/* 特典ボタンとポップオーバーのスタイル */
.reward-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%) translateX(-50%);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid white;
    cursor: pointer;
    transition: all 0.2s ease;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.reward-btn.reward-achieved {
    background-color: #10B981; /* green-500 */
    color: white;
}

.reward-btn.reward-achieved:hover {
    background-color: #059669; /* green-600 */
    transform: translateY(-50%) translateX(-50%) scale(1.1);
}

.reward-btn.reward-locked {
    background-color: #9CA3AF; /* gray-400 */
    color: white;
}

.reward-btn.reward-locked:hover {
    background-color: #6B7280; /* gray-500 */
    transform: translateY(-50%) translateX(-50%) scale(1.1);
}

/* ポップオーバー */
.reward-popover {
    position: absolute;
    bottom: 100%;
    transform: translateX(-50%);
    margin-bottom: 8px;
    width: 256px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    border: 1px solid #E5E7EB;
    padding: 16px;
    display: none;
    z-index: 20;
}

.reward-popover.show {
    display: block;
}

/* 三角形の矢印 */
.popover-arrow {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 8px solid white;
}

/* ポップオーバー内容 */
.popover-content {
    text-align: center;
}

.popover-header {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
}

.popover-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 8px;
}

.popover-icon.achieved {
    background-color: #10B981;
    color: white;
}

.popover-icon.locked {
    background-color: #9CA3AF;
    color: white;
}

.popover-title {
    font-weight: bold;
    color: #1F2937;
    margin: 0;
    font-size: 14px;
}

.popover-reward-title {
    font-weight: 600;
    font-size: 16px;
    color: #111827;
    margin: 0 0 4px 0;
}

.popover-desc {
    font-size: 14px;
    color: #6B7280;
    margin: 0 0 12px 0;
    line-height: 1.4;
}

/* ステータスバッジ */
.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 500;
}

.status-badge.achieved {
    background-color: #D1FAE5;
    color: #065F46;
}

.status-badge.locked {
    background-color: #F3F4F6;
    color: #374151;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .reward-popover {
        width: 240px;
        font-size: 13px;
    }
    
    .popover-reward-title {
        font-size: 15px;
    }
    
    .popover-desc {
        font-size: 13px;
    }
}

/* 位置調整（左端・右端のポップオーバー） */
.reward-popover[style*="left: 10%"] {
    transform: translateX(-20%);
}

.reward-popover[style*="left: 90%"] {
    transform: translateX(-80%);
}

.reward-popover[style*="left: 100%"] {
    transform: translateX(-90%);
}