:root {
  --navy: #14324a;
  --teal: #2f8f8a;
  --teal-dark: #24736f;
  --mint: #dff1ed;
  --paper: #f8fbfa;
  --warm: #f1bd5a;
  --cream: #fff8e9;
  --graphite: #263238;
  --muted: #63757a;
  --line: #d9e6e3;
  --white: #ffffff;
  --shadow: 0 18px 45px rgba(20, 50, 74, 0.12);
  --radius: 8px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #eef5f3;
  color: var(--graphite);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
  overflow-x: hidden;
}

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

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 16px max(24px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(248, 251, 250, 0.96);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--navy);
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 2px solid var(--teal);
  border-radius: 6px;
  color: var(--teal);
  font-family: Georgia, "Times New Roman", serif;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--navy);
  font-size: 14px;
  font-weight: 700;
}

.top-nav a {
  text-decoration: none;
}

.top-nav a:hover,
.text-link:hover {
  color: var(--teal-dark);
}

.hero,
.section,
.band,
.site-footer,
.legal-page {
  max-width: var(--max);
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, 0.72fr);
  gap: 56px;
  align-items: center;
  padding: 72px 24px 48px;
}

.hero > * {
  min-width: 0;
}

.hero-content {
  min-width: 0;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 16px;
  padding: 7px 12px;
  border: 1.5px solid var(--teal);
  border-left-width: 6px;
  border-radius: 6px;
  background: var(--white);
  color: var(--teal-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--navy);
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

h1,
h2 {
  font-family: Georgia, "Times New Roman", serif;
}

h1 {
  max-width: 780px;
  font-size: clamp(42px, 6vw, 76px);
  line-height: 1.02;
}

h2 {
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.08;
}

h3 {
  font-size: 19px;
  line-height: 1.25;
}

.lead {
  max-width: 700px;
  margin: 24px 0 0;
  color: #41545a;
  font-size: 20px;
  line-height: 1.55;
}

.hero-actions,
.sample-section,
.checkout-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.hero-actions {
  margin-top: 32px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border: 1.5px solid transparent;
  border-radius: 7px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 0.16s ease, background 0.16s ease, border-color 0.16s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: var(--navy);
  color: var(--white);
}

.button.primary:hover {
  background: #0f283d;
}

.button.secondary {
  border-color: var(--teal);
  background: var(--white);
  color: var(--teal-dark);
}

.button.secondary.dark {
  background: var(--teal);
  color: var(--white);
}

.button.ghost {
  border-color: var(--line);
  background: var(--paper);
  color: var(--navy);
}

.button.wide {
  width: 100%;
}

.trust-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 18px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  color: var(--navy);
  font-weight: 700;
}

.trust-list li::before,
.included-list li::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 9px;
  border-radius: 50%;
  background: var(--warm);
}

.product-preview {
  width: 100%;
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.product-preview img {
  width: 100%;
  min-width: 0;
  border-radius: 4px;
}

.band {
  padding: 0 24px 24px;
}

.principle {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 18px;
  align-items: center;
  padding: 18px 22px;
  border-left: 7px solid var(--teal);
  border-radius: var(--radius);
  background: var(--cream);
}

.principle span {
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.principle strong {
  color: var(--navy);
  font-size: 20px;
}

.education-motifs {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px 24px 42px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 20px;
  align-items: stretch;
}

.chalkboard {
  position: relative;
  min-height: 144px;
  padding: 24px 28px;
  border: 8px solid #d7b36a;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.05), transparent 42%),
    #163f3c;
  box-shadow: var(--shadow);
  color: #f2fbf8;
  overflow: hidden;
}

.chalkboard::after {
  content: "";
  position: absolute;
  right: 26px;
  bottom: 16px;
  width: 82px;
  height: 7px;
  border-radius: 999px;
  background: #f4f1e8;
  box-shadow: -34px 0 0 #f1bd5a;
  opacity: 0.88;
}

.chalk-label {
  display: block;
  margin-bottom: 10px;
  color: #bfe2dc;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.chalkboard strong {
  display: block;
  max-width: 680px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.15;
  letter-spacing: 0;
}

.chalk-lines {
  display: grid;
  gap: 8px;
  width: 220px;
  margin-top: 20px;
}

.chalk-lines span {
  height: 3px;
  border-radius: 999px;
  background: rgba(242, 251, 248, 0.55);
}

