:root {
  color-scheme: light;
  --sky: #50b8e7;
  --sun: #ffd166;
  --mint: #7bdcb5;
  --coral: #ff8a65;
  --pink: #f8a9c4;
  --lavender: #b8a7ff;
  --cream: #fff8e8;
  --paper: #ffffff;
  --ink: #25324b;
  --muted: #647086;
  --soft: #eef7fb;
  --line: #dce7ee;
  --whatsapp: #16a34a;
  --whatsapp-dark: #12803a;
  --shadow: 0 18px 48px rgb(60 88 110 / 0.14);
  --radius: 8px;
  --container: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Nunito, Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 8%, rgb(255 209 102 / 0.26), transparent 25rem),
    radial-gradient(circle at 96% 16%, rgb(123 220 181 / 0.25), transparent 22rem),
    var(--cream);
  line-height: 1.5;
  overflow-x: hidden;
}

body.menu-open { overflow: hidden; }
body.modal-open { overflow: hidden; }

img {
  display: block;
  max-width: 100%;
  height: auto;
  user-select: none;
  -webkit-user-drag: none;
}

a { color: inherit; }
button, input { font: inherit; }

:focus-visible {
  outline: 3px solid rgb(80 184 231 / 0.45);
  outline-offset: 3px;
}

.sr-only,
.skip-link:not(:focus) {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link:focus {
  position: fixed;
  left: 16px;
  top: 16px;
  z-index: 50;
  padding: 10px 14px;
  background: var(--ink);
  color: white;
  border-radius: var(--radius);
}

.container {
  width: min(var(--container), calc(100% - 32px));
  margin-inline: auto;
}

.section { padding: 64px 0; }

.site-header {
  position: sticky;
  inset: 0 0 auto;
  z-index: 30;
  background: rgb(255 248 232 / 0.9);
  border-bottom: 1px solid rgb(220 231 238 / 0.82);
  backdrop-filter: blur(18px);
}

.header-inner {
  min-height: 68px;
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  min-width: max-content;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--sky), var(--mint));
  color: white;
  font-family: Fredoka, Nunito, sans-serif;
  font-weight: 700;
  box-shadow: 0 10px 20px rgb(80 184 231 / 0.28);
}

.brand strong {
  display: block;
  font-family: Fredoka, Nunito, sans-serif;
  font-size: 1.08rem;
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.1;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-left: auto;
}

.site-nav a {
  color: var(--muted);
  font-weight: 900;
  font-size: 0.9rem;
  text-decoration: none;
}

.site-nav a:hover { color: var(--ink); }

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: white;
}

.menu-toggle span:not(.sr-only) {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 900;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

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

.btn-whatsapp {
  color: white;
  background: var(--whatsapp);
  box-shadow: 0 12px 24px rgb(22 163 74 / 0.24);
}

.btn-whatsapp:hover { background: var(--whatsapp-dark); }

.btn-secondary {
  background: white;
  color: var(--ink);
  border-color: var(--line);
}

.btn-large { min-height: 54px; padding-inline: 24px; }

.btn.is-disabled,
.floating-whatsapp.is-disabled {
  pointer-events: none;
  background: #aab7c2;
  box-shadow: none;
}

.hero {
  position: relative;
  padding: clamp(44px, 7vw, 86px) 0 54px;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  opacity: 0.45;
  pointer-events: none;
}

.hero::before {
  width: 90px;
  height: 90px;
  left: 7%;
  bottom: 18px;
  background: repeating-linear-gradient(45deg, var(--pink) 0 8px, transparent 8px 16px);
}

.hero::after {
  width: 130px;
  height: 44px;
  right: 8%;
  top: 110px;
  background: var(--mint);
}

.hero-grid,
.problem-grid,
.parents-grid,
.summary-grid,
.includes-grid,
.faq-grid,
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.85fr);
  gap: clamp(28px, 5vw, 62px);
  align-items: center;
}

.eyebrow {
  margin: 0 0 10px;
  color: #1684b8;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1, h2, h3 {
  font-family: Fredoka, Nunito, sans-serif;
  color: var(--ink);
  line-height: 1.08;
  letter-spacing: 0;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(2.35rem, 8vw, 5.7rem);
}

h2 {
  margin: 0 0 12px;
  font-size: clamp(1.9rem, 4vw, 3.25rem);
}

h3 { margin: 0; font-size: 1.12rem; }
p { color: var(--muted); }

.hero-subtitle {
  max-width: 650px;
  margin: 16px 0 0;
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.hero-note {
  width: fit-content;
  margin: 18px 0 0;
  padding: 10px 14px;
  border: 1px dashed #f59e0b;
  border-radius: var(--radius);
  background: rgb(255 255 255 / 0.74);
  font-weight: 900;
  color: var(--ink);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.microcopy { margin: 10px 0 0; font-size: 0.95rem; }

.trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.trust-badges span,
.steps-grid span {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: white;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 900;
}

.hero-visual,
.summary-visual {
  min-height: 440px;
  padding: clamp(16px, 3vw, 28px);
  border: 1px solid rgb(255 255 255 / 0.78);
  border-radius: 30px;
  background: rgb(255 255 255 / 0.72);
  box-shadow: var(--shadow);
}

.book-scene {
  position: relative;
  min-height: 390px;
}

.cover-real {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  border: 10px solid white;
  border-radius: 20px;
  background: white;
  box-shadow: var(--shadow);
}

.cover-card {
  position: absolute;
  left: 4%;
  top: 2%;
  width: 46%;
  aspect-ratio: 3 / 4;
  padding: 24px;
  border: 8px solid white;
  border-radius: 18px;
  background:
    radial-gradient(circle at 70% 28%, var(--sun) 0 18%, transparent 19%),
    linear-gradient(160deg, #8bd7f5, #ffe082 52%, #f8a9c4);
  box-shadow: 0 20px 38px rgb(37 50 75 / 0.22);
  transform: rotate(-8deg);
}

.cover-card span,
.cover-card strong {
  position: relative;
  z-index: 1;
  display: block;
  font-family: Fredoka, Nunito, sans-serif;
  color: white;
  text-shadow: 0 2px 10px rgb(37 50 75 / 0.18);
}

.cover-card span { font-size: clamp(1.5rem, 3vw, 2.6rem); font-weight: 700; }
.cover-card strong { max-width: 180px; margin-top: 6px; font-size: 1.15rem; }

.cover-card i {
  position: absolute;
  right: 24px;
  bottom: 34px;
  width: 86px;
  height: 86px;
  border-radius: 50% 50% 42% 42%;
  background: var(--mint);
}

.spread {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 78%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 12px;
  border-radius: 18px;
  background: #f4f0e8;
  box-shadow: 0 26px 50px rgb(37 50 75 / 0.22);
  transform: rotate(3deg);
}

.page {
  position: relative;
  min-height: 230px;
  overflow: hidden;
  border-radius: 10px;
  background: white;
}

.page::after,
.pair-page::after,
.gallery-card::after {
  content: "Vista previa";
  position: absolute;
  right: 10px;
  bottom: 10px;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgb(255 255 255 / 0.72);
  color: rgb(37 50 75 / 0.48);
  font-size: 0.72rem;
  font-weight: 900;
}

.sun {
  position: absolute;
  width: 54px;
  height: 54px;
  right: 22px;
  top: 24px;
  border-radius: 50%;
}

.hill {
  position: absolute;
  width: 130%;
  height: 74px;
  left: -15%;
  bottom: 0;
  border-radius: 50% 50% 0 0;
}

.flower {
  position: absolute;
  width: 58px;
  height: 78px;
  left: 28%;
  bottom: 42px;
}

.page-color .sun { background: var(--sun); }
.page-color .hill { background: var(--mint); }
.page-color .flower { background: var(--coral); border-radius: 50% 50% 45% 45%; }
.page-line .sun, .page-line .hill, .page-line .flower { border: 4px solid #1f2937; background: transparent; }

.crayon {
  position: absolute;
  width: 16px;
  height: 150px;
  border-radius: 8px;
  transform-origin: center;
}

.crayon.one { right: 5%; top: 8%; background: var(--coral); transform: rotate(32deg); }
.crayon.two { left: 6%; bottom: 3%; background: var(--lavender); transform: rotate(58deg); }

.section-heading.center { max-width: 760px; margin-inline: auto; text-align: center; }
.section-heading p:last-child { margin-bottom: 0; }

.problem {
  background: rgb(255 255 255 / 0.58);
}

.problem-points,
.benefit-grid,
.comparison-grid,
.gallery-grid,
.testimonial-grid {
  display: grid;
  gap: 16px;
}

.problem-points article,
.benefit-card,
.price-card,
.gallery-card,
.comparison-card,
.accordion-item,
.testimonial-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
  box-shadow: 0 12px 28px rgb(37 50 75 / 0.07);
}

