/* ==========================================================
   MR Usinagem — style.css
   Mobile-first. Breakpoints: 480 / 768 / 1024 / 1280
   ========================================================== */

:root {
  --graphite: #171A1D;
  --industrial: #292E33;
  --yellow: #F2B705;
  --yellow-dark: #D9A300;
  --white: #FFFFFF;
  --gray-light: #F2F4F5;
  --gray-text: #59616A;
  --line-dark: rgba(255, 255, 255, .12);
  --line-light: #DDE1E4;

  --font-title: "Montserrat", "Segoe UI", Arial, sans-serif;
  --font-body: "Inter", "Segoe UI", Arial, sans-serif;

  --gutter: clamp(1rem, 5vw, 2rem);
  --section-y: clamp(3.5rem, 8vw, 6.5rem);
  --radius: 8px;
  --header-h: 68px;
  --shadow: 0 12px 32px rgba(23, 26, 29, .10);
  --ease: cubic-bezier(.2, .7, .2, 1);
}

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

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

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

img, svg { max-width: 100%; height: auto; display: block; }
h1, h2, h3, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; }

h1, h2, h3 {
  font-family: var(--font-title);
  color: var(--graphite);
  line-height: 1.15;
  letter-spacing: -.015em;
  overflow-wrap: anywhere;
}
h1 { font-size: clamp(2rem, 6.5vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 4.8vw, 2.5rem); font-weight: 800; }
h3 { font-size: clamp(1.1rem, 3vw, 1.28rem); font-weight: 700; }

.container {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

.skip-link {
  position: absolute;
  left: 1rem; top: -4rem;
  z-index: 200;
  background: var(--yellow);
  color: var(--graphite);
  padding: .7rem 1rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius);
  transition: top .2s;
}
.skip-link:focus { top: 1rem; }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  min-height: 48px;
  padding: .8rem 1.4rem;
  font-family: var(--font-title);
  font-size: .95rem;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform .22s var(--ease), background-color .22s, color .22s, border-color .22s, box-shadow .22s;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--yellow); color: var(--graphite); }
.btn-primary:hover { background: var(--yellow-dark); box-shadow: 0 8px 22px rgba(242, 183, 5, .32); }
.btn-dark { background: var(--graphite); color: var(--white); }
.btn-dark:hover { background: var(--industrial); box-shadow: 0 8px 20px rgba(23, 26, 29, .2); }
.btn-outline-light { border-color: rgba(255, 255, 255, .45); color: var(--white); background: transparent; }
.btn-outline-light:hover { border-color: var(--yellow); color: var(--yellow); }
.btn-lg { min-height: 54px; padding: .95rem 1.6rem; font-size: 1rem; }
.btn-block { width: 100%; }
.wa-icon { width: 20px; height: 20px; flex: none; }
.btn-row { display: flex; flex-direction: column; gap: .8rem; }

/* ---------- Cabeçalho ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(23, 26, 29, .95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-dark);
  transition: box-shadow .25s, background-color .25s;
}
.site-header.is-scrolled { box-shadow: 0 8px 28px rgba(0, 0, 0, .38); }
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand { display: inline-flex; align-items: center; gap: .65rem; text-decoration: none; min-width: 0; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 40px; height: 40px;
  flex: none;
  background: var(--yellow);
  border-radius: 6px;
  overflow: hidden;
  padding: 3px;
}
.brand-logo { width: 100%; height: 100%; object-fit: contain; }
.brand-name {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--white);
  white-space: nowrap;
}
.brand-name span { color: var(--yellow); }

