/* ============================================================
   DIETA CETOGÊNICA ESTRATÉGICA — Landing Page Styles
   Colors based on book cover: green #5BAD2F, deep purple #2D1B4E
   ============================================================ */

:root {
  --green:       #5BAD2F;
  --green-dark:  #4a9025;
  --green-light: #7bc94f;
  --purple:      #2D1B4E;
  --purple-dark: #1e1035;
  --purple-light:#3e2a65;
  --gold:        #C68B2C;
  --gold-light:  #e0a83a;
  --white:       #FFFFFF;
  --off-white:   #F8F6F1;
  --light-gray:  #F0ECE3;
  --border:      #DDD6C9;
  --text:        #1A1A1A;
  --text-muted:  #666660;
  --text-light:  #999990;

  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans:  'Inter', system-ui, -apple-system, sans-serif;

  --radius:     12px;
  --radius-sm:  8px;
  --radius-lg:  20px;
  --shadow:     0 4px 24px rgba(45,27,78,.10);
  --shadow-lg:  0 12px 48px rgba(45,27,78,.18);

  --transition: 0.25s ease;
  --container:  1140px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ── Container ── */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
}
.btn--primary {
  background: var(--green);
  color: var(--white);
  border-color: var(--green);
}
.btn--primary:hover {
  background: var(--green-dark);
  border-color: var(--green-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(91,173,47,.35);
}
.btn--outline {
  background: transparent;
  color: var(--purple);
  border-color: var(--purple);
}
.btn--outline:hover {
  background: var(--purple);
  color: var(--white);
  transform: translateY(-1px);
}
.btn--light {
  background: var(--white);
  color: var(--purple);
  border-color: var(--white);
}
.btn--light:hover {
  background: var(--off-white);
  transform: translateY(-1px);
}
.btn--nav {
  background: var(--green);
  color: var(--white) !important;
  border-color: var(--green);
  padding: 10px 20px;
  font-size: 14px;
}
.btn--nav:hover {
  background: var(--green-dark);
  border-color: var(--green-dark);
}
.btn--lg  { padding: 16px 36px; font-size: 16px; }
.btn--xl  { padding: 20px 48px; font-size: 18px; }
.btn--sm  { padding: 10px 18px; font-size: 14px; }

/* ── Section commons ── */
.section-header { text-align: center; margin-bottom: 56px; }
.section-eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--purple);
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-title--light { color: var(--white); }
.section-desc { font-size: 17px; color: var(--text-muted); max-width: 580px; margin: 0 auto; }
.section-desc--light { color: rgba(255,255,255,.75); }

/* ── Scroll reveal ── */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ============================================================
   LANGUAGE BANNER
   ============================================================ */
.lang-banner {
  background: var(--purple);
  color: var(--white);
  padding: 10px 24px;
  position: sticky;
  top: 0;
  z-index: 200;
}
.lang-banner__inner {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: var(--container);
  margin: 0 auto;
  font-size: 14px;
}
.lang-banner__btn {
  background: var(--green);
  color: var(--white);
  padding: 6px 16px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 13px;
  white-space: nowrap;
}
.lang-banner__close {
  margin-left: auto;
  background: none;
  border: none;
  color: rgba(255,255,255,.6);
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  padding: 4px;
}
.lang-banner__close:hover { color: var(--white); }

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.navbar.scrolled { box-shadow: 0 2px 20px rgba(45,27,78,.10); }
.navbar__inner {
  display: flex;
  align-items: center;
  height: 64px;
  gap: 32px;
}
.navbar__logo {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--purple);
  flex-shrink: 0;
}
.logo-k { color: var(--green); font-size: 24px; }
.logo-eto { color: var(--purple); }
.logo-amato { color: var(--text-muted); font-size: 14px; font-weight: 500; }

.navbar__links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
  margin-left: auto;
}
.navbar__links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
}
.navbar__links a:hover { color: var(--purple); }

