/* ==========================================================================
   landing-starter / Aurora — styles.css

   A v2 do template: mesma disciplina da Classic (uma folha, sem framework,
   sem build) com uma camada a mais de artefatos visuais: halo, moldura de
   app, ribbons de gradiente, starfield, paisagem e grão — todos em CSS/SVG.

   Ordem de leitura: fontes -> tokens -> base -> nav -> botões -> hero -> shot
   -> mocks -> features -> interface (ribbons, diagrama) -> download -> cta
   (starfield) -> faq -> footer (paisagem) -> grão -> breakpoints -> movimento.

   Os três padrões que dão o caráter desta folha:
   1. Dark-first: o tema escuro é o :root; o claro é a classe .light.
   2. Artefatos por token: cada efeito (glow, ribbon, estrela, grão,
      paisagem) tem um token de intensidade/cor — trocar o valor troca o
      efeito sem tocar no layout.
   3. Profundidade por luz: halo e hairline no lugar de sombra pesada.

   Comentário do autor: os nomes de token são PAPEL, não matiz.
   Trocar o valor troca o tema; trocar o papel quebra a hierarquia.
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. FONTES (self-hosted, OFL — licenças em assets/fonts/)
   Variáveis, um arquivo cada; o fallback de sistema cobre a janela do swap.
   -------------------------------------------------------------------------- */

@font-face {
  font-family: "Zalando Sans SemiExpanded";
  src: url("../fonts/ZalandoSansSemiExpanded-variable.woff2") format("woff2");
  font-weight: 200 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Geist Mono";
  src: url("../fonts/GeistMono-variable.woff2") format("woff2");
  font-weight: 200 900;
  font-style: normal;
  font-display: swap;
}

/* --------------------------------------------------------------------------
   1. TOKENS — o tema escuro é o padrão; .light sobrescreve os mesmos papéis.
   -------------------------------------------------------------------------- */

:root {
  /* Cor de marca. Ajuste o tom; todo acento/glow deriva dela. */
  --accent: #7c3aed;
  --accent-hover: color-mix(in srgb, var(--accent) 86%, #fff);
  --accent-soft: color-mix(in srgb, var(--accent) 16%, transparent);
  --accent-ring: color-mix(in srgb, var(--accent) 60%, transparent);
  --on-accent: #fff;

  /* Escada de superfície: canvas (página) -> band (faixa) -> surface (card) */
  --canvas: #07080c;
  --band: #0a0c11;
  --surface: #0e1016;
  --surface-2: #131722;

  /* Tinta: ink (texto forte) -> muted (corpo) -> faint (micro) */
  --ink: #eef1f6;
  --muted: #9aa3b2;
  --faint: #67707f;

  /* Fios */
  --hairline: #1b1f29;
  --hairline-strong: #2a3040;

  /* Estados (chips dos mocks) */
  --ok: #3ddba4;
  --busy: #f5b04d;
  --info: #78a9ff;

  /* Artefatos — cor e intensidade moram aqui */
  --glow-a: color-mix(in srgb, var(--accent) 58%, #7c5cff);
  --glow-b: color-mix(in srgb, var(--accent) 28%, #c084fc);
  --glow-op: .5;
  --ribbon-op: .42;
  --wire: color-mix(in srgb, var(--accent) 34%, var(--hairline-strong));
  --star-a: rgba(255, 255, 255, .92);
  --star-b: rgba(255, 255, 255, .5);
  --grain-op: .05;
  --land-1: #121622;
  --land-2: #0c0f17;
  --land-3: #080a11;
  --moon: rgba(255, 244, 214, .9);

  /* Raios: um conjunto fechado, cada componente pega um degrau */
  --r-xs: 4px;
  --r-sm: 7px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 18px;
  --r-pill: 9999px;

  /* Layout */
  --maxw: 1180px;
  --nav-h: 60px;

  /* Tipografia — self-hosted com fallback de sistema. */
  --font-sans: "Zalando Sans SemiExpanded", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
}

.light {
  --accent-hover: color-mix(in srgb, var(--accent) 88%, #000);
  --accent-soft: color-mix(in srgb, var(--accent) 12%, transparent);
  --on-accent: #fff;

  --canvas: #fff;
  --band: #f6f7fa;
  --surface: #fff;
  --surface-2: #f0f2f7;

  --ink: #101319;
  --muted: #545c6a;
  --faint: #828b99;

  --hairline: #e6e9ef;
  --hairline-strong: #d2d7e0;

  --ok: #0f9d6e;
  --busy: #b7791f;
  --info: #2f6fd6;

