/* EDU extends the main site's typography, navigation and color tokens. */
@font-face {
  font-family: 'EDU Chinese Handwriting';
  src: url('../fonts/ma-shan-zheng/MaShanZheng-Regular.ttf') format('truetype');
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

:root {
  --edu-ink: var(--ink);
  --edu-paper: var(--paper);
  --edu-paper-bright: var(--paper-soft);
  --edu-charcoal: var(--charcoal);
  --edu-muted: var(--muted);
  --edu-accent: var(--oxide);
  --edu-rule: rgba(129, 76, 66, .22);
}

html { scroll-padding-top: 108px; }
body { background: var(--edu-paper); }
button { font: inherit; }
/* Match the live main-site header (2026-09-06); retain shared glass and button styles. */
.site-header { grid-template-columns: minmax(0, 1fr) auto auto; }
.site-header .brand strong { width: max-content; max-width: none; height: 38px; font-size: 12px; letter-spacing: .08em; line-height: calc(38px / 3); white-space: normal; text-overflow: clip; }
.site-header .brand-word { display: block; text-transform: uppercase; white-space: nowrap; text-align: left; text-indent: 0; }
.site-header .brand-word::first-letter { color: var(--amber-bright); }
.site-header .brand-word:last-child { text-indent: -.01em; }
.page-width { width: min(1180px, calc(100% - 64px)); margin-inline: auto; }
main p, .edu-dialog p { line-height: 1.7; }
main h2, .edu-dialog h2 { margin: 0 0 24px; font-size: clamp(2.1rem, 3.5vw, 3.5rem); line-height: 1.12; letter-spacing: 0; text-wrap: pretty; }
:lang(en) main h1, :lang(en) main h2 { text-transform: uppercase; }
main h3, .edu-dialog h3 { font-size: 1.25rem; line-height: 1.35; }
.eyebrow { line-height: 1.5; }
main .eyebrow, .edu-dialog .eyebrow { color: var(--edu-accent); }
a, button { -webkit-tap-highlight-color: transparent; }
main :focus-visible, .edu-dialog :focus-visible { outline: 3px solid var(--amber); outline-offset: 5px; }

/* Full session photograph + a real, readable syllabus sheet. */
.edu-hero { display: flow-root; position: relative; min-height: 1040px; padding-top: 176px; color: var(--paper-soft); background: #171511; }
.hero-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 42%; }
.edu-hero .hero-content { position: relative; z-index: 1; padding: 0; }
.edu-hero .eyebrow { color: var(--amber-bright); }
.edu-hero h1 { max-width: 660px; margin-bottom: 22px; font-size: clamp(3rem, 4.5vw, 4.7rem); line-height: 1.07; letter-spacing: 0; }
:lang(en) .edu-hero h1 { max-width: 780px; }
.hero-title-line { white-space: nowrap; }
.edu-hero .hero-copy { max-width: 440px; margin: 0; color: rgba(255, 250, 241, .85); font-size: clamp(1rem, 1.2vw, 1.12rem); line-height: 1.75; }
.workbook-position { position: relative; z-index: 2; margin-top: 40px; margin-bottom: -122px; }
.session-workbook { position: relative; display: flex; flex-direction: column; width: 700px; min-height: 840px; max-width: 100%; padding: 60px 50px 30px; border: 1px solid #ded4c5; border-radius: 5px; background: var(--paper) url('../images/edu/workbook-paper.png') center / 100% 100%; color: var(--ink); box-shadow: 0 12px 26px rgba(25, 20, 14, .13); }
.workbook-masthead { display: flex; align-items: baseline; gap: 18px; margin-bottom: 40px; color: var(--edu-accent); }
.workbook-masthead strong { font-size: 3.8rem; line-height: 1; letter-spacing: -.03em; }
.workbook-masthead > span { font-size: 2rem; font-weight: 560; }
.workbook-note { position: absolute; top: 103px; right: 65px; margin: 0; color: var(--edu-accent); font-family: 'Bradley Hand', 'Segoe Print', cursive; font-size: 1rem; transform: rotate(-7deg); opacity: .82; }
.session-workbook .eyebrow { margin: 0 0 12px; color: var(--muted); font-size: .75rem; font-weight: 500; }
.session-workbook h2 { margin: 0 0 30px; font-size: clamp(1.8rem, 2.9vw, 2.65rem); line-height: 1.25; }
.workbook-modules { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; padding: 0; margin: 0; list-style: none; }
