/* ============================================================
   BASE — reset moderno, tipografia e acessibilidade
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  /* Compensa o header fixo ao pular por âncora */
  scroll-padding-top: calc(var(--header-h) + var(--sp-6));
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  min-height: 100svh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-relaxed);
  font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background-color var(--dur) var(--ease-in-out),
    color var(--dur) var(--ease-in-out);
}

/* Trava o scroll com menu/preloader aberto sem "pular" o layout */
body.is-locked {
  overflow: hidden;
}

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

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--lh-snug);
  letter-spacing: var(--ls-title);
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

::selection {
  background: var(--selection-bg);
  color: var(--text);
}

/* ---------- Foco visível: obrigatório, não negociável ---------- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

:focus:not(:focus-visible) {
  outline: none;
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: var(--r-full);
  border: 3px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

/* ---------- 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: 0;
}

.skip-link {
  position: fixed;
  top: var(--sp-4);
  left: var(--sp-4);
  z-index: 200;
  padding: var(--sp-3) var(--sp-5);
  background: var(--accent);
  color: #fff;
  border-radius: var(--r-full);
  font-size: var(--fs-sm);
  font-weight: 600;
  transform: translateY(-200%);
  transition: transform var(--dur-fast) var(--ease-out-back);
}
.skip-link:focus-visible {
  transform: translateY(0);
}

.sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.accent {
  color: var(--accent);
}

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

/* ---------- Texto de apoio recorrente ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--text-muted);
}

.lead {
  font-size: var(--fs-md);
  color: var(--text-muted);
  line-height: var(--lh-relaxed);
  max-width: 58ch;
}

/* ---------- Ruído global: tira o aspecto "plástico" ---------- */
.grain {
  position: fixed;
  inset: -50%;
  z-index: 2;
  pointer-events: none;
  opacity: var(--noise-opacity);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 8s steps(10) infinite;
}

@keyframes grain {
  0%, 100% { transform: translate(0, 0); }
  10% { transform: translate(-2%, -3%); }
  20% { transform: translate(-4%, 2%); }
  30% { transform: translate(2%, -4%); }
  40% { transform: translate(-1%, 3%); }
  50% { transform: translate(-3%, 1%); }
  60% { transform: translate(3%, 0); }
  70% { transform: translate(0, 2%); }
  80% { transform: translate(1%, -1%); }
  90% { transform: translate(-2%, 2%); }
}

@media (prefers-reduced-motion: reduce) {
  .grain {
    animation: none;
  }
}