:root{
  --bg:#0b1020;
  --panel:#111a2e;
  --panel2:#16213a;
  --text:#e5edf8;
  --muted:#8fa3bf;
  --line:#253653;
  --accent:#5eead4;
  --accent2:#60a5fa;
  --danger:#fb7185;
  --ok:#22c55e;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:Inter,Arial,sans-serif;
  background:
    radial-gradient(circle at 20% 10%,rgba(96,165,250,.18),transparent 35%),
    radial-gradient(circle at 80% 20%,rgba(94,234,212,.12),transparent 35%),
    var(--bg);
  color:var(--text);
  line-height:1.6;
}
a{color:inherit;text-decoration:none}
.container{max-width:1180px;margin:auto;padding:0 22px}
header{
  border-bottom:1px solid rgba(255,255,255,.08);
  background:rgba(11,16,32,.78);
  backdrop-filter:blur(12px);
  position:sticky;top:0;z-index:10;
}
.nav{height:72px;display:flex;align-items:center;justify-content:space-between}
.logo{font-weight:800;font-size:22px;letter-spacing:.2px}
.logo span{color:var(--accent)}
.menu{display:flex;gap:22px;align-items:center}
.menu a{color:var(--muted);font-size:14px}
.menu a:hover{color:var(--text)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:11px 18px;border-radius:12px;border:1px solid var(--line);
  background:var(--panel2);color:var(--text);font-weight:700;cursor:pointer;
}
.btn.primary{background:linear-gradient(135deg,var(--accent2),var(--accent));color:#06101f;border:0}
.hero{padding:76px 0 50px;display:grid;grid-template-columns:1.05fr .95fr;gap:38px;align-items:center}
.hero h1{font-size:54px;line-height:1.05;margin:0 0 18px}
.hero p{font-size:18px;color:var(--muted);max-width:620px}
.actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.visual{
  background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.1);
  border-radius:26px;padding:22px;box-shadow:0 20px 60px rgba(0,0,0,.35)
}
.video-card{background:#07101f;border-radius:18px;overflow:hidden;border:1px solid var(--line)}
.video-top{height:190px;background:
  linear-gradient(135deg,rgba(96,165,250,.4),rgba(94,234,212,.25)),
  radial-gradient(circle at center,rgba(255,255,255,.18),transparent 20%);
  display:flex;align-items:center;justify-content:center}
.play{width:68px;height:68px;border-radius:50%;background:rgba(255,255,255,.9);display:grid;place-items:center;color:#0b1020;font-size:28px}
.video-body{padding:18px}
.bar{height:9px;background:#24344f;border-radius:20px;margin:12px 0;overflow:hidden}
.bar span{display:block;height:100%;background:linear-gradient(90deg,var(--accent2),var(--accent));border-radius:20px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:42px 0}
.card{
  background:rgba(17,26,46,.86);border:1px solid rgba(255,255,255,.08);
  border-radius:20px;padding:24px;text-align:center
}
.icon{font-size:34px;margin-bottom:12px}
.card h3{margin:4px 0 8px}
.card p{color:var(--muted);margin:0}
.section{padding:54px 0}
.panel{
  background:rgba(17,26,46,.88);border:1px solid rgba(255,255,255,.08);
  border-radius:22px;padding:26px;
}
.form{max-width:440px;margin:70px auto;background:rgba(17,26,46,.92);border:1px solid rgba(255,255,255,.08);border-radius:22px;padding:30px}
.form h1{margin-top:0}
label{display:block;color:var(--muted);font-size:14px;margin:14px 0 6px}
input{
  width:100%;padding:13px 14px;border-radius:12px;border:1px solid var(--line);
  background:#0c1426;color:var(--text);outline:none
}
.notice{margin-top:16px;padding:12px;border-radius:12px;background:rgba(94,234,212,.12);border:1px solid rgba(94,234,212,.25);color:#bffbf3;display:none}
.dash{display:grid;grid-template-columns:240px 1fr;gap:22px;padding:34px 0}
.sidebar{background:rgba(17,26,46,.9);border:1px solid rgba(255,255,255,.08);border-radius:20px;padding:18px;height:fit-content}
.sidebar a{display:block;color:var(--muted);padding:12px;border-radius:12px}
.sidebar a.active,.sidebar a:hover{background:#182642;color:var(--text)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat{background:rgba(17,26,46,.9);border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:20px}
.stat b{font-size:28px}
table{width:100%;border-collapse:collapse;margin-top:18px}
th,td{border-bottom:1px solid var(--line);padding:13px;text-align:left}
th{color:var(--muted);font-weight:600}
.ok{color:var(--ok)}
.warn{color:#fbbf24}
footer{padding:34px 0;color:var(--muted);text-align:center;border-top:1px solid rgba(255,255,255,.08);margin-top:60px}
@media(max-width:820px){
  .hero{grid-template-columns:1fr}
  .grid,.stats{grid-template-columns:1fr}
  .dash{grid-template-columns:1fr}
  .hero h1{font-size:40px}
  .menu{gap:12px;font-size:13px}
}