/* ====== Tokens ====== */
:root {
  --green: #00CD00;
  --green-deep: #009900;
  --green-glow: #4DFF4D;
  --black: #0B0C0A;
  --charcoal: #15170F;
  --steel: #262920;
  --off-white: #F2F4EC;
  --white: #FFFFFF;
  --gray-text: #6B6F60;

  --font-display: 'Big Shoulders Display', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --section-pad: clamp(3rem, 8vw, 7rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--black);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3 { font-family: var(--font-display); margin: 0; line-height: 0.95; text-transform: uppercase; }

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

:focus-visible {
  outline: 3px solid var(--green);
  outline-offset: 3px;
}

/* ====== Draft banner ====== */
.draft-banner {
  background: var(--black);
  color: var(--green-glow);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 0.6rem 1rem;
  text-align: center;
}
.draft-banner strong { color: var(--white); }
.draft-banner button {
  background: none;
  border: 1px solid var(--green-glow);
  color: var(--green-glow);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  cursor: pointer;
  line-height: 1;
  flex-shrink: 0;
}
.draft-banner.is-hidden { display: none; }

/* ====== Header ====== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem clamp(1.25rem, 4vw, 3rem);
  padding-left: max(clamp(1.25rem, 4vw, 3rem), env(safe-area-inset-left));
  padding-right: max(clamp(1.25rem, 4vw, 3rem), env(safe-area-inset-right));
  background: rgba(11, 12, 10, 0.96);
  transition: padding 0.3s ease, box-shadow .3s ease;
}
.site-header.is-scrolled {
  background: rgba(11, 12, 10, 0.95);
  backdrop-filter: blur(6px);
  padding-top: 0.7rem;
  padding-bottom: 0.7rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.brand {
  display: flex;
  align-items: center;
}
.brand-logo {
  height: 34px;
  width: auto;
  display: block;
}

.main-nav { display: flex; align-items: center; gap: clamp(1rem, 2vw, 2rem); }
.main-nav a {
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.85;
  transition: opacity .2s, color .2s;
}
.main-nav a:hover { opacity: 1; color: var(--green-glow); }
.main-nav a.nav-cta {
  background: var(--green);
  color: var(--black);
  padding: 0.6rem 1.2rem;
  border-radius: 2px;
  opacity: 1;
  font-weight: 600;
}
.main-nav a.nav-cta:hover { background: var(--green-glow); color: var(--black); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}
.nav-toggle span { width: 24px; height: 2px; background: var(--white); }

/* ====== Buttons ====== */
.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.9rem 1.8rem;
  border-radius: 2px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn { position: relative; display: inline-flex; align-items: center; gap: 0.6rem; }
.btn::after { content: '\2197'; transition: transform .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn:hover::after { transform: translate(2px, -2px); }
.btn-primary { background: var(--green); color: var(--black); box-shadow: 0 0 0 rgba(0,205,0,0); }
.btn-primary:hover { background: var(--green-glow); box-shadow: 0 8px 24px rgba(0,205,0,0.35); }
.btn-outline { background: transparent; border-color: var(--green); color: var(--black); }
.btn-outline:hover { background: var(--green); color: var(--black); box-shadow: 0 8px 24px rgba(0,205,0,0.25); }
.btn-block { width: 100%; text-align: center; border: none; justify-content: center; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green-glow);
  margin: 0 0 1rem;
}
.eyebrow-dark { color: var(--green-deep); }
.eyebrow.center { text-align: center; }

/* ====== Hero ====== */
.hero {
  position: relative;
  background: radial-gradient(ellipse at 70% 20%, #0E2A0E 0%, var(--black) 60%);
  color: var(--white);
  overflow: hidden;
  padding: clamp(4rem, 10vw, 6rem) clamp(1.25rem, 4vw, 3rem) clamp(3rem, 6vw, 4rem);
}

