:root{
    --bg:#0b1020;
    --panel:#121a2d;
    --panel-soft:#17223a;
    --border:#283653;
    --text:#eef3ff;
    --muted:#98a6c2;
    --accent:#6978ff;
    --danger:#e95d6a;
    --success:#39c98b;
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}
a{color:inherit;text-decoration:none}
.app-shell{min-height:100vh;display:grid;grid-template-columns:250px minmax(0,1fr)}
.sidebar{background:#0d1426;border-right:1px solid var(--border);padding:22px;display:flex;flex-direction:column;gap:24px}
.brand{font-size:20px;font-weight:800}
.brand small{display:block;margin-top:4px;color:var(--muted);font-size:11px}
nav{display:grid;gap:7px}
nav a{padding:10px 12px;border-radius:9px;color:#ced7e9}
nav a:hover{background:var(--panel-soft)}
.sidebar-user{margin-top:auto;display:grid;gap:4px;color:var(--muted);font-size:13px}
.sidebar-user strong{color:var(--text)}
.sidebar-user a{color:#ff9da5}
.content{padding:28px;min-width:0}
.topbar{margin-bottom:22px}
.topbar h1{margin:0}
.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.card,.panel{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:18px}
.card h3,.panel h3{margin-top:0}
.metric{font-size:30px;font-weight:800}
.muted{color:var(--muted)}
.row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
form.panel{display:grid;gap:14px}
label{display:grid;gap:6px;color:#d5deee;font-size:14px}
input,select,textarea{width:100%;padding:11px 12px;border-radius:9px;border:1px solid var(--border);background:#0d1426;color:var(--text)}
textarea{min-height:100px;resize:vertical}
button,.btn{display:inline-block;border:0;border-radius:9px;padding:10px 14px;background:var(--accent);color:white;cursor:pointer;font-weight:700}
button:disabled{opacity:.55;cursor:not-allowed}
.btn.secondary{background:#263451}
.btn.danger{background:var(--danger)}
.actions{display:flex;flex-wrap:wrap;gap:8px}
table{width:100%;border-collapse:collapse}
th,td{padding:12px;border-bottom:1px solid var(--border);text-align:left;font-size:14px;vertical-align:top}
.table-wrap{overflow-x:auto}
.flash{padding:12px 14px;border-radius:9px;margin-bottom:16px}
.flash.success{background:#143d32}
.flash.error{background:#4b2027}
.flash.info{background:#182f52}
.badge{display:inline-flex;padding:4px 8px;border-radius:999px;background:#273551;font-size:12px}
.badge.live{background:#5a1d27}
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:20px}
.login-card{width:min(520px,100%);background:var(--panel);border:1px solid var(--border);padding:28px;border-radius:16px}
.checklist{display:grid;gap:8px;margin:18px 0}
.check{display:flex;justify-content:space-between;gap:20px;padding:10px 12px;border:1px solid var(--border);border-radius:9px}
.ok{color:#65e0aa}
.bad{color:#ff8f99}
code{overflow-wrap:anywhere}
footer{margin-top:30px;color:var(--muted);font-size:12px}
@media(max-width:900px){
    .app-shell{grid-template-columns:1fr}
    .grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .row{grid-template-columns:1fr}
}
@media(max-width:560px){
    .content{padding:16px}
    .grid{grid-template-columns:1fr}
}