:root {
  --green: #1d7d57;
  --green-dark: #126244;
  --yellow: #f4dd1f;
  --cream: #fbf3ea;
  --ink: #171714;
  --muted: #66685f;
  --line: #e7e2d9;
  --white: #fff;
  --container: min(1180px, calc(100% - 40px));
  --serif: Georgia, "Times New Roman", serif;
  --sans: "Trebuchet MS", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #fff; font-family: var(--sans); line-height: 1.6; }
body.nav-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }
.container { width: var(--container); margin-inline: auto; }
section[id] { scroll-margin-top: 82px; }
.skip-link { position: fixed; top: -80px; left: 18px; z-index: 1000; padding: 10px 14px; color: #fff; background: var(--green-dark); }
.skip-link:focus { top: 18px; }

.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.96); border-bottom: 1px solid transparent; backdrop-filter: blur(10px); transition: box-shadow .2s, border-color .2s; }
.site-header.is-scrolled { border-color: #ece9e2; box-shadow: 0 10px 32px rgba(35,47,38,.08); }
.header-inner { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 36px; }
.wordmark { display: inline-block; max-width: min(34vw, 280px); overflow: hidden; color: var(--green); font-size: clamp(19px, 2.1vw, 28px); font-weight: 900; line-height: 1; letter-spacing: .075em; text-overflow: ellipsis; text-transform: uppercase; white-space: nowrap; }
.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav a { position: relative; font-size: 13px; font-weight: 800; }
.main-nav a::after { position: absolute; content: ""; right: 0; bottom: -8px; left: 0; height: 2px; background: var(--green); transform: scaleX(0); transition: transform .2s; }
.main-nav a:hover::after, .main-nav a:focus-visible::after { transform: scaleX(1); }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 10px; border: 0; background: transparent; cursor: pointer; }
.menu-toggle span { display: block; width: 24px; height: 2px; margin: 5px auto; background: var(--ink); transition: .2s; }

.hero { position: relative; min-height: 690px; overflow: hidden; background: #fff; }
.hero-grid { min-height: 690px; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 50px; padding: 65px 0 80px; }
.kicker, .section-label { margin: 0 0 15px; color: var(--green); font-size: 11px; font-weight: 900; letter-spacing: .13em; }
.hero h1 { max-width: 700px; margin: 0; font-family: var(--serif); font-size: clamp(58px, 6.3vw, 88px); font-weight: 400; line-height: .93; letter-spacing: -.055em; }
.hero h1 em, h2 em { color: var(--green); font-style: normal; }
.lead { max-width: 630px; margin: 28px 0; color: var(--muted); font-size: 17px; }
.hero-index { max-width: 620px; display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 34px; padding-top: 20px; border-top: 1px solid var(--line); }
.hero-index span { display: grid; grid-template-columns: 26px 1fr; color: #484b43; font-size: 12px; font-weight: 800; }
.hero-index b { color: var(--green); }
.hero-media { position: relative; align-self: end; min-height: 570px; display: flex; align-items: end; justify-content: center; }
.hero-media::before { position: absolute; content: ""; width: 420px; height: 420px; right: 4%; bottom: 35px; background: var(--cream); border-radius: 50%; }
.hero-media::after { position: absolute; content: ""; width: 110px; height: 110px; top: 80px; right: 0; border: 18px solid var(--yellow); border-radius: 50%; opacity: .85; }
.hero-media > img { position: relative; z-index: 2; width: min(600px, 110%); max-height: 620px; object-fit: contain; object-position: bottom; }
.hero-note { position: absolute; z-index: 3; padding: 11px 16px; background: #fff; border: 1px solid #e9e5dc; box-shadow: 0 12px 30px rgba(50,57,48,.11); font-size: 12px; font-weight: 900; }
.hero-note b { color: var(--green); font-size: 18px; }
.hero-note-one { top: 170px; left: -10px; }
.hero-note-two { right: 0; bottom: 88px; }
.hero-dots { position: absolute; width: 170px; height: 90px; left: 2%; bottom: 30px; background-image: radial-gradient(var(--green) 1.6px, transparent 1.6px); background-size: 15px 15px; opacity: .18; }

