:root {
  --amarelo-logo: #eebd15;
  --infantil: #e28027;
  --iniciais: #12a89d;
  --finais: #808487;
  --escuro: #1f2630;
  --claro: #f4f5f7;
  --branco: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Montserrat', sans-serif;
  background: var(--claro);
  color: #20242a;
  line-height: 1.5;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

.hero {
  min-height: 92vh;
  padding: 40px 0 70px;
  background: radial-gradient(circle at top right, #2f6775 0%, #1f2630 58%, #151a21 100%);
  color: var(--branco);
  display: grid;
  gap: 30px;
}

.hero__brand,
.hero__content {
  width: min(1120px, 92%);
  margin: 0 auto;
}

.hero__logo-wrap {
  display: inline-flex;
  padding: 12px 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
}

.hero__logo {
  max-width: 320px;
  width: 100%;
  height: auto;
}

.tag {
  display: inline-block;
  font-weight: 700;
  color: var(--amarelo-logo);
  margin: 0 0 14px;
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin-top: 0;
}

h1 {
  font-size: clamp(1.9rem, 5vw, 3.4rem);
  max-width: 900px;
}

h1 span {
  color: var(--amarelo-logo);
}

.hero__text {
  font-size: clamp(1rem, 2.1vw, 1.2rem);
  max-width: 760px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
}

.btn {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  border: 2px solid transparent;
  font-weight: 700;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  opacity: 0.95;
}

.btn--primary {
  background: var(--amarelo-logo);
  color: #25200b;
}

.btn--ghost {
  border-color: var(--branco);
  color: var(--branco);
}

.section {
  padding: 78px 0;
}

.section--light {
  background: linear-gradient(180deg, #eef7f6 0%, #e6f2f1 100%);
}

.section--commercial {
  background: linear-gradient(180deg, #fff7ec 0%, #f7efe3 100%);
}

.section-subtitle--wide {
  max-width: 900px;
  margin-inline: auto;
}


.audience-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(4, minmax(180px, 1fr));
  gap: 16px;
}

.journey-card--light {
  margin-top: 24px;
  background: linear-gradient(145deg, #1a7f88, #13616a);
}

.section-subtitle--top {
  margin-top: 22px;
}

.differentials-note {
  margin: 30px auto 0;
  max-width: 860px;
  padding: 14px 18px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid #d4dee3;
  box-shadow: 0 8px 20px rgba(31, 38, 48, 0.08);
  color: #27333f;
  font-weight: 500;
}

.section--public {
  background: linear-gradient(180deg, #f4f6f8 0%, #ebeff2 100%);
}

.split--public {
  grid-template-columns: 1.1fr 0.9fr;
  align-items: start;
}

.public-form {
  background: var(--branco);
  border: 1px solid #d9dee4;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 10px 24px rgba(31, 38, 48, 0.12);
  display: grid;
  gap: 12px;
}

.public-form h3 {
  margin-bottom: 4px;
}

.public-form label {
  display: grid;
  gap: 6px;
  font-weight: 600;
  color: #2f3a45;
  font-size: 0.95rem;
}

.public-form input,
.public-form textarea {
  font: inherit;
  border: 1px solid #c4ccd6;
  border-radius: 10px;
  padding: 10px 12px;
}

.public-form fieldset {
  margin: 0;
  border: 1px solid #cfd7df;
  border-radius: 12px;
  padding: 10px 12px;
}

.public-form legend {
  font-weight: 700;
  color: #2d3844;
  padding: 0 4px;
}

.public-form fieldset label {
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}

.faq-group-title {
  margin: 34px 0 14px;
  color: #283544;
}

.commercial-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(4, minmax(180px, 1fr));
  gap: 16px;
}

.info-card {
  background: var(--branco);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 8px 22px rgba(31, 38, 48, 0.08);
  border: 1px solid #d9e0e6;
}

.info-card h3 {
  margin-bottom: 8px;
  color: #17426f;
}

.journey-card {
  margin-top: 26px;
  background: linear-gradient(150deg, #1f2630, #2f6775);
  color: var(--branco);
  border-radius: 18px;
  padding: 24px;
}

.journey-card ol {
  margin-bottom: 0;
  padding-left: 18px;
}

.journey-card li + li {
  margin-top: 8px;
}

.quote {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.28);
  font-style: italic;
}

.split {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 30px;
  align-items: start;
}

.highlight-card {
  background: linear-gradient(160deg, var(--iniciais), #0f8a83);
  color: var(--branco);
  border-radius: 20px;
  padding: 26px;
  box-shadow: 0 20px 40px rgba(16, 113, 106, 0.2);
}

.btn--full {
  width: 100%;
  margin-top: 16px;
}

.center {
  text-align: center;
}

.section-subtitle {
  margin-top: -8px;
  margin-bottom: 8px;
}

.digital-notice {
  margin: 0 auto 30px;
  max-width: 720px;
  color: #3e4247;
}

.books-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(220px, 1fr));
  gap: 22px;
}

