/* AI邮件简报系统 - 现代化样式 */

/* 基础样式 */
:root {
    --primary-color: #4f46e5;
    --primary-light: #8b5cf6;
    --primary-dark: #3730a3;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #3b82f6;
    --light-color: #f8fafc;
    --dark-color: #1e293b;
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --gradient-danger: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* 全局样式 */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: #f1f5f9;
    color: #334155;
    line-height: 1.6;
}

/* 导航栏样式 */
.navbar {
    background: var(--gradient-primary) !important;
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: white !important;
}

.navbar-nav .nav-link {
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9) !important;
    transition: all 0.3s ease;
    border-radius: 0.5rem;
    margin: 0 0.25rem;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: white !important;
    background-color: rgba(255, 255, 255, 0.15);
}

/* 主内容区域 */
.main-content {
    margin-top: 80px;
    margin-bottom: 2rem;
    min-height: calc(100vh - 200px);
}

/* 页面标题样式 */
.page-header {
    margin-bottom: 2rem;
}

.display-6 {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 卡片样式增强 */
.card {
    border: none;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    overflow: hidden;
}

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

.card-header {
    border: none;
    font-weight: 600;
}

.bg-gradient-primary {
    background: var(--gradient-primary);
}

/* 统计卡片样式 */
.stat-card {
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.stat-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 简报卡片样式 */
.digest-card {
    border-radius: 1.5rem;
    overflow: hidden;
}

.digest-card .card-header {
    background: var(--gradient-primary);
    padding: 1.5rem;
}

.digest-card .card-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

/* 邮件项目样式 */
.email-item {
    transition: all 0.3s ease;
    border-radius: 1rem;
}

.email-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px);
}

.email-subject {
    font-weight: 600;
    color: var(--dark-color);
    line-height: 1.4;
}

.email-summary {
    color: var(--secondary-color);
    line-height: 1.5;
}

.ai-summary {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-left: 4px solid var(--info-color);
}

/* 分类样式 */
.category-section {
    margin-bottom: 2rem;
}

.category-title {
    font-weight: 600;
    color: var(--dark-color);
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #e2e8f0;
    margin-bottom: 1rem;
}

/* 按钮增强 */
.btn {
    font-weight: 500;
    border-radius: 0.75rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

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

.btn-primary {
    background: var(--gradient-primary);
    border: none;
}

.btn-success {
    background: var(--gradient-success);
    border: none;
}

.btn-warning {
    background: var(--gradient-warning);
    border: none;
}

.btn-danger {
    background: var(--gradient-danger);
    border: none;
}

/* 表单样式增强 */
.form-control,
.form-select {
    border-radius: 0.75rem;
    border: 2px solid #e2e8f0;
    transition: all 0.3s ease;
    font-weight: 500;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(79, 70, 229, 0.15);
}

.input-group-text {
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 0.75rem 0 0 0.75rem;
    color: var(--secondary-color);
}

/* 徽章样式 */
.badge {
    font-weight: 500;
    padding: 0.5em 0.75em;
    border-radius: 0.5rem;
}

/* 提示框样式 */
.alert {
    border: none;
    border-radius: 1rem;
    font-weight: 500;
}

.alert-info {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    color: #0369a1;
}

.alert-success {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    color: #166534;
}

.alert-warning {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    color: #92400e;
}

.alert-danger {
    background: linear-gradient(135deg, #fef2f2 0%, #fecaca 100%);
    color: #991b1b;
}

/* 加载覆盖层 */
.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;
    backdrop-filter: blur(5px);
}

.spinner-container {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    box-shadow: var(--shadow-xl);
}

/* 空状态样式 */
.empty-state,
.no-digest-card,
.empty-accounts {
    padding: 3rem 2rem;
}

.empty-state i,
.no-digest-card i,
.empty-accounts i {
    opacity: 0.6;
}

/* 分页样式 */
.pagination .page-link {
    border-radius: 0.5rem;
    border: none;
    margin: 0 0.125rem;
    color: var(--primary-color);
    font-weight: 500;
}

.pagination .page-item.active .page-link {
    background: var(--gradient-primary);
    border: none;
}

/* 表格样式 */
.table {
    border-radius: 1rem;
    overflow: hidden;
}

.table thead th {
    background: #f8fafc;
    border: none;
    font-weight: 600;
    color: var(--dark-color);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
}

.table tbody td {
    border-color: #e2e8f0;
    vertical-align: middle;
}

/* 状态指示器 */
.status-item {
    padding: 1rem;
}

.status-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.status-title {
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 0.25rem;
}

.status-value {
    font-weight: 700;
}

/* 页脚样式 */
.footer {
    border-top: 1px solid #e2e8f0;
    background: white;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .main-content {
        margin-top: 70px;
        padding: 0 1rem;
    }
    
    .display-6 {
        font-size: 2rem;
    }
    
    .stat-card {
        margin-bottom: 1rem;
    }
    
    .email-item .row {
        flex-direction: column;
    }
    
    .email-sidebar {
        margin-top: 1rem;
        text-align: left !important;
    }
    
    .btn-group-vertical {
        flex-direction: row;
    }
    
    .table-responsive {
        font-size: 0.875rem;
    }
}

@media (max-width: 576px) {
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .digest-card .card-header {
        padding: 1rem;
    }
    
    .btn-group .btn {
        padding: 0.375rem 0.5rem;
        font-size: 0.75rem;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.card,
.email-item,
.stat-card {
    animation: fadeIn 0.6s ease-out;
}

.email-sidebar {
    animation: slideInRight 0.6s ease-out;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* 选择文本样式 */
::selection {
    background: rgba(79, 70, 229, 0.2);
    color: var(--dark-color);
}

