:root {
  --ink: #10151f;
  --muted: #526071;
  --soft: #f5f7fb;
  --paper: #f8faf5;
  --panel: #ffffff;
  --line: #dce3eb;
  --accent: #2f8f47;
  --accent-dark: #24723a;
  --teal: #176d66;
  --teal-soft: #e8f4f1;
  --blue: #264f7c;
  --gold: #f3c85d;
  --shadow: 0 18px 46px rgba(16, 21, 31, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: #ffffff;
}

.sandbox-banner {
  position: sticky;
  top: 0;
  z-index: 90;
  padding: 10px 16px;
  color: #111827;
  background: #ffe08a;
  border-bottom: 1px solid rgba(17, 24, 39, 0.18);
  font-size: 14px;
  font-weight: 800;
  text-align: center;
}

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

a {
  color: inherit;
}

h1,
h2,
h3,
p,
li,
strong {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(38px, 6.4vw, 76px);
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(28px, 3.6vw, 44px);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 8px;
  font-size: 23px;
  line-height: 1.12;
  letter-spacing: 0;
}

p {
  line-height: 1.58;
}

.landing {
  min-height: 100vh;
}

.hero,
.insight-band,
.sample-band,
.inside-band,
.why-band,
.product-offer-band,
.content-map-band,
.slang-band,
.features-band,
.final-cta-band,
.bundle-band,
.trust-band,
.checkout-band,
.faq-band {
  padding: 58px max(20px, calc((100vw - 1120px) / 2));
}

.hero {
  min-height: auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 410px);
  gap: clamp(26px, 5vw, 58px);
  align-items: center;
  color: var(--ink);
  background: var(--paper);
  border-bottom: 1px solid #eadfce;
}

.hero::before {
  content: none;
}

.hero::after {
  content: none;
}

.hero-visual {
  order: 2;
  align-self: center;
}

.hero-visual img {
  width: 100%;
  max-height: 680px;
  object-fit: contain;
  border-radius: 8px;
  background: #fff4df;
  box-shadow: var(--shadow);
}

.hero-copy {
  order: 1;
  width: 100%;
  padding: 32px 0;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: var(--accent);
}

.lead {
  margin: 22px 0 0;
  max-width: 610px;
  color: var(--muted);
  font-size: clamp(19px, 2.5vw, 25px);
  line-height: 1.42;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 11px;
  margin-top: 30px;
}

.button-link,
.secondary-button,
.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: #ffffff;
  font: inherit;
  font-weight: 850;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.button-link:hover,
.primary-button:hover,
.sticky-button:hover {
  background: var(--accent-dark);
}

.secondary-button {
  border: 1px solid #d1c4b5;
  background: #ffffff;
  color: var(--ink);
  box-shadow: 0 10px 22px rgba(16, 21, 31, 0.13), inset 0 -2px 0 rgba(16, 21, 31, 0.08);
}

.secondary-button:hover {
  border-color: #bca996;
  background: #fffaf4;
  box-shadow: 0 13px 26px rgba(16, 21, 31, 0.16), inset 0 -2px 0 rgba(16, 21, 31, 0.08);
  transform: translateY(-1px);
}

button.secondary-button {
  appearance: none;
}

.primary-button {
  width: 100%;
}

.primary-button:disabled {
  opacity: 0.62;
  cursor: not-allowed;
}

.proof-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 24px;
  max-width: 660px;
}

.proof-row span {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  padding: 0 11px;
  border: 1px solid #d8ccbb;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.product-offer-band {
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

.product-offer-card {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(260px, 0.7fr);
  gap: 22px;
  align-items: start;
  padding: clamp(18px, 3.2vw, 30px);
  border: 1px solid #d8e3ec;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(16, 21, 31, 0.08);
}

.product-copy h2 {
  max-width: 620px;
}

.book-row-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 20px;
}

.book-row-list div {
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 14px;
  border: 1px solid #dce3eb;
  border-radius: 8px;
  background: #f8fafc;
}

.book-row-list span {
  color: var(--muted);
  font-weight: 800;
}

.book-row-list strong {
  color: var(--teal);
  text-align: right;
}

.product-facts {
  display: grid;
  gap: 9px;
}

.product-facts span {
  min-height: 42px;
  display: flex;
  align-items: center;
  padding: 0 13px;
  border: 1px solid #d8e3ec;
  border-radius: 8px;
  background: #f6fbff;
  color: #293443;
  font-weight: 850;
}

.price-stack {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.price-stack div {
  padding: 16px;
  border: 1px solid #eadfce;
  border-radius: 8px;
  background: var(--paper);
}

.price-stack .is-current {
  border-color: rgba(185, 67, 49, 0.28);
  background: #fff2ee;
}

.price-stack span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  font-weight: 850;
}

.price-stack strong {
  display: block;
  margin-top: 5px;
  color: var(--ink);
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1;
}

.price-stack .is-current strong {
  color: var(--accent);
}

.product-actions {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.content-map-band {
  display: grid;
  grid-template-columns: minmax(0, 0.68fr) minmax(0, 1.32fr);
  gap: 34px;
  align-items: start;
  background: #f8fafc;
  border-bottom: 1px solid var(--line);
}

.topic-accordion {
  display: grid;
  gap: 12px;
}

.topic-book,
.topic-group {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  overflow: hidden;
}

.topic-book > summary,
.topic-group > summary {
  display: flex;
  align-items: center;
  gap: 13px;
  min-height: 62px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

.topic-book > summary::-webkit-details-marker,
.topic-group > summary::-webkit-details-marker {
  display: none;
}

.topic-book > summary::after,
.topic-group > summary::after {
  content: "+";
  margin-left: auto;
  color: var(--accent);
  font-size: 22px;
  font-weight: 850;
  line-height: 1;
}

.topic-book[open] > summary::after,
.topic-group[open] > summary::after {
  content: "-";
}

.topic-level-badge {
  width: 42px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border-radius: 8px;
  background: var(--teal);
  color: #ffffff;
  font-weight: 900;
}

