html {
  font-size: var(--font-size);
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-base);
  font-size: var(--text-md);
  line-height: var(--line-height);
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-text);
}

p { color: var(--color-text-muted); }
p + p { margin-top: var(--space-2); }

a:hover { opacity: 0.85; }
a:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

strong { color: var(--color-text); font-weight: 600; }

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-2);
  padding: var(--space-1) var(--space-2);
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 9999;
  transition: top var(--transition-fast);
}
.skip-link:focus { top: var(--space-2); }

/* Animações */
@keyframes spin {
  to { transform: rotate(360deg); }
}
.spin { animation: spin 1s linear infinite; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeIn 0.5s ease forwards; }

@keyframes float1 {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}
@keyframes float2 {
  0%, 100% { transform: translateY(-8px); }
  50%       { transform: translateY(8px); }
}