  --glow-op: .34;
  --ribbon-op: .3;
  --wire: color-mix(in srgb, var(--accent) 24%, var(--hairline-strong));
  --star-a: rgba(18, 26, 51, .5);
  --star-b: rgba(18, 26, 51, .22);
  --grain-op: .035;
  --land-1: #e9ecf2;
  --land-2: #dfe3ec;
  --land-3: #d3d8e4;
}

/* --------------------------------------------------------------------------
   2. BASE
   -------------------------------------------------------------------------- */

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  letter-spacing: -0.006em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; }
h1, h2, h3, h4, p, figure { margin: 0; }

::selection { background: color-mix(in srgb, var(--accent) 30%, transparent); }

/* Âncoras: o offset é a altura da nav fixa + folga */
[id] { scroll-margin-top: calc(var(--nav-h) + 16px); }

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: 0; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }

.eyebrow {
  display: inline-block;
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--faint);
}

/* --------------------------------------------------------------------------
   3. NAV — mesma disciplina da Classic: a responsividade é subtrativa,
   em cada breakpoint some uma peça; nunca entra um hamburger.
   -------------------------------------------------------------------------- */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: color-mix(in srgb, var(--canvas) 72%, transparent);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  backdrop-filter: saturate(160%) blur(18px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, background .2s;
}
.nav.scrolled { border-bottom-color: var(--hairline); }

.nav-inner {
  height: var(--nav-h);
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  gap: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.015em;
  white-space: nowrap;
  flex: none;
}
.brand-mark {
  width: 22px; height: 22px;
  border-radius: 30%;
  background: linear-gradient(140deg, var(--accent), var(--glow-b));
  box-shadow: 0 0 18px -4px color-mix(in srgb, var(--glow-a) 80%, transparent);
  flex: none;
}

.nav-links { display: flex; gap: 2px; margin-left: 8px; }
.nav-links a, .nav-gh {
  padding: 6px 11px;
  border-radius: var(--r-sm);
  color: var(--muted);
  font-size: 14px;
  font-weight: 450;
  white-space: nowrap;
  transition: color .15s, background .15s;
}
.nav-links a:hover, .nav-gh:hover { color: var(--ink); }

.nav-right { margin-left: auto; display: flex; align-items: center; gap: 6px; flex: none; }

.nav-gh { display: inline-flex; align-items: center; justify-content: center; }

.icon-btn {
  width: 34px; height: 34px;
  display: inline-flex; align-items: center; justify-content: center;
  border: none; background: transparent;
  border-radius: var(--r-md);
  color: var(--muted);
  cursor: pointer;
  transition: color .15s, background .15s;
}
.icon-btn:hover { color: var(--ink); background: color-mix(in srgb, var(--ink) 7%, transparent); }

/* O ícone troca com o tema: sol no escuro (clique -> claro). */
.icon-moon { display: none; }
.light .icon-sun { display: none; }
.light .icon-moon { display: inline; }

.nav .btn-primary { padding: 7px 14px; font-size: 14px; }

/* --------------------------------------------------------------------------
   4. BOTÕES
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: var(--r-md);
  font-family: inherit;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.006em;
  white-space: nowrap;
  cursor: pointer;
  transition: transform .15s, background .15s, border-color .15s, color .15s;
}
.btn:active { transform: scale(.97); }
.btn:focus-visible { outline: 2px solid var(--accent-ring); outline-offset: 2px; }

.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: var(--accent-hover); }

.btn-ghost {
  background: transparent;
  border-color: var(--hairline-strong);
  color: var(--ink);
}
.btn-ghost:hover { background: color-mix(in srgb, var(--ink) 6%, transparent); }

/* --------------------------------------------------------------------------
   5. HERO — o glow de fundo é um artefato de token (--glow-*), não imagem.
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  text-align: center;
  padding: calc(var(--nav-h) + 88px) 0 108px;
}

.hero-aura {
  position: absolute;
  inset: 0 0 auto 0;
  height: 640px;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(58% 46% at 50% -6%, color-mix(in srgb, var(--glow-a) 42%, transparent), transparent 72%),
    radial-gradient(34% 30% at 68% 22%, color-mix(in srgb, var(--glow-b) 26%, transparent), transparent 70%),
    radial-gradient(30% 26% at 30% 16%, color-mix(in srgb, var(--glow-a) 20%, transparent), transparent 70%);
  opacity: var(--glow-op);
  -webkit-mask-image: linear-gradient(to bottom, #000 62%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 62%, transparent 100%);
}

.hero-inner { position: relative; z-index: 1; }

.hero-spec {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 12.5px;
  letter-spacing: .03em;
  color: var(--muted);
}
.hero-spec b { color: var(--ink); font-weight: 500; }
.hero-spec .sep { color: var(--faint); }

.hero h1 {
  margin: 22px 0 0;
  font-size: clamp(40px, 6.4vw, 74px);
  font-weight: 620;
  letter-spacing: -0.028em;
  line-height: 1.04;
  text-wrap: balance;
}