.topic-book.level-a1 .topic-level-badge {
  background: #2f8f47;
}

.topic-book.level-a2 .topic-level-badge {
  background: #246fb3;
}

.topic-book.level-b1 .topic-level-badge {
  background: #b66a10;
}

.topic-book.level-b2 .topic-level-badge {
  background: #7c3b98;
}

.topic-book summary strong {
  display: block;
  color: var(--ink);
  font-size: 18px;
  line-height: 1.15;
}

.topic-book summary small {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-weight: 750;
}

.topic-book-body {
  display: grid;
  gap: 9px;
  padding: 0 12px 12px;
}

.topic-group > summary {
  min-height: 48px;
  background: #f8fafc;
  color: #293443;
  font-weight: 850;
}

.topic-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 12px;
  margin: 0;
  padding: 8px 12px 14px;
  list-style: none;
}

.topic-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 38px;
  border-bottom: 1px solid #edf1f5;
  color: #293443;
  font-size: 14px;
  font-weight: 650;
}

.topic-list li span {
  width: 27px;
  height: 27px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border-radius: 999px;
  background: #edf4f7;
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
}

.section-cta-row {
  grid-column: 2;
  display: flex;
  justify-content: flex-start;
  margin-top: 6px;
}

.slang-band {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: 28px;
  align-items: start;
  background: #fffaf4;
  border-bottom: 1px solid #eadfce;
}

.slang-carousel {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.slang-carousel img {
  width: 100%;
  height: clamp(300px, 36vw, 470px);
  object-fit: cover;
  object-position: top center;
  border: 1px solid #eadfce;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(16, 21, 31, 0.08);
}

.slang-chips,
.product-facts,
.proof-row {
  overflow: hidden;
}

.slang-chips {
  grid-column: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.slang-chips span,
.included-line {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  padding: 0 11px;
  border: 1px solid #d8ccbb;
  border-radius: 999px;
  background: #ffffff;
  color: #334155;
  font-size: 13px;
  font-weight: 850;
}

.included-line {
  grid-column: 2;
  width: max-content;
  max-width: 100%;
  margin: 0;
}

.features-band {
  display: grid;
  grid-template-columns: minmax(0, 0.62fr) minmax(0, 1.38fr);
  gap: 30px;
  align-items: start;
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.feature-grid article {
  min-height: 210px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
}

.feature-grid h3 {
  margin-top: 8px;
}

.feature-grid p {
  margin: 10px 0 0;
  color: var(--muted);
}

.feature-kicker {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 9px;
  border-radius: 999px;
  background: var(--teal-soft);
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.compact-audio {
  width: 100%;
  margin-top: 12px;
  background: #ffffff;
}

.text-button {
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--accent);
  font: inherit;
  font-weight: 850;
  text-decoration: underline;
  cursor: pointer;
}

.final-cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  background: #10151f;
  color: #ffffff;
}

.final-cta-band h2 {
  color: #ffffff;
}

.final-cta-band p:not(.eyebrow) {
  max-width: 700px;
  color: rgba(255, 255, 255, 0.74);
}

.final-cta-band .button-link {
  flex: 0 0 auto;
  background: #ffffff;
  color: #10151f;
}

.final-cta-band .button-link:hover {
  background: #f4e9dc;
}

.insight-band {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: 34px;
  align-items: start;
  background: #ffffff;
}

.section-heading {
  position: sticky;
  top: 24px;
}

.insight-grid,
.level-grid,
.why-grid {
  display: grid;
  gap: 14px;
}

.insight-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.insight-grid article,
.why-grid article,
.level-card,
.testimonial {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.insight-grid article {
  min-height: 136px;
  padding: 22px;
}

.insight-grid strong,
.why-grid strong {
  display: block;
  font-size: 20px;
  line-height: 1.18;
}

.insight-grid p,
.section-heading p,
.sample-copy p,
.level-meta p,
.why-grid p,
.level-card p,
.bundle-cta p,
.checkout-copy p,
.checkout-list,
.checkout-note,
.message-page p,
.download-page p {
  color: var(--muted);
}

.total-line {
  grid-column: 2;
  margin: 0;
  padding: 14px 16px;
  border: 1px solid #d8e3ec;
  border-radius: 8px;
  background: #f8fafc;
  color: #293443;
  font-weight: 850;
}

.sample-band {
  display: grid;
  grid-template-columns: minmax(0, 0.74fr) minmax(0, 1.26fr);
  gap: 30px;
  align-items: start;
  background: var(--teal-soft);
  border-top: 1px solid #d5e6e2;
  border-bottom: 1px solid #d5e6e2;
}

.sample-copy .secondary-button {
  border-color: var(--line);
}

.sample-button {
  margin-top: 16px;
}

.preview-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  align-items: stretch;
}

.preview-proof img {
  width: 100%;
  height: clamp(250px, 34vw, 410px);
  object-fit: cover;
  object-position: top center;
  border: 1px solid #cfe1dd;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(23, 109, 102, 0.10);
}

.inside-band {
  display: grid;
  grid-template-columns: minmax(0, 0.58fr) minmax(0, 1.42fr);
  gap: 30px;
  align-items: start;
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

.level-gallery {
  min-width: 0;
  padding: 12px;
  border: 1px solid #cfe1dd;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 14px 34px rgba(23, 109, 102, 0.10);
}

.level-meta {
  display: grid;
  gap: 5px;
  margin-bottom: 12px;
  padding: 14px;
  border: 1px solid #d8e3ec;
  border-radius: 8px;
  background: #f8fafc;
}

.level-meta strong {
  font-size: 22px;
  line-height: 1.12;
}

.level-meta span {
  color: var(--teal);
  font-size: 14px;
  font-weight: 850;
}

.level-meta p {
  margin: 0;
}

.gallery-cta {
  width: 100%;
  margin-top: 12px;
}

.level-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}

.level-tab,
.gallery-nav,
.gallery-dot {
  border: 0;
  font: inherit;
  cursor: pointer;
}

