// 添加基本样式
body {
    font-family: Arial, sans-serif;
}

/* 容器样式 */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
    text-align: center;
}

/* 画布区域样式 */
.signature-pad {
    border: 2px dashed #666;
    margin: 30px 0;
    padding: 20px;
    display: inline-block;
    background-color: #f9f9f9;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    width: 840px;
    height: 440px;
}

/* 防止页面滚动 */
body {
    overflow: hidden;
}

/* 控制按钮容器 */
.controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-top: 15px;
}

/* 颜色选择器 */
.color-picker {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background-color: #f0f0f0;
    border-radius: 5px;
}

#colorSelect {
    padding: 5px;
    font-size: 14px;
    border: 1px solid #ccc;
    border-radius: 3px;
}

/* 按钮样式 */
button {
    margin: 10px;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    border: none;
    border-radius: 5px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

#saveBtn {
    background-color: #4CAF50;
    color: white;
}

#clearBtn {
    background-color: #f44336;
    color: white;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

/* 状态信息 */
.status {
    margin-top: 15px;
    font-style: italic;
    color: #666;
    transition: all 0.3s ease;
}

.status.success {
    color: #4CAF50;
    font-weight: bold;
}

.status.info {
    color: #2196F3;
    font-weight: bold;
}