/* 焦点样式 */
.btn:focus,
.form-control:focus,
.form-select:focus {
    outline: none;
    box-shadow: 0 0 0 0.25rem rgba(79, 70, 229, 0.25);
}

/* 过渡动画 */
* {
    transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    :root {
        --light-color: #1e293b;
        --dark-color: #f1f5f9;
    }
    
    body {
        background-color: #0f172a;
        color: #e2e8f0;
    }
    
    .card {
        background-color: #1e293b;
        color: #e2e8f0;
    }
    
    .table {
        --bs-table-bg: #1e293b;
        --bs-table-color: #e2e8f0;
    }
    
    .form-control,
    .form-select {
        background-color: #334155;
        border-color: #475569;
        color: #e2e8f0;
    }
}

/* =========================================================
   紧凑模式覆盖（全站缩小2-4号字号与控件尺寸）
   说明：不改动HTML结构，通过覆盖降低字体与间距
   生效范围：导航栏 / 卡片 / 表单 / 按钮 / 表格 / 分页 / 模态框
   ========================================================= */

/* 全局根字号下调，约从16px降到14px（≈-12.5%） */
html {
    font-size: 14px;
}

/* 标题与大号文本适度下调 */
.display-6 {
    font-size: 2.125rem; /* 原本未显式设置，约合34px，现约30px */
}

/* 导航栏更紧凑 */
.navbar {
    padding-top: 0.35rem;
    padding-bottom: 0.35rem;
}
.navbar-brand {
    font-size: 1.25rem; /* 由1.5rem下调 */
}
.navbar-nav .nav-link {
    font-size: 0.9rem;
    padding: 0.25rem 0.5rem;
    border-radius: 0.375rem;
}

/* 卡片内边距下调 */
.card-header {
    padding: 0.75rem 1rem;
}
.card-body {
    padding: 0.9rem 1rem;
}

/* 统计组件缩小 */
.stat-icon {
    width: 48px;
    height: 48px;
    font-size: 1.25rem;
}
.stat-number {
    font-size: 2.1rem; /* 由2.5rem下调 */
}

/* 状态组件缩小 */
.status-icon {
    width: 40px;
    height: 40px;
    font-size: 1.1rem;
}

/* 按钮更紧凑 */
.btn {
    font-size: 0.9rem;
    padding: 0.4rem 0.75rem;
    border-radius: 0.5rem;
}

/* 表单控件更紧凑 */
.form-control,
.form-select {
    font-size: 0.9rem;
    padding: 0.4rem 0.6rem;
    border-radius: 0.5rem;
}
.input-group-text {
    padding: 0.4rem 0.6rem;
    border-radius: 0.5rem 0 0 0.5rem;
}

/* 徽章更紧凑 */
.badge {
    font-size: 0.75rem;
    padding: 0.35em 0.6em;
}

/* 表格字体与间距下调 */
.table {
    font-size: 0.9rem;
}
.table thead th {
    font-size: 0.7rem; /* 由0.75rem下调 */
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}
.table tbody td {
    padding-top: 0.55rem;
    padding-bottom: 0.55rem;
}

/* 分页更紧凑 */
.pagination .page-link {
    padding: 0.35rem 0.6rem;
    font-size: 0.9rem;
}

/* 模态框更紧凑：标题、内容与底部区域 */
.modal-title {
    font-size: 1rem;
}
.modal-header,
.modal-body,
.modal-footer {
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
}

/* 表单帮助文本与小字说明更紧凑 */
.form-text,
small {
    font-size: 0.8rem;
}

/* 响应式下依然保持紧凑但不过度缩小 */
@media (max-width: 576px) {
    html { font-size: 13px; }
    .navbar-brand { font-size: 1.1rem; }
    .btn { font-size: 0.85rem; padding: 0.35rem 0.6rem; }
}

/* =========================================================
   个人资料页面专用样式
   ========================================================= */

/* 紧凑统计样式 */
.stat-compact {
    padding: 0.5rem 0;
}

.stat-compact .stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
}

.stat-compact .stat-label {
    font-size: 0.75rem;
    line-height: 1;
    margin-top: 0.25rem;
}

/* 详细信息项样式 */
.detail-item {
    padding: 0.5rem 0;
    border-bottom: 1px solid #f1f5f9;
}

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

/* 安全设置项样式 */
.security-item {
    padding: 0.75rem;
    background: #f8fafc;
    border-radius: 0.5rem;
    border: 1px solid #e2e8f0;
}

/* 活动统计行样式 */
.stat-row {
    padding: 0.375rem 0;
    border-bottom: 1px solid #f1f5f9;
}

.stat-row:last-child {
    border-bottom: none;
}

/* 用户概览卡片样式 */
.avatar-circle {
    flex-shrink: 0;
}

/* 响应式优化 */
@media (max-width: 768px) {
    /* 移动端统计数据垂直排列 */
    .stat-compact {
        margin-bottom: 1rem;
    }
    
    /* 移动端用户信息垂直排列 */
    .col-md-4, .col-md-6, .col-md-2 {
        margin-bottom: 1rem;
    }
    
    .col-md-2 {
        text-align: center !important;
    }
    
    /* 移动端三栏变单栏 */
    .col-lg-4 {
        margin-bottom: 1rem;
    }
}

@media (max-width: 576px) {
    /* 小屏幕下进一步优化 */
    .stat-compact .stat-number {
        font-size: 1.25rem;
    }
    
    .avatar-circle {
        width: 50px !important;
        height: 50px !important;
    }
    
    .security-item {
        padding: 0.5rem;
        margin-bottom: 0.75rem;
    }
}