:root {
  color-scheme: dark;
  --body-canvas: #080a0c;
  --body-surface: #12161a;
  --body-elevated: #1c2228;
  --body-ink: #f4f1e8;
  --body-ink-muted: #bfc5c9;
  --body-border: #66727b;
  --body-accent: #ffb347;
  --body-accent-ink: #171006;
  --body-focus: #79c9ff;
  --body-shadow: #000000a8;
  --body-overlay: #080a0ce0;
  --body-overlay-clear: #080a0c00;
  --body-console: #0c0f11;
  --body-console-raised: #181c1f;
  --body-console-line: #879097;
  --body-console-track: #343a3f;
  --body-paper: #e9e2d2;
  --body-paper-ink: #191915;
  --body-paper-muted: #5f5b51;
  --body-paper-line: #aaa18f;
  --body-paper-shadow: #00000078;
  --grid-content: min(76rem, calc(100vw - (2 * var(--grid-gutter))));
  --grid-gutter: clamp(1rem, 4vw, 4rem);
  --grid-gap: clamp(1rem, 3vw, 2rem);
  --measure-reading: 42rem;
  --rhythm-breath: clamp(6rem, 14vw, 12rem);
  --rhythm-pause: clamp(3rem, 8vw, 7rem);
  --leading-display: 1.05;
  --leading-title: 1.12;
  --leading-lead: 1.42;
  --leading-reading: 1.72;
  --leading-quote: 1.35;
  --leading-ui: 1.2;
  --tracking-display: -0.045em;
  --tracking-title: -0.035em;
  --tracking-ui: 0.08em;
  --motion-duration-instant: 80ms;
  --motion-duration-short: 220ms;
  --motion-duration-long: 700ms;
  --motion-ease-arrive: cubic-bezier(.2,.8,.2,1);
  --motion-ease-settle: cubic-bezier(.16,1,.3,1);
  --motion-ease-gsap: power3.out;
  --motion-distance-small: 0.35rem;
  --motion-distance-medium: 1.5rem;
  --motion-stagger: 80ms;
}

:root[data-theme="light"] {
  color-scheme: light;
  --body-canvas: #f4f0e7;
  --body-surface: #ffffff;
  --body-elevated: #e8e2d7;
  --body-ink: #15191c;
  --body-ink-muted: #4d5960;
  --body-border: #6b7378;
  --body-accent: #8a4300;
  --body-accent-ink: #ffffff;
  --body-focus: #005a9c;
  --body-shadow: #20262b52;
  --body-overlay: #f4f0e7e6;
  --body-overlay-clear: #f4f0e700;
  --body-console: #1a1d1f;
  --body-console-raised: #282d31;
  --body-console-line: #aab0b4;
  --body-console-track: #4a5156;
  --body-paper: #fbf7ed;
  --body-paper-ink: #171713;
  --body-paper-muted: #5b574d;
  --body-paper-line: #b2a996;
  --body-paper-shadow: #20262b42;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--body-canvas); }
body { margin: 0; background: var(--body-canvas); color: var(--body-ink); font-family: Inter, Pretendard, "Noto Sans KR", system-ui, sans-serif; line-height: var(--leading-reading); }
h1, h2, h3 { margin: 0; max-width: 18ch; font-weight: 850; text-wrap: balance; word-break: keep-all; }
h1 { font-size: clamp(3.8rem, 12vw, 10rem); line-height: var(--leading-display); letter-spacing: var(--tracking-display); }
h2 { font-size: clamp(2.2rem, 6vw, 5.8rem); line-height: var(--leading-title); letter-spacing: var(--tracking-title); }
p, a, button, span, strong, output { word-break: keep-all; }
p { text-wrap: pretty; }
a { color: inherit; }
button, input { font: inherit; }
button { color: inherit; }
img { display: block; max-width: 100%; }
:focus-visible { outline: 3px solid var(--body-focus); outline-offset: 4px; }
.skip-link { position: fixed; z-index: 100; top: 0.75rem; left: 0.75rem; padding: 0.65rem 0.9rem; background: var(--body-accent); color: var(--body-accent-ink); transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
.visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); }
.site-header { position: fixed; z-index: 50; inset: 0 0 auto; display: flex; align-items: center; justify-content: space-between; min-height: 4.5rem; padding: 0 var(--grid-gutter); border-bottom: 1px solid var(--body-border); background: var(--body-overlay); backdrop-filter: blur(16px); }
.brand { font-weight: 850; text-decoration: none; letter-spacing: var(--tracking-title); line-height: var(--leading-ui); }
.primary-nav { display: flex; align-items: center; gap: 1.25rem; }
.primary-nav a { text-decoration: none; font-size: 0.88rem; font-weight: 700; }
