@font-face {
  font-family: "ZCOOL XiaoWei Xunshu";
  src: url("./fonts/zcool-xiaowei-xunshu.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: block;
}

:root {
  color-scheme: dark;
  --black: #090909;
  --canvas: #090909;
  --paper: #efefec;
  --silver: #9a9a96;
  --dark-line: rgba(255, 255, 255, 0.18);
  --light-line: rgba(9, 9, 9, 0.2);
  --sans: "Helvetica Neue", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  --serif: "Iowan Old Style", "Songti SC", "Noto Serif SC", Georgia, serif;
  --display-cn: "Microsoft YaHei UI", "PingFang SC", "Noto Sans SC", "Helvetica Neue", sans-serif;
  --logo-cn: "ZCOOL XiaoWei Xunshu", "Songti SC", "Noto Serif SC", serif;
  --display-en: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --space: clamp(1.25rem, 4vw, 4.5rem);
  --intro-shadow: rgba(0, 0, 0, 0.66);
  --intro-shadow-strong: rgba(0, 0, 0, 0.82);
  --intro-shadow-soft: rgba(0, 0, 0, 0.5);
}

html[data-theme="light"] {
  color-scheme: light;
  --canvas: #f2f2ef;
  --silver: #686864;
  --dark-line: rgba(9, 9, 9, 0.18);
  --intro-shadow: rgba(0, 0, 0, 0.16);
  --intro-shadow-strong: rgba(0, 0, 0, 0.22);
  --intro-shadow-soft: rgba(0, 0, 0, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scrollbar-gutter: stable; }

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--canvas);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
  transition: background-color 420ms ease, color 420ms ease;
}

html[data-theme="light"] body {
  background: var(--canvas);
  color: #0c0c0c;
}

html.intro-pending,
html.intro-pending body {
  overflow: hidden;
}

html.intro-pending body > .site-header,
html.intro-pending body > main,
html.intro-pending body > footer {
  opacity: 0.62;
  filter: blur(9px);
  transition:
    opacity 620ms cubic-bezier(0.22, 1, 0.36, 1),
    filter 620ms cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, filter;
}

html.intro-pending.intro-reveal body > .site-header,
html.intro-pending.intro-reveal body > main,
html.intro-pending.intro-reveal body > footer {
  opacity: 1;
  filter: blur(0);
}

html.intro-seen body > .site-header,
html.intro-seen body > main,
html.intro-seen body > footer {
  filter: blur(0);
}

a { color: inherit; }
button { font: inherit; }

a:focus-visible,
button:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 5px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 1rem;
  left: 1rem;
  padding: 0.55rem 0.8rem;
  background: var(--paper);
  color: var(--black);
  transform: translateY(-200%);
}

.skip-link:focus { transform: translateY(0); }

.intro-screen {
  position: fixed;
  z-index: 200;
  inset: 0;
  display: none;
  place-items: center;
  overflow: hidden;
  background: #070707;
  color: var(--paper);
}

html[data-theme="light"] .intro-screen {
  background: #f2f2ef;
  color: #0c0c0c;
}

.intro-pending .intro-screen { display: grid; }

.intro-particles {
  position: absolute;
  z-index: 1;
  top: 50%;
  left: 50%;
  width: min(76vmin, 44rem);
  aspect-ratio: 1.75;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.intro-particle {
  position: absolute;
  top: var(--y);
  left: var(--x);
  width: var(--w);
  height: var(--h);
  border-radius: 999px;
  background: rgba(225, 228, 230, 0.86);
  box-shadow: 0 0 var(--glow) rgba(219, 224, 228, 0.28);
  opacity: var(--opacity);
  transform: translate3d(0, 0, 0) scale(1);
  animation: intro-particle-arrive 940ms ease-out var(--delay) both;
  will-change: transform, opacity, filter;
}

.intro-particle--bright {
  background: rgba(244, 245, 244, 0.96);
  box-shadow: 0 0 var(--glow) rgba(228, 233, 236, 0.42);
}

html[data-theme="light"] .intro-particle {
  background: rgba(22, 22, 21, 0.78);
  box-shadow: 0 0 var(--glow) rgba(35, 35, 33, 0.2);
}

html[data-theme="light"] .intro-particle--bright {
  background: rgba(9, 9, 9, 0.94);
  box-shadow: 0 0 var(--glow) rgba(20, 20, 19, 0.3);
}

.intro-aura {
  position: absolute;
  z-index: 1;
  top: 50%;
  left: 50%;
  width: min(70vmin, 40rem);
  aspect-ratio: 1.9;
  border-radius: 50%;
  background:
    radial-gradient(ellipse at 50% 50%, rgba(225, 228, 230, 0.09) 0%, rgba(146, 151, 156, 0.035) 38%, transparent 72%),
    linear-gradient(100deg, transparent 13%, rgba(218, 221, 224, 0.025) 49%, transparent 86%);
  filter: blur(28px);
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.72);
  animation: intro-aura 2.7s ease-in-out 120ms forwards;
  pointer-events: none;
}

.intro-aura::after {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(ellipse at center, transparent 0 42%, rgba(236, 239, 241, 0.025) 44%, transparent 47%);
  content: "";
}

html[data-theme="light"] .intro-aura {
  background:
    radial-gradient(ellipse at 50% 50%, rgba(15, 15, 14, 0.075) 0%, rgba(70, 70, 67, 0.025) 38%, transparent 72%),
    linear-gradient(100deg, transparent 13%, rgba(20, 20, 19, 0.02) 49%, transparent 86%);
}

html[data-theme="light"] .intro-aura::after {
  background: radial-gradient(ellipse at center, transparent 0 42%, rgba(18, 18, 17, 0.025) 44%, transparent 47%);
}

.intro-axis {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  width: 1px;
  height: clamp(8.5rem, 21vw, 18rem);
  background: linear-gradient(to bottom, transparent, rgba(230, 232, 232, 0.7) 18%, rgba(230, 232, 232, 0.7) 82%, transparent);
  opacity: 0;
  transform: translate(-50%, -50%) scaleY(0.04);
  transform-origin: 50% 50%;
  animation: intro-axis 1.65s cubic-bezier(0.22, 1, 0.36, 1) 120ms forwards;
  pointer-events: none;
}

html[data-theme="light"] .intro-axis {
  background: linear-gradient(to bottom, transparent, rgba(15, 15, 14, 0.58) 18%, rgba(15, 15, 14, 0.58) 82%, transparent);
}

.intro-title {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--paper);
  font-family: var(--logo-cn);
  gap: 0.016em;
  font-size: clamp(6.5rem, 15vw, 14rem);
  font-synthesis: none;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1;
  transform: translate(-50%, -50%);
}

.intro-char {
  display: block;
  opacity: 0;
  background: linear-gradient(106deg, #9a9c9f 0%, #e9eae8 24%, #c4c6c7 47%, #f7f7f5 62%, #a4a7a9 100%);
  background-size: 185% 100%;
  background-position: 92% 0;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  filter: blur(3px) drop-shadow(0 11px 16px var(--intro-shadow)) drop-shadow(0 1px 1px var(--intro-shadow-strong));
  will-change: transform, opacity, filter;
}

html[data-theme="light"] .intro-char {
  background: linear-gradient(106deg, #5d5e5f 0%, #111212 24%, #454646 47%, #080808 62%, #666766 100%);
  background-size: 185% 100%;
  background-position: 92% 0;
  background-clip: text;
  -webkit-background-clip: text;
}

.intro-char--left { transform: translate3d(-44vw, 0, 0); }
.intro-char--right { transform: translate3d(44vw, 0, 0); }

.intro-pending .intro-char--left {
  animation: intro-left 1.28s cubic-bezier(0.2, 0.78, 0.2, 1) 390ms forwards;
}

.intro-pending .intro-char--right {
  animation: intro-right 1.28s cubic-bezier(0.2, 0.78, 0.2, 1) 390ms forwards;
}

