/* ==========================================================================
   Chalé Rural Construções — Design System
   Site institucional estático: HTML + CSS + JS puro, sem dependências.
   Sumário:
     1. Tokens          6. Header / navegação
     2. Reset           7. Hero
     3. Layout          8. Seções de conteúdo
     4. Tipografia      9. Galeria + lightbox
     5. Botões         10. Formulário, rodapé, flutuantes
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Tokens
   -------------------------------------------------------------------------- */
:root {
  color-scheme: light;

  /* Cores — tema claro */
  --bg:            #FBF9F5;
  --bg-alt:        #F4F0E9;
  --surface:       #FFFFFF;
  --surface-2:     #F7F4EE;
  --ink:           #131816;
  --ink-2:         #4B534F;
  --ink-3:         #696F6B; /* AA (>=4.5:1) sobre --bg, --surface e --bg-alt */
  --line:          rgba(19, 24, 22, .10);
  --line-strong:   rgba(19, 24, 22, .18);

  --brand:         #1F4D3D;
  --brand-hover:   #173C2F;
  --brand-soft:    #E7EFE9;
  --brand-ink:     #10362A;

  --accent:        #C0703A;
  --accent-hover:  #A85E2D;
  --accent-soft:   #F7EBE0;

  --on-brand:      #F6F2EA;

  /* Superfícies escuras (seções invertidas) */
  --dark:          #101614;
  --dark-2:        #17201D;
  --dark-line:     rgba(246, 242, 234, .14);
  --dark-ink:      #F4F1EA;
  --dark-ink-2:    #A9B3AE;

  /* Tipografia */
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-display: "Fraunces", ui-serif, Georgia, "Times New Roman", serif;

  --fs-eyebrow: .75rem;
  --fs-small:   .875rem;
  --fs-body:    1rem;
  --fs-lead:    clamp(1.0625rem, .98rem + .42vw, 1.25rem);
  --fs-h4:      clamp(1.0625rem, 1rem + .3vw, 1.25rem);
  --fs-h3:      clamp(1.25rem, 1.1rem + .6vw, 1.625rem);
  --fs-h2:      clamp(1.875rem, 1.45rem + 1.9vw, 3.125rem);
  --fs-h1:      clamp(2.5rem, 1.55rem + 4.3vw, 5rem);

  /* Espaçamento — escala única usada em todo o site */
  --s-1:  .25rem;
  --s-2:  .5rem;
  --s-3:  .75rem;
  --s-4:  1rem;
  --s-5:  1.5rem;
  --s-6:  2rem;
  --s-7:  2.5rem;
  --s-8:  3.5rem;
  --s-9:  5rem;

  --section-y: clamp(4.5rem, 3rem + 7vw, 8rem);
  --gap:       clamp(1.25rem, .9rem + 1.2vw, 2rem);

  /* Layout */
  --container: 1200px;
  --gutter:    clamp(1.25rem, .75rem + 2.2vw, 2.5rem);
  --header-h:  72px;

  /* Formas */
  --r-sm:   10px;
  --r-md:   16px;
  --r-lg:   24px;
  --r-xl:   32px;
  --r-pill: 999px;

  /* Sombras */
  --shadow-sm: 0 1px 2px rgba(19, 24, 22, .05), 0 2px 8px rgba(19, 24, 22, .04);
  --shadow-md: 0 4px 12px rgba(19, 24, 22, .06), 0 12px 32px rgba(19, 24, 22, .07);
  --shadow-lg: 0 8px 24px rgba(19, 24, 22, .08), 0 28px 64px rgba(19, 24, 22, .12);

  /* Movimento */
  --ease:     cubic-bezier(.22, .61, .36, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --dur: .32s;
}

:root[data-theme="dark"] {
  color-scheme: dark;

  --bg:          #0E1412;
  --bg-alt:      #131A18;
  --surface:     #161E1B;
  --surface-2:   #1B2421;
  --ink:         #F1EEE7;
  --ink-2:       #B2BBB6;
  --ink-3:       #8A938E;
  --line:        rgba(241, 238, 231, .12);
  --line-strong: rgba(241, 238, 231, .22);

  --brand:       #4E9C7C;
  --brand-hover: #5FB08E;
  --brand-soft:  rgba(78, 156, 124, .14);
  --brand-ink:   #9FD3BC;

