:root{--navy:#002D62;--yellow:#FFD100;--bg:#07111f;--sidebar:#081524;--panel:#0d1b2d;--panel2:#102238;--line:#1d3550;--text:#f4f7fb;--muted:#8fa8c1;--green:#45d483;--red:#ff7373;--blue:#63a9ff}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}button,input{font:inherit}.hidden{display:none!important}.muted{color:var(--muted)}
.login-page{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at 50% 0,#123158,var(--bg) 58%);padding:24px}.login-card{width:min(440px,100%);background:rgba(13,27,45,.97);border:1px solid var(--line);border-radius:18px;padding:34px;box-shadow:0 28px 80px #0008}.login-logo{width:250px;max-width:100%;display:block;margin:0 auto 22px}.login-card h1{text-align:center;margin:0}.login-card>p{text-align:center;margin:8px 0 26px}label{display:block;margin:16px 0 8px;font-size:14px}input{width:100%;margin-top:7px;padding:13px;border:1px solid #29445f;border-radius:9px;background:#081524;color:white;outline:none}input:focus{border-color:var(--yellow)}.primary{width:100%;margin-top:20px;padding:13px;border:0;border-radius:9px;background:var(--yellow);font-weight:800;cursor:pointer}.error{color:var(--red);min-height:18px;font-size:13px}
.app{display:flex;min-height:100vh}.sidebar{width:235px;position:fixed;inset:0 auto 0 0;background:var(--sidebar);border-right:1px solid var(--line);display:flex;flex-direction:column;z-index:20}.side-brand{height:82px;padding:15px 18px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px}.side-brand img{width:118px}.side-brand span{font-weight:700;font-size:14px;white-space:nowrap}.sidebar nav{padding:18px 12px;display:grid;gap:6px}.nav-item{border:0;background:transparent;color:#b7c9db;text-align:left;padding:12px 14px;border-radius:9px;cursor:pointer;font-weight:700}.nav-item span{display:inline-block;width:26px;color:var(--yellow)}.nav-item:hover,.nav-item.active{background:#10263e;color:white}.nav-item.active{box-shadow:inset 3px 0 var(--yellow)}.side-footer{margin-top:auto;padding:18px;color:var(--muted)}
.main{margin-left:235px;width:calc(100% - 235px);min-height:100vh}.topbar{height:82px;background:#081524;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:10}.topbar>div:first-of-type{display:grid;gap:4px}.topbar small,.userbox small{display:block;color:var(--muted);font-size:12px;margin-top:3px}.userbox{display:flex;align-items:center;gap:18px;text-align:right}.outline{background:transparent;border:1px solid #35516c;color:white;border-radius:8px;padding:9px 14px;font-weight:700;cursor:pointer}.menu-button{display:none;background:transparent;border:0;color:white;font-size:24px}
.content{padding:30px;max-width:1500px;margin:auto}.page-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.page-heading h1{margin:0 0 5px;font-size:28px}.page-heading p{margin:0;color:var(--muted)}.badge{border:1px solid #31506d;border-radius:99px;padding:8px 12px;font-size:12px;font-weight:800}.badge.online{color:var(--green);border-color:#286745}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:20px}.stat,.panel{background:var(--panel);border:1px solid var(--line);border-radius:14px}.stat{padding:20px}.stat span{display:block;color:var(--muted);font-size:13px}.stat strong{display:block;font-size:30px;margin:10px 0 5px}.stat small{color:var(--muted)}.two-col{display:grid;grid-template-columns:2fr 1fr;gap:20px}.panel{padding:20px}.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.panel h2{font-size:17px;margin:0}.link-button{border:0;background:transparent;color:var(--blue);cursor:pointer}.list-row{display:grid;grid-template-columns:1fr auto;align-items:center;padding:14px 0;border-top:1px solid var(--line)}.list-row:first-child{border-top:0}.list-row small{display:block;color:var(--muted);margin-top:4px}.status{font-size:11px;font-weight:800;padding:6px 9px;border-radius:99px}.status.online,.status.active{background:#123c2b;color:var(--green)}.status.offline,.status.suspended{background:#3c2024;color:#ff9696}.kv{display:flex;justify-content:space-between;gap:20px;padding:14px 0;border-bottom:1px solid var(--line)}.kv:last-child{border-bottom:0}.kv span{color:var(--muted)}.empty{text-align:center;padding:50px 25px}.empty p{color:var(--muted);max-width:600px;margin:10px auto}
.table-wrap{overflow:auto}.data-table{width:100%;border-collapse:collapse;min-width:650px}.data-table th{text-align:left;color:var(--muted);font-size:12px;padding:12px;border-bottom:1px solid var(--line)}.data-table td{padding:14px 12px;border-bottom:1px solid var(--line);font-size:14px}.data-table tr:last-child td{border-bottom:0}.loading,.no-data{padding:30px;text-align:center;color:var(--muted)}
@media(max-width:1000px){.stats{grid-template-columns:1fr 1fr}.two-col{grid-template-columns:1fr}}
@media(max-width:760px){.sidebar{transform:translateX(-100%);transition:.2s}.sidebar.open{transform:translateX(0);box-shadow:20px 0 50px #0009}.main{margin-left:0;width:100%}.menu-button{display:block}.topbar{padding:0 16px}.content{padding:20px}.userbox>div{display:none}.stats{grid-template-columns:1fr 1fr}.side-brand span{display:none}}
@media(max-width:460px){.stats{grid-template-columns:1fr}.page-heading h1{font-size:24px}}

