:root {
  --bg: #f5f6f8;
  --card-bg: #ffffff;
  --border: #e2e4e8;
  --text: #1f2328;
  --text-muted: #6b7280;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --ok: #059669;
  --warn: #d97706;
  --danger: #dc2626;
  --radius: 8px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

.topbar {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { font-weight: 700; font-size: 1.1rem; color: var(--text); white-space: nowrap; }
.topbar nav a { margin-left: 18px; color: var(--text-muted); font-size: 0.92rem; }
.topbar nav a:hover { color: var(--text); }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 28px 20px 60px;
}

h1 { font-size: 1.5rem; margin-bottom: 20px; }

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.login-card, .form-card { max-width: 480px; }

.summary-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}
.summary-card { text-align: center; }
.summary-number { font-size: 2rem; font-weight: 700; }
.summary-label { color: var(--text-muted); font-size: 0.85rem; margin-top: 4px; }
.summary-danger .summary-number { color: var(--danger); }
.summary-warn .summary-number { color: var(--warn); }

.table-scroll { overflow-x: auto; }

.site-table { width: 100%; min-width: 880px; border-collapse: collapse; font-size: 0.92rem; }
.site-table th, .site-table td { padding: 10px 10px; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
.site-table th { color: var(--text-muted); font-weight: 600; font-size: 0.82rem; }
.site-table td:nth-child(2) { max-width: 260px; overflow: hidden; text-overflow: ellipsis; }
.row-inactive { opacity: 0.55; }
.empty { text-align: center; color: var(--text-muted); padding: 30px 0; }

.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
}
.badge-ok { background: #ecfdf5; color: var(--ok); }
.badge-warn { background: #fffbeb; color: var(--warn); }
.badge-danger { background: #fef2f2; color: var(--danger); }
.badge-muted { background: #f3f4f6; color: var(--text-muted); }

.actions { display: flex; gap: 6px; flex-wrap: wrap; }
.inline-form { display: inline; }

.btn {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  font-size: 0.9rem;
  cursor: pointer;
}
.btn:hover { background: #f3f4f6; text-decoration: none; }
.btn-small { padding: 4px 10px; font-size: 0.8rem; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { color: var(--danger); border-color: #fecaca; }
.btn-danger:hover { background: #fef2f2; }

.field { margin-bottom: 16px; }
.field label { display: block; margin-bottom: 4px; font-weight: 600; font-size: 0.9rem; }
.field input[type="text"],
.field input[type="url"],
.field input[type="password"],
.field input[type="number"] {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
}
.checkbox-group { border: none; padding: 0; }
.checkbox-group legend { font-weight: 600; margin-bottom: 6px; padding: 0; }
.checkbox-group label { display: block; font-weight: 400; margin-bottom: 6px; }
.checkbox-group input[type="checkbox"] { margin-right: 6px; }
.checkbox-group ul { list-style: none; padding: 0; margin: 0; max-height: 260px; overflow-y: auto; border: 1px solid var(--border); border-radius: 6px; padding: 10px; }
.checkbox-group ul li { margin-bottom: 6px; }
.checkbox-group ul li label { display: inline; font-weight: 400; }

.filter-input {
  display: block;
  width: 100%;
  max-width: 320px;
  padding: 8px 10px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.9rem;
}
.hint { color: var(--text-muted); font-size: 0.82rem; margin-top: 4px; }
.error { color: var(--danger); font-size: 0.82rem; margin-top: 4px; }
.field-actions { display: flex; gap: 10px; margin-top: 20px; }

.flash {
  padding: 10px 14px;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}
.flash-success { background: #ecfdf5; color: var(--ok); }
.flash-error { background: #fef2f2; color: var(--danger); }

@media (max-width: 640px) {
  .summary-cards { grid-template-columns: repeat(2, 1fr); }
  .topbar-inner { flex-direction: column; align-items: flex-start; gap: 8px; }
}