.level-tab {
  min-height: 40px;
  border: 1px solid #c8d5e2;
  border-radius: 8px;
  background: #edf3f7;
  color: var(--ink);
  font-weight: 850;
  box-shadow: inset 0 -2px 0 rgba(16, 21, 31, 0.06);
}

.level-tab:hover {
  background: #ffffff;
}

.level-tab.is-active {
  border-color: transparent;
  color: #ffffff;
  box-shadow: none;
}

.level-tab.level-a1.is-active {
  background: #2f8f47;
}

.level-tab.level-a2.is-active {
  background: #246fb3;
}

.level-tab.level-b1.is-active {
  background: #b66a10;
}

.level-tab.level-b2.is-active {
  background: #7c3b98;
}

.gallery-frame {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  background: #f8fafc;
}

.gallery-slide {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 520px;
  background: #fffaf4;
}

.gallery-slide img,
.preview-image {
  width: 100%;
  aspect-ratio: 476 / 673;
  object-fit: contain;
  background: #fff4df;
}

.gallery-slide img {
  height: min(720px, 76vh);
}

.gallery-nav {
  position: absolute;
  top: 50%;
  z-index: 2;
  width: 42px;
  height: 52px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--ink);
  transform: translateY(-50%);
  box-shadow: 0 8px 20px rgba(16, 21, 31, 0.18);
}

.gallery-nav.prev {
  left: 8px;
}

.gallery-nav.next {
  right: 8px;
}

.gallery-nav::before {
  font-size: 34px;
  line-height: 1;
}

.gallery-nav.prev::before {
  content: "\2039";
}

.gallery-nav.next::before {
  content: "\203a";
}

.gallery-caption {
  display: grid;
  gap: 3px;
  min-height: 54px;
  padding: 12px 4px 4px;
  text-align: center;
}

.gallery-caption strong {
  font-size: 18px;
}

.gallery-caption span {
  color: var(--muted);
  font-size: 14px;
}

.gallery-dots {
  display: flex;
  justify-content: center;
  gap: 7px;
  padding-top: 8px;
}

.gallery-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #b9c7d5;
  padding: 0;
}

.gallery-dot.is-active {
  width: 24px;
  background: var(--accent);
}

.visual-slide-card {
  width: min(100%, 620px);
  min-height: 520px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  padding: clamp(18px, 4vw, 34px);
  border: 1px solid #d6e0e8;
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  box-shadow: 0 14px 38px rgba(16, 21, 31, 0.10);
}

.visual-slide-card h3 {
  margin: 0;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.02;
}

.visual-slide-card p {
  margin: 0;
  color: var(--muted);
}

.card-kicker {
  color: var(--teal) !important;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 4px;
}

.topic-item {
  min-height: 104px;
  display: grid;
  align-content: center;
  gap: 5px;
  padding: 13px;
  border: 1px solid #dce3eb;
  border-radius: 8px;
  background: #f8fafc;
}

.topic-item strong {
  width: 38px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: #ffffff;
  font-size: 15px;
}

.topic-item.level-a1 strong {
  background: #2f8f47;
}

.topic-item.level-a2 strong {
  background: #246fb3;
}

.topic-item.level-b1 strong {
  background: #b66a10;
}

.topic-item.level-b2 strong {
  background: #7c3b98;
}

.topic-item span {
  font-weight: 850;
}

.topic-item small,
.inside-note,
.audio-file small {
  color: var(--muted);
  font-size: 13px;
}

.audio-files,
.quiz-options {
  display: grid;
  gap: 9px;
}

.audio-file {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  min-height: 58px;
  padding: 9px 12px;
  border: 1px solid #dce3eb;
  border-radius: 8px;
  background: #f8fafc;
  color: var(--ink);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.audio-file strong,
.audio-file small {
  display: block;
}

.audio-file strong {
  font-size: 15px;
  line-height: 1.18;
}

.audio-file:hover,
.audio-file.is-playing {
  border-color: rgba(23, 109, 102, 0.38);
  background: #edf7f4;
}

.audio-icon {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: var(--teal);
  position: relative;
}

.audio-icon::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 9px;
  width: 0;
  height: 0;
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
  border-left: 12px solid #ffffff;
}

.audio-file.is-playing .audio-icon::before {
  left: 11px;
  top: 9px;
  width: 4px;
  height: 16px;
  border: 0;
  background: #ffffff;
  box-shadow: 8px 0 0 #ffffff;
}

.quiz-word {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 76px;
  border-radius: 8px;
  background: #edf7f4;
  color: var(--teal);
  font-size: clamp(30px, 5vw, 54px);
  font-weight: 900;
}

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

.quiz-option {
  min-height: 48px;
  border: 1px solid #cbd8e2;
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  font: inherit;
  font-weight: 850;
  cursor: pointer;
}

.quiz-option:hover {
  background: #f8fafc;
}

.quiz-option.is-correct {
  border-color: #2f8f47;
  background: #e7f6ea;
  color: #17662d;
}

.quiz-option.is-wrong {
  border-color: var(--accent);
  background: #fff0ed;
  color: var(--accent-dark);
}

.final-card {
  min-height: 520px;
  align-items: flex-start;
  background: #10151f;
  color: #ffffff;
}

.final-card p {
  color: rgba(255, 255, 255, 0.78);
}

.final-card strong {
  margin-top: 8px;
  color: var(--gold);
}

.inline-preview-cta {
  width: min(360px, 100%);
  margin-top: 10px;
}

.why-band {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: 34px;
  align-items: start;
  background: #f8fafc;
}

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

.why-grid article {
  min-height: 170px;
  padding: 22px;
  background: #ffffff;
}

.why-grid p {
  margin: 10px 0 0;
}

.bundle-band {
  background: #f8fafc;
}

.bundle-band .section-heading {
  position: static;
  margin-bottom: 26px;
}

.bundle-summary-card {
  margin-bottom: 16px;
  padding: 20px;
  border: 1px solid #d8e3ec;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 14px 32px rgba(16, 21, 31, 0.08);
}