.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-left: auto;
}
.navbar__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--purple);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  background: linear-gradient(135deg, var(--off-white) 0%, #ede9f5 100%);
  padding: 80px 0 100px;
  overflow: hidden;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 80px;
  align-items: center;
}
.hero__eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 16px;
}
.hero__title {
  font-family: var(--font-serif);
  line-height: 1.05;
  margin-bottom: 8px;
}
.title-dieta {
  display: block;
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  color: var(--green);
  font-weight: 700;
  letter-spacing: .08em;
}
.title-ceto {
  display: block;
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  color: var(--purple);
  font-weight: 900;
  letter-spacing: -.01em;
}
.title-estrategica {
  display: block;
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--green);
  font-style: italic;
  font-weight: 700;
}
.hero__subtitle {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 24px;
  letter-spacing: .02em;
  text-transform: uppercase;
}
.hero__desc {
  font-size: 17px;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 520px;
}
.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--purple);
  box-shadow: 0 2px 8px rgba(45,27,78,.07);
}
.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 18px;
}
.hero__guarantee {
  font-size: 13px;
  color: var(--text-muted);
}

/* ── 3D Book ── */
.hero__book { display: flex; align-items: center; justify-content: center; }
.book-3d {
  position: relative;
  width: 220px;
  height: 310px;
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateY(-15deg) rotateX(3deg);
  transition: transform .4s ease;
}
.book-3d:hover {
  transform: perspective(1000px) rotateY(-8deg) rotateX(2deg);
}
.book-3d__face {
  position: absolute;
  border-radius: 2px 8px 8px 2px;
  overflow: hidden;
}
.book-3d__front {
  width: 220px;
  height: 310px;
  right: 0;
  box-shadow: var(--shadow-lg);
}
.book-3d__front img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.book-3d__side {
  width: 28px;
  height: 310px;
  background: linear-gradient(to right, #2a1840, #3e2860);
  left: 0;
  top: 0;
  border-radius: 2px 0 0 2px;
  transform: rotateY(90deg) translateZ(-14px);
  transform-origin: left center;
}
.book-3d__shadow {
  position: absolute;
  bottom: -30px;
  left: 20px;
  right: -10px;
  height: 30px;
  background: radial-gradient(ellipse at center, rgba(45,27,78,.3) 0%, transparent 70%);
  filter: blur(8px);
}

/* ============================================================
   VOZES DAS PACIENTES
   ============================================================ */
.vozes {
  background: var(--purple);
  padding: 96px 0;
}
.vozes__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.voz-card {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  padding: 32px;
  color: var(--white);
  transition: background var(--transition), transform var(--transition);
}
.voz-card:hover {
  background: rgba(255,255,255,.12);
  transform: translateY(-3px);
}
.voz-card p {
  font-size: 15px;
  line-height: 1.75;
  color: rgba(255,255,255,.88);
  margin-bottom: 20px;
  font-style: italic;
  quotes: "\201C" "\201D";
}
.voz-card p::before { content: open-quote; color: var(--green); font-size: 1.5em; line-height: 0; vertical-align: -0.3em; }
.voz-card footer {
  font-size: 13px;
  font-weight: 600;
  color: var(--green-light);
  font-style: normal;
}

/* ============================================================
   SOBRE O LIVRO
   ============================================================ */
.livro {
  padding: 96px 0;
  background: var(--white);
}
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.feature-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
  border-color: var(--green);
}
.feature-card__icon {
  font-size: 36px;
  margin-bottom: 16px;
  display: block;
}
.feature-card h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--purple);
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ============================================================
   ESTATÍSTICAS
   ============================================================ */
.stats {
  background: linear-gradient(135deg, var(--purple-dark) 0%, var(--purple) 100%);
  padding: 80px 0;
}
.stats__bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 0;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  margin-bottom: 56px;
}
.stat-item { text-align: center; padding: 0 20px; }
.stat-number {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  color: var(--green-light);
  line-height: 1;
  margin-bottom: 12px;
}
.stat-label {
  display: block;
  font-size: 13px;
  color: rgba(255,255,255,.7);
  line-height: 1.5;
  max-width: 200px;
  margin: 0 auto;
}
.stat-divider {
  width: 1px;
  height: 80px;
  background: rgba(255,255,255,.2);
}
.stats__quote {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  border-left: 3px solid var(--green);
  padding-left: 32px;
  text-align: left;
}
.stats__quote p {
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  font-style: italic;
  color: rgba(255,255,255,.9);
  line-height: 1.65;
  margin-bottom: 16px;
}
.stats__quote footer {
  font-size: 14px;
  font-weight: 600;
  color: var(--green-light);
}