.intro-screen.is-merged .intro-char {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  animation: intro-metal-settle 720ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.intro-wordmark {
  position: absolute;
  z-index: 2;
  top: calc(50% + clamp(4.3rem, 9.2vw, 8.25rem));
  left: 50%;
  margin: 0;
  padding-left: 0.46em;
  color: rgba(222, 224, 223, 0.74);
  font-family: var(--display-en);
  font-size: clamp(0.64rem, 1vw, 0.82rem);
  font-weight: 500;
  letter-spacing: 0.92em;
  line-height: 1;
  opacity: 0;
  transform: translate3d(-50%, 0.55rem, 0);
  white-space: nowrap;
}

html[data-theme="light"] .intro-wordmark { color: rgba(20, 20, 19, 0.72); }

.intro-screen.is-merged .intro-wordmark {
  animation: intro-wordmark-in 720ms cubic-bezier(0.22, 1, 0.36, 1) 110ms forwards;
}

.intro-screen.is-leaving {
  pointer-events: none;
}

.intro-screen.is-leaving .intro-title {
  transform: translate(-50%, -50%);
}

.intro-screen.is-leaving .intro-char {
  background-position: 8% 0;
  animation: intro-char-scatter 760ms cubic-bezier(0.32, 0, 0.45, 1) forwards;
}

.intro-screen.is-leaving .intro-char--left {
  --char-scatter-x: -0.26em;
  --char-scatter-y: -0.035em;
  --char-scatter-rotate: -1.2deg;
}

.intro-screen.is-leaving .intro-char--right {
  --char-scatter-x: 0.26em;
  --char-scatter-y: 0.035em;
  --char-scatter-rotate: 1.2deg;
}

.intro-screen.is-leaving .intro-particle {
  animation: intro-particle-scatter 880ms cubic-bezier(0.24, 0.16, 0.38, 1) forwards;
}

.intro-screen.is-leaving .intro-wordmark {
  animation: intro-wordmark-scatter 720ms cubic-bezier(0.32, 0, 0.45, 1) forwards;
}

.intro-screen.is-leaving .intro-aura {
  opacity: 0;
  transform: translate(-50%, -50%) scale(1.14);
  transition: opacity 760ms ease, transform 820ms ease-out;
}

.intro-screen.is-revealing {
  opacity: 0;
  transition: opacity 680ms cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

@keyframes intro-left {
  0% { opacity: 0; filter: blur(3px) drop-shadow(0 11px 16px var(--intro-shadow)); transform: translate3d(-44vw, 0, 0); }
  80% { opacity: 1; filter: blur(0) drop-shadow(0 11px 16px var(--intro-shadow)); transform: translate3d(0.012em, 0, 0); }
  100% { opacity: 1; filter: blur(0) drop-shadow(0 11px 16px var(--intro-shadow)); transform: translate3d(0, 0, 0); }
}

@keyframes intro-right {
  0% { opacity: 0; filter: blur(3px) drop-shadow(0 11px 16px var(--intro-shadow)); transform: translate3d(44vw, 0, 0); }
  80% { opacity: 1; filter: blur(0) drop-shadow(0 11px 16px var(--intro-shadow)); transform: translate3d(-0.012em, 0, 0); }
  100% { opacity: 1; filter: blur(0) drop-shadow(0 11px 16px var(--intro-shadow)); transform: translate3d(0, 0, 0); }
}

@keyframes intro-axis {
  0% { opacity: 0; transform: translate(-50%, -50%) scaleY(0.04); }
  24% { opacity: 0.58; transform: translate(-50%, -50%) scaleY(1); }
  68% { opacity: 0.58; transform: translate(-50%, -50%) scaleY(1); }
  100% { opacity: 0; transform: translate(-50%, -50%) scaleY(0.08); }
}

@keyframes intro-metal-settle {
  0% { background-position: 92% 0; filter: blur(0) drop-shadow(0 10px 15px var(--intro-shadow)); }
  100% { background-position: 8% 0; filter: blur(0) drop-shadow(0 9px 14px var(--intro-shadow)); }
}

@keyframes intro-particle-arrive {
  0% { opacity: 0; transform: translate3d(0, 3px, 0) scale(0.7); }
  100% { opacity: var(--opacity); transform: translate3d(0, 0, 0) scale(1); }
}

@keyframes intro-wordmark-in {
  0% { opacity: 0; letter-spacing: 0.92em; filter: blur(2px); transform: translate3d(-50%, 0.55rem, 0); }
  100% { opacity: 0.74; letter-spacing: 0.46em; filter: blur(0); transform: translate3d(-50%, 0, 0); }
}

@keyframes intro-char-scatter {
  0% {
    opacity: 1;
    filter: blur(0) drop-shadow(0 9px 14px var(--intro-shadow));
    transform: translate3d(0, 0, 0) rotate(0);
  }
  100% {
    opacity: 0;
    filter: blur(5px) drop-shadow(0 8px 12px var(--intro-shadow-soft));
    transform: translate3d(var(--char-scatter-x), var(--char-scatter-y), 0) rotate(var(--char-scatter-rotate));
  }
}

@keyframes intro-particle-scatter {
  0% {
    opacity: var(--opacity);
    filter: blur(0);
    transform: translate3d(0, 0, 0) scale(1);
  }
  100% {
    opacity: 0;
    filter: blur(1.5px);
    transform: translate3d(var(--scatter-x), var(--scatter-y), 0) scale(0.3);
  }
}

@keyframes intro-wordmark-scatter {
  0% { opacity: 0.74; letter-spacing: 0.46em; filter: blur(0); transform: translate3d(-50%, 0, 0); }
  100% { opacity: 0; letter-spacing: 0.72em; filter: blur(3px); transform: translate3d(-50%, 0.5rem, 0); }
}

@keyframes intro-aura {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(0.72) rotate(-5deg); }
  48% { opacity: 0.58; transform: translate(-50%, -50%) scale(0.96) rotate(0); }
  100% { opacity: 0.36; transform: translate(-50%, -50%) scale(1) rotate(1deg); }
}

.site-header {
  position: absolute;
  z-index: 10;
  inset: 0 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: start;
  gap: 2rem;
  padding: 1.55rem var(--space);
  border-bottom: 1px solid var(--dark-line);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brand {
  width: max-content;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-decoration: none;
}

.theme-toggle {
  position: relative;
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  margin: -0.75rem -0.5rem -0.75rem 0;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.theme-toggle::before {
  position: absolute;
  inset: 1px;
  border: 1px solid currentColor;
  border-radius: 50%;
  content: "";
  opacity: 0;
  transform: scale(0.82);
  transition: opacity 260ms ease, transform 350ms cubic-bezier(0.22, 1, 0.36, 1);
  pointer-events: none;
}

.theme-toggle:hover::before { opacity: 0.18; transform: scale(1); }
.theme-toggle:focus-visible { outline: 1px solid currentColor; outline-offset: 2px; }

.theme-toggle__mark {
  --eclipse-angle: -32deg;
  position: relative;
  display: block;
  width: 1.75rem;
  height: 1.75rem;
  border: 1px solid currentColor;
  border-radius: 50%;
  transform: rotate(var(--eclipse-angle));
  transition: transform 560ms cubic-bezier(0.22, 1, 0.36, 1);
}

.theme-toggle__disc {
  position: absolute;
  inset: 3px;
  overflow: hidden;
  border-radius: 50%;
  background: currentColor;
}

.theme-toggle__disc::after {
  position: absolute;
  top: -3px;
  left: 7px;
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: var(--canvas);
  content: "";
  transition: background-color 420ms ease;
}

html[data-theme="light"] .theme-toggle__mark { --eclipse-angle: 148deg; }
.theme-toggle:hover .theme-toggle__mark { transform: rotate(calc(var(--eclipse-angle) + 12deg)) scale(1.05); }

.hero {
  display: grid;
  grid-template-columns: minmax(22rem, 0.82fr) minmax(0, 1.18fr);
  min-height: 100svh;
  padding-top: 5.25rem;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(6rem, 10vw, 10rem) var(--space) 3.5rem;
}

