/* =========================================================
   Grama Express Rondônia — Landing Page
   ========================================================= */

:root {
  --verde: #2aa02a;
  --verde-escuro: #1c7a1c;
  --verde-mais-escuro: #0f4d13;
  --azul: #132f9c;
  --azul-escuro: #0c1f6b;
  --amarelo: #fabe12;
  --cinza-escuro: #333333;
  --branco: #ffffff;

  --bg-claro: #f6faf5;
  --bg-secao: #eef7ec;
  --texto: var(--cinza-escuro);
  --texto-claro: #666f66;

  --font: 'Poppins', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

  --container: 1180px;
  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(15, 40, 15, 0.12);
  --shadow-lg: 0 20px 60px rgba(15, 40, 15, 0.22);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--texto);
  background: var(--bg-claro);
  overflow-x: hidden;
  width: 100%;
}

img, video { max-width: 100%; display: block; }

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 700;
  line-height: 1.18;
}

p { margin: 0; line-height: 1.65; }

a { text-decoration: none; color: inherit; }

ul { margin: 0; padding: 0; list-style: none; }

button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  /* Establish a stacking context above decorative absolutely-positioned
     elements (e.g. .icon-watermark) in the same section — without this,
     a position:absolute sibling with z-index:0 paints above this static
     content regardless of DOM order or its own z-index. */
  position: relative;
  z-index: 1;
}

.section {
  padding: 110px 0;
  position: relative;
  overflow: hidden;
}

.section--tight { padding: 80px 0; }

.section--verde {
  background: linear-gradient(160deg, var(--verde-mais-escuro), var(--verde-escuro) 55%, var(--verde));
  color: var(--branco);
}

.section--claro { background: var(--bg-claro); }
.section--alt { background: var(--bg-secao); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--verde-escuro);
  margin-bottom: 16px;
}

.section--verde .eyebrow, .beneficios .eyebrow { color: var(--amarelo); }

.eyebrow::before {
  content: '';
  width: 26px;
  height: 3px;
  border-radius: 3px;
  background: var(--amarelo);
  display: inline-block;
}

.section-head {
  max-width: 680px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-head h2 {
  font-size: clamp(28px, 4vw, 42px);
  color: var(--verde-mais-escuro);
}

.section--verde .section-head h2, .beneficios .section-head h2 { color: var(--branco); }

.section-head p {
  margin-top: 16px;
  font-size: 17px;
  color: var(--texto-claro);
}

.section--verde .section-head p, .beneficios .section-head p { color: rgba(255,255,255,0.85); }

/* ---------- watermark icon decoration ---------- */
.icon-watermark {
  position: absolute;
  width: 420px;
  height: 420px;
  background: url('../idv/icone.png') no-repeat center / contain;
  opacity: 0.06;
  pointer-events: none;
  z-index: 0;
}
.section--verde .icon-watermark { opacity: 0.09; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 30px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 15px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
  white-space: nowrap;
}

.btn--amarelo {
  background: var(--amarelo);
  color: #3a2b00;
  box-shadow: 0 10px 25px rgba(250, 190, 18, 0.35);
}
.btn--amarelo:hover { transform: translateY(-3px); box-shadow: 0 14px 30px rgba(250, 190, 18, 0.45); }

.btn--outline {
  border: 1.5px solid rgba(255,255,255,0.6);
  color: var(--branco);
}
.btn--outline:hover { background: rgba(255,255,255,0.12); transform: translateY(-3px); }

.btn--verde-outline {
  border: 1.5px solid var(--verde);
  color: var(--verde-escuro);
}
.btn--verde-outline:hover { background: var(--verde); color: var(--branco); transform: translateY(-3px); }

.btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.btn i { font-size: 17px; flex-shrink: 0; }

