/* ===================================================================
   Dr. Matheus Dutra — Landing Page
   Design system: minimalista, premium, alto contraste, mobile-first
   =================================================================== */

:root {
  /* Paleta */
  --white: #ffffff;
  --gray-50: #fafbfb;
  --gray-100: #f2f4f5;
  --gray-200: #e4e8ea;
  --gray-300: #cdd3d7;
  --gray-500: #7b868c;
  --gray-700: #445059;
  --dark: #0b1f30;         /* azul escuro profundo */
  --petrol: #0f3a45;       /* azul petróleo */
  --petrol-light: #16505e;
  --gold: #a9843f;         /* dourado discreto */
  --gold-light: #c9a96a;
  --text: #16212b;

  /* Tipografia */
  --font-base: -apple-system, "SF Pro Display", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* Espaçamento */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4.5rem;
  --space-7: 7rem;

  /* Layout */
  --container-w: 1180px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 10px rgba(11, 31, 48, 0.06);
  --shadow-md: 0 12px 32px rgba(11, 31, 48, 0.10);
  --shadow-lg: 0 24px 60px rgba(11, 31, 48, 0.16);
  --transition: 240ms cubic-bezier(.2, .7, .2, 1);
}

/* ===================== RESET ===================== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
h1, h2, h3, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

/* ===================== UTILITÁRIOS ===================== */
.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 var(--space-3);
}
.container-narrow { max-width: 820px; }

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--dark);
  color: var(--white);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  z-index: 999;
}
.skip-link:focus {
  left: var(--space-2);
  top: var(--space-2);
}

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 4px;
}

.section { padding: var(--space-6) 0; }
.section-alt { background: var(--gray-50); }

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--space-2);
}
.eyebrow-center { display: block; text-align: center; }

.section-title {
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--dark);
  margin-bottom: var(--space-3);
}
.section-title.center { text-align: center; margin-left: auto; margin-right: auto; max-width: 780px; }

.section-lead {
  color: var(--gray-700);
  font-size: 1.05rem;
  max-width: 680px;
  margin-bottom: var(--space-5);
}
.section-lead.center { text-align: center; margin-left: auto; margin-right: auto; }

.center-cta { text-align: center; margin-top: var(--space-5); }

.grid { display: grid; gap: var(--space-3); }
.grid-3 { grid-template-columns: 1fr; }
@media (min-width: 640px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }

/* ===================== BOTÕES ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  justify-content: center;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #1f8a4c, #17703d);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-secondary {
  background: var(--white);
  color: var(--dark);
  border: 1px solid var(--gray-300);
}
.btn-secondary:hover { border-color: var(--gold); color: var(--gold); }
.btn-large { padding: 1.05rem 2.2rem; font-size: 1.05rem; }
.btn-header { display: none; }
@media (min-width: 1024px) { .btn-header { display: inline-flex; } }

/* ===================== HEADER ===================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  border-bottom: 1px solid rgba(11, 31, 48, 0.06);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
}
.brand { display: flex; align-items: center; gap: 0.6rem; }
.brand-mark {
  display: block;
  height: 34px;
  width: auto;
  border-radius: 6px;
  background: var(--dark);
}
.brand-name { font-weight: 700; color: var(--dark); font-size: 1rem; }

.main-nav { display: none; }
@media (min-width: 1024px) {
  .main-nav { display: block; }
  .main-nav ul { display: flex; gap: var(--space-4); }
  .main-nav a {
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--gray-700);
    transition: color var(--transition);
  }
  .main-nav a:hover { color: var(--petrol); }
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  border: none;
  background: transparent;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
@media (min-width: 1024px) { .nav-toggle { display: none; } }

.main-nav.is-open {
  display: block;
  position: absolute;
  top: 100%;
  left: 0; right: 0;
  background: var(--white);
  box-shadow: var(--shadow-md);
  padding: var(--space-3);
}
.main-nav.is-open ul { display: flex; flex-direction: column; gap: var(--space-2); }
.main-nav.is-open a { font-weight: 600; color: var(--dark); font-size: 1rem; }