.kicker,
.about-label,
.note-index,
.note-sign {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.kicker { margin: 0 0 2.75rem; color: var(--silver); }

.hero h1 {
  margin: 0;
  font-family: var(--display-cn);
  font-size: clamp(6rem, 12vw, 11rem);
  font-weight: 400;
  letter-spacing: -0.09em;
  line-height: 0.9;
}

.hero-name {
  margin: 0.75rem 0 0;
  color: transparent;
  font-family: var(--display-en);
  font-size: clamp(2.2rem, 4.7vw, 5rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1;
  -webkit-text-stroke: 1px rgba(239, 239, 236, 0.48);
}

.hero-intro {
  margin: auto 0 2.2rem;
  font-family: var(--serif);
  font-size: clamp(1.15rem, 1.6vw, 1.45rem);
  line-height: 1.75;
}

.text-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(18rem, 100%);
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--dark-line);
  font-size: 0.875rem;
  text-decoration: none;
  transition: border-color 180ms ease;
}

.text-link:hover { border-color: var(--paper); }

.hero-image {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-left: 1px solid var(--dark-line);
  background: #111;
}

.hero-image::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.15), transparent 35%);
  content: "";
  pointer-events: none;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: grayscale(1) contrast(1.05) brightness(0.82);
  transition: transform 1.1s cubic-bezier(0.22, 1, 0.36, 1), filter 600ms ease;
}

.hero-image:hover img {
  transform: scale(1.015);
  filter: grayscale(1) contrast(1.04) brightness(0.92);
}

html[data-theme="light"] .hero-name {
  -webkit-text-stroke-color: rgba(9, 9, 9, 0.38);
}

html[data-theme="light"] .text-link:hover { border-color: var(--black); }

html[data-theme="light"] .hero-image {
  background: #deded9;
}

html[data-theme="light"] .hero-image::after {
  background: linear-gradient(90deg, rgba(255, 255, 252, 0.18), transparent 35%);
}

html[data-theme="light"] .hero-image img {
  filter: grayscale(1) invert(1) contrast(0.96) brightness(1.02);
}

html[data-theme="light"] .hero-image:hover img {
  filter: grayscale(1) invert(1) contrast(1) brightness(1.06);
}

.books {
  padding: clamp(7rem, 12vw, 12rem) var(--space);
  background: var(--paper);
  color: var(--black);
}

html[data-theme="light"] .books {
  background: #e7e7e3;
  color: #0c0c0c;
}

.section-heading {
  display: grid;
  grid-template-columns: 0.55fr 1.45fr;
  align-items: end;
  gap: 1rem 4rem;
  margin-bottom: clamp(4rem, 8vw, 7rem);
}

.section-heading > p {
  margin: 0;
  color: #676763;
  font-size: 0.75rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.section-heading > p:last-child {
  grid-column: 2;
  margin-top: 0.5rem;
  letter-spacing: 0;
  text-transform: none;
}

.section-heading h2 {
  margin: 0;
  font-family: var(--display-cn);
  font-size: clamp(3rem, 6vw, 6.25rem);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 1;
}

.book-list { border-top: 1px solid var(--black); }

.book-row {
  display: grid;
  grid-template-columns: 3rem minmax(15rem, 1.4fr) minmax(12rem, 0.75fr) 4rem;
  align-items: baseline;
  width: 100%;
  min-height: 7.75rem;
  gap: 1.5rem;
  padding: 1.45rem 0;
  border: 0;
  border-bottom: 1px solid var(--light-line);
  background: transparent;
  color: inherit;
  cursor: pointer;
  text-align: left;
}

.book-number,
.book-meta,
.book-kind {
  color: #686864;
  font-size: 0.78rem;
}

.book-title {
  font-family: var(--display-cn);
  font-size: clamp(2rem, 3.6vw, 4.1rem);
  letter-spacing: -0.045em;
  line-height: 1.1;
  transition: transform 260ms cubic-bezier(0.22, 1, 0.36, 1);
}

.book-kind { text-align: right; }

.book-row:hover .book-title,
.book-row:focus-visible .book-title { transform: translateX(0.75rem); }

.about {
  display: grid;
  grid-template-columns: 0.55fr 1fr 0.45fr;
  gap: clamp(2rem, 6vw, 7rem);
  align-items: start;
  min-height: 70vh;
  padding: clamp(7rem, 12vw, 12rem) var(--space);
}

.about-label { margin: 0; color: var(--silver); }

.about h2 {
  margin: 0;
  font-family: var(--display-cn);
  font-size: clamp(3.2rem, 7vw, 7.5rem);
  font-weight: 400;
  letter-spacing: -0.065em;
  line-height: 1.04;
}

.about-copy {
  align-self: end;
  margin: 13rem 0 0;
  color: #b7b7b2;
  font-family: var(--serif);
  font-size: 1.05rem;
  line-height: 1.9;
}

html[data-theme="light"] .about-copy { color: #555551; }

footer {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 2rem;
  padding: 1.5rem var(--space);
  border-top: 1px solid var(--dark-line);
  color: var(--silver);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

footer a { text-underline-offset: 0.3rem; }

.note-panel {
  width: min(38rem, 100%);
  max-width: none;
  height: 100%;
  max-height: none;
  margin: 0 0 0 auto;
  padding: 0;
  border: 0;
  border-left: 1px solid #3d3d3a;
  background: var(--paper);
  color: var(--black);
  transform: translateX(100%);
  transition: transform 420ms cubic-bezier(0.22, 1, 0.36, 1), overlay 420ms allow-discrete, display 420ms allow-discrete;
}

.note-panel[open] { transform: translateX(0); }

@starting-style {
  .note-panel[open] { transform: translateX(100%); }
}

.note-panel::backdrop {
  background: rgba(0, 0, 0, 0.68);
  backdrop-filter: blur(5px);
}

.note-shell {
  position: relative;
  display: flex;
  height: 100%;
  flex-direction: column;
  padding: clamp(1.5rem, 4vw, 3rem);
}

.note-close {
  align-self: flex-end;
  padding: 0 0 0.25rem;
  border: 0;
  border-bottom: 1px solid currentColor;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font-size: 0.78rem;
}

.note-index { margin: 0; color: #686864; }

.note-main {
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: center;
}

.note-original {
  margin: 0 0 0.75rem;
  color: #686864;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.note-main h2 {
  margin: 0;
  font-family: var(--display-cn);
  font-size: clamp(3.5rem, 8vw, 6rem);
  font-weight: 400;
  letter-spacing: -0.06em;
  line-height: 1;
}

.note-meta { margin: 1rem 0 0; color: #686864; font-size: 0.82rem; }

.note-main blockquote {
  margin: 5rem 0 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--light-line);
  font-family: var(--serif);
  font-size: clamp(1.3rem, 2.4vw, 1.75rem);
  line-height: 1.75;
}

.note-sign { margin: 0; color: #686864; }

/* Personal space */
html {
  --things-bg: #121211;
  --things-text: #efefec;
  --thing-line: rgba(255, 255, 255, 0.16);
  --thing-muted: #a4a4a0;
  --film-bg: #191a1a;
  --novel-bg: #222221;
  --music-bg: #d1d1ca;
  --ghost-stroke: rgba(239, 239, 236, 0.12);
}

html[data-theme="light"] {
  --things-bg: #e8e8e4;
  --things-text: #111110;
  --thing-line: rgba(9, 9, 9, 0.18);
  --thing-muted: #666662;
  --film-bg: #e0e0db;
  --novel-bg: #f5f5f1;
  --music-bg: #d7d7d1;
  --ghost-stroke: rgba(9, 9, 9, 0.13);
}

.space-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(19rem, 0.92fr);
  min-height: min(82svh, 52rem);
  gap: clamp(2rem, 6vw, 8rem);
  padding: 8rem var(--space) 3.3rem;
  border-bottom: 1px solid var(--dark-line);
}

.space-hero__main {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: flex-start;
}

