/**
 * ===============================================================================
 * ARQUIVO: app/static/css/base.css
 * CAMADA: Estilização / Base global
 * PAPEL NO SISTEMA:
 *   - Ajustes globais sobre o Pico CSS: fundo, suavização de fonte, seleção,
 *     foco acessível, barras de rolagem discretas e utilitários (.sr-only, .icon).
 *   - Respeita "prefers-reduced-motion" desativando animações não essenciais.
 * ===============================================================================
 */

html {
  color-scheme: dark;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-feature-settings: "cv11", "ss01", "tnum" 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
}

::selection {
  background: var(--accent-soft);
  color: var(--text-strong);
}

:focus-visible {
  outline: 2px solid var(--accent-line);
  outline-offset: 2px;
}

/* Barras de rolagem discretas */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb {
  background: var(--border);
  border: 3px solid var(--bg);
  border-radius: 999px;
}
*::-webkit-scrollbar-thumb:hover { background: var(--border-strong); }

/* Ícones SVG inline */
.icon {
  width: 1em;
  height: 1em;
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
}

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

kbd {
  font-family: var(--mono);
  font-size: 0.7rem;
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--faint);
  box-shadow: none;
}

code {
  font-family: var(--mono);
}

[hidden] {
  display: none !important;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fade {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes shimmer {
  from { background-position: -200% 0; }
  to   { background-position: 200% 0; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@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;
  }
}