:root{
  --bg:#0b1020;
  --card:#111936;
  --card2:#162044;
  --text:#f6f7fb;
  --muted:#aeb7d5;
  --brand:#7c5cff;
  --brand2:#00d4ff;
  --danger:#ff4d6d;
  --ok:#3ee28b;
  --line:rgba(255,255,255,.12);
  --shadow:0 24px 80px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at top left,rgba(124,92,255,.35),transparent 34rem),
    radial-gradient(circle at top right,rgba(0,212,255,.22),transparent 34rem),
    var(--bg);
  min-height:100vh;
}
a{color:inherit;text-decoration:none}
main{min-height:calc(100vh - 150px)}
.topbar{
  position:sticky;top:0;z-index:10;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px clamp(16px,4vw,56px);
  background:rgba(11,16,32,.74);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.brand{font-size:25px;font-weight:900;letter-spacing:-.04em}
.brand span{color:var(--brand2)}
nav{display:flex;align-items:center;gap:16px;font-size:14px;color:var(--muted)}
nav a:hover{color:var(--text)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  border:0;border-radius:999px;
  padding:13px 20px;
  font-weight:800;
  color:white;
  background:linear-gradient(135deg,var(--brand),var(--brand2));
  box-shadow:0 12px 28px rgba(124,92,255,.25);
  cursor:pointer;
}
.btn.small{padding:9px 14px;font-size:13px}
.btn.full{width:100%;margin-top:10px}
.btn.ghost{background:rgba(255,255,255,.08);box-shadow:none;border:1px solid var(--line)}
.btn.danger{background:var(--danger);box-shadow:none}
.btn:disabled{opacity:.5;cursor:not-allowed}
.hero{
  display:grid;grid-template-columns:1.1fr .9fr;gap:46px;
  align-items:center;
  padding:70px clamp(18px,5vw,72px) 44px;
}
.hero-card{
  max-width:720px;
}
.badge{
  display:inline-flex;
  color:#dfe8ff;
  border:1px solid var(--line);
  background:rgba(255,255,255,.07);
  padding:8px 12px;border-radius:999px;
  margin-bottom:18px;font-size:14px;
}
h1{font-size:clamp(38px,7vw,82px);line-height:.94;margin:0 0 18px;letter-spacing:-.07em}
h2{margin:0 0 10px}
p{color:var(--muted);line-height:1.65}
.hero p{font-size:20px;max-width:640px}
.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.phone-preview{
  width:min(100%,410px);
  justify-self:center;
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.12),rgba(255,255,255,.04));
  border-radius:38px;
  padding:18px;
  box-shadow:var(--shadow);
}
.video-tile{
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--card),var(--card2));
  border:1px solid var(--line);
}
.video-tile.big{height:430px;border-radius:28px;font-size:72px}
.video-tile.small{
  width:120px;height:150px;border-radius:22px;
  margin:-170px 18px 18px auto;
  font-size:42px;
}
.control-row{display:flex;gap:10px;justify-content:center;margin-top:10px}
.control-row span{width:46px;height:46px;border-radius:50%;background:rgba(255,255,255,.12)}
.features{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
  padding:20px clamp(18px,5vw,72px) 70px;
}
.features article,.panel,.form-card{
  background:rgba(255,255,255,.075);
  border:1px solid var(--line);
  border-radius:28px;
  padding:26px;
  box-shadow:0 18px 60px rgba(0,0,0,.18);
}
.auth{display:flex;justify-content:center;padding:46px 18px}
.form-card{width:min(100%,720px)}
.form-card.compact{width:min(100%,460px)}
label{display:block;color:#dbe2ff;font-weight:700;margin:14px 0 6px}
input,select,textarea{
  width:100%;margin-top:7px;
  background:rgba(255,255,255,.08);
  border:1px solid var(--line);
  border-radius:16px;
  color:var(--text);
  padding:14px 15px;
  outline:none;
}
textarea{resize:vertical}
input:focus,select:focus,textarea:focus{border-color:rgba(0,212,255,.7)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.check{display:flex;gap:10px;align-items:flex-start;font-weight:500;color:var(--muted)}
.check input{width:auto;margin-top:4px}
.alert,.success{
  padding:12px 14px;border-radius:14px;margin:12px 0;
}
.alert{background:rgba(255,77,109,.16);border:1px solid rgba(255,77,109,.35)}
.success{background:rgba(62,226,139,.16);border:1px solid rgba(62,226,139,.35)}
.center{text-align:center}
.muted{color:var(--muted)}
.dashboard,.video-page,.admin{padding:42px clamp(18px,5vw,72px)}
.status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:24px 0}
.status-grid div{
  padding:18px;border:1px solid var(--line);border-radius:20px;background:rgba(255,255,255,.06)
}
.status-grid b{display:block;margin-bottom:8px}
.status-grid span{color:var(--muted)}
.video-grid{
  display:grid;grid-template-columns:1fr 270px;gap:18px;
}
video{
  width:100%;height:58vh;min-height:300px;
  background:#030712;
  border:1px solid var(--line);
  border-radius:28px;
  object-fit:cover;
}
#localVideo{height:260px;min-height:260px}
.video-controls{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin:20px 0}
.admin-grid{display:grid;gap:24px}
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse;min-width:720px}
th,td{padding:12px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}
th{color:#dce4ff}
td{color:var(--muted)}
.footer{text-align:center;padding:34px 18px;border-top:1px solid var(--line)}
@media(max-width:850px){
  .hero{grid-template-columns:1fr;padding-top:42px}
  .features{grid-template-columns:1fr}
  .video-grid{grid-template-columns:1fr}
  #localVideo{height:220px}
  .status-grid{grid-template-columns:1fr 1fr}
  nav{gap:10px;font-size:13px}
  .topbar{align-items:flex-start;gap:12px;flex-direction:column}
}
@media(max-width:520px){
  h1{font-size:42px}
  .hero p{font-size:17px}
  .grid2{grid-template-columns:1fr}
  .status-grid{grid-template-columns:1fr}
  .video-tile.big{height:330px}
}

.notice{
  max-width:980px;
  margin:0 auto 18px;
  padding:14px 16px;
  border-radius:18px;
  background:rgba(255,255,255,.08);
  border:1px solid var(--line);
  color:#dfe8ff;
}
.notice b{color:#fff}