.workbook-modules li + li { border-left: 1px solid var(--edu-rule); }
.workbook-modules a { display: flex; flex-direction: column; height: 100%; gap: 10px; padding: 4px 18px 8px; }
.workbook-modules li:first-child a { padding-left: 0; }
.workbook-modules li:last-child a { padding-right: 0; }
.workbook-modules a:hover strong { color: var(--edu-accent); text-decoration: underline; text-underline-offset: 5px; }
.workbook-modules span { color: var(--edu-accent); font-size: .88rem; font-weight: 800; }
.workbook-modules strong { font-size: .97rem; }
.workbook-modules small { color: var(--muted); font-size: .77rem; line-height: 1.65; }
:lang(en) .workbook-modules small { text-transform: lowercase; white-space: nowrap; }
.workbook-included { margin: 22px 0 0; font-size: .78rem; color: var(--edu-accent); }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 22px; margin-top: 26px; }
.session-workbook .hero-actions { margin-top: auto; padding-top: 26px; }
.workbook-footer { display: flex; justify-content: space-between; gap: 16px; margin-top: 32px; padding-top: 18px; border-top: 1px solid var(--edu-rule); color: var(--muted); font-size: .61rem; line-height: 1.6; }
.hero-caption { position: absolute; right: max(32px, calc((100% - 1180px) / 2)); bottom: 24px; margin: 0; color: rgba(255, 250, 241, .65); font-size: .67rem; letter-spacing: .05em; }

/* Main actions retain the parent brand's pill styling. */
.edu-button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; border: 1px solid transparent; border-radius: 999px; padding: 13px 20px; font: inherit; font-size: .92rem; font-weight: 760; text-align: center; cursor: pointer; transition: background 180ms ease, transform 180ms ease; }
.edu-button.primary { color: #1a1610; background: var(--amber-bright); }
.edu-button.primary:hover { background: #ffd084; transform: translateY(-2px); }
.edu-button.secondary { border-color: rgba(255, 250, 241, .36); background: rgba(255, 250, 241, .12); color: var(--paper-soft); }
.edu-button.secondary:hover { background: rgba(255, 250, 241, .22); }
.edu-button.secondary.dark { border-color: var(--edu-rule); color: var(--ink); background: transparent; }
.workbook-link { display: inline-flex; align-items: center; min-height: 44px; color: #514940; font-size: .82rem; font-weight: 600; border-bottom: 1px solid transparent; }
.workbook-link:hover { color: var(--edu-accent); border-bottom-color: var(--edu-accent); }
.text-button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 8px 0; border: 0; border-bottom: 1px solid var(--edu-rule); border-radius: 0; background: transparent; color: var(--edu-accent); font-size: .85rem; font-weight: 700; text-align: left; cursor: pointer; }
.text-button:hover { color: var(--ink); border-bottom-color: var(--ink); }

/* The curriculum reads vertically, like annotated pages of a workbook. */
.paper-section, .dark-section { padding-block: clamp(76px, 8vw, 116px); }
.paper-section { background: var(--paper); }
.dark-section { background: var(--console); color: var(--paper-soft); }
.dark-section .eyebrow { color: var(--amber-bright); }
.learning-loop { border-top: 1px solid var(--edu-rule); padding-bottom: 92px; }
.learning-heading { display: grid; grid-template-columns: 1.2fr 1fr; align-items: start; gap: 70px; margin-bottom: 82px; }
.learning-heading h2 { max-width: 620px; font-size: clamp(1.85rem, 2.8vw, 2.7rem); line-height: 1.4; }
.learning-intro { padding-top: 32px; display: grid; grid-template-columns: 1fr 150px; gap: 26px; }
.learning-intro > p { color: var(--muted); font-size: .92rem; }
.margin-note { font-family: 'Bradley Hand', 'Segoe Print', cursive; color: var(--edu-accent); font-size: 1rem; line-height: 1.5; transform: rotate(-7deg); }
.learning-intro .margin-note { color: var(--edu-accent); }
.loop-grid { display: grid; gap: 0; }