.theme-button, .menu-button { border: 1px solid var(--body-border); border-radius: 999px; background: var(--body-surface); padding: 0.55rem 0.8rem; cursor: pointer; line-height: var(--leading-ui); }
.menu-button { display: none; }
.hero { position: relative; display: grid; min-height: 100svh; align-items: end; overflow: hidden; }
.hero-image, .hero-shade { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-image { object-fit: cover; object-position: 68% 50%; }
.hero-shade { background: linear-gradient(90deg, var(--body-overlay) 0 38%, var(--body-overlay-clear) 80%), linear-gradient(0deg, var(--body-canvas) 0%, var(--body-overlay-clear) 46%); }
.hero-content { position: relative; z-index: 1; width: var(--grid-content); margin: 0 auto; padding: 10rem 0 12vh; }
.eyebrow { margin: 0 0 1rem; color: var(--body-accent); font-size: 0.74rem; font-weight: 850; letter-spacing: var(--tracking-ui); line-height: var(--leading-ui); }
.hero-line { max-width: 28rem; margin: 1.5rem 0 2rem; color: var(--body-ink-muted); font-size: clamp(1.2rem, 2.2vw, 1.75rem); line-height: var(--leading-lead); }
.phrase-line { display: block; }
.button { display: inline-flex; padding: 0.85rem 1.15rem; border-radius: 999px; text-decoration: none; font-weight: 800; line-height: var(--leading-ui); }
.button-primary { background: var(--body-accent); color: var(--body-accent-ink); }
.scroll-cue { position: absolute; z-index: 1; right: var(--grid-gutter); bottom: 2rem; color: var(--body-ink-muted); font-size: 0.8rem; }
.thesis { width: var(--grid-content); margin: 0 auto; padding: var(--rhythm-breath) 0; }
.thesis h2 { max-width: 16ch; }
.thesis > p:last-child { max-width: var(--measure-reading); margin: 2rem 0 0 auto; color: var(--body-ink-muted); font-size: clamp(1.1rem, 2vw, 1.5rem); }
.scene-stack { display: grid; gap: var(--rhythm-breath); padding: 0 0 var(--rhythm-breath); }
.scene { width: var(--grid-content); margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(18rem, .65fr); gap: var(--grid-gap); align-items: center; }
.scene:nth-child(even) .scene-media { order: 2; }
.scene-media { margin: 0; overflow: hidden; border: 1px solid var(--body-border); background: var(--body-surface); box-shadow: 0 2rem 5rem var(--body-shadow); }
.scene-media img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.scene-copy h2 { font-size: clamp(2rem, 4vw, 4.4rem); }
.listen { width: var(--grid-content); margin: 0 auto; padding: var(--rhythm-pause); border: 1px solid var(--body-border); background: var(--body-surface); }
.listen-copy { display: grid; grid-template-columns: 1fr 1fr; gap: var(--grid-gap); align-items: end; }
.listen-copy > p:last-child { color: var(--body-ink-muted); }
.audio-console { margin-top: 3rem; border: 1px solid var(--body-console-line); background: var(--body-console); color: var(--body-ink); box-shadow: 0 1.4rem 3.2rem var(--body-shadow); }
.console-header { display: flex; justify-content: space-between; gap: 1rem; padding: .65rem .9rem; border-bottom: 1px solid var(--body-console-line); color: var(--body-ink-muted); font-size: .66rem; font-weight: 800; letter-spacing: var(--tracking-ui); line-height: var(--leading-ui); }
.listen-invitation { width: 100%; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 1rem; border: 0; background: var(--body-console); padding: 1.15rem; cursor: pointer; text-align: left; }
.listen-invitation[hidden] { display: none; }
.console-playmark, .play-button { display: grid; place-items: center; width: 3.35rem; min-width: 3.35rem; height: 3.35rem; border: 1px solid var(--body-console-line); border-radius: 0; background: var(--body-console-raised); color: var(--body-accent); }
.invitation-copy, .track-meta { display: grid; line-height: var(--leading-ui); }
.invitation-copy strong, .track-meta strong { font-size: 1.05rem; }
.invitation-copy small, .track-meta > span, .time { color: var(--body-ink-muted); font-size: .76rem; }
.console-action { align-self: stretch; display: grid; place-items: center; min-width: 8.8rem; padding: .6rem 1rem; border-left: 1px solid var(--body-console-line); color: var(--body-accent); font-size: .72rem; font-weight: 850; letter-spacing: var(--tracking-ui); line-height: var(--leading-ui); }
