/* ------------------------------------
   ベース設定
------------------------------------ */
body {
  font-family: "Helvetica Neue", system-ui, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.8;
  color: #2a2a2a;
  background: #f8fafc;
}

a {
  color: #0066cc;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px;
}

/* ------------------------------------
   ★ ヘッダー（最初の青い背景デザイン）
------------------------------------ */
header {
  background: #005bbb; /* ← 濃い青の背景 */
  padding: 50px 20px;
  text-align: center;
  color: #fff; /* ← 文字は白 */
}

header h1 {
  margin: 0 0 15px;
  font-size: 32px;
  font-weight: 700;
  color: #fff; /* 白文字 */
}

header p {
  margin: 6px 0;
  font-size: 16px;
  color: #e8f3ff; /* 少し淡い白で読みやすく */
}

.btn-primary {
  display: inline-block;
  margin-top: 20px;
  padding: 14px 24px;
  background: #ffffff;
  color: #005bbb;
  border-radius: 8px;
  font-weight: bold;
  box-shadow: 0 3px 8px rgba(0,0,0,0.15);
  transition: 0.2s;
}

.btn-primary:hover {
  background: #e6e6e6;
  transform: translateY(-2px);
}

/* ------------------------------------
   見出し
------------------------------------ */
h1 {
  border-left: 6px solid #005bbb;
  padding-left: 12px;
  margin-top: 0;
}

h2 {
  border-left: 4px solid #00a86b;
  padding-left: 10px;
  margin-top: 40px;
  font-size: 22px;
}

/* ------------------------------------
   パンくず
------------------------------------ */
.breadcrumb {
  font-size: 14px;
  margin: 20px 0;
  color: #555;
}

.breadcrumb a {
  color: #0066cc;
}

/* ------------------------------------
   テーブル
------------------------------------ */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 25px 0;
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

th, td {
  padding: 14px;
  border-bottom: 1px solid #eee;
}

th {
  background: #f0f6ff;
  font-weight: bold;
  color: #004a99;
}

/* ------------------------------------
   CTA
------------------------------------ */
.cta {
  background: #eaf6ff;
  border-left: 5px solid #0066cc;
  padding: 20px;
  border-radius: 6px;
  margin: 30px 0;
}

/* ------------------------------------
   フォーム
------------------------------------ */
form label {
  display: block;
  margin-bottom: 18px;
  font-weight: 600;
}

form input,
form textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #ccd6e0;
  border-radius: 6px;
  font-size: 16px;
  background: #fff;
}

form input:focus,
form textarea:focus {
  border-color: #0066cc;
  box-shadow: 0 0 4px rgba(0,102,204,0.3);
  outline: none;
}

form button {
  padding: 14px 24px;
  background: #0066cc;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  cursor: pointer;
  font-weight: bold;
  box-shadow: 0 3px 8px rgba(0,0,0,0.15);
}

form button:hover {
  background: #0052a3;
  transform: translateY(-2px);
}

/* ------------------------------------
   フッター
------------------------------------ */
footer {
  text-align: center;
  padding: 25px;
  background: #eef5ff;
  border-top: 2px solid #d6e6ff;
  margin-top: 50px;
  font-size: 14px;
}

footer a {
  margin: 0 6px;
  color: #004a99;
}

/* ------------------------------------
   スマホ対応
------------------------------------ */
@media (max-width: 600px) {
  header h1 {
    font-size: 26px;
  }

  .btn-primary {
    width: 100%;
    display: block; box-sizing: border-box;
  }

  table, th, td {
    font-size: 14px;
  }
}