/* ===================== HERO ===================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  background: var(--dark);
}
.hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 140px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0) 0%, var(--white) 100%);
  z-index: 2;
  pointer-events: none;
}
.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(5, 15, 24, 0.97) 0%, rgba(6, 19, 29, 0.93) 26%, rgba(8, 24, 36, 0.72) 46%, rgba(9, 28, 40, 0.32) 66%, rgba(9, 28, 40, 0.12) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  box-sizing: border-box;
  padding: var(--space-6) var(--space-3) var(--space-3) clamp(3rem, 13vw, 11.5rem);
  max-width: min(640px, 90vw);
}
.hero .eyebrow { color: var(--gold-light); }
.hero-content h1 {
  color: var(--white);
  font-size: clamp(1.9rem, 4.4vw, 2.9rem);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.015em;
  margin-bottom: var(--space-3);
}
.hero-subtitle {
  color: rgba(255, 255, 255, 0.86);
  font-size: 1.05rem;
  max-width: 480px;
  margin-bottom: var(--space-4);
}
.hero-divider,
.hero-trust { display: none; }

.hero-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-4);
  box-sizing: border-box;
  margin-top: var(--space-4);
  padding: 0 var(--space-3) var(--space-6) clamp(3rem, 13vw, 11.5rem);
  max-width: min(640px, 90vw);
}
.hero-highlights li {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.9rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.hl-icon { display: none; }
.hl-check { color: var(--gold-light); }
.hl-text { display: flex; align-items: baseline; gap: 0.3rem; }
.hl-text small { display: none; }

/* ---- Tablet: keep the dark full-bleed treatment, tuned crop ---- */
@media (max-width: 900px) {
  .hero { min-height: 100vh; justify-content: flex-end; }
  .hero-media img { object-position: 74% center; }
  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(6, 18, 28, 0.35) 0%, rgba(6, 17, 26, 0.55) 38%, rgba(6, 16, 24, 0.93) 66%, rgba(5, 14, 22, 0.98) 100%);
  }
  .hero-content {
    max-width: 100%;
    padding: var(--space-4) var(--space-3) 0;
  }
  .hero-subtitle { max-width: 100%; }
  .hero-highlights {
    max-width: 100%;
    padding: 0 var(--space-3) var(--space-5);
    gap: var(--space-2) var(--space-3);
  }
}

/* ---- Phone: light layout with inset photo, matches approved reference ---- */
@media (max-width: 680px) {
  .hero {
    display: block;
    min-height: auto;
    background: var(--white);
    overflow: hidden;
  }
  .hero::after { display: none; }
  .hero-media {
    inset: auto;
    top: 0;
    right: -8%;
    left: auto;
    bottom: auto;
    width: 76%;
    height: 46vw;
    max-height: 300px;
    min-height: 220px;
    -webkit-mask-image: linear-gradient(to bottom, #000 55%, transparent 92%);
    mask-image: linear-gradient(to bottom, #000 55%, transparent 92%);
  }
  .hero-media img { object-position: 72% 18%; }
  .hero-overlay { display: none; }

  .hero-content {
    max-width: 100%;
    padding: var(--space-5) var(--space-3) 0;
  }
  .hero-headline { max-width: 60%; }
  .hero .eyebrow { color: var(--gold); }
  .hero-content h1 { color: var(--dark); font-size: 1.6rem; }
  .hero-subtitle { color: var(--gray-700); max-width: 100%; }

  .hero-divider {
    display: block;
    width: 64px;
    height: 3px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--gold), var(--gold-light));
    margin: var(--space-3) 0 var(--space-4);
  }
  .hero-trust {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: var(--space-2);
    color: var(--gray-700);
    font-size: 0.85rem;
  }

  .hero-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
    max-width: 100%;
    padding: 0;
    margin-top: var(--space-5);
    background: linear-gradient(160deg, var(--dark), var(--petrol));
  }
  .hero-highlights li {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.5rem;
    padding: var(--space-4) var(--space-3);
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  .hero-highlights li:nth-child(2n) { border-right: none; }
  .hero-highlights li:nth-child(n+3) { border-bottom: none; }
  .hl-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    color: var(--gold-light);
  }
  .hl-check { display: none; }
  .hl-text { flex-direction: column; align-items: flex-start; gap: 0.2rem; }
  .hl-text strong { color: var(--white); font-size: 0.9rem; font-weight: 600; }
  .hl-text small { display: block; color: rgba(255, 255, 255, 0.65); font-size: 0.76rem; line-height: 1.4; }
}