/* ============================================================
   DEPOIMENTOS
   ============================================================ */
.depoimentos {
  padding: 96px 0;
  background: var(--off-white);
}
.depoimentos__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.review-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.review-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.review-card__stars { color: #F5A623; font-size: 18px; letter-spacing: 2px; }
.review-card h4 {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--purple);
  line-height: 1.3;
}
.review-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
}
.review-card__author {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-light);
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

/* ============================================================
   QUIZ
   ============================================================ */
.quiz-section {
  padding: 96px 0;
  background: var(--white);
}
.quiz-wrapper {
  max-width: 680px;
  margin: 0 auto;
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
}
.quiz-question {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--purple);
  margin-bottom: 24px;
  font-weight: 700;
}
.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.quiz-opt {
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: all var(--transition);
  font-family: var(--font-sans);
}
.quiz-opt:hover {
  border-color: var(--green);
  background: rgba(91,173,47,.06);
  color: var(--purple);
  transform: translateX(4px);
}
.quiz-back {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  margin-top: 16px;
  padding: 8px 0;
  font-family: var(--font-sans);
  transition: color var(--transition);
}
.quiz-back:hover { color: var(--purple); }
.quiz-result { text-align: center; }
.quiz-result__icon { font-size: 56px; margin-bottom: 16px; }
.quiz-result h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--purple);
  margin-bottom: 12px;
}
.quiz-result p {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 28px;
  line-height: 1.6;
}
.quiz-restart {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
  margin-top: 16px;
  text-decoration: underline;
  font-family: var(--font-sans);
  display: block;
  margin: 16px auto 0;
}
.quiz-restart:hover { color: var(--purple); }

/* ============================================================
   COMPARATIVO DE PREÇOS
   ============================================================ */
.preco {
  padding: 96px 0;
  background: var(--off-white);
}
.preco__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}
.preco-card {
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  position: relative;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.preco-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.preco-card:first-child {
  border-color: var(--green);
  box-shadow: 0 0 0 4px rgba(91,173,47,.1);
}
.preco-card__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--green);
  color: var(--white);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 100px;
  white-space: nowrap;
}
.preco-card__icon { font-size: 36px; }
.preco-card h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--purple);
}
.preco-card__sub { font-size: 12px; color: var(--text-muted); }
.preco-card__price {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--purple);
  font-family: var(--font-serif);
}
.preco-card__price strong { font-size: 2.8rem; }
.intl-price { font-size: 1.4rem; }
.preco-card__features {
  list-style: none;
  text-align: left;
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.preco-card__features li { display: flex; gap: 8px; }
.preco-card .btn { width: 100%; }
.preco-card--intl .intl-btns { display: flex; gap: 8px; flex-direction: column; }

/* Comparison table */
.compare-table { overflow-x: auto; }
.compare-table table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  font-size: 14px;
}
.compare-table th, .compare-table td {
  padding: 14px 20px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.compare-table th {
  background: var(--purple);
  color: var(--white);
  font-weight: 600;
  font-size: 13px;
}
.compare-table th:first-child,
.compare-table td:first-child { text-align: left; font-weight: 500; }
.compare-table tbody tr:last-child td { border-bottom: none; font-weight: 700; color: var(--purple); }
.compare-table tbody tr:nth-child(even) td { background: var(--off-white); }
.compare-table tbody tr:hover td { background: rgba(91,173,47,.05); }

