/* Editorial direction: warm paper, green ink, documentary photographs.
   This file owns the homepage redesign; styles.css retains shared foundations. */
.site-content {
  --paper:#f4f0e7; --paper-deep:#e8e2d5; --ink:#253b33;
  --muted:#59625b; --brick:#9e392d; --line:#c9c9bc;
  --light-ink:#f8f4eb; --forest:#253b33;
  /* Original principles palette is intentionally preserved. */
  --signal:#be302a; --carbon:#151515; --white:#faf9f5;
  background:var(--paper); color:var(--ink);
}
.section-shell, .header-inner { width:min(1240px,calc(100% - 96px)); }
h1,h2,h3 { letter-spacing:-.045em; }
h2 em { font-weight:400; }
p { text-wrap:pretty; }
.eyebrow,.section-label { font-size:11px; letter-spacing:.11em; font-weight:700; }
.site-header { background:var(--paper); }
.site-nav { gap:26px; }
.site-nav a { font-size:11px; font-weight:600; }
.brand-logo-approved { height:52px; }
.button { font-size:11px; font-weight:700; letter-spacing:.055em; min-height:46px; padding:14px 19px; }
.button-primary { background:var(--ink); border-color:var(--ink); color:var(--paper); }
.button-primary:hover,.button-primary:focus-visible { background:var(--brick); border-color:var(--brick); color:var(--paper); }
.text-link { text-underline-offset:6px; }
:focus-visible { outline:2px solid var(--brick); outline-offset:5px; }

/* Opening spread: a shared headline, with text and documentary context below. */
.hero { grid-template-columns:.72fr 1.28fr; gap:36px 76px; padding:54px 0 72px; align-items:start; }
.hero-copy { grid-column:1/-1; max-width:none; }
.hero-kicker { display:flex; justify-content:space-between; align-items:center; border-bottom:1px solid var(--line); padding-bottom:18px; margin-bottom:28px; }
.hero-kicker span { color:var(--muted); font-size:10px; font-weight:500; }
h1 { max-width:1100px; font-size:clamp(56px,6.4vw,86px); line-height:1.05; margin:0; letter-spacing:-.055em; }
h1 em { color:var(--brick); }
.hero-introduction { padding-top:8px; }
.hero-summary { max-width:35ch; font-size:18px; line-height:1.65; margin:0; }
.hero-actions { margin-top:30px; }
.hero-actions .button { display:inline-flex; gap:25px; align-items:center; }
.hero-visual { align-self:start; min-height:0; overflow:visible; background:transparent; }
.hero-visual::after { display:none; }
.hero-visual img { position:static; width:100%; height:auto; aspect-ratio:1.85; object-fit:cover; object-position:50% 50%; filter:none; }
.hero-visual figcaption { position:static; max-width:none; padding:12px 0 0; display:flex; justify-content:space-between; gap:16px; font-size:11px; color:var(--muted); line-height:1.5; }
.hero-visual figcaption span { text-transform:uppercase; letter-spacing:.065em; font-size:10px; }

/* A quiet reading interval before the signature principles sequence. */
.home-approach { background:var(--paper-deep); padding:0; border:0; }
.approach-inner { padding-top:32px; padding-bottom:64px; }
.home-approach .section-label { display:flex; justify-content:space-between; border-bottom:1px solid #bfc1b3; padding-bottom:20px; margin-bottom:38px; }
.home-approach .section-label span { color:var(--muted); font-weight:500; }
.home-approach .intro-grid { grid-template-columns:1fr 1fr; gap:76px; align-items:start; }
.home-approach h2 { font-size:clamp(40px,4.3vw,60px); line-height:1.08; }
.home-approach h2 em { color:var(--brick); }
.intro-copy p { font-size:17px; line-height:1.7; color:var(--muted); }
.approach-track { display:flex; align-items:center; gap:20px; margin-top:32px; font-size:11px; text-transform:uppercase; letter-spacing:.09em; }
