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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--black);
  font: 400 1.0625rem/1.75 var(--font-body);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

img { height: auto; }

h1, h2, h3, h4, p, ul, ol, dl, dd, figure, blockquote, legend, fieldset { margin: 0; padding: 0; }
ul, ol { list-style: none; }
fieldset { border: 0; min-width: 0; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
table { border-collapse: collapse; width: 100%; }

/* ---------- Tipografia ---------- */

h1, h2, h3, h4, .t-display {
  font-family: var(--font-display);
  color: var(--blue-dark);
  letter-spacing: -0.025em;
  text-wrap: balance;
}

h1 { font: 700 clamp(2.125rem, 4.4vw, 3.5rem)/1.06 var(--font-display); }
h2 { font: 700 clamp(1.625rem, 2.9vw, 2.375rem)/1.12 var(--font-display); }
h3 { font: 600 1.25rem/1.35 var(--font-display); letter-spacing: -0.015em; }
h4 { font: 600 1.0625rem/1.4 var(--font-display); letter-spacing: -0.01em; }

.t-hero {
  font: 700 clamp(2.5rem, 6.4vw, 4.75rem)/1.02 var(--font-display);
  letter-spacing: -0.035em;
}

.t-mega {
  font: 700 clamp(3rem, 12vw, 8rem)/0.9 var(--font-display);
  letter-spacing: -0.05em;
}

.t-lead {
  font: 300 clamp(1.125rem, 1.6vw, 1.4375rem)/1.5 var(--font-display);
  color: var(--blue-dark);
  letter-spacing: -0.01em;
  max-width: 34ch;
}

.t-body { max-width: var(--measure); }
.t-body + .t-body { margin-top: var(--space-4); }
p + p { margin-top: var(--space-4); }

.t-small { font-size: 0.875rem; line-height: 1.6; color: var(--grey-dark); }
.t-note { margin-top: var(--space-4); font-size: 0.875rem; line-height: 1.6; color: var(--grey-dark); }
.t-num { font-variant-numeric: tabular-nums; }

.t-kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  font: 700 0.75rem/1 var(--font-body);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue);
}

.t-kicker::before {
  content: "";
  width: 28px;
  height: 6px;
  background: currentColor;
  transform: skewX(calc(var(--slant) * -1));
  flex: 0 0 auto;
}

.t-kicker--plain::before { display: none; }

/* ---------- Layout ---------- */

.l-wrap {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.l-narrow { max-width: 820px; }
.l-mid { max-width: 1040px; }

.l-section { padding-block: var(--section-y); }
.l-section--tight { padding-block: clamp(48px, 5vw, 72px); }
.l-section--flush-top { padding-top: 0; }

.l-split {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(32px, 5vw, 80px);
  align-items: center;
}

.l-split--top { align-items: start; }
.l-split--aside { grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr); }

.l-cols-2,
.l-cols-3,
.l-cols-4 {
  display: grid;
  gap: clamp(16px, 2vw, 24px);
}

.l-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.l-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.l-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.l-stack { display: grid; gap: var(--space-5); }
.l-stack--sm { gap: var(--space-3); }
.l-stack--lg { gap: var(--space-7); }

.l-row { display: flex; flex-wrap: wrap; gap: var(--space-4); align-items: center; }

.l-sticky {
  position: sticky;
  top: calc(var(--header-h) + var(--subnav-h) + 32px);
  align-self: start;
}

/* ---------- Cabeçalho de seção ---------- */

.s-head { max-width: 46rem; }
.s-head > * + * { margin-top: var(--space-4); }
:where(.s-head) p { color: var(--grey-dark); }
.s-head--wide { max-width: 60rem; }

.s-head-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-5);
}

/* ---------- Superfícies ---------- */

.is-dark {
  background: var(--blue-dark);
  color: var(--white);
}

.is-dark h1,
.is-dark h2,
.is-dark h3,
.is-dark h4,
.is-dark .t-lead { color: var(--white); }

.is-dark .t-kicker { color: var(--white); }
.is-dark .t-kicker::before { background: var(--orange); }
.is-dark .t-small,
.is-dark :where(.s-head) p { color: rgba(255, 255, 255, 0.76); }

.is-tint { background: var(--tint-blue); }

/* ---------- Utilidades ---------- */

.u-bar {
  width: 96px;
  height: 8px;
  background: var(--blue);
  transform: skewX(calc(var(--slant) * -1));
  transform-origin: left center;
}

.u-bar--orange { background: var(--orange); }
.u-bar--white { background: var(--white); }
.u-bar--sm { width: 56px; height: 6px; }

.u-notch {
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - var(--notch)),
    calc(100% - var(--notch-x)) 100%,
    0 100%
  );
}

.u-notch-lg {
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - var(--notch-lg)),
    calc(100% - var(--notch-lg-x)) 100%,
    0 100%
  );
}

.u-notch-tl {
  clip-path: polygon(
    var(--notch-x) 0,
    100% 0,
    100% 100%,
    0 100%,
    0 var(--notch)
  );
}

.u-index {
  font: 300 0.875rem/1 var(--font-display);
  letter-spacing: 0.08em;
  color: var(--blue);
  font-variant-numeric: tabular-nums;
}

.u-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.u-ext {
  width: 15px;
  height: 15px;
  flex: 0 0 auto;
}

.u-arrow {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  transition: transform var(--t-fast) var(--ease);
}

a { color: inherit; }

.u-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--blue);
  font: 700 0.9375rem/1.4 var(--font-body);
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
  transition: color var(--t-fast) var(--ease), gap var(--t-fast) var(--ease);
}

.u-link:hover { gap: 16px; }
.is-dark .u-link { color: var(--white); }

.u-file {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border: 1px solid var(--grey-light);
  border-left: 4px solid var(--cyan);
  background: var(--white);
  color: var(--blue-dark);
  font: 700 0.9375rem/1.3 var(--font-body);
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.u-file:hover { border-color: var(--cyan); background: var(--tint-blue); }
.u-file svg { color: var(--cyan); }

.u-focus-ring:focus-visible,
:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

.is-dark :focus-visible { outline-color: var(--white); }

::selection { background: var(--blue); color: var(--white); }

.skip {
  position: absolute;
  top: -80px;
  left: 16px;
  z-index: 90;
  padding: 12px 18px;
  background: var(--blue-dark);
  color: var(--white);
  font: 700 0.9375rem/1 var(--font-body);
  transition: top var(--t-fast) var(--ease);
}

.skip:focus { top: 12px; }

[id] { scroll-margin-top: var(--anchor-offset); }

/* ---------- Movimento ---------- */

.js .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--t-slow) var(--ease-out), transform var(--t-slow) var(--ease-out);
  transition-delay: calc(var(--i, 0) * 70ms);
}

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

/* ---------- Responsivo base ---------- */

@media (max-width: 1023px) {
  .l-split,
  .l-split--aside { grid-template-columns: minmax(0, 1fr); }
  .l-cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .l-sticky { position: static; }
}

@media (max-width: 767px) {
  body { font-size: 1rem; }
  .l-cols-2,
  .l-cols-3,
  .l-cols-4 { grid-template-columns: minmax(0, 1fr); }
  .t-lead { max-width: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}