/* ==========================================================================
   Gestecno Engenharia — estilos
   Mobile-first. Cores e fontes centralizadas em :root.
   ========================================================================== */

:root {
  /* Cores da marca (extraídas da logo) */
  --color-primary: #00188f;        /* azul "Gestecno" */
  --color-primary-dark: #000d52;
  --color-primary-deep: #00093a;
  --color-primary-light: #e8ebf8;
  --color-accent: #fe7501;         /* laranja do prédio */
  --color-accent-hover: #ff8a26;
  --color-accent-dark: #c25500;    /* laranja para ícones/texto sobre fundo claro */
  --color-steel: #48657f;          /* cinza-azulado da engrenagem */
  --color-ruler: #0a57b4;          /* azul da régua */

  /* Neutros */
  --color-text: #1a2133;
  --color-text-muted: #4d5566;
  --color-bg: #ffffff;
  --color-bg-alt: #f3f5f9;
  --color-border: #dde2ec;
  --color-on-dark: #ffffff;
  --color-on-dark-muted: #c3cbe8;

  /* WhatsApp (tom escuro para contraste com o ícone branco) */
  --color-whatsapp: #128c4a;
  --color-whatsapp-dark: #0d6d39;

  /* Placeholders [A CONFIRMAR] */
  --color-tbc-bg: #fff3b0;
  --color-tbc-text: #5c4300;

  /* Tipografia */
  --font-heading: "Exo 2", "Segoe UI", Arial, sans-serif;
  --font-body: "Inter", "Segoe UI", Arial, sans-serif;

  /* Espaçamento e forma */
  --container: 1200px;
  --gutter: 1.25rem;
  --section-space: 4.5rem;
  --radius: 8px;
  --radius-lg: 14px;
  --shadow: 0 4px 18px rgba(0, 24, 143, 0.07);
  --shadow-lg: 0 18px 44px rgba(0, 24, 143, 0.16);
  --header-h: 68px;
  --focus-ring: 3px solid var(--color-accent);
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 8px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
body.is-locked { overflow: hidden; }

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

h1, h2, h3 {
  font-family: var(--font-heading);
  line-height: 1.15;
  margin: 0 0 0.75rem;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

p { margin: 0 0 1rem; }
ul, ol { margin: 0; padding: 0; }
[role="list"] { list-style: none; }
address { font-style: normal; }

a { color: var(--color-primary); text-underline-offset: 3px; }
a:hover { color: var(--color-ruler); }

:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 3px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

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

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  z-index: 1000;
  padding: 0.75rem 1rem;
  background: var(--color-primary);
  color: var(--color-on-dark);
  border-radius: var(--radius);
  font-weight: 600;
}
.skip-link:focus { top: 1rem; color: var(--color-on-dark); }

.icon { width: 1.25em; height: 1.25em; flex-shrink: 0; }

/* Destaque visual de conteúdo pendente: busque por "[A CONFIRMAR" */
mark.tbc {
  background: var(--color-tbc-bg);
  color: var(--color-tbc-text);
  padding: 0.05em 0.3em;
  border-radius: 4px;
  font-weight: 500;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

/* Animação de entrada (ativada pelo JS; sem JS, tudo aparece normalmente) */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); }
.js .reveal.is-visible { opacity: 1; transform: none; }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 46px;
  padding: 0.7rem 1.35rem;
  border: 2px solid transparent;
  border-radius: 6px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.btn:hover { transform: translateY(-2px); }
.btn--lg { min-height: 52px; padding: 0.85rem 1.6rem; font-size: 1rem; }

/* Laranja com texto azul-escuro: contraste ≈ 6:1 */
.btn--accent { background: var(--color-accent); color: var(--color-primary-deep); box-shadow: 0 6px 18px rgba(254, 117, 1, 0.28); }
.btn--accent:hover { background: var(--color-accent-hover); color: var(--color-primary-deep); }

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

.btn--ghost { border-color: var(--color-primary); color: var(--color-primary); background: transparent; }
.btn--ghost:hover { background: var(--color-primary); color: var(--color-on-dark); }

