/* 全体設定 */
body {
    font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
    background-color: #fcfcfc;
    color: #333;
    margin: 0;
    line-height: 1.6;
}

.container {
    max-width: 480px;
    margin: 0 auto;
    background: #fff;
    min-height: 100vh;
    padding: 0 24px;
    box-sizing: border-box;
    box-shadow: 0 0 20px rgba(0,0,0,0.03);
}

/* 更新バッジ */
.top-info {
    padding-top: 20px;
    text-align: center;
}

.badge {
    background: #444;
    color: #fff;
    font-size: 11px;
    padding: 3px 10px;
    border-radius: 2px;
    letter-spacing: 0.05em;
}

/* ヘッダー */
header {
    text-align: center;
    padding: 30px 0;
}

.brand-logo {
    color: #bf0000;
    font-weight: 900;
    font-size: 1.4rem;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 1rem;
    color: #888;
    margin: 0;
}

.hero-reward {
    margin-top: 10px;
    color: #bf0000;
}

.hero-reward .amount {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
}

.hero-reward .unit {
    font-size: 1.1rem;
    font-weight: bold;
    margin-left: 5px;
}

/* ボタンセクション */
.cta-section {
    text-align: center;
    padding: 20px 0;
}

.cta-text {
    font-size: 0.9rem;
    font-weight: bold;
    color: #bf0000;
    margin-bottom: 12px;
}

.main-button {
    display: block;
    background: #bf0000;
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.25rem;
    padding: 22px;
    border-radius: 12px;
    transition: all 0.3s ease;
    box-shadow: 0 6px 15px rgba(191, 0, 0, 0.2);
}

.main-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(191, 0, 0, 0.3);
}

.main-button:active {
    transform: translateY(2px);
    box-shadow: 0 2px 5px rgba(191, 0, 0, 0.2);
}

.sub-text {
    font-size: 0.75rem;
    color: #999;
    margin-top: 15px;
}

/* ステップガイド */
.step-guide {
    margin-top: 40px;
}

.step-guide h2 {
    font-size: 1rem;
    text-align: center;
    margin-bottom: 20px;
    color: #444;
}

.step-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.step {
    display: flex;
    align-items: center;
    background: #f8f8f8;
    padding: 16px;
    border-radius: 10px;
}

.step.active {
    background: #fff9f9;
    border: 1px solid #ffeded;
}

.step .num {
    background: #ddd;
    color: #fff;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.8rem;
    margin-right: 15px;
}

.step.active .num {
    background: #bf0000;
}

.step p {
    margin: 0;
    font-size: 0.85rem;
    color: #555;
}

.step strong {
    color: #333;
}

/* ショップリスト */
.shop-list {
    margin: 40px 0;
    text-align: center;
}

.shop-list p {
    font-size: 0.75rem;
    color: #bbb;
    margin-bottom: 12px;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
}

.tags span {
    background: #eee;
    color: #666;
    font-size: 11px;
    padding: 5px 12px;
    border-radius: 4px;
}

footer {
    padding-bottom: 40px;
    text-align: center;
    font-size: 0.7rem;
    color: #ccc;
}