.accent-word { color: var(--accent); }
@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .accent-word {
    background: linear-gradient(100deg, color-mix(in srgb, var(--accent) 88%, #fff) 0%, var(--accent) 42%, var(--glow-b) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
}

.hero .lede {
  margin: 22px auto 0;
  max-width: 54ch;
  font-size: clamp(16px, 2.1vw, 19px);
  color: var(--muted);
  text-wrap: pretty;
}
.hero .lede b { color: var(--ink); font-weight: 600; }

.cta-row {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 12px;
}

/* Comando copiável: mono, com botão de copiar que vira .done no sucesso */
.brew {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 7px 7px 14px;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-md);
  background: var(--surface-2);
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--ink);
}
.brew .sigil { color: var(--accent); }
.copy-btn {
  width: 30px; height: 30px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--hairline);
  border-radius: var(--r-sm);
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  transition: color .15s, background .15s, border-color .15s;
}
.copy-btn:hover { color: var(--ink); background: var(--surface-2); }
.copy-btn.done { color: var(--accent); border-color: var(--accent); }
.copy-btn svg { width: 15px; height: 15px; }

.hero-foot {
  margin-top: 26px;
  color: var(--faint);
  font-size: 13px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px 22px;
}
.foot-os-row { display: inline-flex; align-items: center; gap: 14px; }
.foot-os { position: relative; cursor: default; }
.foot-os .foot-tip {
  position: absolute;
  bottom: calc(100% + 9px);
  left: 50%;
  transform: translateX(-50%);
  padding: 5px 9px;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-sm);
  background: var(--surface-2);
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity .15s;
}
.foot-os:hover .foot-tip,
.foot-os:focus-visible .foot-tip { opacity: 1; }
.foot-lic { font-size: 12.5px; }

/* --------------------------------------------------------------------------
   6. SHOT — a moldura de app do hero. O halo atrás é o artefato-assinatura;
   o miolo é um mock de produto em HTML/CSS (sem imagem).
   -------------------------------------------------------------------------- */

.shot-wrap { position: relative; margin-top: 72px; }

.shot { position: relative; max-width: 1020px; margin: 0 auto; }

.shot-halo {
  position: absolute;
  inset: -12% -8% -18% -8%;
  background:
    radial-gradient(52% 52% at 50% 44%, color-mix(in srgb, var(--glow-a) 55%, transparent), transparent 72%),
    radial-gradient(30% 34% at 74% 60%, color-mix(in srgb, var(--glow-b) 34%, transparent), transparent 70%);
  filter: blur(46px);
  opacity: calc(var(--glow-op) + .12);
  pointer-events: none;
}

.frame {
  position: relative;
  z-index: 1;
  text-align: left;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-xl);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, .04),
    0 34px 90px -44px rgba(0, 0, 0, .9);
  overflow: hidden;
}

.frame-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  height: 44px;
  padding: 0 16px;
  border-bottom: 1px solid var(--hairline);
  background: color-mix(in srgb, var(--band) 80%, var(--surface));
}

.frame-dots { display: inline-flex; gap: 6px; flex: none; }
.frame-dots i {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--hairline-strong);
}
.frame-dots i:nth-child(1) { background: color-mix(in srgb, #d97b6c 76%, var(--hairline-strong)); }
.frame-dots i:nth-child(2) { background: color-mix(in srgb, #d9b26a 76%, var(--hairline-strong)); }
.frame-dots i:nth-child(3) { background: color-mix(in srgb, #7fbf8e 76%, var(--hairline-strong)); }

.frame-addr {
  flex: 1;
  max-width: 320px;
  margin: 0 auto;
  padding: 4px 14px;
  border: 1px solid var(--hairline);
  border-radius: var(--r-pill);
  background: var(--surface-2);
  color: var(--faint);
  font-size: 11.5px;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.frame-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: none;
  font-size: 11.5px;
  color: var(--muted);
}
.frame-live i {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 10px color-mix(in srgb, var(--ok) 70%, transparent);
}

.frame-body {
  display: grid;
  grid-template-columns: 170px 1fr 250px;
  min-height: 392px;
}

/* Coluna esquerda: a rail de navegação do mock */
.f-rail {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 12px;
  border-right: 1px solid var(--hairline);
  background: color-mix(in srgb, var(--band) 62%, transparent);
}
.f-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 10px;
  border-radius: var(--r-sm);
  color: var(--muted);
  font-size: 13px;
}
.f-item.is-on {
  background: var(--accent-soft);
  color: var(--ink);
}
.f-item svg { flex: none; opacity: .9; }

