/* ==========================================================================
   BASE — reset, tipografia base, layout primário, utilitários
   Camada 2 de 5. Depende de: tokens.css
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. RESET
   -------------------------------------------------------------------------- */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  /* Compensa o header fixo ao usar links de âncora */
  scroll-padding-top: calc(var(--header-h) + 1rem);
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  font-weight: var(--fw-regular);
  letter-spacing: var(--ls-sm);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "cv11" 1, "ss01" 1;
  overflow-x: hidden;
}

/* Trava o scroll do body quando um modal está aberto */
body.is-locked {
  overflow: hidden;
  touch-action: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  line-height: var(--lh-snug);
  letter-spacing: var(--ls-tighter);
  color: inherit;
  text-wrap: balance;
}

p {
  margin: 0;
  text-wrap: pretty;
}

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

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

img {
  height: auto;
}

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

button {
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
}

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

strong,
b {
  font-weight: var(--fw-semibold);
  color: inherit;
}

hr {
  height: 1px;
  margin: 0;
  border: 0;
  background: var(--line);
}

::selection {
  background: var(--blue-200);
  color: var(--navy-950);
}

[hidden] {
  display: none !important;
}

/* --------------------------------------------------------------------------
   2. FOCO VISÍVEL — nunca remover, apenas estilizar
   -------------------------------------------------------------------------- */

:focus {
  outline: none;
}

:focus-visible {
  outline: 3px solid var(--blue-500);
  outline-offset: 2px;
  border-radius: var(--r-2xs);
}

.on-navy :focus-visible {
  outline-color: var(--cyan-300);
}

/* --------------------------------------------------------------------------
   3. LINK DE PULAR PARA O CONTEÚDO
   -------------------------------------------------------------------------- */

.skip-link {
  position: fixed;
  top: var(--sp-3);
  left: 50%;
  z-index: var(--z-toast);
  padding: var(--sp-3) var(--sp-5);
  transform: translate(-50%, -160%);
  border-radius: var(--r-pill);
  background: var(--navy-950);
  color: #fff;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  box-shadow: var(--sh-lg);
  transition: transform var(--t-base) var(--ease-out);
}

.skip-link:focus-visible {
  transform: translate(-50%, 0);
}
.t-h2 {
  font-family: var(--font-display);
  font-size: var(--fs-4xl);
  font-weight: var(--fw-bold);
  line-height: var(--lh-snug);
  letter-spacing: -0.028em;
}

.t-h3 {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  line-height: var(--lh-snug);
  letter-spacing: -0.022em;
}

.t-h4 {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-snug);
  letter-spacing: -0.015em;
}
.t-body {
  font-size: var(--fs-md);
  line-height: var(--lh-relaxed);
  color: var(--text-soft);
}
/* Rótulo em caixa alta com traço — assinatura visual da página */
.t-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-2xs);
  text-transform: uppercase;
  color: var(--brand);
}

.t-eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  border-radius: var(--r-pill);
  background: var(--grad-accent-line);
  flex: none;
}

.on-navy .t-eyebrow {
  color: var(--cyan-300);
}

.on-navy .t-eyebrow::before {
  background: linear-gradient(90deg, var(--cyan-300), rgba(125, 211, 252, 0.2));
}

/* Número de seção */
.t-index {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-2xs);
  color: var(--text-faint);
}
/* Texto com gradiente azul */
.t-gradient {
  background: linear-gradient(100deg, var(--blue-700) 0%, var(--blue-500) 45%, var(--cyan-500) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.on-navy .t-gradient {
  background: linear-gradient(100deg, #ffffff 0%, var(--cyan-300) 60%, var(--blue-300) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* --------------------------------------------------------------------------
   4. LAYOUT
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow {
  max-width: var(--container-narrow);
}
.section {
  position: relative;
  padding-block: var(--section-y);
  background: var(--bg);
}

.section--alt {
  background: var(--bg-alt);
}
.section--navy {
  background: var(--grad-navy);
  color: var(--text-inverse);
}
.section__head {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  max-width: 62ch;
  margin-bottom: clamp(2.25rem, 1.5rem + 3vw, 3.75rem);
}

.section__head--center {
  align-items: center;
  margin-inline: auto;
  text-align: center;
}

.section__head--center .t-eyebrow::before {
  display: none;
}

.section__head p {
  font-size: var(--fs-lg);
  line-height: var(--lh-relaxed);
  color: var(--text-soft);
}/* --------------------------------------------------------------------------
   5. TEXTOS DE APOIO AO CONTEÚDO
   -------------------------------------------------------------------------- */

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

/* Sprite de ícones: oculto, mas disponível via <use> */
.svg-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}

.icon {
  width: 1.25em;
  height: 1.25em;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
  overflow: visible;
}

.icon--fill {
  fill: currentColor;
  stroke: none;
}

.noise-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.028;
  background-image: var(--noise);
  background-size: 160px 160px;
  mix-blend-mode: overlay;
}

/* --------------------------------------------------------------------------
   6. ANIMAÇÃO DE ENTRADA (IntersectionObserver)
   -------------------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity var(--t-slower) var(--ease-out),
    transform var(--t-slower) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
.reveal--scale {
  transform: scale(0.965);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Sem JS: nunca esconder conteúdo */
.no-js .reveal {
  opacity: 1;
  transform: none;
}

/* --------------------------------------------------------------------------
   7. RESPONSIVIDADE DOS PRIMITIVOS
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
  :root {
    --header-h: 68px;
    --header-h-scrolled: 60px;
  }
}

@media (max-width: 640px) {
  html {
    scroll-padding-top: calc(var(--header-h) + 0.75rem);
  }}

/* --------------------------------------------------------------------------
   8. PREFERÊNCIA POR MENOS MOVIMENTO
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}