.approach-track i { font-style:normal; color:var(--brick); font-size:20px; }

.foundation-section { padding:88px 0 0; background:var(--white); --ink:var(--carbon); --muted:#55544f; --brick:var(--signal); --line:#cfcec7; }
.foundation-section > .section-shell > .eyebrow { margin-bottom:36px; }
.foundation-section > .section-shell > .intro-grid { grid-template-columns:1.15fr .85fr; gap:76px; }
.foundation-section h2 { font-size:clamp(44px,4.8vw,68px); line-height:1.05; }
.foundation-section .intro-copy p { font-size:17px; }
.principles-story { display:grid; grid-template-columns:.9fr 1.1fr; gap:100px; align-items:start; margin-top:90px; }
.principle-stage { position:sticky; top:calc(var(--header-height) + 30px); padding:28px; color:var(--white); background:var(--signal); }
.stage-meta { display:flex; justify-content:space-between; gap:10px; font-size:10px; letter-spacing:.07em; text-transform:uppercase; }
.judgment-mark { display:block; width:100%; max-height:330px; margin:18px auto 12px; }
.judgment-frame { transform-origin:200px 200px; transition:transform .65s cubic-bezier(.2,.8,.2,1); }
.judgment-eyes, .judgment-check, .judgment-build { transform-origin:200px 185px; transition:opacity .3s, transform .55s; }
.judgment-check, .judgment-build { opacity:0; transform:scale(.75); }
.principle-stage[data-step="1"] .judgment-eyes, .principle-stage[data-step="2"] .judgment-eyes { opacity:0; transform:scale(.75); }
.principle-stage[data-step="1"] .judgment-check, .principle-stage[data-step="2"] .judgment-build { opacity:1; transform:scale(1); }
.principle-stage[data-step="1"] .judgment-frame { transform:rotate(-4deg) scale(.96); }
.stage-word { margin-bottom:28px; font:clamp(36px,4vw,57px)/1 var(--serif); letter-spacing:-.05em; }
.stage-progress { display:flex; gap:7px; }
.stage-progress i { flex:1; height:3px; background:#ffffff45; transition:background .3s; }
.stage-progress i:first-child, [data-step="1"] .stage-progress i:nth-child(2), [data-step="2"] .stage-progress i { background:var(--white); }
.foundation-principles { display:block; margin:0; }
.foundation-principles article { position:relative; min-height:370px; padding:44px 0 70px; border-top:1px solid var(--line); }
.foundation-principles article::before { position:absolute; top:-1px; left:0; width:100%; height:2px; content:""; background:var(--signal); transform:scaleX(0); transform-origin:left; transition:transform .7s cubic-bezier(.2,.8,.2,1); }
.foundation-principles article.is-current::before { transform:scaleX(1); }
.foundation-principles h3 { max-width:13ch; margin:28px 0 24px; font-size:clamp(36px,3.6vw,54px); }
.foundation-principles p { max-width:44ch; font-size:17px; line-height:1.6; }

/* The origin is a photographic spread, with a comfortable continuous reading column. */
.foundation-origin { display:grid; grid-template-columns:1.2fr .8fr; gap:72px; max-width:none; margin-top:60px; padding:72px 0 90px; border-top:1px solid var(--line); align-items:center; }
.origin-copy { grid-column:2; grid-row:1; }
.origin-copy .eyebrow { color:#9e392d; margin-bottom:25px; }
.origin-copy h3 { font-size:clamp(38px,3.7vw,50px); line-height:1.08; margin-bottom:28px; max-width:15ch; }
.origin-copy > p:not(.eyebrow) { color:var(--muted); font-size:16px; line-height:1.75; margin-bottom:0; }
.documentary-image { margin:0; min-width:0; }
.documentary-image img { display:block; width:100%; height:auto; object-fit:cover; }
.documentary-image figcaption { position:static; padding:14px 0 0; font-size:11px; line-height:1.5; color:var(--muted); }