.refresh-info{display:flex;align-items:center;gap:12px}.refresh-info>span:first-child{color:var(--muted);font-size:12px}
.badge.error{color:var(--red);border-color:#6b3030}
@media(max-width:600px){.refresh-info>span:first-child{display:none}}

.device-link{background:none;border:0;color:var(--text);font-weight:700;padding:0;cursor:pointer;text-align:left}.device-link:hover{color:var(--blue);text-decoration:underline}
.back-button{border:0;background:transparent;color:var(--blue);padding:0;margin:0 0 10px;cursor:pointer;font-weight:700}
.detail-grid{display:grid;grid-template-columns:1fr 1.35fr;gap:20px;margin-bottom:20px}.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.metric{background:var(--panel2);border:1px solid var(--line);border-radius:11px;padding:16px}.metric span,.metric small{display:block;color:var(--muted);font-size:12px}.metric strong{display:block;font-size:20px;margin:8px 0 3px;word-break:break-word}.mini-muted{color:var(--muted);font-size:12px}.detail-history{margin-top:0}
@media(max-width:900px){.detail-grid{grid-template-columns:1fr}}@media(max-width:520px){.metric-grid{grid-template-columns:1fr}}

.primary.compact{width:auto;margin:0;padding:10px 15px}.action-group{display:flex;gap:7px;flex-wrap:wrap}.action-btn{border:1px solid #35516c;background:transparent;color:#dbe8f5;border-radius:7px;padding:7px 9px;cursor:pointer;font-size:12px}.action-btn:hover{border-color:var(--blue)}.action-btn.warn{color:#ffcf70}.action-btn.good{color:var(--green)}
.modal{position:fixed;inset:0;background:#000a;z-index:100;display:grid;place-items:center;padding:20px}.modal-card{width:min(520px,100%);background:var(--panel);border:1px solid var(--line);border-radius:15px;padding:22px;box-shadow:0 25px 80px #000b}.modal-card.small{width:min(430px,100%)}.modal-head{display:flex;justify-content:space-between;align-items:center}.modal-head h2{margin:0}.modal-x{border:0;background:transparent;color:var(--muted);font-size:26px;cursor:pointer}.modal select{width:100%;margin-top:7px;padding:13px;border:1px solid #29445f;border-radius:9px;background:#081524;color:white}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}.danger{border:0;background:#b93a47;color:white;border-radius:8px;padding:10px 14px;font-weight:700;cursor:pointer}.form-help,.confirm-text{color:var(--muted);font-size:13px;line-height:1.5}.self-tag{font-size:10px;color:var(--yellow);margin-left:6px}