.book-card {
  border-radius: 18px;
  color: var(--branco);
  padding: 18px;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.book-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.15), transparent 60%);
  pointer-events: none;
}

.book-card--infantil {
  background: var(--infantil);
}

.book-card--iniciais {
  background: var(--iniciais);
}

.book-card--finais {
  background: var(--finais);
}

.book-card__cover {
  width: 100%;
  max-width: 240px;
  margin: 0 auto 14px;
  border-radius: 12px;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.28);
}

.book-card__badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.2);
  font-size: 0.82rem;
  font-weight: 700;
}

.btn--book {
  background: var(--branco);
  color: #222;
  width: fit-content;
  margin-top: auto;
}

.section--offer {
  background: linear-gradient(180deg, #fff4e6 0%, #f4f7f8 100%);
}

.prices-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(260px, 1fr));
  gap: 18px;
  margin-top: 28px;
}

.price-card {
  background: var(--branco);
  border: 1px solid #d5dbe1;
  border-radius: 16px;
  padding: 22px;
  box-shadow: 0 8px 24px rgba(30, 41, 71, 0.08);
}

.price-card--featured {
  background: linear-gradient(170deg, #1b8b86, #227a80);
  color: var(--branco);
  position: relative;
}

.price-card__tag {
  display: inline-block;
  margin-bottom: 8px;
  background: #f9c913;
  color: #2b2206;
  font-size: 0.8rem;
  font-weight: 800;
  border-radius: 999px;
  padding: 5px 10px;
}

.offer-link {
  text-decoration: none;
  color: inherit;
}

.offer-link:hover {
  transform: translateY(-2px);
  opacity: 0.98;
}

.price {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  margin: 10px 0;
}

.bonus-card {
  margin-top: 26px;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 20px;
  align-items: center;
  background: linear-gradient(150deg, #1f2630, #2f6775);
  color: var(--branco);
  border-radius: 18px;
  padding: 18px;
}

.bonus-card img {
  width: 100%;
  border-radius: 14px;
}

.bonus-label {
  font-weight: 800;
  color: #ffd341;
  letter-spacing: 0.07em;
  margin-bottom: 4px;
}

.section--authors {
  background: linear-gradient(180deg, #e6ecef 0%, #cfd8dd 100%);
}

.authors-grid {
  margin-top: 26px;
  display: grid;
  grid-template-columns: repeat(2, minmax(280px, 1fr));
  gap: 18px;
}

.author-card {
  background: var(--branco);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 8px 24px rgba(33, 32, 58, 0.08);
}

.author-photo-wrap {
  width: 100%;
  margin-bottom: 14px;
  background: transparent;
}

.author-photo {
  width: min(100%, 220px);
  aspect-ratio: 1 / 1;
  border-radius: 14px;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  object-fit: cover;
  object-position: center top;
  display: block;
}

.section--cta {
  background: linear-gradient(145deg, #1f2630, #192029);
  color: var(--branco);
}

.section--purchase-links {
  background: linear-gradient(145deg, #1b8b86, #2f6775);
  color: var(--branco);
}

.section--faq {
  background: linear-gradient(180deg, #f0f3f5 0%, #e3e8ec 100%);
}

.faq-list {
  margin: 28px auto 0;
  max-width: 900px;
  border-radius: 8px;
  overflow: hidden;
}

.faq-item {
  background: #2f6775;
  color: var(--branco);
  border-bottom: 1px solid rgba(255, 255, 255, 0.45);
}

.faq-item:last-child {
  border-bottom: 0;
}

.faq-item[open] {
  background: var(--infantil);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 54px 18px 20px;
  font-size: clamp(1.02rem, 1.8vw, 1.25rem);
  font-weight: 700;
  position: relative;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '⌄';
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.35rem;
  line-height: 1;
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
  transform: translateY(-50%) rotate(180deg);
}

.faq-item p {
  margin: 0;
  padding: 0 20px 20px;
  background: #f2f3f6;
  color: #1f2531;
  font-size: 1.02rem;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.purchase-links {
  margin-top: 24px;
  display: grid;
  gap: 12px;
  justify-items: center;
}

.purchase-links .btn {
  width: min(820px, 100%);
}

.btn--collection {
  border-color: var(--amarelo-logo);
  color: var(--amarelo-logo);
}

.center-actions {
  justify-content: center;
}

.btn--whatsapp {
  background: #25d366;
  border-color: #25d366;
  color: #072313;
}

.whatsapp-float {
  position: fixed;
  right: 18px;
  bottom: 18px;
  background: #25d366;
  color: #072313;
  font-weight: 800;
  text-decoration: none;
  padding: 12px 16px;
  border-radius: 999px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.site-footer {
  background: #1a2028;
  color: #b6bfd5;
  padding: 18px 0 26px;
}

.site-footer p {
  margin: 0;
  font-size: 0.92rem;
}

@media (max-width: 900px) {
  .split,
  .books-grid,
  .authors-grid,
  .commercial-grid,
  .audience-grid,
  .prices-grid,
  .bonus-card {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .author-photo {
    width: min(100%, 260px);
    margin-inline: auto;
  }
}