.problem-points article {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 2px 12px;
  padding: 18px;
}

.problem-points span {
  grid-row: span 2;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--sun);
  font-weight: 900;
}

.problem-points p { margin: 0; }

.benefit-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 26px; }

.benefit-card {
  padding: 20px;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.benefit-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.benefit-card span {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 14px;
  border-radius: 50%;
  background: var(--soft);
  color: #1684b8;
  font-weight: 900;
}

.benefit-card p { margin-bottom: 0; }

.feature-band,
.price-section {
  background: linear-gradient(180deg, #eaf8fd 0%, #fff8e8 100%);
}

.pair-showcase {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  margin-top: 28px;
}

.pair-page {
  position: relative;
  min-height: 360px;
  overflow: hidden;
  border: 10px solid white;
  border-radius: 18px;
  background: white;
  box-shadow: var(--shadow);
}

.pair-page > img,
.gallery-card img,
.comparison-card img,
.real-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: white;
}

.color-demo {
  background:
    radial-gradient(circle at 68% 28%, var(--sun) 0 15%, transparent 16%),
    linear-gradient(160deg, #b9ecff, #fff3c4 50%, #ffd2de);
}

.line-demo {
  background:
    radial-gradient(circle at 68% 28%, transparent 0 13%, #25324b 14% 16%, transparent 17%),
    linear-gradient(160deg, white, #fbfbfb);
}

.pair-page span {
  position: absolute;
  left: 14px;
  top: 14px;
  z-index: 2;
  padding: 6px 10px;
  border-radius: 999px;
  background: white;
  font-weight: 900;
}

.pair-arrow {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--coral);
  color: white;
  font-weight: 900;
}

.steps-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 22px;
}

.comparisons[hidden],
[hidden] { display: none !important; }

.comparison-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 24px; }

.comparison-card { overflow: hidden; }
.comparison-card header { padding: 14px 14px 0; }
.comparison-card .pair-mini { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 14px; }
.comparison-card figure { margin: 0; }
.comparison-card img { aspect-ratio: 3 / 4; border: 1px solid var(--line); border-radius: var(--radius); }
.comparison-card figcaption { margin-top: 6px; color: var(--muted); font-size: 0.82rem; font-weight: 900; }

.gallery-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 24px;
}

.gallery-card {
  position: relative;
  overflow: hidden;
  min-height: 220px;
  padding: 0;
  cursor: zoom-in;
}

.gallery-card img { aspect-ratio: 3 / 4; padding: 8px; }

.includes { background: white; }
.includes-grid { grid-template-columns: 0.8fr 1fr; }

.check-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.check-list li {
  padding: 14px 14px 14px 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfdff;
  position: relative;
  font-weight: 800;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 17px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--mint);
}

.parents-grid { grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1fr); }

.paper-stack {
  min-height: 330px;
  position: relative;
}

.paper-stack div {
  position: absolute;
  width: 58%;
  aspect-ratio: 3 / 4;
  border: 8px solid white;
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.paper-stack div:nth-child(1) { left: 3%; top: 18%; background: var(--sky); transform: rotate(-10deg); }
.paper-stack div:nth-child(2) { left: 24%; top: 4%; background: white; transform: rotate(6deg); }
.paper-stack div:nth-child(3) { right: 3%; top: 20%; background: var(--sun); transform: rotate(13deg); }

.product-summary { background: #fff; }
.summary-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 0.86fr); }

.open-book {
  width: min(520px, 100%);
  min-height: 330px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: auto;
  padding: 14px;
  border-radius: 20px;
  background: #efe6dc;
  transform: rotate(-2deg);
  box-shadow: var(--shadow);
}

.open-book span {
  border-radius: 12px;
  background: white;
}

.open-book span:first-child {
  background:
    radial-gradient(circle at 70% 25%, var(--sun) 0 14%, transparent 15%),
    linear-gradient(160deg, #c9f0ff, #fff0be, #ffd9e3);
}

.open-book span:last-child {
  background:
    radial-gradient(circle at 70% 25%, transparent 0 12%, #25324b 13% 15%, transparent 16%),
    white;
}

.price-wrap { display: grid; place-items: center; }

.price-card {
  width: min(720px, 100%);
  padding: clamp(22px, 5vw, 38px);
  text-align: center;
}