.ticker { overflow: hidden; color: #141714; background: var(--yellow); border-block: 1px solid #d7c313; }
.ticker-track { min-width: max-content; display: flex; gap: 70px; padding: 18px 0; animation: ticker 28s linear infinite; }
.ticker span { font-family: var(--serif); font-size: 23px; }
@keyframes ticker { to { transform: translateX(-33.33%); } }

.section { padding: 105px 0; }
.section-label-light { color: var(--yellow); }
.focus { position: relative; color: #fff; background: var(--green); }
.focus::after { position: absolute; content: ""; right: 0; bottom: -1px; left: 0; height: 55px; background: var(--cream); clip-path: polygon(0 72%, 68% 0, 100% 70%, 100% 100%, 0 100%); }
.focus-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 48px; align-items: end; padding-bottom: 45px; }
.focus-photo { overflow: hidden; margin-bottom: 34px; border-radius: 85px 0 85px 0; }
.focus-photo img { width: 100%; height: 275px; object-fit: cover; }
.focus h2, .section-head h2, .method h2, .examples h2 { margin: 0 0 18px; font-family: var(--serif); font-size: clamp(43px, 4.7vw, 64px); font-weight: 400; line-height: .98; letter-spacing: -.045em; }
.focus h2 em { color: var(--yellow); }
.focus-intro > p:last-child { color: #d6eee4; }
.plain-checks { display: grid; gap: 10px; margin: 0 0 26px; padding: 0; list-style: none; }
.plain-checks li { position: relative; padding-left: 20px; color: #e5f3ed; font-size: 13px; }
.plain-checks li::before { position: absolute; content: "✦"; left: 0; color: var(--yellow); }
.focus-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.focus-cards article { overflow: hidden; color: var(--ink); background: #fff; border-radius: 16px 16px 60px 16px; }
.focus-cards img { width: 100%; height: 155px; object-fit: cover; }
.focus-cards h3 { margin: 20px 20px 8px; font-size: 16px; }
.focus-cards p { margin: 0 20px 24px; color: var(--muted); font-size: 12px; }

.learning { padding-top: 135px; background: var(--cream); }
.section-head { max-width: 750px; margin-bottom: 38px; }
.section-head > p:last-child { max-width: 670px; color: var(--muted); }
.section-head-center { margin-right: auto; margin-left: auto; text-align: center; }
.learning-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.lesson-card { overflow: hidden; background: #fff; border: 1px solid #eee6db; border-radius: 13px; transition: transform .22s, box-shadow .22s; }
.lesson-card:hover { transform: translateY(-5px); box-shadow: 0 18px 36px rgba(65,57,47,.11); }
.lesson-card > img { width: 100%; height: 215px; object-fit: cover; }
.lesson-card > div { padding: 22px; }
.lesson-meta { margin: 0 0 8px; color: var(--green); font-size: 10px; font-weight: 900; letter-spacing: .09em; }
.lesson-card h3 { margin: 0 0 10px; font-family: var(--serif); font-size: 23px; line-height: 1.1; }
.lesson-card div > p:not(.lesson-meta) { min-height: 62px; margin: 0 0 16px; color: var(--muted); font-size: 13px; }
.lesson-foot { display: flex; justify-content: space-between; padding-top: 13px; border-top: 1px solid #ece7df; color: var(--green); font-size: 10px; font-weight: 900; }

.categories { background: #fff; }
.category-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.category { min-height: 188px; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 22px 14px; text-align: center; background: var(--cream); border: 1px solid transparent; border-radius: 12px; transition: .22s; }
.category:hover { color: #fff; background: var(--green); transform: translateY(-4px); }
.category img { width: 52px; height: 52px; object-fit: contain; margin-bottom: 14px; }
.category h3 { margin: 0 0 5px; font-family: var(--serif); font-size: 20px; line-height: 1.1; }
.category p { margin: 0; color: #74756e; font-size: 11px; }
.category:hover p { color: #d8eee5; }

