/* ============================================================
   base.css — reset, tipografia e utilitários fundamentais
   ============================================================ */

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

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.55;
  color: var(--text);
  background-color: var(--bg-app);
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--transition), color var(--transition);
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  color: var(--text-strong);
  margin: 0 0 var(--sp-3);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h1 { font-size: var(--fs-2xl); }
h2 { font-size: var(--fs-xl); }
h3 { font-size: var(--fs-lg); }

p { margin: 0 0 var(--sp-3); }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* Scrollbar discreta */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: var(--radius-pill);
  border: 2px solid transparent;
  background-clip: content-box;
}
::-webkit-scrollbar-thumb:hover { background: var(--gray-400); background-clip: content-box; }

/* Foco visível (acessibilidade) */
:focus-visible {
  outline: 2px solid var(--brand-petrol-400);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Respeito a redução de movimento */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

/* Utilitários */
.text-muted-2 { color: var(--text-muted); }
.text-mono { font-variant-numeric: tabular-nums; }
.hidden { display: none !important; }
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }

/* Animações reutilizáveis */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.anim-in { animation: fadeInUp 320ms cubic-bezier(0.4, 0, 0.2, 1) both; }