.price-values { display: grid; gap: 4px; margin: 20px 0; }
.price-values span { color: var(--muted); text-decoration: line-through; font-weight: 800; }
.price-values strong { font-family: Fredoka, Nunito, sans-serif; font-size: clamp(2rem, 5vw, 3.4rem); color: #1684b8; }

.commercial-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 22px 0;
}

.commercial-list div {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfdff;
}

.commercial-list dt { color: var(--muted); font-size: 0.78rem; font-weight: 900; text-transform: uppercase; }
.commercial-list dd { margin: 3px 0 0; font-weight: 900; }

.faq-grid { grid-template-columns: minmax(260px, 0.6fr) 1fr; align-items: start; }
.accordion { display: grid; gap: 10px; }
.accordion-item { overflow: hidden; }
.accordion-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 18px;
  border: 0;
  background: white;
  color: var(--ink);
  font-weight: 900;
  text-align: left;
  cursor: pointer;
}
.accordion-panel { padding: 0 18px 18px; }
.accordion-panel p { margin: 0; }

.final-cta {
  padding: 62px 0;
  color: white;
  background:
    radial-gradient(circle at 12% 20%, rgb(255 209 102 / 0.38), transparent 16rem),
    radial-gradient(circle at 88% 42%, rgb(248 169 196 / 0.38), transparent 16rem),
    linear-gradient(135deg, #1684b8, #52b788);
}

.final-inner { text-align: center; }
.final-inner h2 { color: white; }
.final-inner p { max-width: 660px; margin-inline: auto; color: white; }

.site-footer {
  padding: 34px 0 86px;
  background: #25324b;
  color: white;
}

.site-footer p,
.site-footer a,
.site-footer button {
  color: #d8e4ee;
}

.footer-grid {
  grid-template-columns: 1fr auto 0.9fr;
  align-items: start;
}

.site-footer nav {
  display: grid;
  gap: 10px;
}

.site-footer button {
  padding: 0;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.floating-whatsapp {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 35;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--whatsapp);
  color: white;
  text-decoration: none;
  font-weight: 900;
  box-shadow: 0 16px 34px rgb(22 163 74 / 0.34);
  animation: breathe 2.8s ease-in-out infinite;
}

@keyframes breathe {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

dialog {
  border: 0;
  border-radius: 18px;
  padding: 0;
  box-shadow: 0 30px 90px rgb(0 0 0 / 0.32);
}

dialog::backdrop { background: rgb(37 50 75 / 0.66); }

.image-modal {
  width: min(92vw, 900px);
  background: white;
}

.image-modal img {
  width: 100%;
  max-height: 86vh;
  object-fit: contain;
}

.legal-modal {
  width: min(92vw, 680px);
  padding: 28px;
}

.modal-close {
  position: absolute;
  right: 10px;
  top: 10px;
  z-index: 2;
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 50%;
  background: var(--ink);
  color: white;
  cursor: pointer;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms ease, transform 520ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .hero-grid,
  .problem-grid,
  .parents-grid,
  .summary-grid,
  .includes-grid,
  .faq-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .benefit-grid,
  .comparison-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .gallery-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .container { width: min(100% - 24px, var(--container)); }
  .section { padding: 46px 0; }
  .header-inner { min-height: 60px; }
  .menu-toggle { display: block; margin-left: auto; }
  .site-nav {
    position: fixed;
    inset: 60px 12px auto;
    display: none;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: white;
    box-shadow: var(--shadow);
  }
  .site-nav.is-open { display: grid; }
  .site-nav a { padding: 14px; }
  .header-cta { display: none; }
  .hero { padding-top: 34px; }
  .hero-actions,
  .commercial-list,
  .check-list {
    grid-template-columns: 1fr;
  }
  .hero-actions { display: grid; }
  .btn { width: 100%; }
  .hero-visual { min-height: 330px; padding: 12px; }
  .book-scene { min-height: 300px; }
  .cover-card { width: 50%; padding: 16px; }
  .spread { width: 84%; }
  .page { min-height: 170px; }
  .pair-showcase { grid-template-columns: 1fr; }
  .pair-arrow { margin-inline: auto; transform: rotate(90deg); }
  .benefit-grid,
  .comparison-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  .comparison-card .pair-mini { grid-template-columns: 1fr; }
  .gallery-card { min-height: 260px; }
  .paper-stack { min-height: 250px; }
  .floating-whatsapp {
    left: 12px;
    right: 12px;
    bottom: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation: none !important;
    transition: none !important;
  }
}