.method { background: var(--cream); }
.method-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 78px; align-items: center; }
.method-copy > p:not(.section-label) { color: var(--muted); }
.method-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 34px; }
.method-stats div { padding: 17px 10px; background: #fff; border-radius: 45px; text-align: center; }
.method-stats strong { display: block; color: var(--green); font-family: var(--serif); font-size: 23px; }
.method-stats span { font-size: 10px; font-weight: 900; }
.method-steps { display: grid; gap: 15px; }
.method-steps article { display: grid; grid-template-columns: 74px 1fr; gap: 22px; padding: 27px; background: #fff; border-radius: 16px 16px 65px 16px; }
.method-steps article > span { width: 60px; height: 60px; display: grid; place-items: center; color: var(--ink); background: var(--yellow); border-radius: 50%; font-family: var(--serif); font-size: 22px; }
.method-steps h3 { margin: 0 0 5px; font-family: var(--serif); font-size: 25px; }
.method-steps p { margin: 0; color: var(--muted); font-size: 13px; }

.examples { background: #fff; }
.examples-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 72px; align-items: start; }
.examples-copy > p:last-child { color: var(--muted); }
.example-notes { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.example-notes article { position: relative; min-height: 225px; padding: 30px; background: var(--cream); border-radius: 15px 15px 70px 15px; }
.example-notes article:last-child { grid-column: 1 / -1; }
.note-mark { color: var(--green); font-family: var(--serif); font-size: 60px; line-height: .5; }
.example-notes p { font-family: var(--serif); font-size: 22px; line-height: 1.2; }
.example-notes span { color: var(--green); font-size: 10px; font-weight: 900; letter-spacing: .12em; }

.faq { background: #fff; border-top: 1px solid var(--line); }
.faq-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 75px; }
.accordion { display: grid; gap: 12px; }
.accordion details { padding: 0 24px; background: var(--cream); border-radius: 11px; }
.accordion summary { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 18px; cursor: pointer; font-family: var(--serif); font-size: 19px; list-style: none; }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary span { color: var(--green); font-family: var(--sans); font-size: 24px; transition: transform .2s; }
.accordion details[open] summary span { transform: rotate(45deg); }
.accordion details p { margin: -2px 36px 23px 0; color: var(--muted); font-size: 13px; }

.site-footer { position: relative; overflow: hidden; padding-top: 78px; color: #e6f2ed; background: var(--green); }
.footer-top { position: relative; z-index: 2; display: grid; grid-template-columns: 1.6fr .7fr .8fr 1fr; gap: 50px; padding-bottom: 58px; }
.wordmark-footer { color: #fff; }
.footer-top > div:first-child p { max-width: 370px; color: #c6e1d6; }
.footer-top h2 { margin: 0 0 18px; color: var(--yellow); font-size: 13px; }
.footer-top > div:not(:first-child) { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.footer-top a { font-size: 12px; }
.support-email { overflow-wrap: anywhere; font-weight: 800; }
.footer-bottom { position: relative; z-index: 2; min-height: 70px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid rgba(255,255,255,.18); color: #c9ded5; font-size: 11px; }
.footer-ring { position: absolute; width: 460px; height: 460px; right: -95px; bottom: -250px; background-image: url("../media/footer-thumbnail-border.87565758.svg"); background-repeat: no-repeat; background-position: center; background-size: contain; opacity: .9; pointer-events: none; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .55s ease, transform .55s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1040px) {
  .hero-grid { grid-template-columns: 1fr 1fr; }
  .focus-grid { grid-template-columns: 1fr; }
  .focus-intro { display: grid; grid-template-columns: .65fr 1fr; column-gap: 35px; align-items: end; }
  .focus-photo { grid-row: 1 / 5; margin: 0; }
  .learning-grid { grid-template-columns: 1fr 1fr; }
  .category-grid { grid-template-columns: repeat(3, 1fr); }
  .method-grid { gap: 42px; }
}

