/* ==========================================================================
   Base — Reset + Global Styles
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-h6);
  font-weight: var(--font-normal);
  line-height: var(--leading-normal);
  color: var(--color-fg);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}

@media (max-width: 767px) {
  body.home {
    background-color: var(--color-bg);
  }
}

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

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

ul,
ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-neutral-900);
}

h1 { font-size: var(--text-h3); }
h2 { font-size: var(--text-h4); }
h3 { font-size: var(--text-h5); }
h4 { font-size: var(--text-h5); }
h5 { font-size: var(--text-h6); }
h6 { font-size: var(--text-p); }

@media (min-width: 768px) {
  h1 { font-size: var(--text-h1); }
  h2 { font-size: var(--text-h3); }
  h3 { font-size: var(--text-h4); }
  h4 { font-size: var(--text-h5); }
}

p, h1, h2, h3, h4, h5, h6, li, span, blockquote {
  text-wrap: pretty;
}

p {
  margin-bottom: var(--space-4);
}

p:last-child {
  margin-bottom: 0;
}

/* --- Utilities --- */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* Full-bleed: sem max-width, colado nas bordas da viewport.
   O padding lateral é ajustável por componente via --container-fluid-padding. */
.container--fluid {
  max-width: none;
}

@media (min-width: 1024px) {
  .container--fluid {
    padding-inline: var(--container-fluid-padding, var(--space-10));
  }
}

/* --- Header protection ---
   O header absoluto sempre flutua sobre um painel protegido:
   menu claro usa painel escuro; menu escuro usa painel claro. */

.header-protection {
  position: relative;
  margin: var(--page-frame);
  border-radius: var(--radius-2xl);
  overflow: hidden;
}

.header-protection--dark {
  color: var(--color-dark-fg);
  background: var(--gradient-surface);
}

.header-protection--dark::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background-image: var(--texture-noise);
  mix-blend-mode: overlay;
  opacity: 0.2;
  pointer-events: none;
}

.header-protection--light {
  color: var(--color-fg);
  background: #fff;
  border: 1px solid rgba(5, 5, 5, 0.04);
  box-shadow: 0 1rem 3rem rgba(5, 5, 5, 0.035);
}

.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;
}

/* --- Transição entre páginas ---
   O header não se move: ele tem view-transition-name próprio, então fica
   ancorado enquanto só o conteúdo faz um crossfade curto. É a permanência
   dele que diz "você continua no mesmo lugar". */

@view-transition {
  navigation: auto;
}

.site-header {
  view-transition-name: site-header;
}

::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 0.3s;
}

::view-transition-group(site-header) {
  animation-duration: 0.3s;
}

@media (prefers-reduced-motion: reduce) {
  ::view-transition-group(*),
  ::view-transition-old(*),
  ::view-transition-new(*) {
    animation: none;
  }
}

/* --- Reveal on scroll ---
   Marque o elemento com data-reveal (e opcionalmente --reveal-delay).
   O estado escondido só vale com .reveal-ready, que o reveal.js adiciona:
   sem JS, tudo permanece visível. */

.reveal-ready {
  opacity: 0;
  transform: translateY(1.25rem);
}

.reveal-ready.is-visible {
  opacity: 1;
  transform: none;
  transition:
    opacity 0.8s var(--ease-out) var(--reveal-delay, 0s),
    transform 0.8s var(--ease-out) var(--reveal-delay, 0s);
}

@media (prefers-reduced-motion: reduce) {
  .reveal-ready {
    opacity: 1;
    transform: none;
    transition: none;
  }
}