/* =========================================================
   诗色 · 五百二十六种中国色与古诗
   Editorial color atlas / 2026
   ========================================================= */

:root {
  --paper: #f3eee3;
  --paper-light: #faf6ed;
  --paper-deep: #e8dfd0;
  --ink: #1b1712;
  --ink-soft: #5d5449;
  --ink-faint: #8d8376;
  --line: rgba(27, 23, 18, 0.16);
  --line-soft: rgba(27, 23, 18, 0.09);
  --seal: #9d3028;

  --serif: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
  --kai: "Kaiti SC", "STKaiti", "KaiTi", "Noto Serif SC", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
  --mono: "SFMono-Regular", "Cascadia Mono", "Consolas", "Liberation Mono", monospace;

  --header-h: clamp(64px, 8.2vh, 84px);
  --dock-h: clamp(70px, 9.6vh, 92px);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-soft: cubic-bezier(0.65, 0, 0.35, 1);

  --base: #f3eee3;
  --ink-on-color: #1b1712;
  --accent: #9d3028;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body[data-view="reader"] {
  overflow: hidden;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

a {
  color: inherit;
}

::selection {
  background: rgba(157, 48, 40, 0.18);
}

[hidden] {
  display: none !important;
}

.noscript {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1rem;
  letter-spacing: 0.08em;
}

/* Fine paper grain, laid over the paper surfaces only. */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  opacity: 0.035;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
  background-size: 160px 160px;
}

.sr-only {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* =========================================================
   Fixed color stage
   ========================================================= */

.stage {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-color: var(--base);
  background-image:
    radial-gradient(120% 92% at 14% 4%, rgba(255, 255, 255, 0.12), transparent 58%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.035), transparent 42%, rgba(0, 0, 0, 0.075));
  transition: background-color 0.2s linear;
}

.color-wash {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0;
  background:
    linear-gradient(118deg, var(--from, #f3eee3) 0%, var(--to, #f3eee3) 100%);
}

.color-wash.is-running {
  animation: colorWash 1.08s var(--ease-soft) both;
}

@keyframes colorWash {
  0% {
    opacity: 1;
  }
  58% {
    opacity: 0.72;
  }
  100% {
    opacity: 0;
  }
}

/* =========================================================
   Top bar
   ========================================================= */

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 30;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 clamp(20px, 3.2vw, 56px);
  pointer-events: none;
  color: var(--ink);
  transition:
    color 0.55s ease,
    background-color 0.4s ease,
    border-color 0.4s ease;
}

.topbar > * {
  pointer-events: auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
  flex: 0 0 auto;
}

.brand-seal {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid currentColor;
  font-family: var(--serif);
  font-size: 1.05rem;
  line-height: 1;
  transform: rotate(-2.5deg);
  opacity: 0.9;
}

.brand-type {
  display: flex;
  flex-direction: column;
  gap: 3px;
  line-height: 1;
}

.brand-type strong {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.28em;
}

.brand-type small {
  font-family: var(--sans);
  font-size: 0.46rem;
  letter-spacing: 0.18em;
  opacity: 0.58;
}

.topbar-line {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  margin: 0;
  font-size: 0.62rem;
  letter-spacing: 0.26em;
  opacity: 0.52;
  white-space: nowrap;
}

.topbar-actions {
  display: inline-flex;
  align-items: center;
  gap: clamp(8px, 1.7vw, 28px);
  flex: 0 0 auto;
}

.text-button {
  position: relative;
  border: 0;
  background: none;
  color: inherit;
  padding: 10px 0;
  font-family: var(--sans);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  cursor: pointer;
}

.text-button span {
  margin-left: 5px;
  font-family: var(--mono);
  font-size: 0.58rem;
  opacity: 0.52;
}

.text-button::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 5px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 0.45s var(--ease);
}

.text-button:hover::after,
.text-button:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left center;
}

body[data-view="home"].is-scrolled .topbar {
  border-bottom: 1px solid rgba(27, 23, 18, 0.08);
  background: rgba(243, 238, 227, 0.96);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

body[data-view="home"].is-scrolled .brand-seal {
  opacity: 1;
}

body[data-view="home"].is-scrolled .topbar-line {
  opacity: 0.38;
}

body[data-view="reader"] .brand {
  color: var(--ink-on-color);
}

body[data-view="reader"] .topbar-line {
  opacity: 0;
}

body[data-view="reader"] .topbar-actions {
  padding: 5px 13px;
  border: 1px solid rgba(27, 23, 18, 0.14);
  border-radius: 999px;
  background: rgba(243, 238, 227, 0.78);
  color: var(--ink);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

body[data-view="reader"] .text-button::after {
  display: none;
}

body[data-view="reader"] .text-button--full {
  border-left: 1px solid rgba(27, 23, 18, 0.14);
  padding-left: 16px;
}

body[data-view="home"] .text-button--full {
  display: none;
}

body.is-pure .topbar {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

/* =========================================================
   Home · hero
   ========================================================= */