/* Coluna central: a conversa/trabalho do mock */
.f-main {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 24px 26px;
  justify-content: flex-end;
}

.f-msg { display: flex; align-items: flex-end; gap: 10px; }
.f-msg-right { justify-content: flex-end; }

.f-avatar {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--accent), var(--glow-b));
  flex: none;
}

.f-bubble {
  max-width: 74%;
  padding: 9px 14px;
  border-radius: 12px 12px 12px 4px;
  background: var(--surface-2);
  border: 1px solid var(--hairline);
  font-size: 13.5px;
  color: var(--ink);
}
.f-bubble-accent {
  border-radius: 12px 12px 4px 12px;
  background: var(--accent);
  border-color: transparent;
  color: var(--on-accent);
}

.f-card {
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  background: color-mix(in srgb, var(--band) 66%, transparent);
  padding: 14px 16px;
}
.f-card-head { display: flex; align-items: center; gap: 9px; }
.f-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--info);
  box-shadow: 0 0 10px color-mix(in srgb, var(--info) 70%, transparent);
  flex: none;
}
.f-card-title { font-size: 13.5px; font-weight: 550; margin-right: auto; }
.f-progress {
  margin-top: 12px;
  height: 4px;
  border-radius: var(--r-pill);
  background: var(--surface-2);
  overflow: hidden;
}
.f-progress i {
  display: block;
  height: 100%;
  width: 72%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--glow-b));
}
.f-card-meta { margin-top: 10px; font-size: 11px; color: var(--faint); }

/* Coluna direita: preview com a cena noturna em CSS */
.f-side {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px;
  border-left: 1px solid var(--hairline);
  background: color-mix(in srgb, var(--band) 62%, transparent);
}

.f-scene {
  position: relative;
  display: block;
  aspect-ratio: 4 / 3;
  border-radius: var(--r-md);
  border: 1px solid var(--hairline-strong);
  overflow: hidden;
  background: linear-gradient(180deg, #232a4d 0%, #131735 44%, #0a0c1c 100%);
}
.f-scene::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 72% 26%, color-mix(in srgb, var(--moon) 90%, transparent), transparent 42%);
}
.f-scene::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 62%;
  background: #070910;
  clip-path: polygon(0 82%, 13% 46%, 29% 74%, 45% 30%, 63% 68%, 79% 40%, 100% 76%, 100% 100%, 0 100%);
}
.f-moon {
  position: absolute;
  top: 22%;
  right: 24%;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--moon);
  box-shadow: 0 0 18px 4px color-mix(in srgb, var(--moon) 55%, transparent);
}

.f-side-chips { display: flex; gap: 6px; }
.f-side-meta { font-size: 11px; color: var(--faint); }

/* --------------------------------------------------------------------------
   7. MOCKS — peças compartilhadas entre o shot e os cards de feature.
   -------------------------------------------------------------------------- */

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: var(--r-pill);
  border: 1px solid var(--hairline);
  background: var(--surface-2);
  color: var(--muted);
  font-size: 11.5px;
  font-weight: 520;
  letter-spacing: -0.004em;
  white-space: nowrap;
}
.chip.ok {
  color: var(--ok);
  border-color: color-mix(in srgb, var(--ok) 32%, transparent);
  background: color-mix(in srgb, var(--ok) 11%, transparent);
}
.chip.busy {
  color: var(--busy);
  border-color: color-mix(in srgb, var(--busy) 32%, transparent);
  background: color-mix(in srgb, var(--busy) 11%, transparent);
}
.chip.info {
  color: var(--info);
  border-color: color-mix(in srgb, var(--info) 32%, transparent);
  background: color-mix(in srgb, var(--info) 11%, transparent);
}
.chip .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: chip-pulse 2.2s ease-in-out infinite;
}
@keyframes chip-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .35; }
}

/* --------------------------------------------------------------------------
   8. FEATURES — grid 2x2 com wells de mock. Os cards são superfícies
   leves; o well é o palco da prova.
   -------------------------------------------------------------------------- */

.section { padding: 96px 0; position: relative; }

.rule { border-top: 1px solid var(--hairline); }
@media (min-width: 1024px) {
  .rule::before, .rule::after {
    content: "+";
    position: absolute;
    top: 0;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 0;
    color: var(--hairline-strong);
    transform: translateY(-0.5px);
    pointer-events: none;
    user-select: none;
  }
  .rule::before { left: 0; transform: translate(-50%, -0.5px); }
  .rule::after { right: 0; transform: translate(50%, -0.5px); }
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  margin-bottom: 56px;
}
.section-head-copy { max-width: 640px; }
.section-head h2 {
  margin: 0 0 14px;
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 620;
  letter-spacing: -0.024em;
  line-height: 1.1;
  text-wrap: balance;
}
.section-head p { color: var(--muted); font-size: clamp(16px, 1.8vw, 18px); text-wrap: pretty; }

