:root {
  --ink: #111b32;
  --ink-soft: #526079;
  --paper: #f6f5f0;
  --white: #fff;
  --blue: #315efb;
  --blue-deep: #1538bc;
  --lime: #ccff4a;
  --line: rgba(17, 27, 50, .14);
  --radius: 28px;
  --shadow: 0 24px 70px rgba(17, 27, 50, .12);
  --max: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  transform: translateY(-160%);
  border-radius: 10px;
  background: var(--ink);
  color: var(--white);
}
.skip-link:focus { transform: none; }

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 76px;
  padding: 12px max(24px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid transparent;
  background: rgba(246, 245, 240, .88);
  backdrop-filter: blur(18px);
  transition: border-color .2s ease, box-shadow .2s ease;
}
.site-header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 8px 30px rgba(17, 27, 50, .05);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  width: fit-content;
  color: var(--ink);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.03em;
  text-decoration: none;
}
.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 11px;
  background: var(--blue);
  color: var(--white);
  font-weight: 900;
}
.site-nav { display: flex; gap: 30px; }
.site-nav a {
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
  transition: color .2s ease;
}
.site-nav a:hover { color: var(--ink); }
.header-login { justify-self: end; }
.menu-toggle { display: none; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 15px;
  font-size: 15px;
  font-weight: 750;
  text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.button:hover { transform: translateY(-2px); }
.button:active { transform: translateY(0); }
.button-small { min-height: 42px; padding-inline: 17px; border-radius: 12px; font-size: 14px; }
.button-primary { background: var(--blue); color: var(--white); box-shadow: 0 12px 28px rgba(49, 94, 251, .25); }
.button-primary:hover { background: var(--blue-deep); }
.button-quiet { border-color: var(--line); background: rgba(255,255,255,.58); }
.button-light { background: var(--white); color: var(--ink); }
.button-light span { margin-left: 14px; }
.button-outline { border-color: rgba(17,27,50,.28); background: transparent; }
.text-link { font-weight: 700; text-decoration: none; }

:focus-visible { outline: 3px solid var(--lime); outline-offset: 3px; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(420px, .98fr);
  gap: clamp(48px, 8vw, 110px);
  align-items: center;
  width: min(var(--max), calc(100% - 48px));
  min-height: calc(100vh - 76px);
  margin: 0 auto;
  padding: 78px 0 92px;
}
.eyebrow {
  margin: 0 0 22px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.hero h1, .section h2, .final-cta h2 {
  margin: 0;
  font-size: clamp(52px, 6.4vw, 92px);
  line-height: .98;
  letter-spacing: -.068em;
}
.hero h1 { max-width: 760px; }
.hero-accent { color: var(--blue); }
.hero-lead {
  max-width: 650px;
  margin: 32px 0 0;
  color: var(--ink-soft);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.55;
}
.hero-actions { display: flex; align-items: center; gap: 25px; margin-top: 38px; }
.hero-notes {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 27px;
  padding: 0;
  margin: 38px 0 0;
  list-style: none;
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 650;
}
.hero-notes li::before { content: "✓"; margin-right: 7px; color: var(--blue); font-weight: 900; }

