/**
 * 上传页面样式文件
 * 定义上传表单的所有样式和交互效果
 * @file upload.css
 */

/* ========================================
   表单容器样式
   ======================================== */

.upload-form {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
    animation: fadeInUp 0.5s ease-out;
}

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

/* ========================================
   表单组件样式
   ======================================== */

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    color: #1e293b;
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="date"],
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #ec4899;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 心情选择器 */
.mood-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.mood-btn {
    font-size: 2rem;
    padding: 15px;
    background: #f1f5f9;
    border: 3px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mood-btn:hover {
    background: #e2e8f0;
}

.mood-btn.active {
    background: #ec4899;
    border-color: #ec4899;
    transform: scale(1.1);
    box-shadow: 0 5px 15px rgba(236, 72, 153, 0.3);
}

/* 文件上传 */
.form-group input[type="file"] {
    padding: 10px;
    border: 2px dashed #e2e8f0;
    border-radius: 10px;
    cursor: pointer;
}

.image-preview {
    margin-top: 15px;
}

.image-preview img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 提交按钮 */
.submit-btn {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #ec4899 0%, #a855f7 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(236, 72, 153, 0.4);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 消息提示 */
.message {
    margin-top: 20px;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    font-weight: 600;
    display: none;
}

.message.success {
    background: #d1fae5;
    color: #065f46;
    display: block;
}

.message.error {
    background: #fee2e2;
    color: #991b1b;
    display: block;
}

/* 返回按钮 */
.back-btn {
    display: inline-block;
    padding: 12px 24px;
    background: #f1f5f9;
    color: #475569;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 600;
    transition: background 0.3s ease;
}

.back-btn:hover {
    background: #e2e8f0;
}

@media (max-width: 768px) {
    .upload-form {
        padding: 25px;
        border-radius: 15px;
    }
    
    .form-group label {
        font-size: 1rem;
    }
    
    .form-group input[type="text"],
    .form-group input[type="password"],
    .form-group input[type="date"],
    .form-group textarea {
        padding: 12px;
    }
    
    .mood-btn {
        font-size: 1.5rem;
        padding: 10px;
    }
    
    .submit-btn {
        padding: 15px;
        font-size: 1.1rem;
    }
}