.space-eyebrow,
.space-hero__index > p,
.things-heading > p,
.thing__top,
.thing__bottom {
  font-family: var(--display-en);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  line-height: 1.5;
}

.space-eyebrow {
  margin: 0 0 clamp(1.5rem, 4vw, 4rem);
  color: var(--silver);
}

.space-hero h1 {
  margin: 0;
  font-family: var(--logo-cn);
  font-size: clamp(7.5rem, 13vw, 15rem);
  font-synthesis: none;
  font-weight: 400;
  letter-spacing: -0.08em;
  line-height: 0.9;
  white-space: nowrap;
}

.space-hero__roman {
  margin: 1rem 0 0;
  color: transparent;
  font-family: var(--display-en);
  font-size: clamp(2.5rem, 5vw, 5.5rem);
  font-weight: 500;
  letter-spacing: -0.065em;
  line-height: 1;
  -webkit-text-stroke: 1px rgba(239, 239, 236, 0.48);
}

html[data-theme="light"] .space-hero__roman {
  -webkit-text-stroke-color: rgba(9, 9, 9, 0.4);
}

.space-hero__bottom {
  display: flex;
  width: 100%;
  flex-direction: column;
  align-items: flex-start;
  margin-top: auto;
  padding-top: 4.5rem;
}

.space-hero__statement {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 2.5vw, 2.8rem);
  line-height: 1.35;
}

.space-hero__kinds {
  margin: 0.9rem 0 2.5rem;
  color: var(--silver);
  font-size: 0.9rem;
  letter-spacing: 0.03em;
}

.space-hero__kinds span { margin: 0 0.5em; opacity: 0.45; }

.space-hero__enter {
  display: inline-flex;
  align-items: center;
  gap: 1.25rem;
  min-height: 2.75rem;
  padding: 0 0 0.35rem;
  border-bottom: 1px solid currentColor;
  font-size: 0.9rem;
  text-decoration: none;
}

.space-hero__enter span {
  font-size: 1.15rem;
  transition: transform 240ms cubic-bezier(0.22, 1, 0.36, 1);
}

.space-hero__enter:hover span { transform: translateY(0.25rem); }

.space-hero__index {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: flex-end;
  align-self: end;
  margin-bottom: 0.2rem;
  padding-left: clamp(1.5rem, 3vw, 3.5rem);
  border-left: 1px solid var(--dark-line);
}

.space-hero__index > p {
  display: flex;
  justify-content: space-between;
  margin: 0 0 1.5rem;
  color: var(--silver);
}

.space-hero__index a {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--dark-line);
  text-decoration: none;
}

.space-hero__index a:last-child { border-bottom: 1px solid var(--dark-line); }
.space-hero__index a > span,
.space-hero__index a > small { color: var(--silver); font-size: 0.75rem; }
.space-hero__index a > small { letter-spacing: 0.08em; }
.space-hero__index strong {
  font-family: var(--display-cn);
  font-size: clamp(1.5rem, 2.2vw, 2.4rem);
  font-weight: 400;
  letter-spacing: -0.015em;
  transition: transform 260ms cubic-bezier(0.22, 1, 0.36, 1);
}
.space-hero__index a:hover strong,
.space-hero__index a:focus-visible strong { transform: translateX(0.35rem); }

.things {
  padding: clamp(5rem, 9vw, 9rem) var(--space) clamp(6rem, 10vw, 10rem);
  background: var(--things-bg);
  color: var(--things-text);
}

.things-heading {
  display: grid;
  grid-template-columns: 0.42fr 1fr;
  align-items: end;
  gap: 2rem;
  margin-bottom: clamp(3rem, 7vw, 6rem);
}

.things-heading > p {
  display: flex;
  justify-content: space-between;
  align-self: start;
  margin: 0;
  padding-top: 0.55rem;
  color: var(--thing-muted);
}

.things-heading h2 {
  margin: 0;
  font-family: var(--display-cn);
  font-size: clamp(3.5rem, 6.5vw, 7rem);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.1;
}

.things-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(0.75rem, 1.4vw, 1.4rem);
}

.thing {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: clamp(26rem, 39vw, 37rem);
  flex-direction: column;
  overflow: hidden;
  padding: clamp(1.5rem, 2.5vw, 2.6rem);
  border: 1px solid var(--thing-line);
  isolation: isolate;
}

.thing--film {
  grid-column: span 7;
  background: radial-gradient(ellipse at 60% 38%, rgba(132, 136, 139, 0.08), transparent 58%), var(--film-bg);
}

.thing--novel { grid-column: span 5; background: var(--novel-bg); }
.thing--music { grid-column: span 12; min-height: 17rem; background: var(--music-bg); color: #111110; }

html[data-theme="light"] .thing--film {
  background: radial-gradient(ellipse at 60% 38%, rgba(50, 50, 49, 0.045), transparent 58%), var(--film-bg);
}

.thing__top,
.thing__bottom {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.thing__top { color: var(--thing-muted); }
.thing--music .thing__top { color: #595955; }
.thing__bottom { margin-top: auto; padding-top: 1.2rem; border-top: 1px solid currentColor; opacity: 0.45; }

.thing__center {
  position: relative;
  z-index: 1;
  display: flex;
  min-width: 0;
  flex: 1;
  flex-direction: column;
  justify-content: flex-end;
  padding: 3rem 0 3.5rem;
}

.thing h3 {
  position: relative;
  z-index: 2;
  margin: 0;
  font-family: var(--display-cn);
  font-size: clamp(3.7rem, 6.2vw, 7rem);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.08;
}

.thing--novel h3 { max-width: 6em; font-size: clamp(3.3rem, 5.5vw, 6.1rem); }

.thing__large-roman {
  position: absolute;
  top: 12%;
  left: -0.045em;
  width: 100%;
  color: transparent;
  font-family: var(--display-en);
  font-size: clamp(4rem, 8vw, 9rem);
  font-weight: 600;
  letter-spacing: -0.095em;
  line-height: 1;
  white-space: nowrap;
  -webkit-text-stroke: 1px var(--ghost-stroke);
}

.thing__rule { width: min(10rem, 40%); height: 1px; margin-bottom: 2rem; background: currentColor; opacity: 0.55; }

.thing__music-body {
  display: flex;
  flex: 1;
  align-items: end;
  justify-content: space-between;
  gap: 3rem;
  padding: 2rem 0 2.3rem;
}

.thing--music h3 { font-size: clamp(4.5rem, 9vw, 9rem); }
.thing__music-body p { max-width: 28rem; margin: 0 0 0.5rem; color: #484845; font-size: 0.95rem; line-height: 1.7; }
.thing__music-body p span { margin: 0 0.3em; opacity: 0.45; }

.space-footer { grid-template-columns: 1fr auto; color: var(--silver); }

@media (max-width: 900px) {
  .space-hero { grid-template-columns: 1fr; min-height: 0; gap: 3.5rem; padding-top: 7rem; }
  .space-hero__bottom { padding-top: 4rem; }
  .space-hero__index { width: 100%; padding-left: 0; border-left: 0; }
  .things-heading { grid-template-columns: 1fr; gap: 1.5rem; }
  .things-heading > p { justify-content: flex-start; gap: 1.5rem; }
  .thing--film,
  .thing--novel { grid-column: span 6; }
}