.origin-image-slot { grid-column:1; grid-row:1; }
.origin-image-slot img { aspect-ratio:4/3; object-position:50% 50%; }

/* Student ownership is shown through people, not oversized acronym lettering. */
.aiya-section { padding:80px 0; background:var(--forest); color:var(--light-ink); }
.aiya-lead { display:grid; grid-template-columns:1fr .9fr; column-gap:100px; row-gap:32px; align-items:start; }
.aiya-copy { grid-column:1; grid-row:1; }
.aiya-section .eyebrow { color:#d7c496; margin-bottom:30px; }
.aiya-section h2 { font-size:clamp(50px,5.4vw,76px); line-height:1.05; }
.aiya-section h2 em { color:#e0cbb0; }
.aiya-body { grid-column:1; grid-row:2; align-self:start; max-width:46ch; }
.aiya-body p { color:#e0e3d9; font-size:17px; line-height:1.7; margin:0 0 24px; }
.aiya-body .button { margin-top:10px; }
.aiya-section .button-light { color:var(--light-ink); border-color:#9eafa1; background:transparent; }
.aiya-section .button-light:hover,.aiya-section .button-light:focus-visible { background:var(--light-ink); color:var(--ink); }
.aiya-section :focus-visible { outline-color:#e0cbb0; }
.student-image-slot { grid-column:2; grid-row:1/span 2; }
.student-image-slot img { aspect-ratio:4/5; object-position:50% 48%; }
.student-image-slot figcaption { color:#d6ddcf; }

/* A catalogue, not simulated article covers or a set of promotional cards. */
.publications-section { padding:92px 0 84px; background:var(--paper); }
.publications-grid { display:block; }
.publications-intro { display:grid; grid-template-columns:1.1fr .9fr; column-gap:76px; }
.publications-intro > .section-label { grid-column:1/-1; margin-bottom:28px; }
.publications-intro > h2 { grid-column:1; grid-row:2/span 2; font-size:clamp(48px,5.4vw,74px); line-height:1.04; }
.publications-intro > h2 em { color:var(--brick); }
.publications-intro > p { grid-column:2; font-size:17px; max-width:44ch; color:var(--muted); margin:6px 0 0; }
.publications-intro > .catalogue-note { font-size:11px; border:0; padding:0; margin:16px 0 0; }
.publications-groups { display:block; grid-column:1/-1; margin-top:58px; }
.publication-group + .publication-group { margin-top:52px; }
.publication-group-heading { font:700 11px/1.5 var(--sans); text-transform:uppercase; letter-spacing:.1em; padding:15px 0; margin:0; border-top:1px solid var(--ink); border-bottom:1px solid var(--line); }
.publication-list { border:0; }
.books-group .publication-list { display:grid; grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); gap:60px; }
.books-group .publication-list article { padding:28px 0 0; border:0; }
.publication-list h4 { font:400 34px/1.1 var(--serif); letter-spacing:-.035em; margin:0 0 15px; }
.publication-list article > p { font-size:15px; line-height:1.65; color:var(--muted); max-width:48ch; }
.publication-list .catalogue-index { font-size:10px; text-transform:uppercase; letter-spacing:.09em; color:var(--brick); margin-bottom:20px; }
.publication-list .publication-subtitle { color:var(--ink); font-size:16px; max-width:35ch; font-style:italic; }
.publication-list .publication-author { font-size:12px; color:var(--brick); }
.publication-cover { width:min(100%,260px); margin:0 0 24px; }
.publication-cover img { display:block; width:100%; height:auto; box-shadow:8px 10px 0 rgba(37,59,51,.13); }
/* The second cover is taller in its supplied aspect ratio. Match the first cover's
   footprint so both book titles begin on the same baseline. */
.books-group .publication-list article:nth-child(2) .publication-cover { aspect-ratio:932/1388; }
