/* Homepage only. Shared lesson styles and shared PHP includes are unchanged. */
.rm-home-notebook {
  --home-ink: #070d2d;
  --home-muted: #52617d;
  --home-blue: #064ee8;
  --home-rule: #e2e7ef;
  margin: 0;
  background: #fff;
  color: var(--home-ink);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
.rm-home-notebook a { text-underline-offset: .2em; }
.rm-home-notebook a:focus-visible,
.rm-home-notebook button:focus-visible { outline: 3px solid #0c55da; outline-offset: 5px; }
.rm-home-visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.rm-home-skip { position: absolute; top: 8px; left: 16px; transform: translateY(-180%); z-index: 9999; padding: 12px 16px; background: #fff; color: var(--home-ink); border: 2px solid var(--home-blue); }
.rm-home-skip:focus { transform: none; }

/* Reuse the live navbar/contact markup, with a homepage-specific white theme. */
.rm-home-notebook .rm-site-navbar { background: #fff; color: var(--home-ink); box-shadow: none; border-bottom: 1px solid var(--home-rule); }
.rm-home-notebook .rm-navbar-inner { max-width: 1536px; min-height: 76px; padding: 12px clamp(22px, 4.4vw, 68px); gap: 16px; flex-wrap: wrap; }
.rm-home-notebook .rm-navbar-brand { gap: 12px; color: var(--home-ink); flex-shrink: 0; }
.rm-home-notebook .rm-navbar-logo { width: 54px; height: 46px; object-fit: contain; flex: 0 0 auto; }
.rm-home-notebook .rm-navbar-title { color: var(--home-ink); font-size: clamp(19px, 1.8vw, 28px); font-weight: 750; letter-spacing: -.045em; white-space: nowrap; }
.rm-home-notebook .rm-navbar-subtitle { display: none; }
.rm-home-notebook .rm-navbar-inner > nav { width: auto; min-width: 0; }
.rm-home-notebook .rm-navbar-links { gap: 0; flex-wrap: wrap; justify-content: flex-end; overflow: visible; }
.rm-home-notebook .rm-navbar-links a { padding: 11px 9px; border-radius: 5px; color: var(--home-ink); font-size: 13px; font-weight: 650; min-height: 42px; }
.rm-home-notebook .rm-navbar-links a:hover,
.rm-home-notebook .rm-navbar-links a.is-active { color: #0343bd; background: #f0f5ff; }
.rm-home-notebook .rm-navbar-links a.rm-contact { border: 1px solid #e0e6ee; background: transparent; color: var(--home-ink); padding-inline: 12px; }
.rm-home-notebook .rm-navbar-links a.rm-contact:hover { background: #f0f5ff; }

.rm-notebook-hero { max-width: 1536px; margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: center; border-bottom: 1px solid var(--home-rule); }
.rm-notebook-copy { min-width: 0; padding: 64px 24px 66px clamp(24px, 5vw, 77px); }
.rm-notebook-kicker { margin: 0 0 34px; font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .26em; color: #2a437c; }
.rm-notebook-copy h1 { margin: 0; font-size: clamp(42px, 5.4vw, 82px); line-height: 1.025; letter-spacing: -.06em; color: var(--home-ink); }
.rm-notebook-title-main { display: block; font-weight: 800; }
.rm-notebook-title-next { display: block; font-weight: 400; }
.rm-notebook-intro { max-width: 620px; margin: 28px 0 0; color: var(--home-muted); font-size: clamp(18px, 1.75vw, 26px); line-height: 1.48; letter-spacing: -.025em; }
.rm-notebook-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 32px; }
.rm-notebook-button { display: inline-flex; align-items: center; justify-content: center; gap: 16px; padding: 17px 24px; min-height: 56px; border: 1px solid #bac8e3; border-radius: 5px; text-decoration: none; color: var(--home-ink); background: #fff; font-weight: 650; font-size: clamp(15px, 1.3vw, 20px); transition: background-color .15s ease, border-color .15s ease; }
.rm-notebook-button:hover { background: #f4f7ff; border-color: #7695ce; }
.rm-notebook-primary { background: var(--home-blue); border-color: var(--home-blue); color: #fff; }
.rm-notebook-primary:hover { background: #0340c2; border-color: #0340c2; }
.rm-notebook-art { width: 100%; min-width: 0; margin: 0; align-self: stretch; display: flex; align-items: center; background: #fafbfc; }
.rm-notebook-art img { display: block; width: 100%; height: auto; object-fit: contain; }

.rm-notebook-courses { max-width: 1536px; margin: auto; padding: 38px clamp(24px, 5vw, 77px) 34px; }
.rm-notebook-course-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.rm-notebook-course { display: flex; flex-direction: column; min-width: 0; padding: 0 36px; color: var(--home-ink); text-decoration: none; border-left: 1px solid var(--home-rule); }
.rm-notebook-course:first-child { padding-left: 0; border-left: 0; }
.rm-notebook-course:last-child { padding-right: 0; }
.rm-notebook-course-badge { display: flex; flex-direction: column; align-items: center; justify-content: center; width: 68px; height: 68px; border-radius: 7px; font-weight: 800; font-size: 25px; line-height: 1.03; margin-bottom: 16px; }
.rm-notebook-ai { --course-color: #075a2d; --course-bg: #d8eddb; }
.rm-notebook-aasl { --course-color: #064edb; --course-bg: #dbebff; }
.rm-notebook-aahl { --course-color: #630cb7; --course-bg: #efdcff; }
.rm-notebook-course-badge { color: var(--course-color); background: var(--course-bg); }
.rm-notebook-course h3 { margin: 0 0 12px; font-size: clamp(20px, 1.65vw, 25px); line-height: 1.23; letter-spacing: -.04em; font-weight: 750; }
.rm-notebook-course p { margin: 0 0 20px; color: var(--home-muted); font-size: 18px; line-height: 1.48; letter-spacing: -.018em; }
.rm-notebook-course-link { margin-top: auto; color: var(--course-color); font-weight: 650; font-size: 17px; }
.rm-notebook-course:hover .rm-notebook-course-link { text-decoration: underline; }

