/* ==========================================================================
   ARIEVILO® Sistemas — Brand tokens (Manual da Marca V1.0 - 2026)
   Monochromatic by essence. NO accent color.
   ========================================================================== */
:root {
  --c-black:    #000000;  /* Preto Arievilo · PANTONE Process Black C */
  --c-grafite:  #2B2B2B;  /* Grafite — apoio */
  --c-gray:     #8A8A8A;  /* Cinza médio — hierarquia de texto */
  --c-gray-lt:  #EDEDED;  /* Cinza claro — fundos */
  --c-white:    #FFFFFF;
  --c-grafite-90: rgba(43,43,43,0.90);
  --c-black-80:   rgba(0,0,0,0.80);
  --c-white-72:   rgba(255,255,255,0.72);
  --c-white-12:   rgba(255,255,255,0.12);

  --ff-sans: 'Poppins', Arial, system-ui, -apple-system, 'Segoe UI', sans-serif;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2.5rem;
  --space-6: 4rem;
  --space-7: 6rem;
  --space-8: 9rem;

  --max-w: 1200px;
  --header-h: 100px;
  --header-h-sm: 76px;

  --ease: cubic-bezier(.4,.0,.2,1);
}

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

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

body {
  margin: 0;
  font-family: var(--ff-sans);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-grafite);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--c-black);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

button { font: inherit; cursor: pointer; }

h1, h2, h3, h4 {
  font-family: var(--ff-sans);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--c-black);
  margin: 0 0 var(--space-4);
}
h1 { font-size: clamp(2.25rem, 5.5vw, 4rem); font-weight: 800; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.75rem); font-weight: 700; letter-spacing: -0.025em; }
h3 { font-size: clamp(1.125rem, 2vw, 1.375rem); font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; }

p { margin: 0 0 var(--space-3); }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--c-black); color: #fff; padding: .5rem 1rem; z-index: 9999;
}
.skip-link:focus { left: 8px; top: 8px; }

/* Container */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-4);
}
@media (min-width: 768px) {
  .container { padding: 0 var(--space-5); }
}

/* Section base — generous spacing per "respiro" rule from brand */
.section {
  padding: var(--space-7) 0;
  position: relative;
}
@media (min-width: 768px) {
  .section { padding: var(--space-8) 0; }
}

.section--dark {
  background: var(--c-grafite);
  color: var(--c-white-72);
}
.section--dark h1, .section--dark h2, .section--dark h3, .section--dark h4 {
  color: var(--c-white);
}

.section--gray {
  background: var(--c-gray-lt);
}

.section__eyebrow {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .18em;
  color: var(--c-gray);
  margin-bottom: var(--space-3);
}
.section--dark .section__eyebrow { color: var(--c-white-72); }

.section__lead {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  max-width: 60ch;
  color: var(--c-gray);
}
.section--dark .section__lead { color: var(--c-white-72); }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .9rem 1.5rem;
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: -.01em;
  border-radius: 999px;
  border: 1.5px solid transparent;
  transition: all .25s var(--ease);
  cursor: pointer;
}
.btn--primary {
  background: var(--c-black);
  color: var(--c-white);
  border-color: var(--c-black);
}
.btn--primary:hover {
  background: var(--c-grafite);
  border-color: var(--c-grafite);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.18);
}
.btn--ghost {
  background: transparent;
  color: var(--c-black);
  border-color: var(--c-black);
}
.btn--ghost:hover {
  background: var(--c-black);
  color: var(--c-white);
}
.btn--invert {
  background: var(--c-white);
  color: var(--c-black);
  border-color: var(--c-white);
}
.btn--invert:hover {
  background: transparent;
  color: var(--c-white);
  border-color: var(--c-white);
}
.btn__arrow { transition: transform .25s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(4px); }

