:root{
  --bg:#0b0f14; --fg:#e8ecf1; --muted:#aeb7c3;
  --card:rgba(14,18,24,.78); --border:#223046;
  --chip:rgba(20,26,36,.75);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;min-height:100vh;background:var(--bg);color:var(--fg);font-family:Inter,system-ui,Segoe UI,Roboto,Arial,sans-serif}

/* Background image */
body{
  background: #0b0f14 url('assets/background.png') center/cover no-repeat fixed,
              radial-gradient(60% 60% at 50% 20%, rgba(0,0,0,0), rgba(0,0,0,.45));
}

header{
  position:sticky; top:0;
  background:linear-gradient(180deg, rgba(8,10,14,.92), rgba(8,10,14,.65));
  backdrop-filter: blur(8px);
  border-bottom:1px solid #1a2536;
  z-index:10;
}
.container{max-width:1150px;margin:0 auto;padding:16px}

.brand{display:flex;align-items:center;gap:12px}
.brand img.logo{width:56px;height:56px;border-radius:10px;box-shadow:0 0 0 1px #2a384f, 0 6px 18px rgba(0,0,0,.35)}
.brand .titles h1{margin:0;font-size:24px;line-height:1.15}
.brand .titles .sub{color:var(--muted);font-size:12px;margin-top:2px}

.toolbar{display:grid;grid-template-columns:1fr 160px 160px 160px;gap:8px;margin-top:12px}
input[type="search"], select{background:var(--card);border:1px solid var(--border);color:var(--fg);padding:10px 12px;border-radius:12px;outline:none}
input[type="search"]::placeholder{color:#9aa5b1}

.toc{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 6px}
.chip{background:var(--chip);color:var(--fg);padding:6px 10px;border-radius:999px;text-decoration:none;border:1px solid var(--border);font-size:12px}

main .lvl-head{display:flex;align-items:center;gap:10px}
h2{font-size:20px;margin:18px 0 10px;color:#e9f2ff;text-shadow:0 1px 0 rgba(0,0,0,.35)}

ul.items{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:12px}
li.item{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:12px 12px 10px;display:flex;flex-direction:column;gap:6px;box-shadow:0 6px 14px rgba(0,0,0,.2)}
.name{font-weight:700;letter-spacing:.2px}
.meta{color:var(--muted);font-size:12px;display:flex;flex-wrap:wrap;gap:6px}
.meta .tag{background:rgba(20,26,36,.6);border:1px solid var(--border);border-radius:6px;padding:2px 6px}
.stats{font-size:13px}
.muted{color:var(--muted)}
footer{border-top:1px solid #1a2536;margin-top:24px}
.count{font-size:12px;color:var(--muted)}

@media (max-width:760px){
  .toolbar{grid-template-columns:1fr 1fr;grid-auto-rows:auto}
  .brand .titles h1{font-size:18px}
  .brand img.logo{width:44px;height:44px}
}