/* ============================================================
   HIDRO BIM — Landing Page
   Identidade visual: azul petróleo + azul neon (consistente com
   logo-hidrobim.png e a página de links já publicada da marca)
   ============================================================ */

@font-face {
  font-family: "Gotham";
  src: url("fonts/Gotham.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Gotham";
  src: url("fonts/Gotham-Bold.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}

:root {
  /* Fundos */
  --bg: #02050a;
  --bg-section: #050b16;
  --bg-section-alt: #030710;
  --bg-card: rgba(9, 18, 32, 0.72);
  --bg-card-hover: rgba(12, 24, 42, 0.9);

  /* Azul petróleo + neon */
  --accent: #0a66ff;
  --accent-light: #65a3ff;
  --accent-dim: rgba(10, 102, 255, 0.12);
  --accent-glow: rgba(10, 102, 255, 0.28);
  --accent-border: rgba(138, 180, 255, 0.24);

  /* Texto */
  --text: #ffffff;
  --text-secondary: #b8c4d8;
  --text-muted: #6f7f99;

  /* Utilidade */
  --border: rgba(138, 180, 255, 0.16);
  --border-hover: rgba(138, 180, 255, 0.34);
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --transition: 0.25s ease;
  --max-w: 1180px;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px var(--accent-glow);
  --font: "Gotham", Arial, Helvetica, sans-serif;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent-light); outline-offset: 3px; }

/* fundo técnico com grid sutil + glow radial, usado em todo o body */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 15% 0%, rgba(10, 102, 255, 0.16), transparent 45%),
    radial-gradient(circle at 85% 100%, rgba(10, 102, 255, 0.10), transparent 45%),
    var(--bg);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(138, 180, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(138, 180, 255, 0.045) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 100%);
}

.container { width: min(100% - 40px, var(--max-w)); margin-inline: auto; }
section { position: relative; padding: 96px 0; }
.section-alt { background: var(--bg-section-alt); }

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-light);
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.section-header { max-width: 720px; margin-bottom: 56px; }
.section-header.center { margin-inline: auto; text-align: center; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.18; letter-spacing: -0.01em; }
h2.section-title { font-size: clamp(1.7rem, 3.2vw, 2.5rem); margin-bottom: 14px; }
.section-subtitle { color: var(--text-secondary); font-size: 1.05rem; max-width: 620px; }
.section-header.center .section-subtitle { margin-inline: auto; }

/* ============================================================
   BOTÕES
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 30px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.98rem;
  border: 1px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #0043b8);
  color: #fff;
  box-shadow: 0 8px 28px var(--accent-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 36px var(--accent-glow); }
.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border-hover);
}
.btn-secondary:hover { border-color: var(--accent-light); background: var(--accent-dim); }
.btn-lg { padding: 18px 38px; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================================
   HEADER
   ============================================================ */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  transition: background var(--transition), padding var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}
#header.scrolled {
  background: rgba(2, 5, 10, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 12px 0;
  border-bottom-color: var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.15rem; }
.logo img { height: 34px; width: auto; }
.nav-desktop { display: flex; align-items: center; gap: 32px; }
.nav-desktop a {
  font-size: 0.94rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.nav-desktop a:hover { color: var(--text); }
.header-cta { display: flex; align-items: center; gap: 16px; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
  z-index: 110;
}
.hamburger span { width: 24px; height: 2px; background: var(--text); transition: var(--transition); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  inset: 0;
  background: rgba(2, 5, 10, 0.98);
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.35s ease, opacity 0.35s ease;
  z-index: 105;
}
.mobile-menu.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
.mobile-menu a { font-size: 1.3rem; font-weight: 700; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding: 150px 0 88px;
  min-height: 100vh;
  display: flex;
  align-items: center;
}
.hero-grid {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 52px;
}
.hero-copy {
  max-width: 860px;
  text-align: center;
  margin-inline: auto;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--accent-light);
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  padding: 8px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
}
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-light); box-shadow: 0 0 10px var(--accent-light); }
.hero-title { font-size: clamp(2.2rem, 4.4vw, 3.6rem); margin-bottom: 22px; }
.hero-title .highlight {
  background: linear-gradient(135deg, var(--accent-light), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-subtitle { font-size: 1.15rem; color: var(--text-secondary); max-width: 700px; margin: 0 auto 34px; }
.hero-ctas { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-bottom: 30px; }
.hero-trust { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.trust-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--bg-card);
}
.trust-chip svg { width: 15px; height: 15px; color: var(--accent-light); flex-shrink: 0; }

