:root{--bg:#080b12;--panel:#111827;--panel2:#172033;--txt:#eef4ff;--muted:#8ea0bd;--a:#67e8f9;--b:#a78bfa;--bad:#fb7185;--ok:#34d399}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 20% 0,#1e2b4d 0,#080b12 38%),var(--bg);color:var(--txt);font-family:Inter,Segoe UI,Arial,sans-serif;min-height:100vh}aside{position:fixed;left:0;top:0;bottom:0;width:260px;background:rgba(10,15,26,.8);backdrop-filter:blur(18px);border-right:1px solid rgba(255,255,255,.08);padding:24px}.brand,.logo{font-weight:900;font-size:26px;letter-spacing:.08em}.brand span,.logo span{color:var(--a)}nav{display:grid;gap:10px;margin-top:34px}nav a,.logout{padding:13px 14px;border-radius:14px;color:var(--muted);text-decoration:none;cursor:pointer}nav a.on,nav a:hover{background:linear-gradient(135deg,rgba(103,232,249,.16),rgba(167,139,250,.14));color:#fff}.logout{position:absolute;bottom:22px;left:24px;right:24px;background:#111827}main{margin-left:260px;padding:34px;max-width:1400px}header h1{margin:0;font-size:38px}header p,.muted{color:var(--muted)}.tab{display:none}.tab.on{display:block}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.cards{grid-template-columns:repeat(4,minmax(0,1fr));margin:24px 0}.card{background:linear-gradient(180deg,rgba(23,32,51,.86),rgba(15,23,42,.86));border:1px solid rgba(255,255,255,.08);box-shadow:0 20px 60px rgba(0,0,0,.35);border-radius:24px;padding:22px;margin-bottom:18px}.card small{color:var(--muted);display:block;margin-bottom:8px}.card b{font-size:30px}.card h2{margin-top:0}button,input,textarea{font:inherit}button{border:0;background:linear-gradient(135deg,var(--a),var(--b));color:#06101a;font-weight:800;border-radius:14px;padding:12px 16px;cursor:pointer;margin:6px 6px 6px 0}button.danger{background:linear-gradient(135deg,#fb7185,#f97316)}input,textarea{width:100%;background:#090f1d;border:1px solid rgba(255,255,255,.1);color:#fff;border-radius:14px;padding:13px;margin:6px 0 12px}textarea{min-height:420px;font-family:Consolas,monospace}pre{white-space:pre-wrap;background:#070b14;border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:16px;overflow:auto}.player{display:grid;grid-template-columns:1fr auto auto;gap:10px;align-items:center;padding:14px;border-radius:14px;background:#0b1220;margin:8px 0}.pill{color:#06101a;background:var(--ok);padding:5px 10px;border-radius:999px;font-weight:800}.login{display:grid;place-items:center}.loginbox{width:min(430px,92vw);background:rgba(17,24,39,.86);border:1px solid rgba(255,255,255,.1);border-radius:28px;padding:34px;box-shadow:0 30px 100px #000}.loginbox button{width:100%}.err{color:var(--bad)}code{background:#080d18;padding:2px 6px;border-radius:6px}@media(max-width:900px){aside{position:relative;width:auto}main{margin-left:0;padding:18px}.grid,.cards{grid-template-columns:1fr}.logout{position:static;display:block;margin-top:18px}.player{grid-template-columns:1fr}}