.loop-step { display: grid; position: relative; grid-template-columns: 42px 290px minmax(0, 1fr); gap: 26px; padding: 0 0 64px; }
.loop-step:not(:last-child) { background: transparent; }
.loop-index { position: relative; align-self: stretch; color: var(--edu-accent); font-size: 1.15rem; font-weight: 780; line-height: 1.5; border-left: 1px solid var(--edu-rule); padding: 5px 0 0 12px; }
.loop-copy .eyebrow { font-size: .69rem; margin-bottom: 10px; }
.loop-copy h3 { margin-bottom: 16px; font-size: 1.4rem; }
.loop-copy > p:not(.eyebrow), .loop-copy li { color: var(--muted); font-size: .87rem; line-height: 1.7; }
.loop-copy ul { padding-left: 1.1em; margin: 18px 0; }
.loop-copy li { margin: 5px 0; }
.loop-step figure { margin: 0; align-self: start; }
.loop-step img { width: 100%; height: 270px; object-fit: cover; }
#prepare img { object-position: center 63%; }
#record img { object-position: center 68%; }
#review img { object-position: center 42%; }
.loop-step figcaption { margin-top: 12px; color: var(--edu-accent); font-family: 'Bradley Hand', 'Segoe Print', cursive; font-size: 1.35rem; line-height: 1.5; }
.loop-step .photo-credit { display: block; width: fit-content; margin-top: 4px; color: var(--muted); font-family: var(--font-sans, sans-serif); font-size: .65rem; letter-spacing: 0; text-decoration: none; }
.loop-step .photo-credit:hover { text-decoration: underline; }

/* Subsequent chapters carry the same rules, margins and oxide annotations. */
.section-lead { max-width: 760px; }
.split-lead { display: grid; max-width: none; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: clamp(40px, 8vw, 110px); align-items: end; }
.section-lead > p:last-child, .split-lead > p { color: var(--muted); }
.split-lead > p { max-width: 500px; margin-bottom: 26px; }
.section-heading.centered { display: block; max-width: 840px; margin-inline: auto; text-align: center; }
.reality { padding-top: 240px; }
.reality-bridge { max-width: 850px; margin: 44px 0 0; padding-left: 24px; border-left: 2px solid var(--edu-accent); color: var(--ink); font-size: 1.05rem; }
.reality-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 38px; margin-top: 46px; }
.reality-grid article { border-top: 1px solid var(--edu-rule); padding-top: 24px; }
.step-number { color: var(--edu-accent); font-size: .8rem; font-weight: 800; }
.reality-grid h3 { margin: 25px 0 14px; }
.reality-grid p { color: var(--muted); font-size: .92rem; }
.outcomes-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 38px clamp(40px, 8vw, 100px); align-items: start; }
.outcomes-copy ul { margin: 32px 0 0; padding-left: 1.2em; }
.outcomes-copy li { margin-bottom: 13px; line-height: 1.5; color: rgba(255,250,241,.78); }
.outcomes-video { grid-column: 1 / -1; display: grid; grid-template-columns: 42px minmax(0,.9fr) minmax(0,1.1fr); align-items: center; gap: 24px; padding: 26px 30px; border-radius: 6px; border-left: 3px solid var(--amber); background: #e8ddcc; color: var(--ink); }
.video-feature-icon { width: 40px; height: 40px; color: var(--edu-accent); }
.outcomes-video .eyebrow { color: var(--edu-accent); margin: 0 0 8px; }
.outcomes-video h3 { margin: 0; font-size: 1.1rem; }
.outcomes-video > p:last-child { margin: 0; font-size: .85rem; line-height: 1.7; color: var(--muted); }
.audience-grid article { border-top: 1px solid rgba(255,250,241,.18); padding: 24px 0; }
.audience-grid article:first-child { border-top: 0; padding-top: 0; }
.audience-grid article:last-child { padding-bottom: 0; }
.audience-label { margin-bottom: 12px; color: var(--amber-bright); font-size: .75rem; font-weight: 700; }
.audience-grid h3 { margin-bottom: 12px; font-size: 1.4rem; }
.audience-grid p:last-child { margin: 0; color: rgba(255,250,241,.72); font-size: .92rem; }
.value-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(40px, 7vw, 90px); align-items: center; }