.hero-visual {
  position: relative;
  width: min(100%, 980px);
  border-radius: 0;
  border: none;
  background: transparent;
  padding: 0;
  box-shadow: none;
}
.hero-preview-title {
  max-width: 760px;
  margin: 0 auto 28px;
  text-align: center;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.02;
  font-weight: 800;
}
.hero-preview-title span {
  display: block;
  color: #ffbf00;
}
.hero-visual-frame {
  width: min(100%, 900px);
  margin-inline: auto;
  border-radius: 3px;
  border: 1px solid var(--border);
  background: #f8fafc;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: 12px 12px 0 rgba(255, 255, 255, 0.16), -6px -6px 0 rgba(255, 255, 255, 0.08), var(--shadow-card);
}
.hero-visual-frame img { width: 100%; height: 100%; object-fit: contain; padding: 40px; }
.hero-screenshot-track {
  width: 100%;
  height: 100%;
  display: flex;
  overflow: visible;
  animation: heroScreenshotAuto 100s ease-in-out infinite;
  will-change: transform;
}
.hero-visual-frame:hover .hero-screenshot-track { animation-play-state: paused; }
.hero-screenshot-slide {
  flex: 0 0 100%;
  height: 100%;
  background: #f8fafc;
  color: #172033;
}
.hero-screenshot-slide svg { color: var(--accent); }
.hero-screenshot-slide strong { color: #172033; }
.hero-screenshot-slide span { color: #5c6678; }
@keyframes heroScreenshotAuto {
  0%, 7% { transform: translateX(0); }
  10%, 17% { transform: translateX(-100%); }
  20%, 27% { transform: translateX(-200%); }
  30%, 37% { transform: translateX(-300%); }
  40%, 47% { transform: translateX(-400%); }
  50%, 57% { transform: translateX(-500%); }
  60%, 67% { transform: translateX(-600%); }
  70%, 77% { transform: translateX(-700%); }
  80%, 87% { transform: translateX(-800%); }
  90%, 97% { transform: translateX(-900%); }
  100% { transform: translateX(0); }
}
.hero-carousel-arrow {
  position: absolute;
  top: 50%;
  z-index: 2;
  transform: translateY(-50%);
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  color: #fff;
  font-size: 3rem;
  line-height: 1;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.8);
}
.hero-carousel-arrow-left { left: 18px; }
.hero-carousel-arrow-right { right: 18px; }
.hero-visual-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* placeholder de mockup (usado até chegarem prints reais do Revit) */
.mockup-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
  padding: 32px;
  color: var(--text-muted);
}
.mockup-placeholder svg { width: 48px; height: 48px; color: var(--accent-light); opacity: 0.7; }
.mockup-placeholder strong { color: var(--text-secondary); font-size: 0.92rem; }
.mockup-placeholder span { font-size: 0.8rem; }

/* ============================================================
   DOR
   ============================================================ */
.pain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 40px;
}
.pain-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: border-color var(--transition), transform var(--transition), background var(--transition);
}
.pain-card:hover { border-color: var(--border-hover); transform: translateY(-3px); background: var(--bg-card-hover); }
.pain-icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--accent-dim);
  color: var(--accent-light);
  margin-bottom: 16px;
}
.pain-icon svg { width: 22px; height: 22px; }
.pain-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.pain-card p { color: var(--text-secondary); font-size: 0.92rem; }
.pain-transition {
  text-align: center;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  max-width: 680px;
  margin-inline: auto;
}