.header-cta { display: none; }

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  padding: 0 9px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 6px;
  cursor: pointer;
}
.menu-toggle-bar {
  display: block;
  width: 100%; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform .25s var(--ease), opacity .2s;
}
.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.main-nav {
  position: fixed;
  inset: var(--header-h) 0 0 0;
  background: var(--graphite);
  padding: 2rem var(--gutter);
  transform: translateX(100%);
  transition: transform .3s var(--ease);
  overflow-y: auto;
  z-index: 99;
}
.main-nav.is-open { transform: translateX(0); }
.main-nav ul { display: flex; flex-direction: column; gap: .3rem; }
.main-nav a:not(.btn) {
  display: block;
  padding: .9rem 0;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px solid var(--line-dark);
  transition: color .2s;
}
.main-nav a:not(.btn):hover { color: var(--yellow); }
.nav-cta-mobile { margin-top: 1.5rem; }
.nav-cta-mobile .btn { width: 100%; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding-top: calc(var(--header-h) + clamp(2.5rem, 6vw, 4.5rem));
  background: var(--graphite);
  color: var(--white);
  overflow: hidden;
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse at 50% 35%, #000 35%, transparent 85%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 35%, #000 35%, transparent 85%);
  animation: gridDrift 22s linear infinite;
  pointer-events: none;
}
.hero-glow {
  position: absolute;
  top: -120px; right: -80px;
  width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(242, 183, 5, .14), transparent 65%);
  pointer-events: none;
}
@keyframes gridDrift {
  0% { background-position: 0 0; }
  100% { background-position: 44px 44px; }
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 2.5rem;
  align-items: center;
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
}
.eyebrow {
  font-family: var(--font-title);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: .75rem;
}
.eyebrow-dark { color: #B88600; }

.hero h1 { color: var(--white); margin-bottom: 1.15rem; }
.hero-sub { font-size: clamp(1.05rem, 2.8vw, 1.22rem); color: rgba(255, 255, 255, .9); margin-bottom: .75rem; }
.hero-sub strong { color: var(--white); }
.hero-complement { color: rgba(255, 255, 255, .68); margin-bottom: 1.8rem; max-width: 56ch; }

.media-frame {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--industrial);
  border: 1px solid rgba(255, 255, 255, .14);
  box-shadow: 0 22px 50px rgba(0, 0, 0, .42);
}
.media-frame img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center 20%;
  transition: transform .6s var(--ease);
}
.media-frame:hover img { transform: scale(1.03); }
.media-badge {
  position: absolute;
  left: 1rem; bottom: 1rem;
  background: rgba(23, 26, 29, .86);
  backdrop-filter: blur(6px);
  color: var(--yellow);
  font-family: var(--font-title);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .04em;
  padding: .45rem .8rem;
  border-radius: 4px;
  border: 1px solid rgba(242, 183, 5, .35);
}
.corner {
  position: absolute;
  width: 18px; height: 18px;
  border-color: var(--yellow);
  border-style: solid;
  pointer-events: none;
}
.corner-tl { top: 10px; left: 10px; border-width: 3px 0 0 3px; }
.corner-br { right: 10px; bottom: 10px; border-width: 0 3px 3px 0; }

/* Faixa de credibilidade */
.proof-strip {
  position: relative;
  z-index: 2;
  background: rgba(41, 46, 51, .75);
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  padding: 1.5rem 0;
}
.proof-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}
.proof-item {
  display: flex;
  flex-direction: column;
  gap: .2rem;
  border-left: 3px solid var(--yellow);
  padding-left: .9rem;
}
.proof-value {
  font-family: var(--font-title);
  font-size: clamp(1.15rem, 2.5vw, 1.45rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
}
.proof-item span { font-size: .88rem; color: rgba(255, 255, 255, .72); line-height: 1.4; }

.scroll-indicator {
  display: none;
}

/* ---------- Seções ---------- */
.section { padding: var(--section-y) 0; }
.section-light { background: var(--white); }
.section-gray { background: var(--gray-light); }
.section-dark { background: var(--graphite); color: rgba(255, 255, 255, .82); }
.section-dark h2, .section-dark h3 { color: var(--white); }

.section-head { max-width: 68ch; margin-bottom: clamp(2rem, 5vw, 3.2rem); }
.section-head p:last-child { margin-top: .75rem; font-size: 1.05rem; }
.section-head-dark p:last-child { color: rgba(255, 255, 255, .74); }

