:root { --paper: #f7f7f4; --ink: #191b1e; --muted: #74777d; --line: #d8d9d6; --blue: #2869dd; --gutter: clamp(24px, 6.2vw, 120px); }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR", Arial, sans-serif; -webkit-font-smoothing: antialiased; }
body:lang(ko) { word-break: keep-all; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
a, button { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 6px; }
::selection { color: white; background: var(--blue); }
.skip-link { position: fixed; top: -100px; left: 24px; padding: 14px 20px; background: white; color: var(--ink); z-index: 100; }
.skip-link:focus { top: 20px; }
.site-header { position: fixed; z-index: 30; top: 24px; left: var(--gutter); right: var(--gutter); height: 64px; display: flex; align-items: center; gap: 36px; padding: 0 16px 0 24px; background: rgba(250, 250, 248, .76); border: 1px solid rgba(255,255,255,.9); border-radius: 40px; backdrop-filter: blur(22px) saturate(1.4); -webkit-backdrop-filter: blur(22px) saturate(1.4); box-shadow: 0 4px 20px rgba(50,55,65,.045), inset 0 1px 0 rgba(255,255,255,.9); }
.wordmark { font-size: 20px; font-weight: 650; letter-spacing: -.07em; }
.main-nav { display: flex; align-items: center; gap: 30px; margin-left: auto; }
.main-nav a { font-size: 13px; color: #676a70; transition: color .2s; }
.main-nav a:hover { color: var(--blue); }
.language-switch { display: flex; gap: 2px; border: 1px solid rgba(31,34,38,.08); border-radius: 20px; padding: 3px; background: rgba(223,225,225,.25); }
.language-switch button { border: 0; background: transparent; border-radius: 16px; min-width: 40px; min-height: 32px; padding: 4px 10px; color: #73777c; font-size: 11px; font-weight: 600; transition: color .2s, background .2s, box-shadow .2s; }
.language-switch button[aria-pressed="true"] { background: #fff; color: var(--ink); box-shadow: 0 1px 5px rgba(15,20,30,.09); }
.hero { min-height: 100svh; padding: clamp(140px, 19svh, 190px) var(--gutter) 100px; display: flex; flex-direction: column; justify-content: space-between; }
.eyebrow { display: flex; align-items: center; gap: 24px; margin: 0; color: var(--muted); font-size: 13px; font-weight: 450; letter-spacing: .02em; }
.hero h1 { margin: 32px 0 24px; font-size: clamp(90px, 13.6vw, 205px); line-height: .84; font-weight: 600; letter-spacing: -.072em; }
.name-period { color: var(--blue); }
.hero-description { max-width: 390px; margin: 34px 0 0; color: #666b73; font-size: clamp(16px, 1.45vw, 20px); line-height: 1.5; letter-spacing: -.018em; }
.hero-bottom { display: flex; align-items: center; justify-content: space-between; margin-top: 50px; }
.discover-link { display: inline-flex; align-items: center; gap: 70px; padding: 12px 0; color: var(--blue); font-size: 15px; font-weight: 550; }
.discover-link span:last-child { font-size: 23px; transition: transform .25s; }
.discover-link:hover span:last-child { transform: translateY(5px); }
.hero-note { margin: 0; color: #9a9da2; font-size: 12px; }
.js-ready .hero-enter { animation: heroIn .8s both; }
.js-ready .hero-enter:nth-child(2) { animation-delay: .12s; }
.js-ready .hero-enter:nth-child(3) { animation-delay: .24s; }
.js-ready .hero-bottom.hero-enter { animation-delay: .36s; }
@keyframes heroIn { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: translateY(0); } }
/* The normal-flow scene is also the reduced-motion and no-JavaScript version. */
.chapter { padding: 100px var(--gutter) 115px; border-top: 1px solid var(--line); }
.scene-stage { max-width: 1600px; margin: 0 auto; }
.scene-overline { position: relative; }
.chapter-number { color: var(--blue); font-variant-numeric: tabular-nums; }
.scene-keyword { margin: 34px 0 30px; font-size: clamp(52px, 9.5vw, 142px); line-height: 1; letter-spacing: -.055em; font-weight: 550; }