.player-surface { display: grid; grid-template-columns: auto minmax(10rem, .8fr) minmax(14rem, 2fr) auto; gap: 1.1rem; align-items: center; padding: 1.15rem; }
.player-surface[hidden] { display: none; }
.play-button { padding: 0; cursor: pointer; }
.play-button .icon-pause { display: none; }
.play-button[data-state="playing"] .icon-play { display: none; }
.play-button[data-state="playing"] .icon-pause { display: block; }
.track-meta > span { display: flex; align-items: center; gap: .45rem; }
.track-meta i { width: .48rem; height: .48rem; border-radius: 50%; background: var(--body-console-line); }
.player-surface[data-state="playing"] .track-meta i { background: var(--body-accent); }
.seek-label { display: grid; align-items: center; }
.seek-label input { --progress: 0%; width: 100%; height: 1.5rem; margin: 0; appearance: none; background: transparent; cursor: pointer; }
.seek-label input::-webkit-slider-runnable-track { height: .22rem; border-radius: 0; background: linear-gradient(90deg, var(--body-accent) 0 var(--progress), var(--body-console-track) var(--progress) 100%); }
.seek-label input::-webkit-slider-thumb { width: .7rem; height: 1.15rem; margin-top: -.46rem; appearance: none; border: 1px solid var(--body-console-line); border-radius: 0; background: var(--body-ink); }
.seek-label input::-moz-range-track { height: .22rem; border-radius: 0; background: var(--body-console-track); }
.seek-label input::-moz-range-progress { height: .22rem; background: var(--body-accent); }
.seek-label input::-moz-range-thumb { width: .7rem; height: 1.15rem; border: 1px solid var(--body-console-line); border-radius: 0; background: var(--body-ink); }
.time { min-width: 6.3rem; text-align: right; font-variant-numeric: tabular-nums; }
.lyrics { width: var(--grid-content); margin: 0 auto; padding: var(--rhythm-breath) 0; display: grid; grid-template-columns: .8fr 1.2fr; gap: var(--grid-gap); }
.lyrics-grid { display: grid; gap: 0; border-top: 1px solid var(--body-border); }
.lyric { margin: 0; padding: 1.15rem 0; border-bottom: 1px solid var(--body-border); font-size: clamp(1rem, 1.8vw, 1.25rem); }
.column { margin-top: var(--rhythm-breath); padding: var(--rhythm-breath) var(--grid-gutter); background: var(--body-paper); color: var(--body-paper-ink); }
.column-header { width: min(68rem, 100%); margin: 0 auto var(--rhythm-pause); padding-bottom: var(--rhythm-pause); border-bottom: 1px solid var(--body-paper-line); }
.column-kicker, .book-label { margin: 0 0 1rem; color: var(--body-paper-muted); font-size: .72rem; font-weight: 850; letter-spacing: var(--tracking-ui); line-height: var(--leading-ui); }
.column-header h2 { max-width: 13ch; font-size: clamp(3rem, 8vw, 7.5rem); }
.column-byline { display: flex; gap: .8rem; align-items: baseline; margin: 2rem 0 0; color: var(--body-paper-muted); }
.column-byline strong { color: var(--body-paper-ink); }
.column-layout { width: min(68rem, 100%); margin: 0 auto; display: grid; grid-template-columns: minmax(14rem, 18rem) minmax(0, var(--measure-reading)); justify-content: space-between; gap: clamp(3rem, 8vw, 8rem); align-items: start; }
.book-rail { position: sticky; top: 6.5rem; }
.book-cover-frame { display: block; border: 1px solid var(--body-paper-line); background: var(--body-paper); box-shadow: 0 1.5rem 3.5rem var(--body-paper-shadow); }
.book-cover-frame img { width: 100%; height: auto; }
.book-rail h3 { max-width: 18ch; margin: 1.6rem 0 .45rem; font-size: clamp(1.35rem, 2.2vw, 1.8rem); line-height: var(--leading-title); letter-spacing: var(--tracking-title); }
.book-rail > p:not(.book-label) { margin: 0; color: var(--body-paper-muted); font-size: .9rem; }
.book-link { display: inline-flex; margin-top: 1.4rem; padding-bottom: .25rem; border-bottom: 1px solid currentColor; font-weight: 800; text-decoration: none; line-height: var(--leading-ui); }