/* ============================================================
   IDIOMAS
   ============================================================ */
.idiomas {
  padding: 80px 0;
  background: var(--white);
}
.idiomas__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.idioma-card {
  background: var(--off-white);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 28px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.idioma-card:hover, .idioma-card--active {
  border-color: var(--green);
  background: rgba(91,173,47,.05);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.idioma-flag { font-size: 48px; }
.idioma-card h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--purple);
}
.idioma-card p { font-size: 13px; color: var(--text-muted); }
.idioma-cta {
  font-size: 13px;
  font-weight: 600;
  color: var(--green);
  margin-top: 4px;
}
.idioma-card--highlight {
  border-color: var(--gold) !important;
  background: rgba(198,139,44,.06) !important;
  box-shadow: 0 0 0 4px rgba(198,139,44,.15) !important;
}

/* ============================================================
   AUTOR
   ============================================================ */
.autor {
  padding: 96px 0;
  background: linear-gradient(135deg, var(--off-white) 0%, #ede9f5 100%);
}
.autor__inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 64px;
  align-items: start;
}
.autor__photo-wrap {
  flex-shrink: 0;
  width: 160px;
  height: 160px;
}
.autor__initials {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: var(--purple);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  border: 4px solid var(--green);
}
.autor__photo {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  border: 4px solid var(--green);
  box-shadow: var(--shadow-lg);
}
.autor__name {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 2.5vw, 1.8rem);
  color: var(--purple);
  margin-bottom: 16px;
}
.autor__credentials {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.credential {
  background: var(--green);
  color: var(--white);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 100px;
}
.autor__bio {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 14px;
}
.autor__bio a { color: var(--green); text-decoration: underline; }
.autor__links {
  display: flex;
  gap: 16px;
  margin-top: 8px;
}
.autor__link {
  font-size: 14px;
  font-weight: 600;
  color: var(--purple);
  padding: 8px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.autor__link:hover {
  border-color: var(--green);
  color: var(--green);
  background: rgba(91,173,47,.05);
}

/* ============================================================
   CTA FINAL
   ============================================================ */
.cta-final {
  padding: 96px 0;
  background: linear-gradient(135deg, var(--purple-dark) 0%, var(--purple) 60%, #3d2060 100%);
  text-align: center;
}
.cta-final__title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--white);
  margin-bottom: 16px;
}
.cta-final__desc {
  font-size: 17px;
  color: rgba(255,255,255,.75);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
}
.cta-final__btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.cta-final__trust {
  font-size: 13px;
  color: rgba(255,255,255,.5);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--purple-dark);
  padding: 40px 0;
  color: rgba(255,255,255,.6);
  text-align: center;
}
.footer__inner { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.footer__logo {
  font-family: var(--font-serif);
  font-size: 18px;
  color: rgba(255,255,255,.8);
  margin-bottom: 4px;
}
.footer__copy { font-size: 13px; }
.footer__disclaimer { font-size: 11px; max-width: 500px; line-height: 1.5; }
.footer__links { display: flex; gap: 20px; }
.footer__links a { font-size: 13px; color: var(--green-light); }
.footer__links a:hover { color: var(--white); }

/* ============================================================
   GEO BANNER
   ============================================================ */
.geo-banner {
  position: fixed;
  bottom: 24px;
  right: 24px;
  left: auto;
  background: var(--purple-dark);
  color: var(--white);
  border-radius: var(--radius);
  padding: 16px 20px;
  max-width: 380px;
  box-shadow: var(--shadow-lg);
  z-index: 300;
  border: 1px solid rgba(255,255,255,.1);
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
  animation: slideUp .4s ease;
}
.geo-banner__inner {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.geo-banner__btn {
  display: inline-block;
  background: var(--green);
  color: var(--white);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  text-align: center;
}
.geo-banner__close {
  position: absolute;
  top: 10px;
  right: 12px;
  background: none;
  border: none;
  color: rgba(255,255,255,.5);
  cursor: pointer;
  font-size: 14px;
}
.geo-banner__close:hover { color: var(--white); }

/* ============================================================
   SOCIAL PROOF TOAST
   ============================================================ */
.social-toast {
  position: fixed;
  bottom: 24px;
  left: 24px;
  background: var(--white);
  border: 1px solid var(--border);
  border-left: 4px solid var(--green);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  max-width: 300px;
  font-size: 13px;
  color: var(--text);
  box-shadow: var(--shadow-lg);
  z-index: 300;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  animation: slideUp .4s ease;
}
.social-toast__icon { font-size: 20px; flex-shrink: 0; margin-top: 2px; }