.chalk-lines span:nth-child(2) {
  width: 72%;
}

.chalk-lines span:nth-child(3) {
  width: 48%;
}

.school-tools {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.tool-icon,
.card-icon {
  position: relative;
  display: inline-block;
  width: 54px;
  height: 54px;
  border: 1.5px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 24px rgba(20, 50, 74, 0.08);
}

.tool-icon {
  width: 100%;
  height: auto;
  min-height: 144px;
}

.book-icon::before,
.notebook-icon::before,
.lesson-icon::before {
  content: "";
  position: absolute;
  inset: 14px 16px 14px 18px;
  border: 3px solid var(--teal);
  border-left: 8px solid var(--teal);
  border-radius: 4px;
  background: linear-gradient(#ffffff 0 0) padding-box;
}

.book-icon::after,
.notebook-icon::after,
.lesson-icon::after {
  content: "";
  position: absolute;
  left: 28px;
  right: 18px;
  top: 32px;
  height: 3px;
  border-radius: 999px;
  background: var(--warm);
  box-shadow: 0 10px 0 var(--line), 0 20px 0 var(--line);
}

.ruler-icon::before {
  content: "";
  position: absolute;
  left: 18%;
  right: 18%;
  top: 50%;
  height: 18px;
  border-radius: 4px;
  background: var(--warm);
  transform: rotate(-22deg);
}

.ruler-icon::after {
  content: "";
  position: absolute;
  left: 31%;
  top: 44%;
  width: 38%;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--navy) 0 2px, transparent 2px 8px);
  transform: rotate(-22deg);
}

.checklist-icon::before,
.prompt-icon::before,
.folder-icon::before {
  content: "";
  position: absolute;
  inset: 14px 13px;
  border: 3px solid var(--teal);
  border-radius: 5px;
  background: #ffffff;
}

.checklist-icon::after,
.prompt-icon::after {
  content: "";
  position: absolute;
  left: 25px;
  right: 16px;
  top: 22px;
  height: 3px;
  border-radius: 999px;
  background: var(--navy);
  box-shadow: 0 10px 0 var(--navy), 0 20px 0 var(--navy);
}

.board-icon::before {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  top: 13px;
  bottom: 17px;
  border: 3px solid #d7b36a;
  border-radius: 4px;
  background: #163f3c;
}

.board-icon::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 12px;
  height: 3px;
  border-radius: 999px;
  background: var(--navy);
}

.speech-icon::before {
  content: "";
  position: absolute;
  inset: 13px 10px 18px;
  border: 3px solid var(--teal);
  border-radius: 8px;
  background: #ffffff;
}

.speech-icon::after {
  content: "";
  position: absolute;
  left: 20px;
  bottom: 13px;
  width: 12px;
  height: 12px;
  border-left: 3px solid var(--teal);
  border-bottom: 3px solid var(--teal);
  transform: skewX(-22deg);
}

.chalk-icon::before {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  top: 25px;
  height: 8px;
  border-radius: 999px;
  background: #f4f1e8;
  box-shadow: 0 11px 0 var(--warm);
}

.shield-icon::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 11px;
  width: 22px;
  height: 28px;
  border: 3px solid var(--teal);
  border-radius: 12px 12px 16px 16px;
  background: #ffffff;
}

.shield-icon::after {
  content: "";
  position: absolute;
  left: 26px;
  top: 21px;
  width: 12px;
  height: 7px;
  border-left: 3px solid var(--navy);
  border-bottom: 3px solid var(--navy);
  transform: rotate(-45deg);
}

.folder-icon::before {
  top: 18px;
}

.folder-icon::after {
  content: "";
  position: absolute;
  left: 14px;
  top: 14px;
  width: 17px;
  height: 8px;
  border-radius: 4px 4px 0 0;
  background: var(--warm);
}

.card-icon {
  margin-bottom: 16px;
}

.section {
  padding: 58px 24px;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 28px;
}

.section-heading p:not(.eyebrow),
.video-copy p,
.purchase-copy p,
.sample-section p,
.legal-page p {
  color: #4f6469;
}

.split {
  display: grid;
  grid-template-columns: minmax(260px, 0.75fr) minmax(0, 1.25fr);
  gap: 36px;
  align-items: start;
}

.grid {
  display: grid;
  gap: 16px;
}

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

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

.requirements-grid {
  max-width: 760px;
}

.info-card,
.feature-grid article,
.checkout-box,
.video-panel,
.toc-section,
.sample-section,
.purchase,
.faq details,
.legal-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.info-card,
.feature-grid article,
.legal-card {
  padding: 22px;
}

