/* 📖 base.css — Reset, tipografia base e utilitários globais
   ⚠️  Alterar? Depende de tokens.css (importado antes) */

/* ─── Reset ─── */

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--color-bg-muted) var(--color-bg-base);
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--font-normal);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ─── Tipografia base ─── */

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text-primary);
}

p {
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover {
  color: var(--color-primary-200);
}

strong, b {
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
}

em { font-style: italic; }

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--color-bg-subtle);
  padding: 0.1em 0.4em;
  border-radius: var(--radius-sm);
  color: var(--color-primary-300);
}

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

ul, ol { list-style: none; }

/* ─── Scrollbar personalizada (webkit) ─── */

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg-base); }
::-webkit-scrollbar-thumb {
  background: var(--color-bg-muted);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--color-text-muted); }

/* ─── Seleção de texto ─── */

::selection {
  background: var(--color-accent-glow);
  color: var(--color-text-primary);
}

/* ─── Focus visível (acessibilidade) ─── */

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

/* ─── Utilitários ─── */

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

.text-gradient {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-muted { color: var(--color-text-secondary); }
.text-subtle { color: var(--color-text-muted); }
.text-accent { color: var(--color-accent); }
.text-success { color: var(--color-success); }

.hidden { display: none !important; }
.invisible { visibility: hidden; }

/* ─── Motion reduzido ─── */

@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;
  }
}