/* 管理员面板样式 */

/* 管理员入口链接（文字样式，与footer文字一致） */
.admin-login-link {
    color: var(--text-muted);
    font-size: 12px;
    text-decoration: none;
    cursor: pointer;
    transition: color 0.3s ease;
    display: inline-block;
    margin-top: 8px;
}

.admin-login-link:hover {
    color: var(--accent);
    text-decoration: underline;
}

/* 兼容旧的按钮样式（如果其他地方使用） */
.admin-toggle-btn,
.admin-login-text-btn {
    background: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
    font-size: 16px;
    font-family: inherit;
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
    display: block;
    box-shadow: 0 0 10px rgba(255, 0, 0, 0.3);
}

.admin-toggle-btn:hover,
.admin-login-text-btn:hover {
    background: var(--accent-soft);
    box-shadow: 0 0 20px var(--accent-glow);
    transform: translateY(-2px);
}

/* 管理员面板遮罩层 */
.admin-panel-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow-y: auto;
}

.admin-panel-overlay.show {
    display: flex;
}

/* 管理员面板容器 */
.admin-panel {
    background: var(--bg-elevated);
    border: 2px solid var(--accent);
    border-radius: 16px;
    max-width: 1200px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.5),
        0 0 40px rgba(255, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    position: relative;
    backdrop-filter: blur(20px);
}

/* 管理员面板头部 */
.admin-panel-header {
    padding: 24px 28px;
    border-bottom: 2px solid rgba(255, 0, 0, 0.3);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, rgba(255, 0, 0, 0.05), rgba(139, 0, 0, 0.05));
    border-radius: 16px 16px 0 0;
}

.admin-header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin-right: 20px;
}

.admin-header-actions {
    display: flex;
    gap: 10px;
}

.admin-panel-title {
    font-size: 28px;
    color: var(--accent);
    font-weight: 700;
    text-shadow: 
        0 0 10px var(--accent-glow),
        0 0 20px rgba(255, 0, 0, 0.5);
    letter-spacing: 1px;
}

.admin-panel-close {
    width: 30px;
    height: 30px;
    border: none;
    background: transparent;
    color: var(--accent);
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.admin-panel-close:hover {
    background: var(--accent-soft);
    transform: rotate(90deg);
}

/* 管理员面板内容 */
.admin-panel-content {
    padding: 32px 28px;
}

/* 登录表单 */
#admin-login-section {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
    padding: 40px 20px;
}

.admin-login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 100%;
    max-width: 420px;
    margin: 0 auto;
    padding: 40px;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.4), rgba(20, 0, 0, 0.6));
    border: 1px solid rgba(255, 0, 0, 0.2);
    border-radius: 12px;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.admin-login-form input {
    padding: 14px 16px;
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(255, 0, 0, 0.3);
    border-radius: 8px;
    color: var(--text-main);
    font-family: 'Courier New', monospace;
    font-size: 15px;
    width: 100%;
    box-sizing: border-box;
    transition: all 0.3s ease;
}

.admin-login-form input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.admin-login-form input:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(0, 0, 0, 0.6);
    box-shadow: 
        0 0 15px var(--accent-glow),
        inset 0 0 10px rgba(255, 0, 0, 0.1);
    transform: translateY(-1px);
}

.admin-login-form button {
    width: 100%;
    box-sizing: border-box;
    padding: 14px;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-top: 8px;
}

/* 管理员功能区域 */
.admin-functions {
    display: none;
}

.admin-functions.show {
    display: block;
}

/* 统计面板 */
.admin-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 32px;
}

.admin-stat-item {
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.4), rgba(20, 0, 0, 0.5));
    padding: 24px 20px;
    border-radius: 12px;
    border: 2px solid rgba(255, 0, 0, 0.2);
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 
        0 4px 16px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
}

.admin-stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0.6;
}

.admin-stat-item:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: 
        0 8px 24px rgba(0, 0, 0, 0.4),
        0 0 20px rgba(255, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.admin-stat-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

.admin-stat-value {
    font-size: 32px;
    color: var(--accent);
    font-weight: 700;
    text-shadow: 0 0 10px var(--accent-glow);
    line-height: 1.2;
}

