadow:var(--shadow)}
.sys-tile b{display:block;font-size:15px}.sys-tile .code{font-size:12px;color:var(--muted)}

table{width:100%;border-collapse:collapse;font-size:13.5px}
th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
thead th{background:#f7f9fc;font-size:12.5px;color:#475569;white-space:nowrap}
.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;background:#eef2f7;color:#475569}
.badge.ok{background:#ecfdf5;color:#15803d}.badge.off{background:#f3f4f6;color:#6b7280}
.adminnav{display:flex;gap:4px;flex-wrap:wrap;margin-bottom:16px}
.adminnav a{padding:7px 12px;border-radius:8px;color:var(--muted);font-weight:600}
.adminnav a.active,.adminnav a:hover{background:#fff;color:var(--ink);text-decoration:none;border:1px solid var(--line)}
.form-actions{margin-top:16px;display:flex;gap:8px}
.checks{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:4px 14px;margin-top:6px}
.checks label{display:flex;gap:7px;align-items:center;margin:0;color:var(--ink);font-size:13px}
.checks input{width:auto}