@media (max-width: 600px) {
  .site-header { align-items: center; }
  .space-hero { gap: 2.7rem; padding-top: 6.1rem; padding-bottom: 2.8rem; }
  .space-eyebrow { margin-bottom: 2.1rem; }
  .space-hero h1 { font-size: clamp(6.3rem, 28vw, 9rem); }
  .space-hero__roman { margin-top: 0.55rem; font-size: clamp(2.4rem, 12vw, 4rem); }
  .space-hero__bottom { padding-top: 3.5rem; }
  .space-hero__statement { font-size: 1.9rem; }
  .space-hero__kinds { margin-bottom: 1.4rem; font-size: 0.84rem; }
  .space-hero__index > p { margin-bottom: 0.6rem; }
  .space-hero__index a { grid-template-columns: 1.75rem 1fr auto; gap: 0.55rem; padding: 0.65rem 0; }
  .space-hero__index strong { font-size: 1.4rem; }
  .space-hero__index a > small { font-size: 0.65rem; }
  .things { padding-top: 4.8rem; }
  .things-heading { margin-bottom: 2.8rem; }
  .things-heading h2 { font-size: clamp(2.9rem, 12vw, 4.8rem); }
  .thing--film,
  .thing--novel,
  .thing--music { grid-column: 1 / -1; }
  .thing { min-height: 24rem; padding: 1.35rem; }
  .thing--novel { min-height: 21rem; }
  .thing--music { min-height: 17rem; }
  .thing h3 { font-size: clamp(3.2rem, 13vw, 5rem); }
  .thing__large-roman { top: 18%; font-size: 14vw; }
  .thing__center { padding-bottom: 2.5rem; }
  .thing__music-body { flex-direction: column; align-items: flex-start; justify-content: flex-end; gap: 0.6rem; padding: 1.5rem 0 1.8rem; }
  .thing--music h3 { font-size: 5rem; }
  .thing__music-body p { margin: 0; font-size: 0.84rem; }
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-copy { min-height: 68svh; }
  .hero-image { height: 58svh; border-top: 1px solid var(--dark-line); border-left: 0; }

  .section-heading { grid-template-columns: 1fr; }
  .section-heading > p:last-child { grid-column: 1; }

  .book-row { grid-template-columns: 2.25rem 1fr auto; }
  .book-meta { grid-column: 2; }
  .book-kind { grid-column: 3; grid-row: 1; }

  .about { grid-template-columns: 1fr; min-height: auto; }
  .about-copy { max-width: 30rem; margin: 1rem 0 0 auto; }
}

@media (max-width: 600px) {
  .site-header { padding-top: 1.1rem; }

  .hero-copy { min-height: 72svh; padding-top: 7rem; }
  .hero h1 { font-size: clamp(5.5rem, 29vw, 8rem); }
  .hero-name { font-size: clamp(2.25rem, 13vw, 3.75rem); }
  .hero-image { height: 48svh; }
  .hero-image img { object-position: 57% center; }

  .book-row {
    grid-template-columns: 1.75rem 1fr auto;
    min-height: 7rem;
    gap: 0.75rem;
  }

  .book-title { font-size: clamp(1.75rem, 9vw, 2.75rem); }
  .book-meta { font-size: 0.72rem; }

  .about h2 { font-size: clamp(3.4rem, 17vw, 5rem); }

  footer { grid-template-columns: 1fr auto; }

  .intro-title { font-size: clamp(5.8rem, 28vw, 7rem); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .intro-screen { display: none !important; }
}

/* A single card opens the drawing game; the actual canvas lives on its own page. */
.game-feature {
  position: relative;
  padding: clamp(3.5rem, 6vw, 6rem) 0 clamp(4rem, 7vw, 7rem);
}
.game-feature::after {
  position: absolute;
  right: 0;
  left: 0;
  height: 1px;
  background: var(--dark-line);
  content: "";
}
.game-feature::after { bottom: 0; }
.game-feature__heading { margin-bottom: clamp(1.6rem, 2.5vw, 2.5rem); }
.game-feature__heading h2 { margin: 0.5rem 0 0; font-family: var(--display-cn); font-size: clamp(2.2rem, 3.3vw, 3.8rem); font-weight: 500; letter-spacing: -0.045em; line-height: 1.16; }
.game-feature__body {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(0.8rem, 1.5vw, 1.5rem);
}
.game-feature__card {
  --card-grid: rgba(255, 255, 255, 0.045);
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 0.83;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background-color: #161616;
  background-image: linear-gradient(var(--card-grid) 1px, transparent 1px), linear-gradient(90deg, var(--card-grid) 1px, transparent 1px);
  background-size: 12.5% 12.5%;
  color: #f4f4f1;
  isolation: isolate;
  text-decoration: none;
}
html[data-theme="light"] .game-feature__card { --card-grid: rgba(0, 0, 0, 0.055); border-color: rgba(0, 0, 0, 0.2); background-color: #fff; color: #111; }
.game-feature__card canvas { position: absolute; top: 50%; left: 0; width: 100%; aspect-ratio: 1; transform: translateY(-50%); transition: transform 700ms cubic-bezier(0.22, 1, 0.36, 1); }
.game-feature__card:hover canvas, .game-feature__card:focus-visible canvas { transform: translateY(-50%) scale(1.045); }
.game-feature__card-shade { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0, 0, 0, 0.3), transparent 27%, transparent 49%, rgba(0, 0, 0, 0.86)); }
html[data-theme="light"] .game-feature__card-shade { background: linear-gradient(180deg, rgba(255, 255, 255, 0.3), transparent 27%, transparent 49%, rgba(255, 255, 255, 0.9)); }
.game-feature__card-top, .game-feature__card-bottom { position: absolute; right: clamp(1.35rem, 2.2vw, 2rem); left: clamp(1.35rem, 2.2vw, 2rem); }
.game-feature__card-top { top: clamp(1.35rem, 2.2vw, 2rem); font-size: 0.78rem; letter-spacing: 0.16em; }
.game-feature__card-bottom { bottom: clamp(1.55rem, 2.6vw, 2.7rem); display: flex; flex-direction: column; align-items: flex-start; gap: 0.6rem; }
.game-feature__card-bottom strong { font-family: var(--display-cn); font-size: clamp(1.8rem, 2.8vw, 3.6rem); font-weight: 500; letter-spacing: -0.05em; line-height: 1.15; }
.game-feature__card-bottom span { font-size: 0.82rem; letter-spacing: 0.05em; opacity: 0.76; }

/* The separate game page keeps its playable canvas in the first viewport. */
.frog-game {
  --game-ink: #ecece8;
  --game-board: #111110;
  --game-grid: rgba(255, 255, 255, 0.045);
  display: grid;
  grid-template-columns: minmax(13rem, 0.36fr) minmax(0, 1fr);
  align-items: start;
  gap: clamp(2rem, 4vw, 4.5rem);
  max-width: 1600px;
  min-height: 100svh;
  margin-inline: auto;
  padding: clamp(7rem, 12vh, 9rem) var(--space) clamp(4rem, 8vh, 7rem);
}
html[data-theme="light"] .frog-game {
  --game-ink: #111;
  --game-board: #fff;
  --game-grid: rgba(0, 0, 0, 0.055);
}
.frog-game__copy { min-width: 0; }
.frog-game__back { display: inline-block; margin-bottom: clamp(1.5rem, 3vw, 3rem); color: var(--silver); font-size: 0.9rem; text-decoration: none; }
.frog-game__back:hover { color: inherit; text-decoration: underline; text-underline-offset: 0.3rem; }
.frog-game__copy h1 {
  max-width: 8em;
  margin: clamp(1.1rem, 2vw, 1.8rem) 0 0;
  font-family: var(--display-cn);
  font-size: clamp(2.2rem, 3.2vw, 3.6rem);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 1.22;
}
.frog-game__description { max-width: 19rem; margin: 1.5rem 0 0; color: var(--silver); font-size: 1rem; line-height: 1.7; }
.frog-game__status { min-height: 2em; margin: clamp(2rem, 5vw, 4rem) 0 0; font-family: var(--serif); font-size: clamp(1.2rem, 1.55vw, 1.5rem); line-height: 1.5; }
.frog-game__workspace { width: 100%; max-width: 52rem; min-width: 0; justify-self: end; }
.frog-game__board {
  position: relative;
  width: 100%;
  aspect-ratio: 1.3;
  overflow: hidden;
  border: 1px solid var(--dark-line);
  background-color: var(--game-board);
  background-image: linear-gradient(var(--game-grid) 1px, transparent 1px), linear-gradient(90deg, var(--game-grid) 1px, transparent 1px);
  background-size: 12.5% 12.5%;
  transition: background-color 420ms ease;
}
.frog-game__board::before,
.frog-game__board::after { position: absolute; z-index: 1; width: 1.3rem; height: 1.3rem; border-color: var(--game-ink); opacity: 0.28; pointer-events: none; content: ""; }
.frog-game__board::before { top: 0.9rem; left: 0.9rem; border-top: 1px solid; border-left: 1px solid; }
.frog-game__board::after { right: 0.9rem; bottom: 0.9rem; border-right: 1px solid; border-bottom: 1px solid; }
.frog-game__board canvas { display: block; width: 100%; height: 100%; touch-action: none; cursor: crosshair; }
.frog-game__board.is-transforming canvas,
.frog-game__board.is-finished canvas { cursor: default; }
.frog-game__placeholder { position: absolute; top: 50%; left: 50%; color: var(--silver); font-family: var(--serif); font-size: clamp(1rem, 1.4vw, 1.3rem); pointer-events: none; transform: translate(-50%, -50%); transition: opacity 250ms ease; white-space: nowrap; }
.frog-game__board.has-drawing .frog-game__placeholder { opacity: 0; }
.frog-game__actions { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-top: 1.1rem; }
.frog-game__edit-actions { display: flex; gap: clamp(1rem, 2vw, 2rem); }
.frog-game__actions button { min-height: 2.8rem; padding: 0.35rem 0; border: 0; background: transparent; color: inherit; cursor: pointer; font-size: 0.95rem; }
.frog-game__actions button:disabled { color: var(--silver); cursor: default; opacity: 0.45; }
.frog-game__actions button:not(:disabled):hover { text-decoration: underline; text-underline-offset: 0.4rem; }
.frog-game__actions .frog-game__submit { min-width: 8.5rem; padding: 0.5rem 1.2rem; border: 1px solid currentColor; text-align: center; }
.frog-game__actions .frog-game__submit:not(:disabled):hover { background: var(--game-ink); color: var(--game-board); text-decoration: none; }

