/* ========================================
   后台管理界面 - 英超风格
   配色：英超紫白 + 凤凰金色
   ======================================== */

:root {
    --font-xs: 12px;
    --font-sm: 13px;
    --font-base: 14px;
    --font-md: 16px;
    --font-lg: 18px;
    --font-xl: 22px;
    --font-2xl: 28px;
    
    --space-xs: 8px;
    --space-sm: 12px;
    --space-md: 16px;
    --space-lg: 20px;
    --space-xl: 24px;
    --space-2xl: 32px;
}

.admin-body {
    font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
    font-size: var(--font-base);
    background: #f8f9fa;
    position: relative;
    overflow-x: hidden;
}

.admin-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 100vh;
}

/* ========================================
   侧边栏 - 英超紫色
   ======================================== */
.admin-sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    background: #ffffff;
    border-right: 1px solid #e5e7eb;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.05);
    padding: var(--space-lg) var(--space-md);
    overflow-y: auto;
    transition: all 0.3s ease;
    z-index: 10;
}

.admin-sidebar.collapsed {
    width: 68px;
}

.admin-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-xs) var(--space-md) var(--space-xs);
    border-bottom: 3px solid #d4af37;
    margin-bottom: var(--space-md);
}

.admin-brand img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.brand-text {
    font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
}

.brand-text strong {
    font-size: var(--font-md);
    background: linear-gradient(135deg, #d4af37 0%, #e6c24a 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

.brand-text small {
    font-size: var(--font-xs);
    color: #6b7280;
}

.admin-nav {
    display: grid;
    gap: var(--space-xs);
    margin-top: var(--space-sm);
}

.admin-nav-item {
    display: block;
    width: 100%;
    text-align: left;
    padding: var(--space-sm) var(--space-md);
    border-radius: 8px;
    background: transparent;
    color: #525252;
    font-size: var(--font-base);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    font-weight: 500;
    border: 1px solid transparent;
}

.admin-nav-item:hover {
    background: #f5f5f5;
    color: #171717;
    transform: translateX(4px);
    border-color: #e5e5e5;
}

.admin-nav-item.active {
    background: linear-gradient(135deg, #d4af37 0%, #b8860b 100%);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.3);
    border-color: transparent;
}

.admin-nav-item.link {
    text-decoration: none;
}

.admin-user {
    margin-top: var(--space-md);
    font-size: var(--font-xs);
    color: #6b7280;
    padding: var(--space-xs);
}

/* ========================================
   主内容区
   ======================================== */
.admin-main {
    padding: var(--space-md) var(--space-lg) var(--space-xl);
    background: #f8f9fa;
}

.admin-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    justify-content: space-between;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: var(--space-sm) var(--space-md);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    margin-bottom: var(--space-lg);
}

.sidebar-toggle {
    border: none;
    border-radius: 6px;
    padding: var(--space-xs);
    background: #f3f4f6;
    color: #37003c;
    cursor: pointer;
    transition: all 0.3s ease;
}

.sidebar-toggle:hover {
    background: #e5e7eb;
}

.admin-title {
    font-size: var(--font-lg);
    color: #171717;
    font-weight: 700;
    margin: 0;
}

.admin-panels {
    display: grid;
    gap: var(--space-md);
}

.panel {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: var(--space-lg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.panel.hidden { 
    display: none; 
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.panel-header h2 {
    font-size: var(--font-xl);
    color: #171717;
    margin: 0;
    font-weight: 700;
}

.panel-header h3 {
    font-size: var(--font-md);
    color: #171717;
    margin: 0;
}

.panel-actions {
    display: flex;
    gap: var(--space-sm);
}

/* ========================================
   KPI卡片
   ======================================== */
.cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.card.kpi {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: var(--space-lg);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.card.kpi:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: #d4af37;
}

.kpi-label {
    font-size: var(--font-sm);
    color: #6b7280;
    margin-bottom: var(--space-xs);
    font-weight: 500;
}

.kpi-value {
    margin-top: var(--space-xs);
    font-size: var(--font-xl);
    color: #171717;
    font-weight: 700;
}

