:root{--bg:#0b1020;--panel:#11182c;--panel2:#17213a;--text:#eef3ff;--muted:#9da9c3;--brand:#27e6a7;--danger:#ff5d6c;--line:#25304c}*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;background:#091020;color:var(--text)}a{color:inherit;text-decoration:none}.app{display:flex;min-height:100vh}.sidebar{width:270px;background:#070c18;border-right:1px solid var(--line);padding:22px;position:sticky;top:0;height:100vh}.brand{display:flex;align-items:center;gap:12px}.brand.center{justify-content:center}.brand-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,var(--brand),#35a7ff);color:#06101f;font-weight:900}.brand strong{display:block}.brand small,.topbar small,.muted{color:var(--muted)}nav{margin-top:34px;display:grid;gap:8px}nav a{padding:13px 14px;border-radius:14px;color:#cbd6ee}nav a:hover{background:var(--panel2);color:white}.main{flex:1;display:flex;flex-direction:column}.topbar{height:74px;display:flex;align-items:center;justify-content:space-between;padding:0 28px;border-bottom:1px solid var(--line);background:rgba(9,16,32,.8);backdrop-filter:blur(10px)}.content{padding:28px;flex:1}.footer{padding:18px 28px;color:var(--muted);border-top:1px solid var(--line)}h1{font-size:34px;margin:0 0 8px}h2{margin-top:0}.btn{border:0;border-radius:13px;background:var(--brand);color:#06101f;font-weight:800;padding:12px 16px;cursor:pointer;display:inline-block}.btn.ghost{background:#202b47;color:#dce6ff}.btn.danger{background:var(--danger);color:#fff}.btn.full{width:100%;margin-top:18px}.panel,.card,.stat,.login-card,.monitor-card{background:linear-gradient(180deg,var(--panel),#0d1428);border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:0 16px 40px rgba(0,0,0,.25)}.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:24px 0}.stat strong{font-size:34px;display:block}.stat span{color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;margin-top:18px}.card-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.badge{font-size:12px;padding:6px 9px;border-radius:999px;background:#2b3654;color:#dce6ff}.badge.connected{background:#0c7b59}.badge.error,.badge.blocked{background:#7b0c20}.badge.qr_ready{background:#755d00}.table{overflow:auto}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:14px;border-bottom:1px solid var(--line)}th{color:#9da9c3}.inline-form{display:flex;gap:12px;align-items:center;flex-wrap:wrap}input{background:#091020;border:1px solid var(--line);border-radius:13px;color:white;padding:12px;outline:none}label{display:grid;gap:6px;color:#cbd6ee}.qrbox{display:grid;place-items:center;min-height:210px;border:1px dashed #34415f;border-radius:18px;margin:14px 0;color:var(--muted);text-align:center;padding:12px}.qrbox img{max-width:190px;border-radius:12px;background:#fff;padding:8px}.monitor-grid{display:grid;grid-template-columns:repeat(var(--cols),minmax(220px,1fr));gap:16px}.monitor-card{min-height:180px}.message{background:#0a1224;border:1px solid var(--line);border-radius:16px;padding:12px;margin-top:12px}.login-page{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at top,#172b48,#070c18)}.login-card{width:min(420px,92vw)}.login-card h1{text-align:center;font-size:28px}.login-card p{text-align:center;color:var(--muted)}.login-card label{margin-top:12px}.login-card input{width:100%}.alert{padding:12px;border-radius:13px;margin:12px 0}.alert.danger{background:#481522;color:#ffdce0}@media(max-width:900px){.app{display:block}.sidebar{position:relative;width:auto;height:auto}.topbar{height:auto;padding:16px}.content{padding:18px}.stats{grid-template-columns:1fr}.monitor-grid{grid-template-columns:1fr!important}.inline-form{display:grid}.sidebar nav{grid-template-columns:repeat(2,1fr)}}