/* City Stories — landing-only layer. The learning workspace is unchanged. */
.landing-body { background: #f5f4ee; }
.landing-body .visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.landing-body .site-header { position: relative; z-index: 20; height: 100px; border-bottom: 1px solid var(--line); gap: 24px; }
.landing-body .site-header nav { gap: 26px; margin-left: auto; }
.landing-body .site-header nav a { color: var(--muted); }
.landing-body .site-header nav a:hover { color: var(--red); }
.landing-menu-toggle { display: none; border: 0; background: none; color: var(--ink); min-height: 44px; cursor: pointer; padding: 8px; font-size: 13px; }
.landing-body .city-hero { padding: 64px 40px 68px; min-height: 720px; grid-template-columns: minmax(0,1.06fr) minmax(0,1fr); gap: 44px; align-items: center; }
.city-hero .hero-copy { position: relative; z-index: 1; }
.city-hero .city-eyebrow { display: flex; gap: 10px; align-items: center; letter-spacing: .075em; font-size: 10px; margin-bottom: 25px; }
.city-eyebrow>span { width: 7px; height: 7px; background: var(--red); border-radius: 50%; flex: 0 0 auto; }
.landing-body .city-hero h1 { font-size: clamp(44px,4.7vw,66px); line-height: 1.08; letter-spacing: -.055em; margin: 0; }
.rotating-line { display: flex; align-items: center; gap: 14px; min-width: 0; max-width: 430px; margin: 18px 0 0; }
.hero-phrase { flex: 1; color: var(--red); font: italic 500 clamp(25px,2.65vw,37px)/1.3 var(--font-display); letter-spacing: -.03em; margin: 0; min-width: 0; }
#hero-phrase { display: inline-block; opacity: 1; transform: translateY(0); transition: opacity .18s ease, transform .18s ease; }
#hero-phrase.is-changing { opacity: 0; transform: translateY(5px); }
.motion-toggle { display: inline-grid; place-items: center; flex-shrink: 0; width: 34px; height: 34px; border: 1px solid #c2c4b6; border-radius: 50%; background: transparent; color: #686b62; font-size: 13px; cursor: pointer; }
.motion-toggle:hover { color: var(--red); border-color: var(--red); }
.city-hero .lead { font-size: 16px; line-height: 1.85; margin-top: 22px; max-width: 470px; }
.city-hero .hero-actions { gap: 12px 22px; }
.city-hero .hero-actions>.button { padding: 14px 19px; }
.city-hero .trust-list { gap: 10px 17px; font-size: 11px; margin-top: 25px; }
.city-scene { position: relative; margin: 0; min-width: 0; padding: 0 20px 46px 0; }
.city-art-frame { position: relative; overflow: hidden; border-radius: 150px 5px 5px 5px; background: #e3e3d7; aspect-ratio: 1 / 1.05; }
.city-art { display: block; width: 100%; height: 100%; object-fit: cover; }
.city-scene::before { content: ''; position: absolute; top: 24px; right: 7px; bottom: 64px; width: 3px; background: var(--red); }
.city-side-label { position: absolute; top: 38px; right: -12px; writing-mode: vertical-rl; font-size: 9px; letter-spacing: .16em; color: var(--muted); background: var(--paper); padding: 10px 0; }
.city-caption { position: absolute; left: -25px; right: 50px; bottom: 42px; display: flex; gap: 18px; align-items: center; padding: 20px 24px; border: 1px solid var(--line-dark); border-left: 3px solid var(--red); background: var(--white); box-shadow: 0 8px 18px #292c280a; }
.city-caption>[lang] { font-size: 25px; line-height: 1.5; color: var(--red); white-space: nowrap; }
.city-caption>span+span { border-left: 1px solid var(--line); padding-left: 18px; font-size: 12px; color: var(--ink); }
.city-caption small { display: block; font-size: 11px; color: var(--muted); margin-top: 2px; }