.hero-scene { position: relative; padding: 35px 0 45px; }
.lesson-card {
  position: relative;
  z-index: 2;
  min-height: 530px;
  padding: 30px;
  overflow: hidden;
  border-radius: 36px;
  background: var(--ink);
  color: var(--white);
  box-shadow: var(--shadow);
  transform: rotate(1.5deg);
}
.lesson-card::after {
  position: absolute;
  right: -90px;
  bottom: -120px;
  width: 360px;
  height: 360px;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 50%;
  box-shadow: 0 0 0 42px rgba(255,255,255,.03), 0 0 0 84px rgba(255,255,255,.025);
  content: "";
}
.lesson-card-top { display: flex; justify-content: space-between; align-items: flex-start; }
.lesson-card-top strong { display: block; margin-top: 3px; font-size: 22px; }
.lesson-kicker { color: #a9b4ca; font-size: 12px; font-weight: 750; text-transform: uppercase; letter-spacing: .1em; }
.lesson-live { display: inline-flex; align-items: center; gap: 7px; padding: 8px 11px; border: 1px solid rgba(255,255,255,.13); border-radius: 30px; color: #dce4f5; font-size: 12px; }
.lesson-live span { width: 7px; height: 7px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 4px rgba(204,255,74,.1); }
.lesson-topic { display: flex; align-items: flex-end; gap: 20px; margin-top: 54px; }
.lesson-number { color: var(--lime); font-size: 58px; font-weight: 850; letter-spacing: -.06em; line-height: 1; }
.lesson-topic p { margin: 0; font-size: clamp(27px, 3vw, 42px); font-weight: 800; line-height: 1.05; letter-spacing: -.045em; }
.chat-stack { display: grid; gap: 10px; margin-top: 48px; }
.chat-line { width: fit-content; max-width: 88%; padding: 13px 17px; border-radius: 15px; font-size: 14px; font-weight: 650; }
.chat-line-a { background: var(--blue); }
.chat-line-b { margin-left: auto; background: rgba(255,255,255,.12); }
.chat-line-c { background: var(--lime); color: var(--ink); }
.lesson-footer { position: absolute; z-index: 2; bottom: 27px; left: 30px; display: flex; align-items: center; gap: 15px; color: #bdc7da; font-size: 12px; }
.avatar-cluster { display: flex; }
.avatar-cluster i { display: grid; width: 30px; height: 30px; place-items: center; margin-left: -7px; border: 2px solid var(--ink); border-radius: 50%; background: #d7dcff; color: var(--ink); font-size: 10px; font-style: normal; font-weight: 850; }
.avatar-cluster i:first-child { margin-left: 0; background: #ffcfdf; }
.avatar-cluster i:last-child { background: var(--lime); }
.floating-note { position: absolute; z-index: 3; padding: 10px 15px; border-radius: 12px; box-shadow: 0 10px 24px rgba(17,27,50,.14); font-size: 12px; font-weight: 850; transform: rotate(-5deg); }
.floating-note-one { top: 10px; right: -20px; background: var(--lime); }
.floating-note-two { right: 12px; bottom: 12px; background: var(--white); transform: rotate(4deg); }

.ticker { overflow: hidden; border-block: 1px solid var(--line); background: var(--white); }
.ticker p { width: max-content; margin: 0; padding: 17px 0; animation: ticker 24s linear infinite; color: var(--ink); font-size: 14px; font-weight: 850; letter-spacing: .06em; text-transform: uppercase; }
.ticker span { margin-inline: 30px; color: var(--blue); }
@keyframes ticker { to { transform: translateX(-50%); } }

.section { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; padding: 130px 0; }
.section-heading { display: grid; grid-template-columns: .35fr 1fr .65fr; gap: 36px; align-items: start; }
.section-heading h2, .programs h2, .questions h2 { font-size: clamp(44px, 5vw, 72px); }
.section-heading > p:last-child, .programs-intro > p:last-child { margin: 4px 0 0; color: var(--ink-soft); font-size: 17px; line-height: 1.65; }
.practice-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 70px; }
.practice-card { position: relative; min-height: 390px; padding: 28px; border-radius: var(--radius); }
.practice-card-blue { background: var(--blue); color: var(--white); }
.practice-card-lime { background: var(--lime); }
.practice-card-paper { border: 1px solid var(--line); background: var(--white); }
.card-index { position: absolute; top: 28px; right: 28px; font-size: 12px; font-weight: 850; opacity: .65; }
.practice-icon { display: grid; width: 78px; height: 78px; place-items: center; margin-bottom: 86px; border: 1px solid currentColor; border-radius: 22px; font-size: 35px; font-weight: 850; }
.practice-icon-grid { grid-template-columns: 1fr 1fr; gap: 5px; padding: 20px; }
.practice-icon-grid i { width: 14px; height: 14px; border: 2px solid currentColor; border-radius: 4px; }
.practice-icon-arrow { font-size: 38px; }
.practice-card h3 { margin: 0 0 13px; font-size: 25px; letter-spacing: -.035em; }
.practice-card p { margin: 0; opacity: .8; font-size: 15px; line-height: 1.65; }