/* =========================================================
   HEADER
   ========================================================= */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: linear-gradient(180deg, rgba(15,77,19,0.92), rgba(15,77,19,0.75));
  backdrop-filter: blur(6px);
  transition: background 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
  padding: 14px 0;
}
.header.is-scrolled {
  background: var(--verde-mais-escuro);
  box-shadow: 0 6px 24px rgba(0,0,0,0.25);
  padding: 8px 0;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.header__logo img {
  height: 42px;
  width: auto;
  transition: height 0.3s ease;
}
.header.is-scrolled .header__logo img { height: 36px; }

.nav {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav a {
  color: rgba(255,255,255,0.9);
  font-size: 14.5px;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}
.nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -4px;
  width: 0; height: 2px;
  background: var(--amarelo);
  transition: width 0.25s ease;
}
.nav a:hover::after { width: 100%; }

.header__actions { display: flex; align-items: center; gap: 18px; }

.btn--nav {
  padding: 11px 22px;
  font-size: 14px;
}

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border-radius: 10px;
  background: rgba(255,255,255,0.12);
  color: var(--branco);
  align-items: center;
  justify-content: center;
}
.nav-toggle svg { width: 22px; height: 22px; }

/* ---------- mobile nav drawer ---------- */
.mobile-nav {
  position: fixed;
  top: 0; right: 0;
  height: 100%;
  width: min(320px, 82vw);
  background: var(--verde-mais-escuro);
  z-index: 150;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 100px 30px 30px;
  transform: translateX(100%);
  transition: transform 0.35s ease;
  box-shadow: -20px 0 50px rgba(0,0,0,0.3);
}
.mobile-nav.is-open { transform: translateX(0); }
.mobile-nav a {
  color: var(--branco);
  font-size: 16px;
  font-weight: 500;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.mobile-nav .btn { margin-top: 20px; justify-content: center; }

.nav-scrim {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 140;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.nav-scrim.is-open { opacity: 1; pointer-events: auto; }

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  height: 420vh;
  background: #0a3a0d;
}

.hero__stage {
  position: sticky;
  top: 0;
  height: 100vh;
  width: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__video-wrap {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background: #0a3a0d;
}

.hero__video {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: translate(-50%, -50%);
}

/* contrast overlay: always keeps hero text readable regardless of video frame */
.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(6,26,7,0.72) 0%, rgba(6,26,7,0.38) 32%, rgba(6,26,7,0.42) 60%, rgba(6,26,7,0.82) 100%),
    radial-gradient(ellipse at center, rgba(0,0,0,0.05), rgba(0,0,0,0.55) 85%);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 900px;
  padding: 0 24px;
  text-align: center;
  color: var(--branco);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  border-radius: 100px;
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.3);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 38px;
  text-shadow: 0 1px 3px rgba(0,0,0,0.4);
}
.hero__badge span { color: var(--amarelo); }

.hero__stages { position: relative; height: 230px; }

.hero__stage-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 26px;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  pointer-events: none;
}
.hero__stage-text.is-active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.hero__stage-text h1 {
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.32;
  text-shadow: 0 4px 22px rgba(0,0,0,0.55);
  letter-spacing: -0.01em;
}
.hero__stage-text h1 em {
  font-style: normal;
  color: var(--amarelo);
}
.hero__stage-text p {
  font-size: clamp(15px, 1.8vw, 19px);
  line-height: 1.6;
  max-width: 560px;
  color: rgba(255,255,255,0.92);
  text-shadow: 0 2px 10px rgba(0,0,0,0.55);
}

.hero__cta {
  margin-top: 48px;
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero__progress {
  position: absolute;
  left: 50%;
  bottom: 38px;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.85);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}

.hero__progress-track {
  width: 3px;
  height: 46px;
  background: rgba(255,255,255,0.28);
  border-radius: 3px;
  overflow: hidden;
}
.hero__progress-fill {
  width: 100%;
  height: 0%;
  background: var(--amarelo);
  border-radius: 3px;
  transition: height 0.1s linear;
}

.hero__scene-dot {
  position: absolute;
  right: 30px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.hero__scene-dot span {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.35);
  transition: background 0.3s ease, transform 0.3s ease;
  display: block;
}
.hero__scene-dot span.is-active {
  background: var(--amarelo);
  transform: scale(1.35);
}