.spec-line {
  flex: none;
  padding-bottom: 6px;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--faint);
  white-space: nowrap;
}

.feat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--hairline);
  border-radius: var(--r-xl);
  background: color-mix(in srgb, var(--surface) 58%, transparent);
  overflow: hidden;
  transition: transform .22s cubic-bezier(.2, .7, .2, 1), border-color .22s, background .22s;
}
.card:hover {
  transform: translateY(-2px);
  border-color: var(--hairline-strong);
  background: color-mix(in srgb, var(--surface) 82%, transparent);
}

.well {
  display: grid;
  align-content: center;
  gap: 9px;
  min-height: 252px;
  padding: 26px;
  border-bottom: 1px solid var(--hairline);
  background:
    radial-gradient(120% 90% at 50% -10%, color-mix(in srgb, var(--glow-a) 9%, transparent), transparent 70%),
    color-mix(in srgb, var(--band) 82%, var(--canvas));
}

.card-body { padding: 20px 26px 24px; }
.card h3 { font-size: 17px; font-weight: 620; letter-spacing: -0.015em; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 14.5px; text-wrap: pretty; }

/* 8a. Mock "runs": linhas com status */
.mock { display: grid; gap: 9px; }
.mr-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 13px;
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  background: color-mix(in srgb, var(--surface) 78%, transparent);
}
.mr-name { font-size: 13.5px; color: color-mix(in srgb, var(--ink) 84%, transparent); }
.mr-meta { font-size: 11px; color: var(--faint); padding-left: 3px; }

/* 8b. Mock "painel": busca + linhas com switch */
.mp-search {
  padding: 9px 13px;
  border: 1px dashed var(--hairline-strong);
  border-radius: var(--r-md);
  color: var(--faint);
  font-size: 12.5px;
}
.mp-row {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 13px;
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  background: color-mix(in srgb, var(--surface) 78%, transparent);
}
.mp-mark {
  width: 28px; height: 28px;
  display: grid; place-items: center;
  border: 1px solid var(--hairline-strong);
  border-radius: 9px;
  background: var(--surface-2);
  color: var(--muted);
  flex: none;
}
.mp-copy { display: grid; gap: 1px; margin-right: auto; min-width: 0; }
.mp-copy b { font-size: 13px; font-weight: 550; }
.mp-copy i { font-style: normal; font-size: 11.5px; color: var(--faint); }

.sw {
  position: relative;
  width: 32px; height: 18px;
  border-radius: var(--r-pill);
  border: 1px solid var(--hairline-strong);
  background: var(--surface-2);
  flex: none;
}
.sw::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--muted);
  transition: transform .15s;
}
.sw.is-on { background: var(--accent); border-color: transparent; }
.sw.is-on::after { transform: translateX(14px); background: var(--on-accent); }

/* 8c. Mock "conexões": contas + barra de progresso */
.mc-row {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 9px 13px;
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  background: color-mix(in srgb, var(--surface) 78%, transparent);
}
.mc-mark {
  width: 28px; height: 28px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--accent-soft), var(--surface-2));
  border: 1px solid var(--hairline-strong);
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: color-mix(in srgb, var(--accent) 70%, var(--ink));
  flex: none;
}
.mc-name { font-size: 13.5px; margin-right: auto; }
.mc-bar {
  width: 86px; height: 5px;
  border-radius: var(--r-pill);
  background: var(--surface-2);
  overflow: hidden;
  flex: none;
}
.mc-bar i {
  display: block;
  height: 100%;
  width: 62%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--glow-b));
}
.mc-pct { font-size: 11px; color: var(--faint); flex: none; }

/* 8d. Mock "changelog": mono com badges */
.mn-path { font-size: 11.5px; color: var(--faint); padding-left: 2px; }
.mn-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 12px;
  border-radius: var(--r-sm);
  background: color-mix(in srgb, var(--surface) 78%, transparent);
  border: 1px solid var(--hairline);
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
}
.mn-line:nth-child(2) {
  background: color-mix(in srgb, var(--accent) 9%, transparent);
  border-color: color-mix(in srgb, var(--accent) 26%, transparent);
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   9. INTERFACE — a seção-showcase: ribbons de gradiente ao fundo, chips de
   categoria, fileira de ícones, hub e o diagrama de ferramentas conectadas.
   Tudo artefato: CSS para as faixas, SVG para a fiação. Sem imagem.
   -------------------------------------------------------------------------- */