.bundle-summary-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.bundle-summary-top .eyebrow {
  margin-bottom: 7px;
}

.bundle-summary-card h3 {
  margin-bottom: 0;
  max-width: 620px;
  font-size: clamp(28px, 4vw, 40px);
}

.bundle-summary-card > p {
  max-width: 760px;
  margin: 16px 0 0;
  color: var(--muted);
}

.bundle-price {
  min-width: 150px;
  padding: 12px 14px;
  border: 1px solid #eadfce;
  border-radius: 8px;
  background: var(--paper);
  text-align: right;
}

.bundle-price strong {
  display: block;
  color: var(--ink);
  font-size: 34px;
  line-height: 1;
}

.bundle-price span {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 750;
}

.topic-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 15px;
}

.topic-chips span {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  padding: 0 11px;
  border: 1px solid #d6e2ea;
  border-radius: 999px;
  background: #f5fafc;
  color: #334155;
  font-size: 13px;
  font-weight: 850;
}

.bundle-checklist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 18px;
  margin-top: 16px;
}

.bundle-checklist span {
  position: relative;
  min-height: 30px;
  padding-left: 25px;
  color: #293443;
  line-height: 1.35;
}

.bundle-checklist span::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 3px;
  width: 7px;
  height: 13px;
  border-right: 3px solid #278257;
  border-bottom: 3px solid #278257;
  transform: rotate(42deg);
}

.level-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.level-card {
  overflow: hidden;
}

.level-card img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background: #edf1f7;
}

.level-card div {
  padding: 17px;
}

.bundle-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 18px;
  padding: 18px;
  border: 1px solid #c9dce7;
  border-radius: 8px;
  background: #eef7fb;
}

.bundle-cta p {
  margin: 0;
  max-width: 690px;
}

.trust-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  background: #ffffff;
}

.reviews-heading {
  grid-column: 1 / -1;
  position: static;
}

.testimonial {
  display: block;
  min-height: 0;
  padding: 22px;
  background: #f8fafc;
  box-shadow: 0 12px 28px rgba(16, 21, 31, 0.06);
}

.compact-review {
  padding: 18px;
}

.compact-review .reviewer-header {
  grid-template-columns: 52px minmax(0, 1fr);
  margin-bottom: 14px;
}

.compact-review .reviewer-header img {
  width: 52px;
  height: 52px;
}

.compact-review blockquote strong {
  font-size: 17px;
}

.compact-review blockquote p {
  font-size: 14px;
}

.reviewer-header {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  margin-bottom: 18px;
}

.reviewer-header img {
  width: 68px;
  height: 68px;
  object-fit: cover;
  border-radius: 50%;
}

blockquote {
  margin: 0;
}

.reviewer-info cite {
  display: block;
  color: #293443;
  font-size: 19px;
  line-height: 1.12;
  font-style: normal;
  font-weight: 900;
}

.reviewer-info span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.28;
  font-weight: 800;
}

.review-rating {
  color: #f3b51f;
  font-size: 15px;
  line-height: 1;
  letter-spacing: 0;
  white-space: nowrap;
}

blockquote strong {
  display: block;
  margin-bottom: 11px;
  color: #1f2937;
  font-size: 18px;
  line-height: 1.35;
}

blockquote p {
  margin: 0;
  color: #293443;
}

.checkout-band {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(360px, 0.7fr);
  gap: 42px;
  align-items: start;
  background: var(--paper);
  border-top: 1px solid #eadfce;
}

.checkout-list {
  display: grid;
  gap: 8px;
  margin: 18px 0 0;
  padding-left: 20px;
  line-height: 1.55;
}

.discount-note {
  max-width: 520px;
  margin: 14px 0 0;
  padding: 12px 14px;
  border: 1px solid #efd2c9;
  border-radius: 8px;
  background: #fff5f1;
  color: #893226;
  font-weight: 700;
}

.checkout-panel {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.checkout-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 58px;
  margin-bottom: 16px;
  padding: 0 14px;
  border: 1px solid #d6e3ee;
  border-radius: 8px;
  background: #f6fbff;
}

.checkout-summary span {
  color: var(--muted);
  font-weight: 750;
}

.checkout-summary strong {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  color: var(--teal);
  font-size: 28px;
}

.checkout-summary s {
  color: #7b8794;
  font-size: 18px;
  font-weight: 750;
}

.buyer-form {
  display: grid;
  gap: 14px;
}

.country-checkout {
  display: grid;
  gap: 10px;
}

.country-checkout[hidden] {
  display: none;
}

label span {
  display: block;
  margin-bottom: 7px;
  color: #374151;
  font-size: 14px;
  font-weight: 800;
}

input,
select {
  width: 100%;
  min-height: 50px;
  padding: 0 13px;
  border: 1px solid #cfd7e3;
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  font: inherit;
}

select {
  appearance: none;
  padding-right: 38px;
  background-image:
    linear-gradient(45deg, transparent 50%, #526071 50%),
    linear-gradient(135deg, #526071 50%, transparent 50%);
  background-position:
    calc(100% - 19px) 22px,
    calc(100% - 13px) 22px;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

input:focus,
select:focus {
  outline: 3px solid rgba(185, 67, 49, 0.16);
  border-color: var(--accent);
}

.payment-area {
  margin-top: 20px;
}

.status-line {
  min-height: 26px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 14px;
}

.payment-note {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.payment-help {
  margin: 12px 0 0;
  padding: 12px 14px;
  border: 1px solid #d6e3ee;
  border-radius: 8px;
  background: #f6fbff;
  color: #374151;
  font-size: 13px;
  line-height: 1.45;
}

.payment-help[hidden] {
  display: none;
}

.payment-help a {
  color: #111827;
  font-weight: 800;
}

.country-alert,
.card-alert {
  margin: 0;
  padding: 12px 14px;
  color: #7f1d1d;
  background: #fff1ef;
  border: 1px solid #efb8b0;
  border-radius: 8px;
  font-size: 14px;
  line-height: 1.45;
}