.home {
  position: relative;
  z-index: 2;
}

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  grid-template-columns: 42px minmax(0, 1.04fr) minmax(360px, 0.96fr);
  align-items: center;
  gap: clamp(24px, 3.8vw, 76px);
  padding: calc(var(--header-h) + 2.4vh) clamp(24px, 5vw, 90px) 4.5vh clamp(20px, 3vw, 52px);
}

.hero-rail {
  align-self: center;
  justify-self: center;
  height: min(54vh, 520px);
  margin: 0;
  display: flex;
  align-items: center;
  color: var(--ink-faint);
  font-family: var(--sans);
  font-size: 0.5rem;
  letter-spacing: 0.3em;
  white-space: nowrap;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  opacity: 0.72;
}

.hero-copy {
  position: relative;
  z-index: 2;
  align-self: center;
  max-width: 760px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  color: var(--ink-soft);
  font-family: var(--sans);
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.23em;
  text-transform: uppercase;
}

.eyebrow-line {
  display: inline-block;
  width: clamp(26px, 3.4vw, 48px);
  height: 1px;
  background: currentColor;
  opacity: 0.55;
}

.hero-title {
  position: relative;
  display: flex;
  align-items: flex-start;
  margin: clamp(26px, 4.3vh, 52px) 0 clamp(22px, 3.4vh, 42px);
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(7.4rem, 14.6vw, 15rem);
  font-weight: 500;
  line-height: 0.8;
  letter-spacing: -0.045em;
}

.hero-title > span {
  display: inline-block;
}

.hero-title .outline {
  color: transparent;
  -webkit-text-stroke: 1px var(--ink);
  margin-left: -0.045em;
}

.hero-title::after {
  content: "526";
  position: relative;
  top: 0.2em;
  margin-left: clamp(10px, 1.3vw, 24px);
  padding: 5px 7px;
  border: 1px solid currentColor;
  color: var(--seal);
  font-family: var(--mono);
  font-size: 0.58rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  line-height: 1;
}

.hero-lede {
  max-width: 35em;
  margin: 0;
  color: #3f382f;
  font-family: var(--serif);
  font-size: clamp(0.98rem, 1.08vw, 1.18rem);
  line-height: 2.12;
  letter-spacing: 0.055em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: clamp(30px, 4.4vh, 48px);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  min-height: 48px;
  padding: 0 23px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-decoration: none;
  cursor: pointer;
  transition:
    color 0.45s var(--ease),
    background-color 0.45s var(--ease),
    border-color 0.45s var(--ease),
    transform 0.45s var(--ease);
}

.button span {
  font-family: var(--mono);
  font-size: 0.8rem;
}

.button--ink {
  background: var(--ink);
  color: var(--paper-light);
}

.button--ink:hover,
.button--ink:focus-visible {
  background: var(--seal);
  border-color: var(--seal);
  transform: translateY(-2px);
}

.button--ghost {
  border-color: rgba(27, 23, 18, 0.28);
}

.button--ghost:hover,
.button--ghost:focus-visible {
  border-color: var(--ink);
  background: rgba(27, 23, 18, 0.045);
  transform: translateY(-2px);
}

.hero-footnote {
  margin: 17px 0 0;
  color: var(--ink-faint);
  font-size: 0.56rem;
  letter-spacing: 0.13em;
}

/* Hero color cards */

.hero-deck {
  position: relative;
  align-self: center;
  width: 100%;
  height: min(68vh, 650px);
  min-height: 470px;
}

.hero-card {
  --card-color: #eee;
  --card-ink: #111;
  position: absolute;
  top: 0;
  left: 0;
  width: clamp(136px, 12.2vw, 184px);
  height: clamp(338px, 52vh, 488px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 0;
  padding: 17px 15px;
  background: var(--card-color);
  color: var(--card-ink);
  text-align: left;
  cursor: pointer;
  box-shadow:
    0 26px 50px rgba(43, 33, 22, 0.16),
    0 2px 0 rgba(255, 255, 255, 0.16) inset;
  transition:
    transform 0.65s var(--ease),
    box-shadow 0.65s var(--ease),
    filter 0.45s ease;
}