/* ============================================================
   APRESENTAÇÃO DO PRODUTO
   ============================================================ */
.product-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.product-list { display: flex; flex-direction: column; gap: 14px; }
.product-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.98rem;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
}
.product-list li svg { width: 18px; height: 18px; color: var(--accent-light); flex-shrink: 0; }

/* ============================================================
   BENEFÍCIOS
   ============================================================ */
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.benefit-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: border-color var(--transition), transform var(--transition), background var(--transition);
}
.benefit-card:hover { border-color: var(--border-hover); transform: translateY(-3px); background: var(--bg-card-hover); }
.benefit-num {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-light);
  margin-bottom: 12px;
}
.benefit-card h3 { font-size: 1rem; margin-bottom: 8px; }
.benefit-card p { color: var(--text-secondary); font-size: 0.9rem; }

/* ============================================================
   RECURSOS DO TEMPLATE
   ============================================================ */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 28px;
}
.resource-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color var(--transition), background var(--transition);
}
.resource-item:hover { border-color: var(--border-hover); background: var(--bg-card-hover); }
.resource-item svg { width: 24px; height: 24px; color: var(--accent-light); flex-shrink: 0; margin-top: 2px; }
.resource-item h3 { font-size: 0.98rem; margin-bottom: 4px; }
.resource-item p { font-size: 0.86rem; color: var(--text-secondary); }
.resource-note { text-align: center; color: var(--text-muted); font-size: 0.85rem; max-width: 640px; margin-inline: auto; }

/* ============================================================
   DEMONSTRAÇÃO VISUAL
   ============================================================ */
.demo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.demo-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.demo-frame {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-sm);
  background: var(--bg-section-alt);
  border: 1px dashed var(--border-hover);
  margin-bottom: 14px;
}
.demo-frame.mockup-placeholder svg { width: 34px; height: 34px; }
.demo-frame.mockup-placeholder span { font-size: 0.78rem; }
.demo-card h3 { font-size: 0.96rem; text-align: center; }

/* ============================================================
   DEPOIMENTOS
   ============================================================ */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  border: 1px solid var(--border);
  background: var(--bg-card);
}
.testimonial-card:nth-child(1) {
  background: linear-gradient(160deg, rgba(10, 102, 255, 0.14), rgba(5, 11, 22, 0.6));
  border-color: var(--accent-border);
}
.testimonial-profile { display: flex; align-items: center; gap: 16px; margin-bottom: 22px; }
.testimonial-photo {
  width: 72px;
  height: 72px;
  flex: 0 0 72px;
  border-radius: 50%;
  border: 1px solid var(--accent-border);
  padding: 0;
  background: rgba(255, 255, 255, 0.04);
  overflow: hidden;
}
.testimonial-photo img { width: 100%; height: 100%; object-fit: cover; }
.testimonial-photo svg { width: 28px; height: 28px; }
.testimonial-card h3 { font-size: 1.05rem; margin-bottom: 4px; }
.testimonial-profile span { display: block; font-size: 0.82rem; color: var(--text-muted); }
.testimonial-card p { color: var(--text-secondary); font-size: 0.95rem; }

/* ============================================================
   AUTORIDADE
   ============================================================ */
.authority-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
  align-items: center;
}
.authority-frame {
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(10, 102, 255, 0.12), rgba(5, 11, 22, 0.6));
  border: 1px solid var(--border);
}

/* ============================================================
   OFERTA
   ============================================================ */
.offer-box {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
}
.offer-list { display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }
.offer-list li { display: flex; align-items: center; gap: 10px; font-size: 0.94rem; color: var(--text-secondary); }
.offer-list li svg { width: 17px; height: 17px; color: var(--accent-light); flex-shrink: 0; }
.offer-card {
  background: linear-gradient(160deg, rgba(10, 102, 255, 0.16), rgba(5, 11, 22, 0.7));
  border: 1px solid var(--accent-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  text-align: center;
  box-shadow: var(--shadow-glow);
}
.offer-card-label { display: block; font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 14px; }
.offer-price { margin-bottom: 22px; }
.offer-price-kicker {
  display: block;
  color: var(--text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}
.offer-price-value { display: block; font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 800; line-height: 1; }
.offer-price-note { display: block; font-size: 1rem; color: var(--text-secondary); margin-top: 10px; }
.offer-security { display: flex; align-items: center; justify-content: center; gap: 8px; font-size: 0.8rem; color: var(--text-muted); margin-top: 16px; }
.offer-security svg { width: 15px; height: 15px; }

