/* ==========================================================================
   BotFriends — Base
   Reset, fontes, tipografia, primitivas de layout e acessibilidade.
   Compartilhado por todas as páginas do site.
   ========================================================================== */

/* ------------------------------------------------------------------ FONTES */
/* Inter variável, self-hosted e subsetada para latim (~68 KB, 1 requisição).
   Nenhuma requisição a CDN externa: melhor performance e privacidade. */
@font-face {
  font-family: "Inter";
  src: url("../fonts/inter-var-latin.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122,
    U+2190-2199, U+2212, U+2215, U+2713, U+25CF, U+FEFF, U+FFFD;
}

/* ------------------------------------------------------------------- RESET */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  /* Compensa o header fixo ao navegar por âncoras */
  scroll-padding-top: calc(var(--header-h) + 1.5rem);
}

body {
  margin: 0;
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  font-weight: 400;
  line-height: var(--lh-body);
  font-feature-settings: "cv11", "ss01";
  font-variant-ligatures: contextual common-ligatures;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* Trava definitiva contra scroll horizontal em qualquer viewport */
  overflow-x: clip;
}

h1,
h2,
h3,
h4,
p,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

svg {
  flex: 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: 600;
}

code,
kbd,
samp,
pre {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 0;
}

::selection {
  background: var(--brand-tint-28);
  color: var(--text);
}

/* --------------------------------------------------------------- TIPOGRAFIA */
.display {
  font-size: var(--fs-display);
  font-weight: 800;
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-display);
  text-wrap: balance;
}

.h2 {
  font-size: var(--fs-h2);
  font-weight: 700;
  line-height: var(--lh-heading);
  letter-spacing: var(--tracking-heading);
  text-wrap: balance;
}

.h3 {
  font-size: var(--fs-h3);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.012em;
}

.lead {
  font-size: var(--fs-lead);
  line-height: 1.62;
  color: var(--text-muted);
  text-wrap: pretty;
}

.eyebrow {
  display: inline-block;
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--brand-400);
}

.text-muted {
  color: var(--text-muted);
}

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

.section {
  padding-block: var(--section-y);
  position: relative;
}

/* Cabeçalho padrão de seção (eyebrow + título + linha de apoio) */
.section-head {
  max-width: 42rem;
  margin-bottom: clamp(2.5rem, 5vw, 3.75rem);
}

.section-head .eyebrow {
  margin-bottom: var(--s-3);
}

.section-head .lead {
  margin-top: var(--s-4);
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

/* --------------------------------------------------- ACESSIBILIDADE / FOCO */
:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--r-xs);
}

.skip-link {
  position: absolute;
  top: var(--s-2);
  left: var(--s-2);
  z-index: 200;
  padding: 0.7rem 1.1rem;
  border-radius: var(--r-sm);
  background: var(--brand-500);
  color: #fff;
  font-size: var(--fs-sm);
  font-weight: 600;
  transform: translateY(-160%);
  transition: transform var(--dur) var(--ease);
}

.skip-link:focus-visible {
  transform: translateY(0);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------- REVELAÇÃO SUAVE */
/* Só é aplicada quando o JS está ativo (html.js), garantindo que o conteúdo
   permaneça visível caso o script falhe ou seja bloqueado. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity var(--dur-slow) var(--ease),
    transform var(--dur-slow) var(--ease);
}

.js [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

/* ------------------------------------------------------- MOVIMENTO REDUZIDO */
@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;
    scroll-behavior: auto !important;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}