@media (max-width: 820px) {
  :root { --container: min(680px, calc(100% - 30px)); }
  .header-inner { min-height: 68px; }
  .menu-toggle { display: block; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .main-nav { position: fixed; top: 68px; right: 0; left: 0; display: grid; gap: 0; padding: 14px 22px 24px; background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 18px 32px rgba(34,42,35,.12); transform: translateY(-130%); opacity: 0; visibility: hidden; transition: .24s; }
  .main-nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .main-nav a { padding: 13px 3px; border-bottom: 1px solid #eeeae3; }
  .hero-grid { grid-template-columns: 1fr; padding-top: 58px; }
  .hero-media { min-height: 520px; }
  .focus-intro { display: block; }
  .focus-photo { margin-bottom: 30px; }
  .method-grid, .examples-grid, .faq-grid { grid-template-columns: 1fr; }
  .method-grid, .examples-grid, .faq-grid { gap: 38px; }
  .footer-top { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-top > div:last-child { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  .wordmark { max-width: 65vw; font-size: 20px; }
  .hero { min-height: auto; }
  .hero h1 { font-size: clamp(53px, 16vw, 72px); }
  .lead { font-size: 15px; }
  .hero-index { grid-template-columns: 1fr; gap: 8px; }
  .hero-media { min-height: 400px; }
  .hero-media::before { width: 310px; height: 310px; }
  .hero-media::after { width: 75px; height: 75px; top: 60px; border-width: 12px; }
  .hero-note-one { top: 100px; left: 0; }
  .hero-note-two { right: 0; bottom: 54px; }
  .ticker-track { gap: 38px; }
  .ticker span { font-size: 19px; }
  .section { padding: 78px 0; }
  .focus h2, .section-head h2, .method h2, .examples h2 { font-size: 44px; }
  .focus-cards, .learning-grid, .category-grid, .example-notes { grid-template-columns: 1fr; }
  .focus-cards img { height: 205px; }
  .lesson-card > img { height: 230px; }
  .category { min-height: 160px; }
  .method-stats { grid-template-columns: 1fr; }
  .method-steps article { grid-template-columns: 52px 1fr; padding: 22px 18px; gap: 14px; }
  .method-steps article > span { width: 48px; height: 48px; }
  .example-notes article:last-child { grid-column: auto; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 36px 22px; }
  .footer-top > div:first-child, .footer-top > div:last-child { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; align-items: flex-start; justify-content: center; gap: 3px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (max-width: 560px) { .footer-ring { width: 290px; height: 290px; right: -115px; bottom: -150px; } }


/* Original Eduthink footer portrait composition */
.site-footer { padding-top: 0; }
.footer-feature {
  position: relative;
  z-index: 2;
  min-height: 390px;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  align-items: center;
  gap: 56px;
  border-bottom: 1px solid rgba(255,255,255,.18);
}
.footer-feature-copy { position: relative; z-index: 3; max-width: 690px; padding: 72px 0; }
.footer-feature-copy .section-label { color: var(--yellow); }
.footer-feature-copy h2 {
  margin: 0 0 18px;
  color: #fff;
  font-family: var(--serif);
  font-size: clamp(46px, 5.2vw, 70px);
  font-weight: 400;
  line-height: .98;
  letter-spacing: -.045em;
}
.footer-feature-copy h2 em { color: var(--yellow); }
.footer-feature-copy > p:last-child { max-width: 620px; margin: 0; color: #c8e1d7; }
.footer-visual { position: relative; align-self: stretch; min-height: 390px; }
.footer-visual .footer-ring {
  width: 390px;
  height: 390px;
  right: -5px;
  bottom: -70px;
  opacity: 1;
}
.footer-visual > img {
  position: absolute;
  z-index: 2;
  right: 48px;
  bottom: -12px;
  width: 300px;
  height: 300px;
  object-fit: cover;
  border: 9px solid rgba(255,255,255,.16);
  border-radius: 50%;
}
.footer-top { padding-top: 62px; }

@media (max-width: 820px) {
  .footer-feature { grid-template-columns: 1fr .72fr; gap: 20px; }
  .footer-visual .footer-ring { width: 320px; height: 320px; right: -70px; bottom: -35px; }
  .footer-visual > img { width: 240px; height: 240px; right: -12px; bottom: 25px; }
}

@media (max-width: 560px) {
  .footer-feature { min-height: auto; grid-template-columns: 1fr; gap: 0; }
  .footer-feature-copy { padding: 64px 0 24px; }
  .footer-feature-copy h2 { font-size: 46px; }
  .footer-visual { min-height: 315px; }
  .footer-visual .footer-ring { width: 300px; height: 300px; right: 50%; bottom: -28px; transform: translateX(50%); }
  .footer-visual > img { width: 230px; height: 230px; right: 50%; bottom: 20px; transform: translateX(50%); }
  .footer-top { padding-top: 52px; }
}