*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--color-ink);
  font-family: var(--font-body);
  font-weight: 200;
  background:
    radial-gradient(circle at top left, rgba(255, 230, 109, 0.42), transparent 34rem),
    radial-gradient(circle at 82% 18%, rgba(105, 210, 255, 0.42), transparent 30rem),
    linear-gradient(135deg, #fff7dd 0%, #e7f9ff 48%, #fff1f5 100%);
}

body.dark {
  background:
    radial-gradient(circle at top left, rgba(139, 92, 246, 0.24), transparent 34rem),
    radial-gradient(circle at 82% 18%, rgba(105, 210, 255, 0.2), transparent 30rem),
    linear-gradient(135deg, #15192b 0%, #1b2541 52%, #281b34 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

strong,
b,
button,
select,
.btn,
.brand,
.nav-links a,
.badge {
  font-weight: 500;
}

button {
  cursor: pointer;
}

img,
svg {
  max-width: 100%;
}

.sr-only {
  clip: rect(0, 0, 0, 0);
  border: 0;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
}

:focus-visible {
  outline: 4px solid rgba(255, 122, 144, 0.55);
  outline-offset: 3px;
}

.shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.page {
  min-height: 100vh;
}

.section {
  padding: var(--space-5) 0;
}

.section-title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 0.96;
}

.muted {
  color: var(--color-muted);
}

/* Skip link - acessibilidade */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  padding: 0.75rem 1.5rem;
  background: var(--color-ink);
  color: #fff;
  border-radius: 0 0 0.5rem 0.5rem;
  font-weight: 500;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 0;
}

/* Footer credits */
.footer-credits {
  font-size: 0.75rem;
  color: var(--color-muted);
  margin: 0.5rem 0 0;
}
.footer-credits a {
  text-decoration: underline;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Auto dark mode */
@media (prefers-color-scheme: dark) {
  body:not(.light) {
    background:
      radial-gradient(circle at top left, rgba(139, 92, 246, 0.24), transparent 34rem),
      radial-gradient(circle at 82% 18%, rgba(105, 210, 255, 0.2), transparent 30rem),
      linear-gradient(135deg, #15192b 0%, #1b2541 52%, #281b34 100%);
    color: var(--color-ink-dark, #e0e0e0);
  }
}