/* 自定义样式 */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
}

body {
    background-color: #f5f6fa;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* 导航栏样式 */
.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

/* 卡片样式 */
.card {
    border: none;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    color: white;
    border-radius: 10px 10px 0 0 !important;
    border: none;
}

/* 上传区域样式 */
.upload-zone {
    border: 3px dashed #dee2e6;
    border-radius: 10px;
    padding: 3rem 2rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-zone:hover {
    border-color: var(--primary-color);
    background-color: rgba(0, 123, 255, 0.05);
}

.upload-zone.dragover {
    border-color: var(--success-color);
    background-color: rgba(40, 167, 69, 0.1);
}

/* 图片容器样式 */
.image-container {
    position: relative;
    border: 2px solid #dee2e6;
    border-radius: 8px;
    overflow: hidden;
    background-color: #f8f9fa;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-container img {
    max-width: 100%;
    max-height: 300px;
    object-fit: contain;
}

.placeholder-image {
    height: 200px;
    background: linear-gradient(45deg, #f8f9fa 25%, transparent 25%), 
                linear-gradient(-45deg, #f8f9fa 25%, transparent 25%), 
                linear-gradient(45deg, transparent 75%, #f8f9fa 75%), 
                linear-gradient(-45deg, transparent 75%, #f8f9fa 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

/* 图片信息样式 */
.image-info {
    background-color: #f8f9fa;
    padding: 0.5rem;
    border-radius: 5px;
    font-size: 0.875rem;
}

.image-info .info-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.25rem;
}

.image-info .info-item:last-child {
    margin-bottom: 0;
}

/* 功能选项卡样式 */
.nav-pills .nav-link {
    border-radius: 8px;
    transition: all 0.3s ease;
}

.nav-pills .nav-link:hover {
    background-color: rgba(0, 123, 255, 0.1);
}

.nav-pills .nav-link.active {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
}

/* 表单控件样式 */
.form-control, .form-select {
    border-radius: 8px;
    border: 2px solid #e9ecef;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

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

/* 按钮样式 */
.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0056b3, #004085);
    transform: translateY(-1px);
}

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color), #1e7e34);
}

.btn-success:hover {
    background: linear-gradient(135deg, #1e7e34, #155724);
    transform: translateY(-1px);
}

/* 按钮组样式 */
.btn-group .btn {
    flex: 1;
}

/* 加载动画 */
.spinner-border {
    width: 3rem;
    height: 3rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .upload-zone {
        padding: 2rem 1rem;
    }
    
    .upload-zone h4 {
        font-size: 1.2rem;
    }
    
    .image-container {
        min-height: 150px;
    }
    
    .image-container img {
        max-height: 200px;
    }
}

@media (max-width: 576px) {
    .container-fluid {
        padding-left: 10px;
        padding-right: 10px;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .upload-zone {
        padding: 1.5rem 1rem;
    }
    
    .btn-group .btn {
        font-size: 0.875rem;
        padding: 0.375rem 0.5rem;
    }
}

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

/* 进度条样式 */
.progress {
    height: 8px;
    border-radius: 4px;
    background-color: #e9ecef;
}

.progress-bar {
    background: linear-gradient(90deg, var(--primary-color), var(--success-color));
    border-radius: 4px;
}

/* 徽章样式 */
.badge {
    border-radius: 6px;
}

/* 模态框样式 */
.modal-content {
    border: none;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.modal-header {
    border-bottom: 2px solid #e9ecef;
    border-radius: 10px 10px 0 0;
}

.modal-footer {
    border-top: 2px solid #e9ecef;
    border-radius: 0 0 10px 10px;
}

/* 页脚样式 */
footer {
    margin-top: auto;
}

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

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

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

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

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.pulse {
    animation: pulse 2s infinite;
}

/* 成功/错误提示样式 */
.alert {
    border: none;
    border-radius: 8px;
    font-weight: 500;
}

.alert-success {
    background: linear-gradient(135deg, rgba(40, 167, 69, 0.1), rgba(40, 167, 69, 0.05));
    color: #155724;
    border-left: 4px solid var(--success-color);
}

.alert-danger {
    background: linear-gradient(135deg, rgba(220, 53, 69, 0.1), rgba(220, 53, 69, 0.05));
    color: #721c24;
    border-left: 4px solid var(--danger-color);
}

/* 自定义弹窗样式 */
.custom-alert-modal {
    border: none;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.custom-alert-modal .modal-header {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    color: white;
    padding: 1.5rem 1.5rem 0.5rem;
    position: relative;
}

.custom-alert-modal .alert-icon-container {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.custom-alert-modal .alert-icon-container i {
    font-size: 1.8rem;
    color: var(--primary-color);
}

.custom-alert-modal.success .modal-header {
    background: linear-gradient(135deg, var(--success-color), #1e7e34);
}

.custom-alert-modal.success .alert-icon-container i {
    color: var(--success-color);
}

.custom-alert-modal.danger .modal-header {
    background: linear-gradient(135deg, var(--danger-color), #bd2130);
}

.custom-alert-modal.danger .alert-icon-container i {
    color: var(--danger-color);
}

.custom-alert-modal.warning .modal-header {
    background: linear-gradient(135deg, var(--warning-color), #e0a800);
}

.custom-alert-modal.warning .alert-icon-container i {
    color: var(--warning-color);
}

.custom-alert-modal .modal-body {
    padding: 2rem 1.5rem 1rem;
    background: white;
}

.custom-alert-modal .modal-title {
    font-weight: 600;
    color: var(--dark-color);
    margin-top: 1rem;
}

.custom-alert-modal .modal-footer {
    background: #f8f9fa;
    padding: 1rem 1.5rem 1.5rem;
}

.custom-alert-modal .btn-close {
    color: white;
    opacity: 0.8;
    font-size: 1.2rem;
}

.custom-alert-modal .btn-close:hover {
    opacity: 1;
}

/* 弹窗动画效果 */
.custom-alert-modal.show {
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}