* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: #f5f5f7;
    color: #1d1d1f;
    line-height: 1.5;
    padding: 16px;
    max-width: 1200px;
    margin: 0 auto;
}

.container {
    background-color: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.header {
    background: linear-gradient(135deg, #007AFF 0%, #5856D6 100%);
    color: white;
    padding: 20px;
    text-align: center;
}

.header h1 {
    font-size: 22px;
    margin-bottom: 8px;
}

.header p {
    font-size: 14px;
    opacity: 0.9;
}

.warning-section {
    padding: 16px;
    background-color: #ff3b30;
    color: white;
    margin: 16px;
    border-radius: 8px;
    font-weight: 500;
}

.purchase-sections {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    padding: 16px;
}

.purchase-section {
    padding: 20px;
    background: linear-gradient(135deg, #FF2D55 0%, #FF375F 100%);
    color: white;
    border-radius: 12px;
    text-align: center;
}

.purchase-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.purchase-desc {
    font-size: 14px;
    margin-bottom: 16px;
    opacity: 0.9;
}

.btn-purchase {
    background-color: white;
    color: #FF2D55;
    font-weight: 600;
    padding: 12px 24px;
    border-radius: 24px;
    display: inline-block;
    text-decoration: none;
    transition: all 0.2s ease;
}

.btn-purchase:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.accounts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    padding: 16px;
}

.account-card {
    border: 1px solid #e5e5e7;
    border-radius: 10px;
    padding: 16px;
    background-color: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: all 0.2s ease;
}

.account-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.account-header {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #1d1d1f;
}

.account-email {
    font-size: 15px;
    margin-bottom: 8px;
    word-break: break-all;
    color: #3a3a3c;
}

.account-detail {
    font-size: 14px;
    color: #8e8e93;
    margin-bottom: 4px;
}

.account-status {
    display: inline-flex;
    align-items: center;
    padding: 4px 8px;
    background-color: #34C759;
    color: white;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    margin-top: 8px;
}

.copy-buttons {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}

.btn {
    flex: 1;
    padding: 8px 12px;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.btn-copy {
    background-color: #007AFF;
    color: white;
}

.btn-copy:hover {
    background-color: #0056CC;
}

.btn-copy:active {
    transform: scale(0.98);
}

.important-section {
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 12px;
    margin: 16px;
}

.section-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #1d1d1f;
}

.tips-list {
    list-style-type: none;
}

.tip-item {
    display: flex;
    margin-bottom: 16px;
    padding: 12px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.tip-number {
    background-color: #007AFF;
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    margin-right: 12px;
    flex-shrink: 0;
}

.tip-content {
    font-size: 14px;
    color: #3a3a3c;
}

.footer {
    text-align: center;
    padding: 20px;
    font-size: 12px;
    color: #8e8e93;
}

@media (max-width: 768px) {
    .accounts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .purchase-sections {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .accounts-grid {
        grid-template-columns: 1fr;
    }
}