/* ==========================================================================
   Header / Nav
   ========================================================================== */
.header {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--header-h);
  display: flex; align-items: center;
  background: var(--c-black);
  z-index: 1000;
  transition: height .3s var(--ease), border-color .3s var(--ease);
  border-bottom: 1px solid transparent;
}
.header.is-scrolled,
.header.is-light {
  border-bottom-color: var(--c-white-12);
}
.header__inner {
  width: 100%;
  margin: 0;
  padding: 0 var(--space-4);
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-4);
}
@media (min-width: 768px) {
  .header__inner { padding: 0 var(--space-5); }
}
.header__nav {
  margin-left: auto;
}
.header__brand {
  display: flex; align-items: center; gap: .75rem;
}
.header__logo {
  height: 38px;
  width: auto;
  transition: height .25s var(--ease);
  /* Crisper rendering at small sizes */
  image-rendering: -webkit-optimize-contrast;
}
@media (min-width: 768px) {
  .header__logo { height: 52px; }
}
@media (min-width: 1200px) {
  .header__logo { height: 60px; }
}
.header__nav {
  display: none;
  gap: 1.25rem;
}
@media (min-width: 1024px) {
  .header__nav { display: flex; }
}
.header__nav a {
  color: var(--c-white);
  font-size: .9rem;
  font-weight: 500;
  opacity: .85;
  transition: opacity .2s var(--ease);
  position: relative;
}
.header__nav a:hover { opacity: 1; }
.header__nav a::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 1.5px;
  background: var(--c-white);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s var(--ease);
}
.header__nav a:hover::after { transform: scaleX(1); }
.header__cta {
  display: none;
}
@media (min-width: 768px) {
  .header__cta { display: inline-flex; }
}

/* Mobile toggle */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  background: transparent;
  border: 0;
  padding: 0;
}
@media (min-width: 1024px) { .nav-toggle { display: none; } }
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--c-white);
  transition: transform .25s var(--ease), opacity .25s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile drawer */
.drawer {
  position: fixed; inset: var(--header-h) 0 0 0;
  background: var(--c-black);
  padding: var(--space-5) var(--space-4);
  transform: translateX(100%);
  transition: transform .3s var(--ease);
  display: flex; flex-direction: column; gap: var(--space-3);
  overflow-y: auto;
  z-index: 999;
}
.drawer.is-open { transform: translateX(0); }
.drawer a {
  color: var(--c-white);
  font-size: 1.25rem;
  font-weight: 500;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--c-white-12);
}
@media (min-width: 1024px) { .drawer { display: none; } }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex; align-items: center;
  background: var(--c-black);
  color: var(--c-white);
  padding-top: calc(var(--header-h) + var(--space-5));
  padding-bottom: var(--space-7);
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0;
  pointer-events: none;
  opacity: .18;
}
/* Decorative triangle facets — the Δ motif from the brand manual */
.hero__bg svg {
  width: 100%; height: 100%;
  display: block;
}
.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-5);
}
@media (min-width: 1024px) {
  .hero__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: var(--space-7);
  }
}
.hero__eyebrow {
  display: inline-block;
  font-size: .8rem; font-weight: 500;
  letter-spacing: .2em; text-transform: uppercase;
  color: var(--c-white-72);
  margin-bottom: var(--space-4);
}
.hero__title {
  color: var(--c-white);
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.02;
  margin-bottom: var(--space-4);
}
.hero__title em {
  font-style: normal;
  display: inline-block;
  position: relative;
  background: linear-gradient(180deg, var(--c-white) 0%, var(--c-gray) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero__lead {
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  font-weight: 300;
  color: var(--c-white-72);
  max-width: 50ch;
  margin-bottom: var(--space-5);
  line-height: 1.5;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.hero__meta {
  display: flex; gap: var(--space-5); flex-wrap: wrap;
  padding-top: var(--space-5);
  border-top: 1px solid var(--c-white-12);
  margin-top: var(--space-5);
}
.hero__meta-item {
  font-size: .85rem;
  color: var(--c-white-72);
}
.hero__meta-item strong {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--c-white);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 4px;
}