/* Vídeo de fundo via iframe do YouTube — sem arquivo local, stream da CDN */
.hero-video-wrap {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}
.hero-video-wrap iframe {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  /* Vídeo 16:9 landscape cobrindo o hero:
     — largura: 100vw garante cobertura total na horizontal
     — altura: 56.25vw (= 100vw × 9/16) mantém proporção
     — min-height/min-width garantem cobertura em viewports altos */
  width: 100vw;
  height: 56.25vw;
  min-height: 100%;
  min-width: 177.78vh;
  border: none;
}
.hero-video-overlay {
  position: absolute;
  inset: 0;
  /* Escurece o vídeo para o texto ficar legível */
  background: rgba(11, 12, 10, 0.68);
}
@media (prefers-reduced-motion: reduce) {
  .hero-video-wrap { display: none; }
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,205,0,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,205,0,0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 65% 30%, black 10%, transparent 70%);
  z-index: 1;
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 900;
  letter-spacing: 0.01em;
}
.title-line { display: block; }
.text-accent { color: var(--green); text-shadow: 0 0 30px rgba(0,205,0,0.5); }

/* ====== GSAP word-reveal titles ====== */
.animated-title-container {
  display: flex;
  flex-wrap: wrap;
  perspective: 400px;
  row-gap: 0.1em;
  column-gap: 0.28em;
}
.animated-title-container > span { display: inline-block; }
.hero-sub {
  font-size: 1.05rem;
  color: #C9CFC2;
  max-width: 46ch;
  margin: 1.5rem 0 2rem;
  line-height: 1.6;
}

/* Form no hero */
.hero-form-wrap {
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(0, 205, 0, 0.2);
  border-radius: 12px;
  padding: 2rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  align-self: center;
}
.hero-form-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green-glow);
  margin: 0 0 1.25rem;
}
.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.field-group label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
  user-select: none;
}

.lead-form--dark input,
.lead-form--dark select {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.15);
  color: var(--white);
}
.lead-form--dark input::placeholder { color: rgba(255, 255, 255, 0.4); }
.lead-form--dark select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2300CD00' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}
.lead-form--dark select option {
  background: var(--black);
  color: var(--white);
}
.lead-form--dark select option:disabled { color: rgba(255,255,255,0.4); }
.lead-form--dark input:focus,
.lead-form--dark select:focus {
  outline: 2px solid var(--green);
  border-color: var(--green);
  background: rgba(0, 205, 0, 0.06);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2300CD00' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
}
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* ====== Trust marquee ====== */
.marquee {
  background: var(--charcoal);
  overflow: hidden;
  padding: 0.85rem 0;
  border-top: 1px solid var(--steel);
  border-bottom: 1px solid var(--steel);
}
.marquee-track {
  display: flex;
  width: max-content;
  gap: 0.75rem;
  animation: marquee 28s linear infinite;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--green-glow);
  white-space: nowrap;
}
.marquee-track .dot { color: var(--steel); }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ====== Offer stripe ====== */
.offer-stripe {
  position: relative;
  background: var(--green);
  color: var(--black);
  padding: clamp(1rem, 2.5vw, 1.6rem) clamp(1.25rem, 4vw, 3rem);
  overflow: hidden;
  display: flex;
  justify-content: flex-end;
}
.offer-stripe-pattern {
  position: absolute;
  inset: 0;
  left: -5%;
  width: 55%;
  background-image: repeating-linear-gradient(
    115deg,
    var(--black) 0, var(--black) 28px,
    transparent 28px, transparent 56px
  );
  opacity: 0.9;
  mask-image: linear-gradient(90deg, black 60%, transparent 100%);
}
.offer-stripe-content {
  position: relative;
  z-index: 1;
  text-align: right;
}
.offer-stripe-content h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
.offer-stripe-content p { margin: 0.3rem 0 1rem; font-size: 1.05rem; }
.offer-stripe-content em { font-style: normal; font-weight: 700; }
.offer-cta {
  border-color: var(--black);
  color: var(--black);
  display: inline-flex;
}
.offer-cta:hover { background: var(--black); color: var(--green); }

/* ====== Stats bar ====== */
.stats-bar {
  background: radial-gradient(ellipse at 50% 0%, #0E2A0E 0%, var(--black) 65%);
  color: var(--white);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  text-align: center;
  align-items: center;
  padding: clamp(1rem, 2vw, 1.5rem) 1.5rem;
  row-gap: 0.3rem;
}
/* Linha 1 — valores brancos, todos na mesma altura */
.stat-headline {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.05em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--white);
  text-transform: uppercase;
}
.stat-number, .stat-plus {
  font-family: inherit;
  font-weight: inherit;
  font-size: inherit;
  color: inherit;
}
/* Linha 2 — labels verdes, todos na mesma altura */
.stat-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--green-glow);
}