  --accent:      #DC8B54;
  --accent-hover:#E89C68;
  --accent-soft: rgba(220, 139, 84, .14);

  --on-brand:    #0B1210;

  --dark:        #0B100E;
  --dark-2:      #121917;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, .34), 0 12px 32px rgba(0, 0, 0, .3);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, .4), 0 28px 64px rgba(0, 0, 0, .45);
}

/* --------------------------------------------------------------------------
   2. Reset
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

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

body {
  min-height: 100svh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.65;
  font-synthesis-weight: none;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
body.is-locked { overflow: hidden; }

img, svg, video, canvas { display: block; max-width: 100%; }
img { height: auto; background-color: var(--surface-2); }

input, button, textarea, select { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -.02em;
  text-wrap: balance;
}
p { text-wrap: pretty; }
ul, ol { list-style: none; padding: 0; }

:where(a, button, input, textarea, select, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection { background: var(--brand); color: var(--on-brand); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}

/* --------------------------------------------------------------------------
   3. Layout
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); scroll-margin-top: calc(var(--header-h) + 16px); }
.section--tight { padding-block: clamp(3rem, 2rem + 5vw, 5rem); }
.section--alt { background: var(--bg-alt); }
.section--dark {
  background: var(--dark);
  --ink: var(--dark-ink);
  --ink-2: var(--dark-ink-2);
  --ink-3: var(--dark-ink-2);
  --line: var(--dark-line);
  --line-strong: rgba(246, 242, 234, .26);
  --surface: var(--dark-2);
  --surface-2: #1D2725;
  --brand: #6FBF9B;
  --brand-soft: rgba(111, 191, 155, .14);
  --accent: #E09159;
  --accent-soft: rgba(224, 145, 89, .14);
  --on-brand: #0B1210;
  color: var(--ink);
}

.skip-link {
  position: fixed;
  top: var(--s-3);
  left: var(--s-3);
  z-index: 999;
  padding: .7rem 1.1rem;
  background: var(--brand);
  color: var(--on-brand);
  border-radius: var(--r-sm);
  font-weight: 600;
  transform: translateY(-180%);
  transition: transform var(--dur) var(--ease);
}
.skip-link:focus-visible { transform: translateY(0); }

/* --------------------------------------------------------------------------
   4. Tipografia utilitária
   -------------------------------------------------------------------------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--brand);
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: .6;
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  max-width: 64ch;
  margin-bottom: clamp(2.5rem, 2rem + 2vw, 4rem);
}
.section-head--center {
  align-items: center;
  text-align: center;
  margin-inline: auto;
}
.section-head--center .eyebrow::after {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: .6;
}
.section-head h2 { font-size: var(--fs-h2); }
.section-head p { font-size: var(--fs-lead); color: var(--ink-2); max-width: 58ch; }

.lead  { font-size: var(--fs-lead); color: var(--ink-2); }
.muted { color: var(--ink-2); }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   5. Botões
   -------------------------------------------------------------------------- */
.btn {
  --btn-bg: var(--brand);
  --btn-fg: var(--on-brand);
  --btn-bd: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  padding: .875rem 1.5rem;
  min-height: 48px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid var(--btn-bd);
  border-radius: var(--r-pill);
  font-size: .9375rem;
  font-weight: 600;
  letter-spacing: -.01em;
  white-space: nowrap;
  transition: background-color var(--dur) var(--ease),
              color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              transform .18s var(--ease),
              box-shadow var(--dur) var(--ease);
}
.btn:hover  { --btn-bg: var(--brand-hover); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); }
.btn svg    { width: 18px; height: 18px; flex: none; }

.btn--accent { --btn-bg: var(--accent); --btn-fg: #fff; }
.btn--accent:hover { --btn-bg: var(--accent-hover); }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--ink);
  --btn-bd: var(--line-strong);
}
.btn--ghost:hover { --btn-bg: var(--surface); --btn-bd: var(--brand); --btn-fg: var(--brand); }

.btn--light {
  --btn-bg: rgba(255, 255, 255, .14);
  --btn-fg: #fff;
  --btn-bd: rgba(255, 255, 255, .38);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.btn--light:hover { --btn-bg: #fff; --btn-fg: #10362A; --btn-bd: #fff; }

