/* ==========================================================================
   base.css — reset, tipografia, botões, .secao, utilitários
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--nav-h) + 1rem);
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: var(--fs-body);
  font-stretch: var(--normal);
  font-weight: 400;
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
h1, h2, h3, h4, p, ul, ol, dl, dd, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; padding: 0; cursor: pointer; }
strong, b { font-weight: 650; }
[hidden] { display: none !important; }

:focus-visible {
  outline: 2px solid var(--royal);
  outline-offset: 3px;
}
.secao--noite :focus-visible,
.hero :focus-visible,
.topo :focus-visible,
.rodape :focus-visible,
.chamada :focus-visible,
.faixa :focus-visible,
.menu-celular :focus-visible,
.luz :focus-visible { outline-color: var(--periwinkle); }

.sr {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}
.pular {
  position: fixed; left: var(--gutter); top: -100px; z-index: 100;
  background: var(--paper); color: var(--ink);
  padding: .75rem 1rem; font-weight: 600;
}
.pular:focus { top: .75rem; }

/* Quebras por dispositivo (corte em 640px) */
@media (max-width: 640px) { .so-pc { display: none; } }
@media (min-width: 641px) { .so-celular { display: none; } }

/* --------------------------------------------------------------------------
   Estrutura
   -------------------------------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.secao {
  position: relative;
  z-index: 1;
  padding-block: var(--section-y);
}
.secao--papel { background: var(--paper); color: var(--ink); }
.secao--nevoa { background: var(--mist); color: var(--ink); }
.secao--noite { background: var(--night); color: var(--paper); }
.secao--royal { background: var(--royal); color: var(--paper); }

.rule { height: 1px; border: 0; margin: 0; background: var(--hair); }
.secao--noite .rule { background: var(--hair-dark); }

/* --------------------------------------------------------------------------
   Tipografia
   -------------------------------------------------------------------------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .8em;
  font-size: var(--fs-label);
  font-weight: 600;
  font-stretch: var(--semi);
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  line-height: 1.3;
  color: var(--royal);
}
.eyebrow::before {
  content: "";
  flex: none;
  width: var(--square);
  height: var(--square);
  background: currentColor;
}
.eyebrow--claro { color: var(--periwinkle); }

.titulo-secao {
  font-size: var(--fs-h2);
  font-weight: 700;
  font-stretch: var(--wide);
  letter-spacing: var(--track-title);
  line-height: var(--lh-title);
  text-wrap: balance;
}
.destaque { color: var(--royal); }
.secao--noite .destaque { color: var(--periwinkle); }

.lead {
  font-size: var(--fs-lead);
  line-height: 1.55;
  color: var(--slate);
  text-wrap: pretty;
}
.lead strong { color: var(--ink); }
.lead--claro { color: var(--fog); }
.lead--claro strong { color: var(--paper); }

.rotulo {
  font-size: var(--fs-label);
  font-weight: 600;
  font-stretch: var(--semi);
  letter-spacing: var(--track-label);
  text-transform: uppercase;
  color: var(--slate);
}
.secao--noite .rotulo { color: var(--fog); }

/* Sublinhado que cresce (naocodei · CSS 09) */
.link-sub {
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0% 1px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  transition: background-size var(--t) var(--ease-out);
}
.link-sub:hover, .link-sub:focus-visible { background-size: 100% 1px; }

.link-seta {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  font-weight: 600;
  font-stretch: var(--semi);
  padding-block: .35rem;
  border-bottom: 1px solid currentColor;
}
.link-seta svg { width: 14px; height: 14px; transition: transform var(--t-fast) var(--ease); }
.link-seta:hover svg { transform: translate(3px, -3px); }

/* --------------------------------------------------------------------------
   Botões — texto à esquerda, seta num quadrado (o quadrado do símbolo)
   à direita. Hover inverte o botão e gira a seta para a direita.
   -------------------------------------------------------------------------- */
.btn {
  --btn-bg: var(--royal);
  --btn-fg: var(--paper);
  --btn-ico-bg: var(--paper);
  --btn-ico-fg: var(--royal);
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.1rem;
  min-height: 3.5rem;
  padding: .4rem .4rem .4rem 1.35rem;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border-radius: var(--radius);
  font-size: var(--fs-small);
  font-weight: 600;
  font-stretch: var(--semi);
  letter-spacing: .01em;
  line-height: 1.2;
  white-space: nowrap;
  transition: background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
  -webkit-tap-highlight-color: transparent;
}
.btn__ico {
  flex: none;
  display: grid;
  place-items: center;
  width: 2.7rem;
  height: 2.7rem;
  background: var(--btn-ico-bg);
  color: var(--btn-ico-fg);
  border-radius: var(--radius);
  transition: background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.btn__ico svg { width: 15px; height: 15px; transition: transform var(--t) var(--ease-out); }
.btn:hover, .btn:focus-visible {
  background: var(--btn-ico-bg);
  color: var(--btn-ico-fg);
  box-shadow: inset 0 0 0 1px var(--btn-ico-fg);
}
.btn:hover .btn__ico, .btn:focus-visible .btn__ico { background: var(--btn-bg); color: var(--btn-fg); }
.btn:hover .btn__ico svg, .btn:focus-visible .btn__ico svg { transform: rotate(45deg); }

.btn--light { --btn-bg: var(--paper); --btn-fg: var(--night); --btn-ico-bg: var(--royal); --btn-ico-fg: var(--paper); }
.btn--light:hover, .btn--light:focus-visible { box-shadow: inset 0 0 0 1px var(--paper); }
.btn--ghost {
  --btn-bg: transparent; --btn-fg: var(--paper); --btn-ico-bg: var(--paper); --btn-ico-fg: var(--night);
  box-shadow: inset 0 0 0 1px var(--hair-dark-strong);
}
.btn--ghost:hover, .btn--ghost:focus-visible { box-shadow: inset 0 0 0 1px var(--paper); }
.btn--ghost .btn__ico { background: var(--hair-dark); color: var(--paper); }
.btn--ghost:hover .btn__ico, .btn--ghost:focus-visible .btn__ico { background: var(--night); color: var(--paper); }
.btn--sm { min-height: 2.9rem; padding-left: 1.05rem; gap: .8rem; }
.btn--sm .btn__ico { width: 2.15rem; height: 2.15rem; }
.btn--largo { width: 100%; }

/* --------------------------------------------------------------------------
   Revelação ao rolar — só existe depois que o JS marca <html class="anim-pronta">
   (naocodei · CSS 02 Subir e aparecer · CSS 05 Cascata)
   -------------------------------------------------------------------------- */
.anim-pronta [data-revela] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity var(--t-slow) var(--ease-out), transform var(--t-slow) var(--ease-out);
  transition-delay: calc(var(--ordem, 0) * var(--stagger));
}
.anim-pronta [data-revela].dentro { opacity: 1; transform: none; }

/* Revelar palavra por palavra (naocodei · JS 16) */
.anim-pronta [data-palavras] .palavra {
  display: inline-block;
  overflow: hidden;
  vertical-align: top;
  padding-bottom: .08em;
  margin-bottom: -.08em;
}
.anim-pronta [data-palavras] .palavra > span {
  display: inline-block;
  transform: translateY(105%);
  transition: transform var(--t-slow) var(--ease-out);
  transition-delay: calc(var(--p, 0) * 70ms);
}
.anim-pronta [data-palavras].dentro .palavra > span { transform: none; }

/* Se o main.js não confirmar em 3 s, tudo aparece (nada fica invisível) */
.anim-falhou [data-revela],
.anim-falhou [data-palavras] .palavra > span { opacity: 1 !important; transform: none !important; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}