:root {
  --bg: #f7f5f0;
  --surface: #ffffff;
  --surface-muted: #f5f0e6;
  --text: #18324a;
  --text-soft: #546679;
  --border: #d9d5cc;
  --border-strong: #cbb78e;
  --accent: #234c78;
  --accent-soft: #edf3f8;
  --accent-warm: #b9985a;
  --accent-warm-soft: #f4ecdd;
  --shadow: 0 16px 40px rgba(24, 50, 74, 0.08);
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 72rem;
  --font-body: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.92), transparent 28%),
    linear-gradient(180deg, #faf8f4 0%, var(--bg) 100%);
  color: var(--text);
  line-height: 1.6;
}

img,
iframe,
video {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

.page-shell {
  padding: 1rem 0 4rem;
}

.container {
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
}

.section {
  padding: 1rem 0;
}

.hero-section {
  padding-top: 2rem;
}

.stack-lg > * + * {
  margin-top: 1.5rem;
}

.stack-md > * + * {
  margin-top: 1rem;
}

.section-heading h2,
.prose h2,
.prose h1,
#hero-content h1 {
  margin: 0;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

#hero-content {
  max-width: 42rem;
  padding: 2rem 0 1rem;
  position: relative;
}

#hero-content::before {
  content: "";
  display: block;
  width: 4.5rem;
  height: 0.3rem;
  margin-bottom: 1.25rem;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-warm) 100%);
}

#hero-content h1 {
  font-size: clamp(2.1rem, 7vw, 4.5rem);
}

#hero-content p {
  margin: 0;
  color: var(--text-soft);
  font-size: 1.05rem;
}

#hero-content strong {
  color: var(--accent);
}

.eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.video-section,
.book-section,
.faq-section,
.plans-section,
.whatsapp-section {
  padding-top: 1.5rem;
}

.video-frame {
  overflow: hidden;
  border: 1px solid rgba(35, 76, 120, 0.12);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.video-frame script,
.video-frame style {
  display: none;
}

.support-copy {
  margin: 0;
  max-width: 40rem;
  color: var(--text-soft);
  font-size: 0.98rem;
}

.prose {
  max-width: 44rem;
}

.prose h2 {
  font-size: clamp(1.6rem, 4.8vw, 2.5rem);
  margin-bottom: 1rem;
}

.prose p,
.prose ul {
  margin: 0 0 1rem;
  color: var(--text-soft);
}

.prose ul {
  padding-left: 1.25rem;
}

.prose li + li {
  margin-top: 0.55rem;
}

.faq-panel {
  display: grid;
  gap: 0.85rem;
}

.faq-list {
  display: grid;
  gap: 0.85rem;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.82);
  overflow: hidden;
  box-shadow: 0 8px 22px rgba(24, 50, 74, 0.04);
}

.book-card {
  display: grid;
  gap: 1.25rem;
  padding: 1.35rem;
  border: 1px solid rgba(185, 152, 90, 0.3);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(251, 248, 241, 0.96) 100%);
  box-shadow: 0 12px 28px rgba(24, 50, 74, 0.05);
}

.book-copy {
  max-width: 42rem;
}

.book-card h2,
.book-card p {
  margin: 0;
}

.book-description,
.book-support {
  color: var(--text-soft);
}

.book-price {
  color: var(--accent);
  font-size: 1.1rem;
  font-weight: 700;
}

.book-card .button-link {
  width: 100%;
}

.book-media {
  display: flex;
  align-items: center;
  justify-content: center;
}

.book-cover {
  width: min(100%, 12rem);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  box-shadow: 0 12px 24px rgba(24, 50, 74, 0.08);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1rem 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

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

.faq-item summary::after {
  content: "+";
  color: var(--accent-warm);
  font-size: 1.25rem;
  line-height: 1;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-answer {
  padding: 0 1.1rem 1rem;
  color: var(--text-soft);
}

.plans-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.plan-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 100%;
  padding: 1.35rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 12px 30px rgba(24, 50, 74, 0.05);
}

.plan-card.is-featured {
  border-color: rgba(185, 152, 90, 0.45);
  background: linear-gradient(180deg, #ffffff 0%, #fbf8f1 100%);
  box-shadow: 0 18px 36px rgba(35, 76, 120, 0.09);
}

.plan-badge {
  align-self: flex-start;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: var(--accent-warm-soft);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid rgba(185, 152, 90, 0.45);
}

.plan-copy h3,
.plan-copy p {
  margin: 0;
}

.plan-copy h3 {
  font-size: 1.45rem;
  line-height: 1.2;
}

.plan-price {
  color: var(--accent);
  font-size: 1.05rem;
  font-weight: 700;
}

.plan-benefits {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--text-soft);
}

.plan-benefits li + li {
  margin-top: 0.6rem;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 3.5rem;
  padding: 0.95rem 1.25rem;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.button-link:hover,
.button-link:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 10px 18px rgba(35, 76, 120, 0.18);
}

.button-link.secondary {
  background: transparent;
  color: var(--accent);
  border-color: rgba(185, 152, 90, 0.55);
}

.whatsapp-card,
.testimonials-placeholder {
  padding: 1.4rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.85);
  box-shadow: 0 10px 28px rgba(24, 50, 74, 0.05);
}

.whatsapp-card h2,
.whatsapp-card p,
.testimonials-placeholder h2,
.testimonials-placeholder p {
  margin: 0 0 0.9rem;
}

.whatsapp-card p,
.testimonials-placeholder p {
  color: var(--text-soft);
  max-width: 40rem;
}

.closing-section {
  padding-top: 2rem;
}

[hidden] {
  display: none !important;
}

@media (min-width: 48rem) {
  .page-shell {
    padding-top: 1.5rem;
  }

  .section {
    padding: 1.5rem 0;
  }

  .book-card {
    grid-template-columns: minmax(0, 1.7fr) minmax(12rem, 0.8fr);
    align-items: center;
  }

  .book-card .button-link {
    width: auto;
    min-width: 12rem;
  }

  .plans-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
  }

  .plan-card {
    padding: 1.5rem;
  }

  .whatsapp-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
  }

  .whatsapp-card .button-link {
    width: auto;
    min-width: 15rem;
  }
}