:root {
  --bg: #f5f6f8;
  --card-bg: #ffffff;
  --text: #1f2430;
  --muted: #6b7280;
  --border: #e2e5ea;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --ok: #16a34a;
  --ok-bg: #dcfce7;
  --missing: #b91c1c;
  --missing-bg: #fee2e2;
  --warning-bg: #fef3c7;
  --warning-text: #92400e;
  --error-bg: #fee2e2;
  --error-text: #991b1b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
}

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

.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 12px 20px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.topbar-brand { font-size: 15px; white-space: nowrap; }
.main-nav { display: flex; gap: 16px; flex-wrap: wrap; flex: 1; }
.nav-disabled { color: #b8bcc4; cursor: default; font-size: 14px; }
.nav-active { font-weight: 600; font-size: 14px; }
.logout-form { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.current-user { color: var(--muted); font-size: 13px; }

.sub-nav {
  display: flex;
  gap: 4px;
  padding: 0 20px;
  background: #eef1f5;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}
.sub-nav a {
  padding: 10px 14px;
  color: var(--text);
  font-size: 14px;
  white-space: nowrap;
}
.sub-nav a:hover { background: #e2e6ec; text-decoration: none; }

.content { padding: 20px; max-width: 1100px; margin: 0 auto; }

h1 { font-size: 22px; margin: 0 0 16px; }
h2 { font-size: 16px; margin: 0 0 10px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.02em; }

.btn {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  cursor: pointer;
  font-size: 14px;
}
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-small { padding: 4px 10px; font-size: 13px; }
.btn-link { background: none; border: none; padding: 0; color: var(--primary); cursor: pointer; }

.search-form { display: flex; gap: 8px; margin-bottom: 20px; max-width: 500px; }
.search-form input[type="text"] { flex: 1; padding: 10px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 15px; }

.table-wrap { overflow-x: auto; background: var(--card-bg); border-radius: 8px; border: 1px solid var(--border); }
.data-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.data-table th, .data-table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
.data-table th { color: var(--muted); font-weight: 600; font-size: 13px; }
.data-table tbody tr:hover { background: #f9fafb; }
.data-table tbody tr.row-current { background: #eff6ff; }

.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-ok { background: var(--ok-bg); color: var(--ok); }
.badge-missing { background: var(--missing-bg); color: var(--missing); }

.empty-state { color: var(--muted); padding: 20px; }
.hint { color: var(--muted); font-size: 13px; }

.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }
.detail-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 8px; padding: 16px; }
.kv-table { width: 100%; font-size: 14px; }
.kv-table th { text-align: left; color: var(--muted); font-weight: 500; padding: 6px 8px 6px 0; vertical-align: top; width: 40%; }
.kv-table td { padding: 6px 0; }

.form-card, .form-inline { display: flex; flex-direction: column; gap: 12px; max-width: 420px; }
.form-card label, .form-inline label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
.form-card input, .form-inline input { padding: 10px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 15px; color: var(--text); }

.login-box { max-width: 340px; margin: 60px auto; background: var(--card-bg); padding: 28px; border-radius: 10px; border: 1px solid var(--border); }
.login-box form { display: flex; flex-direction: column; gap: 14px; margin-top: 16px; }
.login-box label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
.login-box input { padding: 10px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 15px; }

.alert { padding: 10px 14px; border-radius: 6px; font-size: 14px; margin-bottom: 12px; }
.alert-error { background: var(--error-bg); color: var(--error-text); }
.alert-warning { background: var(--warning-bg); color: var(--warning-text); }

.error-box { max-width: 500px; margin: 60px auto; text-align: center; }

@media (max-width: 720px) {
  .detail-grid { grid-template-columns: 1fr; }
  .topbar { gap: 10px; }
  .main-nav { order: 3; width: 100%; }
  .content { padding: 12px; }
  .data-table th, .data-table td { padding: 8px 10px; }
}