#perspective .scene-keyword { font-size: clamp(45px, 8.7vw, 130px); }
.scene-details { max-width: 480px; margin-top: 38px; }
.chapter-description { font-size: clamp(18px, 1.8vw, 24px); line-height: 1.65; color: #515961; letter-spacing: -.02em; margin: 0; }
.text-link { display: inline-flex; align-items: center; gap: 24px; color: var(--blue); font-size: 13px; font-weight: 500; padding: 12px 0; margin-top: 24px; }
.text-link span:last-child { transition: transform .25s; font-size: 17px; }
.text-link:hover span:last-child { transform: translate(3px, -3px); }
.scene-photo { position: relative; margin: 45px 0 0; }
.scene-photo img { display: block; width: 100%; height: auto; max-height: 76svh; aspect-ratio: 16 / 10; object-fit: cover; }
.scene-photo figcaption { display: flex; justify-content: space-between; gap: 16px; margin-top: 18px; color: #777e85; font-size: 11px; line-height: 1.6; }
.scene-photo figcaption span:first-child { max-width: 76%; }
.scene-photo figcaption span:last-child { flex-shrink: 0; font-variant-numeric: tabular-nums; }

/* Scroll changes the photograph's frame, the word's position, and the explanation's timing. */
body.motion-ready .scroll-scene { height: 300svh; padding: 0; border-top: 0; }
body.motion-ready .scene-stage { position: sticky; top: 0; height: 100svh; max-width: none; overflow: hidden; isolation: isolate; background: var(--paper); }
body.motion-ready .scene-photo { position: absolute; inset: 0; z-index: 0; margin: 0; opacity: var(--image-opacity, 0); transform: scale(var(--image-scale, 1)); clip-path: inset(calc(var(--image-clip, 20) * 1%) round calc((1 - var(--photo-phase, 0)) * 24px)); will-change: opacity, transform, clip-path; }
body.motion-ready .scene-photo img { width: 100%; height: 100%; max-height: none; aspect-ratio: auto; object-fit: cover; }
body.motion-ready .scene-photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(247,247,244,.97) 0%, rgba(247,247,244,.85) 31%, rgba(247,247,244,.48) 58%, rgba(247,247,244,.04) 100%); }
body.motion-ready .scene-photo figcaption { position: absolute; z-index: 1; right: var(--gutter); bottom: 92px; max-width: 430px; margin: 0; padding: 12px 17px; border: 1px solid rgba(255,255,255,.45); border-radius: 22px; color: #32383f; background: rgba(247,247,244,.77); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); opacity: var(--detail-opacity, 0); }
body.motion-ready .scene-overline { position: absolute; z-index: 2; top: 23svh; left: var(--gutter); opacity: var(--scene-exit-opacity, 1); color: #5f666e; }
body.motion-ready .scene-keyword { position: absolute; z-index: 2; top: 41svh; left: 50%; width: max-content; max-width: none; margin: 0; font-size: clamp(80px, 13vw, 196px); transform: translate(calc(-50% - var(--photo-phase, 0) * 23vw), calc(var(--title-shift, 0) * 1px)) scale(var(--title-scale, 1)); transform-origin: center; opacity: var(--scene-exit-opacity, 1); will-change: transform, opacity; }
body.motion-ready #perspective .scene-keyword { font-size: clamp(70px, 11.2vw, 170px); }
body.motion-ready .scene-details { position: absolute; z-index: 2; top: 56svh; left: var(--gutter); width: 42%; max-width: 465px; margin: 0; opacity: calc(var(--detail-opacity, 0) * var(--scene-exit-opacity, 1)); transform: translateY(calc(var(--detail-shift, 28) * 1px)); will-change: transform, opacity; }
body.motion-ready .scene-details .chapter-description { color: #303840; }
body.motion-ready .scene-details .text-link { margin-top: 20px; }
.chapter-track { position: fixed; z-index: 25; right: 28px; bottom: 20px; display: flex; gap: 6px; align-items: center; padding: 10px 12px 10px 17px; background: rgba(255,255,255,.76); border: 1px solid rgba(255,255,255,.95); border-radius: 30px; backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); box-shadow: 0 4px 24px rgba(30,35,40,.05); transition: opacity .3s, transform .3s; }