.value-comparison { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--edu-rule); }
.value-comparison article { padding: 30px 24px; }
.value-comparison span { color: var(--muted); font-size: .75rem; }
.value-comparison h3 { margin: 44px 0 16px; }
.value-comparison p { color: var(--muted); font-size: .87rem; }
.value-comparison .value-focus { background: #e8ddcc; border-left: 1px solid var(--edu-rule); }
.value-focus span { color: var(--edu-accent); }
.stages { border-top: 1px solid var(--edu-rule); }
.stage-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 26px; margin-top: 46px; }
.stage-grid article { position: relative; display: flex; flex-direction: column; min-width: 0; padding: 0 20px 24px; border: 1px solid var(--edu-rule); border-radius: 8px; overflow: hidden; background: var(--paper-soft); box-shadow: 0 4px 14px rgba(30,24,16,.04); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.stage-grid article:focus-within { outline: 3px solid var(--amber); outline-offset: 4px; border-color: var(--edu-accent); }
@media (hover: hover) {
  .stage-grid article:hover { transform: translateY(-6px); border-color: var(--edu-accent); box-shadow: 0 14px 30px rgba(30,24,16,.14); }
}
.stage-grid img { width: calc(100% + 40px); max-width: none; height: 180px; object-fit: cover; margin: 0 -20px 20px; }
.stage-grid article > span { color: var(--edu-accent); font-weight: 800; font-size: .76rem; }
.stage-grid h3 { margin: 18px 0 12px; }
.stage-grid p { flex: 1; min-height: 100px; color: var(--muted); font-size: .87rem; }
.stage-grid .text-button.light { position: static; align-self: flex-start; margin-top: 12px; color: var(--edu-accent); }
.stage-grid [data-stage]::after { content: ''; position: absolute; inset: 0; cursor: pointer; }
.stage-pending img { filter: saturate(.65); }
.instruments, .contact-section { position: relative; display: grid; align-items: center; min-height: 640px; padding-block: 90px; overflow: hidden; background: var(--charcoal); color: var(--paper-soft); }
.instruments > img, .contact-section > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.instrument-shade, .contact-shade { position: absolute; inset: 0; background: rgba(13,12,10,.66); }
.instrument-content, .contact-content { position: relative; }
.instrument-content .eyebrow, .contact-content .eyebrow { color: var(--amber-bright); }
.instrument-content h2, .contact-content h2 { max-width: 800px; }
.instrument-content > p:not(.eyebrow), .contact-content > p:not(.eyebrow) { max-width: 620px; color: rgba(255,250,241,.84); margin-bottom: 32px; }
.recording-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; margin-top: 46px; }
.recording-grid article { border-top: 1px solid var(--edu-rule); padding-top: 14px; }
.recording-grid img { width: 100%; aspect-ratio: 16/10; object-fit: cover; margin-bottom: 24px; }
.recording-media { position: relative; width: 100%; aspect-ratio: 16/9; margin-bottom: 24px; background: var(--edu-charcoal); }
.recording-preview { position: absolute; inset: 0; display: block; width: 100%; height: 100%; padding: 0; border: 0; margin: 0; background: var(--edu-charcoal); cursor: pointer; }
.recording-preview img { display: block; height: 100%; aspect-ratio: 16/9; margin: 0; }
.recording-preview::after { content: '▶'; position: absolute; top: 50%; left: 50%; display: grid; place-items: center; width: 48px; height: 48px; transform: translate(-50%, -50%); border: 1px solid rgba(255,250,241,.7); border-radius: 50%; background: rgba(23,24,23,.65); color: var(--paper-soft); font-size: 18px; }
.recording-preview:hover::after { background: var(--edu-accent); }
.recording-player { position: absolute; inset: 0; display: block; width: 100%; height: 100%; border: 0; background: #111; }
.recording-media.is-playing .recording-preview { display: none; }
.recording-grid .eyebrow { color: var(--muted); font-size: .65rem; }