.programs { display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(48px, 8vw, 120px); border-top: 1px solid var(--line); }
.programs-intro { position: sticky; top: 120px; align-self: start; }
.programs-intro h2 { margin: 0; line-height: 1; letter-spacing: -.06em; }
.programs-intro > p:last-child { max-width: 470px; margin-top: 28px; }
.program-list { display: grid; gap: 18px; }
.program-row { display: grid; grid-template-columns: 90px 1fr; gap: 24px; min-height: 330px; padding: 34px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.program-row-dark { background: var(--ink); color: var(--white); }
.program-age { font-size: 14px; font-weight: 850; color: var(--blue); }
.program-row-dark .program-age { color: var(--lime); }
.program-row h3 { margin: 0; font-size: 34px; letter-spacing: -.045em; }
.program-row p { max-width: 480px; margin: 15px 0 0; color: var(--ink-soft); font-size: 16px; }
.program-row-dark p { color: #aeb9cf; }
.program-row ul { grid-column: 2; display: grid; gap: 9px; align-self: end; padding: 0; margin: 24px 0 0; list-style: none; font-size: 14px; }
.program-row li::before { content: "→"; margin-right: 9px; color: var(--blue); }
.program-row-dark li::before { color: var(--lime); }

.platform { display: grid; grid-template-columns: 1.2fr .8fr; gap: clamp(50px, 8vw, 100px); align-items: center; width: 100%; max-width: none; padding-inline: max(24px, calc((100vw - var(--max)) / 2)); background: var(--blue); color: var(--white); }
.platform-window { overflow: hidden; border: 1px solid rgba(255,255,255,.2); border-radius: 24px; background: var(--white); box-shadow: 0 30px 60px rgba(6,20,71,.25); transform: perspective(1100px) rotateY(5deg); }
.window-bar { display: flex; align-items: center; gap: 7px; height: 46px; padding: 0 15px; border-bottom: 1px solid #e5e8f0; color: #7a8396; font-size: 10px; }
.window-bar > span { width: 8px; height: 8px; border-radius: 50%; background: #d8dbe4; }
.window-bar > div { min-width: 150px; padding: 5px 12px; margin: auto; border-radius: 7px; background: #f0f2f7; text-align: center; }
.window-body { display: grid; grid-template-columns: 60px 1fr; min-height: 390px; }
.window-body aside { display: flex; flex-direction: column; align-items: center; gap: 22px; padding-top: 17px; border-right: 1px solid #e8eaf0; }
.mini-logo { display: grid; width: 28px; height: 28px; place-items: center; border-radius: 8px; background: var(--blue); font-size: 12px; font-weight: 900; }
.window-body aside i { width: 20px; height: 7px; border-radius: 5px; background: #dbe0ea; }
.window-body aside i.active { background: var(--blue); }
.window-content { padding: 28px; }
.mock-heading { display: flex; align-items: center; justify-content: space-between; }
.mock-heading i { width: 90px; height: 17px; border-radius: 6px; background: #1a2741; }
.mock-heading span { width: 70px; height: 22px; border-radius: 8px; background: #e9edff; }
.mock-week { display: grid; grid-template-columns: repeat(5,1fr); min-height: 270px; margin-top: 25px; border: 1px solid #e0e4ed; border-radius: 12px; }
.mock-week > div { position: relative; padding: 15px 8px; border-left: 1px solid #e0e4ed; color: #68748a; font-size: 9px; }
.mock-week > div:first-child { border-left: 0; }
.mock-week > div::after { position: absolute; right: 0; bottom: 62%; left: 0; height: 1px; background: #edf0f5; content: ""; box-shadow: 0 54px #edf0f5, 0 108px #edf0f5; }
.mock-event { position: absolute; z-index: 2; top: 80px; right: 6px; left: 6px; height: 64px; border-radius: 8px; background: #dfe5ff; border-left: 3px solid var(--blue); }
.mock-event-lime { top: 145px; background: #edffc1; border-color: #78a300; }
.eyebrow-light { color: var(--lime); }
.platform-copy h2 { margin: 0; font-size: clamp(42px, 4.5vw, 68px); line-height: 1; letter-spacing: -.06em; }
.platform-copy > p:not(.eyebrow) { margin: 28px 0; color: #d5dcf0; font-size: 17px; line-height: 1.65; }
.check-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 0; margin: 0 0 35px; list-style: none; font-size: 14px; }
.check-list li::before { content: "✓"; margin-right: 8px; color: var(--lime); }