/* 生成邀请码区域 */
.admin-generate-section {
    margin-bottom: 28px;
    padding: 28px;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.4), rgba(20, 0, 0, 0.5));
    border-radius: 12px;
    border: 2px solid rgba(255, 0, 0, 0.2);
    box-shadow: 
        0 4px 16px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.admin-generate-section h3 {
    color: var(--accent);
    margin-bottom: 20px;
    font-size: 20px;
    font-weight: 600;
    text-shadow: 0 0 8px var(--accent-glow);
    letter-spacing: 0.5px;
}

.admin-generate-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}

.admin-batch-generate {
    display: flex;
    gap: 10px;
    align-items: center;
}

.admin-input-small {
    padding: 10px 14px;
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(255, 0, 0, 0.3);
    border-radius: 8px;
    color: var(--text-main);
    font-family: 'Courier New', monospace;
    width: 120px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.admin-input-small:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(0, 0, 0, 0.6);
    box-shadow: 0 0 10px var(--accent-glow);
}

.admin-section-title {
    color: var(--accent);
    margin-bottom: 20px;
    font-size: 20px;
    font-weight: 600;
    text-shadow: 0 0 8px var(--accent-glow);
    letter-spacing: 0.5px;
}

.admin-new-codes {
    margin-top: 15px;
    padding: 15px;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 6px;
    border: 1px solid rgba(255, 0, 0, 0.3);
    max-height: 200px;
    overflow-y: auto;
    font-family: 'Courier New', monospace;
    white-space: pre-wrap;
    word-break: break-all;
    color: var(--text-light);
}

/* 按钮样式 */
.admin-btn {
    padding: 12px 24px;
    background: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
    border-radius: 8px;
    cursor: pointer;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    position: relative;
    overflow: hidden;
}

.admin-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.admin-btn:hover::before {
    left: 100%;
}

.admin-btn:hover {
    background: var(--accent);
    color: var(--bg);
    box-shadow: 
        0 0 20px var(--accent-glow),
        0 4px 12px rgba(255, 0, 0, 0.3);
    transform: translateY(-2px);
}

.admin-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.admin-btn-primary {
    background: var(--accent);
    color: var(--bg);
}

.admin-btn-primary:hover {
    background: var(--accent-strong);
}

.admin-btn-secondary {
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
    padding: 8px 16px;
    font-size: 13px;
}

/* 错误和成功消息 */
.admin-message {
    padding: 14px 18px;
    border-radius: 8px;
    margin-top: 12px;
    font-size: 14px;
    font-weight: 500;
    border: 2px solid;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.admin-message.error {
    background: rgba(255, 0, 0, 0.15);
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 12px rgba(255, 0, 0, 0.3);
}

.admin-message.success {
    background: rgba(0, 255, 0, 0.15);
    border-color: rgba(0, 255, 0, 0.5);
    color: #00ff00;
    box-shadow: 0 0 12px rgba(0, 255, 0, 0.3);
}

/* 复制操作区域 */
.admin-copy-section {
    margin: 28px 0;
    padding: 20px;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.3), rgba(20, 0, 0, 0.4));
    border-radius: 12px;
    border: 2px solid rgba(255, 0, 0, 0.2);
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    box-shadow: 
        0 4px 16px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

/* 邀请码列表区域 */
.admin-codes-section {
    margin-top: 32px;
    padding: 24px;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.2), rgba(20, 0, 0, 0.3));
    border-radius: 12px;
    border: 2px solid rgba(255, 0, 0, 0.15);
}

/* 退出登录区域 */
.admin-logout-section {
    margin-top: 40px;
    padding-top: 32px;
    border-top: 2px solid rgba(255, 0, 0, 0.2);
    display: flex;
    justify-content: center;
    align-items: center;
}

.admin-logout-section .admin-btn {
    min-width: 200px;
    padding: 14px 32px;
    font-size: 16px;
}

.admin-codes-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 15px;
}

.admin-filter-buttons {
    display: flex;
    gap: 10px;
}

.admin-filter-btn {
    padding: 8px 20px;
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(255, 0, 0, 0.2);
    color: var(--text-muted);
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
}

.admin-filter-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(255, 0, 0, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 0, 0, 0.2);
}

.admin-filter-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg);
    box-shadow: 0 0 15px var(--accent-glow);
    font-weight: 600;
}

/* 邀请码列表 */
.admin-codes-list {
    min-height: 200px;
    max-height: 400px;
    overflow-y: auto;
}