/* ========================================
   图表样式
   ======================================== */
.chart-card { 
    padding: 0;
    margin-bottom: var(--space-md);
    overflow: hidden;
}

.chart-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid #e5e7eb;
    background: #f9fafb;
}

.chart-card-header h4 {
    font-size: var(--font-md);
    color: #171717;
    margin: 0;
    font-weight: 600;
}

.chart-refresh {
    background: transparent;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    padding: var(--space-xs) var(--space-sm);
    cursor: pointer;
    transition: all 0.3s ease;
    color: #6b7280;
}

.chart-refresh:hover {
    background: #f3f4f6;
    transform: rotate(180deg);
}

.chart-container {
    position: relative;
    padding: var(--space-lg);
}

/* ========================================
   管理列表项目
   ======================================== */
.articles-list,
.users-list,
.verification-list,
.image-hosts-list,
.sponsors-list {
    display: grid;
    gap: var(--space-sm);
}

.manage-item {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.manage-item:hover {
    border-color: #d4af37;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transform: translateX(4px);
}

.manage-item-info h4 {
    color: #111827;
    margin: 0 0 var(--space-xs) 0;
    font-size: var(--font-md);
    font-weight: 600;
}

.manage-item-info p {
    color: #6b7280;
    font-size: var(--font-sm);
    margin: 0;
}

.manage-item-actions {
    display: flex;
    gap: var(--space-xs);
}

/* ========================================
   按钮样式
   ======================================== */
.btn-small {
    padding: 6px 12px;
    font-size: var(--font-sm);
    border-radius: 6px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.btn-small.btn-primary {
    background: linear-gradient(135deg, #d4af37 0%, #b8860b 100%);
    color: white;
}

.btn-small.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.3);
}

.btn-small.btn-danger {
    background: #ef4444;
    color: white;
}

.btn-small.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.no-articles {
    text-align: center;
    padding: var(--space-2xl) var(--space-lg);
    color: #6b7280;
    font-size: var(--font-base);
}

/* ========================================
   财务管理
   ======================================== */
.finance-embed {
    display: grid;
    gap: var(--space-md);
}

.finance-form {
    background: #f9fafb;
    padding: var(--space-lg);
    border-radius: 8px;
    border: 1px solid #e5e7eb;
}

.finance-form h4 {
    font-size: var(--font-md);
    color: #171717;
    margin: 0 0 var(--space-md) 0;
    font-weight: 600;
}

.finance-form-row {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr auto;
    gap: var(--space-sm);
    align-items: center;
}

.finance-form-row input,
.finance-form-row select {
    padding: var(--space-sm);
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    font-size: var(--font-base);
}

.finance-form-row input:focus,
.finance-form-row select:focus {
    outline: none;
    border-color: #d4af37;
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.finance-summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
    padding: var(--space-md);
    background: #f9fafb;
    border-radius: 8px;
    margin-bottom: var(--space-md);
}

.summary-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    text-align: center;
}

.summary-label {
    font-size: var(--font-sm);
    color: #6b7280;
    font-weight: 500;
}

.summary-value {
    font-size: var(--font-lg);
    font-weight: 700;
    color: #111827;
}

.summary-value.income {
    color: #10b981;
}

.summary-value.expense {
    color: #ef4444;
}

/* ========================================
   交易列表
   ======================================== */
.transactions-list {
    max-height: 500px;
    overflow-y: auto;
}

.transaction-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm);
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    margin-bottom: var(--space-xs);
    transition: all 0.3s ease;
}

.transaction-item:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transform: translateX(3px);
}

.transaction-info {
    flex: 1;
}

.transaction-description {
    font-weight: 500;
    font-size: var(--font-base);
    color: #111827;
    margin-bottom: var(--space-xs);
}

.transaction-date {
    font-size: var(--font-xs);
    color: #6b7280;
}

.transaction-amount {
    font-size: var(--font-md);
    font-weight: 700;
    margin: 0 var(--space-md);
}