@media (max-width: 900px) {
  .frog-game { grid-template-columns: 1fr; gap: 2rem; }
  .frog-game__workspace { max-width: none; justify-self: stretch; }
}

/* A personal collection: compact editorial navigation, image rail, quiet index. */
.collection-intro,
.collection,
.space-footer { max-width: 1600px; margin-inline: auto; }

.collection-intro {
  --hero-dust: rgba(239, 239, 236, 0.18);
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(8.5rem, 13vw, 13rem) var(--space) clamp(4.2rem, 7vw, 7.5rem);
}
html[data-theme="light"] .collection-intro {
  --hero-dust: rgba(9, 9, 9, 0.14);
}
.collection-intro::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background-image:
    radial-gradient(circle at 6% 21%, var(--hero-dust) 0 0.7px, transparent 1.3px),
    radial-gradient(circle at 13% 70%, var(--hero-dust) 0 0.7px, transparent 1.3px),
    radial-gradient(circle at 19% 38%, var(--hero-dust) 0 0.8px, transparent 1.4px),
    radial-gradient(circle at 26% 13%, var(--hero-dust) 0 0.7px, transparent 1.3px),
    radial-gradient(circle at 31% 80%, var(--hero-dust) 0 0.8px, transparent 1.4px),
    radial-gradient(circle at 36% 47%, var(--hero-dust) 0 0.7px, transparent 1.3px),
    radial-gradient(circle at 42% 24%, var(--hero-dust) 0 0.7px, transparent 1.3px),
    radial-gradient(circle at 47% 71%, var(--hero-dust) 0 0.8px, transparent 1.4px),
    radial-gradient(circle at 54% 10%, var(--hero-dust) 0 0.7px, transparent 1.3px),
    radial-gradient(circle at 59% 57%, var(--hero-dust) 0 0.8px, transparent 1.4px),
    radial-gradient(circle at 65% 33%, var(--hero-dust) 0 0.7px, transparent 1.3px),
    radial-gradient(circle at 71% 80%, var(--hero-dust) 0 0.7px, transparent 1.3px),
    radial-gradient(circle at 77% 16%, var(--hero-dust) 0 0.8px, transparent 1.4px),
    radial-gradient(circle at 83% 60%, var(--hero-dust) 0 0.7px, transparent 1.3px),
    radial-gradient(circle at 90% 39%, var(--hero-dust) 0 0.8px, transparent 1.4px),
    radial-gradient(circle at 96% 74%, var(--hero-dust) 0 0.7px, transparent 1.3px);
  mask-image: linear-gradient(180deg, transparent, #000 16%, #000 82%, transparent);
}
.collection-intro__stardust {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: block;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.section-kicker,
.pick-section__heading > span {
  margin: 0;
  color: var(--silver);
  font-family: var(--display-en);
  font-size: 0.69rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  line-height: 1.5;
}

.collection-intro__line {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 3rem;
  padding-top: 0;
}

.collection-intro h1 {
  margin: 0;
  font-family: var(--logo-cn);
  font-size: clamp(7.5rem, 12vw, 14rem);
  font-synthesis: none;
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.95;
}

.collection-intro h1 span { color: var(--silver); }
.collection-intro__line > p { width: min(52vw, 38rem); margin: 0; color: inherit; opacity: 0.76; font-family: var(--serif); font-size: clamp(1.8rem, 2.8vw, 2.75rem); letter-spacing: 0.02em; line-height: 1.55; text-wrap: balance; transform: translateY(0.18em); }
.collection-intro__line > p .quote-phrase { display: block; white-space: nowrap; }

.collection { padding: 0 var(--space) clamp(3.5rem, 6vw, 6rem); }

.category-tabs {
  display: flex;
  align-items: stretch;
  gap: clamp(2.5rem, 5vw, 5rem);
  border-bottom: 1px solid var(--dark-line);
}

.category-tab {
  position: relative;
  min-height: 3.75rem;
  padding: 0 0.1rem;
  border: 0;
  background: transparent;
  color: var(--silver);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  white-space: nowrap;
  transition: color 180ms ease;
}

.category-tab:hover,
.category-tab.is-active { color: inherit; }
.category-tab.is-active::after { position: absolute; right: 0; bottom: -1px; left: 0; height: 2px; background: currentColor; content: ""; }

.collection-heading,
.pick-section__heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
}

.collection-heading { margin: clamp(3.5rem, 6.5vw, 6.5rem) 0 1.65rem; }
.collection-heading h2,
.pick-section h2 { margin: 0.5rem 0 0; font-family: var(--display-cn); font-size: clamp(2.2rem, 3.3vw, 3.8rem); font-weight: 500; letter-spacing: -0.045em; line-height: 1.16; }

.feature-rail {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(0.8rem, 1.5vw, 1.5rem);
  padding-bottom: clamp(3.5rem, 6vw, 6rem);
  border-bottom: 1px solid var(--dark-line);
}

.feature-card {
  position: relative;
  display: block;
  min-width: 0;
  aspect-ratio: 0.83;
  overflow: hidden;
  background: #1b1d20;
  color: #fff;
  isolation: isolate;
  text-decoration: none;
}

.feature-card > img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform 750ms cubic-bezier(0.22, 1, 0.36, 1); }
.feature-card:hover > img,
.feature-card:focus-visible > img { transform: scale(1.045); }
.feature-card__shade { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.42), transparent 28%, transparent 46%, rgba(0,0,0,.78)); }
.feature-card__top,
.feature-card__bottom { position: absolute; right: clamp(1.1rem, 2vw, 2rem); left: clamp(1.1rem, 2vw, 2rem); display: flex; }
.feature-card__top { top: clamp(1.1rem, 2vw, 2rem); align-items: start; font-size: 0.71rem; font-weight: 500; letter-spacing: 0.13em; }
.feature-card__bottom { bottom: clamp(1.3rem, 2.5vw, 2.6rem); flex-direction: column; }
.feature-card__bottom strong { font-family: var(--display-cn); font-size: clamp(2.3rem, 3.8vw, 4.9rem); font-weight: 500; letter-spacing: -0.045em; line-height: 1.15; }

