/* Reset, acessibilidade e utilitários comuns a todos os sites. */

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem; /* âncoras não ficam escondidas sob o cabeçalho fixo */
  interpolate-size: allow-keywords;
}

body {
  min-height: 100dvh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, picture, video, svg { display: block; max-width: 100%; height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }
input:not([type="checkbox"], [type="radio"], [type="hidden"]), select, textarea { min-height: var(--touch-min); }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  text-wrap: balance;
}
p { text-wrap: pretty; }
a { color: inherit; text-underline-offset: 0.2em; }

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -100%;
  z-index: var(--z-toast);
  padding: var(--space-2) var(--space-4);
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: var(--radius-sm);
}
.skip-link:focus { top: var(--space-4); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.container {
  width: min(100% - 2 * var(--container-padding), var(--container-max));
  margin-inline: auto;
}

.secao { padding-block: var(--space-16); }
@media (min-width: 768px) {
  .secao { padding-block: var(--space-24); }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: var(--touch-min);
  padding: var(--space-3) var(--space-6);
  border: 1px solid transparent;
  border-radius: var(--radius-btn);
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color var(--duration-small) var(--ease-out),
    border-color var(--duration-small) var(--ease-out),
    color var(--duration-small) var(--ease-out);
}
.btn svg { width: 20px; height: 20px; flex-shrink: 0; }
.btn--primario { background: var(--color-accent); color: var(--color-on-accent); }
.btn--primario:hover { background: var(--color-accent-hover); }
.btn--secundario { border-color: currentColor; background: transparent; }

/* Cabeçalho fixo: marca e contato sempre à mão no celular, no lugar do botão flutuante (AS-45) */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 4rem;
}
.marca {
  display: inline-flex;
  align-items: center;
  min-height: var(--touch-min);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  text-decoration: none;
}

.site-footer {
  padding-block: var(--space-12);
  background: var(--color-bg-alt);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* Crédito discreto do desenvolvedor, no canto do rodapé (todo site, exceto o space) */
.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2) var(--space-6);
}
.credito { font-size: var(--text-xs); }

/* Link fora de texto corrido (rede social, e-mail, telefone): ícone + texto, sem sublinhado solto (AS-47) */
.link-icone {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: var(--touch-min);
  font-weight: 600;
  text-decoration: none;
}
.link-icone svg { width: 20px; height: 20px; flex-shrink: 0; }
.link-icone:hover span { text-decoration: underline; text-underline-offset: 0.2em; }

@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;
  }
}