/* Hero scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  color: var(--c-white-72);
  font-size: .75rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  display: flex; flex-direction: column; align-items: center; gap: .5rem;
}
.hero__scroll::after {
  content: ''; width: 1px; height: 32px;
  background: linear-gradient(180deg, var(--c-white-72), transparent);
  animation: scrollLine 2s var(--ease) infinite;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ==========================================================================
   Services grid
   ========================================================================== */
.servicos { padding-top: var(--space-4); padding-bottom: var(--space-2); }
@media (min-width: 768px) { .servicos { padding-top: var(--space-5); padding-bottom: var(--space-3); } }
.verticais { padding: var(--space-3) 0; }
@media (min-width: 768px) { .verticais { padding: var(--space-4) 0; } }
.verticais__lead { max-width: none; margin-bottom: 0; }
@media (min-width: 1100px) { .verticais__lead { white-space: nowrap; } }
.servicos__head {
  display: grid; gap: var(--space-4);
  margin-bottom: var(--space-2);
}
.servicos__head h2 {
  font-size: clamp(2.25rem, 4.5vw, 3.5rem);
}
@media (min-width: 1024px) {
  .servicos__head {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: var(--space-7);
  }
}
.servicos__grid {
  display: grid;
  gap: 1px;
  background: var(--c-gray-lt);
  border: 1px solid var(--c-gray-lt);
}
@media (min-width: 640px) { .servicos__grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .servicos__grid { grid-template-columns: 1fr 1fr 1fr; } }

.servico {
  padding: var(--space-5) var(--space-4);
  background: var(--c-white);
  display: flex; flex-direction: column;
  gap: var(--space-3);
  transition: background .3s var(--ease), transform .3s var(--ease);
  position: relative;
}
.servico:hover {
  background: var(--c-black);
  color: var(--c-white-72);
}
.servico:hover .servico__num,
.servico:hover h3,
.servico:hover .servico__arrow { color: var(--c-white); }
.servico:hover .servico__icon { background: var(--c-white); color: var(--c-black); }

.servico__num {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .15em;
  color: var(--c-gray);
  transition: color .3s var(--ease);
}
.servico__icon {
  width: 48px; height: 48px;
  display: grid; place-items: center;
  background: var(--c-black);
  color: var(--c-white);
  border-radius: 50%;
  transition: background .3s var(--ease), color .3s var(--ease);
  margin-bottom: var(--space-2);
}
.servico h3 {
  margin: 0;
  color: var(--c-black);
  transition: color .3s var(--ease);
}
.servico p {
  margin: 0;
  font-size: .95rem;
  color: var(--c-gray);
  flex: 1;
}
.servico__arrow {
  margin-top: var(--space-3);
  font-size: 1.25rem;
  color: var(--c-black);
  transition: color .3s var(--ease), transform .3s var(--ease);
}
.servico:hover .servico__arrow { transform: translateX(4px); }

/* ==========================================================================
   Verticais (markets)
   ========================================================================== */
.verticais__list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-3);
}
@media (min-width: 768px) { .verticais__list { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .verticais__list { grid-template-columns: repeat(5, 1fr); } }

.vertical {
  padding: var(--space-3) var(--space-3);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--c-white-12);
  text-align: center;
  transition: background .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease);
}
.vertical:hover {
  background: var(--c-white);
  border-color: var(--c-white);
  color: var(--c-black);
  transform: translateY(-4px);
}
.vertical__icon {
  width: 32px; height: 32px;
  margin: 0 auto var(--space-2);
  opacity: .9;
}
.vertical__name {
  font-size: .95rem;
  font-weight: 600;
  color: var(--c-white);
  margin: 0;
}
.vertical:hover .vertical__name { color: var(--c-black); }

/* ==========================================================================
   Cases
   ========================================================================== */
.cases { padding-top: var(--space-3); padding-bottom: var(--space-2); }
@media (min-width: 768px) { .cases { padding-top: var(--space-4); padding-bottom: var(--space-3); } }
.contato { padding-top: var(--space-3); padding-bottom: var(--space-3); }
@media (min-width: 768px) { .contato { padding-top: var(--space-4); padding-bottom: var(--space-3); } }
.cases__head { margin-bottom: var(--space-3); }
.cases__head h2 { margin-bottom: var(--space-2); }
.cases__head .section__lead { margin-top: 0; }

.cases__grid {
  display: grid;
  grid-template-columns: 1fr;
  grid-auto-rows: 1fr;             /* todas as linhas com mesma altura */
  gap: var(--space-3);
}
@media (min-width: 640px) {
  .cases__grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 960px) {
  .cases__grid { grid-template-columns: repeat(3, 1fr); }
}