.transaction-amount.income {
    color: #10b981;
}

.transaction-amount.expense {
    color: #ef4444;
}

.transaction-actions {
    display: flex;
    gap: var(--space-xs);
}

.btn-delete {
    padding: 4px 10px;
    background: #fee;
    color: #dc2626;
    border: 1px solid #fecaca;
    border-radius: 6px;
    font-size: var(--font-xs);
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-delete:hover {
    background: #fecaca;
}

/* ========================================
   用户管理
   ======================================== */
.user-item {
    padding: var(--space-lg);
}

.user-item-content {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex: 1;
}

.user-item-header {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.user-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid #e5e7eb;
    object-fit: cover;
}

.user-meta-text {
    color: #6b7280;
    font-size: var(--font-sm);
    margin-top: var(--space-xs);
}

.admin-badge {
    background: linear-gradient(135deg, #d4af37 0%, #b8860b 100%);
    color: white;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}

.default-admin-text {
    color: #6b7280;
    font-size: var(--font-xs);
}

/* ========================================
   认证管理
   ======================================== */
.verification-section {
    margin-bottom: var(--space-lg);
    padding: var(--space-lg);
    border-radius: 8px;
    border: 1px solid #e5e7eb;
}

.verification-section.primary {
    background: rgba(212, 175, 55, 0.05);
    border-color: rgba(212, 175, 55, 0.2);
}

.verification-section.danger {
    background: rgba(239, 68, 68, 0.05);
    border-color: rgba(239, 68, 68, 0.2);
}

.verification-section h3 {
    font-size: var(--font-md);
    margin: 0 0 var(--space-md) 0;
    font-weight: 600;
}

.verification-section.primary h3 {
    color: #b8860b;
}

.verification-section.danger h3 {
    color: #dc2626;
}

.verification-form-row {
    display: flex;
    gap: var(--space-sm);
    align-items: flex-end;
}

.verification-form-field {
    flex: 1;
}

.verification-form-field label {
    display: block;
    margin-bottom: var(--space-xs);
    font-size: var(--font-base);
    font-weight: 500;
}

.verification-form-field select,
.verification-form-field input {
    width: 100%;
    padding: var(--space-sm);
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    font-size: var(--font-base);
}

.verification-request-item {
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
}

.verification-request-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid #e5e7eb;
    object-fit: cover;
}

.verification-request-info h4 {
    color: #111827;
    font-size: var(--font-md);
    margin: 0 0 var(--space-xs) 0;
}

.verification-request-info p {
    margin: 0 0 var(--space-xs) 0;
}

.verification-request-email {
    color: #171717;
    font-size: var(--font-sm);
}

.verification-request-reason {
    color: #6b7280;
    font-size: var(--font-sm);
}

.verification-request-time {
    color: #9ca3af;
    font-size: var(--font-xs);
    margin-top: var(--space-xs);
}

.verification-request-actions {
    flex-direction: column;
    gap: var(--space-xs);
    align-items: flex-end;
}

.verification-badge-selector {
    display: flex;
    gap: var(--space-xs);
    align-items: center;
}

/* ========================================
   图床管理
   ======================================== */
.search-input {
    width: 100%;
    padding: var(--space-sm);
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    font-size: var(--font-base);
    margin-bottom: var(--space-lg);
}

.search-input:focus {
    outline: none;
    border-color: #d4af37;
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.image-host-item {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-md);
    transition: all 0.3s ease;
    margin-bottom: var(--space-sm);
}

.image-host-item:hover {
    border-color: #d4af37;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.image-host-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.image-host-url-container {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.image-host-url {
    color: #3b82f6;
    text-decoration: none;
    font-size: var(--font-base);
    font-weight: 500;
    word-break: break-all;
    flex: 1;
}

.image-host-url:hover {
    color: #2563eb;
    text-decoration: underline;
}

.btn-copy {
    background: #f3f4f6;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    padding: 6px 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.btn-copy:hover {
    background: #e5e7eb;
    transform: scale(1.05);
}

.image-host-remark {
    color: #6b7280;
    font-size: var(--font-base);
    line-height: 1.6;
    padding: var(--space-sm);
    background: #f9fafb;
    border-radius: 6px;
    border-left: 3px solid #d4af37;
}

