/* PDF处理工具自定义样式 */

:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --border-radius: 0.375rem;
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --transition: all 0.15s ease-in-out;
}

/* 全局样式 */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    line-height: 1.6;
}

.container-fluid {
    padding: 0;
}

/* 导航栏样式 */
.navbar-brand {
    font-weight: 700;
    font-size: 1.8rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.navbar {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.8);
    transform: translateY(-1px);
}

/* 卡片样式增强 */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    margin-bottom: 1.5rem;
}

.card:hover {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.card-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-bottom: none;
    color: white;
    font-weight: 600;
}

.card-header h5, .card-header h6 {
    margin: 0;
}

.card-body {
    padding: 2rem;
}

/* 选项卡样式 */
.nav-tabs {
    border-bottom: 2px solid #e9ecef;
    margin-bottom: 0;
}

.nav-tabs .nav-link {
    border: none;
    color: var(--secondary-color);
    font-weight: 500;
    padding: 1rem 1.5rem;
    transition: var(--transition);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.nav-tabs .nav-link:hover {
    border-color: transparent;
    color: #764ba2;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
}

.nav-tabs .nav-link.active {
    color: #764ba2;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.15) 100%);
    border-color: #764ba2 #764ba2 white;
    border-width: 2px 2px 0 2px;
    font-weight: 600;
}

.nav-tabs .nav-link i {
    margin-right: 0.5rem;
}

/* 表单样式增强 */
.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.75rem;
}

.form-control, .form-select {
    border: 2px solid #e9ecef;
    border-radius: var(--border-radius);
    padding: 0.75rem 1rem;
    transition: var(--transition);
    font-size: 0.95rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.form-control[type="file"] {
    padding: 0.5rem 1rem;
}

.form-range {
    margin: 1rem 0;
}

.form-text {
    color: var(--secondary-color);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

/* 按钮样式增强 */
.btn {
    border-radius: var(--border-radius);
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    transition: var(--transition);
    border-width: 2px;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 0.25rem 0.5rem rgba(0, 0, 0, 0.15);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
}

.btn-success {
    background: linear-gradient(135deg, #56ab2f 0%, #a8e6cf 100%);
    border: none;
}

.btn-success:hover {
    background: linear-gradient(135deg, #4e9f2a 0%, #96d9bb 100%);
}

.btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

/* 文件列表样式 */
.list-group-item {
    border: none;
    border-left: 4px solid var(--primary-color);
    margin-bottom: 0.5rem;
    border-radius: var(--border-radius);
    background-color: #f8f9fa;
    transition: var(--transition);
}

.list-group-item:hover {
    background-color: #e9ecef;
    transform: translateX(5px);
}

.list-group-item i.bi-file-earmark-pdf {
    font-size: 1.2rem;
}

/* 警告和提示样式 */
.alert {
    border: none;
    border-radius: var(--border-radius);
    border-left: 4px solid;
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.alert-success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    border-left-color: var(--success-color);
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    border-left-color: var(--danger-color);
}

.alert-warning {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    border-left-color: var(--warning-color);
}

.alert-info {
    background: linear-gradient(135deg, #d1ecf1 0%, #bee5eb 100%);
    border-left-color: var(--info-color);
}

.alert i {
    font-size: 1.1rem;
}

/* 自动消失提示的进度条 */
.auto-dismiss-alert::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    background: rgba(0, 0, 0, 0.2);
    animation: progressBar 3s linear forwards;
}

@keyframes progressBar {
    from {
        width: 100%;
    }
    to {
        width: 0%;
    }
}

/* 提示框淡入动画增强 */
.alert.fade.show {
    animation: slideInDown 0.3s ease-out;
}

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

/* 加载动画样式 */
.spinner-border {
    width: 2rem;
    height: 2rem;
}

#loadingArea .card-body {
    padding: 3rem 2rem;
}

#loadingText {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--primary-color);
}

/* 结果区域样式 */
#resultArea {
    animation: slideInUp 0.5s ease-out;
}

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

/* 拖拽上传样式 */
.drag-over {
    border: 2px dashed var(--primary-color) !important;
    background-color: rgba(13, 110, 253, 0.05) !important;
}

.card-body {
    position: relative;
}

.card-body.drag-over::before {
    content: '拖拽文件到此处';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.2rem;
    z-index: 10;
    pointer-events: none;
}

/* 表格样式 */
.table {
    margin-bottom: 0;
}

.table td {
    border: none;
    padding: 0.75rem 0;
    vertical-align: middle;
}

.table td:first-child {
    width: 30%;
    color: var(--secondary-color);
}

/* PDF信息显示样式 */
.info-item {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: var(--border-radius);
    border-left: 4px solid #667eea;
    transition: var(--transition);
}

.info-item:hover {
    transform: translateX(3px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.info-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: #667eea;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
}

.info-label i {
    color: #764ba2;
}

.info-value {
    font-size: 1rem;
    color: var(--dark-color);
    word-break: break-word;
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .card-body {
        padding: 1.5rem 1rem;
    }
    
    .nav-tabs .nav-link {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
    
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .navbar-brand {
        font-size: 1.3rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 0.5rem;
    }
    
    .card-body {
        padding: 1rem 0.75rem;
    }
    
    .nav-tabs .nav-link {
        padding: 0.5rem 0.75rem;
        font-size: 0.85rem;
    }
    
    .nav-tabs .nav-link i {
        display: none;
    }
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* 动画效果 */
.fade-in {
    animation: fadeIn 0.3s ease-in;
}

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

.slide-up {
    animation: slideUp 0.3s ease-out;
}

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

/* 工具提示样式 */
.tooltip {
    font-size: 0.875rem;
}

.tooltip-inner {
    background-color: var(--dark-color);
    border-radius: var(--border-radius);
}

/* 进度条样式 */
.progress {
    height: 0.5rem;
    border-radius: var(--border-radius);
    background-color: #e9ecef;
}

.progress-bar {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--info-color) 100%);
    border-radius: var(--border-radius);
}

/* 特殊效果 */
.glass-effect {
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.shadow-lg {
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.175) !important;
}

/* PDF图标特殊样式 */
.bi-file-earmark-pdf {
    color: #dc3545 !important;
}

.bi-files {
    color: #0d6efd !important;
}

.bi-droplet {
    color: #0dcaf0 !important;
}

.bi-scissors {
    color: #fd7e14 !important;
}

.bi-distribute-vertical {
    color: #6f42c1 !important;
}

.bi-info-circle {
    color: #20c997 !important;
}