.books-group .publication-list article:nth-child(2) .publication-cover img { width:auto; height:100%; transform:translateY(-9px); }
.articles-group .publication-list { display:grid; grid-template-columns:1fr 1fr; gap:60px; }
.articles-group .publication-list article { border:0; padding:28px 0 0; }
.article-image { margin:0 0 24px; overflow:hidden; background:#e8e3d8; }
.article-image img { display:block; width:100%; height:auto; }
.article-image[data-series="chinese"] { aspect-ratio:1635/1079; }
.article-image[data-series="english"] { aspect-ratio:986/724; }
.signup-panel { display:grid; grid-template-columns:1fr 1fr; gap:0 76px; color:var(--ink); background:transparent; padding:40px 0 0; margin-top:52px; border-top:1px solid var(--ink); }
.signup-panel .eyebrow { grid-column:1; color:var(--brick); margin-bottom:17px; }
.signup-panel h2 { grid-column:1; font-size:39px; line-height:1.12; margin-bottom:20px; }
.signup-panel > p:not(.eyebrow):not(.supporter-note) { grid-column:1; max-width:42ch; color:var(--muted); font-size:15px; }
.signup-panel .signup-form { grid-column:2; grid-row:1/span 3; align-self:center; }
.signup-panel .supporter-note { grid-column:2; padding:0; margin:0; border:0; color:var(--muted); font-size:11px; }
.signup-fields input { background:#fcfaf5; border:1px solid #899486; color:var(--ink); border-radius:0; font:16px var(--sans); min-width:0; }
.signup-panel .signup-fields button { border:1px solid var(--ink); background:var(--ink); color:var(--paper); min-height:48px; }
.signup-panel .signup-fields button:hover { background:var(--brick); border-color:var(--brick); }
.signup-panel .form-disclosure { color:var(--muted); }
.signup-panel .form-message { color:var(--brick); }

/* The closing invitation is quieter than the work it supports. */
.partners-section { padding:64px 0; background:var(--paper-deep); color:var(--ink); }
.partners-grid { grid-template-columns:1fr 1fr; gap:76px; align-items:start; }
.partners-section .section-label { color:var(--brick); margin-bottom:28px; }
.partners-section h2 { font-size:clamp(40px,4vw,57px); line-height:1.08; }
.partner-actions { padding:0; border:0; gap:25px; }
.partner-actions p { font:16px/1.75 var(--sans); color:var(--muted); letter-spacing:0; }
.partner-actions .button { background:transparent; border-color:var(--ink); color:var(--ink); }
.partner-actions .button:hover,.partner-actions .button:focus-visible { background:var(--ink); color:var(--paper); }
.cta-section { display:grid; grid-template-columns:1.2fr .8fr; gap:0 76px; padding:80px 0 88px; }
.cta-rule { display:none; }
.cta-section .eyebrow { grid-column:1/-1; margin-bottom:28px; }
.cta-section h2 { grid-column:1; grid-row:2/span 2; margin:0; font-size:clamp(46px,4.8vw,66px); line-height:1.08; }
.cta-section h2 em { color:var(--brick); }
.cta-copy { grid-column:2; margin:0 0 25px; font-size:16px; line-height:1.7; }
.get-involved-actions { grid-column:2; align-self:start; }
.site-footer { background:var(--forest); padding-top:50px; }
.footer-grid { grid-template-columns:.65fr 1.5fr .65fr .65fr; gap:40px; padding-bottom:42px; }
.brand-footer .brand-logo-approved { height:86px; }
.footer-contact .eyebrow { color:#d7c496; }
.footer-contact a { font-size:25px; }
.footer-contact p:not(.eyebrow) { max-width:35ch; line-height:1.6; }
.footer-links { grid-template-columns:1fr; gap:4px; }
.footer-links a { display:flex; align-items:center; min-height:36px; font-size:10px; letter-spacing:.05em; font-weight:500; }