.image-host-meta {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
    font-size: var(--font-xs);
    color: #9ca3af;
}

/* ========================================
   移动端侧边栏
   ======================================== */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.sidebar-overlay.active {
    display: block;
    opacity: 1;
}

.sidebar-close {
    display: none;
    position: absolute;
    top: 10px;
    right: 10px;
    width: 36px;
    height: 36px;
    padding: 8px;
    background: #f5f5f5;
    border: 1px solid #e5e5e5;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
    color: #171717;
}

.sidebar-close:hover {
    background: #e5e5e5;
    transform: rotate(90deg);
}

/* ========================================
   响应式
   ======================================== */
@media (max-width: 1024px) {
    .cards { 
        grid-template-columns: repeat(2, 1fr); 
    }
    
    .finance-summary { 
        grid-template-columns: repeat(1, 1fr); 
    }
    
    .finance-form-row { 
        grid-template-columns: 1fr; 
    }
}

@media (max-width: 768px) {
    .admin-layout { 
        grid-template-columns: 1fr; 
    }
    
    .admin-sidebar { 
        position: fixed; 
        z-index: 1000; 
        height: 100vh;
        height: calc(100vh - env(safe-area-inset-bottom));
        left: 0; 
        top: 0; 
        width: 80%;
        max-width: 300px;
        transform: translateX(-100%); 
        transition: transform 0.3s ease;
        box-shadow: none;
    }
    
    .admin-sidebar.collapsed { 
        transform: translateX(0); 
        box-shadow: 4px 0 20px rgba(0, 0, 0, 0.15);
    }
    
    .sidebar-close {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .admin-header { 
        position: sticky; 
        top: 0; 
        z-index: 500;
        padding-top: env(safe-area-inset-top);
    }
    
    .admin-main {
        padding-top: env(safe-area-inset-top);
    }
    
    .manage-item { 
        flex-direction: column; 
        gap: var(--space-sm); 
        align-items: flex-start; 
    }
    
    .manage-item-actions { 
        width: 100%; 
        justify-content: flex-end; 
    }
    
    .transaction-item { 
        flex-direction: column; 
        align-items: flex-start; 
        gap: var(--space-xs); 
    }
    
    body.sidebar-open {
        overflow: hidden;
        position: fixed;
        width: 100%;
        height: 100%;
    }
    
    .cards {
        grid-template-columns: 1fr;
    }
    
    .verification-form-row {
        flex-direction: column;
        align-items: stretch;
    }
    
    .image-host-item {
        flex-direction: column;
        align-items: stretch;
    }
}

/* ========================================
   角色徽章
   ======================================== */
.admin-badge,
.writer-badge,
.guest-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: var(--font-xs);
    font-weight: 600;
    margin-left: var(--space-xs);
    line-height: 1.4;
}

.admin-badge {
    background: linear-gradient(135deg, #d4af37 0%, #e6c24a 100%);
    color: #ffffff;
}

.writer-badge {
    background: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
    color: #ffffff;
}

.guest-badge {
    background: #e5e7eb;
    color: #6b7280;
}

.role-select {
    padding: 6px 10px;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    font-size: var(--font-sm);
    background: #ffffff;
    cursor: pointer;
    min-width: 100px;
}

.role-select:focus {
    outline: none;
    border-color: #d4af37;
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

/* ========================================
   合作伙伴管理
   ======================================== */
.sponsor-item-admin {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sponsor-item-content {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex: 1;
}

.sponsor-avatar {
    width: 50px;
    height: 50px;
    border-radius: 8px;
    border: 2px solid #e5e7eb;
    object-fit: cover;
    flex-shrink: 0;
}

.sponsor-url {
    margin-top: var(--space-xs);
}

.sponsor-url a {
    color: #3b82f6;
    text-decoration: none;
    font-size: var(--font-sm);
}

.sponsor-url a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .sponsor-avatar {
        width: 40px;
        height: 40px;
    }
    
    .sponsor-item-admin {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }
}