.hero-card::after {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1px solid currentColor;
  opacity: 0.16;
  pointer-events: none;
}

.hero-card:nth-child(1) {
  left: 0;
  top: 11%;
  transform: rotate(-7deg);
  z-index: 1;
}

.hero-card:nth-child(2) {
  left: 33%;
  top: 1.5%;
  transform: rotate(1.5deg);
  z-index: 2;
}

.hero-card:nth-child(3) {
  left: 66%;
  top: 13%;
  transform: rotate(8deg);
  z-index: 3;
}

.hero-card:hover,
.hero-card:focus-visible {
  z-index: 5;
  transform: translateY(-15px) rotate(0deg);
  box-shadow:
    0 34px 68px rgba(43, 33, 22, 0.24),
    0 2px 0 rgba(255, 255, 255, 0.2) inset;
  filter: saturate(1.03);
}

.hero-card-top {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.08em;
  line-height: 1;
  opacity: 0.62;
}

.hero-card-name {
  display: block;
  align-self: flex-end;
  font-family: var(--serif);
  font-size: clamp(1.75rem, 2.85vw, 2.65rem);
  font-weight: 500;
  letter-spacing: 0.12em;
  line-height: 1.2;
  writing-mode: vertical-rl;
}

.hero-card-poem {
  display: block;
  align-self: flex-start;
  max-height: 48%;
  font-family: var(--kai);
  font-size: clamp(0.8rem, 0.92vw, 0.98rem);
  line-height: 1.9;
  letter-spacing: 0.09em;
  writing-mode: vertical-rl;
  opacity: 0.7;
}

.hero-card-pinyin {
  position: absolute;
  right: 15px;
  bottom: 18px;
  font-family: var(--mono);
  font-size: 0.48rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
  opacity: 0.48;
}

/* =========================================================
   Home · atlas
   ========================================================= */

.atlas-section {
  position: relative;
  padding: clamp(80px, 11vh, 140px) clamp(22px, 5vw, 90px) 30px;
  background:
    linear-gradient(180deg, rgba(243, 238, 227, 0) 0, var(--paper) 8%, var(--paper) 100%);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: clamp(30px, 6vw, 110px);
  padding-bottom: clamp(26px, 4vh, 46px);
  border-bottom: 1px solid var(--line);
}

.section-title h2 {
  margin: 16px 0 0;
  font-family: var(--serif);
  font-size: clamp(2.4rem, 4.2vw, 4.6rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.05em;
}

.section-lede {
  max-width: 33em;
  margin: 0 0 3px;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: clamp(0.78rem, 0.86vw, 0.94rem);
  line-height: 2;
  letter-spacing: 0.04em;
  text-align: right;
}

.atlas-tools {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-top: clamp(22px, 3.2vh, 36px);
}

.color-search {
  position: relative;
  display: flex;
  align-items: center;
  flex: 0 1 520px;
  min-width: 0;
  height: 42px;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.35s ease;
}

.color-search:focus-within {
  border-color: var(--ink);
}

.search-icon {
  flex: 0 0 auto;
  width: 24px;
  color: var(--ink-faint);
  font-family: var(--serif);
  font-size: 1rem;
  line-height: 1;
}

.color-search input {
  flex: 1;
  min-width: 0;
  height: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.color-search input::placeholder {
  color: var(--ink-faint);
  opacity: 0.8;
}

.color-search input::-webkit-search-cancel-button {
  display: none;
}

.search-clear {
  flex: 0 0 auto;
  border: 0;
  background: none;
  color: var(--ink-faint);
  padding: 5px 0 5px 10px;
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, color 0.25s ease;
}

.color-search input:not(:placeholder-shown) ~ .search-clear {
  opacity: 1;
  pointer-events: auto;
}

.search-clear:hover {
  color: var(--ink);
}

.result-count {
  margin: 0 0 12px;
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.atlas-empty {
  margin: 40px 0 0;
  padding: 40px 0;
  border-top: 1px solid var(--line-soft);
  color: var(--ink-faint);
  font-family: var(--serif);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-align: center;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: clamp(19px, 2.7vh, 30px) 0 clamp(17px, 2.4vh, 26px);
}