.column-body { min-width: 0; }
.column-paragraph { margin: 0 0 2.1rem; color: var(--body-paper-ink); font-size: clamp(1.03rem, 1.4vw, 1.16rem); line-height: var(--leading-reading); text-wrap: pretty; word-break: keep-all; }
.column-lead { margin-bottom: 2.8rem; font-size: clamp(1.18rem, 1.8vw, 1.42rem); line-height: var(--leading-lead); font-weight: 650; }
.column-pullquote { margin: 3.5rem 0; padding: clamp(1.6rem, 4vw, 3rem); background: var(--body-console); color: var(--body-ink); box-shadow: .75rem .75rem 0 var(--body-accent); font-size: clamp(1.45rem, 3.2vw, 2.5rem); font-weight: 850; line-height: var(--leading-quote); letter-spacing: var(--tracking-title); }
.finale { position: relative; min-height: 85svh; display: grid; place-items: center; overflow: hidden; text-align: center; }
.finale::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, var(--body-overlay), var(--body-overlay-clear), var(--body-overlay)); }
.finale img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.finale-content { position: relative; z-index: 1; width: var(--grid-content); display: grid; justify-items: center; }
.finale-content h2 { font-size: clamp(3rem, 8vw, 8rem); }
.finale-content > p:first-child { font-size: clamp(1.2rem, 3vw, 2rem); }
.final-sting { margin-top: 3rem; color: var(--body-accent); font-size: clamp(1.15rem, 2.5vw, 2rem); font-weight: 850; }
footer { width: var(--grid-content); margin: 0 auto; padding: 2rem 0; display: flex; justify-content: space-between; gap: 1rem; color: var(--body-ink-muted); font-size: .82rem; }
.machine-string { overflow-wrap: anywhere; }

@media (hover: hover) {
  .primary-nav a:hover, footer a:hover { color: var(--body-accent); }
  .button:hover, .listen-invitation:hover, .book-link:hover, .book-cover-frame:hover { transform: translateY(calc(-1 * var(--motion-distance-small))); transition: transform var(--motion-duration-short) var(--motion-ease-arrive); }
}
@media (hover: none), (pointer: coarse) {
  .primary-nav a, .theme-button, .menu-button, .listen-invitation, .play-button { min-height: 44px; }
}
@media (max-width: 64rem) {
  .scene { grid-template-columns: 1fr; }
  .scene:nth-child(even) .scene-media { order: 0; }
  .scene-copy { max-width: 38rem; }
  .listen-copy, .lyrics { grid-template-columns: 1fr; }
  .player-surface { grid-template-columns: auto 1fr; }
  .seek-label { grid-column: 1 / -1; }
  .time { grid-column: 2; }
  .column-layout { grid-template-columns: minmax(12rem, 15rem) minmax(0, var(--measure-reading)); gap: var(--grid-gap); }
}
@media (max-width: 44rem) {
  .menu-button { display: inline-flex; }
  .primary-nav { position: fixed; inset: 4.5rem 0 auto; display: none; padding: 1.25rem var(--grid-gutter); flex-direction: column; align-items: stretch; background: var(--body-surface); border-bottom: 1px solid var(--body-border); }
  .primary-nav.is-open { display: flex; }
  .primary-nav a, .theme-button { padding: .75rem; }
  .hero-shade { background: linear-gradient(0deg, var(--body-overlay) 0 35%, var(--body-overlay-clear) 82%); }
  .hero-content { padding-bottom: 16vh; }
  .hero-image { object-position: 66% 50%; }
  .scroll-cue { display: none; }
  .listen { width: 100%; padding-inline: var(--grid-gutter); border-inline: 0; }
  .console-header span:last-child { display: none; }
  .listen-invitation { grid-template-columns: auto minmax(0, 1fr); }
  .console-action { grid-column: 2; justify-items: start; min-width: 0; padding: .45rem 0 0; border-left: 0; border-top: 1px solid var(--body-console-line); }
  .player-surface { gap: .8rem; }
  .time { justify-self: end; }
  .column { padding-inline: var(--grid-gutter); }
  .column-layout { grid-template-columns: 1fr; gap: var(--rhythm-pause); }
  .book-rail { position: static; width: min(17rem, 78vw); margin: 0 auto; }
  .column-pullquote { margin-inline: calc(-1 * var(--grid-gutter)); box-shadow: none; }
  footer { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}