.info-card p,
.feature-grid p {
  margin: 10px 0 0;
  color: #4f6469;
}

.feature-grid {
  display: grid;
  gap: 16px;
}

.feature-number {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--teal-dark);
  font-weight: 900;
}

.video-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 22px;
  padding: 18px;
  background: var(--white);
}

.video-panel video {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 6px;
  background: #10283a;
  object-fit: cover;
}

.video-copy {
  align-self: center;
}

.text-link {
  color: var(--teal-dark);
  font-weight: 800;
}

.toc-section {
  padding: 36px 24px;
}

.toc-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  padding: 20px;
  border-left: 7px solid var(--teal);
  background: var(--white);
}

.toc-columns ol {
  margin: 0;
  padding-left: 24px;
}

.toc-columns li {
  margin: 8px 0;
  color: var(--navy);
  font-weight: 700;
}

.sample-section,
.purchase {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  padding: 30px;
  background: var(--white);
}

.purchase {
  grid-template-columns: minmax(0, 1fr) 340px;
  align-items: stretch;
}

.included-list {
  display: grid;
  gap: 9px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  color: var(--navy);
  font-weight: 700;
}

.checkout-box {
  padding: 24px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.price-label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.price {
  display: block;
  margin: 6px 0 10px;
  color: var(--navy);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 48px;
  line-height: 1;
}

.checkout-box small {
  display: block;
  margin-top: 12px;
  color: var(--muted);
}

.checkout-form {
  display: grid;
  gap: 12px;
  margin: 18px 0 12px;
}

.checkout-form label {
  display: grid;
  gap: 6px;
  color: var(--navy);
  font-size: 14px;
  font-weight: 800;
}

.checkout-form input[type="email"],
.checkout-form input[type="text"],
.checkout-form textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  color: var(--graphite);
  font: inherit;
}

.checkout-form input[type="email"],
.checkout-form input[type="text"] {
  min-height: 44px;
}

.checkout-form textarea {
  resize: vertical;
}

.checkout-form input[type="email"]:focus,
.checkout-form input[type="text"]:focus,
.checkout-form textarea:focus {
  outline: 3px solid rgba(47, 143, 138, 0.18);
  border-color: var(--teal);
  background: var(--white);
}

.invoice-fields {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-left: 6px solid var(--teal);
  background: #f8fbfa;
}

.invoice-fields[hidden] {
  display: none;
}

.checkout-form .check-row {
  grid-template-columns: 20px 1fr;
  align-items: start;
  gap: 9px;
  color: #40565c;
  font-size: 13px;
  font-weight: 700;
}

.checkout-form input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
  accent-color: var(--teal);
}

.checkout-form button[disabled] {
  cursor: progress;
  opacity: 0.72;
}

.form-message {
  min-height: 20px;
  margin: 0;
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 800;
}

.form-message.error {
  color: #a43d2f;
}

.requirements {
  padding-top: 72px;
}

.faq details {
  margin: 12px 0;
  padding: 18px 20px;
  background: var(--white);
}

.faq summary {
  cursor: pointer;
  color: var(--navy);
  font-weight: 800;
}

.faq details p {
  margin: 12px 0 0;
  color: #4f6469;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 34px 24px 48px;
  border-top: 1px solid var(--line);
}

.site-footer strong {
  color: var(--navy);
}

.site-footer p {
  margin: 6px 0 0;
  color: var(--muted);
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  justify-content: flex-end;
  font-weight: 800;
}

.site-footer a {
  color: var(--navy);
  text-decoration: none;
}

.legal-page {
  padding: 48px 24px 72px;
}

.legal-header {
  margin-bottom: 28px;
}

.legal-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.legal-nav,
.legal-content {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.legal-nav {
  position: sticky;
  top: 82px;
  padding: 18px;
}

.legal-nav a {
  display: block;
  padding: 8px 0;
  color: var(--navy);
  font-weight: 800;
  text-decoration: none;
}

.legal-content {
  padding: 28px;
}

.legal-content h2 {
  margin-top: 32px;
  font-size: 30px;
}

.legal-content h2:first-child {
  margin-top: 0;
}

.contact-card {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 28px;
  align-items: center;
}

.publisher-logo {
  width: 180px;
  height: auto;
}

.placeholder {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--cream);
  color: #815b00;
  font-weight: 800;
}

@media (max-width: 900px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .top-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero {
    gap: 36px;
    padding-top: 54px;
  }