.country-alert {
  margin-top: -4px;
}

.country-alert[hidden],
.card-alert[hidden] {
  display: none;
}

.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 18px 0;
  color: var(--muted);
  font-size: 13px;
}

.divider::before,
.divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

.card-section form {
  display: grid;
  gap: 12px;
}

.card-field {
  min-height: 50px;
  padding: 12px;
  border: 1px solid #cfd7e3;
  border-radius: 8px;
  background: #ffffff;
}

.card-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.checkout-note {
  margin: 16px 0 0;
  font-size: 13px;
}

.faq-band {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: 38px;
  align-items: start;
  background: #ffffff;
  border-top: 1px solid var(--line);
}

.faq-list {
  display: grid;
  gap: 10px;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.faq-list summary {
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 18px;
  color: var(--ink);
  font-weight: 850;
  cursor: pointer;
  list-style: none;
}

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

.faq-list summary::after {
  content: "+";
  color: var(--accent);
  font-size: 22px;
  line-height: 1;
}

.faq-list details[open] summary::after {
  content: "-";
}

.faq-list p {
  margin: 0;
  padding: 0 18px 18px;
  color: var(--muted);
}

.legal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px max(20px, calc((100vw - 1120px) / 2));
  background: #10151f;
  color: #ffffff;
}

.legal-footer strong,
.legal-footer span {
  display: block;
}

.legal-footer span {
  margin-top: 3px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 13px;
}

.legal-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.legal-footer a {
  color: rgba(255, 255, 255, 0.84);
  font-weight: 750;
  text-decoration: none;
}

.plain-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--paper);
}

.message-page,
.download-page,
.free-page {
  width: min(720px, 100%);
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.free-page {
  display: grid;
  gap: 20px;
}

.free-form,
.purchase-survey {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.free-form label,
.purchase-survey label {
  display: grid;
  gap: 7px;
  color: var(--ink);
  font-weight: 750;
}

.free-form input[type="email"] {
  width: 100%;
  min-height: 54px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 14px;
  font: inherit;
}

.free-ready {
  display: grid;
  gap: 12px;
  margin-top: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.free-ready[hidden] {
  display: none;
}

.purchase-survey {
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.purchase-survey h2 {
  font-size: 24px;
}

.purchase-survey fieldset {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.purchase-survey legend {
  padding: 0 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 850;
}

.purchase-survey label {
  grid-template-columns: auto 1fr;
  align-items: center;
  min-height: 34px;
  font-size: 15px;
}

.purchase-survey input {
  width: 18px;
  height: 18px;
}

.survey-status,
.form-status {
  min-height: 22px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.download-list {
  display: grid;
  gap: 10px;
  margin: 28px 0;
}

.download-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 58px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-decoration: none;
  background: #fcfdff;
}

.download-item strong {
  color: var(--teal);
}

.preview-modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 12px;
  padding: 14px;
  background: #0b111d;
  color: #ffffff;
}

.preview-modal[hidden] {
  display: none;
}

.preview-topbar,
.preview-actions {
  width: min(960px, 100%);
  margin: 0 auto;
}

.preview-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 48px;
}

.preview-topbar strong,
.preview-topbar span {
  display: block;
}

.preview-topbar strong {
  font-size: 16px;
}

.preview-topbar span {
  color: rgba(255, 255, 255, 0.68);
  font-size: 13px;
}

.icon-button,
.nav-button {
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  font: inherit;
  font-weight: 850;
  cursor: pointer;
}

.icon-button {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  font-size: 0;
  line-height: 1;
}

.icon-button::before {
  content: "\00d7";
  font-size: 30px;
}

.preview-stage {
  width: min(960px, 100%);
  min-height: 0;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr) 54px;
  gap: 12px;
  align-items: center;
}

.nav-button {
  width: 54px;
  height: 72px;
  border-radius: 8px;
  font-size: 0;
}

.nav-button::before {
  font-size: 42px;
  line-height: 1;
}

.nav-button.prev::before {
  content: "\2039";
}

.nav-button.next::before {
  content: "\203a";
}

.preview-card {
  min-width: 0;
  max-height: 100%;
  margin: 0;
  display: grid;
  grid-template-columns: minmax(220px, 420px) minmax(240px, 1fr);
  gap: 20px;
  align-items: center;
  justify-content: center;
}

.preview-card.is-topics,
.preview-card.is-audio,
.preview-card.is-quiz,
.preview-card.is-final {
  grid-template-columns: minmax(0, 720px);
}

.preview-card .visual-slide-card {
  min-height: min(620px, 72vh);
  max-height: min(620px, 72vh);
  overflow: hidden;
  width: 100%;
}

.preview-card img {
  width: 100%;
  max-height: 72vh;
  object-fit: contain;
  border-radius: 8px;
  background: #fff4df;
  box-shadow: 0 22px 70px rgba(0, 0, 0, 0.36);
}

.preview-copy {
  max-width: 440px;
}

.preview-copy strong {
  display: block;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.04;
}

.preview-copy span {
  display: block;
  margin-top: 14px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
  line-height: 1.5;
}

.preview-note {
  display: block;
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 14px;
  line-height: 1.45;
}

.preview-actions {
  display: grid;
  grid-template-columns: 1fr;
  justify-items: center;
  gap: 10px;
  padding-bottom: max(0px, env(safe-area-inset-bottom));
}

.preview-actions[hidden] {
  display: none;
}

.preview-actions .button-link {
  width: min(420px, 100%);
}

body.preview-open {
  overflow: hidden;
}

body.preview-open .sticky-cta {
  display: none;
}

.sticky-cta {
  position: fixed;
  right: 14px;
  bottom: 14px;
  left: 14px;
  z-index: 30;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 64px;
  padding: 10px 10px 10px 14px;
  border: 1px solid rgba(16, 21, 31, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 12px 30px rgba(16, 21, 31, 0.18);
  transform: translateY(120%);
  opacity: 0;
  pointer-events: none;
  transition: transform 180ms ease, opacity 180ms ease;
}