.case {
  position: relative;
  background: var(--c-gray-lt);
  color: var(--c-grafite);
  overflow: hidden;
  aspect-ratio: 16 / 21;            /* h = 1.75 × largura×(3/4); +75% sobre o 4:3 original */
  display: flex; align-items: end;
  padding: var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid rgba(0,0,0,0.06);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.case:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0,0,0,0.10);
}

.case__bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 1;
  transition: opacity .4s var(--ease), transform .8s var(--ease);
  z-index: 0;
}
.case:hover .case__bg { transform: scale(1.04); }

.case__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(255,255,255,0.55) 100%);
  z-index: 0;
}
/* área superior do card que recebe o logo, centralizado horizontal e verticalmente
   sobre a porção que sobra acima do bloco de texto */
.case__brand-wrap {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 55%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  z-index: 1;
  pointer-events: none;
}
.case__brand {
  display: block;
  width: 288px;
  max-width: 85%;
  max-height: 100%;
  height: auto;
  object-fit: contain;
  opacity: 1;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.10));
  transition: transform .35s var(--ease), opacity .35s var(--ease);
  transform-origin: center center;
}
/* logos verticais (triângulo + wordmark empilhados) precisam de menos largura */
.case--vertical-logo .case__brand {
  width: 280px;
  max-width: 75%;
}
/* logos que precisam ser reduzidos individualmente (ex.: SaaSPark — vertical compacto) */
.case--logo-sm .case__brand {
  width: 230px;
  max-width: 68%;
}
.case:hover .case__brand { transform: scale(1.04); opacity: 1; }
.case__content {
  position: relative; z-index: 1;
  width: 100%;
}
.case__tag {
  display: inline-block;
  font-size: .7rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--c-gray);
  margin-bottom: var(--space-2);
}
.case__title {
  color: var(--c-black);
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  font-weight: 600;
  margin: 0 0 var(--space-2);
  letter-spacing: -.01em;
}
.case__desc {
  font-size: .9rem;
  color: var(--c-grafite);
  margin: 0;
  max-width: 50ch;
}
.case__link {
  display: inline-flex; align-items: center; gap: .4rem;
  margin-top: var(--space-3);
  font-size: .85rem;
  font-weight: 500;
  color: var(--c-black);
  border-bottom: 1px solid rgba(0,0,0,0.18);
  padding-bottom: 2px;
}

/* ==========================================================================
   Grupo Arievilo
   ========================================================================== */
.grupo__head { margin-bottom: var(--space-6); max-width: 60ch; }

.grupo__brands {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}
@media (min-width: 640px) { .grupo__brands { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .grupo__brands { grid-template-columns: repeat(4, 1fr); } }

.brand-card {
  background: var(--c-white);
  border: 1px solid var(--c-gray-lt);
  padding: var(--space-5) var(--space-4);
  display: flex; flex-direction: column; gap: var(--space-3);
  transition: border-color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
}
.brand-card:hover {
  border-color: var(--c-black);
  transform: translateY(-4px);
  box-shadow: 0 14px 28px rgba(0,0,0,0.08);
}
.brand-card--active {
  background: var(--c-black);
  color: var(--c-white-72);
  border-color: var(--c-black);
}
.brand-card--active h3 { color: var(--c-white); }
.brand-card__name {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -.01em;
}
.brand-card__name sup {
  font-size: .55em;
  vertical-align: top;
  font-weight: 400;
}
.brand-card__tagline {
  font-size: .85rem;
  color: var(--c-gray);
  margin: 0;
  flex: 1;
}
.brand-card--active .brand-card__tagline { color: var(--c-white-72); }
.brand-card__current {
  font-size: .7rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--c-white);
  opacity: .6;
}