.btn--sm    { padding: .625rem 1.125rem; min-height: 40px; font-size: .875rem; }
.btn--block { width: 100%; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-weight: 600;
  font-size: .9375rem;
  color: var(--brand);
  transition: gap var(--dur) var(--ease), color var(--dur) var(--ease);
}
.link-arrow svg { width: 16px; height: 16px; transition: transform var(--dur) var(--ease); }
.link-arrow:hover { gap: .75rem; color: var(--accent); }
.link-arrow:hover svg { transform: translateX(2px); }

/* --------------------------------------------------------------------------
   6. Header / navegação
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
  border-bottom: 1px solid transparent;
}
.header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(10, 14, 12, .55), rgba(10, 14, 12, 0));
  opacity: 1;
  transition: opacity var(--dur) var(--ease);
  pointer-events: none;
}
.header.is-stuck {
  background: var(--bg); /* usado quando color-mix não é suportado */
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom-color: var(--line);
  box-shadow: var(--shadow-sm);
}
.header.is-stuck::before { opacity: 0; }

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-5);
  width: 100%;
  position: relative;
}

/* Marca */
.brand {
  display: inline-flex;
  align-items: center;
  gap: .625rem;
  flex: none;
  color: #fff;
  transition: color var(--dur) var(--ease);
}
.header.is-stuck .brand { color: var(--ink); }

/* Símbolo da marca: duas versões de cor sobrepostas, alternadas conforme o fundo */
.brand__mark {
  position: relative;
  display: block;
  flex: none;
  width: 74px;
  height: 36px;
}
.brand__mark img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: left center;
  background: none;
  transition: opacity var(--dur) var(--ease);
}
/* Fundo claro (padrão): versão escura */
.brand__mark .m-light { opacity: 0; }
.brand__mark .m-dark  { opacity: 1; }
/* Sobre a foto do topo, o cabeçalho é transparente: versão clara */
.header:not(.is-stuck) .brand__mark .m-light { opacity: 1; }
.header:not(.is-stuck) .brand__mark .m-dark  { opacity: 0; }
/* Tema escuro: sempre a versão clara */
:root[data-theme="dark"] .brand__mark .m-light { opacity: 1; }
:root[data-theme="dark"] .brand__mark .m-dark  { opacity: 0; }

/* Logo completo do rodapé */
.brand--full { display: block; }
.brand--full img { width: clamp(160px, 40vw, 200px); height: auto; background: none; }
.brand__text { display: flex; flex-direction: column; line-height: 1.05; }
.brand__name {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -.02em;
}
.brand__tag {
  font-size: .625rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  opacity: .72;
}

/* Navegação desktop */
.nav { display: none; }
.nav__list { display: flex; align-items: center; gap: var(--s-1); }
.nav__link {
  position: relative;
  display: block;
  padding: .5rem .75rem;
  font-size: .9375rem;
  font-weight: 500;
  color: rgba(255, 255, 255, .88);
  border-radius: var(--r-sm);
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.header.is-stuck .nav__link { color: var(--ink-2); }
.nav__link::after {
  content: "";
  position: absolute;
  left: .75rem;
  right: .75rem;
  bottom: .25rem;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease-out);
}
.nav__link:hover { color: #fff; }
.header.is-stuck .nav__link:hover { color: var(--ink); }
.nav__link.is-active { color: #fff; }
.header.is-stuck .nav__link.is-active { color: var(--brand); }
.nav__link.is-active::after { transform: scaleX(1); }

.header__actions { display: flex; align-items: center; gap: var(--s-2); flex: none; }

/* Botão ícone (tema / menu) */
.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(255, 255, 255, .28);
  color: #fff;
  transition: background-color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              color var(--dur) var(--ease);
}
.icon-btn:hover { background: rgba(255, 255, 255, .16); }
.header.is-stuck .icon-btn { border-color: var(--line-strong); color: var(--ink); }
.header.is-stuck .icon-btn:hover { background: var(--surface-2); border-color: var(--brand); color: var(--brand); }
.icon-btn svg { width: 19px; height: 19px; }

.theme-toggle .icon-moon { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun  { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

.header .btn--header { display: none; }

/* Hambúrguer */
.burger { position: relative; }
.burger__box { position: relative; width: 18px; height: 12px; }
.burger__box span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform var(--dur) var(--ease-out), opacity .18s var(--ease);
}
.burger__box span:nth-child(1) { top: 0; }
.burger__box span:nth-child(2) { top: 5px; }
.burger__box span:nth-child(3) { top: 10px; }
.burger[aria-expanded="true"] .burger__box span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.burger[aria-expanded="true"] .burger__box span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] .burger__box span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* Barra de progresso de leitura */
.progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 2px;
  width: 100%;
  transform: scaleX(var(--p, 0));
  transform-origin: left;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}
.header.is-stuck .progress { opacity: 1; }