/* ====== Engenharia ====== */
.engenharia {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  padding: var(--section-pad) clamp(1.25rem, 4vw, 3rem);
  max-width: 1280px;
  margin: 0 auto;
  overflow: hidden;
}
.blueprint-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;
}
.engenharia-text, .engenharia-visual { position: relative; z-index: 1; }
.engenharia h2 { font-size: clamp(2rem, 4.5vw, 3.2rem); margin-bottom: 2rem; }
.diff-list { display: flex; flex-direction: column; gap: 1.5rem; }
.diff-list li { border-left: 3px solid var(--green); padding-left: 1.2rem; }
.diff-list h3 {
  font-family: var(--font-body);
  text-transform: none;
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 0.3rem;
}
.diff-list p { margin: 0; color: var(--gray-text); line-height: 1.5; }

.engenharia-visual { display: flex; justify-content: center; align-items: center; }
.engenharia-product-img {
  width: 100%;
  max-width: 420px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 16px 40px rgba(0, 0, 0, 0.18));
  animation: float 5s ease-in-out infinite;
}

/* Hero — dois CTAs lado a lado */
.hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn-outline-white {
  background: transparent;
  border: 2px solid rgba(255,255,255,0.5);
  color: var(--white);
}
.btn-outline-white:hover { border-color: var(--white); background: rgba(255,255,255,0.08); }

/* ====== Arsenal ====== */
.arsenal {
  background: var(--off-white);
  padding: var(--section-pad) clamp(1.25rem, 4vw, 3rem);
  text-align: center;
}
.arsenal-title { font-size: clamp(2rem, 5vw, 3.2rem); margin-bottom: 0.75rem; }
.arsenal-note {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gray-text);
  max-width: 60ch;
  margin: 0 auto 3rem;
}
.product-spotlight {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  max-width: 1000px;
  margin: 0 auto;
  text-align: left;
}

/* 3D tilt card — segue o mouse (porta da animação do site de referência) */
.card-3d-container { perspective: 1200px; }
.card-3d-interactive {
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
  transition: transform .1s linear;
  position: relative;
  /* overflow: hidden removido — conflita com transform-style: preserve-3d no iOS Safari */
  background-color: var(--black);
  aspect-ratio: 1;
  border-radius: 1.5rem;
  border: 1px solid var(--steel);
  display: flex;
  align-items: center;
  justify-content: center;
}
.card-3d-interactive::before {
  content: '';
  position: absolute;
  top: var(--mouse-y, 50%);
  left: var(--mouse-x, 50%);
  transform: translate(-50%, -50%);
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(0,205,0,0.35) 0, rgba(0,205,0,0) 65%);
  opacity: var(--pseudo-opacity, 0);
  transition: opacity .4s ease-out;
  pointer-events: none;
  z-index: 1;
}
.card-3d-interactive > * { position: relative; z-index: 2; }

.mini-plate {
  width: 70%; aspect-ratio: 1; border-radius: 50%;
  background: linear-gradient(160deg, var(--steel), var(--black));
  border: 4px solid var(--green);
  position: relative;
}
.mini-plate::after {
  content: ''; position: absolute; inset: 38%; border-radius: 50%;
  background: var(--off-white); border: 2px solid var(--steel);
}

/* ====== Foto real do produto com flip 3D (perspectiva <-> topo) ====== */
.product-photo-flip {
  position: absolute;
  inset: 14px;
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
  transition: transform 1.1s cubic-bezier(.7, 0, .3, 1);
}
.product-photo-flip.is-flipped {
  -webkit-transform: rotateY(180deg);
  transform: rotateY(180deg);
}
.product-photo-face {
  position: absolute;
  inset: 0;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  border-radius: calc(1.5rem - 14px);
  overflow: hidden;
  background: var(--off-white);
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}
.product-photo-face img { width: 100%; height: 100%; object-fit: cover; display: block; }
.product-photo-back {
  -webkit-transform: rotateY(180deg);
  transform: rotateY(180deg);
}

.weight-tabs { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.weight-tab {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  background: transparent;
  border: 1px solid #D6D9CC;
  color: var(--gray-text);
  padding: 0.5rem 1rem;
  border-radius: 999px;
  cursor: pointer;
  transition: all .2s ease;
}
.weight-tab:hover { border-color: var(--green); color: var(--black); }
.weight-tab.is-active { background: var(--green); border-color: var(--green); color: var(--black); }

