:root {
  --green-dark: #1F2A1C;
  --green-mid: #303F2B;
  --green-soft: #AAB8A0;
  --cream: #F6F4EF;
  --cream-alt: #ECEBE5;
  --ink: #16170F;
  --ink-soft: rgba(22, 23, 15, .72);
  --on-dark: rgba(255, 255, 255, .8);
  --rule: rgba(22, 23, 15, .14);
  --rule-dark: rgba(255, 255, 255, .16);
  --max-width: 1120px;
  --narrow-width: 780px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: 'Inter Tight', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 18px;
  line-height: 1.625;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: 'Instrument Serif', Georgia, serif;
  font-weight: 400;
  color: var(--green-dark);
  line-height: 1.05;
  margin: 0 0 1.25rem;
  letter-spacing: -.01em;
}

h1 { font-size: clamp(2.4rem, 6vw, 4rem); }
h2 { font-size: clamp(2rem, 4.6vw, 3rem); margin-bottom: 1.5rem; }
h3 { font-size: 1.35rem; margin-bottom: .5rem; }

em { font-style: italic; }

p { margin: 0 0 1.15rem; }

a { color: inherit; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.container.narrow { max-width: var(--narrow-width); }
.narrow-text { max-width: var(--narrow-width); margin-left: auto; margin-right: auto; }
.center { text-align: center; }

/* ===== LABEL MONO (eyebrow) ===== */
.eyebrow {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--green-mid);
  display: block;
  margin-bottom: 1.75rem;
}

.on-dark .eyebrow,
.hero .eyebrow,
.final-cta .eyebrow { color: var(--green-soft); }

/* ===== HEADER ===== */
.site-header {
  background: var(--green-dark);
  border-bottom: 1px solid var(--rule-dark);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-block: 20px;
}

.logo {
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: clamp(1.1rem, 2.4vw, 1.35rem);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--cream);
  text-decoration: none;
}

/* ===== BLOCOS CLARO / ESCURO ===== */
.on-dark {
  background: var(--green-dark);
  color: var(--on-dark);
}

.on-dark h1, .on-dark h2, .on-dark h3 { color: #fff; }

.section { padding: clamp(64px, 9vw, 120px) 0; }
.section-alt { background: var(--cream-alt); }

/* ===== HERO ===== */
.hero {
  background: var(--green-dark);
  background-image: linear-gradient(100deg, rgba(31,42,28,.96) 30%, rgba(31,42,28,.55) 100%), url('../img/hero-doctor.jpg');
  background-size: cover;
  background-position: center right;
  color: var(--on-dark);
  padding: clamp(72px, 10vw, 140px) 0 clamp(56px, 7vw, 88px);
}

.hero h1 { color: #fff; }
.hero h1 em { color: var(--green-soft); }

.hero-inner { max-width: 720px; }

.lead {
  font-size: 1.125rem;
  color: var(--on-dark);
  max-width: 40em;
}

.lead-strong {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--green-dark);
}

.on-dark .lead-strong,
.hero .lead-strong,
.final-cta .lead-strong { color: #fff; }

/* ===== BOTÕES ===== */
.cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 28px;
  margin-top: 2.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  border: 1px solid transparent;
  border-radius: 0;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease;
}

.btn::after { content: "↗"; font-size: 13px; }

.btn-primary {
  background: var(--cream);
  color: var(--green-mid);
}

.btn-primary:hover { background: #fff; }

.on-dark .btn-primary, .final-cta .btn-primary { background: var(--cream); color: var(--green-mid); }

.btn-solid {
  background: var(--green-dark);
  color: var(--cream);
}

.btn-solid:hover { background: var(--green-mid); }

.btn-link {
  padding: 0;
  background: none;
  color: inherit;
  border: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 3px;
}

.btn-link::after { content: ""; }

/* ===== LISTA DE CREDENCIAIS (hero) ===== */
.hero-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px 40px;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--rule-dark);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  letter-spacing: .6px;
  color: var(--on-dark);
}