/* Menu mobile */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  grid-template-rows: var(--header-h) 1fr;
  background: var(--bg);
  visibility: hidden;
  opacity: 0;
  transition: opacity .3s var(--ease), visibility .3s var(--ease);
}
.mobile-nav.is-open { visibility: visible; opacity: 1; }
.mobile-nav__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: var(--gutter);
  max-width: var(--container);
  margin-inline: auto;
  width: 100%;
  border-bottom: 1px solid var(--line);
}
.mobile-nav__head .brand { color: var(--ink); }
.mobile-nav__head .icon-btn { border-color: var(--line-strong); color: var(--ink); }
.mobile-nav__body {
  overflow-y: auto;
  padding: var(--s-6) var(--gutter) var(--s-8);
  max-width: var(--container);
  margin-inline: auto;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--s-6);
}
.mobile-nav__list { display: flex; flex-direction: column; }
.mobile-nav__list li { border-bottom: 1px solid var(--line); }
.mobile-nav__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  padding: 1.0625rem .25rem;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -.02em;
  opacity: 0;
  transform: translateY(12px);
}
.mobile-nav.is-open .mobile-nav__link {
  animation: navIn .42s var(--ease-out) forwards;
  animation-delay: calc(var(--i, 0) * 45ms + 90ms);
}
.mobile-nav__link span:last-child { font-family: var(--font-sans); font-size: .75rem; color: var(--ink-3); }
@keyframes navIn { to { opacity: 1; transform: none; } }

.mobile-nav__foot { display: flex; flex-direction: column; gap: var(--s-4); }
.mobile-nav__contact { display: flex; flex-direction: column; gap: var(--s-2); font-size: .9375rem; color: var(--ink-2); }
.mobile-nav__contact a { display: inline-flex; align-items: center; gap: .625rem; }
.mobile-nav__contact svg { width: 17px; height: 17px; color: var(--brand); flex: none; }

/* --------------------------------------------------------------------------
   7. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: min(100svh, 900px);
  padding-top: calc(var(--header-h) + var(--s-8));
  padding-bottom: clamp(2.5rem, 2rem + 3vw, 4rem);
  color: #fff;
  isolation: isolate;
  overflow: hidden;
}
.hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}
.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
}
.hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to top, rgba(9, 13, 11, .92) 0%, rgba(9, 13, 11, .55) 38%, rgba(9, 13, 11, .28) 66%, rgba(9, 13, 11, .5) 100%),
    linear-gradient(to right, rgba(9, 13, 11, .68), rgba(9, 13, 11, .05) 70%);
}
.hero__inner { position: relative; width: 100%; }
.hero__content { max-width: 46rem; display: flex; flex-direction: column; gap: var(--s-5); }
.hero .eyebrow { color: #E9D9C2; }
.hero h1 {
  font-size: var(--fs-h1);
  line-height: 1.02;
  letter-spacing: -.035em;
  text-shadow: 0 2px 30px rgba(0, 0, 0, .35);
}
.hero h1 em {
  font-style: italic;
  font-weight: 500;
  color: #EAC79E;
}
.hero__text {
  font-size: var(--fs-lead);
  color: rgba(255, 255, 255, .88);
  max-width: 46ch;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-2); }

.hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 150px), 1fr));
  gap: var(--s-4);
  margin-top: clamp(2.5rem, 2rem + 3vw, 4rem);
  padding-top: var(--s-5);
  border-top: 1px solid rgba(255, 255, 255, .22);
}
.hero__stat { display: flex; flex-direction: column; gap: .125rem; }
.hero__stat b {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 1.4rem + 1.4vw, 2.5rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.03em;
}
.hero__stat span { font-size: .8125rem; color: rgba(255, 255, 255, .74); line-height: 1.35; }