/* =========================================================
   PROBLEMA / AGITAÇÃO
   ========================================================= */
.problema {
  background: var(--bg-claro);
}

.problema__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 60px;
  align-items: center;
}

.problema__signs {
  display: flex;
  flex-direction: column;
  gap: 22px;
  margin-top: 34px;
}

.sign {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 20px;
  background: var(--branco);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
}

.sign__num {
  flex-shrink: 0;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(250, 190, 18, 0.18);
  color: var(--amarelo);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.sign h4 { font-size: 16.5px; margin-bottom: 6px; color: var(--verde-mais-escuro); }
.sign p { color: var(--texto-claro); font-size: 14.5px; }

.problema__media {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.problema__media img { width: 100%; height: 560px; object-fit: cover; }

.problema__media-tag {
  position: absolute;
  left: 20px; bottom: 20px;
  background: rgba(15, 40, 15, 0.72);
  color: var(--branco);
  padding: 10px 18px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  backdrop-filter: blur(4px);
}

/* =========================================================
   O QUE É
   ========================================================= */
.oque {
  background: var(--bg-secao);
}
.oque__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  grid-template-areas: "media heading" "media text";
  gap: 8px 64px;
  align-items: center;
}
.oque__heading { grid-area: heading; align-self: end; }
.oque__text { grid-area: text; align-self: start; }
.oque__media {
  grid-area: media;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.oque__media img { width: 100%; height: 500px; object-fit: cover; }

.oque__heading h2 {
  font-size: clamp(28px, 3.6vw, 38px);
  color: var(--verde-mais-escuro);
  margin-bottom: 20px;
}
.oque__text p { color: var(--texto-claro); font-size: 16.5px; margin-bottom: 16px; }
.oque__text p strong { color: var(--cinza-escuro); }

.oque__pills {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.pill {
  padding: 10px 18px;
  border-radius: 100px;
  background: var(--branco);
  border: 1px solid rgba(42,160,42,0.25);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--verde-escuro);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.pill svg { width: 15px; height: 15px; }

/* =========================================================
   PROCESSO
   ========================================================= */
.processo { background: var(--bg-claro); }

.processo__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  position: relative;
}
.processo__steps::before {
  content: '';
  position: absolute;
  top: 34px;
  left: 60px;
  right: 60px;
  height: 2px;
  background: repeating-linear-gradient(90deg, rgba(42,160,42,0.35) 0 10px, transparent 10px 20px);
  z-index: 0;
}

.step { position: relative; z-index: 1; text-align: center; }
.step__num {
  width: 68px; height: 68px;
  border-radius: 50%;
  background: var(--branco);
  border: 2px solid var(--verde);
  color: var(--verde-escuro);
  font-size: 24px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 22px;
  box-shadow: var(--shadow);
}
.step h4 { font-size: 17px; color: var(--verde-mais-escuro); margin-bottom: 10px; }
.step p { font-size: 14px; color: var(--texto-claro); }

/* =========================================================
   BENEFÍCIOS
   ========================================================= */
.beneficios { background: var(--verde-mais-escuro); position: relative; }
.beneficios::before,
.beneficios::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.06), transparent 70%);
}
.beneficios::before { width: 500px; height: 500px; top: -180px; left: -180px; }
.beneficios::after { width: 500px; height: 500px; bottom: -220px; right: -160px; }

.beneficios__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
  z-index: 1;
}

.card-beneficio {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform 0.3s ease, background 0.3s ease;
}
.card-beneficio:hover { transform: translateY(-6px); background: rgba(255,255,255,0.1); }

.card-beneficio__icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: var(--amarelo);
  color: #3a2b00;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.card-beneficio__icon svg { width: 26px; height: 26px; }

.card-beneficio h4 { color: var(--branco); font-size: 18px; margin-bottom: 10px; }
.card-beneficio p { color: rgba(255,255,255,0.78); font-size: 14.5px; }

/* =========================================================
   ANTES E DEPOIS
   ========================================================= */
.comparador { background: var(--bg-secao); }

