/*
  Base do site — reset, tipografia, grid e componentes reutilizáveis
  (botões, cards, callouts) construídos sobre os tokens de assets/css/tokens.css.
  Segue design-system-observatorio-recife.md: editorial, institucional,
  plano (sem sombras grandes, sem gradiente, sem glassmorphism).
*/

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-background);
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

ul, ol {
  padding-left: 1.25em;
}

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

/* ---------- Tipografia ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  color: var(--color-text);
  margin: 0 0 0.6em;
}

h1 { font-size: var(--text-h1); line-height: 1.0; }
h2 { font-size: var(--text-h2); line-height: 1.05; }
h3 { font-size: var(--text-h3); line-height: 1.1; }
h4 { font-size: var(--text-h4); line-height: 1.2; }

p {
  margin: 0 0 1em;
}

p:last-child {
  margin-bottom: 0;
}

.lead {
  font-size: var(--text-lead);
  line-height: 1.5;
}

blockquote {
  margin: 0;
  font-family: var(--font-body);
  font-style: italic;
  font-size: var(--text-lead);
  color: var(--color-text);
}

/* Links dentro de texto corrido (fora de botões, cards e navegação) */
main :not(.botao):not(.cabecalho__nav) > a:not(.card):not(.botao) {
  color: var(--color-brand);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

main :not(.botao):not(.cabecalho__nav) > a:not(.card):not(.botao):hover {
  color: var(--color-success);
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container-lg);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-6);
  }
}

.secao {
  padding: var(--space-8) 0;
}

@media (min-width: 1024px) {
  .secao {
    padding: var(--space-10) 0;
  }
}

.secao--branca {
  background: var(--color-white);
}

.secao--menta {
  background: var(--color-background-secondary);
}

.secao--escura {
  background: var(--color-secao-escura);
  color: var(--color-white);
}

.secao--escura h1,
.secao--escura h2,
.secao--escura h3,
.secao--escura h4 {
  color: var(--color-white);
}

.grid {
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 768px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* ---------- Botões ---------- */
.botao {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  min-height: 44px;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-body);
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.botao--preenchido {
  background: var(--color-brand);
  color: var(--color-white);
}

.botao--preenchido:hover,
.botao--preenchido:focus-visible {
  background: var(--color-info);
  color: var(--color-text);
}

.botao--outline {
  background: transparent;
  color: var(--color-brand);
  border-color: var(--color-brand);
}

.botao--outline:hover,
.botao--outline:focus-visible {
  background: var(--color-info);
  border-color: var(--color-info);
  color: var(--color-text);
}

/* ---------- Cards ---------- */
.card {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: border-color 0.2s ease;
}

.card--destaque {
  background: var(--color-brand);
  border-color: var(--color-brand);
  color: var(--color-brand-foreground);
}

.card--destaque h3,
.card--destaque h4 {
  color: var(--color-brand-foreground);
}

.card--branco {
  background: var(--color-white);
}

/* Todo card ganha destaque na cor secundária (dado/informação) ao passar o mouse */
.card:hover,
.card:focus-visible {
  border-color: var(--color-info);
}

/* ---------- Callouts (caixas de contexto/alerta) ---------- */
.callout {
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  color: var(--color-text);
  transition: border-color 0.2s ease;
}

.callout--info {
  background: var(--color-info-light);
}

.callout--alerta {
  background: var(--color-risk-medium);
}

.callout:hover {
  border-color: var(--color-info);
}

/* ---------- Utilitários ---------- */
.texto-centro { text-align: center; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}