/* ==========================================================================
   Nextgen Brasil · base.css
   Direção: editorial tech. Fundo cinza-azulado frio, tipografia em azul-tinta,
   uma família de azuis ancorada no degradê do logo (índigo → azul → ciano).
   O orbe do hero é o único momento ousado; o resto fica quieto e preciso.
   ========================================================================== */

:root {
  /* superfícies */
  --bg: #EDF1F8;
  --bg-alt: #E3E9F4;
  --band: rgba(255, 255, 255, .55);
  --surface: #FFFFFF;
  --glass: rgba(255, 255, 255, .68);
  --nav-bg: rgba(237, 241, 248, .82);

  /* texto */
  --ink: #08122B;
  --ink-2: #36435F;
  --ink-3: #586481;

  /* linhas e trilhas */
  --line: rgba(8, 18, 43, .12);
  --line-2: rgba(8, 18, 43, .24);
  --track: rgba(8, 18, 43, .09);
  --muted-fill: rgba(8, 18, 43, .26);

  /* marca: azul tech */
  --accent: #1B4FCB;
  --electric: #1F5BE0;
  --indigo: #21218E;
  --cyan: #0AD7DA;
  --ring: #08122B;
  --danger: #B3261E;
  --grad: linear-gradient(135deg, #21218E 0%, #1F5BE0 52%, #0AD7DA 100%);
  --grad-text: linear-gradient(100deg, #21218E 0%, #1F5BE0 55%, #0E86C4 100%);
  --btn: linear-gradient(180deg, #3A78F2 0%, #1B4FCB 100%);

  /* zonas escuras fixas (iguais nos dois temas) */
  --z-bg: #050B22;
  --z-bg-2: #0A1646;
  --z-ink: #EAF0FF;
  --z-ink-2: #B3C1E8;
  --z-ink-3: #93A2CC;
  --z-line: rgba(160, 185, 255, .2);
  --z-accent: #86B2FF;
  --panel: linear-gradient(155deg, #1E5BF0 0%, #1537B5 52%, #0B1F6E 100%);

  --shadow: 0 1px 2px rgba(8, 18, 43, .05), 0 16px 40px -18px rgba(18, 40, 120, .3);

  /* tipo e medidas */
  --font: 'Hanken Grotesk', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --container: 1240px;
  --gutter: clamp(20px, 4vw, 48px);
  --header-h: 72px;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --r-1: 10px;
  --r-2: 16px;
  --r-3: 22px;
  --r-4: 32px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #050A1C;
    --bg-alt: #081330;
    --band: rgba(255, 255, 255, .03);
    --surface: #0C1736;
    --glass: rgba(12, 23, 54, .62);
    --nav-bg: rgba(5, 10, 28, .8);
    --ink: #EAF0FF;
    --ink-2: #B4C1E4;
    --ink-3: #8C9AC2;
    --line: rgba(160, 185, 255, .16);
    --line-2: rgba(160, 185, 255, .3);
    --track: rgba(160, 185, 255, .14);
    --muted-fill: rgba(160, 185, 255, .38);
    --accent: #8DB4FF;
    --ring: rgba(190, 208, 255, .65);
    --danger: #FF9B94;
    --grad-text: linear-gradient(100deg, #A9BEFF 0%, #6FA8FF 50%, #52E0EA 100%);
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 18px 44px -20px rgba(0, 0, 0, .7);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #050A1C;
  --bg-alt: #081330;
  --band: rgba(255, 255, 255, .03);
  --surface: #0C1736;
  --glass: rgba(12, 23, 54, .62);
  --nav-bg: rgba(5, 10, 28, .8);
  --ink: #EAF0FF;
  --ink-2: #B4C1E4;
  --ink-3: #8C9AC2;
  --line: rgba(160, 185, 255, .16);
  --line-2: rgba(160, 185, 255, .3);
  --track: rgba(160, 185, 255, .14);
  --muted-fill: rgba(160, 185, 255, .38);
  --accent: #8DB4FF;
  --ring: rgba(190, 208, 255, .65);
  --danger: #FF9B94;
  --grad-text: linear-gradient(100deg, #A9BEFF 0%, #6FA8FF 50%, #52E0EA 100%);
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 18px 44px -20px rgba(0, 0, 0, .7);
  color-scheme: dark;
}

/* zonas que ficam escuras nos dois temas: redefinem os tokens localmente */
.dark-zone {
  --ink: var(--z-ink);
  --ink-2: var(--z-ink-2);
  --ink-3: var(--z-ink-3);
  --line: var(--z-line);
  --line-2: rgba(160, 185, 255, .36);
  --accent: var(--z-accent);
  --surface: rgba(255, 255, 255, .06);
  --glass: rgba(255, 255, 255, .08);
  --track: rgba(160, 185, 255, .18);
  --muted-fill: rgba(160, 185, 255, .42);
  --ring: rgba(190, 208, 255, .7);
  --grad-text: linear-gradient(100deg, #A9BEFF 0%, #6FA8FF 50%, #52E0EA 100%);
  color: var(--ink);
}