.recording-grid h3 { min-height: 54px; margin-bottom: 12px; }
.process { background: #e8dfd2; color: var(--ink); }
.process.dark-section .eyebrow { color: var(--edu-accent); }
.process-list { display: grid; grid-template-columns: repeat(6, minmax(0,1fr)); gap: 22px; list-style: none; padding: 0; margin: 60px 0 0; }
.process-list li { border-top: 1px solid var(--edu-rule); padding-top: 20px; }
.process-list span { color: var(--edu-accent); font-weight: 800; font-size: .8rem; }
.process-list h3 { margin: 34px 0 14px; }
.process-list p { color: var(--muted); font-size: .88rem; }
.faq-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(40px, 7vw, 100px); }
.faq-list { border-top: 1px solid var(--edu-rule); }
.faq-list details { border-bottom: 1px solid var(--edu-rule); }
.faq-list summary { padding: 24px 0; cursor: pointer; font-weight: 700; line-height: 1.5; }
.faq-list p { padding-bottom: 16px; color: var(--muted); }
.contact-section { min-height: 580px; }

/* Shared interactions: accessible native dialogs and bilingual content. */
.edu-dialog { width: min(840px, calc(100% - 36px)); max-height: calc(100svh - 40px); padding: clamp(26px, 4vw, 48px); border: 1px solid var(--edu-rule); border-radius: 8px; color: var(--ink); background: var(--paper-soft); box-shadow: var(--shadow); }
.edu-dialog::backdrop { background: rgba(15,14,12,.76); backdrop-filter: blur(6px); }
.edu-dialog h2 { font-size: clamp(1.8rem, 3.4vw, 2.8rem); }
.dialog-close { position: relative; z-index: 1; display: block; margin: 0 0 22px auto; min-height: 44px; border: 1px solid var(--edu-rule); border-radius: 999px; padding: 8px 18px; background: var(--paper-soft); color: var(--ink); font-size: .86rem; cursor: pointer; }
.dialog-close:hover { background: var(--paper); }
.edu-dialog > img { width: 100%; max-height: 340px; object-fit: cover; margin-bottom: 28px; }
:lang(en) .learning-dialog h2 { text-transform: uppercase; }
.learning-dialog-list { border-top: 1px solid var(--edu-rule); margin-top: 28px; padding: 16px 0 0 1.4em; }
.learning-dialog-list li { margin: 14px 0; padding-left: .35em; line-height: 1.6; color: var(--muted); }
.learning-dialog-list li::marker { color: var(--edu-accent); font-weight: 700; }
.learning-dialog-note { border-top: 1px solid var(--edu-rule); margin-top: 28px; padding-top: 20px; color: var(--edu-accent); font-size: .85rem; }
.dialog-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
:lang(zh-CN) main h2 { line-height: 1.3; }
:lang(zh-CN) .edu-hero h1 { line-height: 1.23; }
:lang(zh-CN) .session-workbook h2 { line-height: 1.4; }
:lang(zh-CN) .workbook-note, :lang(zh-CN) .margin-note, :lang(zh-CN) .loop-step figcaption { font-family: 'EDU Chinese Handwriting', 'Kaiti SC', 'STKaiti', 'KaiTi', cursive; font-weight: 400; letter-spacing: .06em; }
:lang(zh-CN) .margin-note { font-size: 1.1rem; letter-spacing: .03em; }

@media (min-width: 1600px) {
  .edu-hero { min-height: 1120px; }
}
@media (max-width: 1100px) {
  .site-header { grid-template-columns: minmax(0, 1fr) auto auto; justify-content: space-between; gap: 16px; }
  .site-header .nav-links { display: flex; }
  .site-header .lang-toggle { justify-self: end; }
  .learning-heading { gap: 40px; }
  .learning-intro { display: block; }
  .loop-step { grid-template-columns: 36px 260px minmax(0,1fr); gap: 20px; }
  .loop-step img { height: 270px; }
  .stage-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .stage-grid img { height: 250px; }
  .stage-grid p { min-height: 0; }
  .process-list { grid-template-columns: repeat(3, minmax(0,1fr)); gap: 30px; }
}
@media (max-width: 980px) {
  .site-header { gap: 12px; }
}
@media (max-width: 480px) {
  .site-header { padding-inline: 8px; }
  .site-header .brand { gap: 6px; }
  .site-header .brand strong { letter-spacing: .06em; }
  .site-header .lang-toggle { width: 44px; min-width: 44px; }