.pick-section { margin-top: clamp(5.5rem, 10vw, 10rem); }
.pick-section--first { margin-top: clamp(3.5rem, 6.5vw, 6.5rem); }
.pick-section__heading { margin-bottom: 1.75rem; }
.pick-list { border-top: 1px solid var(--dark-line); }
.pick-row { display: grid; grid-template-columns: clamp(5.25rem, 9vw, 9rem) minmax(0, 1fr) auto; align-items: center; gap: clamp(1rem, 2.3vw, 2.5rem); min-height: clamp(7rem, 11vw, 11rem); padding: 1.1rem 0; border-bottom: 1px solid var(--dark-line); scroll-margin-top: 2rem; }
.pick-row[href] { text-decoration: none; transition: background 180ms ease; }
.pick-row[href]:hover, .pick-row[href]:focus-visible { background: rgba(145, 145, 145, 0.075); }
.pick-row:target { background: rgba(145, 145, 145, 0.07); }
.pick-row > img { display: block; width: 100%; height: clamp(5.25rem, 9vw, 9rem); object-fit: cover; }
.pick-row > img.pick-row__fallback { border: 1px solid var(--dark-line); }
html[data-theme="light"] .pick-row > img.pick-row__fallback { filter: invert(1); }
.pick-row--text { grid-template-columns: minmax(0, 1fr) auto; padding-block: 1.45rem; }
.pick-row__placeholder { display: block; width: 100%; height: clamp(5.25rem, 9vw, 9rem); background: linear-gradient(140deg, #323638, #0f1011); }
.collection-empty { margin: 0; padding: 4rem 0; color: var(--silver); font-family: var(--serif); font-size: 1.25rem; }
.feature-card--plain { background: linear-gradient(145deg, #44484b, #0b0d0f); }
.pick-row__copy { min-width: 0; }
.pick-row__copy > span,
.pick-row__end { color: var(--silver); font-size: 0.7rem; font-weight: 500; letter-spacing: 0.12em; }
.pick-row__copy h3 { overflow: hidden; margin: 0.25rem 0 0; font-family: var(--display-cn); font-size: clamp(1.6rem, 2.35vw, 2.7rem); font-weight: 500; letter-spacing: -0.035em; line-height: 1.28; text-overflow: ellipsis; white-space: nowrap; }
.pick-row__copy p { overflow: hidden; margin: 0.3rem 0 0; color: var(--silver); font-size: 0.87rem; text-overflow: ellipsis; white-space: nowrap; }
.pick-row__end { align-self: center; }

.feature-card[hidden],
.pick-row[hidden] { display: none !important; }

.guestbook { max-width: 1600px; margin: 0 auto; padding: 0 var(--space) clamp(3rem, 5vw, 5rem); }
.guestbook__heading { display: flex; align-items: end; justify-content: space-between; gap: 2rem; padding-top: clamp(2.5rem, 4vw, 4rem); border-top: 1px solid var(--dark-line); }
.guestbook__heading h2 { margin: 0.5rem 0 0; font-family: var(--display-cn); font-size: clamp(2.2rem, 3.3vw, 3.8rem); font-weight: 500; letter-spacing: -0.045em; line-height: 1.16; }
.guestbook__open { min-width: 9rem; min-height: 3rem; padding: 0.65rem 1.25rem; border: 1px solid currentColor; border-radius: 0; background: transparent; color: inherit; cursor: pointer; font: inherit; font-size: 0.88rem; transition: background-color 180ms ease, color 180ms ease; }
.guestbook__open:hover { background: var(--paper); color: var(--black); }
html[data-theme="light"] .guestbook__open:hover { background: var(--black); color: var(--paper); }
.guestbook__open:focus-visible, .guestbook-dialog button:focus-visible { outline: 1px solid currentColor; outline-offset: 3px; }
.guestbook__feed { margin-top: clamp(2.5rem, 4vw, 4rem); }
.guestbook__empty { margin: 0; padding: 1.4rem 0; border-top: 1px solid var(--dark-line); color: var(--silver); font-size: 0.9rem; }
.guestbook__entry { display: grid; grid-template-columns: minmax(9rem, 0.28fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 5rem); padding: 1.8rem 0 2.2rem; border-top: 1px solid var(--dark-line); }
.guestbook__entry-head { display: flex; min-width: 0; flex-direction: column; gap: 0.45rem; font-size: 0.82rem; overflow-wrap: anywhere; }
.guestbook__entry-head strong { font-weight: 500; }
.guestbook__entry-head time { color: var(--silver); font-size: 0.78rem; white-space: nowrap; }
.guestbook__entry p { max-width: 34em; margin: 0; font-family: var(--serif); font-size: clamp(1.2rem, 2vw, 1.8rem); line-height: 1.6; overflow-wrap: anywhere; white-space: pre-wrap; }
.guestbook-dialog { width: min(calc(100% - 2rem), 640px); max-width: none; max-height: calc(100svh - 2rem); margin: auto; padding: clamp(1.5rem, 3vw, 2.75rem); overflow: auto; border: 1px solid var(--dark-line); border-radius: 0; background: #121212; color: var(--paper); box-shadow: 0 2rem 6rem rgba(0, 0, 0, 0.35); }
html[data-theme="light"] .guestbook-dialog { background: #f5f5f2; color: #0c0c0c; }
.guestbook-dialog::backdrop { background: rgba(0, 0, 0, 0.7); backdrop-filter: blur(5px); }
.guestbook-dialog__heading { display: flex; align-items: start; justify-content: space-between; gap: 1rem; margin-bottom: 2rem; }
.guestbook-dialog__heading h2 { margin: 0.45rem 0 0; font-family: var(--display-cn); font-size: clamp(2rem, 3vw, 2.8rem); font-weight: 500; letter-spacing: -0.045em; line-height: 1.18; }
.guestbook-dialog__close { padding: 0.2rem 0; border: 0; background: transparent; color: var(--silver); cursor: pointer; font: inherit; font-size: 0.82rem; text-decoration: underline; text-underline-offset: 0.25rem; }
.guestbook__form { position: relative; min-width: 0; }
.guestbook__form label { display: block; margin: 0 0 0.65rem; font-size: 0.85rem; }
.guestbook__form input[type="text"],
.guestbook__form textarea { display: block; width: 100%; padding: 0.85rem 0.9rem; border: 1px solid var(--dark-line); border-radius: 0; background: transparent; color: inherit; font: inherit; font-size: 1rem; }
.guestbook__form textarea { min-height: 11rem; resize: vertical; line-height: 1.7; }
.guestbook__form input[type="text"]::placeholder,
.guestbook__form textarea::placeholder { color: var(--silver); opacity: 0.75; }
.guestbook__form input[type="text"]:focus-visible,
.guestbook__form textarea:focus-visible { outline: 1px solid currentColor; outline-offset: 2px; }
.guestbook__anonymous { display: flex !important; align-items: center; gap: 0.7rem; width: fit-content; margin: 1.3rem 0 1.2rem !important; cursor: pointer; }
.guestbook__anonymous input { width: 1.05rem; height: 1.05rem; margin: 0; accent-color: currentColor; cursor: pointer; }
.guestbook__nickname { margin: 0 0 1.3rem; }
.guestbook__nickname label { margin-bottom: 0.5rem; }
.guestbook__trap { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.guestbook__form-bottom { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-top: 1.2rem; border-top: 1px solid var(--dark-line); }
.guestbook__form-bottom > span { color: var(--silver); font-size: 0.78rem; }
.guestbook__form-bottom button { min-height: 2.9rem; padding: 0.65rem 1.4rem; border: 1px solid currentColor; border-radius: 0; background: var(--paper); color: var(--black); cursor: pointer; font: inherit; font-size: 0.86rem; transition: opacity 180ms ease, transform 180ms ease; }
.guestbook__form-bottom button:hover:not(:disabled) { transform: translateY(-2px); }
.guestbook__form-bottom button:disabled { cursor: wait; opacity: 0.55; }
html[data-theme="light"] .guestbook__form-bottom button { background: #0c0c0c; color: #fff; }
.guestbook__status { min-height: 1.5rem; margin: 0.85rem 0 0; color: var(--silver); font-size: 0.85rem; }
.guestbook__status:empty { display: none; }
.guestbook__status.is-error { color: #c65a5a; }
html[data-theme="light"] .guestbook__status.is-error { color: #a22f2f; }