.sticky-cta strong,
.sticky-cta span {
  display: block;
}

.sticky-cta strong {
  font-size: 14px;
}

.sticky-cta span {
  color: var(--muted);
  font-size: 12px;
}

.sticky-cta.is-hidden {
  transform: translateY(120%);
  opacity: 0;
  pointer-events: none;
}

.sticky-cta.is-ready {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.sticky-cta.is-ready.is-hidden {
  transform: translateY(120%);
  opacity: 0;
  pointer-events: none;
}

.sticky-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 92px;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 8px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 850;
  text-decoration: none;
}

/* Visual refresh: keep the new funnel, bring back the softer choose-book feel. */
.landing {
  background: linear-gradient(180deg, #eef6e8 0%, #f8faf5 18%, #ffffff 100%);
}

.hero {
  grid-template-columns: minmax(0, 0.92fr) minmax(250px, 360px);
  gap: clamp(22px, 4vw, 48px);
  background:
    radial-gradient(ellipse at 20% 10%, rgba(91, 168, 84, 0.12) 0%, rgba(91, 168, 84, 0.02) 42%, transparent 62%),
    linear-gradient(180deg, #eef6e8 0%, #f8faf5 100%);
  border-bottom-color: #dce8d6;
}

.hero-copy {
  padding: 22px 0;
}

.hero .eyebrow,
.product-offer-card .eyebrow,
.final-cta-band .eyebrow {
  color: #2f8f47;
}

.lead {
  color: #4f634a;
}

.hero-visual {
  position: relative;
  width: min(100%, 340px);
  justify-self: center;
}

.hero-visual picture {
  display: block;
}

.hero-visual img {
  width: 100%;
  max-height: 540px;
  object-fit: contain;
  border-radius: 18px;
  background: #fffaf4;
  box-shadow: 0 14px 35px rgba(36, 114, 58, 0.12), 0 0 0 1px rgba(36, 114, 58, 0.08);
}

.hero-preview-overlay {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 18px;
  min-height: 52px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  background: rgba(30, 42, 35, 0.74);
  color: #ffffff;
  font: inherit;
  font-weight: 850;
  cursor: pointer;
  backdrop-filter: blur(8px);
}

.button-link,
.primary-button,
.sticky-button {
  background: linear-gradient(135deg, #2d7f36 0%, #3ca64a 100%);
  box-shadow: 0 8px 22px rgba(47, 143, 71, 0.22);
}

.button-link:hover,
.primary-button:hover,
.sticky-button:hover {
  background: linear-gradient(135deg, #24723a 0%, #2f8f47 100%);
}

.secondary-button {
  border-color: #d8ccbb;
  color: #1a1a2e;
  box-shadow: 0 6px 18px rgba(36, 114, 58, 0.08), inset 0 -2px 0 rgba(16, 21, 31, 0.06);
}

.proof-row span {
  border-color: rgba(47, 143, 71, 0.18);
  background: #ffffff;
  color: #4f634a;
}

.product-offer-band {
  background: linear-gradient(180deg, #f8faf5 0%, #eef6e8 100%);
}

.product-offer-card {
  width: min(720px, 100%);
  margin: 0 auto;
  grid-template-columns: 1fr;
  gap: 16px;
  border-color: rgba(47, 143, 71, 0.28);
  border-top: 7px solid #2f8f47;
  border-radius: 18px;
  box-shadow: 0 16px 44px rgba(47, 143, 71, 0.13);
}

.product-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.product-title-row .eyebrow {
  margin-bottom: 5px;
}

.product-copy h2 {
  font-size: clamp(28px, 3.6vw, 38px);
  line-height: 1.08;
}

.pages-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, #2d7f36, #3ca64a);
  color: #ffffff;
  font-size: 14px;
  font-weight: 850;
  white-space: nowrap;
  box-shadow: 0 5px 16px rgba(47, 143, 71, 0.25);
}

.product-subcopy {
  margin-top: 10px;
  color: #4f634a;
  font-size: 17px;
  font-weight: 650;
}

.price-stack {
  order: 1;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 14px;
  padding: 8px 0 2px;
}

.price-stack div {
  padding: 0;
  border: 0;
  background: transparent;
}

.price-stack div:first-child strong {
  color: #8b8f8a;
  text-decoration: line-through;
  font-size: clamp(28px, 5vw, 38px);
}

.price-stack div:last-child {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 39px;
  padding: 0 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, #df7444, #f0915e);
  box-shadow: 0 5px 16px rgba(223, 116, 68, 0.2);
}

.price-stack div:last-child strong {
  margin-top: 0;
  color: #ffffff;
  font-size: 17px;
}

.price-stack .is-current {
  background: transparent;
  border: 0;
}

.price-stack .is-current strong {
  color: #2f8f47;
  font-size: clamp(48px, 9vw, 66px);
  letter-spacing: -0.03em;
}

.price-stack div:last-child span {
  color: #ffffff;
  font-size: 16px;
}

.book-row-list {
  order: 2;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 18px;
}

.book-row-list div {
  position: relative;
  min-height: 52px;
  justify-content: flex-start;
  padding: 0;
  border: 0;
  border-bottom: 1px solid rgba(47, 143, 71, 0.12);
  border-radius: 0;
  background: transparent;
}

.book-row-list div::before,
.bundle-checklist span::before,
.offer-included-list li::before {
  border-color: #2f8f47;
}

.book-row-list div::before,
.offer-included-list li::before {
  content: "";
  width: 7px;
  height: 13px;
  margin: 0 14px 0 4px;
  border-right: 3px solid #2f8f47;
  border-bottom: 3px solid #2f8f47;
  transform: rotate(42deg);
  flex: 0 0 auto;
}

.book-row-list span,
.offer-included-list span {
  width: 145px;
  color: #4f634a;
  font-weight: 700;
}

.book-row-list strong,
.offer-included-list strong {
  padding-left: 17px;
  border-left: 2px solid #2f8f47;
  color: #2d7f36;
  text-align: left;
}

