/* MultiTenant Tenants Management Styles */
:root {
  --bg: #f5f7fb;         /* light background */
  --panel: #ffffff;       /* white card */
  --panel-2: #f9fafb;     /* subtle gradient end */
  --text: #111827;        /* gray-900 */
  --muted: #6b7280;       /* gray-500 */
  --primary: #2563eb;     /* blue-600 */
  --primary-2: #1d4ed8;   /* blue-700 */
  --accent: #0891b2;      /* cyan-700 */
  --danger: #dc2626;      /* red-600 */
  --success: #16a34a;     /* green-600 */
  --border: #e5e7eb;      /* gray-200 */
  --table-stripe: #f9fafb;
  --radius: 10px;
  --shadow: 0 8px 24px rgba(0,0,0,.08);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: radial-gradient(1200px 800px at 10% -10%, #ffffff 0%, transparent 55%),
              radial-gradient(1200px 800px at 110% 10%, #eef2ff 0%, transparent 55%),
              var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Noto Sans JP, sans-serif;
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 24px auto 64px;
  padding: 0 16px;
}

.card {
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel-2) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.card-header h2 {
  font-size: 20px;
  margin: 0;
}

.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--text); }

.toolbar { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: #eef2ff;
  color: var(--primary);
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
}
.btn:hover { background: #e0e7ff; border-color: #d1d5db; }
.btn.primary { background: linear-gradient(180deg, var(--primary) 0%, var(--primary-2) 100%); color: #ffffff; border-color: transparent; }
.btn.primary:hover { filter: brightness(1.03); }

.card-body { padding: 16px 20px; }

.table-wrap { overflow: auto; border-radius: 8px; border: 1px solid var(--border); background: #fff; }
.table { width: 100%; border-collapse: separate; border-spacing: 0; }
.table thead th { position: sticky; top: 0; background: #f3f4f6; color: #374151; text-align: left; font-weight: 600; font-size: 12px; letter-spacing: .02em; }
.table th, .table td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
.table tbody tr:hover { background: #eff6ff; }
.table tbody tr:nth-child(2n) { background: var(--table-stripe); }

.kv { display: grid; grid-template-columns: 200px 1fr; gap: 8px 16px; margin: 8px 0; }
.kv label { color: var(--muted); padding: 6px 0; }
.input, .textarea {
  width: 100%;
  background: #ffffff;
  color: var(--text);
  border: 1px solid #d1d5db;
  border-radius: 8px;
  padding: 10px 12px;
}
.input:focus, .textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.15); }
.textarea { min-height: 80px; resize: vertical; }

.form-actions { display: flex; gap: 12px; margin-top: 12px; }
.help { color: var(--muted); font-size: 12px; }

.alerts { display: grid; gap: 8px; margin: 16px 0; }
.alert { padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border); }
.alert.error { background: #fee2e2; color: #991b1b; border-color: #fecaca; }
.alert.notice { background: #dcfce7; color: #14532d; border-color: #bbf7d0; }

.footer { color: var(--muted); font-size: 12px; margin-top: 24px; }