/* ConectaTrans — estilos base (Bloco 5 §7.3–§7.8)
   Acessibilidade é piso, não camada final: foco visível, alvos de 44px,
   contraste AA, respeito a prefers-reduced-motion. */

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;          /* nunca abaixo disso em tela de conteúdo */
  line-height: 1.6;
}

/* --- tipografia --- */

h1, h2, h3 { font-family: var(--font-display); line-height: 1.2; margin: 0 0 var(--space-4); }
h1 { font-size: 2rem; font-weight: 700; }
h2 { font-size: 1.5625rem; font-weight: 600; }
h3 { font-size: 1.25rem; font-weight: 600; }
p  { margin: 0 0 var(--space-4); max-width: 70ch; }  /* largura de leitura */

a { color: var(--brand-violet-deep); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--brand-violet); }

.muted { color: var(--muted); }
.small { font-size: .875rem; }

/* --- acessibilidade --- */

.skip-link {
  position: absolute; left: var(--space-4); top: -100px;
  background: var(--brand-violet); color: #fff;
  padding: var(--space-3) var(--space-4); border-radius: var(--radius-sm);
  z-index: 100; transition: top .15s ease;
}
.skip-link:focus { top: var(--space-4); color: #fff; }

:focus-visible {
  outline: 2px solid var(--brand-violet);
  outline-offset: 2px;
  border-radius: 2px;
}

.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;
}

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

/* --- layout --- */

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--space-4); }
@media (min-width: 768px) { .container { padding-inline: var(--space-6); } }

.page { padding-block: var(--space-12); }

/* A "ponte": traço-assinatura em gradiente azul→rosa. Elemento gráfico —
   nunca carrega texto por cima. */
.ponte { height: 4px; background: var(--gradient-ponte); border: 0; margin: 0; }

/* --- cabeçalho e rodapé --- */

.site-header { background: var(--surface); border-bottom: 1px solid var(--line); }
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-4); min-height: 64px; flex-wrap: wrap;
}
.marca {
  font-family: var(--font-display); font-weight: 700; font-size: 1.25rem;
  color: var(--brand-violet-deep); text-decoration: none; padding-block: var(--space-2);
}
.marca .marca-trans { color: var(--brand-violet); }
.nav { display: flex; align-items: center; gap: var(--space-2); flex-wrap: wrap; }

.site-footer {
  background: var(--surface); border-top: 1px solid var(--line);
  padding-block: var(--space-8); margin-top: var(--space-16);
  font-size: .875rem; color: var(--muted);
}
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--brand-violet-deep); }
.footer-links { display: flex; gap: var(--space-4); flex-wrap: wrap; margin-bottom: var(--space-4); padding: 0; list-style: none; }

/* --- botões (alvo mínimo 44x44) --- */

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 44px; padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md); border: 2px solid transparent;
  font-family: var(--font-body); font-size: 1rem; font-weight: 700;
  text-decoration: none; cursor: pointer; transition: background-color .15s ease, color .15s ease;
}
.btn-primario { background: var(--brand-violet); color: #fff; }
.btn-primario:hover { background: var(--brand-violet-deep); color: #fff; }
.btn-secundario { border-color: var(--brand-violet); color: var(--brand-violet-deep); background: transparent; }
.btn-secundario:hover { background: var(--brand-violet-soft); color: var(--brand-violet-deep); }
.btn-fantasma { color: var(--brand-violet-deep); background: transparent; padding-inline: var(--space-3); }
.btn-fantasma:hover { background: var(--brand-violet-soft); }

/* --- superfícies --- */

.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: var(--space-6); box-shadow: var(--shadow-1);
}

.chip {
  display: inline-block; background: var(--brand-violet-soft); color: var(--brand-violet-deep);
  border-radius: 999px; padding: var(--space-1) var(--space-3); font-size: .8125rem; font-weight: 700;
}

/* --- hero da landing --- */

.hero { padding-block: var(--space-16) var(--space-12); }
.hero h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); margin-bottom: var(--space-6); }
.hero .lead { font-size: 1.125rem; color: var(--muted); max-width: 60ch; }
.hero-acoes { display: flex; gap: var(--space-4); flex-wrap: wrap; margin-top: var(--space-8); }

.grid { display: grid; gap: var(--space-6); }
@media (min-width: 768px) { .grid-2 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(3, 1fr); } }

.secao { padding-block: var(--space-12); }
.secao > h2 { margin-bottom: var(--space-8); }

/* --- aviso / estado --- */

.aviso {
  border-left: 4px solid var(--brand-violet); background: var(--brand-violet-soft);
  padding: var(--space-4) var(--space-6); border-radius: var(--radius-sm);
}
.aviso-atencao { border-left-color: var(--warning); background: #FDF6E3; }