/* =========================================================
   Layout — header, hero e footer
   ========================================================= */
main,
.site-header,
.site-footer {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 16px;
}
.site-header::before {
  content: "";
  position: absolute;
  inset: 0 -100vmax;
  background: color-mix(in srgb, var(--ink) 82%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  z-index: -1;
}

.logo {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 22px;
  text-decoration: none;
  letter-spacing: -.01em;
}
.logo b { color: var(--yellow); }
.logo i { font-style: normal; color: var(--blue); }

.site-nav { display: flex; gap: 22px; font-size: 14px; }
.site-nav a { text-decoration: none; color: var(--muted); }
.site-nav a:hover { color: var(--fg); }

/* Hero */
.hero { padding-block: 56px 32px; display: grid; gap: 36px; }
.hero-top {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 32px;
  align-items: end;
}
.hero h1 {
  font-size: clamp(40px, 7vw, 84px);
  font-weight: 700;
  letter-spacing: -.02em;
}
.hero h1 .y { color: var(--yellow); }
.hero h1 .b { color: var(--blue); }
.hero p { color: var(--muted); max-width: 52ch; margin: 0 0 18px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--muted);
  font-size: 13px;
}
.site-footer b { color: var(--fg); }

/* Responsivo */
@media (max-width: 860px) {
  .hero-top { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .site-nav { display: none; }
}