.offer-included-list span {
  width: 112px;
}

.offer-included-list strong {
  flex: 1;
}

.offer-included-list {
  order: 3;
  display: grid;
  gap: 0;
  list-style: none;
}

.offer-included-list li {
  display: flex;
  align-items: center;
  min-height: 52px;
  border-bottom: 1px solid rgba(47, 143, 71, 0.12);
}

.offer-included-list li:last-child,
.book-row-list div:last-child {
  border-bottom: 0;
}

.product-actions {
  order: 4;
}

.inside-band,
.features-band,
.trust-band,
.faq-band {
  background: #ffffff;
}

.content-map-band {
  background: #f8faf5;
}

.slang-band {
  background: #fffaf4;
}

.final-cta-band {
  background: linear-gradient(135deg, #2d7f36 0%, #3ca64a 100%);
}

.final-cta-band .button-link {
  background: #ffffff;
  color: #24723a;
  box-shadow: 0 8px 22px rgba(16, 21, 31, 0.16);
}

.final-cta-band .button-link:hover {
  background: #f8faf5;
}

.sticky-cta {
  border-color: rgba(47, 143, 71, 0.18);
  border-radius: 16px;
}

.sticky-cta strong {
  color: #1a1a2e;
}

@media (max-width: 940px) {
  .hero,
  .insight-band,
  .sample-band,
  .inside-band,
  .why-band,
  .product-offer-band,
  .content-map-band,
  .slang-band,
  .features-band,
  .final-cta-band,
  .bundle-band,
  .trust-band,
  .checkout-band,
  .faq-band {
    padding: 36px 20px;
  }

  .insight-band,
  .sample-band,
  .inside-band,
  .why-band,
  .content-map-band,
  .slang-band,
  .features-band,
  .checkout-band,
  .faq-band {
    grid-template-columns: 1fr;
  }

  .section-heading {
    position: static;
  }

  .total-line {
    grid-column: auto;
  }

  .section-cta-row,
  .slang-chips,
  .included-line {
    grid-column: auto;
  }

  .insight-grid,
  .level-grid,
  .why-grid,
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .hero-copy {
    width: min(640px, 100%);
  }
}

@media (max-width: 680px) {
  body {
    padding-bottom: 82px;
  }

  h1 {
    font-size: 31px;
    line-height: 1.1;
    text-align: center;
  }

  h2 {
    font-size: 31px;
  }

  .hero {
    min-height: auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    align-items: start;
    padding-top: 20px;
    padding-bottom: 28px;
  }

  .hero-copy {
    width: 100%;
    padding: 0;
    display: contents;
  }

  .hero .eyebrow {
    order: 1;
    margin: 0 0 2px;
    text-align: center;
    font-size: 12px;
  }

  .hero h1 {
    order: 2;
    justify-self: center;
    max-width: 340px;
  }

  .hero .lead {
    order: 3;
    justify-self: center;
    margin-top: 6px;
    max-width: 350px;
    text-align: center;
    font-size: 17px;
    line-height: 1.42;
  }

  .hero-visual {
    order: 4;
    width: min(275px, 78vw);
    margin-top: 8px;
  }

  .hero-visual img {
    width: 100%;
    aspect-ratio: auto;
    max-height: 405px;
    object-fit: contain;
    border-radius: 16px;
  }

  .hero-preview-overlay {
    left: 13px;
    right: 13px;
    bottom: 13px;
    min-height: 48px;
    font-size: 14px;
  }

  .hero-actions,
  .hero-actions .button-link,
  .hero-actions .secondary-button,
  .bundle-cta,
  .bundle-cta .button-link {
    width: 100%;
  }

  .hero-actions {
    order: 5;
    display: grid;
    gap: 10px;
    margin-top: 8px;
  }

  .hero-actions .button-link,
  .hero-actions .secondary-button {
    min-height: 56px;
  }

  .proof-row {
    order: 6;
    display: flex;
    justify-content: center;
    margin-top: 0;
  }

  .proof-row span {
    min-height: 31px;
    font-size: 12px;
  }

  .insight-grid,
  .level-grid,
  .why-grid,
  .feature-grid,
  .trust-band,
  .card-row {
    grid-template-columns: 1fr;
  }

  .product-offer-card {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 17px;
    border-radius: 18px;
  }

  .product-copy h2 {
    font-size: 30px;
  }

  .book-row-list,
  .price-stack {
    grid-template-columns: 1fr;
  }

  .price-stack {
    order: 1;
  }

  .product-actions,
  .product-actions .button-link,
  .product-actions .secondary-button,
  .section-cta-row .button-link,
  .final-cta-band .button-link {
    width: 100%;
  }

  .content-map-band,
  .slang-band,
  .features-band {
    gap: 20px;
  }

  .topic-list {
    grid-template-columns: 1fr;
  }

  .topic-book > summary {
    align-items: flex-start;
  }

  .topic-level-badge {
    width: 38px;
    height: 32px;
  }

  .slang-carousel {
    display: flex;
    gap: 10px;
    margin-right: -20px;
    padding-right: 20px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
  }

  .slang-carousel img {
    width: min(72vw, 290px);
    height: min(430px, 62vh);
    flex: 0 0 min(72vw, 290px);
    scroll-snap-align: start;
  }

  .feature-grid article {
    min-height: 0;
    padding: 18px;
  }

  .final-cta-band {
    display: grid;
  }

  .preview-proof {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 7px;
  }

  .preview-proof img {
    height: min(260px, 42vh);
  }

  .level-card {
    display: grid;
    grid-template-columns: 108px 1fr;
    min-height: 158px;
  }

  .level-card img {
    height: 100%;
    aspect-ratio: auto;
  }

  .bundle-summary-card {
    padding: 17px;
  }

  .bundle-summary-top {
    display: grid;
    gap: 14px;
  }

  .bundle-summary-card h3 {
    font-size: 30px;
  }

  .bundle-price {
    min-width: 0;
    text-align: left;
  }

  .bundle-checklist {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .bundle-cta {
    display: grid;
  }

