/* 大美互娱管理后台样式 - 深色+金色主题 */

:root {
    --primary: #FFD700;
    --primary-dark: #FFA500;
    --bg-dark: #121212;
    --bg-card: #1A1A1A;
    --bg-sidebar: #0D0D0D;
    --text-primary: #FFFFFF;
    --text-secondary: #999999;
    --border-color: #2A2A2A;
    --success: #48BB78;
    --warning: #F6AD55;
    --danger: #FC8181;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', -apple-system, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
}

/* 登录页 */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 48px 40px;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin-bottom: 16px;
    object-fit: contain;
}

.login-header h1 {
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 4px;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 14px;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form input {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 15px;
    transition: border-color 0.3s;
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary);
}

.btn-login {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    border-radius: 8px;
    color: var(--bg-dark);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 215, 0, 0.3);
}

.login-footer {
    text-align: center;
    margin-top: 24px;
    color: var(--text-secondary);
    font-size: 12px;
}

/* 布局 */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

/* 侧边栏 */
.sidebar {
    width: 260px;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 24px 20px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    margin-bottom: 12px;
    object-fit: contain;
}

.sidebar-header h2 {
    font-size: 18px;
    color: var(--primary);
    margin-bottom: 2px;
}

.sidebar-header p {
    color: var(--text-secondary);
    font-size: 12px;
}

.sidebar-nav {
    padding: 16px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px 24px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background: rgba(255, 215, 0, 0.05);
    color: var(--text-primary);
}

.nav-item.active {
    background: rgba(255, 215, 0, 0.1);
    color: var(--primary);
    border-left-color: var(--primary);
}

.nav-item .icon {
    margin-right: 12px;
    font-size: 18px;
}

/* 主内容区 */
.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 30px;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.content-header h1 {
    font-size: 24px;
    font-weight: 600;
}

.user-info {
    color: var(--text-secondary);
    font-size: 14px;
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all 0.3s;
}

.stat-card:hover {
    transform: translateY(-3px);
    border-color: var(--primary);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.stat-info h3 {
    font-size: 28px;
    font-weight: 700;
}

.stat-info p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* 仪表盘卡片 */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 24px;
}

.dashboard-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.card-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.card-body {
    padding: 16px 20px;
}

.list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.list-item:last-child {
    border-bottom: none;
}

.list-info strong {
    display: block;
    font-size: 14px;
    margin-bottom: 2px;
}

.list-info span {
    font-size: 12px;
    color: var(--text-secondary);
}

.list-date {
    font-size: 12px;
    color: var(--text-secondary);
}

/* 表格 */
.data-table {
    width: 100%;
    background: var(--bg-card);
    border-radius: 12px;
    border-collapse: collapse;
    overflow: hidden;
}

.data-table th,
.data-table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background: rgba(0, 0, 0, 0.3);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table tr:hover td {
    background: rgba(255, 215, 0, 0.02);
}

.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

/* 徽章 */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    background: rgba(255, 255, 255, 0.1);
}

.badge-success { background: rgba(72, 187, 120, 0.2); color: var(--success); }
.badge-warning { background: rgba(246, 173, 85, 0.2); color: var(--warning); }

/* 按钮 */
.btn-primary {
    display: inline-block;
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--bg-dark);
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 215, 0, 0.3);
}

.btn-secondary {
    display: inline-block;
    padding: 10px 20px;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    text-decoration: none;
    transition: all 0.3s;
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-link {
    color: var(--primary);
    text-decoration: none;
    margin-right: 12px;
    font-size: 14px;
}

.btn-link:hover {
    text-decoration: underline;
}

.btn-link.btn-danger {
    color: var(--danger);
}

/* 表单 */
.form-horizontal {
    max-width: 800px;
    background: var(--bg-card);
    padding: 30px;
    border-radius: 12px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.checkbox-label {
    display: flex !important;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.checkbox-label input {
    width: auto !important;
}

.form-actions {
    margin-top: 30px;
    display: flex;
    gap: 15px;
}

.file-input-group {
    display: flex;
    gap: 10px;
}

.file-input-group input {
    flex: 1;
}

.btn-upload {
    padding: 10px 20px;
    background: var(--border-color);
    border: none;
    border-radius: 8px;
    color: var(--text-primary);
    cursor: pointer;
}

/* 设置页面 */
.settings-form {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.settings-group {
    background: var(--bg-card);
    padding: 24px;
    border-radius: 12px;
}

.group-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    color: var(--primary);
}

.group-fields {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* 提醒 */
.alert {
    padding: 14px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.alert-success {
    background: rgba(72, 187, 120, 0.15);
    border: 1px solid rgba(72, 187, 120, 0.3);
    color: var(--success);
}

.alert-error {
    background: rgba(252, 129, 129, 0.15);
    border: 1px solid rgba(252, 129, 129, 0.3);
    color: var(--danger);
}

/* 响应式 */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        position: relative;
        height: auto;
    }
    
    .admin-layout {
        flex-direction: column;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}