.int { position: relative; overflow: hidden; }

.ribbons {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.ribbon {
  position: absolute;
  top: 4%;
  width: 54%;
  height: 320px;
  border-radius: 50%;
  background: linear-gradient(95deg, transparent 0%, var(--glow-a) 42%, var(--glow-b) 72%, transparent 100%);
  filter: blur(72px) saturate(135%);
  opacity: var(--ribbon-op);
  animation: ribbon-drift 22s ease-in-out infinite alternate;
}
.rb-l { left: -17%; transform: rotate(-7deg); }
.rb-r { right: -17%; transform: rotate(7deg); animation-delay: -11s; }
@keyframes ribbon-drift {
  from { translate: 0 -16px; }
  to { translate: 0 20px; }
}

.int-inner { position: relative; z-index: 1; }

.int-head { text-align: center; max-width: 720px; margin: 0 auto; }
.int-head h2 {
  margin: 16px 0 0;
  font-size: clamp(30px, 4.2vw, 46px);
  font-weight: 620;
  letter-spacing: -0.026em;
  line-height: 1.08;
  text-wrap: balance;
}
.int-lede {
  margin: 18px auto 0;
  max-width: 56ch;
  color: var(--muted);
  font-size: clamp(15px, 1.8vw, 17px);
  text-wrap: pretty;
}

.chips {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.chip-ico {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 15px;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-pill);
  background: color-mix(in srgb, var(--surface-2) 74%, transparent);
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
}
.chip-ico svg { color: color-mix(in srgb, var(--accent) 72%, var(--ink)); }

/* Fileira de ícones: tiles coloridos por --t-h; decoração pura. */
.icons {
  margin-top: 46px;
  display: flex;
  justify-content: center;
  gap: 14px;
}
.ico {
  width: 48px; height: 48px;
  display: grid; place-items: center;
  border: 1px solid var(--hairline-strong);
  border-radius: 15px;
  background: linear-gradient(160deg, color-mix(in srgb, var(--t-h) 26%, var(--surface-2)), var(--surface-2) 78%);
  color: color-mix(in srgb, var(--t-h) 62%, var(--ink));
  box-shadow: 0 14px 34px -18px color-mix(in srgb, var(--t-h) 65%, transparent);
}
.icons-cap {
  display: block;
  margin-top: 16px;
  text-align: center;
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--faint);
}

/* Diagrama: hub -> fiação -> grade de ferramentas */
.pipeline { margin-top: 34px; text-align: center; }

.hub {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-pill);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  box-shadow: 0 18px 44px -22px color-mix(in srgb, var(--glow-a) 70%, transparent);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.012em;
}
.hub .brand-mark { width: 18px; height: 18px; }

.wires {
  display: block;
  width: min(100%, 980px);
  height: 132px;
  margin: 8px auto 0;
}
.wires path {
  fill: none;
  stroke: var(--wire);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}
.wires .w-faint { opacity: .45; }
.wires circle { fill: color-mix(in srgb, var(--accent) 55%, var(--hairline-strong)); }

.tool-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  max-width: 980px;
  margin: 18px auto 0;
  text-align: left;
}
.tool {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 12px 14px;
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  background: color-mix(in srgb, var(--surface) 62%, transparent);
  transition: border-color .18s, background .18s, transform .18s cubic-bezier(.2, .7, .2, 1);
}
.tool:hover {
  transform: translateY(-1px);
  border-color: var(--hairline-strong);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
}
.tool-mark {
  width: 30px; height: 30px;
  display: grid; place-items: center;
  border: 1px solid var(--hairline-strong);
  border-radius: 10px;
  background: linear-gradient(160deg, color-mix(in srgb, var(--t-h) 24%, var(--surface-2)), var(--surface-2) 80%);
  color: color-mix(in srgb, var(--t-h) 58%, var(--ink));
  flex: none;
}
.tool-copy { display: grid; gap: 0; min-width: 0; }
.tool-copy b { font-size: 13.5px; font-weight: 570; }
.tool-copy i { font-style: normal; font-size: 10.5px; color: var(--faint); }

/* --------------------------------------------------------------------------
   10. DOWNLOAD — os cards de OS. Os botões resolvem o último release no
   cliente (assets/js/latest-release.mjs, Nível 1.5 — ver download/README.md).
   -------------------------------------------------------------------------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.install-card {
  display: flex;
  flex-direction: column;
  padding: 26px 24px;
  background: var(--canvas);
}
.install-os { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.os-mark { width: 20px; height: 20px; color: var(--ink); flex: none; }
.install-card h3 { font-size: 17px; font-weight: 620; letter-spacing: -0.015em; }
.install-card p { margin: 6px 0 18px; color: var(--muted); font-size: 14.5px; text-wrap: pretty; }
/* o botão fica ancorado no fundo do card: os três alinham entre si mesmo
   se a descrição ocupar mais linhas em uma largura intermediaria */
.install-dl { align-self: flex-start; margin-top: auto; }