.city-index { position: absolute; bottom: 9px; right: 22px; font-size: 9px; letter-spacing: .16em; color: var(--muted); }
.landing-body .city-strip { gap: 32px; padding-block: 26px; }
.city-strip>span { flex: 0 0 auto; }
.city-strip p { margin-right: auto; }
.city-strip .text-link { white-space: nowrap; }
.landing-body .lesson-preview { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 100px; align-items: center; }
.lesson-preview-copy h2 { margin: 12px 0 22px; }
.lesson-preview-copy>p:not(.eyebrow) { max-width: 43ch; color: var(--muted); line-height: 1.9; font-size: 15px; }
.lesson-preview-copy .text-link { margin-top: 18px; }
.lesson-preview .hero-card { transform: none; }
.landing-body .path-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
.landing-body .path-card { min-width: 0; }
.landing-body .path-card.dark { grid-column: 1 / -1; min-height: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 8px 32px; }
.landing-body .path-card.dark .level-badge { display: none; }
.landing-body .path-card.dark .week, .landing-body .path-card.dark h3 { grid-column: 1; }
.landing-body .path-card.dark p { grid-column: 1; margin-bottom: 0; }
.landing-body .path-card.dark ul { grid-column: 2; grid-row: 1 / 4; align-self: center; }
.landing-body section[id] { scroll-margin-top: 24px; }
@media(min-width:861px) { .landing-body .site-header nav { display: flex !important; } }
@media(max-width:1100px) {
  .landing-body .site-header nav { gap: 16px; font-size: 12px; }
  .landing-body .city-hero { gap: 30px; min-height: 650px; }
  .city-caption { left: -15px; right: 30px; padding: 16px; gap: 12px; }
  .city-caption>[lang] { font-size: 20px; }
  .city-caption>span+span { font-size: 10px; padding-left: 12px; }
  .landing-body .lesson-preview { gap: 50px; }
}
@media(max-width:860px) {
  .landing-body .site-header { height: 82px; padding-inline: 24px; gap: 16px; }
  .landing-menu-toggle:not([hidden]) { display: inline-flex; gap: 8px; align-items: center; margin-left: auto; }
  .landing-body .site-header nav { position: absolute; top: calc(100% - 1px); left: 0; right: 0; padding: 16px 24px; margin: 0; background: var(--white); border-bottom: 1px solid var(--line); box-shadow: 0 10px 16px #292c2808; flex-direction: column; gap: 0; }
  .landing-body .site-header nav:not([hidden]) { display: flex; }
  .landing-body .site-header nav a { font-size: 14px; }
  .landing-body .site-header:has(.landing-menu-toggle[hidden]) { flex-wrap: wrap; height: auto; padding-block: 18px; }
  .landing-body .site-header:has(.landing-menu-toggle[hidden]) nav { position: static; order: 3; width: 100%; padding: 0; flex-direction: row; flex-wrap: wrap; gap: 14px; box-shadow: none; }
  .landing-body .city-hero { grid-template-columns: minmax(0,1.1fr) minmax(0,1fr); padding: 52px 24px; gap: 26px; min-height: 0; }
  .landing-body .city-hero h1 { font-size: 43px; }
  .city-hero .city-eyebrow { font-size: 9px; margin-bottom: 20px; }
  .city-hero .lead { font-size: 14px; }
  .city-hero .hero-actions>.button { font-size: 12px; padding: 12px 14px; }
  .city-hero .trust-list { font-size: 10px; }
  .hero-phrase { font-size: 26px; }
  .city-art-frame { aspect-ratio: 1 / 1.35; border-top-left-radius: 100px; }
  .city-caption { flex-direction: column; align-items: flex-start; gap: 4px; padding: 12px 16px; right: 28px; left: -10px; }
  .city-caption>span+span { border-left: 0; padding-left: 0; }
  .city-caption small { display: inline; margin-left: 8px; }