.footer-marquee { overflow:hidden; margin:0 0 28px; padding:18px 0 23px; border-top:1px solid rgba(248,244,235,.22); border-bottom:1px solid rgba(248,244,235,.22); color:rgba(248,244,235,.92); font:800 clamp(48px,7vw,104px)/.82 var(--sans); letter-spacing:-.025em; white-space:nowrap; }
.footer-marquee-track { display:flex; width:max-content; min-width:max-content; animation:footer-drift 70s linear infinite; will-change:transform; }
.footer-marquee-group { display:flex; flex:0 0 auto; min-width:max-content; }
.footer-marquee span { display:block; flex:0 0 auto; padding-right:.34em; }
.footer-marquee:hover .footer-marquee-track { animation-play-state:paused; }
.footer-bottom { font-size:9px; letter-spacing:.05em; border-top:1px solid #65776a; }
.site-footer :focus-visible { outline-color:#e0cbb0; }

@media (max-width:1100px) and (min-width:821px) {
  .section-shell,.header-inner { width:calc(100% - 64px); }
  .hero,.home-approach .intro-grid,.foundation-section > .section-shell > .intro-grid,.foundation-origin,.aiya-lead,.partners-grid,.publications-intro,.signup-panel,.cta-section { column-gap:44px; }
  .principles-story { gap:55px; }
  .footer-grid { gap:24px; grid-template-columns:.5fr 1.5fr .65fr .65fr; }
  .footer-contact a { font-size:21px; }
  .site-nav { gap:18px; }
}
@media (max-width:820px) {
  .section-shell,.header-inner { width:calc(100% - 48px); }
  .site-nav { background:var(--paper); top:100%; right:-24px; padding:20px 24px; }
  .site-nav a { font-size:12px; }
  .hero { grid-template-columns:1fr 1.1fr; gap:30px; padding:40px 0 52px; }
  .hero-kicker span { display:none; }
  h1 { font-size:clamp(48px,7.2vw,65px); }
  .hero-summary { font-size:16px; }
  .hero-visual img { aspect-ratio:1; }
  .hero-visual figcaption { display:block; }
  .hero-visual figcaption span { display:block; margin-bottom:4px; }
  .hero-actions .button { gap:14px; }
  .home-approach .intro-grid,.foundation-section > .section-shell > .intro-grid,.partners-grid { grid-template-columns:1fr; gap:28px; }
  .home-approach .section-label span { display:none; }
  .home-approach h2 { font-size:46px; }
  .home-approach .intro-copy { max-width:60ch; }
  .approach-inner { padding-bottom:48px; }
  .foundation-section { padding-top:58px; }
  .foundation-section h2 { font-size:48px; }
  .principles-story { grid-template-columns:.7fr 1fr; gap:30px; margin-top:40px; }
  .principle-stage { top:calc(var(--header-height) + 18px); padding:18px; }
  .stage-meta { flex-wrap:wrap; font-size:9px; }
  .stage-word { font-size:30px; }
  .foundation-principles article { min-height:370px; padding-top:28px; }
  .foundation-principles h3 { font-size:36px; }
  .foundation-principles p { font-size:16px; }
  .foundation-origin { gap:32px; grid-template-columns:1fr 1fr; padding:48px 0 58px; margin-top:30px; }
  .origin-copy h3 { font-size:36px; }
  .origin-image-slot img { aspect-ratio:4/3; }
  .aiya-section { padding:58px 0; }
  .aiya-lead { grid-template-columns:1fr 1fr; gap:28px 32px; }
  .aiya-section h2 { font-size:49px; }
  .aiya-copy { grid-column:1/-1; }
  .aiya-body { grid-column:1; }
  .student-image-slot { grid-row:2; }
  .student-image-slot img { aspect-ratio:3/4; }
  .aiya-body p { font-size:16px; }
  .publications-section { padding:58px 0; }
  .publications-intro { column-gap:35px; }
  .publications-intro > h2 { font-size:48px; }
  .books-group .publication-list,.articles-group .publication-list { gap:32px; }
  .signup-panel { column-gap:32px; }
  .signup-panel h2 { font-size:34px; }
  .signup-fields { flex-direction:column; gap:8px; }
  .partners-section { padding:50px 0; }
  .cta-section { grid-template-columns:1fr 1fr; column-gap:35px; padding:58px 0; }
  .cta-section h2 { font-size:45px; }
