/*
 * =============================================================================
 * 后台通用样式 (style.css)
 * =============================================================================
 */

/* --- 基础表单与按钮样式 (供登录页、安装页等使用) --- */
.container {
    background: #fff;
    padding: 2rem 3rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

.form-group {
    margin-bottom: 1rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
    transition: border-color 0.2s;
}

input[type="text"]:focus,
input[type="password"]:focus {
    border-color: #3498db;
    outline: none;
}

.btn {
    display: block;
    width: 100%;
    padding: 0.75rem;
    background-color: #3498db;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    transition: background-color 0.2s;
}

.btn:hover {
    background-color: #2980b9;
}

.messages {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
    text-align: center;
}

.errors {
    background-color: #fdeded;
    border: 1px solid #fbbdbd;
    color: #9b2c2c;
}

.success {
    background-color: #e6fffa;
    border: 1px solid #a8e6cf;
    color: #2d6a4f;
}


/* --- 后台主页前端预览样式 (最终修正版) --- */

/* dashboard.php 页面独有的 .content-area 样式 */
.content-area {
    /* 关键改动: 让其在父容器(.container)中充满剩余空间 */
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.dashboard-preview-container {
    width: 100%;
    flex-grow: 1;
    /* 关键改动: 自动伸展以填充 .content-area 的空间 */
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    display: flex;
    /* 使内部的iframe也能撑满 */
}

.dashboard-preview-iframe {
    width: 100%;
    height: 100%;
    border: none;
    /* 移除iframe默认的边框 */
}
/* ---  拖拽排序把手样式 --- */
.drag-handle {
    cursor: grab; /* 设置鼠标样式为“抓手” */
    text-align: center;
    color: #999;
    font-size: 1.2rem;
}
.drag-handle:active {
    cursor: grabbing; /* 拖拽激活时变为“握紧”样式 */
}