body{
    margin:0;
    padding:0;
    font-family:Arial, Helvetica, sans-serif;
    background:#eef4fb;
    color:#123;
}

a{
    color:#0b4ea2;
    text-decoration:none;
}

a:hover{
    text-decoration:underline;
}

.layout{
    display:flex;
    min-height:100vh;
}

.sidebar{
    width:280px;
    background:#ffffff;
    padding:20px;
    border-right:1px solid #d7e3f3;
}

.content{
    flex:1;
    padding:25px;
}

.doc-link{
    margin-bottom:10px;
    padding:8px;
    border-bottom:1px solid #eef2f7;
}

.login-box,
.admin-box{
    max-width:700px;
    margin:40px auto;
    background:#fff;
    padding:30px;
    border-radius:10px;
    box-shadow:0 5px 18px rgba(0,0,0,0.08);
}

input,
select,
button{
    width:100%;
    padding:12px;
    margin:8px 0;
    border:1px solid #ccd8ea;
    border-radius:6px;
    box-sizing:border-box;
}

button{
    background:#0b4ea2;
    color:#fff;
    border:none;
    cursor:pointer;
}

button:hover{
    background:#083a79;
}

.error{
    background:#ffdede;
    color:#900;
    padding:10px;
    border-radius:6px;
    margin-bottom:15px;
}

.success{
    background:#dff7df;
    color:#176117;
    padding:12px;
    border-radius:6px;
    margin-top:15px;
}

.alert{
    background:#e8f1ff;
    color:#124;
    padding:12px;
    border-radius:6px;
    margin-bottom:15px;
}

table{
    width:100%;
    border-collapse:collapse;
    background:#fff;
}

th, td{
    padding:10px;
    border:1px solid #dfe7f3;
    text-align:left;
}

iframe{
    border:1px solid #dfe7f3;
    border-radius:8px;
    background:#fff;
}

pre{
    background:#f7f9fc;
    padding:10px;
    overflow:auto;
}