.comparador__box {
  position: relative;
  max-width: 920px;
  margin: 0 auto;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 16/9;
  cursor: ew-resize;
  user-select: none;
  /* Without this, touch-dragging horizontally is interpreted as an
     attempt to scroll the page, which fights the drag and freezes it
     on mobile. This tells the browser the element handles all touch
     gestures itself. */
  touch-action: none;
}
.comparador__box img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
.comparador__after { clip-path: inset(0 0 0 50%); }

.comparador__handle {
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  width: 3px;
  background: var(--branco);
  transform: translateX(-50%);
  box-shadow: 0 0 0 4px rgba(255,255,255,0.25);
}
.comparador__handle-grip {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--branco);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  color: var(--verde-escuro);
}
.comparador__handle-grip svg { width: 20px; height: 20px; }

.comparador__label {
  position: absolute;
  bottom: 18px;
  padding: 8px 16px;
  border-radius: 100px;
  background: rgba(10,30,10,0.65);
  color: var(--branco);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  pointer-events: none;
}
.comparador__label--antes { left: 18px; }
.comparador__label--depois { right: 18px; }

/* =========================================================
   APLICAÇÕES / GALERIA
   ========================================================= */
.aplicacoes { background: var(--bg-claro); }

.aplicacoes__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 210px;
  gap: 18px;
}
.aplicacoes__item {
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.aplicacoes__item img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.5s ease;
}
.aplicacoes__item:hover img { transform: scale(1.08); }

.aplicacoes__item--big { grid-column: span 2; grid-row: span 2; }

.aplicacoes__caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 18px 16px 14px;
  background: linear-gradient(0deg, rgba(6,26,7,0.85), transparent);
  color: var(--branco);
  font-size: 14px;
  font-weight: 600;
}

/* =========================================================
   POR QUE A GRAMA EXPRESS
   ========================================================= */
.porque { background: var(--bg-secao); }
.porque__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.porque__item {
  background: var(--branco);
  border-radius: var(--radius-sm);
  padding: 28px 22px;
  box-shadow: var(--shadow);
  text-align: center;
}
.porque__item .num {
  font-size: 34px;
  font-weight: 800;
  color: var(--verde);
  margin-bottom: 6px;
}
.porque__item h4 { font-size: 14.5px; color: var(--cinza-escuro); font-weight: 600; }

/* =========================================================
   FAQ
   ========================================================= */
.faq { background: var(--bg-claro); }
.faq__list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }

.faq-item {
  background: var(--branco);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.faq-item__q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-weight: 600;
  font-size: 15.5px;
  color: var(--verde-mais-escuro);
  text-align: left;
}
.faq-item__q svg {
  width: 20px; height: 20px;
  flex-shrink: 0;
  transition: transform 0.3s ease;
  color: var(--verde);
}
.faq-item.is-open .faq-item__q svg { transform: rotate(45deg); }

.faq-item__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
}
.faq-item.is-open .faq-item__a {
  max-height: 260px;
  padding: 0 24px 22px;
}
.faq-item__a p { color: var(--texto-claro); font-size: 14.5px; }

/* =========================================================
   CTA FINAL
   ========================================================= */
.cta-final {
  background: linear-gradient(135deg, var(--verde-mais-escuro), var(--verde-escuro));
  text-align: center;
  position: relative;
}
.cta-final h2 {
  font-size: clamp(26px, 4vw, 40px);
  color: var(--branco);
  max-width: 720px;
  margin: 0 auto 18px;
}
.cta-final h2 em { color: var(--amarelo); font-style: normal; }
.cta-final p { color: rgba(255,255,255,0.82); max-width: 560px; margin: 0 auto 34px; font-size: 16px; }
.cta-final__actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  background: #08240a;
  color: rgba(255,255,255,0.75);
  padding: 70px 0 26px;
  position: relative;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1.2fr 1fr;
  gap: 40px;
  padding-bottom: 46px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer__logo img { height: 46px; margin-bottom: 18px; }
.footer__about p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,0.62); }