/* Animação de entrada do hero */
.hero__content > *,
.hero__stats {
  opacity: 0;
  transform: translateY(22px);
  animation: heroIn .8s var(--ease-out) forwards;
}
.hero__content > *:nth-child(1) { animation-delay: .06s; }
.hero__content > *:nth-child(2) { animation-delay: .14s; }
.hero__content > *:nth-child(3) { animation-delay: .22s; }
.hero__content > *:nth-child(4) { animation-delay: .3s; }
.hero__stats { animation-delay: .4s; }
@keyframes heroIn { to { opacity: 1; transform: none; } }

/* Faixa de serviços em movimento */
.marquee {
  --speed: 42s;
  background: var(--brand);
  color: var(--on-brand);
  padding-block: .875rem;
  overflow: hidden;
  border-block: 1px solid rgba(0, 0, 0, .06);
}
.marquee__track {
  display: flex;
  width: max-content;
  gap: 0;
  animation: marquee var(--speed) linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__group {
  display: flex;
  align-items: center;
  gap: var(--s-6);
  padding-right: var(--s-6);
  flex: none;
}
.marquee__item {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  white-space: nowrap;
}
.marquee__item::after {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  opacity: .5;
}
@keyframes marquee { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) {
  .marquee__track { animation: none; }
}

/* --------------------------------------------------------------------------
   8. Seções de conteúdo
   -------------------------------------------------------------------------- */

/* --- Cards de serviço --- */
/* Colunas fixas por faixa: os cards fecham sempre em linhas completas */
.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: transform var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card__media { position: relative; aspect-ratio: 3 / 2; overflow: hidden; }
.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease-out);
}
.card:hover .card__media img { transform: scale(1.06); }
.card__badge {
  position: absolute;
  top: var(--s-3);
  left: var(--s-3);
  display: inline-flex;
  align-items: center;
  gap: .375rem;
  padding: .35rem .7rem;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #10362A;
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.card__body {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  padding: var(--s-5);
  flex: 1;
}
.card__body h3 { font-size: var(--fs-h4); }
.card__body p { font-size: .9375rem; color: var(--ink-2); flex: 1; }
.card__link {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .875rem;
  font-weight: 600;
  color: var(--brand);
}
.card__link svg { width: 15px; height: 15px; transition: transform var(--dur) var(--ease); }
.card:hover .card__link svg { transform: translateX(3px); }
.card__link::after {
  content: "";
  position: absolute;
  inset: 0;
}

/* --- Bloco dividido (imagem + texto) --- */
.split {
  display: grid;
  gap: clamp(2rem, 1.5rem + 4vw, 4.5rem);
  align-items: center;
}
.split__media { position: relative; }
.split__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-md);
}
.split__media--stack { display: grid; gap: var(--s-4); }
.split__media--stack img { aspect-ratio: 3 / 2; }

.split__badge {
  position: absolute;
  right: var(--s-4);
  bottom: var(--s-4);
  display: flex;
  flex-direction: column;
  gap: .125rem;
  padding: var(--s-4) var(--s-5);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  max-width: 15rem;
}
.split__badge b {
  font-family: var(--font-display);
  font-size: 1.75rem;
  line-height: 1;
  color: var(--brand);
}
.split__badge span { font-size: .8125rem; color: var(--ink-2); line-height: 1.4; }

.split__content { display: flex; flex-direction: column; gap: var(--s-5); }
.split__content h2 { font-size: var(--fs-h2); }
.split__content > p { color: var(--ink-2); font-size: var(--fs-lead); }

/* Lista com marcadores */
.feature-list { display: flex; flex-direction: column; gap: var(--s-4); }
.feature-list li { display: flex; gap: var(--s-4); align-items: flex-start; }
.feature-list .ico {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex: none;
  border-radius: 12px;
  background: var(--brand-soft);
  color: var(--brand);
}
.feature-list .ico svg { width: 20px; height: 20px; }
.feature-list h3 { font-size: 1.0625rem; margin-bottom: .125rem; letter-spacing: -.01em; }
.feature-list p { font-size: .9375rem; color: var(--ink-2); }

/* Lista de checagem simples */
.check-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--s-3) var(--s-5); }
.check-list li { display: flex; align-items: flex-start; gap: .625rem; font-size: .9375rem; color: var(--ink-2); }
.check-list svg { width: 18px; height: 18px; flex: none; color: var(--brand); margin-top: .22rem; }

/* --- Grade de recursos (automação) --- */
.grid-features {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}
.tile {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  padding: var(--s-5);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.tile:hover { transform: translateY(-4px); border-color: var(--brand); }
.tile .ico {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--brand-soft);
  color: var(--brand);
}
.tile .ico svg { width: 22px; height: 22px; }
.tile h3 { font-size: var(--fs-h4); }
.tile p { font-size: .9375rem; color: var(--ink-2); }