  .testimonial {
    padding: 20px;
  }

  .reviewer-header {
    grid-template-columns: 58px minmax(0, 1fr) auto;
    gap: 12px;
    margin-bottom: 16px;
  }

  .reviewer-header img {
    width: 58px;
    height: 58px;
  }

  .reviewer-info cite {
    font-size: 18px;
  }

  .reviewer-info span {
    font-size: 14px;
  }

  .review-rating {
    font-size: 14px;
  }

  .insight-band {
    gap: 20px;
  }

  .insight-grid {
    gap: 10px;
  }

  .insight-grid article {
    min-height: auto;
    padding: 18px;
  }

  .insight-grid strong {
    font-size: 19px;
  }

  .insight-grid p {
    margin: 10px 0 0;
  }

  .sample-band {
    gap: 20px;
  }

  .level-gallery {
    margin: 0 -4px;
    padding: 10px;
  }

  .gallery-frame img {
    height: min(455px, 66vh);
  }

  .gallery-nav {
    width: 36px;
    height: 48px;
    background: rgba(255, 255, 255, 0.86);
    box-shadow: 0 8px 18px rgba(16, 21, 31, 0.12);
  }

  .gallery-nav.prev {
    left: 4px;
  }

  .gallery-nav.next {
    right: 4px;
  }

  .gallery-nav::before {
    font-size: 30px;
  }

  .gallery-slide {
    min-height: min(455px, 66vh);
  }

  .visual-slide-card {
    min-height: min(455px, 66vh);
    padding: 18px;
  }

  .visual-slide-card h3 {
    font-size: 30px;
  }

  .gallery-slide.is-topics .visual-slide-card,
  .gallery-slide.is-audio .visual-slide-card,
  .gallery-slide.is-quiz .visual-slide-card,
  .gallery-slide.is-final .visual-slide-card {
    padding-left: 38px;
    padding-right: 38px;
  }

  .topic-grid,
  .quiz-options {
    gap: 8px;
  }

  .topic-item {
    min-height: 92px;
    padding: 10px;
  }

  .audio-file {
    grid-template-columns: 34px minmax(0, 1fr);
  }

  .audio-file small {
    grid-column: 2;
  }

  .checkout-panel,
  .message-page,
  .download-page {
    padding: 18px;
  }

  .download-item {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 13px 15px;
  }

  .preview-modal {
    gap: 8px;
    padding: 10px;
  }

  .preview-stage {
    position: relative;
    grid-template-columns: 1fr;
  }

  .nav-button {
    position: absolute;
    top: 50%;
    z-index: 3;
    display: block;
    width: 40px;
    height: 58px;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.16);
    backdrop-filter: blur(8px);
  }

  .nav-button.prev {
    left: 0;
  }

  .nav-button.next {
    right: 0;
  }

  .preview-card {
    grid-template-columns: 1fr;
    gap: 10px;
    align-content: center;
    padding: 0 36px;
  }

  .preview-card img {
    width: min(100%, 340px);
    height: min(500px, 58vh);
    max-height: min(500px, 58vh);
    margin: 0 auto;
    object-fit: contain;
  }

  .preview-card .visual-slide-card {
    width: min(100%, 340px);
    height: min(500px, 58vh);
    min-height: 0;
    max-height: min(500px, 58vh);
    margin: 0 auto;
    padding: 18px;
    justify-content: center;
  }

  .preview-card .visual-slide-card h3 {
    font-size: 26px;
  }

  .preview-card .visual-slide-card p {
    font-size: 14px;
    line-height: 1.42;
  }

  .preview-card.is-final .visual-slide-card {
    gap: 12px;
    justify-content: center;
  }

  .preview-card.is-audio .visual-slide-card {
    gap: 8px;
    justify-content: flex-start;
  }

  .preview-card.is-audio .visual-slide-card h3 {
    font-size: 30px;
    line-height: 1.02;
  }

  .preview-card.is-audio .visual-slide-card p {
    font-size: 13px;
    line-height: 1.32;
  }

  .preview-card.is-audio .audio-files {
    gap: 6px;
  }

  .preview-card.is-audio .audio-file {
    min-height: 52px;
    padding: 7px 9px;
  }

  .preview-card.is-audio .audio-icon {
    width: 30px;
    height: 30px;
  }

  .preview-card.is-audio .audio-icon::before {
    left: 11px;
    top: 8px;
    border-top-width: 7px;
    border-bottom-width: 7px;
    border-left-width: 10px;
  }

  .preview-card.is-audio .audio-file.is-playing .audio-icon::before {
    left: 10px;
    top: 7px;
  }

  .preview-card.is-audio .audio-file strong {
    font-size: 13px;
    line-height: 1.12;
  }

  .topic-grid {
    gap: 7px;
  }

  .topic-item {
    min-height: 78px;
    padding: 9px;
  }

  .topic-item strong {
    width: 34px;
    height: 29px;
    font-size: 14px;
  }

  .topic-item small,
  .inside-note,
  .audio-file small {
    font-size: 12px;
  }

  .preview-copy {
    max-width: none;
    text-align: center;
  }

  .preview-copy strong {
    font-size: 23px;
  }

  .preview-copy span {
    margin-top: 7px;
    font-size: 14px;
  }

  .preview-note {
    margin-top: 7px;
    font-size: 12px;
  }

  .preview-actions {
    grid-template-columns: 1fr;
  }

  .preview-actions .button-link {
    grid-column: auto;
  }

  .sticky-cta {
    display: flex;
    min-height: 56px;
    padding: 8px 8px 8px 12px;
  }

  .legal-footer {
    align-items: flex-start;
    flex-direction: column;
    padding: 22px 20px 96px;
  }
}

@media (max-width: 380px) {
  h1 {
    font-size: 37px;
  }

  h2 {
    font-size: 30px;
  }

  .hero-copy {
    padding-top: 0;
  }

}