:root {
  color-scheme: light;
  --navy: #0b2447;
  --blue: #0866d9;
  --paper: #f7f9fc;
  --muted: #52627a;
  --line: #dce4ee;
  --sage: #edf5f0;
  --sand: #fff5e5;
  font-family:
    ui-rounded,
    "SF Pro Rounded",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  color: var(--navy);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
}
a {
  color: var(--blue);
  text-underline-offset: 4px;
}
a:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 5px;
  border-radius: 4px;
}
.skip {
  position: absolute;
  left: 16px;
  top: -80px;
  padding: 12px;
  background: white;
  z-index: 10;
}
.skip:focus {
  top: 12px;
}
.wrap {
  width: min(1120px, calc(100% - 48px));
  margin: auto;
}
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  min-height: 100px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--navy);
  text-decoration: none;
  font-size: 23px;
  font-weight: 750;
  letter-spacing: -0.6px;
}
.brand img {
  width: 42px;
  height: 42px;
}
nav {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 14px;
  font-weight: 650;
  color: var(--muted);
  text-decoration: none;
}
nav a:hover,
nav a[aria-current] {
  color: var(--blue);
}
.hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
  gap: 80px;
  padding: 70px 0 100px;
}
.eyebrow {
  color: var(--blue);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 1.6px;
  text-transform: uppercase;
}
h1,
h2,
h3 {
  text-wrap: balance;
}
h1 {
  font-size: clamp(42px, 5.2vw, 64px);
  line-height: 1.05;
  letter-spacing: -2.5px;
  margin: 20px 0 26px;
}
h1 em {
  font-style: normal;
  color: var(--blue);
}
p {
  text-wrap: pretty;
  line-height: 1.7;
}
.hero p {
  font-size: 19px;
  color: var(--muted);
  max-width: 450px;
  margin-bottom: 30px;
}
.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  min-height: 52px;
  padding: 14px 24px;
  border-radius: 14px;
  background: var(--blue);
  color: white;
  text-decoration: none;
  font-size: 15px;
  font-weight: 700;
  box-shadow: 0 3px 0 #004baf;
  transition:
    transform 150ms ease-out,
    background-color 150ms ease-out;
}
.button:hover {
  background: #075bbf;
}
.button:active {
  transform: scale(0.96);
}
.launch-note {
  display: block;
  margin-top: 18px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}
.practice-scene {
  position: relative;
  padding: 32px;
  background: #e8eff9;
  border-radius: 48px;
}
.practice-sheet {
  background: white;
  border-radius: 24px;
  padding: 30px;
  box-shadow:
    0 8px 25px #0b244710,
    0 2px 4px #0b244705;
}
.sheet-top {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
}
.lesson-line {
  height: 5px;
  border-radius: 9px;
  background: #e7edf5;
  margin: 20px 0 30px;
}
.lesson-line span {
  display: block;
  width: 64%;
  height: 100%;
  background: var(--blue);
  border-radius: 9px;
}
.verb {
  display: block;
  margin: 12px 0 4px;
  font-size: 40px;
  font-weight: 750;
  letter-spacing: -1px;
}
.meaning {
  color: var(--muted);
  font-size: 15px;
}
.example {
  margin: 27px 0 12px;
  font-size: 18px;
  font-weight: 650;
}
.example strong {
  color: var(--blue);
}
.translation {
  color: var(--muted);
  font-size: 13px;
}
.answer {
  padding: 15px 18px;
  margin-top: 26px;
  background: var(--sage);
  border-radius: 14px;
  font-size: 14px;
  color: #245f3b;
  font-weight: 650;
}
.small-label {
  font-size: 11px;
  letter-spacing: 1.1px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
}
.scene-caption {
  display: block;
  text-align: center;
  margin-top: 16px;
  color: var(--muted);
  font-size: 12px;
}
.section {
  padding: 80px 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 28px;
}
.section-heading {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 50px;
}
h2 {
  font-size: 36px;
  letter-spacing: -1.1px;
  line-height: 1.2;
  margin: 10px 0 18px;
}
.section-heading p {
  color: var(--muted);
}
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 38px;
}
.feature-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 13px;
  background: #e8eff9;
  color: var(--blue);
