:root{
  --bg0:#04070b;
  --bg1:#07111c;
  --cyan:#27f6ff;
  --magenta:#ff3df0;
  --lime:#a7ff3d;
  --text:#e6f2ff;
  --muted:rgba(230,242,255,.72);
  --card:rgba(10,18,28,.65);
  --card2:rgba(10,18,28,.38);
  --stroke:rgba(39,246,255,.22);
  --shadow:0 18px 60px rgba(0,0,0,.55);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,"Noto Sans","Liberation Sans",sans-serif;
  color:var(--text);
  background:
    radial-gradient(1200px 800px at 20% 10%, rgba(39,246,255,.12), transparent 65%),
    radial-gradient(900px 600px at 80% 25%, rgba(255,61,240,.10), transparent 60%),
    radial-gradient(900px 700px at 60% 90%, rgba(167,255,61,.08), transparent 60%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  overflow-x:hidden;
}

/* Canvas do efeito "matrix" */
#matrix{
  position:fixed;
  inset:0;
  width:100vw;
  height:100vh;
  z-index:0;
  opacity:.55;
  filter:contrast(1.15) saturate(1.1);
}

/* Scanlines discretas */
.scanlines{
  position:fixed;
  inset:0;
  z-index:1;
  pointer-events:none;
  background:repeating-linear-gradient(
    to bottom,
    rgba(255,255,255,.04) 0px,
    rgba(255,255,255,.04) 1px,
    rgba(0,0,0,0) 3px,
    rgba(0,0,0,0) 6px
  );
  mix-blend-mode:overlay;
  opacity:.16;
}

.vignette{
  position:fixed;
  inset:-2px;
  z-index:2;
  pointer-events:none;
  background:radial-gradient(circle at 50% 40%, rgba(0,0,0,0) 30%, rgba(0,0,0,.6) 100%);
}

.wrap{
  position:relative;
  z-index:3;
  min-height:100vh;
  display:flex;
  flex-direction:column;
  align-items:center;
  padding: clamp(18px, 3vw, 36px);
}

.header{
  width:min(980px, 100%);
  margin-top: clamp(8px, 2vw, 18px);
  display:flex;
  flex-direction:column;
  gap:10px;
}

.badge{
  width:56px;
  height:56px;
  display:grid;
  place-items:center;
  border-radius:16px;
  background:
    radial-gradient(65% 65% at 30% 30%, rgba(39,246,255,.35), transparent 55%),
    radial-gradient(65% 65% at 70% 70%, rgba(255,61,240,.28), transparent 55%),
    rgba(5,10,16,.55);
  border:1px solid rgba(39,246,255,.28);
  box-shadow: 0 0 0 1px rgba(255,61,240,.12) inset, var(--shadow);
  letter-spacing:.18em;
  font-weight:700;
  color:rgba(230,242,255,.92);
  text-shadow: 0 0 12px rgba(39,246,255,.45);
}

h1{
  margin:0;
  font-size: clamp(26px, 3.1vw, 44px);
  line-height:1.05;
  letter-spacing:-0.02em;
  text-shadow:
    0 0 18px rgba(39,246,255,.25),
    0 0 22px rgba(255,61,240,.12);
}

.subtitle{
  margin:0;
  color:var(--muted);
  max-width: 62ch;
}

.main{
  width:min(980px, 100%);
  margin-top: clamp(16px, 3vw, 28px);
  flex:1;
  display:flex;
}

.card{
  width:100%;
  border-radius:24px;
  background: linear-gradient(180deg, var(--card), var(--card2));
  border:1px solid rgba(39,246,255,.22);
  box-shadow: 0 0 0 1px rgba(255,61,240,.10) inset, var(--shadow);
  overflow:hidden;
  backdrop-filter: blur(10px);
}

.card-top{
  display:flex;
  align-items:center;
  gap:10px;
  padding:12px 16px;
  border-bottom:1px solid rgba(39,246,255,.18);
  background: rgba(2,6,10,.35);
}

.dot{width:10px;height:10px;border-radius:50%}
.dot-cyan{background:rgba(39,246,255,.95); box-shadow:0 0 12px rgba(39,246,255,.6)}
.dot-magenta{background:rgba(255,61,240,.95); box-shadow:0 0 12px rgba(255,61,240,.55)}
.dot-lime{background:rgba(167,255,61,.95); box-shadow:0 0 12px rgba(167,255,61,.45)}

.card-title{
  margin-left:6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 13px;
  color: rgba(230,242,255,.78);
  letter-spacing: .02em;
}

.video-shell{
  padding: clamp(12px, 2vw, 18px);
}

.video{
  width:100%;
  height:auto;
  border-radius:18px;
  border:1px solid rgba(39,246,255,.18);
  box-shadow: 0 0 0 1px rgba(255,61,240,.08) inset;
  background: rgba(0,0,0,.25);
}

.hint{
  padding: 0 18px 18px 18px;
  color: rgba(230,242,255,.70);
  font-size: 14px;
}

.footer{
  width:min(980px, 100%);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:14px;
  padding: 18px 2px 8px;
  color: rgba(230,242,255,.60);
  font-size: 13px;
}

.footer .sep{opacity:.35}

.footer-link{
  color: rgba(39,246,255,.88);
  text-decoration:none;
  border-bottom:1px dashed rgba(39,246,255,.35);
}
.footer-link:hover{filter:brightness(1.05)}

/* Responsivo */
@media (max-width:520px){
  .footer{flex-direction:column; align-items:flex-start}
}

/* Preferência por reduzir movimento */
@media (prefers-reduced-motion: reduce){
  #matrix{display:none}
  .scanlines{opacity:.10}
}