/* login-tech.css */

/* 定义主色调变量 */
:root {
    --primary-color: #1ab394;
    --primary-glow: rgba(26, 179, 148, 0.5);
    --bg-dark: #0f1319;
    --text-color: #e0e0e0;
}

body.gray-bg {
    background: var(--bg-dark);
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: var(--text-color);
    overflow: hidden; /* 防止滚动条出现 */
}

/* 动态背景 Canvas */
#canvas-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

/* 登录框主体 - 毛玻璃特效 */
.middle-box {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px); /* 毛玻璃模糊 */
    -webkit-backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
    margin: 50px auto auto auto; /* 调整垂直位置 */
    max-width: 400px;
    width: 100%;
    float: none;
    /*    display: inline-block;*/
    position: relative;
    z-index: 10;
    top:50px
}

/* 标题样式 */
.logo-name {
    color: var(--primary-color);
    font-size: 60px;
    font-weight: 800;
    letter-spacing: 2px;
    margin-bottom: 10px;
    text-shadow: 0 0 10px var(--primary-glow);
}

.middle-box h3 {
    color: #fff;
    font-weight: 300;
    margin-bottom: 30px;
}

/* 输入框重写 - 科技感下划线风格 */
.form-control {
    background-color: transparent !important;
    border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 0;
    color: #fff !important;
    box-shadow: none;
    padding-left: 0;
    transition: all 0.3s ease;
    height: 40px;
}

    .form-control:focus {
        border-bottom: 1px solid var(--primary-color);
        box-shadow: 0 1px 0 0 var(--primary-glow);
        color: #fff;
    }

/* 针对浏览器自动填充背景色的 Hack */
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
input:-webkit-autofill:active {
    -webkit-box-shadow: 0 0 0 30px #151a23 inset !important;
    -webkit-text-fill-color: white !important;
    transition: background-color 5000s ease-in-out 0s;
}

.form-control::-webkit-input-placeholder {
    color: rgba(255,255,255,0.4);
}

.form-control:-moz-placeholder {
    color: rgba(255,255,255,0.4);
}

/* 验证码输入框调整 */
.input-group-addon {
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

/* 按钮样式 - 霓虹光效 */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
    font-weight: bold;
    border-radius: 25px; /* 圆角按钮 */
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--primary-glow);
    margin-top: 20px;
}

    .btn-primary:hover, .btn-primary:active, .btn-primary:focus {
        background-color: #15947a !important;
        border-color: #15947a !important;
        box-shadow: 0 6px 20px rgba(26, 179, 148, 0.8);
        transform: translateY(-2px);
    }

/* 底部文字 */
.text-muted {
    color: rgba(255, 255, 255, 0.5) !important;
}