/*
  BASE — reset, elementos globais, utilitários e grid de container.
  Nada específico de componente ou seção deve entrar aqui.
*/

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  color: var(--color-ink-strong);
  line-height: var(--lh-heading);
  margin: 0;
}

h1 { font-size: var(--fs-h1); line-height: var(--lh-tight); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

p {
  margin: 0;
}

a {
  color: var(--color-primary);
  text-decoration-color: currentColor;
}

a:hover {
  color: var(--color-primary-hover);
}

a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

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

button {
  font-family: inherit;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

/* ---------- Layout helpers ---------- */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

@media (min-width: 900px) {
  .container {
    --container-pad: 56px;
  }
}

.section {
  padding-block: var(--space-xl);
}

@media (min-width: 900px) {
  .section {
    padding-block: var(--space-3xl);
  }
}

.section--tight {
  padding-block: var(--space-lg);
}

@media (min-width: 900px) {
  .section--tight {
    padding-block: var(--space-2xl);
  }
}

.section--soft {
  background: var(--color-bg-soft);
}

.section--dark {
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
}

.text-center {
  text-align: center;
}

.eyebrow {
  display: block;
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: var(--space-sm);
  top: -60px;
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-sm);
  z-index: 100;
  transition: top var(--duration-fast) var(--ease-out);
}

.skip-link:focus {
  top: var(--space-sm);
  color: #fff;
}