* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg: #0a0e1a;
  --bg-2: #0f1523;
  --tx: #f0f4ff;
  --tx-2: #a3b1ce;
  --tx-3: #6b7794;
  --azul: #4c8bff;
  --ciano: #00e5ff;
  --borda: rgba(76, 139, 255, 0.15);
}
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--tx);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  background-image: radial-gradient(circle at 20% 10%, rgba(76,139,255,0.1) 0%, transparent 40%);
}
.nav {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(10, 14, 26, 0.7);
  border-bottom: 1px solid var(--borda);
}
.nav-inner {
  max-width: 900px; margin: 0 auto;
  padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.marca { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--tx); }
.marca img {
  width: 36px; height: 36px; border-radius: 50%;
  box-shadow: 0 0 15px rgba(0, 229, 255, 0.4);
}
.marca strong { font-size: 14px; }
.nav-back {
  color: var(--ciano); text-decoration: none; font-size: 13px;
  padding: 8px 16px; border-radius: 20px;
  border: 1px solid rgba(0, 229, 255, 0.3);
}
.nav-back:hover { background: rgba(0, 229, 255, 0.1); }

main {
  max-width: 900px; margin: 0 auto;
  padding: 60px 24px 100px;
}
h1 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--ciano), var(--azul));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.data {
  color: var(--tx-3); font-size: 13px; margin-bottom: 40px;
  padding-bottom: 20px; border-bottom: 1px solid var(--borda);
}
h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 40px 0 16px;
  color: var(--tx);
  letter-spacing: -0.3px;
}
h3 {
  font-size: 17px;
  font-weight: 700;
  margin: 24px 0 10px;
  color: var(--ciano);
}
p, li {
  color: var(--tx-2); font-size: 15px; margin-bottom: 12px;
}
ul, ol { padding-left: 24px; margin-bottom: 16px; }
li { margin-bottom: 6px; }
strong { color: var(--tx); }
a { color: var(--ciano); }
.destaque {
  background: rgba(76, 139, 255, 0.06);
  border: 1px solid var(--borda);
  border-left: 3px solid var(--ciano);
  border-radius: 8px;
  padding: 16px 20px;
  margin: 20px 0;
}
.placeholder {
  background: rgba(255, 51, 85, 0.08);
  border: 1px dashed rgba(255, 51, 85, 0.4);
  border-radius: 6px;
  padding: 12px 16px;
  color: #ff8899;
  font-size: 13px;
  font-family: monospace;
  margin: 12px 0;
}
footer {
  padding: 40px 24px;
  border-top: 1px solid var(--borda);
  text-align: center;
  color: var(--tx-3); font-size: 12px;
}