/* 基本リセット */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: #f9f9f9;
    color: #333;
    font-family: 'Noto Serif JP', serif;
    line-height: 1.6;
}

/* メインコンテナ */
.sale-container {
    max-width: 800px;
    margin: 60px auto;
    padding: 20px;
    text-align: center;
}

/* ヘッダー部分 */
.sale-header h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.5rem;
    letter-spacing: 0.1em;
    margin-bottom: 10px;
    color: #222;
}

.sub-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.9rem;
    letter-spacing: 0.3em;
    color: #a68d5e; /* 上品なゴールド系 */
    font-weight: bold;
}

.sale-period {
    font-size: 0.9rem;
    margin-bottom: 40px;
    color: #666;
}

/* クーポンカード */
.coupon-card {
    background: #fff;
    border: 1px solid #e0e0e0;
    padding: 10px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.coupon-inner {
    border: 1px dashed #a68d5e; /* 切り取り線風の装飾 */
    padding: 40px 20px;
}

.badge {
    display: inline-block;
    background: #222;
    color: #fff;
    padding: 4px 15px;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    margin-bottom: 15px;
}

.coupon-card h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.discount-value {
    margin-bottom: 25px;
    color: #c0392b; /* セール用の落ち着いた赤 */
}

.discount-value .number {
    font-family: 'Montserrat', sans-serif;
    font-size: 5rem;
    font-weight: bold;
    line-height: 1;
}

.discount-value .percent, .discount-value .currency {
    font-size: 1.5rem;
    font-weight: bold;
}

/* クーポンコード表示エリア */
.coupon-code-box {
    background: #f4f4f4;
    padding: 20px;
    margin-bottom: 25px;
}

.coupon-code-box p {
    font-size: 0.8rem;
    margin-bottom: 5px;
    color: #888;
}

.code {
    font-family: 'Montserrat', sans-serif;
    font-size: 2rem;
    font-weight: bold;
    letter-spacing: 0.1em;
    color: #222;
}

.note {
    font-size: 0.75rem;
    color: #888;
    margin-bottom: 30px;
    text-align: center;
}

/* ボタン */
.btn-shop {
    display: inline-block;
    background: #a68d5e;
    color: #fff;
    text-decoration: none;
    padding: 18px 40px;
    font-weight: bold;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.btn-shop:hover {
    background: #222;
    transform: translateY(-2px);
}

/* ショップ情報 */
.info-section {
    margin-top: 60px;
    border-top: 1px solid #eee;
    padding-top: 30px;
}

.info-section h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1rem;
    margin-bottom: 10px;
}

.info-section p {
    font-size: 0.85rem;
    color: #666;
}

.info-section a {
    color: #a68d5e;
    text-decoration: none;
}

/* レスポンシブ (スマホ対応) */
@media (max-width: 600px) {
    .sale-header h1 {
        font-size: 1.8rem;
    }
    .discount-value .number {
        font-size: 4rem;
    }
    .code {
        font-size: 1.5rem;
    }
}