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: none; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .preco__grid { grid-template-columns: repeat(2, 1fr); }
  .vozes__grid { grid-template-columns: repeat(2, 1fr); }
  .depoimentos__grid { grid-template-columns: repeat(2, 1fr); }
  .features__grid { grid-template-columns: repeat(2, 1fr); }
  .stats__bar { grid-template-columns: 1fr; gap: 24px; }
  .stat-divider { width: 60px; height: 1px; margin: 0 auto; }
}

@media (max-width: 768px) {
  .navbar__links {
    display: none;
    position: fixed;
    top: 64px;
    left: 0; right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
  }
  .navbar__links.open { display: flex; }
  .navbar__hamburger { display: flex; }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }
  .hero__badges { justify-content: center; }
  .hero__ctas { justify-content: center; }
  .hero__book { order: -1; }
  .hero__desc { margin: 0 auto 28px; }

  .vozes__grid,
  .depoimentos__grid,
  .features__grid,
  .preco__grid,
  .idiomas__grid { grid-template-columns: 1fr; }

  .autor__inner {
    grid-template-columns: 1fr;
    gap: 32px;
    text-align: center;
  }
  .autor__photo-wrap { margin: 0 auto; }
  .autor__credentials { justify-content: center; }
  .autor__links { justify-content: center; }

  .quiz-wrapper { padding: 32px 24px; }
  .stats__bar { padding: 32px 24px; }
  .stats__quote { padding-left: 20px; }

  .cta-final__btns { flex-direction: column; align-items: center; }

  .geo-banner { left: 16px; right: 16px; bottom: 80px; max-width: none; }
  .social-toast { left: 12px; right: 12px; bottom: 80px; max-width: none; }
  /* Push footer content above sticky CTA */
  .footer { padding-bottom: 80px; }
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-section {
  padding: 96px 0;
  background: var(--white);
}
.faq__list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:last-child { border-bottom: none; }
.faq-item__q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 28px;
  background: var(--white);
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--purple);
  text-align: left;
  transition: background var(--transition);
}
.faq-item__q:hover { background: var(--off-white); }
.faq-item__q[aria-expanded="true"] { background: var(--off-white); color: var(--green-dark); }
.faq-item__icon {
  font-size: 22px;
  font-weight: 300;
  color: var(--green);
  flex-shrink: 0;
  transition: transform var(--transition);
  line-height: 1;
}
.faq-item__q[aria-expanded="true"] .faq-item__icon { transform: rotate(45deg); }
.faq-item__a {
  display: none;
  padding: 0 28px 22px;
  background: var(--off-white);
}
.faq-item__a.open { display: block; }
.faq-item__a p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
}
.faq-item__a strong { color: var(--purple); }

/* ============================================================
   STICKY MOBILE CTA
   ============================================================ */
.mobile-cta {
  display: none; /* shown via JS on mobile */
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 400;
  background: var(--white);
  border-top: 1px solid var(--border);
  padding: 12px 16px;
  gap: 10px;
  align-items: center;
  box-shadow: 0 -4px 20px rgba(45,27,78,.12);
}
.mobile-cta.visible { display: flex; }
.mobile-cta__btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 13px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  background: var(--green);
  color: var(--white);
  border: 2px solid var(--green);
  transition: all var(--transition);
  white-space: nowrap;
}
.mobile-cta__btn--outline {
  background: transparent;
  color: var(--purple);
  border-color: var(--border);
  flex: 0 0 auto;
  padding: 13px 16px;
}
.mobile-cta__close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 18px;
  cursor: pointer;
  padding: 4px 4px 4px 0;
  flex-shrink: 0;
  line-height: 1;
}

@media (max-width: 480px) {
  .title-ceto { font-size: 2.5rem; }
  .section-title { font-size: 1.8rem; }
  .preco-card__price strong { font-size: 2.2rem; }
  .book-3d { width: 180px; height: 252px; }
  .book-3d__front { width: 180px; height: 252px; }
  .book-3d__side { height: 252px; }
}