.rm-notebook-resources { max-width: 1536px; margin: auto; padding: 28px clamp(24px, 5vw, 77px) 56px; }
.rm-notebook-resources > h2 { font-size: 25px; margin: 0 0 20px; letter-spacing: -.03em; }
.rm-notebook-resource-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.rm-notebook-resource-grid > a { padding: 22px; border: 1px solid var(--home-rule); border-radius: 8px; color: var(--home-ink); text-decoration: none; display: flex; flex-direction: column; }
.rm-notebook-resource-grid h3 { margin: 0 0 9px; font-size: 20px; letter-spacing: -.02em; }
.rm-notebook-resource-grid p { margin: 0 0 18px; color: var(--home-muted); font-size: 16px; line-height: 1.55; }
.rm-notebook-resource-grid > a > span { color: #16489b; font-weight: 650; margin-top: auto; }
.rm-notebook-resource-grid > a:hover { background: #f8faff; border-color: #aebfda; }
.rm-home-notebook .rm-site-footer { margin-top: 0; background: #f7f9fc; color: var(--home-ink); border-top: 1px solid var(--home-rule); }
.rm-home-notebook .rm-footer-inner { max-width: 1536px; padding: 30px clamp(24px, 5vw, 77px); }
.rm-home-notebook .rm-footer-inner a { color: #16489b; }
.rm-home-notebook .rm-footer-inner p,
.rm-home-notebook .rm-footer-inner span { color: var(--home-muted); }

@media (min-width: 1537px) { .rm-notebook-hero { border-inline: 1px solid #f6f7f9; } }
@media (max-width: 1150px) {
  .rm-home-notebook .rm-navbar-inner { gap: 12px; }
  .rm-home-notebook .rm-navbar-inner > nav { width: 100%; }
  .rm-home-notebook .rm-navbar-links { justify-content: flex-start; }
  .rm-notebook-copy { padding-block: 42px; }
  .rm-notebook-copy h1 { font-size: clamp(40px, 5.3vw, 60px); }
  .rm-notebook-kicker { margin-bottom: 26px; font-size: 11px; }
  .rm-notebook-actions { gap: 10px; }
  .rm-notebook-button { padding: 14px 17px; min-height: 50px; }
  .rm-notebook-course { padding-inline: 24px; }
  .rm-notebook-course p { font-size: 16px; }
}
@media (max-width: 760px) {
  .rm-notebook-hero { grid-template-columns: minmax(0, 1fr); }
  .rm-notebook-copy { padding: 40px 24px 24px; }
  .rm-notebook-copy h1 { font-size: clamp(39px, 8.6vw, 62px); }
  .rm-notebook-intro { max-width: 540px; font-size: 20px; margin-top: 22px; }
  .rm-notebook-actions { margin-top: 24px; }
  .rm-notebook-art { max-width: 650px; margin-inline: auto; background: #fff; }
  .rm-notebook-courses { padding-top: 26px; }
  .rm-notebook-course-grid { grid-template-columns: minmax(0, 1fr); }
  .rm-notebook-course, .rm-notebook-course:first-child, .rm-notebook-course:last-child { padding: 26px 0; border: 0; border-bottom: 1px solid var(--home-rule); }
  .rm-notebook-course:first-child { padding-top: 0; }
  .rm-notebook-course h3 { font-size: 23px; }
  .rm-notebook-course p { font-size: 17px; max-width: 540px; }
  .rm-notebook-resource-grid { grid-template-columns: minmax(0, 1fr); gap: 14px; }
  .rm-notebook-resources { padding-top: 0; }
}
@media (max-width: 420px) {
  .rm-home-notebook .rm-navbar-inner { padding: 10px 18px; }
  .rm-home-notebook .rm-navbar-brand { gap: 9px; }
  .rm-home-notebook .rm-navbar-logo { width: 43px; height: 38px; }
  .rm-home-notebook .rm-navbar-title { font-size: 22px; }
  .rm-home-notebook .rm-navbar-links a { font-size: 12px; padding: 10px 8px; min-height: 40px; }
  .rm-notebook-copy { padding: 32px 20px 18px; }
  .rm-notebook-copy h1 { font-size: clamp(34px, 9.5vw, 40px); }
  .rm-notebook-kicker { font-size: 10px; letter-spacing: .21em; margin-bottom: 24px; }
  .rm-notebook-intro { font-size: 18px; }
  .rm-notebook-actions { gap: 10px; }
  .rm-notebook-button { font-size: 14px; padding: 13px 15px; min-height: 48px; gap: 10px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .rm-notebook-button { transition: none; } }