/* reset ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 12px); }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: clamp(16px, .25vw + 15px, 18px);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
/* faixa sob a barra de status do celular */
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto;
  height: env(safe-area-inset-top, 0px);
  z-index: 10;
  background: var(--bg);
}
.ambient {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(1100px 640px at 88% -8%, rgba(31, 91, 224, .15), transparent 62%),
    radial-gradient(900px 600px at -8% 46%, rgba(10, 215, 218, .1), transparent 62%);
}

img, svg { display: block; max-width: 100%; }
h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: var(--accent); text-underline-offset: .2em; }
button { font: inherit; color: inherit; }
input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--electric); outline-offset: 3px; border-radius: 6px; }
.dark-zone :focus-visible, .calc :focus-visible, .foot :focus-visible, .who :focus-visible { outline-color: var(--cyan); }

.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip {
  position: fixed; left: 16px; top: -80px; z-index: 100;
  padding: 12px 18px; border-radius: var(--r-1);
  background: var(--ink); color: var(--bg); font-weight: 600; text-decoration: none;
  transition: top .25s var(--ease);
}
.skip:focus { top: calc(12px + env(safe-area-inset-top, 0px)); }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-left: max(var(--gutter), env(safe-area-inset-left, 0px));
  padding-right: max(var(--gutter), env(safe-area-inset-right, 0px));
}
.section { position: relative; padding-block: clamp(72px, 10vw, 132px); }
.band { background: var(--band); border-block: 1px solid var(--line); }

/* tipografia ------------------------------------------------------------- */
.h1, .h2, .h3 { font-weight: 300; letter-spacing: -.035em; line-height: 1.04; text-wrap: balance; }
.h1 { font-size: clamp(40px, 5.8vw, 76px); letter-spacing: -.045em; line-height: .98; }
.h2 { font-size: clamp(34px, 4.6vw, 60px); }
.h3 { font-size: clamp(22px, 2.1vw, 28px); font-weight: 400; letter-spacing: -.02em; line-height: 1.15; }
.lead { font-size: clamp(17px, 1.2vw + 8px, 20px); line-height: 1.6; color: var(--ink-2); max-width: 62ch; text-wrap: pretty; }
em { font-style: italic; font-weight: inherit; }
.grad {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  padding-right: .08em;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}
.eyebrow { font-size: 12px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); line-height: 1; }
.eyebrow b { font-weight: 600; color: var(--accent); }
.label { font-size: 12px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); line-height: 1.3; }
.src { font-size: 13px; line-height: 1.5; color: var(--ink-3); max-width: 70ch; }
.i { width: 1.15em; height: 1.15em; flex: none; }

/* botões ----------------------------------------------------------------- */
.btn {
  position: relative; isolation: isolate; overflow: hidden;
  display: inline-flex; align-items: center; justify-content: center; gap: .7em;
  min-height: 52px; padding: 0 24px;
  border: 0; border-radius: var(--r-1);
  font: 600 16px/1.1 var(--font); letter-spacing: -.005em; text-decoration: none; text-align: center;
  cursor: pointer;
  transition: transform .3s var(--ease), translate .3s var(--ease), box-shadow .3s var(--ease), background-color .2s, color .2s;
}
.btn .i { width: 18px; height: 18px; transition: transform .35s var(--ease); }
.btn:hover .i-go { transform: translateX(4px); }
.btn:active { transform: scale(.975); }
.btn--sm { min-height: 44px; padding: 0 18px; font-size: 15px; }

.btn--primary {
  color: #fff; background: var(--btn);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .38), 0 14px 28px -12px rgba(31, 91, 224, .75);
}
.btn--primary::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(105deg, transparent 38%, rgba(255, 255, 255, .38) 50%, transparent 62%);
  transform: translateX(-130%); transition: transform .9s var(--ease);
}
.btn--primary:hover { translate: 0 -2px; box-shadow: inset 0 1px 0 rgba(255, 255, 255, .45), 0 20px 34px -12px rgba(31, 91, 224, .85); }
.btn--primary:hover::after { transform: translateX(130%); }

.btn--ghost { color: var(--ink); background: var(--glass); box-shadow: inset 0 0 0 1px var(--line-2); }
.btn--ghost:hover { color: var(--accent); box-shadow: inset 0 0 0 1.5px var(--accent); translate: 0 -2px; }

.btn--light { color: #08122B; background: #fff; box-shadow: 0 0 0 2px rgba(255, 255, 255, .25), 0 16px 30px -14px rgba(10, 215, 218, .55); }
.btn--light:hover { translate: 0 -2px; box-shadow: 0 0 0 2px rgba(10, 215, 218, .8), 0 20px 34px -14px rgba(10, 215, 218, .7); }

.link {
  display: inline-flex; align-items: center; gap: .5em; min-height: 44px;
  font-weight: 600; color: var(--ink); text-decoration: none;
  background: linear-gradient(currentColor, currentColor) 0 calc(100% - 9px) / 0 1.5px no-repeat;
  transition: background-size .45s var(--ease), color .2s;
}
.link .i { width: 1.05em; height: 1.05em; transition: transform .35s var(--ease); }
.link:hover { color: var(--accent); background-size: calc(100% - 1.6em) 1.5px; }
.link:hover .i-go { transform: translateX(4px); }
.link--out:hover .i { transform: translate(2px, -2px); }

