/* ========================================
   慧眼成分分析 - 管理后台样式
   现代化、专业级UI设计
   ======================================== */

:root {
    --primary-color: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #818cf8;
    --secondary-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    --success-color: #10b981;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --bg-dark: #1f2937;
    
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-tertiary: #9ca3af;
    
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-secondary);
    overflow-x: hidden;
}

/* ========================================
   登录页面样式
   ======================================== */

.login-container {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.login-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    z-index: 0;
}

.bg-animation {
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
    animation: bgFloat 20s ease-in-out infinite;
}

@keyframes bgFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
}

.login-box {
    position: relative;
    z-index: 1;
    width: 420px;
    padding: 48px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    text-align: center;
    margin-bottom: 40px;
}

.logo-container {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(79, 70, 229, 0.3);
    animation: logoFloat 3s ease-in-out infinite;
}

@keyframes logoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.logo-container i {
    font-size: 40px;
    color: white;
}

.login-header h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

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

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

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper i {
    position: absolute;
    left: 16px;
    color: var(--text-tertiary);
    font-size: 16px;
}

.input-wrapper input {
    width: 100%;
    padding: 14px 16px 14px 48px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    transition: var(--transition);
    background: var(--bg-primary);
}

.input-wrapper input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
}

.remember-me input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.remember-me span {
    font-size: 14px;
    color: var(--text-secondary);
}

.login-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4);
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.5);
}

.login-btn:active {
    transform: translateY(0);
}

.login-footer {
    margin-top: 30px;
    text-align: center;
}

.login-footer p {
    font-size: 12px;
    color: var(--text-tertiary);
}

/* ========================================
   主应用布局
   ======================================== */

.main-app {
    display: flex;
    height: 100vh;
    background: var(--bg-secondary);
}

/* 侧边栏 */
.sidebar {
    width: 260px;
    background: var(--bg-dark);
    color: white;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    z-index: 100;
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
}

.logo i {
    font-size: 28px;
    color: var(--primary-light);
}

.sidebar-nav {
    flex: 1;
    padding: 20px 0;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

.nav-item i {
    font-size: 18px;
    width: 24px;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: white;
}

.nav-item.active {
    background: rgba(79, 70, 229, 0.2);
    color: white;
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--primary-light);
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.user-info .avatar i {
    font-size: 36px;
    color: var(--primary-light);
}

.user-info .info {
    flex: 1;
}

.user-info .name {
    font-size: 14px;
    font-weight: 600;
    color: white;
}

.user-info .role {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
}

.logout-btn {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    cursor: pointer;
    transition: var(--transition);
}

.logout-btn:hover {
    background: var(--danger-color);
}

/* 主内容区 */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.top-bar {
    height: 64px;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 0 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.breadcrumb i {
    color: var(--primary-color);
}

.top-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.action-btn {
    width: 40px;
    height: 40px;
    background: var(--bg-secondary);
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    position: relative;
    transition: var(--transition);
}

.action-btn:hover {
    background: var(--bg-tertiary);
    color: var(--primary-color);
}

.action-btn .badge {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 18px;
    height: 18px;
    background: var(--danger-color);
    color: white;
    border-radius: 50%;
    font-size: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.user-menu-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
}

.user-menu-btn:hover {
    background: var(--bg-tertiary);
}

.user-menu-btn i {
    font-size: 20px;
    color: var(--primary-color);
}

.content-container {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
}

/* ========================================
   通用组件样式
   ======================================== */

.card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-success {
    background: var(--success-color);
    color: white;
}

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

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

/* 加载动画 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    text-align: center;
    color: white;
}

.loading-spinner i {
    font-size: 48px;
    margin-bottom: 16px;
}

/* Toast 提示 */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 16px 24px;
    background: var(--bg-dark);
    color: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    transform: translateX(400px);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
    opacity: 0;
    z-index: 10000;
    max-width: 400px;
    word-wrap: break-word;
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast.success {
    background: var(--success-color);
}

.toast.error {
    background: var(--danger-color);
}

.toast.warning {
    background: var(--warning-color);
}

.toast.info {
    background: var(--info-color);
}

/* 基础布局网格样式 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 30px;
}

/* 统计卡片样式 */
.stat-card {
    background: white;
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.stat-card.primary .stat-icon {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.stat-card.success .stat-icon {
    background: linear-gradient(135deg, #10b981, #059669);
}

.stat-card.warning .stat-icon {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.stat-card.info .stat-icon {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.stat-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 28px;
    margin-bottom: 16px;
}

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: 8px;
}

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

.stat-change {
    font-size: 13px;
    color: var(--text-tertiary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.stat-change.positive {
    color: var(--success-color);
}

.stat-change.negative {
    color: var(--danger-color);
}

/* 小型统计卡片 */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.mini-stat-card {
    background: white;
    padding: 16px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
}

.mini-stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    flex-shrink: 0;
}

.mini-stat-icon.primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.mini-stat-icon.success {
    background: linear-gradient(135deg, #10b981, #059669);
}

.mini-stat-icon.warning {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.mini-stat-icon.info {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.mini-stat-content {
    flex: 1;
}

.mini-stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.mini-stat-label {
    font-size: 13px;
    color: var(--text-secondary);
}

/* 页面头部 */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
}

.header-left {
    flex: 1;
}

.page-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

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

.header-actions {
    display: flex;
    gap: 12px;
}

/* 筛选栏 */
.filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.search-box {
    position: relative;
    flex: 1;
    max-width: 400px;
}

.search-box i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-size: 16px;
}

.search-box input {
    width: 100%;
    padding: 10px 14px 10px 42px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    background: white;
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.filter-group {
    display: flex;
    gap: 10px;
    align-items: center;
}

.filter-select {
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    background: white;
    cursor: pointer;
    transition: var(--transition);
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* 表格样式 */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table thead {
    background: var(--bg-secondary);
}

.data-table th {
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.data-table tbody tr:hover {
    background: var(--bg-secondary);
}

.data-table td {
    padding: 14px 16px;
    color: var(--text-primary);
}

.table-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 24px;
}

.page-btn {
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    border: 1px solid var(--border-color);
    background: white;
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.page-btn:hover:not(:disabled) {
    background: var(--bg-secondary);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.page-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* 图表卡片 */
.chart-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.chart-select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 13px;
    background: white;
    cursor: pointer;
}

/* 导航分隔线 */
.nav-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: 16px 20px;
}

/* 响应式设计基础 */
@media (max-width: 768px) {
    .sidebar {
        width: 200px;
    }
    
    .login-box {
        width: 90%;
        padding: 32px;
    }
    
    .content-container {
        padding: 20px;
    }
}

/* 妯℃€佹鏍峰紡 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9998;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-box {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-medium {
    width: 90%;
    max-width: 600px;
}

.modal-large {
    width: 90%;
    max-width: 900px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--danger-color);
    color: white;
}

.modal-content {
    padding: 0;
}

/* 鍗＄墖鏍峰紡 */
.card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

/* 寰界珷鏍峰紡 */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.badge-primary {
    background: #dbeafe;
    color: #1e40af;
}

.badge-success {
    background: #d1fae5;
    color: #065f46;
}

.badge-warning {
    background: #fef3c7;
    color: #92400e;
}

.badge-danger {
    background: #fee2e2;
    color: #991b1b;
}

/* 鎸夐挳灏哄 */
.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

/* ========================================
   用户信息样式 - 通用组件
   ======================================== */
.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
    flex-shrink: 0;
}

.user-avatar-placeholder {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    font-size: 14px;
    border: 2px solid var(--border-color);
    flex-shrink: 0;
}

.user-name {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 120px;
}