  font-size: 14px;
  font-weight: 750;
}
.features h3 {
  font-size: 20px;
  letter-spacing: -0.4px;
  margin: 22px 0 12px;
}
.features p {
  color: var(--muted);
  font-size: 15px;
}
.callout {
  background: var(--navy);
  color: white;
  border-radius: 32px;
  padding: 44px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
}
.callout h2 {
  margin-top: 0;
  font-size: 30px;
}
.callout p {
  max-width: 650px;
  color: #cdd8e9;
  margin: 0;
  font-size: 16px;
}
.callout .button {
  flex-shrink: 0;
  background: white;
  color: var(--navy);
  box-shadow: none;
}
footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  padding: 40px 0;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--muted);
}
footer .brand {
  font-size: 18px;
}
footer .brand img {
  width: 30px;
  height: 30px;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.footer-links a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.legal-heading {
  padding: 60px 0 40px;
}
.legal-heading h1 {
  font-size: clamp(38px, 5vw, 54px);
  margin-bottom: 18px;
}
.legal-heading p {
  color: var(--muted);
  max-width: 640px;
}
.legal-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 64px;
  padding-bottom: 80px;
}
.contents {
  align-self: start;
  position: sticky;
  top: 30px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.contents a {
  font-size: 13px;
  padding: 10px 0;
  min-height: 44px;
  text-decoration: none;
  color: var(--muted);
}
.contents a:hover {
  color: var(--blue);
}
.legal-copy {
  min-width: 0;
  max-width: 720px;
}
.legal-copy section {
  scroll-margin-top: 28px;
  border-top: 1px solid var(--line);
  padding: 26px 0;
}
.legal-copy h2 {
  font-size: 25px;
  letter-spacing: -0.6px;
}
.legal-copy p,
.legal-copy li {
  font-size: 15px;
  line-height: 1.85;
}
.legal-copy ul {
  padding-left: 22px;
}
.legal-copy li {
  margin-bottom: 9px;
}
.legal-copy a {
  overflow-wrap: anywhere;
}
.summary {
  padding: 22px 26px;
  background: #e8eff9;
  border-radius: 16px;
  margin: 0 0 32px;
}
.summary p {
  margin: 0;
}
.preview-note {
  padding: 12px 24px;
  background: var(--sand);
  text-align: center;
  color: #614918;
  font-size: 13px;
  line-height: 1.5;
}
.not-found {
  padding: 100px 0 140px;
  max-width: 650px;
}
@media (max-width: 800px) {
  .hero {
    gap: 30px;
    padding: 50px 0 65px;
  }
  .practice-scene {
    padding: 20px;
    border-radius: 38px;
  }
  .practice-sheet {
    padding: 22px;
    border-radius: 18px;
  }
  .features {
    gap: 24px;
  }
  .legal-layout {
    grid-template-columns: 170px 1fr;
    gap: 30px;
  }
  .callout {
    padding: 32px;
  }
}
@media (max-width: 620px) {
  .wrap {
    width: calc(100% - 36px);
  }
  .site-header {
    min-height: 90px;
    gap: 14px;
    flex-wrap: wrap;
    padding: 18px 0;
  }
  .brand {
    font-size: 21px;
  }
  nav {
    gap: 18px;
  }
  nav a {
    font-size: 13px;
  }
  .hero {
    grid-template-columns: 1fr;
    padding: 40px 0 60px;
    gap: 42px;
  }
  h1 {
    letter-spacing: -1.8px;
  }
  .hero p {
    font-size: 17px;
  }
  .practice-scene {
    max-width: 390px;
    width: 100%;
    margin: auto;
  }
  .features {
    grid-template-columns: 1fr;
    gap: 26px;
  }
  .features h3 {
    margin-top: 15px;
  }
  .features p {
    margin-bottom: 0;
  }
  .section {
    padding: 55px 0;
  }
  .section-heading {
    margin-bottom: 36px;
  }
  h2 {
    font-size: 29px;
  }
  .callout {
    flex-direction: column;
    align-items: flex-start;
    padding: 30px;
    gap: 24px;
    border-radius: 24px;
  }
  footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding: 30px 0;
  }
  .legal-heading {
    padding: 35px 0 22px;
  }
  .legal-layout {
    display: block;
  }
  .contents {
    position: static;
    margin-bottom: 26px;
    flex-flow: row wrap;
    gap: 4px 18px;
  }
  .contents a {
    font-size: 12px;
  }
  .legal-copy section {
    padding: 20px 0;
  }
}
@media (prefers-reduced-motion: reduce) {
  .button {
    transition: none;
  }
  .button:active {
    transform: none;
  }
}