.js-ready .chapter-track { opacity: 0; transform: translateY(10px); pointer-events: none; }
.js-ready .chapter-track.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.js-ready .chapter-track:not(.visible) { visibility: hidden; }
.track-count { margin-right: 11px; font-size: 10px; font-weight: 550; font-variant-numeric: tabular-nums; }
.track-count span { color: #96999e; font-weight: 400; }
.track-dot { position: relative; height: 28px; width: 24px; display: grid; place-items: center; }
.track-dot::after { content: ""; display: block; width: 5px; height: 5px; border-radius: 50%; background: #bcc0c4; transition: background .2s, transform .2s; }
.track-dot.active::after { background: var(--blue); transform: scale(1.35); }
.track-dot:hover::after { background: var(--blue); }
.page-progress { position: fixed; z-index: 40; left: 0; top: 0; height: 2px; width: 100%; background: var(--blue); transform: scaleX(0); transform-origin: left; }
.writing { padding: 125px var(--gutter) 115px; border-top: 1px solid var(--line); }
.writing-header { display: flex; gap: 32px; justify-content: space-between; align-items: flex-end; }
.writing h2 { margin: 26px 0 0; font-size: clamp(40px, 5.6vw, 84px); letter-spacing: -.06em; font-weight: 550; line-height: 1.08; }
.blog-link { margin: 0 0 4px; white-space: nowrap; }
.preview-note { margin: 48px 0 18px; color: #96999e; font-size: 11px; }
.post { display: grid; grid-template-columns: 160px 1fr 30px; align-items: center; gap: 24px; min-height: 112px; padding: 24px 0; border-top: 1px solid var(--line); }
.post:last-child { border-bottom: 1px solid var(--line); }
.post-type { font-size: 12px; color: #989b9f; }
.post h3 { margin: 0; font-size: clamp(18px, 2vw, 27px); font-weight: 400; letter-spacing: -.028em; line-height: 1.35; transition: color .2s; }
.post-arrow { font-size: 22px; font-weight: 300; color: #888c94; justify-self: end; transition: transform .25s, color .25s; }
.post:hover h3, .post:hover .post-arrow { color: var(--blue); }
.post:hover .post-arrow { transform: translate(4px,-4px); }
.site-footer { margin: 0 var(--gutter); padding: 36px 0 110px; border-top: 1px solid var(--line); display: flex; align-items: center; gap: 40px; font-size: 12px; }
.site-footer > span { font-weight: 550; }
.site-footer p { margin: 0; color: #999da3; }
.site-footer a { margin-left: auto; color: #686d74; }
:lang(ko) .hero-description { max-width: 430px; }
:lang(ko) .scene-keyword { font-size: clamp(58px, 6.8vw, 105px); letter-spacing: -.065em; }
:lang(ko) .chapter-description { line-height: 1.8; }
@media (min-width: 1600px) { .hero h1 { margin-top: 38px; } .chapter-description { max-width: 360px; } }
@media (max-width: 1100px) { .site-header { left: 30px; right: 30px; } .post { grid-template-columns: 95px 1fr 26px; } }
@media (max-width: 700px) {
  html { scroll-padding-top: 100px; }
  .site-header { top: 16px; left: 16px; right: 16px; height: 58px; gap: 12px; padding: 0 11px 0 18px; }
  .wordmark { font-size: 18px; }
  .main-nav { gap: 16px; }
  .main-nav a { font-size: 11px; }
  .language-switch { margin-left: auto; }
  .language-switch button { min-width: 34px; min-height: 32px; padding: 4px 8px; font-size: 10px; }
  .hero { padding-top: clamp(135px, 20svh, 170px); padding-bottom: 100px; }
  .hero h1 { font-size: clamp(94px, 25vw, 162px); margin-top: 34px; line-height: .89; letter-spacing: -.07em; }
  .eyebrow { font-size: 11px; }
  .hero-description { max-width: 275px; font-size: 16px; margin-top: 30px; }
  .hero-bottom { margin-top: 34px; }
  .discover-link { font-size: 13px; gap: 52px; }
  .hero-note { display: none; }
  .chapter { padding: 75px var(--gutter) 90px; }
  .scene-keyword, #perspective .scene-keyword { margin: 26px 0 22px; font-size: clamp(48px, 12.8vw, 82px); letter-spacing: -.05em; }
