body{
    margin:0;
    padding:0;
    background:#f3f6fb;
    font-family:Arial, sans-serif;
    color:#1e293b;
}

.main-wrapper{
    min-height:100vh;
    display:flex;
    flex-direction:column;
}

.topbar{
    width:100%;
    background:#0f172a;
    padding:15px 0;
    box-shadow:0 2px 10px rgba(0,0,0,0.1);
}

.topbar-flex{
    display:flex;
    justify-content:space-between;
    align-items:center;
}

.logo-block{
    display:flex;
    align-items:center;
    text-decoration:none;
}

.logo-img{
    width:52px;
    height:52px;
    object-fit:contain;
    margin-right:15px;
}

.logo-title{
    color:white;
    font-size:24px;
    font-weight:bold;
}

.logo-subtitle{
    color:#cbd5e1;
    font-size:13px;
}

.menu-block{
    display:flex;
    gap:10px;
}

.btn-top{
    background:#1e293b;
    color:white;
    padding:10px 18px;
    border-radius:6px;
    text-decoration:none;
    transition:0.2s;
}

.btn-top:hover{
    background:#334155;
    transform:translateY(-2px);
}

.btn-top-blue{
    background:#2563eb;
}

.btn-top-blue:hover{
    background:#1d4ed8;
}

.content-area{
    flex:1;
    width:100%;
    padding:50px 20px;
}

.main-card{
    max-width:850px;
    margin:0 auto;
    background:white;
    border-radius:14px;
    padding:40px;
    box-shadow:0 5px 20px rgba(0,0,0,0.08);
}

.page-title{
    font-size:34px;
    margin-bottom:10px;
    font-weight:bold;
}

.page-subtitle{
    color:#64748b;
    margin-bottom:35px;
}

.form-control{
    height:52px;
    border-radius:8px;
}

.btn-main{
    height:52px;
    border-radius:8px;
    font-weight:bold;
    transition:0.2s;
}

.btn-main:hover{
    transform:translateY(-2px);
}

.result-box{
    margin-top:30px;
    background:#f8fafc;
    border-radius:10px;
    padding:25px;
}

.result-item{
    margin-bottom:12px;
}

.status-online{
    color:#16a34a;
    font-weight:bold;
}

.status-offline{
    color:#dc2626;
    font-weight:bold;
}

.auth-card{
    max-width:500px;
}

.error-box{
    background:#fee2e2;
    color:#991b1b;
    padding:14px;
    border-radius:8px;
    margin-bottom:20px;
}

.footer{
    background:#0f172a;
    padding:25px 0;
    text-align:center;
}

.footer-title{
    color:white;
    font-size:15px;
}

.footer-text{
    color:#94a3b8;
    font-size:13px;
    margin-top:5px;
}

.table{
    margin-top:25px;
}

.table th{
    background:#e2e8f0;
}

.empty-text{
    color:#64748b;
    text-align:center;
    margin-top:20px;
}