/* --- Processo --- */
.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  counter-reset: step;
}
.step {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  padding-top: var(--s-6);
  border-top: 2px solid var(--line);
  counter-increment: step;
}
.step::before {
  content: "0" counter(step);
  position: absolute;
  top: -1rem;
  left: 0;
  padding-right: .75rem;
  background: var(--bg);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1;
}
.section--alt .step::before { background: var(--bg-alt); }
.step h3 { font-size: var(--fs-h4); }
.step p { font-size: .9375rem; color: var(--ink-2); }

/* --- Números --- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
  gap: var(--gap);
  text-align: center;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: .375rem;
  padding: var(--s-6) var(--s-4);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
}
.stat b {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 1.8rem + 2vw, 3.25rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--brand);
}
.stat span { font-size: .875rem; color: var(--ink-2); }

/* --- FAQ --- */
.faq { display: flex; flex-direction: column; gap: var(--s-3); max-width: 60rem; margin-inline: auto; }
.faq__item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.faq__item[open] { border-color: var(--brand); box-shadow: var(--shadow-sm); }
.faq__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  padding: var(--s-5);
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -.01em;
  cursor: pointer;
  list-style: none;
}
.faq__q::-webkit-details-marker { display: none; }
.faq__q .chev {
  width: 34px;
  height: 34px;
  flex: none;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--surface-2);
  color: var(--brand);
  transition: transform var(--dur) var(--ease-out), background-color var(--dur) var(--ease);
}
.faq__q .chev svg { width: 16px; height: 16px; }
.faq__item[open] .chev { transform: rotate(180deg); background: var(--brand-soft); }
.faq__a { padding: 0 var(--s-5) var(--s-5); color: var(--ink-2); font-size: .9375rem; max-width: 66ch; }

/* --- CTA --- */
.cta {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-xl);
  padding: clamp(2.5rem, 2rem + 4vw, 5rem);
  color: #fff;
  isolation: isolate;
}
.cta__bg { position: absolute; inset: 0; z-index: -2; }
.cta__bg img { width: 100%; height: 100%; object-fit: cover; }
.cta__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(15, 45, 35, .94), rgba(15, 45, 35, .62) 55%, rgba(15, 45, 35, .4));
}
.cta__inner { display: flex; flex-direction: column; gap: var(--s-5); max-width: 40rem; }
.cta h2 { font-size: var(--fs-h2); }
.cta p { color: rgba(255, 255, 255, .86); font-size: var(--fs-lead); }
.cta .eyebrow { color: #EAC79E; }
.cta__actions { display: flex; flex-wrap: wrap; gap: var(--s-3); }

/* --------------------------------------------------------------------------
   9. Galeria + lightbox
   -------------------------------------------------------------------------- */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  justify-content: center;
  margin-bottom: var(--s-6);
}
.filter {
  padding: .55rem 1.05rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  font-size: .875rem;
  font-weight: 600;
  color: var(--ink-2);
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.filter:hover { border-color: var(--brand); color: var(--brand); }
.filter.is-active { background: var(--brand); border-color: var(--brand); color: var(--on-brand); }

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
  gap: var(--s-4);
}
.gallery__item {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--surface-2);
  transition: opacity .3s var(--ease), transform .3s var(--ease);
}
.gallery__item.is-hidden { display: none; }
.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease-out), filter .4s var(--ease);
}
.gallery__item:hover img { transform: scale(1.05); }
.gallery__cap {
  position: absolute;
  inset: auto 0 0;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--s-3);
  padding: var(--s-5) var(--s-4) var(--s-4);
  background: linear-gradient(to top, rgba(9, 13, 11, .82), rgba(9, 13, 11, 0));
  color: #fff;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease-out);
}
.gallery__item:hover .gallery__cap,
.gallery__item:focus-visible .gallery__cap { opacity: 1; transform: none; }
.gallery__cap strong { font-family: var(--font-display); font-size: 1rem; font-weight: 600; }
.gallery__cap small { display: block; font-size: .75rem; opacity: .8; }
.gallery__zoom {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, .18);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.gallery__zoom svg { width: 16px; height: 16px; }