.filter-button {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 31px;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--ink-soft);
  font-size: 0.62rem;
  letter-spacing: 0.13em;
  cursor: pointer;
  transition:
    color 0.35s ease,
    background-color 0.35s ease,
    border-color 0.35s ease;
}

.filter-button span {
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 0.55rem;
}

.filter-button:hover,
.filter-button:focus-visible {
  border-color: rgba(27, 23, 18, 0.34);
  color: var(--ink);
}

.filter-button.is-active {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper-light);
}

.filter-button.is-active span {
  color: rgba(250, 246, 237, 0.55);
}

.atlas-grid {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: clamp(4px, 0.46vw, 8px);
}

.color-card {
  --card-color: #eee;
  --card-ink: #111;
  position: relative;
  aspect-ratio: 1 / 1.16;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  isolation: isolate;
  padding: clamp(8px, 0.8vw, 13px);
  border: 1px solid rgba(27, 23, 18, 0.1);
  background: var(--card-color);
  color: var(--card-ink);
  text-align: left;
  cursor: pointer;
  content-visibility: auto;
  contain-intrinsic-size: 164px 190px;
  transition:
    transform 0.55s var(--ease),
    box-shadow 0.55s var(--ease),
    filter 0.45s ease;
}

.color-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.12), transparent 45%, rgba(0, 0, 0, 0.07));
  opacity: 0.9;
}

.color-card:hover,
.color-card:focus-visible {
  z-index: 3;
  transform: translateY(-5px);
  box-shadow: 0 22px 42px rgba(37, 28, 18, 0.16);
  filter: saturate(1.025);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  font-family: var(--mono);
  font-size: clamp(0.4rem, 0.42vw, 0.48rem);
  letter-spacing: 0.06em;
  line-height: 1;
  opacity: 0.62;
}

.card-family {
  font-family: var(--sans);
  letter-spacing: 0.12em;
}

.card-center {
  margin-top: auto;
  margin-bottom: auto;
  padding: 7% 0;
}

.card-name {
  display: block;
  overflow: hidden;
  font-family: var(--serif);
  font-size: clamp(0.98rem, 1.08vw, 1.32rem);
  font-weight: 500;
  line-height: 1.18;
  letter-spacing: 0.09em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-pinyin {
  display: block;
  max-width: 100%;
  margin-top: 6px;
  overflow: hidden;
  font-family: var(--mono);
  font-size: clamp(0.4rem, 0.43vw, 0.48rem);
  letter-spacing: 0.05em;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
  opacity: 0.6;
}

.card-bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 8px;
}

.card-hex {
  font-family: var(--mono);
  font-size: clamp(0.4rem, 0.43vw, 0.48rem);
  letter-spacing: 0.03em;
  opacity: 0.52;
}

.card-arrow {
  width: 19px;
  height: 19px;
  display: grid;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-family: var(--mono);
  font-size: 0.52rem;
  line-height: 1;
  opacity: 0;
  transform: translateX(-5px);
  transition:
    opacity 0.35s ease,
    transform 0.35s var(--ease);
}

.color-card:hover .card-arrow,
.color-card:focus-visible .card-arrow {
  opacity: 0.7;
  transform: translateX(0);
}

.card-poem {
  position: absolute;
  left: 5px;
  right: 5px;
  bottom: 5px;
  z-index: 2;
  display: block;
  padding: 8px 8px 9px;
  border: 1px solid rgba(27, 23, 18, 0.08);
  background: rgba(250, 246, 237, 0.95);
  color: var(--ink);
  box-shadow: 0 8px 20px rgba(37, 28, 18, 0.08);
  opacity: 0;
  transform: translateY(calc(100% + 12px));
  transition:
    opacity 0.4s ease,
    transform 0.5s var(--ease);
  pointer-events: none;
}

.card-poem-text {
  display: block;
  font-family: var(--kai);
  font-size: clamp(0.58rem, 0.66vw, 0.72rem);
  line-height: 1.6;
  letter-spacing: 0.03em;
}

.card-poem-cite {
  display: block;
  margin-top: 5px;
  color: var(--ink-faint);
  font-family: var(--sans);
  font-size: 0.4rem;
  letter-spacing: 0.06em;
}

.color-card:hover .card-poem,
.color-card:focus-visible .card-poem {
  opacity: 1;
  transform: translateY(0);
}

.color-card.is-filtered-out {
  display: none;
}

/* Footer */

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: end;
  gap: 30px;
  margin-top: clamp(70px, 10vh, 130px);
  padding: 28px 0 6px;
  border-top: 1px solid var(--line);
}