.section-heading-wide { grid-template-columns: .35fr 1.65fr; }
.path-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 40px; padding: 0; margin: 70px 0 0 35%; list-style: none; }
.path-list li { display: grid; grid-template-columns: 46px 1fr; gap: 18px; padding: 30px 0; border-top: 1px solid var(--line); }
.path-list > li > span { display: grid; width: 34px; height: 34px; place-items: center; border-radius: 50%; background: var(--ink); color: var(--white); font-size: 12px; font-weight: 850; }
.path-list h3 { margin: 3px 0 9px; font-size: 20px; letter-spacing: -.03em; }
.path-list p { margin: 0; color: var(--ink-soft); font-size: 14px; line-height: 1.65; }

.questions { display: grid; grid-template-columns: .7fr 1.3fr; gap: 90px; border-top: 1px solid var(--line); }
.questions h2 { margin: 0; line-height: 1; letter-spacing: -.06em; }
.faq-list details { border-top: 1px solid var(--line); }
.faq-list details:last-child { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 27px 50px 27px 0; cursor: pointer; list-style: none; font-size: 19px; font-weight: 750; letter-spacing: -.02em; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { position: absolute; top: 25px; right: 6px; content: "+"; color: var(--blue); font-size: 24px; font-weight: 500; transition: transform .2s ease; }
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list details p { max-width: 700px; padding: 0 45px 27px 0; margin: 0; color: var(--ink-soft); line-height: 1.7; }

.final-cta { width: min(var(--max), calc(100% - 48px)); padding: 90px; margin: 0 auto 30px; border-radius: 38px; background: var(--lime); text-align: center; }
.final-cta h2 { font-size: clamp(42px, 5.6vw, 78px); }
.final-cta > div { display: flex; justify-content: center; gap: 12px; margin-top: 40px; }
.site-footer { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; width: min(var(--max), calc(100% - 48px)); min-height: 125px; margin: 0 auto; color: var(--ink-soft); font-size: 12px; }
.site-footer p:last-child { justify-self: end; }