.btn--outline-light { border-color: rgba(255, 255, 255, 0.7); color: var(--color-on-dark); background: transparent; }
.btn--outline-light:hover { background: var(--color-on-dark); border-color: var(--color-on-dark); color: var(--color-primary); }

/* ---------- Eyebrow (rótulo acima dos títulos) ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.85rem;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-steel);
}
/* Traço laranja inspirado na logo */
.eyebrow::before {
  content: "";
  width: 28px;
  height: 4px;
  border-radius: 2px;
  background: var(--color-accent);
}
.eyebrow--light { color: var(--color-on-dark-muted); }

/* Sublinhado laranja em palavras-chave dos títulos */
.accent-underline {
  background: linear-gradient(rgba(254, 117, 1, 0.75), rgba(254, 117, 1, 0.75)) 0 88% / 100% 0.16em no-repeat;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

/* ---------- 1. Topo ---------- */
.topbar { display: none; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: saturate(1.4) blur(6px);
  transition: box-shadow 0.25s;
}
.site-header.is-scrolled { box-shadow: 0 6px 24px rgba(0, 13, 82, 0.1); }

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 1rem;
}

.brand { display: block; flex-shrink: 0; }
.brand img { width: auto; height: 46px; }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-primary);
  cursor: pointer;
}
.nav-toggle .icon { width: 24px; height: 24px; }
.nav-toggle__close { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle__open { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle__close { display: block; }

/* Menu no celular: painel abaixo do topo */
.site-nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  display: none;
  flex-direction: column;
  gap: 1rem;
  padding: 0.5rem var(--gutter) 1.5rem;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 16px 30px rgba(0, 13, 82, 0.12);
}
.site-nav.is-open { display: flex; }
/* Sem JavaScript, o menu fica sempre visível */
.no-js .site-nav { position: static; display: flex; box-shadow: none; }
.no-js .nav-toggle { display: none; }

.site-nav__list { list-style: none; display: flex; flex-direction: column; }
.site-nav__list a {
  display: block;
  padding: 0.8rem 0.25rem;
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border);
}
.site-nav__list a:hover,
.site-nav__list a.is-active { color: var(--color-primary); }
.site-nav__cta { align-self: stretch; }

/* ---------- 2. Hero ---------- */
.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 4rem 0 4.5rem;
  background: var(--color-primary-deep);
  color: var(--color-on-dark);
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 70% center;
}
/* Camada escura para garantir contraste do texto sobre qualquer foto */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(0, 9, 58, 0.94) 0%, rgba(0, 9, 58, 0.82) 45%, rgba(0, 9, 58, 0.35) 100%),
    linear-gradient(0deg, rgba(0, 9, 58, 0.6) 0%, rgba(0, 9, 58, 0) 40%);
}
.hero__inner { max-width: var(--container); }

.hero__title {
  max-width: 17ch;
  font-size: clamp(2.1rem, 7vw, 4rem);
  font-weight: 800;
  line-height: 1.08;
  color: var(--color-on-dark);
}
.hero__title-accent { color: var(--color-accent); }
.hero__subtitle {
  max-width: 38rem;
  font-size: clamp(1.05rem, 2.4vw, 1.2rem);
  color: var(--color-on-dark-muted);
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }

/* ---------- Seções ---------- */
.section { padding: var(--section-space) 0; }
.section--alt { background: var(--color-bg-alt); }
.section--dark {
  background:
    radial-gradient(circle at 85% 10%, rgba(10, 87, 180, 0.35), transparent 45%),
    var(--color-primary-dark);
  color: var(--color-on-dark);
}
.section--dark .section__title { color: var(--color-on-dark); }

.section__head { max-width: 46rem; margin-bottom: 2.5rem; }
.section__head--split { max-width: none; }
.section__title { font-size: clamp(1.75rem, 4.6vw, 2.6rem); font-weight: 800; text-wrap: balance; }
.section__lead { margin: 0; color: var(--color-text-muted); font-size: 1.05rem; max-width: 34rem; text-wrap: balance; }

/* ---------- 3. Quem somos ---------- */
.about { display: grid; gap: 2.5rem; }
.about__text p { color: var(--color-text-muted); }
.about__lead { font-size: 1.15rem; color: var(--color-text) !important; }

