/* ===========================
   全体共通
=========================== */
body {
    font-family: "Segoe UI", "Hiragino Sans", sans-serif;
    margin: 0;
    padding: 0;
    color: #0033A0;
}

/* 見出し */
h1, h2, h3 {
    margin: 0;
    padding: 0;
}

/* ボタン */
button, .btn {
    background: #0033A0;
    color: white;
    padding: 10px 18px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 15px;
}

button:hover, .btn:hover {
    background: #002070;
}

/* リンク */
a {
    color: #0033A0;
    text-decoration: none;
    font-weight: bold;
}

a:hover {
    text-decoration: underline;
}

/* 白いカード */
.card {
    background: rgba(255,255,255,0.92);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

/* フッター共通 */
.dragons-footer {
    text-align: center;
    padding: 20px;
    color: white;
    text-shadow: 0 0 8px rgba(0,0,0,0.7);
}

.dragons-footer img {
    width: 60px;
    display: block;
    margin: 0 auto 10px;
}