:root{
  --bg:#07111f;
  --bg2:#0b1830;
  --card:rgba(11, 24, 48, 0.82);
  --card-border:rgba(148, 163, 184, 0.18);
  --text:#e5eefc;
  --muted:#9fb0cb;
  --accent:#7dd3fc;
  --accent-2:#4f46e5;
  --accent-3:#10b981;
  --danger:#ef4444;
  --shadow:0 26px 70px rgba(2, 6, 23, 0.44);
  --radius:28px;
}

*{box-sizing:border-box}
html,body{min-height:100%}
body{
  margin:0;
  color:var(--text);
  background:
    radial-gradient(circle at top left, rgba(79,70,229,.28), transparent 34%),
    radial-gradient(circle at bottom right, rgba(16,185,129,.20), transparent 30%),
    linear-gradient(160deg, var(--bg), var(--bg2));
  font-family:"Segoe UI Variable","Segoe UI",system-ui,sans-serif;
}

button,input{
  font:inherit;
}

button{
  border:0;
  cursor:pointer;
}

input{
  border:1px solid rgba(148,163,184,.2);
  background:rgba(2,6,23,.35);
  color:var(--text);
  border-radius:18px;
  padding:14px 16px;
  outline:none;
}

input:focus{
  border-color:rgba(125,211,252,.7);
  box-shadow:0 0 0 4px rgba(125,211,252,.12);
}

.hidden{display:none !important}

.bg-orb{
  position:fixed;
  inset:auto;
  width:34vw;
  aspect-ratio:1;
  border-radius:50%;
  filter:blur(20px);
  opacity:.35;
  pointer-events:none;
}

.orb-a{
  top:-8vw;
  left:-8vw;
  background:radial-gradient(circle, rgba(125,211,252,.7), transparent 68%);
}

.orb-b{
  right:-10vw;
  bottom:-12vw;
  background:radial-gradient(circle, rgba(79,70,229,.65), transparent 70%);
}

.studio-shell{
  width:min(1180px, calc(100% - 24px));
  margin:0 auto;
  padding:22px 0 34px;
  display:grid;
  gap:18px;
}

.card{
  background:var(--card);
  border:1px solid var(--card-border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  backdrop-filter:blur(16px);
}

.hero{
  padding:28px;
  display:grid;
  gap:18px;
}

.hero-copy h1{
  margin:8px 0 10px;
  font-size:clamp(2rem, 5vw, 3.6rem);
  line-height:1.02;
  max-width:12ch;
}

.hero-copy p{
  margin:0;
  max-width:64ch;
  color:var(--muted);
  line-height:1.6;
}

.hero-note{
  display:grid;
  gap:8px;
  padding:18px 18px 16px;
  border-radius:22px;
  background:rgba(15,23,42,.52);
  border:1px solid rgba(148,163,184,.16);
}

.hero-note p,
.hero-note strong{
  margin:0;
}

.hero-note p{
  color:var(--muted);
  line-height:1.55;
}

.eyebrow{
  margin:0;
  color:var(--accent);
  font-size:.76rem;
  text-transform:uppercase;
  letter-spacing:.18em;
}

.setup-card{
  padding:22px;
  display:grid;
  gap:18px;
}

.role-switch{
  display:inline-flex;
  padding:4px;
  gap:4px;
  border-radius:999px;
  background:rgba(15,23,42,.65);
  border:1px solid rgba(148,163,184,.14);
  width:max-content;
}

.role-pill{
  padding:11px 16px;
  border-radius:999px;
  color:var(--muted);
  background:transparent;
  transition:background .18s ease, color .18s ease, transform .18s ease;
}

.role-pill.active{
  color:#06101d;
  background:linear-gradient(135deg, #a5f3fc, #93c5fd);
  box-shadow:0 10px 24px rgba(125,211,252,.18);
}

.setup-grid{
  display:grid;
  grid-template-columns:minmax(220px, 1.1fr) auto;
  gap:16px;
  align-items:end;
}

.setup-actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

.field{
  display:grid;
  gap:8px;
}

.field span{
  color:var(--muted);
  font-size:.92rem;
}

.btn{
  padding:14px 18px;
  border-radius:18px;
  font-weight:700;
  transition:transform .16s ease, filter .16s ease, opacity .16s ease;
}

.btn:hover{
  transform:translateY(-1px);
}

.btn-primary{
  color:#02111f;
  background:linear-gradient(135deg, #7dd3fc, #a7f3d0);
}

.btn-secondary{
  color:var(--text);
  background:rgba(148,163,184,.12);
  border:1px solid rgba(148,163,184,.18);
}

