/* ============================================
   Setup Page — Premium Streaming UI
   ============================================ */

:root{
  --su-bg:#06080f;
  --su-bg-2:#0a0f1c;
  --su-surface:rgba(255,255,255,.04);
  --su-surface-2:rgba(255,255,255,.06);
  --su-border:rgba(255,255,255,.08);
  --su-border-strong:rgba(255,255,255,.16);
  --su-text:#f5f7fb;
  --su-dim:#9aa4b8;
  --su-accent:#10e88a;
  --su-accent-2:#22c55e;
  --su-violet:#7c5cff;
  --su-cyan:#22d3ee;
  --su-glow:0 0 0 1px rgba(16,232,138,.25), 0 20px 60px -20px rgba(16,232,138,.35);
}

/* Hero */
.su-hero{
  position:relative;
  padding:120px 0 80px;
  overflow:hidden;
  background:radial-gradient(1200px 600px at 20% 0%,rgba(124,92,255,.18),transparent 60%),
             radial-gradient(900px 500px at 90% 10%,rgba(16,232,138,.14),transparent 60%),
             linear-gradient(180deg,#05070d 0%,#06080f 100%);
}
.su-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse at center,#000 0%,transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at center,#000 0%,transparent 70%);
  pointer-events:none;
}
.su-hero .container{position:relative;z-index:2;text-align:center}
.su-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;
  background:rgba(16,232,138,.08);
  border:1px solid rgba(16,232,138,.25);
  color:var(--su-accent);font-size:13px;font-weight:600;letter-spacing:.04em;
  text-transform:uppercase;margin-bottom:24px;
}
.su-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--su-accent);box-shadow:0 0 12px var(--su-accent);animation:suPulse 2s infinite}
@keyframes suPulse{50%{opacity:.4}}
.su-hero h1{
  font-family:'Sora',sans-serif;font-weight:800;
  font-size:clamp(2.2rem,5vw,4.2rem);line-height:1.05;letter-spacing:-.02em;
  color:var(--su-text);margin-bottom:20px;
}
.su-hero h1 .grad{
  background:linear-gradient(135deg,var(--su-accent) 0%,var(--su-cyan) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.su-hero .lede{
  max-width:680px;margin:0 auto 32px;
  color:var(--su-dim);font-size:1.125rem;line-height:1.6;
}
.su-hero-stats{
  display:flex;flex-wrap:wrap;justify-content:center;gap:16px;margin-top:32px;
}
.su-stat{
  display:flex;align-items:center;gap:10px;
  padding:12px 20px;border-radius:14px;
  background:var(--su-surface);border:1px solid var(--su-border);
  color:var(--su-text);font-size:14px;font-weight:500;
}
.su-stat svg{width:18px;height:18px;color:var(--su-accent);flex-shrink:0}

/* Device tabs */
.su-tabs-wrap{
  position:sticky;top:64px;z-index:30;
  padding:16px 0;
  background:rgba(6,8,15,.85);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid var(--su-border);
}
.su-tabs{
  display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;
  padding:4px;
}
.su-tabs::-webkit-scrollbar{display:none}
.su-tab{
  flex-shrink:0;display:inline-flex;align-items:center;gap:10px;
  padding:12px 20px;border-radius:14px;
  background:var(--su-surface);border:1px solid var(--su-border);
  color:var(--su-dim);font-weight:600;font-size:14px;
  cursor:pointer;transition:all .25s ease;white-space:nowrap;
}
.su-tab svg{width:18px;height:18px}
.su-tab:hover{color:var(--su-text);border-color:var(--su-border-strong);background:var(--su-surface-2)}
.su-tab.is-active{
  color:#04130a;background:linear-gradient(135deg,var(--su-accent),var(--su-accent-2));
  border-color:transparent;box-shadow:var(--su-glow);
}

/* Device sections */
.su-device{
  padding:96px 0;
  scroll-margin-top:140px;
  position:relative;
}
.su-device + .su-device{border-top:1px solid var(--su-border)}
.su-device-head{
  display:grid;grid-template-columns:1fr;gap:24px;
  max-width:880px;margin:0 auto 56px;text-align:center;
}
.su-device-icon{
  width:72px;height:72px;margin:0 auto;
  display:grid;place-items:center;border-radius:20px;
  background:linear-gradient(135deg,rgba(16,232,138,.15),rgba(124,92,255,.15));
  border:1px solid var(--su-border-strong);
  color:var(--su-accent);
  box-shadow:0 20px 50px -20px rgba(16,232,138,.4);
}
.su-device-icon svg{width:36px;height:36px}
.su-device h2{
  font-family:'Sora',sans-serif;font-weight:800;
  font-size:clamp(1.8rem,3.5vw,2.75rem);
  letter-spacing:-.02em;color:var(--su-text);
}
.su-device h2 small{
  display:block;font-size:14px;font-weight:600;letter-spacing:.16em;
  text-transform:uppercase;color:var(--su-accent);margin-bottom:10px;font-family:'Inter',sans-serif;
}
.su-device-sub{color:var(--su-dim);font-size:1.05rem;line-height:1.6}