  .city-caption>[lang] { font-size: 22px; }
  .landing-body .city-strip { margin-inline: 24px; flex-wrap: wrap; gap: 16px 24px; }
  .city-strip .text-link { margin-left: auto; }
  .landing-body .lesson-preview { gap: 32px; padding: 60px 24px; }
  .landing-body .path-grid { grid-template-columns: 1fr; }
  .landing-body .path-card.dark { display: block; }
}
@media(max-width:600px) {
  .landing-body .site-header { height: 76px; padding-inline: 20px; gap: 8px; }
  .landing-body .site-header .brand { font-size: 17px; gap: 8px; }
  .landing-body .site-header .brand-mark { width: 30px; height: 34px; font-size: 22px; }
  .landing-body .site-header .button { padding: 8px 10px; font-size: 11px; min-height: 40px; }
  .landing-menu-toggle { font-size: 11px; padding: 8px 4px; gap: 5px !important; }
  .landing-body .city-hero { grid-template-columns: minmax(0,1fr); padding: 38px 24px 32px; gap: 32px; }
  .landing-body .city-hero h1 { font-size: clamp(39px,10vw,55px); max-width: 100%; }
  .city-hero .city-eyebrow { font-size: 8px; gap: 7px; }
  .hero-phrase { font-size: clamp(24px,6.6vw,32px); }
  .rotating-line { gap: 10px; margin-top: 13px; }
  .motion-toggle { width: 30px; height: 30px; }
  .city-hero .lead { margin-block: 18px 22px; font-size: 14px; }
  .city-hero .hero-actions { align-items: flex-start; gap: 8px; flex-direction: column; }
  .city-hero .hero-actions>.button { font-size: 13px; }
  .city-hero .trust-list { gap: 7px 12px; font-size: 10px; margin-top: 18px; }
  .city-scene { padding: 0 15px 38px 10px; }
  .city-art-frame { aspect-ratio: 1.15; border-top-left-radius: 100px; }
  .city-caption { left: 0; right: 32px; bottom: 35px; padding: 12px 16px; flex-direction: row; align-items: center; gap: 14px; }
  .city-caption>[lang] { font-size: 21px; }
  .city-caption>span+span { font-size: 9px; border-left: 1px solid var(--line); padding-left: 12px; }
  .city-caption small { display: block; margin: 2px 0 0; font-size: 9px; }
  .city-side-label { right: -10px; font-size: 8px; }
  .city-index { font-size: 8px; right: 16px; bottom: 5px; }
  .landing-body .city-strip { margin-inline: 24px; padding-block: 22px; align-items: flex-start; gap: 15px; }
  .city-strip>span { font-size: 23px; }
  .city-strip p { font-size: 12px; flex-basis: 100%; order: 2; }
  .city-strip .text-link { font-size: 11px; min-height: 30px; }
  .landing-body .lesson-preview { grid-template-columns: minmax(0,1fr); gap: 28px; padding-top: 48px; }
  .lesson-preview-copy h2 br:last-child { display: none; }
  .lesson-preview-copy>p:not(.eyebrow) { font-size: 14px; }
  .lesson-preview .sample-top { padding: 16px; font-size: 10px; }
  .lesson-preview .sample-tag { font-size: 8px; }
  .lesson-preview .sample-lesson { padding: 24px 18px; }
  .lesson-preview .sample-steps { padding: 16px; gap: 5px; font-size: 9px; }
}
@media(prefers-reduced-motion:reduce) { #hero-phrase { transition: none; } }
@media(max-width:400px) {
  .city-caption { flex-direction: column; align-items: flex-start; gap: 3px; }
  .city-caption>span+span { border: 0; padding: 0; font-size: 10px; }
  .city-caption small { display: inline; font-size: 10px; margin-left: 8px; }
}
@media(max-width:360px) {
  .hero-phrase { font-size: 22px; }
  .landing-body .city-hero h1 { font-size: 34px; }
}

/* Motivation and orientation before sign-in: specific goals, no artificial scarcity. */
.landing-body .why-mandarin { background: #edf0e6; border-block: 1px solid #dce1d2; margin-top: 44px; }