/* ==========================================================================
   Marcas da holding (TFB portfolio)
   ========================================================================== */
.marcas { padding-top: var(--space-3); }
@media (min-width: 768px) { .marcas { padding-top: var(--space-4); } }
.marcas__head {
  text-align: center;
  max-width: 880px;
  margin: 0 auto var(--space-5);
}
.marcas__head h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--space-3);
}
.marcas__head .section__lead {
  max-width: 60ch;
  margin: 0 auto;
  color: var(--c-white-72);
}
.marcas__grid {
  display: grid;
  grid-template-columns: 1fr;
  grid-auto-rows: 1fr;            /* todas as linhas com mesma altura */
  gap: var(--space-3);
}
@media (min-width: 640px) {
  .marcas__grid { grid-template-columns: repeat(3, 1fr); }
}
.marca-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--c-white-12);
  border-radius: 30px;
  padding: var(--space-4) var(--space-4);
  height: 200px;                  /* mesma altura fixa em todos os cards */
  display: flex; align-items: center; justify-content: center;
  transition: background .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease);
}
.marca-card:hover {
  background: rgba(255,255,255,0.07);
  border-color: var(--c-white);
  transform: translateY(-3px);
}
.marca-logo {
  max-width: 80%;
  max-height: 84px;
  width: auto; height: auto;
  object-fit: contain;
  transition: filter .25s var(--ease), transform .25s var(--ease);
}
.marca-logo--invert {
  filter: invert(1) brightness(1.05);
}
.marca-card:hover .marca-logo { transform: scale(1.04); }

/* ==========================================================================
   Contato
   ========================================================================== */
.contato { background: var(--c-black); color: var(--c-white-72); }
.contato h1, .contato h2, .contato h3, .contato h4 { color: var(--c-white); }
.contato__inner {
  display: grid; gap: var(--space-6);
}
@media (min-width: 1024px) {
  .contato__inner { grid-template-columns: 1fr 1fr; gap: var(--space-7); }
}
.contato h2 { font-size: clamp(2rem, 4vw, 3.25rem); }
.contato h2 em {
  font-style: normal;
  color: var(--c-white);
}

.contato__info {
  display: flex; flex-direction: column; gap: var(--space-4);
  font-size: .95rem;
}
.contato__row {
  display: flex; flex-direction: column; gap: .25rem;
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--c-white-12);
}
.contato__label {
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-gray);
}
.contato__value {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--c-white);
}
.contato__value a:hover { text-decoration: underline; }

.contato__form {
  display: flex; flex-direction: column; gap: var(--space-3);
}
.field {
  display: flex; flex-direction: column; gap: .35rem;
}
.field label {
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--c-gray);
}
.field input, .field textarea, .field select {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--c-white-12);
  padding: .75rem 0;
  color: var(--c-white);
  font: inherit;
  transition: border-color .2s var(--ease);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-bottom-color: var(--c-white);
}
.field textarea { min-height: 120px; resize: vertical; }
.field select option { background: var(--c-black); }

.contato__feedback {
  font-size: .9rem;
  margin: 0;
  padding: .25rem 0;
  color: var(--c-white-72);
  min-height: 1.2em;
}
.contato__feedback.is-success { color: #9fe7b0; }
.contato__feedback.is-error   { color: #f7b8b8; }

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background: var(--c-grafite);
  color: var(--c-white-72);
  padding: var(--space-4) 0 var(--space-3);
  font-size: .85rem;
}
.footer__top {
  display: grid; gap: var(--space-5);
  margin-bottom: var(--space-2);
}
.footer__brand p { margin-bottom: 0; }
@media (min-width: 768px) {
  .footer__top { grid-template-columns: 1fr auto; gap: var(--space-5); align-items: start; }
  .footer__col { text-align: right; justify-self: end; }
}
.footer__brand img {
  height: 55px;
  width: auto;
  margin-bottom: var(--space-4);
  max-width: 100%;
}
.footer__brand p { max-width: 32ch; color: var(--c-white-72); }
.footer__col h4 {
  color: var(--c-white);
  font-size: .8rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  margin: 0 0 var(--space-3);
}
.footer__col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: .5rem; }
.footer__col a:hover { color: var(--c-white); }

.footer__bottom {
  border-top: 1px solid var(--c-white-12);
  padding-top: var(--space-3);
  display: flex; flex-wrap: wrap; gap: var(--space-3);
  justify-content: space-between; align-items: center;
  font-size: .75rem;
  color: var(--c-gray);
}
.footer__legal { max-width: 70ch; text-align: justify; hyphens: auto; }
.footer__legal strong { color: var(--c-white-72); font-weight: 500; }

/* ==========================================================================
   Animation utilities
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

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