/* Step cards */
.su-steps{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:20px;
}
.su-step{
  position:relative;padding:28px 24px;border-radius:20px;
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.02));
  border:1px solid var(--su-border);
  transition:transform .35s ease,border-color .35s ease,box-shadow .35s ease;
  overflow:hidden;
}
.su-step::before{
  content:"";position:absolute;inset:0;border-radius:20px;
  background:radial-gradient(400px 200px at var(--mx,50%) 0%,rgba(16,232,138,.12),transparent 60%);
  opacity:0;transition:opacity .35s ease;pointer-events:none;
}
.su-step:hover{
  transform:translateY(-4px);
  border-color:rgba(16,232,138,.35);
  box-shadow:0 30px 60px -30px rgba(16,232,138,.35);
}
.su-step:hover::before{opacity:1}
.su-step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(135deg,var(--su-accent),var(--su-accent-2));
  color:#04130a;font-family:'Sora',sans-serif;font-weight:800;font-size:18px;
  margin-bottom:16px;
  box-shadow:0 10px 30px -10px rgba(16,232,138,.6);
}
.su-step h3{
  font-family:'Sora',sans-serif;font-weight:700;font-size:1.15rem;
  color:var(--su-text);margin-bottom:10px;letter-spacing:-.01em;
}
.su-step p,.su-step li{color:var(--su-dim);font-size:.95rem;line-height:1.6}
.su-step ul{list-style:none;padding:0;margin:8px 0 0}
.su-step ul li{
  position:relative;padding-left:22px;margin-bottom:6px;
}
.su-step ul li::before{
  content:"";position:absolute;left:0;top:.6em;width:10px;height:10px;border-radius:50%;
  background:rgba(16,232,138,.18);border:2px solid var(--su-accent);
}
.su-step code{
  display:inline-block;padding:2px 8px;border-radius:6px;
  background:rgba(16,232,138,.1);color:var(--su-accent);
  font-family:'JetBrains Mono',ui-monospace,monospace;font-size:.85em;font-weight:600;
}

/* CTA */
.su-cta{
  position:relative;padding:96px 0;overflow:hidden;
  background:radial-gradient(800px 400px at 50% 0%,rgba(16,232,138,.18),transparent 70%),
             linear-gradient(180deg,#06080f,#0a0f1c);
  border-top:1px solid var(--su-border);
}
.su-cta-card{
  max-width:880px;margin:0 auto;text-align:center;
  padding:56px 32px;border-radius:28px;
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  border:1px solid var(--su-border-strong);
  backdrop-filter:blur(20px);
}
.su-cta h2{
  font-family:'Sora',sans-serif;font-weight:800;
  font-size:clamp(1.8rem,3.5vw,2.5rem);color:var(--su-text);
  margin-bottom:16px;letter-spacing:-.02em;
}
.su-cta p{color:var(--su-dim);font-size:1.1rem;max-width:560px;margin:0 auto 28px}
.su-cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}
.su-btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 28px;border-radius:14px;font-weight:700;font-size:15px;
  text-decoration:none;transition:all .25s ease;cursor:pointer;
}
.su-btn-primary{
  color:#04130a;background:linear-gradient(135deg,var(--su-accent),var(--su-accent-2));
  box-shadow:0 20px 40px -15px rgba(16,232,138,.6);
}
.su-btn-primary:hover{transform:translateY(-2px);box-shadow:0 25px 50px -15px rgba(16,232,138,.8)}
.su-btn-ghost{
  color:var(--su-text);background:var(--su-surface);border:1px solid var(--su-border-strong);
}
.su-btn-ghost:hover{background:var(--su-surface-2);border-color:var(--su-accent)}

/* Reveal */
[data-su-reveal]{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
[data-su-reveal].is-visible{opacity:1;transform:none}

@media (max-width:768px){
  .su-hero{padding:80px 0 56px}
  .su-device{padding:64px 0}
  .su-tabs-wrap{top:56px}
  .su-cta-card{padding:40px 20px}
}

@media (prefers-reduced-motion:reduce){
  [data-su-reveal]{opacity:1;transform:none;transition:none}
  .su-eyebrow .dot{animation:none}
}