@media (max-width: 700px) {
  .game-feature { padding-top: 3rem; padding-bottom: 3.5rem; }
  .game-feature__heading { margin-bottom: 1.4rem; }
  .game-feature__heading h2 { font-size: 2.25rem; }
  .game-feature__body { display: block; }
  .game-feature__card { width: min(74vw, 23rem); aspect-ratio: 0.81; }
  .game-feature__card-bottom strong { font-size: clamp(2rem, 8vw, 3.5rem); }
  .frog-game { grid-template-columns: 1fr; gap: 1.8rem; min-height: 0; padding-top: 6.6rem; padding-bottom: 5rem; }
  .frog-game__back { margin-bottom: 1.1rem; }
  .frog-game__copy h1 { margin-top: 1.15rem; font-size: clamp(2.2rem, 8vw, 3rem); }
  .frog-game__description { margin-top: 0.9rem; font-size: 0.94rem; }
  .frog-game__status { margin-top: 0.9rem; font-size: 1.16rem; }
  .frog-game__workspace { width: 100%; justify-self: center; }
  .frog-game__board { aspect-ratio: 1.05; }
  .frog-game__actions { padding-top: 0.8rem; }
  .frog-game__actions button { min-height: 2.65rem; font-size: 0.9rem; }
  .collection-intro { padding-top: 7rem; padding-bottom: 3rem; text-align: center; }
  .collection-intro__line { flex-direction: column; align-items: center; justify-content: flex-start; gap: 1.6rem; padding-top: 0; transform: translateX(0.35rem); }
  .collection-intro h1 { font-size: clamp(6.7rem, 28vw, 10rem); transform: translateX(-0.08em); }
  .collection-intro__line > p { width: 100%; max-width: 19em; margin: 0; font-size: clamp(1.4rem, 5.5vw, 1.75rem); transform: none; }
  .category-tabs { justify-content: space-between; gap: 0.5rem; }
  .category-tab { min-height: 3.5rem; font-size: 0.94rem; }
  .collection-heading { margin-top: 3.1rem; margin-bottom: 1.2rem; }
  .collection-heading h2,
  .pick-section h2 { font-size: 2.25rem; }
  .feature-rail { display: flex; gap: 0.85rem; margin-right: calc(-1 * var(--space)); padding-right: var(--space); overflow-x: auto; overscroll-behavior-inline: contain; scroll-snap-type: x mandatory; scrollbar-width: none; }
  .feature-rail::-webkit-scrollbar { display: none; }
  .feature-card { flex: 0 0 min(74vw, 23rem); aspect-ratio: 0.81; scroll-snap-align: start; }
  .feature-card__bottom strong { font-size: clamp(2.3rem, 9vw, 3.7rem); }
  .pick-section { margin-top: 5rem; }
  .pick-row { grid-template-columns: 4.8rem minmax(0, 1fr); min-height: 6.75rem; gap: 1rem; }
  .pick-row--text { grid-template-columns: minmax(0, 1fr); }
  .pick-row > img { height: 4.8rem; }
  .pick-row__placeholder { height: 4.8rem; }
  .pick-row__copy h3 { font-size: 1.55rem; }
  .pick-row__copy p { font-size: 0.75rem; }
  .pick-row__end { display: none; }
  .guestbook { padding-bottom: 3rem; }
  .guestbook__heading { display: block; }
  .guestbook__heading h2 { font-size: 2.25rem; }
  .guestbook__open { width: 100%; margin-top: 1.8rem; }
  .guestbook__feed { margin-top: 3rem; }
  .guestbook__entry { display: block; padding: 1.3rem 0 1.6rem; }
  .guestbook__entry-head { flex-direction: row; align-items: baseline; justify-content: space-between; }
  .guestbook__entry p { margin-top: 0.7rem; font-size: clamp(1.2rem, 5vw, 1.45rem); }
  .guestbook-dialog { position: fixed; inset: auto 0 0; width: 100%; max-height: 90svh; margin: 0; padding: 1.75rem var(--space) max(1.5rem, env(safe-area-inset-bottom)); border-right: 0; border-bottom: 0; border-left: 0; }
  .guestbook__form textarea { min-height: 9rem; }
}

@media (max-width: 400px) {
  .collection-intro__line > p { max-width: 19rem; }
  .feature-card { flex-basis: 78vw; }
  .game-feature__card { width: 78vw; }
  .guestbook__form-bottom { align-items: stretch; flex-direction: column; }
  .guestbook__form-bottom button { width: 100%; }
  .pick-row { grid-template-columns: 4.25rem minmax(0, 1fr); }
  .pick-row--text { grid-template-columns: minmax(0, 1fr); }
  .pick-row > img { height: 4.25rem; }
  .pick-row__placeholder { height: 4.25rem; }
}

@media (max-width: 319px) {
  .collection-intro__line > p .quote-phrase { white-space: normal; }
}

[hidden] { display: none !important; }
.item-page { max-width: 1600px; min-height: calc(100svh - 6rem); margin: 0 auto; padding: clamp(7.5rem, 9vw, 9rem) var(--space) 7rem; }
.item-page__back { display: inline-block; margin-bottom: clamp(2.5rem, 4vw, 4rem); color: var(--silver); font-size: 0.9rem; text-decoration: none; }
.item-page__back:hover { color: inherit; }
.item-page__state { color: var(--silver); font-family: var(--serif); font-size: clamp(1.4rem, 2.5vw, 2.4rem); }
.item-page__category { margin-bottom: clamp(1rem, 1.8vw, 1.5rem); }
.item-page__hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.8fr); align-items: start; column-gap: clamp(2.5rem, 6vw, 7rem); }
.item-page__hero--no-cover { grid-template-columns: minmax(0, 42rem); }
.item-page__left { min-width: 0; }
.item-page__copy { min-width: 0; }
.item-page__copy h1 { margin: 0; font-family: var(--display-cn); font-size: clamp(3.8rem, 6.5vw, 7.5rem); font-weight: 500; letter-spacing: -0.055em; line-height: 1.1; overflow-wrap: anywhere; }
.item-page__subtitle { max-width: 38rem; margin: 1.15rem 0 0; color: var(--silver); font-size: clamp(1rem, 1.4vw, 1.25rem); line-height: 1.7; }
.item-page__cover { width: 100%; aspect-ratio: 0.84; overflow: hidden; background: #252729; }
.item-page__cover img { display: block; width: 100%; height: 100%; object-fit: cover; }
.item-page__body { width: min(100%, 42rem); margin: clamp(2.3rem, 4vw, 4rem) 0 0; padding-top: 1.7rem; border-top: 1px solid var(--dark-line); font-family: var(--serif); font-size: clamp(1.125rem, 1.45vw, 1.3rem); line-height: 1.9; overflow-wrap: anywhere; }
.item-page__body p { margin: 0; white-space: pre-line; }
.item-page__body p + p { margin-top: 1.35em; }
@media (max-width: 700px) {
  .item-page { padding-top: 6.75rem; padding-bottom: 5rem; }
  .item-page__back { margin-bottom: 2.8rem; }
  .item-page__hero { grid-template-columns: minmax(0, 1fr); grid-template-areas: "copy" "cover" "body"; }
  .item-page__hero--no-cover { grid-template-areas: "copy" "body"; }
  .item-page__left { display: contents; }
  .item-page__copy { grid-area: copy; }
  .item-page__copy h1 { font-size: clamp(3.8rem, 15vw, 6rem); }
  .item-page__cover { grid-area: cover; margin-top: 2.4rem; aspect-ratio: 1; }
  .item-page__body { grid-area: body; margin-top: 3rem; }
}