.install-note {
  margin-top: 20px;
  font-size: 12.5px;
  color: var(--faint);
  text-align: center;
}
.install-note code {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 2px 6px;
  border-radius: var(--r-xs);
  background: color-mix(in srgb, var(--ink) 6%, transparent);
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   11. CTA — a faixa com starfield. As estrelas são duas camadas de
   radial-gradients repetidos (tiles), com deriva lenta; sob reduced motion,
   ficam paradas. O tom das estrelas é token (--star-*), então o tema claro
   acompanha.
   -------------------------------------------------------------------------- */

.cta {
  position: relative;
  overflow: hidden;
  padding: 116px 0 122px;
  text-align: center;
  border-top: 1px solid var(--hairline);
  background:
    radial-gradient(60% 70% at 50% 118%, color-mix(in srgb, var(--glow-a) 24%, transparent), transparent 70%),
    var(--band);
}

.stars { position: absolute; inset: 0; pointer-events: none; }
.stars::before,
.stars::after {
  content: "";
  position: absolute;
  inset: 0;
}
.stars::before {
  background-image:
    radial-gradient(1.4px 1.4px at 42px 66px, var(--star-a), transparent 100%),
    radial-gradient(1px 1px at 156px 24px, var(--star-b), transparent 100%),
    radial-gradient(1.6px 1.6px at 268px 148px, var(--star-a), transparent 100%),
    radial-gradient(1px 1px at 218px 296px, var(--star-b), transparent 100%),
    radial-gradient(1.2px 1.2px at 82px 224px, var(--star-a), transparent 100%),
    radial-gradient(1px 1px at 336px 64px, var(--star-b), transparent 100%),
    radial-gradient(1.5px 1.5px at 384px 232px, var(--star-a), transparent 100%),
    radial-gradient(1px 1px at 300px 352px, var(--star-b), transparent 100%),
    radial-gradient(1.2px 1.2px at 128px 384px, var(--star-a), transparent 100%),
    radial-gradient(1px 1px at 30px 330px, var(--star-b), transparent 100%);
  background-size: 420px 420px;
  animation: star-drift 140s linear infinite;
}
.stars::after {
  background-image:
    radial-gradient(1.8px 1.8px at 60px 90px, var(--star-a), transparent 100%),
    radial-gradient(1.2px 1.2px at 320px 60px, var(--star-b), transparent 100%),
    radial-gradient(1.4px 1.4px at 180px 260px, var(--star-a), transparent 100%),
    radial-gradient(1px 1px at 420px 210px, var(--star-b), transparent 100%),
    radial-gradient(1.6px 1.6px at 500px 130px, var(--star-a), transparent 100%),
    radial-gradient(1px 1px at 260px 470px, var(--star-b), transparent 100%),
    radial-gradient(1.3px 1.3px at 540px 400px, var(--star-a), transparent 100%);
  background-size: 620px 620px;
  opacity: .62;
  animation: star-drift-lg 220s linear infinite reverse;
}
@keyframes star-drift {
  from { background-position: 0 0; }
  to { background-position: 420px 420px; }
}
@keyframes star-drift-lg {
  from { background-position: 0 0; }
  to { background-position: 620px 620px; }
}

.cta-inner { position: relative; z-index: 1; }
.cta h2 {
  font-size: clamp(32px, 4.6vw, 52px);
  font-weight: 620;
  letter-spacing: -0.028em;
  line-height: 1.06;
  text-wrap: balance;
}
.cta p {
  margin: 18px auto 0;
  max-width: 48ch;
  color: var(--muted);
  font-size: clamp(15px, 1.9vw, 17.5px);
  text-wrap: pretty;
}
.cta .cta-row { margin-top: 30px; }
.cta-note {
  margin-top: 26px;
  font-size: 11.5px;
  letter-spacing: .05em;
  color: var(--faint);
}

/* --------------------------------------------------------------------------
   12. FAQ — <details> nativo. Zero JS.
   -------------------------------------------------------------------------- */

.faq-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 64px; align-items: start; }
.faq-head h2 {
  margin: 0 0 16px;
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 620;
  letter-spacing: -0.024em;
  line-height: 1.1;
  text-wrap: balance;
}
.faq-head p { color: var(--muted); font-size: 15px; max-width: 34ch; text-wrap: pretty; }
.faq-head a { color: var(--accent); }
.faq-head a:hover { text-decoration: underline; }

.faq-list { border-top: 1px solid var(--hairline); }
.faq-item { border-bottom: 1px solid var(--hairline); }
.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 22px 4px;
  list-style: none;
  cursor: pointer;
  font-size: 17px;
  font-weight: 620;
  letter-spacing: -0.012em;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-chev { color: var(--muted); transition: transform .2s; font-family: var(--font-mono); }
.faq-item[open] .faq-chev { transform: rotate(45deg); }
.faq-a { padding: 0 4px 24px; color: var(--muted); font-size: 15.5px; text-wrap: pretty; }