.btn-danger{
  color:#fff;
  background:linear-gradient(135deg, #ef4444, #dc2626);
}

.status-strip{
  display:grid;
  grid-template-columns:repeat(3, minmax(0, 1fr));
  gap:12px;
}

.status-strip > div{
  padding:14px 16px;
  border-radius:22px;
  background:rgba(15,23,42,.52);
  border:1px solid rgba(148,163,184,.14);
  display:grid;
  gap:4px;
}

.status-label{
  color:var(--muted);
  font-size:.84rem;
}

.status-strip strong{
  font-size:1rem;
  font-weight:700;
}

.workspace{
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  gap:18px;
}

.preview-card,
.log-card{
  padding:20px;
}

.card-head{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:12px;
  margin-bottom:14px;
}

.card-head h2{
  margin:4px 0 0;
  font-size:1.3rem;
}

.badge{
  padding:8px 12px;
  border-radius:999px;
  background:rgba(16,185,129,.14);
  color:#bbf7d0;
  border:1px solid rgba(16,185,129,.24);
  font-weight:700;
  font-size:.84rem;
}

.video-frame{
  width:100%;
  aspect-ratio:16/10;
  background:#020617;
  border-radius:24px;
  border:1px solid rgba(148,163,184,.16);
  object-fit:cover;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.02);
}

.video-frame.remote{
  transform:scaleX(-1);
}

.empty-preview{
  margin-top:14px;
  padding:18px;
  border-radius:20px;
  border:1px dashed rgba(148,163,184,.25);
  color:var(--muted);
  line-height:1.55;
}

.empty-preview strong{
  display:block;
  color:var(--text);
  margin-bottom:6px;
}

.control-grid{
  display:grid;
  gap:10px;
  margin-top:14px;
}

.phone-controls,
.laptop-controls{
  grid-template-columns:repeat(2, minmax(0, 1fr));
}

.slider-row{
  margin-top:16px;
  display:grid;
  grid-template-columns:minmax(0, 1fr) auto;
  gap:12px;
  align-items:end;
}

.slider-row strong{
  padding-bottom:10px;
  font-size:1rem;
}

input[type="range"]{
  padding:0;
  border:0;
  background:transparent;
}

input[type="range"]::-webkit-slider-runnable-track{
  height:10px;
  border-radius:999px;
  background:linear-gradient(90deg, rgba(125,211,252,.92), rgba(167,243,208,.88));
}

input[type="range"]::-webkit-slider-thumb{
  -webkit-appearance:none;
  appearance:none;
  margin-top:-6px;
  width:22px;
  height:22px;
  border-radius:50%;
  background:#fff;
  border:3px solid #0f172a;
  box-shadow:0 6px 14px rgba(15,23,42,.24);
}

input[type="range"]::-moz-range-track{
  height:10px;
  border-radius:999px;
  background:linear-gradient(90deg, rgba(125,211,252,.92), rgba(167,243,208,.88));
}

input[type="range"]::-moz-range-thumb{
  width:22px;
  height:22px;
  border-radius:50%;
  background:#fff;
  border:3px solid #0f172a;
}

.download-box{
  margin-top:14px;
  display:flex;
  justify-content:space-between;
  gap:12px;
  align-items:center;
  padding:14px 16px;
  border-radius:18px;
  background:rgba(15,23,42,.52);
  border:1px solid rgba(148,163,184,.14);
}

.download-box a{
  color:#a5f3fc;
  text-decoration:none;
  font-weight:700;
}

.log-list{
  display:grid;
  gap:10px;
  max-height:220px;
  overflow:auto;
}

.log-item{
  padding:12px 14px;
  border-radius:16px;
  background:rgba(15,23,42,.48);
  border:1px solid rgba(148,163,184,.12);
  color:var(--muted);
  line-height:1.5;
}

.log-item strong{
  color:var(--text);
}

@media (max-width: 900px){
  .workspace,
  .status-strip,
  .setup-grid{
    grid-template-columns:1fr;
  }

  .setup-actions{
    width:100%;
  }

  .btn{
    flex:1 1 0;
  }

  .phone-controls,
  .laptop-controls{
    grid-template-columns:1fr;
  }
}

@media (max-width: 640px){
  .studio-shell{
    width:min(100% - 16px, 1000px);
    padding-top:12px;
  }

  .hero,
  .setup-card,
  .preview-card,
  .log-card{
    padding:16px;
    border-radius:22px;
  }

  .hero-copy h1{
    max-width:100%;
  }
}