.checklist { display: grid; gap: 0.6rem; margin-top: 1.5rem; }
.checklist li { display: flex; gap: 0.65rem; align-items: flex-start; font-weight: 500; }
.checklist .icon {
  width: 22px;
  height: 22px;
  padding: 3px;
  margin-top: 0.15rem;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-primary-deep);
}

.about__cta {
  padding: 2rem 1.75rem;
  background: var(--color-primary-dark);
  color: var(--color-on-dark-muted);
  border-radius: var(--radius-lg);
  border-top: 4px solid var(--color-accent);
  box-shadow: var(--shadow-lg);
  background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 24px 24px;
}
.about__cta-title { font-size: 1.4rem; color: var(--color-on-dark); }
.about__cta-list { display: grid; gap: 0.75rem; margin: 1.25rem 0 1.75rem; }
.about__cta-list li { display: flex; gap: 0.75rem; align-items: center; color: var(--color-on-dark); font-weight: 500; }
.about__cta-list .icon {
  width: 36px;
  height: 36px;
  padding: 8px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-accent);
}
.about__cta-btn { width: 100%; }
.about__cta-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.1rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
}
.about__cta-link:hover { color: var(--color-accent-hover); text-decoration: underline; }
.about__cta :focus-visible { outline-color: var(--color-on-dark); }

/* ---------- Missão, Visão e Valores ---------- */
.principles { padding-top: 0; }
.principles__list { display: grid; gap: 1.25rem; }
.principle {
  position: relative;
  padding: 2rem 1.75rem 1.75rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.principle::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(var(--color-accent), var(--color-primary));
}
.principle__icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  border-radius: 50%;
  border: 2px solid var(--color-accent);
  color: var(--color-accent-dark);
}
.principle__icon .icon { width: 22px; height: 22px; }
.principle__title { font-size: 1.3rem; margin-bottom: 0.4rem; }
.principle__text { margin: 0; color: var(--color-text-muted); }
.principle__values { display: grid; gap: 0.4rem; }
.principle__values li { position: relative; padding-left: 1.1rem; color: var(--color-text-muted); }
.principle__values li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--color-accent);
}

/* ---------- 4. Serviços ---------- */
.cards { display: grid; gap: 1.25rem; }
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 1.75rem 1.5rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s;
}
.card::after {
  content: "";
  position: absolute;
  left: 1.5rem;
  right: 1.5rem;
  bottom: 0;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card:hover::after { transform: scaleX(1); }

.card__top { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 1.25rem; }
.card__icon {
  width: 56px;
  height: 56px;
  padding: 13px;
  border-radius: 12px;
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.card__num {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-border);
}
.card__title { font-size: 1.25rem; margin-bottom: 0.4rem; }
.card__text { color: var(--color-text-muted); margin-bottom: 1rem; }
.card__list { display: grid; gap: 0.35rem; margin-top: auto; padding-top: 1rem; border-top: 1px solid var(--color-border); }
.card__list li { position: relative; padding-left: 1.1rem; font-size: 0.92rem; color: var(--color-text); }
.card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--color-accent);
}

/* ---------- Como trabalhamos ---------- */
.steps { list-style: none; display: grid; gap: 1.5rem; counter-reset: step; }
.step { position: relative; padding: 1.5rem; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-bg); }
.step__num {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 1rem;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-on-dark);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.1rem;
  box-shadow: 0 0 0 6px var(--color-primary-light);
}
.step__title { font-size: 1.15rem; margin-bottom: 0.35rem; }
.step__text { margin: 0; color: var(--color-text-muted); }

/* ---------- 5. Diferenciais ---------- */
.advantages { display: grid; gap: 2.5rem; }
.advantages__intro p:not(.eyebrow) { color: var(--color-on-dark-muted); max-width: 28rem; margin: 0; }
.advantages__list { list-style: none; border-top: 1px solid rgba(255, 255, 255, 0.22); }
.advantage {
  display: grid;
  grid-template-columns: 2.25rem 1fr 1.5rem;
  gap: 0.9rem;
  align-items: start;
  padding: 1.35rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.22);
  transition: padding-left 0.3s var(--ease);
}
.advantage:hover { padding-left: 0.5rem; }
.advantage__num {
  padding-top: 0.25rem;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--color-accent);
}
.advantage__title { font-size: 1.25rem; margin-bottom: 0.25rem; color: var(--color-on-dark); }
.advantage__text { margin: 0; color: var(--color-on-dark-muted); }
.advantage__arrow { width: 1.25rem; height: 1.25rem; margin-top: 0.3rem; color: var(--color-accent); transform: rotate(-45deg); }

