/* =========================================================
   Base / Reset
   ========================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: auto;
  scroll-padding-top: calc(var(--header-h) + 16px);
  overflow-x: hidden;
  overflow-x: clip;
  max-width: 100vw;
  overscroll-behavior-x: none;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--text-primary);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  overflow-x: clip;
  max-width: 100vw;
  position: relative;
  overscroll-behavior-x: none;
}

/* --- Ambient backdrop --- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(60% 45% at 85% 0%, rgba(37, 99, 235, 0.28), transparent 65%),
    radial-gradient(65% 55% at 8% 12%, rgba(37, 99, 235, 0.42), transparent 65%),
    radial-gradient(75% 60% at 50% 40%, rgba(59, 130, 246, 0.14), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

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

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

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

::selection {
  background: var(--brand-600);
  color: var(--ink-0);
}

/* --- Utilities --- */
.container {
  width: min(100%, var(--container));
  margin-inline: auto;
  padding-inline: var(--gutter);
  position: relative;
  z-index: 1;
}

.container-narrow {
  width: min(100%, var(--container-narrow));
  margin-inline: auto;
  padding-inline: var(--gutter);
  position: relative;
  z-index: 1;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.eyebrow::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--brand-500);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
}

.eyebrow--plain::before {
  display: none;
}

.muted { color: var(--text-secondary); }
.mono  { font-family: var(--font-mono); }

.serif {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
}

/* Section rhythm */
section {
  position: relative;
  padding-block: clamp(80px, 10vw, 140px);
}

section + section {
  border-top: 1px solid var(--border);
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
}

.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}

.reveal-stagger > * {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
}

.reveal-stagger.is-in > * {
  opacity: 1;
  transform: translateY(0);
}

.reveal-stagger.is-in > *:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger.is-in > *:nth-child(2) { transition-delay: 80ms; }
.reveal-stagger.is-in > *:nth-child(3) { transition-delay: 160ms; }
.reveal-stagger.is-in > *:nth-child(4) { transition-delay: 240ms; }
.reveal-stagger.is-in > *:nth-child(5) { transition-delay: 320ms; }
.reveal-stagger.is-in > *:nth-child(6) { transition-delay: 400ms; }

/* Reveal variants — pra não ficar tudo igual */
.reveal--left  { transform: translateX(-32px); }
.reveal--right { transform: translateX(32px); }
.reveal--scale { transform: scale(0.96); }
.reveal--fade  { transform: none; }

.reveal--left.is-in,
.reveal--right.is-in { transform: translateX(0); }
.reveal--scale.is-in { transform: scale(1); }

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}