.admin-code-item {
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.4), rgba(20, 0, 0, 0.5));
    border: 2px solid rgba(255, 0, 0, 0.2);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 16px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    transition: all 0.3s ease;
    box-shadow: 
        0 2px 8px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.admin-code-item:hover {
    transform: translateX(4px);
    border-color: rgba(255, 0, 0, 0.4);
    box-shadow: 
        0 4px 16px rgba(0, 0, 0, 0.3),
        0 0 12px rgba(255, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.admin-code-header {
    display: flex;
    align-items: center;
    gap: 15px;
    flex: 1;
}

.admin-code-text {
    font-family: 'Courier New', monospace;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: 2px;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.2);
}

.admin-code-status {
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: bold;
}

.admin-code-status.unused {
    background: rgba(0, 255, 0, 0.2);
    border: 1px solid rgba(0, 255, 0, 0.5);
    color: #00ff00;
}

.admin-code-status.partial {
    background: rgba(255, 255, 0, 0.2);
    border: 1px solid rgba(255, 255, 0, 0.5);
    color: #ffff00;
}

.admin-code-status.used {
    background: rgba(255, 0, 0, 0.2);
    border: 1px solid rgba(255, 0, 0, 0.5);
    color: var(--accent);
}

.admin-code-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 5px;
    font-size: 13px;
    color: var(--text-muted);
}

.admin-code-info-item {
    display: flex;
    gap: 5px;
}

.admin-code-info-label {
    color: var(--text-muted);
}

.admin-code-info-value {
    color: var(--text-main);
}

.admin-code-actions {
    display: flex;
    gap: 10px;
}

.admin-code-action-btn {
    padding: 8px 16px;
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(255, 0, 0, 0.2);
    color: var(--text-main);
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
}

.admin-code-action-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(255, 0, 0, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(255, 0, 0, 0.2);
}

.admin-code-action-btn.delete:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(255, 0, 0, 0.1);
}

/* 分页 */
.admin-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-top: 20px;
    padding: 15px;
}

.admin-pagination-btn {
    padding: 10px 20px;
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(255, 0, 0, 0.2);
    color: var(--text-main);
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.admin-pagination-btn:hover:not(:disabled) {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(255, 0, 0, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 0, 0, 0.2);
}

.admin-pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.admin-pagination-info {
    color: var(--text-muted);
    font-size: 13px;
}

/* 空状态 */
.admin-empty-message {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .admin-panel {
        max-width: 100%;
        margin: 10px;
    }
    
    .admin-stats {
        grid-template-columns: 1fr;
    }
    
    .admin-generate-actions {
        flex-direction: column;
    }
    
    .admin-generate-actions input {
        width: 100%;
    }
    
    .admin-code-item {
        flex-direction: column;
    }
    
    .admin-code-actions {
        width: 100%;
        justify-content: flex-end;
    }
    
    .admin-codes-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* 禁用状态 */
.admin-code-item.disabled {
    opacity: 0.6;
}

.admin-code-item.disabled .admin-code-text {
    text-decoration: line-through;
}

/* 使用记录模态框 */
.admin-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.admin-modal {
    background: var(--bg-elevated);
    border: 2px solid var(--accent);
    border-radius: 12px;
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-glow);
    display: flex;
    flex-direction: column;
}

.admin-modal-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 0, 0, 0.3);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-modal-header h3 {
    color: var(--accent);
    margin: 0;
    font-size: 20px;
}

.admin-modal-close {
    width: 30px;
    height: 30px;
    border: none;
    background: transparent;
    color: var(--accent);
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.admin-modal-close:hover {
    background: var(--accent-soft);
    transform: rotate(90deg);
}

.admin-modal-content {
    padding: 20px;
    flex: 1;
    overflow-y: auto;
}

.admin-modal-footer {
    padding: 20px;
    border-top: 1px solid rgba(255, 0, 0, 0.3);
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

/* 使用记录列表 */
.usage-history-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.usage-history-item {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 0, 0, 0.2);
    border-radius: 8px;
    padding: 15px;
}

.usage-history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 0, 0, 0.2);
}

.usage-index {
    color: var(--accent);
    font-weight: bold;
    font-size: 16px;
}

.usage-date {
    color: var(--text-muted);
    font-size: 14px;
}

.usage-history-details {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 13px;
    color: var(--text-main);
}

.usage-history-details div {
    line-height: 1.6;
}

.usage-history-details strong {
    color: var(--accent);
    margin-right: 5px;
}

/* 小按钮样式 */
.admin-code-action-btn.small {
    padding: 4px 8px;
    font-size: 11px;
}