/* ---------- 6. Galeria ---------- */
.gallery { display: grid; gap: 1.25rem; }
.gallery__item figure {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}
.gallery__item figure:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.gallery__link { position: relative; display: block; overflow: hidden; }
.gallery__link img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--color-primary-light);
  transition: transform 0.5s var(--ease);
}
/* Ícone de ampliar */
.gallery__link::after {
  content: "";
  position: absolute;
  right: 0.85rem;
  bottom: 0.85rem;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--color-accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300093a' stroke-width='2.4' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m20 20-4-4M11 8v6M8 11h6'/%3E%3C/svg%3E") center / 22px no-repeat;
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.25s, transform 0.25s;
}
.gallery__link:hover img,
.gallery__link:focus-visible img { transform: scale(1.05); }
.gallery__link:hover::after,
.gallery__link:focus-visible::after { opacity: 1; transform: none; }
.gallery__link:focus-visible { outline-offset: -4px; }
.gallery figcaption { padding: 1rem 1.15rem 1.2rem; }
.gallery__name { display: block; font-family: var(--font-heading); font-size: 1.05rem; color: var(--color-primary); margin-bottom: 0.2rem; }
.gallery__meta { display: block; font-size: 0.9rem; color: var(--color-text-muted); }

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4.5rem 1rem 3.5rem;
  background: rgba(0, 6, 36, 0.94);
  animation: lb-in 0.2s ease;
}
.lightbox[hidden] { display: none; }
@keyframes lb-in { from { opacity: 0; } to { opacity: 1; } }
.lightbox__figure { margin: 0; max-width: min(1200px, 100%); max-height: 100%; display: flex; flex-direction: column; align-items: center; }
.lightbox__img {
  max-width: 100%;
  max-height: calc(100vh - 11rem);
  max-height: calc(100dvh - 11rem);
  width: auto;
  height: auto;
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.lightbox__caption { margin-top: 1rem; color: var(--color-on-dark); text-align: center; font-weight: 500; max-width: 60ch; }
.lightbox__counter {
  position: absolute;
  top: 1.3rem;
  left: 1.25rem;
  margin: 0;
  color: var(--color-on-dark-muted);
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
}
.lightbox__btn {
  position: absolute;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-on-dark);
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s;
}
.lightbox__btn:hover { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-primary-deep); }
.lightbox__btn .icon { width: 24px; height: 24px; }
.lightbox__close { top: 0.75rem; right: 0.75rem; }
.lightbox__prev,
.lightbox__next { bottom: 0.75rem; }
.lightbox__prev { left: calc(50% - 56px); }
.lightbox__next { right: calc(50% - 56px); }
.lightbox :focus-visible { outline-color: var(--color-accent); }

/* ---------- Chamada para orçamento ---------- */
.cta-band {
  padding: 3rem 0;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.12) 0 30%, transparent 30%),
    var(--color-accent);
  color: var(--color-primary-deep);
}
.cta-band__inner { display: grid; gap: 1.5rem; align-items: center; }
.cta-band__title { font-size: clamp(1.5rem, 4vw, 2.1rem); font-weight: 800; color: var(--color-primary-deep); margin-bottom: 0.35rem; }
.cta-band__text { margin: 0; font-weight: 500; }
.cta-band .btn { justify-self: start; }
.cta-band :focus-visible { outline-color: var(--color-primary-deep); }

/* ---------- 7. Contato ---------- */
.contact { display: grid; gap: 2.5rem; }
.contact__intro p { color: var(--color-text-muted); }
.contact__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.75rem; }