.lightbox {
  border: 0;
  padding: 0;
  max-width: 100vw;
  max-height: 100svh;
  width: 100%;
  height: 100%;
  background: transparent;
  overflow: hidden;
}
.lightbox::backdrop { background: rgba(8, 11, 10, .92); backdrop-filter: blur(6px); }
.lightbox__inner {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  padding: clamp(1rem, 4vw, 3rem);
  position: relative;
}
.lightbox__fig { display: flex; flex-direction: column; gap: var(--s-3); max-width: min(1100px, 100%); max-height: 100%; }
.lightbox__fig img {
  width: 100%;
  max-height: min(78svh, 780px);
  object-fit: contain;
  border-radius: var(--r-md);
  background: #0c110f;
}
.lightbox__fig figcaption { color: rgba(255, 255, 255, .82); font-size: .875rem; text-align: center; }
.lightbox__close,
.lightbox__nav {
  position: absolute;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .24);
  color: #fff;
  transition: background-color var(--dur) var(--ease);
}
.lightbox__close:hover, .lightbox__nav:hover { background: rgba(255, 255, 255, .26); }
.lightbox__close { top: clamp(1rem, 3vw, 2rem); right: clamp(1rem, 3vw, 2rem); }
.lightbox__nav svg, .lightbox__close svg { width: 20px; height: 20px; }
.lightbox__nav--prev { left: clamp(.5rem, 2vw, 2rem); top: 50%; transform: translateY(-50%); }
.lightbox__nav--next { right: clamp(.5rem, 2vw, 2rem); top: 50%; transform: translateY(-50%); }

/* --------------------------------------------------------------------------
   10. Contato, rodapé, flutuantes
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  gap: clamp(2rem, 1.5rem + 3vw, 3.5rem);
  align-items: start;
}

.contact-info { display: flex; flex-direction: column; gap: var(--s-5); }
.contact-list { display: flex; flex-direction: column; gap: var(--s-3); }
.contact-list a,
.contact-list div {
  display: flex;
  align-items: center;
  gap: var(--s-4);
  padding: var(--s-4);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.contact-list a:hover { border-color: var(--brand); transform: translateX(4px); box-shadow: var(--shadow-sm); }
.contact-list .ico {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  flex: none;
  border-radius: 12px;
  background: var(--brand-soft);
  color: var(--brand);
}
.contact-list .ico svg { width: 20px; height: 20px; }
/* O span externo é só o agrupador: a cor precisa vir do rótulo e do valor */
.contact-list b { display: block; font-size: .9375rem; font-weight: 600; color: var(--ink); }
.contact-list b + span { display: block; font-size: .8125rem; color: var(--ink-3); }

.form {
  display: grid;
  gap: var(--s-4);
  padding: clamp(1.5rem, 1.2rem + 1.5vw, 2.5rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-md);
}
.form__row { display: grid; gap: var(--s-4); }
.field { display: flex; flex-direction: column; gap: .4rem; }
.field label { font-size: .8125rem; font-weight: 600; letter-spacing: .01em; }
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: .8rem 1rem;
  background: var(--bg);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  font-size: .9375rem;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.field textarea { min-height: 120px; resize: vertical; }
.field select { appearance: none; cursor: pointer; background-image: none; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--brand);
  background: var(--surface);
  box-shadow: 0 0 0 3px var(--brand-soft);
}
.field input::placeholder, .field textarea::placeholder { color: var(--ink-3); }
.select-wrap { position: relative; }
.select-wrap svg {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--ink-3);
  pointer-events: none;
}
.form__note { font-size: .75rem; color: var(--ink-3); }
.form__status { font-size: .875rem; color: var(--brand); font-weight: 600; min-height: 1.2rem; }