  .chapter-description { max-width: 360px; font-size: 17px; line-height: 1.7; }
  .scene-details { margin-top: 30px; }
  .text-link { margin-top: 18px; font-size: 12px; }
  .scene-photo { margin-top: 38px; }
  .scene-photo img { max-height: none; aspect-ratio: 4 / 5; }
  .scene-photo figcaption { font-size: 10px; margin-top: 14px; }
  body.motion-ready .scroll-scene { height: 230svh; }
  body.motion-ready .scene-overline { top: 23svh; font-size: 10px; gap: 20px; }
  body.motion-ready .scene-keyword { top: 42svh; font-size: clamp(49px, 15.7vw, 103px); transform: translate(calc(-50% - var(--photo-phase, 0) * 17vw), calc(var(--title-shift, 0) * 1px)) scale(var(--title-scale, 1)); }
  body.motion-ready #perspective .scene-keyword { font-size: clamp(43px, 12.4vw, 82px); }
  body.motion-ready .scene-details { top: 54svh; width: calc(100% - var(--gutter) * 2); max-width: 350px; }
  body.motion-ready .chapter-description { font-size: 17px; line-height: 1.65; }
  body.motion-ready .scene-photo::after { background: linear-gradient(90deg, rgba(247,247,244,.89), rgba(247,247,244,.58)); }
  body.motion-ready .scene-photo figcaption { left: var(--gutter); right: auto; bottom: 85px; max-width: calc(100% - var(--gutter) * 2); padding: 9px 13px; font-size: 9px; }
  body.motion-ready .scene-photo figcaption span:last-child { display: none; }
  body.motion-ready .scene-details .text-link { margin-top: 10px; }
  .chapter-track { display: none; }
  .writing { padding-top: 75px; padding-bottom: 80px; }
  .writing-header { display: block; }
  .writing h2 { font-size: 42px; margin-top: 22px; }
  .blog-link { margin: 20px 0 0; }
  .preview-note { margin-top: 36px; line-height: 1.6; }
  .post { grid-template-columns: 1fr 24px; gap: 14px; padding: 25px 0; }
  .post-type { grid-column: 1; font-size: 11px; }
  .post h3 { grid-column: 1; font-size: 20px; }
  .post-arrow { grid-column: 2; grid-row: 1 / 3; }
  .site-footer { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 12px; padding-bottom: 110px; }
  .site-footer p { grid-row: 2; grid-column: 1 / 3; }
  .site-footer a { font-size: 11px; }
  :lang(ko) .scene-keyword { font-size: clamp(58px, 14vw, 80px); }
  body.motion-ready:lang(ko) .scene-keyword, body.motion-ready:lang(ko) #perspective .scene-keyword { font-size: clamp(64px, 19vw, 112px); }
  :lang(ko) .hero-description { max-width: 285px; }
}
@media (max-width: 370px) { .main-nav { gap: 10px; } .site-header { gap: 8px; padding-left: 14px; padding-right: 8px; } .wordmark { font-size: 16px; } .main-nav a { font-size: 10px; } .language-switch button { padding-left: 6px; padding-right: 6px; min-width: 30px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; }  }

@media (max-height: 560px) and (min-width: 701px) {
  body.motion-ready .scene-overline { top: 20svh; }
  body.motion-ready .scene-keyword { top: 42svh; font-size: 11vw; }
  body.motion-ready #perspective .scene-keyword { font-size: 9.5vw; }
  body.motion-ready .scene-details { top: 57svh; max-width: 540px; width: 58%; }
  body.motion-ready .chapter-description { font-size: 16px; line-height: 1.45; }
  body.motion-ready .scene-details .text-link { margin-top: 6px; padding: 6px 0; }
  body.motion-ready .scene-photo figcaption { display: none; }
}
body.motion-ready .scene-details:focus-within { opacity: 1; transform: none; }
@media (max-height: 650px) and (max-width: 700px) {
  body.motion-ready .scene-photo figcaption { display: none; }
  body.motion-ready .scene-details { top: 52svh; max-width: none; }
  body.motion-ready .chapter-description { font-size: 15px; line-height: 1.55; }
}

/* Keep small supporting labels readable against the light page. */
.hero-note, .preview-note, .post-type, .site-footer p { color: #626872; }
.scene-photo figcaption { color: #626872; }