.contact__list {
  display: grid;
  gap: 0;
  padding: 0.5rem 1.5rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}
.contact__list li { display: flex; gap: 1rem; align-items: flex-start; padding: 1.1rem 0; }
.contact__list li + li { border-top: 1px solid var(--color-border); }
.contact__icon {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--color-primary);
  color: var(--color-on-dark);
}
.contact__icon .icon { width: 22px; height: 22px; }
.contact__label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-steel);
}
.contact__list a,
.contact__list address { color: var(--color-text); font-weight: 500; word-break: break-word; }
.contact__list a { text-decoration: none; }
.contact__list a:hover { color: var(--color-primary); text-decoration: underline; }
.contact__map { display: inline-block; margin-top: 0.35rem; font-size: 0.9rem; color: var(--color-ruler) !important; text-decoration: underline !important; }

/* ---------- 8. Rodapé ---------- */
.site-footer {
  padding: 3.5rem 0 6rem; /* espaço extra para o botão flutuante no celular */
  background: var(--color-primary-deep);
  color: var(--color-on-dark-muted);
  font-size: 0.92rem;
}
.site-footer__grid { display: grid; gap: 2rem; }
.site-footer p { margin: 0 0 0.75rem; }
.site-footer__tagline { font-family: var(--font-heading); font-weight: 700; font-size: 1.15rem; line-height: 1.3; color: #fff; }
.site-footer__tagline span { color: var(--color-accent); }
.site-footer a { color: var(--color-on-dark-muted); text-decoration: none; }
.site-footer a:hover { color: var(--color-accent); }
.site-footer :focus-visible { outline-color: var(--color-accent); }
.site-footer__logo { display: inline-block; margin-bottom: 1rem; }
.site-footer__logo img { width: 200px; height: auto; }
.site-footer a.site-footer__logo:hover { opacity: 0.9; }
.site-footer__heading {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--color-on-dark) !important;
}
.site-footer__links { display: grid; gap: 0.5rem; }
.site-footer__bottom {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.85rem;
}
.site-footer__bottom p { margin: 0; }

.social { display: flex; gap: 0.6rem; margin-top: 1.25rem; }
.social a {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  color: var(--color-on-dark);
}
.social a:hover { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-primary-deep); }

/* ---------- Botão flutuante de WhatsApp ---------- */
.whatsapp-float {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 90;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--color-whatsapp);
  color: #fff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  transition: transform 0.2s, background-color 0.2s;
}
.whatsapp-float::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--color-whatsapp);
  animation: pulse 2.4s ease-out infinite;
}
@keyframes pulse {
  0% { transform: scale(1); opacity: 0.7; }
  70%, 100% { transform: scale(1.45); opacity: 0; }
}
.whatsapp-float .icon { width: 32px; height: 32px; }
.whatsapp-float:hover { background: var(--color-whatsapp-dark); color: #fff; transform: scale(1.06); }
.whatsapp-float:focus-visible { outline-offset: 4px; border-radius: 50%; }

/* ==========================================================================
   Celular (< 640px)
   ========================================================================== */
.only-desktop { display: none; }
@media (max-width: 639.98px) {
  /* Botões principais ocupam a largura toda */
  .hero__actions .btn,
  .contact__actions .btn,
  .cta-band .btn { width: 100%; }
  .cta-band .btn { justify-self: stretch; }

  /* Galeria vira carrossel horizontal de deslizar */
  .gallery {
    grid-auto-flow: column;
    grid-auto-columns: 84%;
    gap: 0.9rem;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scroll-snap-type: x mandatory;
    margin-inline: calc(-1 * var(--gutter));
    padding: 0.25rem var(--gutter) 1rem;
    scroll-padding-inline: var(--gutter);
    scrollbar-width: none;
  }
  .gallery::-webkit-scrollbar { display: none; }
  .gallery__item { scroll-snap-align: start; }
}
@media (min-width: 640px) {
  .only-desktop { display: inline; }
  .only-mobile { display: none; }
}

/* ==========================================================================
   Tablet (≥ 640px)
   ========================================================================== */
@media (min-width: 640px) {
  :root { --gutter: 2rem; }
  .cards,
  .gallery,
  .steps { grid-template-columns: repeat(2, 1fr); }
  .principles__list { grid-template-columns: repeat(3, 1fr); }
  .cta-band__inner { grid-template-columns: 1fr auto; }
  .site-footer__grid { grid-template-columns: repeat(2, 1fr); }
}