/* ---------- Cards de Produtos ---------- */
.cards { display: grid; gap: 1.5rem; }
.card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .28s var(--ease), box-shadow .28s var(--ease), border-color .28s;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
  border-color: var(--yellow);
}
.card-media {
  display: grid;
  place-items: center;
  height: 130px;
  background: var(--industrial);
  color: var(--yellow);
  border-bottom: 3px solid var(--yellow);
}
.card-media svg { width: 96px; height: 72px; transition: transform .35s var(--ease); }
.card:hover .card-media svg { transform: scale(1.08); }
.card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 1.5rem;
}
.card-tag {
  font-family: var(--font-title);
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: #A67900;
  margin-bottom: .4rem;
}
.card-body h3 { margin-bottom: .6rem; }
.card-body > p { font-size: .96rem; margin-bottom: 1rem; }
.card-specs {
  margin-top: auto;
  padding: .85rem 0;
  border-top: 1px solid var(--line-light);
  display: flex;
  flex-direction: column;
  gap: .35rem;
  font-size: .86rem;
}
.card-specs strong { color: var(--graphite); }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  margin-top: .5rem;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: .95rem;
  color: var(--graphite);
  text-decoration: none;
  padding: .5rem 0;
  transition: color .2s, gap .2s;
}
.card-link:hover { color: #B88600; gap: .75rem; }

/* ---------- Destaque Real ---------- */
.feature-grid { display: grid; gap: 2.2rem; align-items: center; }
.feature-text p { margin-bottom: 1.2rem; color: rgba(255, 255, 255, .78); }
.feature-text h2 { margin-bottom: 1rem; }
.feature-list { display: grid; gap: .6rem; margin-bottom: 1.8rem; }
.feature-list li {
  position: relative;
  padding-left: 1.5rem;
  color: rgba(255, 255, 255, .9);
  font-size: .96rem;
}
.feature-list li::before {
  content: "";
  position: absolute;
  left: 0; top: .58rem;
  width: 8px; height: 8px;
  border-radius: 2px;
  background: var(--yellow);
}

/* ---------- Galeria + Filtros + Lightbox ---------- */
.gallery-head {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  max-width: none;
}
.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}
.filter-btn {
  padding: .55rem 1rem;
  font-family: var(--font-title);
  font-size: .85rem;
  font-weight: 700;
  color: var(--graphite);
  background: var(--gray-light);
  border: 1px solid var(--line-light);
  border-radius: 999px;
  cursor: pointer;
  transition: background-color .2s, color .2s, border-color .2s;
}
.filter-btn:hover { border-color: var(--graphite); }
.filter-btn.is-active {
  background: var(--graphite);
  color: var(--yellow);
  border-color: var(--graphite);
}

.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.15rem;
}
.gallery-item {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line-light);
  background: var(--graphite);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.gallery-item.is-hidden { display: none; }
.gallery-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.gallery-trigger {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: zoom-in;
  position: relative;
}
.gallery-trigger img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center 22%;
  transition: transform .45s var(--ease), opacity .25s;
}
.gallery-item:hover img { transform: scale(1.05); opacity: .9; }
.gallery-trigger figcaption {
  padding: .9rem 1rem;
  background: var(--graphite);
  color: var(--white);
  display: flex;
  flex-direction: column;
  gap: .2rem;
}
.gal-tag {
  font-family: var(--font-title);
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--yellow);
}
.gallery-trigger strong { font-family: var(--font-title); font-size: .95rem; font-weight: 700; }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(15, 17, 20, .94);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.lightbox[hidden] { display: none; }
.lightbox-figure {
  max-width: 920px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .9rem;
}
.lightbox-figure img {
  max-height: 78vh;
  width: auto;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, .15);
}
.lightbox-figure figcaption { color: var(--white); text-align: center; font-size: .98rem; max-width: 65ch; }
.lightbox-close, .lightbox-nav {
  position: absolute;
  background: rgba(255, 255, 255, .1);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 50%;
  width: 44px; height: 44px;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background-color .2s, color .2s;
}
.lightbox-close:hover, .lightbox-nav:hover { background: var(--yellow); color: var(--graphite); }
.lightbox-close { top: 1rem; right: 1rem; }
.lightbox-prev { left: 1rem; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 1rem; top: 50%; transform: translateY(-50%); }

/* ---------- Aplicações ---------- */
.segments { display: grid; gap: 1.25rem; }
.segment {
  background: var(--white);
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .65rem;
  transition: transform .25s var(--ease), border-color .25s, box-shadow .25s;
}
.segment:hover { transform: translateY(-3px); border-color: var(--yellow); box-shadow: var(--shadow); }
.segment-icon {
  display: grid;
  place-items: center;
  width: 48px; height: 48px;
  border-radius: 8px;
  background: var(--graphite);
  color: var(--yellow);
  padding: 10px;
}
.segment p { font-size: .95rem; }

