:root{
  --bg:#0b1220;
  --panel:#0f1a2e;
  --panel2:#111f36;
  --text:#e7ecff;
  --muted:#9fb0d6;
  --line:#1b2c4d;
  --accent:#3aa0ff;
  --danger:#ff4d4d;
  --ok:#22c55e;
  --warn:#fbbf24;
  --shadow: 0 10px 25px rgba(0,0,0,.25);
  --radius:14px;
  --font: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:linear-gradient(180deg,#070d18,#0b1220);color:var(--text);font-family:var(--font)}
a{color:inherit;text-decoration:none}
.small{font-size:12px}
.muted{color:var(--muted)}
.app{display:flex;min-height:100vh}
.sidebar{width:280px;flex:0 0 280px;background:rgba(15,26,46,.95);border-right:1px solid var(--line);display:flex;flex-direction:column}
.brand{display:flex;gap:12px;align-items:center;padding:18px;border-bottom:1px solid var(--line)}
.brand-logo{width:44px;height:44px;border-radius:12px;background:rgba(58,160,255,.15);display:grid;place-items:center;overflow:hidden}
.brand-logo img{width:100%;height:100%;object-fit:cover}
.logo-fallback{font-weight:700;color:var(--accent)}
.brand-title{font-weight:700}
.brand-sub{font-size:12px;color:var(--muted)}
.nav{display:flex;flex-direction:column;padding:10px}
.nav-item{padding:10px 12px;border-radius:12px;color:var(--text);opacity:.92}
.nav-item:hover{background:rgba(58,160,255,.12)}
.nav-item.danger:hover{background:rgba(255,77,77,.15)}
.sidebar-footer{margin-top:auto;padding:14px 18px;border-top:1px solid var(--line)}
.main{flex:1;min-width:0}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:18px 20px;border-bottom:1px solid var(--line);background:rgba(11,18,32,.65);backdrop-filter: blur(6px)}
.page-title{font-size:18px;font-weight:700}
.user-pill{padding:8px 12px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.03)}
.content{padding:18px 20px}
.grid{display:grid;gap:14px}
.grid.cols-2{grid-template-columns: repeat(2, minmax(0,1fr))}
.grid.cols-3{grid-template-columns: repeat(3, minmax(0,1fr))}
@media (max-width: 980px){
  .sidebar{width:86px;flex-basis:86px}
  .brand-text{display:none}
  .nav-item{font-size:12px;padding:10px}
  .grid.cols-2,.grid.cols-3{grid-template-columns:1fr}
}
.card{background:rgba(17,31,54,.85);border:1px solid var(--line);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow)}
.card h3{margin:0 0 10px 0;font-size:15px}
.row{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 12px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.03);cursor:pointer}
.btn:hover{background:rgba(58,160,255,.12)}
.btn.primary{background:rgba(58,160,255,.18);border-color:rgba(58,160,255,.35)}
.btn.danger{background:rgba(255,77,77,.12);border-color:rgba(255,77,77,.30)}
.btn.ok{background:rgba(34,197,94,.12);border-color:rgba(34,197,94,.30)}
.table{width:100%;border-collapse:separate;border-spacing:0 10px}
.table th{font-size:12px;color:var(--muted);text-align:left;padding:0 10px}
.table td{background:rgba(255,255,255,.03);border:1px solid var(--line);padding:10px;border-left:none;border-right:none}
.table tr td:first-child{border-left:1px solid var(--line);border-top-left-radius:12px;border-bottom-left-radius:12px}
.table tr td:last-child{border-right:1px solid var(--line);border-top-right-radius:12px;border-bottom-right-radius:12px}
.badge{display:inline-flex;align-items:center;padding:4px 8px;border-radius:999px;border:1px solid var(--line);font-size:12px}
.badge.ok{border-color:rgba(34,197,94,.5);background:rgba(34,197,94,.12)}
.badge.warn{border-color:rgba(251,191,36,.5);background:rgba(251,191,36,.12)}
.badge.danger{border-color:rgba(239,68,68,.55);background:rgba(239,68,68,.12)}
.badge.info{border-color:rgba(59,130,246,.55);background:rgba(59,130,246,.12)}
.badge.muted{background:rgba(255,255,255,.03)}
.form label{display:block;font-size:12px;color:var(--muted);margin:12px 0 6px}
.input, select, textarea{width:100%;padding:10px 12px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text);outline:none}
textarea{min-height:90px;resize:vertical}
.alert{padding:10px 12px;border-radius:12px;border:1px solid var(--line);margin-bottom:12px}
.alert.success{border-color:rgba(34,197,94,.45);background:rgba(34,197,94,.12)}
.alert.error{border-color:rgba(255,77,77,.45);background:rgba(255,77,77,.12)}
.kpi{display:flex;flex-direction:column;gap:4px}
.kpi .v{font-size:22px;font-weight:800}
.kpi .l{font-size:12px;color:var(--muted)}
.hr{height:1px;background:var(--line);margin:12px 0}
.msg{display:flex;flex-direction:column;gap:8px}
.msg-item{padding:10px 12px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.03)}
.msg-item .meta{display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}


/* responsive helpers */
.table-wrap{width:100%;overflow:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--radius)}
.table{min-width:720px} /* enables horizontal scroll on small screens */
.icon-btn{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.03);cursor:pointer}
.icon-btn:hover{background:rgba(58,160,255,.12)}
.hamburger{display:none;margin-right:10px;font-size:18px;line-height:1}
.sidebar-backdrop{display:none}
.btn,.input,select,textarea{min-height:44px}


@media (max-width: 720px){
  .hamburger{display:inline-flex}
  .app{display:block}
  .sidebar{position:fixed;top:0;left:0;height:100vh;max-height:100vh;overflow:auto;z-index:60;transform:translateX(-110%);transition:transform .18s ease;width:280px}
  body.sidebar-open .sidebar{transform:translateX(0)}
  .sidebar-backdrop{position:fixed;inset:0;z-index:50;background:rgba(0,0,0,.45)}
  body.sidebar-open .sidebar-backdrop{display:block}
  .topbar{position:sticky;top:0;z-index:40;padding:12px 14px}
  .page-title{font-size:16px}
  .content{padding:14px}
  .grid.cols-2,.grid.cols-3{grid-template-columns:1fr}
  .row{gap:10px}
  .btn{width:100%;justify-content:center}
  .btn.inline{width:auto}
  .table{min-width:640px}
}
@media (max-width: 420px){
  .table{min-width:560px}
  .user-pill{display:none}
  .brand{padding:12px}
}


/* cards view (mobile) */
.table-wrap.cards{overflow:visible;border:none}
.table.cards{min-width:0}
@media (max-width: 720px){
  .table.cards{min-width:0;border-spacing:0}
  .table.cards thead{display:none}
  .table.cards tbody,
  .table.cards tr,
  .table.cards td{display:block;width:100%}
  .table.cards tr{
    margin:0 0 12px 0;
    border:1px solid var(--line);
    border-radius:12px;
    background:rgba(255,255,255,.03);
    overflow:hidden;
  }
  .table.cards td{
    background:transparent;
    border:none;
    border-bottom:1px solid var(--line);
    padding:10px 12px;
  }
  .table.cards td:last-child{border-bottom:none}
  .table.cards td::before{
    content:attr(data-label);
    display:block;
    font-size:12px;
    color:var(--muted);
    margin-bottom:4px;
  }
  .table.cards td[data-label=""]::before,
  .table.cards td[colspan]::before{display:none;content:""}
  .table.cards .btn{width:100%;justify-content:center}
  .table.cards .btn.inline{width:auto}
}