  .footer-grid { grid-template-columns:.7fr 1.3fr; gap:25px 32px; }
  .brand-footer { grid-column:1; }
  .footer-contact { grid-column:2; }
  .footer-links { grid-row:2; }
}
@media (max-width:560px) {
  .section-shell,.header-inner { width:calc(100% - 40px); }
  .site-nav { right:-20px; }
  .hero { grid-template-columns:1fr; gap:28px; padding:28px 0 42px; }
  .hero-kicker { padding-bottom:16px; margin-bottom:24px; font-size:10px; }
  h1 { font-size:clamp(41px,10.4vw,58px); line-height:1.08; letter-spacing:-.05em; }
  .hero-copy,.hero-introduction { grid-column:1; }
  .hero-introduction { padding:0; }
  .hero-summary { max-width:none; font-size:16px; line-height:1.65; }
  .hero-actions { margin-top:23px; }
  .hero-visual img { aspect-ratio:1.5; }
  .hero-visual figcaption { font-size:10px; }
  .home-approach h2 { font-size:40px; }
  .home-approach h2 br { display:none; }
  .home-approach .section-label { margin-bottom:27px; font-size:10px; }
  .approach-track { margin-top:24px; }
  .intro-copy p { font-size:16px; }
  .foundation-section h2 { font-size:40px; }
  .foundation-section h2 br { display:none; }
  .principles-story { display:block; }
  .principle-stage { position:relative; top:auto; margin-bottom:35px; }
  .judgment-mark { height:220px; margin:5px auto; }
  .stage-meta { font-size:10px; }
  .stage-word { margin-bottom:18px; font-size:38px; }
  .foundation-principles article { min-height:0; padding:28px 0 38px; }
  .foundation-principles h3 { max-width:none; margin-top:20px; }
  .foundation-origin { grid-template-columns:1fr; gap:28px; padding:40px 0 48px; }
  .origin-copy { grid-column:1; grid-row:1; }
  .origin-copy h3 { max-width:none; font-size:38px; }
  .origin-image-slot { grid-column:1; grid-row:2; }
  .origin-image-slot img { aspect-ratio:4/3; }
  .aiya-section { padding:48px 0; }
  .aiya-lead { grid-template-columns:1fr; gap:28px; }
  .aiya-copy { grid-column:1; grid-row:1; }
  .aiya-section h2 { font-size:48px; }
  .aiya-section .eyebrow { font-size:10px; margin-bottom:24px; }
  .aiya-body { grid-column:1; grid-row:2; }
  .student-image-slot { grid-column:1; grid-row:3; }
  .student-image-slot img { aspect-ratio:4/5; }
  .publications-intro { display:block; }
  .publications-intro > h2 { font-size:46px; margin-bottom:26px; }
  .publications-intro > p { font-size:16px; }
  .publications-groups { margin-top:38px; }
  .books-group .publication-list,.articles-group .publication-list { grid-template-columns:1fr; gap:28px; }
  .books-group .publication-list article + article { border-top:1px solid var(--line); }
  .publication-list h4 { font-size:32px; }
  .signup-panel { display:block; padding-top:30px; margin-top:40px; }
  .signup-panel .signup-form { margin:25px 0; }
  .signup-fields input { min-height:48px; }
  .partners-section h2 { font-size:40px; }
  .partners-section h2 br { display:none; }
  .cta-section { display:block; padding:48px 0 56px; }
  .cta-section h2 { font-size:43px; margin-bottom:28px; }
  .cta-section h2 br { display:none; }
  .footer-grid { grid-template-columns:1fr 1fr; gap:24px; padding-bottom:30px; }
  .brand-footer { grid-column:1/-1; }
  .footer-contact { grid-column:1/-1; }
  .footer-contact a { font-size:24px; }
  .footer-links { grid-row:auto; }
  .footer-links a { min-height:44px; }
  .footer-bottom { font-size:9px; gap:12px; }
}
@media (prefers-reduced-motion:reduce) {
  .judgment-frame,.judgment-eyes,.judgment-check,.judgment-build { transition:none; }
  .principle-stage .judgment-frame,.principle-stage .judgment-eyes { transform:none; }
}