/* ============================================================
   GARANTIA
   ============================================================ */
.guarantee-box {
  max-width: 760px;
  margin-inline: auto;
  text-align: center;
  background: linear-gradient(160deg, rgba(10, 102, 255, 0.12), rgba(5, 11, 22, 0.78));
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  box-shadow: var(--shadow-card);
}
.guarantee-icon { width: 56px; height: 56px; margin-inline: auto 16px; color: var(--accent-light); }
.guarantee-icon svg { width: 100%; height: 100%; }
.guarantee-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-light);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}
.guarantee-box h2 { font-size: 1.5rem; margin-bottom: 14px; }
.guarantee-box p { color: var(--text-secondary); }

/* ============================================================
   FAQ
   ============================================================ */
.faq-list { max-width: 780px; margin-inline: auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: none;
  border: none;
  color: var(--text);
  text-align: left;
  font-size: 0.98rem;
  font-weight: 600;
  padding: 20px 24px;
}
.faq-icon { font-size: 1.3rem; color: var(--accent-light); transition: transform var(--transition); flex-shrink: 0; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-item.open .faq-answer { max-height: 400px; }
.faq-answer p { padding: 0 24px 20px; color: var(--text-secondary); font-size: 0.92rem; }

/* ============================================================
   CTA FINAL
   ============================================================ */
#cta-final { padding: 110px 0; }
.cta-final-box { max-width: 680px; margin-inline: auto; text-align: center; }
.cta-final-box h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); margin-bottom: 16px; }
.cta-final-box p { color: var(--text-secondary); font-size: 1.05rem; margin-bottom: 32px; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { border-top: 1px solid var(--border); padding: 48px 0 24px; background: var(--bg-section-alt); }
.footer-inner { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; flex-wrap: wrap; margin-bottom: 28px; }
.footer-brand img { height: 30px; margin-bottom: 10px; }
.footer-brand p { color: var(--text-muted); font-size: 0.88rem; max-width: 260px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 20px; }
.footer-links a { font-size: 0.88rem; color: var(--text-secondary); transition: color var(--transition); }
.footer-links a:hover { color: var(--text); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 20px; }
.footer-bottom p { font-size: 0.8rem; color: var(--text-muted); text-align: center; }

/* ============================================================
   STICKY CTA MOBILE
   ============================================================ */
.sticky-cta {
  display: none;
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 90;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  background: rgba(2, 5, 10, 0.92);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
}

/* ============================================================
   RESPONSIVO — base (detalhado nas próximas partes/QA final)
   ============================================================ */
@media (max-width: 960px) {
  .nav-desktop, .header-cta .btn-secondary { display: none; }
  .hamburger { display: flex; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero { padding: 140px 0 70px; text-align: left; }
  .pain-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid { grid-template-columns: 1fr; gap: 36px; }
  .benefit-grid { grid-template-columns: repeat(2, 1fr); }
  .resource-grid, .demo-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: 1fr; }
  .authority-grid { grid-template-columns: 1fr; gap: 32px; }
  .authority-frame { max-width: 320px; margin-inline: auto; }
  .offer-box { grid-template-columns: 1fr; padding: 36px 28px; }
  .sticky-cta { display: block; }
  body { padding-bottom: 78px; }
}
@media (max-width: 560px) {
  section { padding: 72px 0; }
  .hero-ctas .btn { width: 100%; }
  .hero-visual { padding: 18px; }
  .hero-visual-frame { aspect-ratio: 4 / 3; }
  .pain-grid, .benefit-grid, .resource-grid, .demo-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; }
}