/* ==========================================================================
   Base — reset moderno, tipografia e utilitários globais
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1rem);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-size-adjust: from-font;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

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

h1,
h2,
h3,
h4 {
  color: var(--color-text-strong);
  line-height: 1.12;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

ul[role="list"],
ol[role="list"] {
  list-style: none;
  padding: 0;
}

a {
  color: var(--color-brand-600);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--color-brand-700);
}

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

button {
  cursor: pointer;
}

:focus-visible {
  outline: 3px solid var(--color-indigo-500);
  outline-offset: 3px;
}

::selection {
  background: rgb(79 70 229 / 0.2);
}

html [hidden] {
  display: none;
}

#conteudo:focus {
  outline: none;
}

#top-sentinel {
  position: absolute;
  top: 0;
  width: 1px;
  height: 1px;
}

/* Layout */
.container {
  width: min(100% - 2 * var(--container-pad), var(--container));
  margin-inline: auto;
}

.section {
  padding-block: var(--space-9);
}

.section--flush-top {
  padding-top: 0;
}

.section--muted {
  background: var(--color-surface);
  border-block: 1px solid var(--color-border);
}

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

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.6rem 1rem;
  background: var(--color-text-strong);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-decoration: none;
  transform: translateY(-200%);
  transition: transform var(--duration-fast) var(--ease-out);
}

.skip-link:focus {
  transform: translateY(0);
  color: #fff;
}

/* Cabeçalhos de seção */
.section-head {
  max-width: 44rem;
  margin-bottom: var(--space-6);
}

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

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--space-3);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-indigo-600);
}

.eyebrow::before {
  content: "";
  width: 1.5rem;
  height: 2px;
  border-radius: 2px;
  background: var(--gradient-brand);
}

.section-title {
  font-size: var(--text-h2);
  font-weight: 800;
}

.section-lead {
  margin-top: var(--space-3);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
}

.text-gradient {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Movimento reduzido */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms;
    animation-iteration-count: 1;
    transition-duration: 0.01ms;
  }
}