* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
  background: #f4f6f8;
  color: #2b2b2b;
}

/* ヘッダー */
.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  background: #1f3a5f;
  color: #fff;
  padding: 0 20px;
  height: 52px;
}

.brand { font-weight: bold; font-size: 15px; }

.mainnav { display: flex; gap: 4px; flex: 1; }

.mainnav a {
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 14px;
  text-decoration: none;
  color: #fff;
}
.mainnav a.active { background: rgba(255, 255, 255, 0.18); }
.mainnav a:hover { background: rgba(255, 255, 255, 0.12); }

.user-area { display: flex; align-items: center; gap: 12px; font-size: 13px; }
.user-area .logout { color: #cfe0f5; }

.container { max-width: 1000px; margin: 0 auto; padding: 24px 20px; }

/* ログイン・初回設定カード */
.auth-card {
  max-width: 380px;
  margin: 80px auto 0;
  background: #fff;
  border: 1px solid #dde3ea;
  border-radius: 10px;
  padding: 32px 28px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.auth-card h1 { margin: 0 0 12px; font-size: 20px; text-align: center; }

.auth-note { font-size: 13px; color: #5a6573; text-align: center; margin-bottom: 20px; }

.auth-card label {
  display: block;
  font-size: 13px;
  color: #44505e;
  margin-bottom: 14px;
}

.auth-card input {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 9px 10px;
  font-size: 14px;
  border: 1px solid #c4ccd6;
  border-radius: 6px;
}

.auth-card input:focus { outline: 2px solid #3f72af; border-color: #3f72af; }

.btn-primary {
  width: 100%;
  padding: 10px;
  margin-top: 6px;
  font-size: 14px;
  font-weight: bold;
  color: #fff;
  background: #2d6cdf;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

.btn-primary:hover { background: #2459bd; }

/* お知らせ・エラー表示 */
.alert { padding: 10px 12px; border-radius: 6px; font-size: 13px; margin-bottom: 16px; }
.alert-error { background: #fdecea; color: #b3261e; border: 1px solid #f5c6c2; }
.alert-info { background: #e8f1fd; color: #1d4f91; border: 1px solid #c3d9f5; }

/* 画面見出し */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.page-header h1 { font-size: 20px; margin: 0; }

/* 段階1の仮置き案内カード */
.placeholder-card, .card {
  background: #fff;
  border: 1px solid #dde3ea;
  border-radius: 10px;
  padding: 24px 26px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  font-size: 14px;
  line-height: 1.8;
  color: #44505e;
}
.placeholder-card p { margin: 0 0 8px; }

.card h2 { font-size: 16px; margin: 0 0 12px; color: #2b2b2b; }
.card .note { font-size: 13px; color: #5a6573; }
.card code { background: #eef1f4; padding: 2px 6px; border-radius: 4px; font-size: 12px; }

/* アカウント表 */
.acct-table { width: 100%; border-collapse: collapse; margin-top: 8px; font-size: 13px; }
.acct-table th, .acct-table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid #e6eaef; }
.acct-table th { color: #5a6573; font-weight: 600; }
.acct-table .ok { color: #1a7f37; font-weight: 600; }
.acct-table .ng { color: #b3261e; font-weight: 600; }
.acct-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.btn-secondary.danger { color: #b3261e; border-color: #f0c0bc; }
.lvl-warn { color: #9a6700; }
.lvl-expired { color: #b3261e; }
.lvl-ok { color: #1a7f37; }
.lvl-unknown { color: #8a93a0; }