:root {
    --primary-color: #0088cc;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
}

body {
    background-color: var(--bg-color);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding-bottom: 80px;
}

/* 用户头像 */
.avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 3px solid var(--primary-color);
    object-fit: cover;
}

/* 钱包状态 */
.wallet-connected {
    background: linear-gradient(45deg, #4CAF50, #2E7D32);
    color: white;
}

.wallet-disconnected {
    background: linear-gradient(45deg, #757575, #424242);
    color: white;
}

/* 支付按钮 */
.payment-btn {
    transition: all 0.3s ease;
}

.payment-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

/* 网络状态指示器 */
.network-indicator {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
}

.testnet {
    background: #ff9800;
    color: white;
}

.mainnet {
    background: #4caf50;
    color: white;
}

/* 支付记录 */
.payment-item {
    border-left: 4px solid var(--primary-color);
    margin-bottom: 10px;
    transition: all 0.3s ease;
}

.payment-item:hover {
    transform: translateX(5px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.payment-success {
    border-left-color: var(--success-color);
}

.payment-pending {
    border-left-color: var(--warning-color);
}

.payment-failed {
    border-left-color: var(--danger-color);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .container {
        padding-left: 10px;
        padding-right: 10px;
    }

    .avatar {
        width: 60px;
        height: 60px;
    }
}

/* 加载动画 */
.loader {
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Toast 通知 */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1050;
}

.toast {
    min-width: 250px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    margin-bottom: 10px;
    animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* 主题适配 Telegram */
.twa-background {
    background: var(--tg-theme-bg-color, #ffffff);
}

.twa-text {
    color: var(--tg-theme-text-color, #000000);
}

.twa-hint {
    color: var(--tg-theme-hint-color, #999999);
}

.twa-link {
    color: var(--tg-theme-link-color, #2481cc);
}

.twa-button {
    background: var(--tg-theme-button-color, #2481cc);
    color: var(--tg-theme-button-text-color, #ffffff);
}

.twa-secondary-bg {
    background: var(--tg-theme-secondary-bg-color, #f0f0f0);
}