.hero-facts li { list-style: none; }
.hero-facts { padding-left: 0; margin-bottom: 0; }
.hero-facts li::before { content: "✓ "; color: var(--green-soft); }

/* ===== VÍDEO ===== */
.video-section { background: var(--green-dark); padding-bottom: clamp(64px, 9vw, 120px); }

.video-wrapper {
  max-width: 940px;
  margin: 0 auto;
  background: #000;
  overflow: hidden;
  min-height: 240px;
}

/* ===== CITAÇÕES ===== */
blockquote {
  margin: 2rem 0;
  padding: 0 0 0 28px;
  border-left: 1px solid var(--rule);
  font-family: 'Instrument Serif', Georgia, serif;
  font-style: italic;
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.2;
  color: var(--green-dark);
}

.on-dark blockquote { border-left-color: var(--rule-dark); color: #fff; }

blockquote.highlight { color: var(--green-mid); }

/* ===== PILARES ===== */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1px;
  margin-top: 3.5rem;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.pillar-card {
  background: var(--cream);
  padding: 40px;
}

.pillar-card p { margin: 0; color: var(--ink-soft); font-size: 1rem; }

.pillar-index {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  letter-spacing: 1.2px;
  color: var(--green-soft);
  display: block;
  margin-bottom: 1rem;
}

/* ===== FLUXOS ===== */
.flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 1.5rem 0 3rem;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
}

.flow span { padding: 9px 16px; border: 1px solid var(--rule); }

.flow .arrow { padding: 0; border: none; color: var(--ink-soft); }

.flow-negative span:not(.arrow) { color: var(--ink-soft); text-decoration: line-through; }

.flow-positive span:not(.arrow) {
  background: var(--green-dark);
  border-color: var(--green-dark);
  color: var(--cream);
}

/* ===== MÉDICO ===== */
.doctor-credentials {
  margin-top: 2.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--rule);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--ink-soft);
}

.doctor-credentials strong { color: var(--green-dark); font-weight: 600; }

/* ===== FAQ ===== */
.faq { margin-top: 3rem; border-top: 1px solid var(--rule); }

.faq-item { border-bottom: 1px solid var(--rule); }

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 26px 48px 26px 0;
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: 1.35rem;
  line-height: 1.25;
  color: var(--green-dark);
  cursor: pointer;
  position: relative;
}

.faq-question::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 1.2rem;
  color: var(--green-mid);
}

.faq-question[aria-expanded="true"]::after { content: "−"; }

.faq-answer { display: none; padding: 0 48px 28px 0; color: var(--ink-soft); }
.faq-answer p { margin: 0; }
.faq-item.open .faq-answer { display: block; }

/* ===== CTA FINAL ===== */
.final-cta { background: var(--green-mid); color: var(--on-dark); }
.final-cta h2 { color: #fff; }
.final-cta .btn { margin-top: 1.5rem; }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--green-dark);
  color: var(--on-dark);
  padding: 56px 0 calc(56px + env(safe-area-inset-bottom, 0px));
}

.disclaimer {
  font-size: .95rem;
  color: var(--on-dark);
  padding-bottom: 1.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--rule-dark);
}

.footer-meta {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  margin: 0;
  color: var(--green-soft);
}

.footer-meta a { color: var(--green-soft); }

/* ===== CTA STICKY MOBILE ===== */
.mobile-sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));
  background: var(--green-dark);
  border-top: 1px solid var(--rule-dark);
  z-index: 60;
}

.mobile-sticky-cta .btn { display: flex; justify-content: center; width: 100%; }

@media (max-width: 760px) {
  body { font-size: 17px; }
  .mobile-sticky-cta { display: block; }
  .site-footer { padding-bottom: 104px; }
  .cta-group { gap: 20px; }
  .cta-group .btn-primary, .cta-group .btn-solid { width: 100%; justify-content: center; }
  .pillar-card { padding: 32px 26px; }
  .hero { background-position: center; }
}