/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(31, 31, 31, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-3);
}

.site-header__logo img {
  height: 40px;
  width: auto;
  aspect-ratio: 2300 / 787;
  object-fit: contain;
  display: block;
}

@media (min-width: 640px) {
  .site-header__logo img {
    height: 52px;
  }
}

/* ===== Botões ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.9rem 1.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform var(--duration) var(--ease), background var(--duration) var(--ease), border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
  white-space: nowrap;
}

.btn:active {
  transform: translateY(1px);
}

.btn:focus-visible {
  outline: 2px solid var(--color-green-strong);
  outline-offset: 3px;
}

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

.btn--primary:hover {
  background: var(--color-green-strong);
}

.btn--outline {
  background: transparent;
  border-color: currentColor;
  color: inherit;
}

.btn--outline:hover {
  background: rgba(255, 255, 255, 0.08);
}

.btn--block {
  width: 100%;
}

.btn--sm {
  padding: 0.65rem 1.25rem;
  font-size: 0.72rem;
}

.btn[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ===== Cards de pilares (grid 4 colunas) ===== */
.pillars {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-6);
}

@media (min-width: 640px) {
  .pillars {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1000px) {
  .pillars {
    grid-template-columns: repeat(4, 1fr);
  }
}

.pillar-card {
  border-top: 1px solid #E4E4E0;
  padding-top: var(--space-4);
}

.pillar-card__index {
  font-size: 1.75rem;
  color: var(--color-green-strong);
  font-weight: 300;
  display: block;
  margin-bottom: var(--space-2);
}

.pillar-card__title {
  font-size: 1.15rem;
  margin-bottom: var(--space-2);
}

.pillar-card__desc {
  color: var(--text-on-light-muted);
  font-size: 0.95rem;
}

/* ===== Comparação (duas leituras) ===== */
.compare {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-top: var(--space-6);
  border: 1px solid #E4E4E0;
  border-radius: var(--radius-md);
  overflow: hidden;
}

@media (min-width: 800px) {
  .compare {
    grid-template-columns: 1fr 1fr;
    gap: 0;
  }
}

.compare__col {
  padding: var(--space-5);
}

.compare__col:first-child {
  background: var(--color-white);
}

.compare__col:last-child {
  background: var(--color-graphite);
  color: var(--text-on-dark);
}

.compare__label {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-on-light-muted);
  margin-bottom: var(--space-4);
  display: block;
}

.compare__col:last-child .compare__label {
  color: var(--text-on-dark-muted);
}

.compare__list li {
  padding-block: var(--space-2);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  font-size: 0.95rem;
}

.compare__col:last-child .compare__list li {
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.compare__list li:last-child {
  border-bottom: none;
}

/*
  Guia — apresentação da capa real (imagem extraída do PDF aprovado, não
  recriada). Moldura discreta: sem 3D, sem rotação, sem efeito de mockup de
  infoproduto — apenas a página real, com leve profundidade.
*/
.guide-frame {
  width: 100%;
  max-width: 320px;
  padding: 10px;
  background: var(--color-white);
  box-shadow: var(--shadow-elevated);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.guide-frame img {
  width: 100%;
  height: auto;
  aspect-ratio: 1600 / 2264;
  object-fit: contain;
  display: block;
}

.guide-frame__caption {
  margin-top: var(--space-3);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-on-dark-muted);
  text-align: center;
}

/* ===== Bloco de destaque (quote) ===== */
.quote-block {
  max-width: var(--container-narrow);
}

.quote-block__text {
  font-size: clamp(1.4rem, 3vw, 2.1rem);
  line-height: 1.3;
}

.quote-block__text em {
  font-style: normal;
  color: var(--color-green);
}

.quote-block__caption {
  margin-top: var(--space-4);
  color: var(--text-on-dark-muted);
  font-size: 1rem;
  max-width: 46ch;
}

/* Sumário do guia — seis blocos em cards, dois por linha no desktop, números em verde. */
.toc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

@media (min-width: 700px) {
  .toc-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.toc-item {
  background: var(--color-white);
  padding: var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid #E9E9E5;
}

