/* 全局样式 */
body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: #f8f9fa;
}

main {
    flex: 1;
    padding: 2rem 0;
}

/* 登录页面样式 */
.login-container {
    max-width: 400px;
    margin: 0 auto;
    padding: 2rem;
}

.login-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo i {
    font-size: 3rem;
    color: #0d6efd;
}

/* 图片上传区域样式 */
.dropzone {
    border: 2px dashed #dee2e6;
    border-radius: 0.5rem;
    background: #fff;
    min-height: 200px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dropzone:hover {
    border-color: #0d6efd;
    background: #f8f9fa;
}

.dz-message {
    margin: 2rem 0;
}

.dz-message i {
    color: #0d6efd;
}

/* 图片网格样式 */
.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.image-card {
    position: relative;
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.image-card:hover {
    transform: translateY(-5px);
}

.image-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.image-card .overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 1rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.image-card:hover .overlay {
    opacity: 1;
}

.image-info {
    color: #fff;
    font-size: 0.875rem;
}

/* 表单控件样式 */
.form-control:focus {
    border-color: #0d6efd;
    box-shadow: 0 0 0 0.25rem rgba(13,110,253,0.25);
}

.btn-primary {
    background-color: #0d6efd;
    border-color: #0d6efd;
}

.btn-primary:hover {
    background-color: #0b5ed7;
    border-color: #0a58ca;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 1.5rem;
    height: 1.5rem;
    border: 3px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 响应式调整 */
@media (max-width: 768px) {
    .image-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
    
    .image-card img {
        height: 150px;
    }
}

/* 颜色标签样式 */
.color-badge {
    display: inline-block;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    margin-right: 8px;
    vertical-align: middle;
    border: 1px solid #ddd;
}

/* 表格样式 */
.table th {
    background-color: #f8f9fa;
    font-weight: 600;
}

.table-hover tbody tr:hover {
    background-color: rgba(13,110,253,0.05);
}

/* 卡片样式 */
.card {
    border: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 1.5rem;
}

.card-header {
    background-color: #fff;
    border-bottom: 1px solid #dee2e6;
    padding: 1rem;
}

.card-body {
    padding: 1.5rem;
}

/* 按钮组样式 */
.btn-group {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.btn-group .btn {
    border: none;
}

.btn-group .btn:not(:last-child) {
    border-right: 1px solid rgba(0,0,0,0.1);
}

/* 导航栏样式 */
.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.navbar-brand {
    font-weight: 600;
}

/* 页脚样式 */
footer {
    background-color: #fff;
    padding: 1rem 0;
    text-align: center;
    border-top: 1px solid #dee2e6;
}

/* 提示框样式 */
.alert {
    border: none;
    border-radius: 0.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.alert-success {
    background-color: #d1e7dd;
    color: #0f5132;
}

.alert-danger {
    background-color: #f8d7da;
    color: #842029;
}

/* 进度条样式 */
.progress {
    height: 0.5rem;
    border-radius: 1rem;
    background-color: #e9ecef;
}

.progress-bar {
    background-color: #0d6efd;
    border-radius: 1rem;
}

/* 表单验证样式 */
.was-validated .form-control:valid {
    border-color: #198754;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%23198754' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e");
}

.was-validated .form-control:invalid {
    border-color: #dc3545;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23dc3545'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23dc3545' stroke='none'/%3e%3c/svg%3e");
}