.why-heading { display: grid; grid-template-columns: 1.15fr 1fr; gap: 70px; align-items: end; margin-bottom: 32px; }
.why-heading>p { margin: 0; font-size: 15px; color: #5b6856; line-height: 1.9; max-width: 47ch; }
.why-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); border-block: 1px solid #c8d1bc; }
.why-grid article { min-width: 0; padding: 28px; border-right: 1px solid #d1d9c6; }
.why-grid article:first-child { padding-left: 0; }.why-grid article:last-child { border: 0; padding-right: 0; }
.why-index { font-size: 10px; letter-spacing: .08em; color: var(--green); }
.why-grid h3 { font-size: 23px; line-height: 1.4; letter-spacing: -.03em; margin: 18px 0 14px; }
.why-grid article>p { font-size: 14px; color: #5b6856; line-height: 1.9; }
.why-goal { display: block; padding-top: 14px; margin-top: 20px; border-top: 1px solid #d1d9c6; font-size: 11px; color: #53614e; line-height: 1.85; }
.why-start { display: flex; gap: 30px; align-items: center; justify-content: space-between; margin-top: 25px; }
.why-start p { color: #5b6856; font-size: 13px; line-height: 1.9; margin: 0; }.why-start strong { color: var(--ink); font-weight: 500; }
.why-start .button { flex-shrink: 0; }
.why-sources { margin-top: 22px; color: #65705e; font-size: 11px; }
.why-sources summary { width: fit-content; cursor: pointer; padding-block: 8px; }
.why-sources p { max-width: 100ch; line-height: 1.9; }.why-sources a { color: var(--green); text-decoration: underline; text-underline-offset: 3px; }
.landing-next { display: flex; justify-content: space-between; gap: 40px; align-items: center; max-width: 1200px; margin: 0 auto 65px; padding: 36px 40px; background: #e9ecdf; border: 1px solid #d4dcc9; border-radius: 8px; }
.landing-next h2 { font: 500 35px/1.2 var(--font-display); letter-spacing: -.035em; margin: 8px 0 14px; }
.landing-next p:not(.eyebrow) { color: var(--muted); font-size: 14px; max-width: 50ch; margin: 0; line-height: 1.85; }
.landing-next>div+div { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; flex-shrink: 0; }
.landing-next .text-link { font-size: 12px; }
@media(max-width:1000px) {
  .why-heading { gap: 35px; }.why-grid article { padding-inline: 20px; }.why-grid h3 { font-size: 21px; }
  .landing-next { margin-inline: 40px; gap: 25px; padding: 30px; }.landing-next h2 { font-size: 31px; }
}
@media(max-width:860px) {
  .why-heading { grid-template-columns: 1fr; gap: 20px; }.why-heading>p { max-width: 65ch; font-size: 14px; }
  .why-grid { grid-template-columns: 1fr; }.why-grid article, .why-grid article:first-child, .why-grid article:last-child { border-right: 0; border-bottom: 1px solid #d1d9c6; padding: 24px 0; }.why-grid article:last-child { border-bottom: 0; }
  .why-grid h3 { margin-top: 12px; font-size: 23px; }.why-goal { border-top: 0; margin-top: 13px; padding-top: 0; }
  .landing-next { flex-direction: column; align-items: flex-start; margin-inline: 24px; }.why-start { gap: 20px; }
}
@media(max-width:600px) {
  .landing-body .why-mandarin { margin-top: 30px; padding-block: 48px; }.why-heading { margin-bottom: 25px; }
  .why-heading h2 { font-size: 32px; }.why-heading>p, .why-grid article>p { font-size: 13px; }
  .why-start { flex-direction: column; align-items: flex-start; gap: 18px; }.why-start p { font-size: 12px; }
  .why-grid h3 { font-size: 22px; }.why-goal { font-size: 11px; }
  .landing-next { padding: 27px 22px; margin-bottom: 40px; }.landing-next h2 { font-size: 29px; }.landing-next p:not(.eyebrow) { font-size: 13px; }
}