  .site-header .nav-cta { font-size: 12px; padding-inline: 10px; white-space: nowrap; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 94px; }
  .page-width { width: calc(100% - 36px); }
  .edu-hero { min-height: 0; padding-top: 128px; padding-bottom: 0; }
  .hero-image { height: 660px; object-position: 58% center; }
  .edu-hero .hero-content { padding: 0; }
  .edu-hero h1 { max-width: 90%; font-size: clamp(2.15rem, 7.7vw, 3.5rem); line-height: 1.18; }
  :lang(en) .edu-hero h1 { max-width: 100%; font-size: clamp(1.65rem, 7.2vw, 3.4rem); }
  .edu-hero .hero-copy { max-width: 340px; font-size: .95rem; }
  .edu-hero .hero-content .eyebrow { max-width: 270px; font-size: .7rem; }
  .workbook-position { margin-top: 38px; margin-bottom: -88px; }
  .session-workbook { width: 100%; min-height: 0; padding: 34px 24px 22px; }
  .workbook-masthead { margin-bottom: 34px; gap: 12px; }
  .workbook-masthead strong { font-size: 2.8rem; }
  .workbook-masthead > span { font-size: 1.5rem; }
  .workbook-note { top: 84px; right: 32px; font-size: .85rem; }
  .session-workbook h2 { font-size: clamp(1.65rem, 6vw, 2.5rem); }
  .workbook-modules a { padding-inline: 10px; gap: 10px; }
  .workbook-modules small { font-size: .71rem; }
  :lang(en) .workbook-modules a { padding-inline: 6px; }
  :lang(en) .workbook-modules small { font-size: .65rem; }
  .workbook-modules strong { font-size: .85rem; }
  .workbook-included { font-size: .76rem; }
  .session-workbook .hero-actions { margin-top: 26px; padding-top: 0; gap: 8px; align-items: stretch; }
  .session-workbook .edu-button { width: 100%; }
  .workbook-link { justify-content: center; }
  .workbook-footer { margin-top: 32px; font-size: .54rem; gap: 8px; }
  .workbook-footer span { text-align: right; }
  .hero-caption { display: none; }
  .reality { padding-top: 150px; }
  .learning-loop { padding-bottom: 68px; }
  .learning-heading { grid-template-columns: 1fr; gap: 8px; margin-bottom: 46px; }
  .learning-heading h2 { font-size: 1.85rem; }
  .learning-intro { padding: 0; }
  .learning-intro .margin-note { display: none; }
  .loop-step { grid-template-columns: 28px minmax(0,1fr); gap: 16px; padding-bottom: 44px; }
  .loop-index { grid-row: 1 / 3; font-size: .9rem; padding-left: 6px; }
  .loop-step figure { grid-column: 2; }
  .loop-step img { height: auto; aspect-ratio: 16/9; }
  .loop-step figcaption { font-size: 1.1rem; }
  .loop-copy h3 { font-size: 1.4rem; }
  main h2 { font-size: clamp(1.8rem, 7vw, 2.8rem); }
  .split-lead, .outcomes-layout, .value-layout, .faq-layout { grid-template-columns: 1fr; gap: 24px; }
  .outcomes-video { grid-template-columns: 32px minmax(0,1fr); gap: 14px; padding: 22px; }
  .video-feature-icon { width: 32px; height: 32px; }
  .outcomes-video > p:last-child { grid-column: 1 / -1; }
  .split-lead > p { margin-bottom: 0; }
  .reality-grid { grid-template-columns: 1fr; gap: 24px; }
  .reality-grid h3 { margin-top: 14px; }
  .reality-grid p { margin-bottom: 0; }
  .stage-grid, .recording-grid { grid-template-columns: 1fr; gap: 38px; }
  .stage-grid img { height: auto; aspect-ratio: 16/10; }
  .recording-grid h3 { min-height: 0; }
  .value-comparison { grid-template-columns: 1fr; }
  .value-comparison article { padding: 24px; }
  .value-comparison h3 { margin-top: 20px; }
  .value-comparison .value-focus { border-left: 0; border-top: 1px solid var(--edu-rule); }
  .process-list { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 30px 22px; margin-top: 40px; }
  .process-list h3 { margin-top: 20px; }
  .instruments, .contact-section { min-height: 660px; padding-block: 76px; }
  .instruments > img { object-position: 60% center; }
  .contact-section .hero-actions { align-items: stretch; }
  .contact-section .edu-button { width: 100%; }
  .edu-dialog { width: calc(100% - 24px); padding: 22px; }
  .edu-dialog h2 { font-size: 1.8rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}