/* cabeçalho -------------------------------------------------------------- */
.progress { position: fixed; top: env(safe-area-inset-top, 0px); left: 0; right: 0; height: 3px; z-index: 60; pointer-events: none; }
.progress i { display: block; height: 100%; background: var(--grad); transform-origin: left; transform: scaleX(0); }

.nav {
  position: fixed; top: env(safe-area-inset-top, 0px); left: 0; right: 0; z-index: 50;
  height: var(--header-h);
  border-bottom: 1px solid transparent;
  transition: background-color .35s, border-color .35s, backdrop-filter .35s;
}
.nav.is-open { background: var(--bg); }
.nav.is-scrolled, .nav.is-open {
  background: var(--nav-bg);
  -webkit-backdrop-filter: blur(16px) saturate(1.5);
  backdrop-filter: blur(16px) saturate(1.5);
  border-bottom-color: var(--line);
}
.nav__in { height: 100%; display: flex; align-items: center; gap: 20px; }
.brand { display: inline-flex; flex: none; }
.logo { height: 42px; width: auto; }
.logo--dark { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .logo--light { display: none; }
  :root:not([data-theme="light"]) .logo--dark { display: block; }
}
:root[data-theme="dark"] .logo--light { display: none; }
:root[data-theme="dark"] .logo--dark { display: block; }

.nav__panel { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.nav__links { display: flex; align-items: center; gap: 2px; }
.nav__links a {
  position: relative; display: inline-flex; align-items: center; min-height: 44px; padding: 0 14px;
  color: var(--ink-2); font-size: 15px; font-weight: 500; text-decoration: none;
  transition: color .2s;
}
.nav__links a::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 7px; height: 2px; border-radius: 2px;
  background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform .4s var(--ease);
}
.nav__links a:hover, .nav__links a[aria-current="true"] { color: var(--ink); }
.nav__links a:hover::after, .nav__links a[aria-current="true"]::after { transform: scaleX(1); }

.nav__toggle {
  display: none; margin-left: auto; width: 44px; height: 44px; padding: 0;
  align-items: center; justify-content: center;
  border: 1px solid var(--line-2); border-radius: var(--r-1); background: var(--glass); color: var(--ink); cursor: pointer;
}
.nav__toggle .i { width: 22px; height: 22px; }
.nav__toggle .i--close { display: none; }
.nav.is-open .nav__toggle .i--menu { display: none; }
.nav.is-open .nav__toggle .i--close { display: block; }

@media (max-width: 980px) {
  .nav__toggle { display: inline-flex; }
  .nav__panel {
    position: fixed; top: calc(var(--header-h) + env(safe-area-inset-top, 0px)); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 16px;
    padding: 8px max(var(--gutter), env(safe-area-inset-right, 0px)) 24px max(var(--gutter), env(safe-area-inset-left, 0px));
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    visibility: hidden; opacity: 0; transform: translateY(-10px);
    transition: opacity .25s, transform .35s var(--ease), visibility 0s .35s;
  }
  .nav.is-open .nav__panel { visibility: visible; opacity: 1; transform: none; transition-delay: 0s; }
  .nav__links { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__links a { font-size: 20px; min-height: 56px; padding: 0 4px; border-bottom: 1px solid var(--line); }
  .nav__links a::after { display: none; }
  .nav__panel .btn { width: 100%; }
}

/* CTA fixo no celular ---------------------------------------------------- */
.sticky-cta {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; display: none;
  padding: 12px max(16px, env(safe-area-inset-right, 0px)) calc(12px + env(safe-area-inset-bottom, 0px)) max(16px, env(safe-area-inset-left, 0px));
  background: linear-gradient(to top, var(--bg) 40%, transparent);
  transform: translateY(130%); transition: transform .45s var(--ease);
  pointer-events: none;
}
.sticky-cta .btn { width: 100%; pointer-events: auto; }
.sticky-cta.is-on { transform: none; }
@media (max-width: 980px) { .sticky-cta { display: block; } }

/* movimento: revelar ao rolar ------------------------------------------- */
/* Tudo é visível em repouso. O JS só marca .pre nos blocos abaixo da dobra. */
[data-reveal].pre { opacity: .45; transform: translate3d(0, 22px, 0); }
[data-reveal="scale"].pre { transform: scale(.97); }
[data-reveal].is-in { animation: rise .95s var(--ease) var(--d, 0ms) backwards; }
[data-reveal="scale"].is-in { animation-name: rise-scale; }
@keyframes rise { from { opacity: .45; transform: translate3d(0, 22px, 0); } }
@keyframes rise-scale { from { opacity: .45; transform: scale(.97); } }

@media (prefers-reduced-motion: reduce) {
  [data-reveal].pre { opacity: 1; transform: none; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    animation-delay: 0ms !important;
    transition-duration: .01ms !important;
    transition-delay: 0ms !important;
    scroll-behavior: auto !important;
  }
}