.inline-cta {
  margin-top: 2rem;
  padding: 1.75rem;
  background: var(--white);
  border: 1px solid var(--line-light);
  border-left: 5px solid var(--yellow);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  align-items: flex-start;
  justify-content: space-between;
}
.inline-cta p { margin-top: .3rem; font-size: .95rem; }

/* ---------- Como Funciona ---------- */
.steps-grid { display: grid; gap: 1.5rem; counter-reset: step; }
.step-card {
  background: var(--industrial);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  padding: 1.75rem;
  position: relative;
  transition: transform .25s var(--ease), border-color .25s;
}
.step-card:hover { transform: translateY(-4px); border-color: var(--yellow); }
.step-num {
  display: inline-block;
  font-family: var(--font-title);
  font-size: 2rem;
  font-weight: 800;
  color: var(--yellow);
  line-height: 1;
  margin-bottom: .9rem;
}
.step-card h3 { margin-bottom: .6rem; }
.step-card p { font-size: .95rem; color: rgba(255, 255, 255, .78); }

/* ---------- Sobre ---------- */
.about-grid { display: grid; gap: 2.2rem; align-items: center; }
.bar { display: block; width: 56px; height: 4px; background: var(--yellow); margin: 1rem 0 1.25rem; border-radius: 2px; }
.about-content .lead { font-size: 1.08rem; color: var(--graphite); font-weight: 500; margin-bottom: .9rem; }
.about-content p + p { margin-bottom: 1.4rem; }
.about-pillars {
  display: grid;
  gap: 1rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line-light);
}
.about-pillars div { display: flex; flex-direction: column; gap: .2rem; }
.about-pillars strong { font-family: var(--font-title); color: var(--graphite); font-size: .98rem; }
.about-pillars span { font-size: .9rem; }

/* ---------- FAQ ---------- */
.faq-container { max-width: 880px; }
.faq-list { display: grid; gap: .8rem; }
.faq-item {
  background: var(--white);
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .2s;
}
.faq-item.is-open { border-color: var(--graphite); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.35rem;
  background: transparent;
  border: 0;
  font-family: var(--font-title);
  font-size: 1rem;
  font-weight: 700;
  color: var(--graphite);
  text-align: left;
  cursor: pointer;
}
.faq-icon {
  flex: none;
  font-size: 1.35rem;
  line-height: 1;
  color: #B88600;
  transition: transform .25s var(--ease);
}
.faq-q[aria-expanded="true"] .faq-icon { transform: rotate(45deg); }
.faq-a { padding: 0 1.35rem 1.2rem; font-size: .96rem; }
.faq-a[hidden] { display: none; }

/* ---------- CTA Band ---------- */
.cta-band { text-align: center; background: linear-gradient(135deg, var(--graphite) 0%, #23282D 100%); }
.cta-inner { max-width: 680px; display: flex; flex-direction: column; align-items: center; gap: 1rem; }
.cta-inner p { color: rgba(255, 255, 255, .78); margin-bottom: .5rem; }

/* ---------- Formulário & Contato ---------- */
.contact-grid { display: grid; gap: 2.2rem; align-items: start; }
.contact-intro > p { margin-top: .75rem; }
.direct-wa-box {
  margin-top: 1.5rem;
  padding: 1.35rem;
  background: var(--white);
  border: 1px solid var(--line-light);
  border-left: 4px solid var(--yellow);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: .65rem;
  align-items: flex-start;
}
.direct-wa-box strong { font-family: var(--font-title); color: var(--graphite); }
.direct-wa-box p { font-size: .92rem; }

.form {
  background: var(--white);
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  padding: clamp(1.35rem, 4vw, 2rem);
  display: grid;
  gap: 1.1rem;
  box-shadow: var(--shadow);
}
.field { display: flex; flex-direction: column; gap: .4rem; }
.field label {
  font-family: var(--font-title);
  font-size: .88rem;
  font-weight: 700;
  color: var(--graphite);
}
.req { color: #C0392B; }
.opt { font-weight: 500; color: var(--gray-text); font-size: .8rem; }
.field input, .field select, .field textarea {
  width: 100%;
  padding: .8rem .9rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--graphite);
  background: var(--gray-light);
  border: 1px solid var(--line-light);
  border-radius: 6px;
  transition: border-color .2s, background-color .2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--graphite);
  background: var(--white);
}
.field.has-error input, .field.has-error textarea { border-color: #C0392B; }
.field-error { font-size: .82rem; color: #C0392B; min-height: 1em; }
.form-status { margin-top: .6rem; font-size: .9rem; font-weight: 600; color: var(--graphite); text-align: center; }

