:root{
  --bg:#0b0e13;
  --panel:#141922;
  --panel2:#1b2230;
  --text:#f4f7fb;
  --muted:#95a1b3;
  --line:#2a3444;
  --accent:#64d7ff;
  --danger:#ff4d5e;
  --success:#44d492;
  --warning:#f2c94c;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
a{color:var(--accent);text-decoration:none}
h1,h2{letter-spacing:-.025em}
.center-page{min-height:100vh;display:grid;place-items:center;padding:24px}
.container{width:min(1180px,calc(100% - 32px));margin:28px auto}
.card{background:linear-gradient(180deg,var(--panel2),var(--panel));border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:0 18px 50px rgba(0,0,0,.18)}
.landing,.auth-card{width:min(520px,100%)}
.brand{font-weight:900;letter-spacing:.08em}.brand span{color:var(--accent)}
.topbar{height:72px;padding:0 24px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:#0e1219;position:sticky;top:0;z-index:10}
.stack{display:grid;gap:14px}
label{display:grid;gap:7px;color:#dbe4f0;font-size:.94rem}
input,select{width:100%;padding:12px 13px;border-radius:10px;border:1px solid var(--line);background:#0d1118;color:var(--text);outline:none}
input:focus{border-color:var(--accent)}
.button,.small,.big-control{border:0;border-radius:11px;background:var(--accent);color:#071018;font-weight:800;cursor:pointer}
.button{padding:13px 18px}
.small{padding:8px 10px;font-size:.82rem}
.big-control{padding:20px;width:100%;font-size:1.05rem}
.big-control:disabled{opacity:.45;cursor:not-allowed}
.live-control{background:var(--danger);color:white}
.inline{display:inline}
.linkbtn{background:none;border:0;color:var(--accent);cursor:pointer}
.muted{color:var(--muted)}
.grid{display:grid;gap:18px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.alert{padding:12px 14px;border-radius:10px;margin:12px 0;border:1px solid var(--line)}
.alert.ok{border-color:#2c765a;background:#10281f}
.alert.error{border-color:#813a43;background:#2d1418}
.alert.warning{border-color:#7b6a2e;background:#29230f}
.badge{display:inline-block;padding:4px 8px;border-radius:999px;background:#293140;font-size:.72rem;font-weight:800}
.badge.live{background:#163e2e;color:#70f0b6}.badge.master{background:#44370f;color:#ffd96a}
.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}th,td{padding:13px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.tabs{display:flex;gap:8px;margin:18px 0;flex-wrap:wrap}.tabs a{padding:9px 12px;background:var(--panel);border:1px solid var(--line);border-radius:9px}.tabs a.active{border-color:var(--accent)}
.dj-list{display:grid}.dj-row{display:flex;justify-content:space-between;gap:18px;padding:14px 0;border-top:1px solid var(--line)}.dj-row:first-child{border-top:0}.actions{display:flex;gap:8px;align-items:center}
.studio-body{background:radial-gradient(circle at top,#142131,#080b10 55%)}
.studio-shell{width:min(1000px,calc(100% - 32px));margin:30px auto}
.onair-card{display:flex;gap:18px;align-items:flex-start;border:1px solid var(--line);border-radius:20px;padding:24px;background:#121721;margin-bottom:18px}
.onair-card.is-live{border-color:#7c2730;background:linear-gradient(135deg,#2a1115,#15171d)}
.live-dot{width:18px;height:18px;border-radius:50%;background:#596273;margin-top:8px;box-shadow:0 0 0 7px rgba(89,98,115,.12)}
.is-live .live-dot{background:var(--danger);box-shadow:0 0 0 7px rgba(255,77,94,.13),0 0 28px rgba(255,77,94,.5)}
.studio-control{min-height:220px}.meter{height:10px;background:#090c11;border-radius:999px;overflow:hidden;margin:22px 0}.meter span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--success),var(--warning));transition:width .08s}
.readonly-state{padding:20px;border:1px dashed var(--line);border-radius:12px;color:var(--muted)}
.participants{display:grid;gap:8px}.participant{display:flex;align-items:center;gap:10px;padding:12px;border-radius:10px;background:#10151d}.presence{width:9px;height:9px;border-radius:50%;background:#555}.presence.online{background:var(--success)}
hr{border:0;border-top:1px solid var(--line);width:100%}
@media(max-width:760px){.grid.two{grid-template-columns:1fr}.topbar{padding:0 14px}.container,.studio-shell{width:min(100% - 20px,1000px)}.dj-row{flex-direction:column}.actions{align-items:flex-start}}


/* HexiviaCast Control hierarchy v0.1.6 */
.page-heading,.section-heading,.videochat-header,.radio-main,.radio-actions,.form-actions,.meta-row,.back-row{
  display:flex;
  align-items:center;
  gap:12px;
}
.page-heading,.section-heading,.videochat-header,.radio-main{
  justify-content:space-between;
}
.section-heading{margin-bottom:16px}
.eyebrow{
  color:var(--accent);
  font-size:.72rem;
  font-weight:900;
  letter-spacing:.12em;
}
.create-videochat-card{margin-bottom:28px}
.form-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.full-span{grid-column:1/-1}
.form-actions{justify-content:flex-start;flex-wrap:wrap;margin-top:4px}
.button-secondary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:#202937;
  color:var(--text);
  border:1px solid var(--line);
}
.button-danger,.button-danger-outline{
  background:var(--danger);
  color:#fff;
}
.button-danger-outline{
  background:transparent;
  border:1px solid #7c2730;
  color:#ff9aa3;
}
.admin-list{margin-top:28px}
.count-pill{
  min-width:34px;
  height:34px;
  display:inline-grid;
  place-items:center;
  border-radius:999px;
  background:#202937;
  border:1px solid var(--line);
  color:var(--text);
  font-weight:800;
}
.videochat-stack{display:grid;gap:18px}
.videochat-card{padding:0;overflow:hidden}
.videochat-header{padding:22px}
.meta-row{flex-wrap:wrap;color:var(--muted);font-size:.9rem}
.radio-empty{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:18px;
  padding:20px 22px;
  border-top:1px solid var(--line);
  background:#10151d;
}
.radio-empty p{margin:.35rem 0 0}
.radio-panel{
  padding:20px 22px;
  border-top:1px solid var(--line);
  background:#10151d;
}
.radio-main{align-items:flex-start}
.radio-panel h3{margin:.25rem 0 .55rem}
.radio-actions{margin-top:16px;flex-wrap:wrap}
.status-column{display:flex;align-items:flex-start}
.compact-url{margin-top:6px;word-break:break-all}
.empty-state{text-align:center;padding:36px}
.narrow-container{width:min(760px,calc(100% - 32px))}
.back-row{margin-bottom:14px}
.danger-zone{
  margin-top:18px;
  border-color:#71313a;
  background:linear-gradient(180deg,#25171b,#181317);
}
.danger-zone h2{color:#ff9aa3}

@media(max-width:900px){
  .form-grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:760px){
  .form-grid-3{grid-template-columns:1fr}
  .videochat-header,.radio-empty,.radio-main{
    align-items:flex-start;
    flex-direction:column;
  }
  .page-heading,.section-heading{
    align-items:flex-start;
  }
}