/* --------------------------------------------------------------------------
   13. FOOTER + PAISAGEM — as cristas fecham a página como o horizonte da
   cena do shot; as cores são tokens (--land-*), então o tema claro acompanha.
   -------------------------------------------------------------------------- */

footer {
  position: relative;
  border-top: 1px solid var(--hairline);
  padding: 72px 0 0;
  overflow: hidden;
}
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
.foot-brand p { margin-top: 14px; max-width: 300px; color: var(--muted); font-size: 14px; text-wrap: pretty; }
.foot-col h5 {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--faint);
}
.foot-col a { display: block; padding: 6px 0; color: var(--muted); font-size: 14.5px; transition: color .15s; }
.foot-col a:hover { color: var(--accent); }

.foot-bot {
  margin-top: 52px;
  padding-top: 24px;
  border-top: 1px solid var(--hairline);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--muted);
}

.landscape {
  position: relative;
  margin-top: 56px;
  pointer-events: none;
}
.landscape::before {
  content: "";
  position: absolute;
  inset: -60% 0 auto 0;
  height: 190%;
  background: radial-gradient(46% 58% at 50% 76%, color-mix(in srgb, var(--glow-a) 30%, transparent), transparent 72%);
  opacity: calc(var(--glow-op) + .06);
}
.landscape svg { width: 100%; height: clamp(140px, 20vw, 240px); }
.landscape .l3 { fill: var(--land-3); }
.landscape .l2 { fill: var(--land-2); }
.landscape .l1 { fill: var(--land-1); }

/* --------------------------------------------------------------------------
   14. GRÃO — textura fixa sobre a página inteira. É um data-URI SVG de
   feTurbulence (um tile), sem filtro ao vivo: custo de pintura uma vez.
   -------------------------------------------------------------------------- */

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 130;
  pointer-events: none;
  opacity: var(--grain-op);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='260' height='260'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='260' height='260' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 260px 260px;
}

/* --------------------------------------------------------------------------
   15. BREAKPOINTS — a nav é subtrativa; o conteúdo só empilha.
   1080 ajusta o shot; 920 é o divisor dos cards; 680/600/380 são a nav.
   -------------------------------------------------------------------------- */

@media (max-width: 1080px) {
  .frame-body { grid-template-columns: 170px 1fr; }
  .f-side { display: none; }
}

@media (max-width: 1023px) {
  .spec-line { display: none; }
  .tool-grid { grid-template-columns: repeat(2, 1fr); }
  .wires { height: 96px; }
}

@media (max-width: 920px) {
  .nav-links { display: none; }

  .section { padding: 80px 0; }
  .section-head { display: block; margin-bottom: 44px; }
  .faq-grid { grid-template-columns: 1fr; gap: 36px; }
  .card-grid.card-grid-3 { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
}

@media (max-width: 820px) {
  .feat-grid { grid-template-columns: 1fr; }
  .well { min-height: 0; }
}

@media (max-width: 680px) {
  .section { padding: 68px 0; }
  .hero { padding-top: calc(var(--nav-h) + 64px); padding-bottom: 84px; }
  .nav-inner { gap: 14px; padding: 0 20px; }
  .wrap { padding: 0 20px; }
  .foot-grid { grid-template-columns: 1fr; }
  .shot-wrap { margin-top: 56px; }
  .frame-body { grid-template-columns: 1fr; min-height: 0; }
  .f-rail { display: none; }
  .f-main { padding: 20px; }
  .cta { padding: 88px 0 96px; }
  .icons { flex-wrap: wrap; }
}

@media (max-width: 600px) {
  .nav-gh { display: none; }
  .tool-grid { grid-template-columns: 1fr; }
  .wires { display: none; }
}

@media (max-width: 380px) {
  .icon-btn { display: none; }
  .nav-inner { padding: 0 16px; }
  .wrap { padding: 0 16px; }
}

/* --------------------------------------------------------------------------
   16. MOVIMENTO REDUZIDO
   Quem pediu menos animação pediu menos animação em tudo: os artefatos
   continuam (são estáticos por natureza), mas param de se mexer.
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .icon-btn, .copy-btn, .card, .tool, .faq-chev, .sw::after, .foot-os .foot-tip, .nav {
    transition: none;
  }
  .card:hover { transform: none; }
  .tool:hover { transform: none; }
  .btn:active { transform: none; }
  .ribbon { animation: none; }
  .stars::before, .stars::after { animation: none; }
  .chip .dot { animation: none; }
}