@media (max-width: 980px) {
  .site-header { grid-template-columns: 1fr auto; }
  .header-login { display: none; }
  .menu-toggle { display: flex; align-items: center; gap: 10px; border: 0; background: transparent; color: var(--ink); font-size: 13px; font-weight: 750; }
  .menu-toggle-icon, .menu-toggle-icon::before { display: block; width: 18px; height: 2px; border-radius: 2px; background: currentColor; content: ""; transition: transform .2s ease; }
  .menu-toggle-icon::before { transform: translateY(5px); }
  .menu-toggle[aria-expanded="true"] .menu-toggle-icon { transform: rotate(45deg); }
  .menu-toggle[aria-expanded="true"] .menu-toggle-icon::before { transform: rotate(-90deg); }
  .site-nav { position: absolute; top: 76px; right: 0; left: 0; display: none; flex-direction: column; gap: 0; padding: 10px 24px 24px; border-bottom: 1px solid var(--line); background: var(--paper); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 16px; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 70px; }
  .hero-copy { max-width: 760px; }
  .hero-scene { width: min(620px, 100%); margin-inline: auto; }
  .section-heading { grid-template-columns: 1fr 1fr; }
  .section-heading .eyebrow { grid-column: 1 / -1; }
  .practice-grid { grid-template-columns: 1fr 1fr; }
  .practice-card:last-child { grid-column: 1 / -1; min-height: 310px; }
  .programs { grid-template-columns: 1fr; }
  .programs-intro { position: static; }
  .platform { grid-template-columns: 1fr; }
  .platform-window { max-width: 760px; transform: none; }
  .path-list { margin-left: 0; }
  .questions { grid-template-columns: 1fr; gap: 50px; }
}

@media (max-width: 650px) {
  .site-header { min-height: 68px; padding-inline: 18px; }
  .brand { font-size: 16px; }
  .brand-mark { width: 32px; height: 32px; border-radius: 9px; }
  .site-nav { top: 68px; }
  .hero, .section, .final-cta, .site-footer { width: min(100% - 32px, var(--max)); }
  .hero { gap: 30px; padding: 55px 0 65px; }
  .hero h1 { font-size: clamp(43px, 14vw, 64px); }
  .hero-lead { margin-top: 24px; font-size: 17px; }
  .hero-actions { align-items: flex-start; flex-direction: column; margin-top: 30px; }
  .hero-notes { display: grid; gap: 8px; margin-top: 30px; }
  .hero-scene { padding-inline: 4px; }
  .lesson-card { min-height: 470px; padding: 23px; border-radius: 27px; }
  .lesson-topic { align-items: flex-start; flex-direction: column; gap: 8px; margin-top: 42px; }
  .lesson-number { font-size: 42px; }
  .lesson-topic p { font-size: 29px; }
  .chat-stack { margin-top: 34px; }
  .lesson-footer { right: 20px; bottom: 20px; left: 20px; }
  .floating-note-one { right: -5px; }
  .floating-note-two { right: 0; }
  .section { padding: 90px 0; }
  .section-heading { grid-template-columns: 1fr; gap: 24px; }
  .section-heading .eyebrow { grid-column: auto; }
  .section-heading h2, .programs h2, .questions h2 { font-size: 44px; }
  .practice-grid { grid-template-columns: 1fr; margin-top: 45px; }
  .practice-card, .practice-card:last-child { grid-column: auto; min-height: 345px; }
  .practice-icon { margin-bottom: 60px; }
  .program-row { grid-template-columns: 1fr; min-height: 0; padding: 26px; }
  .program-row h3 { font-size: 29px; }
  .program-row ul { grid-column: auto; }
  .platform { width: 100%; padding-inline: 16px; }
  .window-body { grid-template-columns: 42px 1fr; min-height: 280px; }
  .window-content { padding: 17px; }
  .mock-week { min-height: 190px; }
  .window-body aside { gap: 15px; }
  .platform-copy h2 { font-size: 44px; }
  .check-list { grid-template-columns: 1fr; }
  .section-heading-wide { grid-template-columns: 1fr; }
  .path-list { grid-template-columns: 1fr; margin-top: 45px; }
  .questions { gap: 38px; }
  .faq-list summary { font-size: 17px; }
  .final-cta { padding: 70px 22px; border-radius: 28px; }
  .final-cta h2 { font-size: 43px; }
  .final-cta > div { flex-direction: column; }
  .site-footer { grid-template-columns: 1fr; gap: 12px; padding: 35px 0; }
  .site-footer p { margin: 0; }
  .site-footer p:last-child { justify-self: start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}