.footer h5 {
  color: var(--branco);
  font-size: 14.5px;
  margin-bottom: 18px;
  letter-spacing: 0.03em;
}
.footer ul { display: flex; flex-direction: column; gap: 12px; }
.footer ul a { font-size: 14px; color: rgba(255,255,255,0.65); transition: color 0.2s ease; }
.footer ul a:hover { color: var(--amarelo); }

.footer__contact li { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: rgba(255,255,255,0.7); }
.footer__contact i { font-size: 15px; flex-shrink: 0; margin-top: 3px; color: var(--amarelo); width: 17px; }

.footer__bottom {
  padding-top: 26px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}
.footer__socials { display: flex; gap: 12px; }
.footer__socials a {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  color: var(--branco);
  transition: background 0.2s ease;
}
.footer__socials a:hover { background: var(--verde); }
.footer__socials i { font-size: 16px; }

/* =========================================================
   WHATSAPP FLOAT
   ========================================================= */
.whatsapp-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  width: 60px; height: 60px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 28px rgba(0,0,0,0.3);
  color: var(--branco);
  transition: transform 0.25s ease;
}
.whatsapp-float:hover { transform: scale(1.08); }
.whatsapp-float i { font-size: 30px; line-height: 1; }

/* =========================================================
   REVEAL ON SCROLL
   ========================================================= */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1080px) {
  .beneficios__grid { grid-template-columns: repeat(2, 1fr); }
  .porque__grid { grid-template-columns: repeat(2, 1fr); }
  .aplicacoes__grid { grid-template-columns: repeat(3, 1fr); grid-auto-rows: 190px; }
}

@media (max-width: 900px) {
  .nav, .header__actions .btn--nav { display: none; }
  .nav-toggle { display: flex; }

  .problema__grid { grid-template-columns: 1fr; }
  .oque__grid {
    grid-template-columns: 1fr;
    grid-template-areas: "heading" "media" "text";
    gap: 0;
  }
  .oque__heading { margin-bottom: 24px; }
  .oque__media { margin-bottom: 28px; }
  .oque__media img, .problema__media img { height: 320px; }

  .processo__steps { grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .processo__steps::before { display: none; }

  .footer__grid { grid-template-columns: 1fr 1fr; }
  /* auto-sized rows + aspect-ratio instead of a fixed px track height:
     a fixed grid-auto-rows combined with a taller "big" card is what
     caused cards to overlap the row below on narrow screens. */
  .aplicacoes__grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: auto; }
  .aplicacoes__item { aspect-ratio: 4 / 3; height: auto; }
  .aplicacoes__item--big { grid-column: span 2; grid-row: span 1; aspect-ratio: 16 / 9; height: auto; }
}

@media (max-width: 640px) {
  .section { padding: 76px 0; }
  .beneficios__grid { grid-template-columns: 1fr; }
  .porque__grid { grid-template-columns: 1fr 1fr; }
  .aplicacoes__grid { grid-template-columns: 1fr 1fr; }
  .hero__scene-dot { display: none; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; text-align: center; }
  .comparador__box { aspect-ratio: 4/5; }

  .hero__badge { margin-bottom: 28px; }
  .hero__stages { height: 290px; }
  .hero__stage-text { gap: 20px; }
  .hero__cta { margin-top: 36px; }
  /* The taller mobile text block leaves no safe room above the fold for
     the bottom scroll cue — it would sit under or on top of the CTA
     buttons on short viewports, so it's dropped on mobile entirely. */
  .hero__progress { display: none; }

  /* Hero video: rotate 90deg on mobile so the top-down footage
     keeps full quality instead of being cropped/stretched */
  .hero__video-wrap.is-rotated .hero__video {
    width: 100vh;
    height: 100vw;
    max-width: none;
    transform: translate(-50%, -50%) rotate(90deg);
  }
}

@media (max-width: 420px) {
  .hero__stages { height: 310px; }
  .hero__stage-text { gap: 18px; }
}