  .hero,
  .split,
  .video-panel,
  .sample-section,
  .purchase,
  .legal-layout,
  .education-motifs {
    grid-template-columns: 1fr;
  }

  .product-preview {
    max-width: 430px;
    justify-self: center;
  }

  .grid.two,
  .grid.three,
  .feature-grid,
  .toc-columns {
    grid-template-columns: 1fr;
  }

  .principle {
    grid-template-columns: 1fr;
  }

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

  .tool-icon {
    min-height: 104px;
  }

  .legal-nav {
    position: static;
  }

  .contact-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  body {
    background: #eef5f3;
  }

  .site-header,
  .hero,
  .section,
  .band,
  .site-footer,
  .legal-page {
    width: 100%;
    max-width: 100%;
  }

  .site-header {
    gap: 14px;
    padding: 14px 18px;
  }

  .brand {
    max-width: 100%;
    align-items: flex-start;
    font-size: 16px;
    line-height: 1.25;
  }

  .brand-mark {
    flex: 0 0 34px;
  }

  .top-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
    gap: 8px;
    font-size: 13px;
    overflow-x: visible;
  }

  .top-nav a {
    display: flex;
    min-height: 36px;
    min-width: 0;
    align-items: center;
    justify-content: center;
    padding: 7px 8px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: var(--white);
    text-align: center;
  }

  .hero {
    gap: 30px;
    padding-top: 40px;
    padding-bottom: 34px;
    overflow: hidden;
  }

  .hero-content,
  .lead,
  h1,
  .product-preview,
  .video-panel,
  .toc-section,
  .sample-section,
  .purchase,
  .checkout-box {
    width: 100%;
    max-width: 100%;
    min-width: 0;
  }

  .eyebrow {
    margin-bottom: 14px;
    padding: 6px 10px;
    font-size: 11px;
  }

  .trust-list {
    grid-template-columns: 1fr;
    gap: 9px;
    margin-top: 24px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
    margin-top: 28px;
  }

  .hero-actions .button {
    width: 100%;
    max-width: 100%;
  }

  h1 {
    font-size: 38px;
    line-height: 1.06;
  }

  h2 {
    font-size: 30px;
  }

  .lead {
    font-size: 18px;
  }

  .product-preview {
    max-width: 100%;
    padding: 16px;
  }

  .section {
    padding: 40px 18px;
  }

  .hero,
  .band,
  .education-motifs,
  .site-footer,
  .legal-page {
    padding-left: 18px;
    padding-right: 18px;
  }

  .sample-section,
  .purchase {
    gap: 20px;
    padding: 20px;
  }

  .principle {
    gap: 8px;
    padding: 16px;
  }

  .principle strong {
    font-size: 18px;
    line-height: 1.3;
  }

  .education-motifs {
    gap: 14px;
    padding-top: 8px;
    padding-bottom: 30px;
  }

  .chalkboard {
    min-height: 124px;
    padding: 20px;
    border-width: 6px;
  }

  .chalkboard strong {
    font-size: 25px;
  }

  .chalk-lines {
    width: 170px;
    margin-top: 16px;
  }

  .school-tools {
    gap: 8px;
  }

  .tool-icon {
    min-height: 86px;
  }

  .video-panel {
    padding: 14px;
  }

  .toc-section {
    padding: 24px 18px;
  }

  .toc-columns {
    gap: 12px;
    padding: 16px 14px 16px 10px;
  }

  .info-card,
  .feature-grid article,
  .legal-card {
    padding: 18px;
  }

  .checkout-box {
    padding: 20px;
  }

  .checkout-form .check-row {
    grid-template-columns: 22px 1fr;
    font-size: 13px;
    line-height: 1.45;
  }

  .legal-page {
    padding-top: 36px;
  }

  .legal-content {
    padding: 20px;
  }

  .legal-content h2 {
    font-size: 25px;
    line-height: 1.15;
  }

  .legal-nav {
    display: grid;
    grid-template-columns: 1fr;
    padding: 12px 16px;
  }

  .publisher-logo {
    width: 150px;
  }

  .site-footer nav {
    justify-content: flex-start;
  }
}

@media (max-width: 380px) {
  .site-header,
  .hero,
  .band,
  .education-motifs,
  .section,
  .site-footer,
  .legal-page {
    padding-left: 14px;
    padding-right: 14px;
  }

  .top-nav {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 34px;
  }

  .lead {
    font-size: 17px;
  }

  .price {
    font-size: 42px;
  }
}