@media (max-width: 480px) {
  .hero-content h1 { font-size: 1.5rem; }
  .btn-large { width: 100%; }
}
@media (min-width: 481px) and (max-width: 900px) {
  .hero-content h1 { font-size: 1.7rem; }
  .hero-highlights li { font-size: 0.84rem; }
  .btn-large { width: 100%; }
}

/* ===================== CARDS — DIFERENCIAIS ===================== */
.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card .icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--petrol), var(--dark));
  color: var(--gold-light);
  margin-bottom: var(--space-3);
}
.card h3 { font-size: 1.08rem; color: var(--dark); margin-bottom: 0.5rem; }
.card p { color: var(--gray-700); font-size: 0.95rem; }

/* ===================== TREATMENT CARDS ===================== */
.treatment-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.treatment-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--gold-light); }
.treatment-card h3 { color: var(--dark); font-size: 1.15rem; }
.treatment-card p { color: var(--gray-700); font-size: 0.95rem; flex: 1; }
.card-link { color: var(--petrol); font-weight: 600; font-size: 0.92rem; transition: color var(--transition); }
.card-link:hover { color: var(--gold); }
.treatment-card-cta {
  background: linear-gradient(160deg, var(--dark), var(--petrol));
  border: none;
}
.treatment-card-cta h3, .treatment-card-cta p { color: rgba(255,255,255,0.92); }
.treatment-card-cta .btn-secondary { align-self: flex-start; margin-top: 0.4rem; }

/* ===================== SOBRE ===================== */
.about-grid {
  display: grid;
  gap: var(--space-5);
}
@media (min-width: 900px) {
  .about-grid { grid-template-columns: 1.4fr 1fr; align-items: start; }
}
.about-text p { color: var(--gray-700); margin-bottom: var(--space-3); }
.about-highlight { display: flex; flex-direction: column; gap: var(--space-3); }
.about-portrait {
  width: 150px;
  height: 150px;
  margin: 0 auto;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--gold-light);
  box-shadow: var(--shadow-md);
}
.about-portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 20%;
  display: block;
}
.quote-card {
  background: linear-gradient(160deg, var(--dark), var(--petrol));
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-4);
  box-shadow: var(--shadow-lg);
}
.quote-card p {
  font-size: 1.2rem;
  font-style: italic;
  line-height: 1.5;
  margin-bottom: var(--space-3);
}
.quote-card span { color: var(--gold-light); font-weight: 600; font-size: 0.9rem; }

/* ===================== FOTO — FORMAÇÃO ===================== */
.formacao-grid {
  display: grid;
  gap: var(--space-5);
  align-items: start;
}
@media (min-width: 900px) {
  .formacao-grid { grid-template-columns: 1fr 1.5fr; gap: var(--space-6); }
}
.formacao-photo { max-width: 380px; margin: 0 auto; }
@media (min-width: 900px) {
  .formacao-photo { margin: 0; position: sticky; top: var(--space-5); }
}
.formacao-photo-frame {
  position: relative;
  padding: 10px;
  background: linear-gradient(160deg, var(--dark), var(--petrol));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition), box-shadow var(--transition);
}
.formacao-photo-frame:hover {
  transform: translateY(-4px);
  box-shadow: 0 32px 70px rgba(11, 31, 48, 0.22);
}
.formacao-photo-frame::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid color-mix(in srgb, var(--gold-light) 45%, transparent);
  border-radius: calc(var(--radius-lg) - 6px);
  pointer-events: none;
}
.formacao-photo-frame img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: calc(var(--radius-lg) - 6px);
}
.formacao-photo-caption {
  margin-top: var(--space-2);
  text-align: center;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--dark);
}
.formacao-photo-caption span {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-500);
}

/* ===================== TIMELINE — FORMAÇÃO ===================== */
.timeline {
  position: relative;
  max-width: 720px;
  margin: 0 auto;
  padding-left: var(--space-4);
  border-left: 2px solid var(--gray-300);
}
.timeline-item { position: relative; padding-bottom: var(--space-5); }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-marker {
  position: absolute;
  left: calc(-1 * var(--space-4) - 6px);
  top: 4px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px var(--white);
}
.timeline-content h3 { color: var(--dark); font-size: 1.1rem; margin-bottom: 0.2rem; display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; }
.timeline-org { color: var(--petrol); font-weight: 600; font-size: 0.9rem; margin-bottom: 0.4rem; }
.timeline-content p:not(.timeline-org) { color: var(--gray-700); font-size: 0.95rem; }
.badge {
  display: inline-block;
  background: var(--gray-100);
  color: var(--gold);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--gray-300);
}