.product-spotlight-info h3 {
  font-family: var(--font-body); text-transform: none; font-weight: 700; font-size: 1.6rem;
  margin-bottom: 0.4rem;
}
.product-tagline { color: var(--gray-text); margin: 0 0 1.5rem; font-size: 1rem; }
.spec-list { display: flex; flex-direction: column; gap: 0.7rem; margin-bottom: 1.75rem; }
.spec-list li {
  display: flex; justify-content: space-between; gap: 1rem;
  border-bottom: 1px dashed #D6D9CC; padding-bottom: 0.6rem;
  font-family: var(--font-mono); font-size: 0.85rem;
}
.spec-list li span { color: var(--gray-text); text-transform: uppercase; letter-spacing: 0.04em; }
.spec-list li strong { color: var(--black); }

/* ====== Halteres ====== */
.halteres {
  background: var(--black);
  color: var(--white);
  padding: var(--section-pad) clamp(1.25rem, 4vw, 3rem);
  text-align: center;
}
.halteres-title { font-size: clamp(2rem, 5vw, 3.2rem); margin-bottom: 0.75rem; color: var(--white); }
.halteres-sub {
  font-size: 1rem;
  color: #8A9080;
  max-width: 56ch;
  margin: 0 auto 3rem;
  line-height: 1.6;
}

/* Grid das duas torres */
.torres-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto 4rem;
}
.torre-card {
  background: var(--charcoal);
  border: 1px solid var(--steel);
  border-radius: 1rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  text-align: left;
  transition: border-color .25s ease;
}
.torre-card:hover { border-color: var(--green-deep); }

.torre-img-wrap {
  background: #f5f5f0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  height: 400px;
  overflow: hidden;
}
.torre-img-wrap--dark { background: #f5f5f0; }
.torre-img-wrap img {
  max-height: 100%;
  width: auto;
  max-width: 100%;
  object-fit: contain;
}

.torre-info {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.torre-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--black);
  background: var(--green);
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 0.75rem;
  align-self: flex-start;
}
.torre-info h3 {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: clamp(1.6rem, 2.5vw, 2rem);
  font-weight: 900;
  color: var(--white);
  margin-bottom: 0.35rem;
  line-height: 1;
}
.torre-pesos {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--green-glow);
  letter-spacing: 0.04em;
  margin: 0 0 1.25rem;
}
.torre-info .spec-list { flex: 1; margin-bottom: 1.5rem; }
.torre-info .spec-list li { border-bottom-color: var(--steel); }
.torre-info .spec-list li span { color: #8A9080; }
.torre-info .spec-list li strong { color: var(--white); }

/* Detalhe do haltere individual (flip card) */
.haltere-detail {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  max-width: 1000px;
  margin: 0 auto;
  text-align: left;
}
.haltere-detail-info .eyebrow { color: var(--green-glow); }
.haltere-detail-info h3 {
  font-family: var(--font-body);
  text-transform: none;
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--white);
  margin-bottom: 0.4rem;
}
.haltere-detail-info .product-tagline { color: #8A9080; }
.haltere-detail-info .spec-list li { border-bottom-color: var(--steel); }
.haltere-detail-info .spec-list li span { color: #8A9080; }
.haltere-detail-info .spec-list li strong { color: var(--white); }
.haltere-detail-info .btn-outline { border-color: var(--green); color: var(--white); }
.haltere-detail-info .btn-outline:hover { background: var(--green); color: var(--black); }

@media (max-width: 900px) {
  .torres-grid { grid-template-columns: 1fr; }
  .haltere-detail {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .haltere-detail .card-3d-container { max-width: 320px; margin: 0 auto; }
  .haltere-detail-info .spec-list li { justify-content: space-between; }
  .haltere-detail-info .btn-outline { display: block; width: fit-content; margin: 0 auto; }
}

/* ====== Prova social ====== */
.prova {
  background: radial-gradient(ellipse at 50% 100%, #0E2A0E 0%, var(--black) 70%);
  color: var(--white);
  padding: var(--section-pad) 0;
  text-align: center;
  overflow: hidden;
}
.prova h2 {
  font-size: clamp(1.8rem, 4.5vw, 2.8rem);
  margin-bottom: 2rem;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
}

/* Hint de swipe — visível só mobile */
.prova-hint {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--green-glow);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  opacity: 0.7;
}

/* Carrossel */
.prova-grid {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  max-width: 800px;
  margin: 0 auto;
  justify-content: center;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
}