/* ---------- Rodapé ---------- */
.site-footer {
  background: var(--graphite);
  color: rgba(255, 255, 255, .74);
  padding-top: 3.5rem;
  border-top: 1px solid var(--line-dark);
}
.footer-grid { display: grid; gap: 2rem; padding-bottom: 2.5rem; }
.footer-brand p { margin-top: .9rem; font-size: .92rem; max-width: 36ch; }
.footer-title {
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--white);
  margin-bottom: .9rem;
}
.site-footer nav ul { display: grid; gap: .45rem; }
.site-footer nav a { text-decoration: none; font-size: .94rem; transition: color .2s; }
.site-footer nav a:hover { color: var(--yellow); }
.footer-contact-info { font-size: .92rem; margin-bottom: .35rem; }
.footer-wa {
  display: inline-block;
  margin-top: .5rem;
  color: var(--yellow);
  font-family: var(--font-title);
  font-weight: 700;
  text-decoration: none;
}
.footer-wa:hover { text-decoration: underline; }
.footer-bottom {
  border-top: 1px solid var(--line-dark);
  padding: 1.25rem var(--gutter);
  font-size: .86rem;
  text-align: center;
}

/* ---------- Botão Flutuante WhatsApp ---------- */
.wa-float {
  position: fixed;
  right: 1.25rem; bottom: 1.25rem;
  z-index: 90;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: var(--yellow);
  color: var(--graphite);
  display: grid;
  place-items: center;
  box-shadow: 0 10px 26px rgba(0, 0, 0, .3);
  transition: transform .2s var(--ease);
}
.wa-float::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--yellow);
  animation: waPulse 2.4s ease-out infinite;
}
@keyframes waPulse {
  0% { transform: scale(1); opacity: .7; }
  100% { transform: scale(1.45); opacity: 0; }
}
.wa-float:hover { transform: scale(1.07); }
.wa-float svg { width: 26px; height: 26px; }

/* ---------- Animações de Entrada ---------- */
.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.js .reveal[data-delay="1"] { transition-delay: .08s; }
.js .reveal[data-delay="2"] { transition-delay: .16s; }
.js .reveal[data-delay="3"] { transition-delay: .24s; }
.js .reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .js .reveal { opacity: 1; transform: none; }
}

/* ---------- Responsivo ---------- */
@media (min-width: 480px) {
  .btn-row { flex-direction: row; flex-wrap: wrap; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .proof-grid { grid-template-columns: repeat(4, 1fr); }
  .cards { grid-template-columns: repeat(3, 1fr); }
  .segments { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(3, 1fr); }
  .about-pillars { grid-template-columns: repeat(2, 1fr); }
  .inline-cta { flex-direction: row; align-items: center; }
  .form { grid-template-columns: repeat(2, 1fr); }
  .field-full { grid-column: 1 / -1; }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
}

@media (min-width: 1024px) {
  .menu-toggle { display: none; }
  .main-nav {
    position: static;
    inset: auto;
    background: transparent;
    padding: 0;
    transform: none;
    overflow: visible;
  }
  .main-nav ul { flex-direction: row; align-items: center; gap: 1.6rem; }
  .main-nav a:not(.btn) { padding: .4rem 0; font-size: .92rem; border-bottom: 0; }
  .nav-cta-mobile { display: none; }
  .header-cta { display: inline-flex; }

  .hero-inner { grid-template-columns: 1.15fr .85fr; gap: 3rem; }
  .feature-grid { grid-template-columns: .9fr 1.1fr; gap: 3.5rem; }
  .about-grid { grid-template-columns: .95fr 1.05fr; gap: 3.5rem; }
  .contact-grid { grid-template-columns: .9fr 1.1fr; gap: 3.5rem; }
  .gallery-head { flex-direction: row; align-items: flex-end; justify-content: space-between; }
  .gallery-grid { grid-template-columns: repeat(4, 1fr); }
  .segments { grid-template-columns: repeat(4, 1fr); }
}