/* Rodapé */
.footer {
  background: var(--dark);
  color: var(--dark-ink);
  padding-block: clamp(3rem, 2.4rem + 3vw, 4.5rem) var(--s-6);
}
.footer__grid {
  display: grid;
  gap: var(--s-7);
  padding-bottom: var(--s-7);
  border-bottom: 1px solid var(--dark-line);
}
.footer__brand { display: flex; flex-direction: column; gap: var(--s-4); max-width: 26rem; }
.footer__brand .brand { color: var(--dark-ink); }
.footer__brand p { font-size: .9375rem; color: var(--dark-ink-2); }
.footer__col h4 {
  font-family: var(--font-sans);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--dark-ink-2);
  margin-bottom: var(--s-4);
}
.footer__col ul { display: flex; flex-direction: column; gap: .625rem; }
.footer__col a { font-size: .9375rem; color: var(--dark-ink); opacity: .82; transition: opacity var(--dur) var(--ease), color var(--dur) var(--ease); }
.footer__col a:hover { opacity: 1; color: #7FCAA6; }
.socials { display: flex; gap: var(--s-2); }
.socials a {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--dark-line);
  border-radius: 50%;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.socials a:hover { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .4); transform: translateY(-2px); }
.socials svg { width: 18px; height: 18px; }
.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-3);
  padding-top: var(--s-5);
  font-size: .8125rem;
  color: var(--dark-ink-2);
}
.footer__bottom a:hover { color: var(--dark-ink); }

/* Flutuantes */
.floaters {
  position: fixed;
  right: clamp(1rem, 3vw, 1.75rem);
  bottom: clamp(1rem, 3vw, 1.75rem);
  z-index: 90;
  display: flex;
  flex-direction: column-reverse;
  gap: var(--s-3);
  align-items: center;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur);
}
/* Recolhe os flutuantes sobre o formulário e o rodapé, onde já há contato à mão */
.floaters.is-tucked {
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(.9);
}
.fab {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  color: #fff;
  background: #25D366;
  box-shadow: 0 8px 24px rgba(37, 211, 102, .34);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.fab:hover { transform: scale(1.07); box-shadow: 0 12px 30px rgba(37, 211, 102, .45); }
.fab svg { width: 28px; height: 28px; }
.fab::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid #25D366;
  animation: ping 2.6s var(--ease-out) infinite;
}
.fab-wrap { position: relative; display: grid; }
@keyframes ping {
  0%   { transform: scale(1); opacity: .7; }
  70%  { transform: scale(1.45); opacity: 0; }
  100% { transform: scale(1.45); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) { .fab::after { animation: none; opacity: 0; } }

.to-top {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  color: var(--ink);
  box-shadow: var(--shadow-sm);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur);
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { border-color: var(--brand); color: var(--brand); }
.to-top svg { width: 18px; height: 18px; }

/* --------------------------------------------------------------------------
   11. Revelação no scroll
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
  transition-delay: var(--d, 0ms);
}
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}

/* --------------------------------------------------------------------------
   12. Breakpoints
   -------------------------------------------------------------------------- */
/* Telas estreitas: botões do hero em largura cheia e folga para o botão flutuante */
@media (max-width: 519px) {
  .hero { padding-bottom: 6rem; }
  .hero__actions .btn { flex: 1 1 100%; }
  .hero__stats { grid-template-columns: 1fr; gap: var(--s-3); }
  .cta__actions .btn { flex: 1 1 100%; }
}

@media (min-width: 600px) {
  .form__row--2 { grid-template-columns: 1fr 1fr; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .cards,
  .grid-features,
  .steps { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 860px) {
  .split { grid-template-columns: 1fr 1fr; }
  .split--reverse .split__media { order: 2; }
  .contact-grid { grid-template-columns: .85fr 1.15fr; }
  .footer__grid { grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: var(--s-6); }

  /* Duas imagens empilhadas: juntas acompanham a altura da coluna de texto */
  .split__media--stack img:nth-child(1) { aspect-ratio: 4 / 3; }
  .split__media--stack img:nth-child(2) { aspect-ratio: 16 / 9; }
}

@media (min-width: 1024px) {
  :root { --header-h: 84px; }
  .nav { display: block; }
  .burger { display: none; }
  .header .btn--header { display: inline-flex; }
  .hero__content { max-width: 52rem; }

  /* 4 serviços e 4 etapas em uma linha; 6 diferenciais em duas linhas de 3 */
  .cards { grid-template-columns: repeat(4, 1fr); }
  .steps { grid-template-columns: repeat(4, 1fr); }
  .grid-features { grid-template-columns: repeat(3, 1fr); }

  /* 12 projetos em 3 colunas: 4 linhas completas, e cada filtro fecha 1 linha */
  .gallery { grid-template-columns: repeat(3, 1fr); }
}

/* Impressão */
@media print {
  .header, .floaters, .mobile-nav, .marquee, .lightbox { display: none !important; }
  body { background: #fff; color: #000; }
  .section { padding-block: 1.5rem; break-inside: avoid; }
}