/* Dots de paginação — visíveis só mobile */
.prova-dots {
  display: none;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.25rem;
}
.prova-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--steel);
  transition: background .25s ease, transform .25s ease;
  cursor: pointer;
}
.prova-dot.is-active { background: var(--green); transform: scale(1.4); }

/* Card para vídeo Shorts (formato 9:16 — portrait) */
.prova-video-shorts {
  width: 100%;
  max-width: 300px;
  aspect-ratio: 9 / 16;
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--green-deep);
  flex-shrink: 0;
}
.prova-video-shorts iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* Card placeholder (futuro vídeo) */
.prova-card {
  aspect-ratio: 9 / 16;
  width: 100%;
  max-width: 320px;
  background: linear-gradient(160deg, #0E2A0E, var(--charcoal));
  border: 1px solid var(--green-deep);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  flex-shrink: 0;
}
.play-icon {
  width: 56px; height: 56px;
  border: 2px solid var(--green);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--green);
  font-size: 1.1rem;
}
.prova-label { font-family: var(--font-mono); font-size: 0.8rem; color: var(--gray-text); }


/* ====== CTA final ====== */
.cta-final {
  padding: var(--section-pad) clamp(1.25rem, 4vw, 3rem);
  text-align: center;
}
.cta-final h2 { font-size: clamp(2rem, 5vw, 3.2rem); }
.cta-final > p { color: var(--gray-text); max-width: 50ch; margin: 1rem auto 2rem; }
.cta-final-btn { font-size: 1rem; padding: 1rem 2.5rem; }

.lead-form {
  max-width: 460px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.lead-form input,
.lead-form select {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.9rem 1rem;
  border: 1px solid #D6D9CC;
  border-radius: 2px;
  background: var(--off-white);
  width: 100%;
}
.lead-form input:focus { outline: 2px solid var(--green); border-color: var(--green); }
.form-success {
  font-family: var(--font-mono);
  color: var(--green-glow);
  font-size: 0.9rem;
  margin-top: 1rem;
  text-align: center;
}

/* ====== Footer ====== */
.site-footer {
  background: var(--black);
  color: var(--white);
  padding: 2.5rem clamp(1.25rem, 4vw, 3rem);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.site-footer p { font-family: var(--font-mono); font-size: 0.8rem; color: var(--gray-text); margin: 0; }

/* ====== Reveal animation ====== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ====== Responsive ====== */

/* --- Tablet (≤ 900px) --- */
@media (max-width: 900px) {
  /* Hero — empilha copy em cima, form embaixo */
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .hero-copy { display: flex; flex-direction: column; align-items: flex-start; }

  /* Offer stripe */
  .offer-stripe { justify-content: center; }
  .offer-stripe-content { text-align: center; }

  /* Engenharia */
  .engenharia { grid-template-columns: 1fr; }
  .engenharia-visual { order: 1; }
  .engenharia-text { order: 2; }

  /* Anilha product spotlight */
  .product-spotlight { grid-template-columns: 1fr; text-align: center; }
  .card-3d-container { max-width: 300px; margin: 0 auto; width: 100%; }
  .weight-tabs { justify-content: center; }
  .spec-list li { justify-content: space-between; }

  /* Card 3D — altura explícita + flip desabilitado no mobile (iOS/Android Safari) */
  .card-3d-interactive {
    height: 300px;
    -webkit-transform-style: flat;
    transform-style: flat;
  }
  .product-photo-flip {
    -webkit-transform: none !important;
    transform: none !important;
    -webkit-transform-style: flat;
    transform-style: flat;
  }
  .product-photo-back { display: none; }
  .product-photo-face {
    -webkit-backface-visibility: visible;
    backface-visibility: visible;
  }

  /* Torres */
  .torre-img-wrap { height: 280px; }
}

/* --- Mobile portrait (≤ 640px) --- */
@media (max-width: 640px) {
  /* Hero — form ocupa largura total */
  .hero-form-wrap { padding: 1.5rem; }
}

/* --- Mobile (≤ 760px) --- */
@media (max-width: 760px) {
  /* Menu mobile drawer */
  .main-nav {
    position: fixed;
    top: 0; right: 0;
    height: 100dvh;
    width: min(78vw, 320px);
    background: var(--black);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 2.5rem 2rem;
    gap: 1.5rem;
    transform: translateX(100%);
    transition: transform .3s ease;
    z-index: 200;
    box-shadow: -8px 0 30px rgba(0,0,0,0.5);
  }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav a { font-size: 1.15rem; padding: 0.5rem 0; }
  .main-nav a.nav-cta { padding: 0.7rem 1.4rem; }
  .nav-toggle { display: flex; }