.toc-item__num {
  display: block;
  font-size: 1.6rem;
  font-weight: 300;
  color: var(--color-green-strong);
  margin-bottom: var(--space-2);
  line-height: 1;
}

.toc-item__title {
  font-size: 1.05rem;
  margin-bottom: var(--space-1);
}

.toc-item__desc {
  color: var(--text-on-light-muted);
  font-size: 0.9rem;
}

/* ===== Sobre / fundadores ===== */
.about {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  align-items: center;
  margin-top: var(--space-6);
}

@media (min-width: 860px) {
  .about {
    grid-template-columns: 0.9fr 1.1fr;
  }
}

.about__photo {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.about__photo img {
  width: 100%;
  height: auto;
}

.about__names {
  margin-top: var(--space-4);
  display: flex;
  gap: var(--space-5);
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--text-on-light-muted);
}

.about__names strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--text-on-light);
  margin-bottom: 0.15rem;
}

/* ===== Formulário ===== */
.form-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-elevated);
  max-width: var(--container-form);
  margin-inline: auto;
  color: var(--text-on-light);
}

@media (min-width: 640px) {
  .form-card {
    padding: var(--space-6);
  }
}

.field {
  margin-bottom: var(--space-4);
}

.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: var(--space-1);
}

.field .field__optional {
  font-weight: 400;
  color: var(--text-on-light-muted);
}

.field input,
.field select {
  width: 100%;
  padding: 0.8rem 0.9rem;
  border: 1.5px solid #DEDEDA;
  border-radius: var(--radius-sm);
  background: var(--color-white);
  font-size: 1rem;
  transition: border-color var(--duration) var(--ease);
}

.field input:focus,
.field select:focus {
  outline: none;
  border-color: var(--color-green-strong);
}

.field input[aria-invalid="true"],
.field select[aria-invalid="true"] {
  border-color: var(--color-error);
}

.field__error {
  color: var(--color-error);
  font-size: 0.8rem;
  margin-top: 0.35rem;
  display: none;
}

.field__error.is-visible {
  display: block;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

@media (min-width: 560px) {
  .field-row {
    grid-template-columns: 1fr 1fr;
  }
}

.consent {
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
  font-size: 0.8rem;
  color: var(--text-on-light-muted);
  margin-bottom: var(--space-4);
}

.consent input {
  margin-top: 0.2rem;
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  accent-color: var(--color-green-strong);
}

/* Honeypot — oculto de humanos, visível para bots que preenchem tudo */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Estados de envio */
.form-status {
  display: none;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-top: var(--space-3);
}

.form-status.is-visible {
  display: flex;
}

.form-status--error {
  background: var(--color-error-bg);
  color: var(--color-error);
}

.spinner {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(31, 31, 31, 0.15);
  border-top-color: var(--color-graphite);
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.btn .spinner {
  border-color: rgba(31, 31, 31, 0.25);
  border-top-color: var(--color-graphite);
  display: none;
}

.btn.is-loading .spinner {
  display: inline-block;
}

.btn.is-loading .btn__label {
  opacity: 0.75;
}

/* ===== CTA comercial ===== */
.cta-band {
  text-align: center;
}

.cta-band__title {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  max-width: 20ch;
  margin-inline: auto;
}

.cta-band .btn {
  margin-top: var(--space-5);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-graphite);
  color: var(--text-on-dark-muted);
  padding-block: var(--space-6);
  font-size: 0.85rem;
}

.site-footer__top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-5);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.site-footer__logo img {
  height: 34px;
  width: auto;
  aspect-ratio: 2300 / 787;
  object-fit: contain;
  display: block;
  margin-bottom: var(--space-3);
}

.site-footer__tagline {
  max-width: 30ch;
}

.site-footer__contact a {
  color: var(--color-white);
  text-decoration: none;
}

.site-footer__contact a:hover {
  color: var(--color-green);
}

.site-footer__contact li {
  margin-bottom: var(--space-2);
}

.site-footer__bottom {
  padding-top: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2);
}