/* ==========================================================================
   Desktop (≥ 960px)
   ========================================================================== */
@media (min-width: 960px) {
  :root { --section-space: 6rem; --header-h: 82px; }

  .topbar {
    display: block;
    background: var(--color-primary-deep);
    color: var(--color-on-dark-muted);
    font-size: 0.85rem;
  }
  .topbar__inner { display: flex; justify-content: flex-end; gap: 2rem; min-height: 38px; align-items: center; }
  .topbar__item { display: inline-flex; align-items: center; gap: 0.45rem; margin: 0; color: var(--color-on-dark-muted); text-decoration: none; }
  a.topbar__item:hover { color: var(--color-on-dark); }
  .topbar .icon { width: 16px; height: 16px; color: var(--color-accent); }
  .topbar :focus-visible { outline-color: var(--color-accent); }

  .brand img { height: 58px; }

  .nav-toggle { display: none; }
  .site-nav,
  .no-js .site-nav {
    position: static;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 2rem;
    padding: 0;
    background: none;
    border: 0;
    box-shadow: none;
  }
  .site-nav__list { flex-direction: row; gap: 1.75rem; }
  .site-nav__list a { padding: 0.5rem 0; border: 0; position: relative; }
  .site-nav__list a::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: 0;
    height: 3px;
    border-radius: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transition: transform 0.25s var(--ease);
  }
  .site-nav__list a:hover::after,
  .site-nav__list a.is-active::after { transform: scaleX(1); }
  .site-nav__cta { align-self: auto; }

  .hero { padding: 7rem 0; min-height: 580px; display: flex; align-items: center; }
  .hero__bg { object-position: center; }


  .section__head--split { display: flex; align-items: flex-end; justify-content: space-between; gap: 3rem; }
  .section__head--split .section__title { margin-bottom: 0; }

  .about { grid-template-columns: 1.4fr 1fr; gap: 5rem; align-items: start; }

  .cards,
  .gallery { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }

  .steps { grid-template-columns: repeat(4, 1fr); }
  /* Linha conectando as etapas */
  .step::after {
    content: "";
    position: absolute;
    top: calc(1.5rem + 22px);
    left: calc(1.5rem + 56px);
    right: -1.5rem;
    height: 2px;
    background: repeating-linear-gradient(90deg, var(--color-accent) 0 8px, transparent 8px 14px);
  }
  .step:last-child::after { display: none; }

  .advantages { grid-template-columns: 0.95fr 1.05fr; gap: 5rem; align-items: center; }

  .contact { grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; }

  .lightbox { padding: 4.5rem 6rem; }
  .lightbox__prev,
  .lightbox__next { top: 50%; bottom: auto; transform: translateY(-50%); }
  .lightbox__prev { left: 1.5rem; }
  .lightbox__next { right: 1.5rem; }
  .lightbox__img { max-height: calc(100vh - 9rem); max-height: calc(100dvh - 9rem); }

  .site-footer { padding-bottom: 2.5rem; }
  .site-footer__grid { grid-template-columns: 1.4fr 1fr 1.2fr; gap: 3rem; }

  .whatsapp-float { right: 1.5rem; bottom: 1.5rem; }
}

/* Clientes: preserve as cores e proporções de cada marca. */
.clients__list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; list-style: none; margin: 0; padding: 0; }
.clients__item { min-width: 0; display: grid; place-items: center; padding: 2rem; min-height: 220px; background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-lg); }
.clients__item img { display: block; width: 100%; height: 155px; object-fit: contain; }
@media (min-width: 640px) { .clients__list { grid-template-columns: repeat(2, minmax(0, 1fr)); } .clients__item { padding: 1.5rem; } }

.clients__item--task { background: #192a34; }
.clients__item--task img { object-fit: cover; object-position: center; }
@media (max-width: 639.98px) { .clients__list { gap: .75rem; } .clients__item { min-height: 135px; padding: .75rem; } .clients__item img { height: 100px; } .clients__item--task img { object-fit: contain; } }