  /* Draft banner */
  .draft-banner { flex-direction: column; gap: 0.4rem; font-size: 0.75rem; }

  /* Stats — mantém 3 colunas, ajusta tamanho */
  .stat-headline { font-size: clamp(1.1rem, 5vw, 1.5rem); }
  .stat-label { font-size: 0.58rem; letter-spacing: 0.04em; }

  /* Prova — carrossel horizontal com scroll snap */
  .prova-hint { display: block; }
  .prova-dots { display: flex; }
  .prova-grid {
    flex-wrap: nowrap;
    overflow-x: scroll;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    gap: 1rem;
    padding: 0.5rem 1.5rem 1rem;
    max-width: 100%;
    justify-content: flex-start;
    /* esconde scrollbar visualmente */
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  .prova-grid::-webkit-scrollbar { display: none; }
  .prova-video-shorts {
    scroll-snap-align: center;
    flex-shrink: 0;
    width: 72vw;
    max-width: 280px;
  }

  /* Footer */
  .site-footer { flex-direction: column; text-align: center; align-items: center; }
}

/* --- Small mobile (≤ 480px) --- */
@media (max-width: 480px) {
  /* Padding geral de seções */
  :root { --section-pad: clamp(2.5rem, 8vw, 4rem); }

  /* Header */
  .site-header { padding: 0.85rem 1rem; }
  .brand-logo { height: 28px; }

  /* Hero */
  .hero { padding: 2.5rem 1rem 2rem; }
  .hero-visual { max-width: 260px; }
  .hero h1 { font-size: clamp(2rem, 8vw, 2.8rem); }
  .hero-sub { font-size: 0.95rem; margin: 1rem 0 1.5rem; }
  .hero-ctas {
    flex-direction: column;
    width: 100%;
    gap: 0.75rem;
  }
  .hero-ctas .btn { width: 100%; justify-content: center; }

  /* Offer stripe */
  .offer-stripe { padding: 2rem 1rem; }
  .offer-stripe-content h2 { font-size: clamp(1.6rem, 7vw, 2.2rem); }

  /* Stats */
  .stats-bar { padding: 1rem 0.5rem; column-gap: 0; }
  .stat-headline { font-size: clamp(1rem, 4.5vw, 1.3rem); }
  .stat-label { font-size: 0.55rem; }

  /* Engenharia */
  .engenharia { padding: var(--section-pad) 1rem; }

  /* Arsenal */
  .arsenal { padding: var(--section-pad) 1rem; }
  .arsenal-title { font-size: clamp(1.8rem, 7vw, 2.4rem); }
  .card-3d-container { max-width: 260px; }
  .card-3d-interactive { height: 260px; }
  .product-spotlight-info h3 { font-size: 1.35rem; }

  /* Torres de halteres */
  .halteres { padding: var(--section-pad) 1rem; }
  .halteres-title { font-size: clamp(1.8rem, 7vw, 2.4rem); }
  .halteres-sub { font-size: 0.95rem; margin-bottom: 2rem; }
  .torre-img-wrap { height: 220px; padding: 1rem; }
  .torre-info { padding: 1.25rem; }
  .torres-grid { gap: 1rem; }

  /* Haltere detail */
  .haltere-detail .card-3d-container { max-width: 240px; }

  /* Prova */
  .prova { padding: var(--section-pad) 1rem; }
  .prova h2 { font-size: clamp(1.5rem, 6vw, 2rem); }
  .prova-video-shorts { max-width: 240px; }

  /* Formulário hero */
  .hero-form-wrap { padding: 1.25rem; border-radius: 8px; }
  .lead-form--dark input,
  .lead-form--dark select { font-size: 16px; } /* evita zoom no iOS */
  .btn-block { font-size: 0.9rem; padding: 1rem; }

  /* CTA final */
  .cta-final { padding: var(--section-pad) 1rem; }
  .cta-final h2 { font-size: clamp(1.8rem, 7vw, 2.4rem); }
  .cta-final-btn { width: 100%; justify-content: center; }

  /* Footer */
  .site-footer { padding: 2rem 1rem; gap: 0.75rem; }
}