/* ===================== STEPS — ATENDIMENTO ===================== */
.steps {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .steps { grid-template-columns: repeat(5, 1fr); } }
.step {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--dark);
  color: var(--gold-light);
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.step h3 { font-size: 1rem; color: var(--dark); margin-bottom: 0.4rem; }
.step p { font-size: 0.88rem; color: var(--gray-700); }

/* ===================== DEPOIMENTOS ===================== */
.testimonial-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  box-shadow: var(--shadow-sm);
}
.stars { color: var(--gold); letter-spacing: 2px; margin-bottom: var(--space-2); font-size: 0.95rem; }
.testimonial-card p { color: var(--gray-700); margin-bottom: var(--space-2); font-size: 0.97rem; }
.testimonial-author { font-size: 0.85rem; color: var(--gray-500); font-weight: 600; }

/* ===================== FAQ ===================== */
.faq-list { display: flex; flex-direction: column; gap: 0.8rem; }
.faq-item {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
}
.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--dark);
  list-style: none;
  padding: 0.4rem 0;
  position: relative;
  padding-right: 2rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 0.4rem;
  font-size: 1.3rem;
  color: var(--gold);
  transition: transform var(--transition);
}
.faq-item[open] summary::after { content: "–"; }
.faq-item p { color: var(--gray-700); padding: 0.4rem 0 0.8rem; font-size: 0.95rem; }

/* ===================== CTA FINAL ===================== */
.cta-final {
  background: linear-gradient(160deg, var(--dark), var(--petrol) 70%);
  text-align: center;
}
.cta-final-inner { max-width: 680px; }
.cta-final h2 {
  color: var(--white);
  font-size: clamp(1.6rem, 3.4vw, 2.3rem);
  font-weight: 700;
  margin-bottom: var(--space-3);
}
.cta-final p { color: rgba(255,255,255,0.85); margin-bottom: var(--space-4); }
.cta-final-note { margin-top: var(--space-2); font-size: 0.85rem; color: rgba(255,255,255,0.6) !important; }

/* ===================== FOOTER ===================== */
.site-footer { background: var(--gray-50); border-top: 1px solid var(--gray-200); padding: var(--space-6) 0 var(--space-3); }
.footer-grid { display: grid; gap: var(--space-4); grid-template-columns: 1fr; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; } }
.footer-name { font-weight: 700; color: var(--dark); margin-top: var(--space-2); }
.site-footer p { color: var(--gray-700); font-size: 0.9rem; margin-top: 0.2rem; }
.site-footer p a { transition: color var(--transition); }
.site-footer p a:hover { color: var(--gold); }
.site-footer h3 { font-size: 0.9rem; color: var(--dark); margin-bottom: var(--space-2); }
.footer-links { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-links a { color: var(--gray-700); font-size: 0.9rem; transition: color var(--transition); }
.footer-links a:hover { color: var(--gold); }
.footer-bottom {
  margin-top: var(--space-5);
  padding-top: var(--space-3);
  border-top: 1px solid var(--gray-200);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}
.footer-bottom p { font-size: 0.8rem; color: var(--gray-500); margin: 0; }
.footer-credit {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  color: var(--gray-500);
  transition: color var(--transition);
}
.footer-credit:hover { color: var(--gold); }

/* ===================== BOTÃO FLUTUANTE WHATSAPP ===================== */
.whatsapp-float {
  position: fixed;
  bottom: var(--space-3);
  right: var(--space-3);
  z-index: 400;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: #1f8a4c;
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
}
.whatsapp-float.is-visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.whatsapp-float::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: #1f8a4c;
  opacity: 0.5;
  animation: pulse 2.4s ease-out infinite;
}
@keyframes pulse {
  0% { transform: scale(1); opacity: 0.5; }
  70% { transform: scale(1.7); opacity: 0; }
  100% { transform: scale(1.7); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .whatsapp-float::before { animation: none; display: none; }
}

/* ===================== ANIMAÇÕES DE ENTRADA ===================== */
.fade-in {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms ease, transform 600ms ease;
}
.fade-in.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .fade-in { opacity: 1; transform: none; transition: none; }
}