.site-footer > div {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-seal {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid var(--seal);
  color: var(--seal);
  font-family: var(--serif);
  font-size: 0.9rem;
  transform: rotate(-3deg);
}

.site-footer p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.62rem;
  line-height: 1.8;
  letter-spacing: 0.08em;
}

.site-footer strong {
  color: var(--ink);
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: 0.18em;
}

.footer-source {
  text-align: right;
}

.footer-source a {
  text-decoration: none;
  border-bottom: 1px solid rgba(27, 23, 18, 0.26);
}

.footer-source a:hover {
  border-color: var(--ink);
}

.footer-top {
  border: 0;
  background: none;
  color: var(--ink-soft);
  font-size: 0.6rem;
  letter-spacing: 0.13em;
  cursor: pointer;
  padding: 8px 0;
}

.footer-top:hover {
  color: var(--ink);
}

/* =========================================================
   Reader
   ========================================================= */

.reader {
  position: fixed;
  inset: 0;
  z-index: 4;
  display: grid;
  grid-template-columns: minmax(0, 1fr) clamp(420px, 38vw, 600px);
  overflow: hidden;
}

.reader-color {
  position: relative;
  min-width: 0;
  overflow: hidden;
  color: var(--ink-on-color);
  padding: calc(var(--header-h) + 2.2vh) clamp(28px, 4.4vw, 78px) calc(var(--dock-h) + 2.6vh);
}

.color-ui {
  position: relative;
  z-index: 2;
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

.color-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  opacity: 0.7;
}

.color-index {
  display: flex;
  align-items: center;
  gap: 11px;
  margin: 0;
}

.color-index i {
  display: block;
  width: clamp(24px, 3vw, 46px);
  height: 1px;
  background: currentColor;
  opacity: 0.55;
}

.color-index span:last-child {
  font-family: var(--sans);
  letter-spacing: 0.18em;
}

.color-mini-values {
  margin: 0;
  text-align: right;
}

.color-mini-values span {
  display: block;
  margin-top: 5px;
  opacity: 0.62;
}

.color-glyph {
  position: absolute;
  left: -0.07em;
  bottom: -0.19em;
  z-index: 1;
  color: var(--ink-on-color);
  font-family: var(--serif);
  font-size: clamp(22rem, 44vw, 44rem);
  font-weight: 500;
  line-height: 0.66;
  letter-spacing: -0.06em;
  opacity: 0.05;
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
}

.color-copy {
  position: relative;
  z-index: 2;
  margin-top: auto;
  padding-bottom: clamp(3.5vh, 7vh, 78px);
}

.color-eyebrow {
  margin: 0 0 14px;
  font-family: var(--sans);
  font-size: 0.53rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  opacity: 0.55;
}

.color-copy h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(4rem, 8.5vw, 9rem);
  font-weight: 500;
  line-height: 0.88;
  letter-spacing: 0.02em;
  text-indent: -0.06em;
}

.color-copy h2:focus,
.color-copy h2:focus-visible {
  outline: 0;
}

.color-pinyin {
  margin: clamp(18px, 2.8vh, 28px) 0 0;
  font-family: var(--mono);
  font-size: clamp(0.6rem, 0.68vw, 0.74rem);
  letter-spacing: 0.35em;
  text-transform: uppercase;
  opacity: 0.66;
}

.color-hex {
  margin: 12px 0 0;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  opacity: 0.46;
}

.color-bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding-top: 15px;
  border-top: 1px solid currentColor;
  font-family: var(--sans);
  font-size: 0.52rem;
  letter-spacing: 0.1em;
  opacity: 0.65;
}

.color-bottom p {
  margin: 0;
}

.color-fullscreen {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid currentColor;
  border-radius: 999px;
  background: transparent;
  color: inherit;
  padding: 8px 13px;
  font-family: inherit;
  font-size: 0.56rem;
  letter-spacing: 0.13em;
  white-space: nowrap;
  cursor: pointer;
  opacity: 0.85;
  transition:
    background-color 0.35s ease,
    color 0.35s ease,
    opacity 0.35s ease;
}

.color-fullscreen:hover,
.color-fullscreen:focus-visible {
  background: var(--ink-on-color);
  color: var(--base);
  opacity: 1;
}

.reader.is-changing .color-copy,
.reader.is-changing .color-top,
.reader.is-changing .color-bottom {
  opacity: 0;
  transform: translateY(9px);
}

.color-copy,
.color-top,
.color-bottom {
  transition:
    opacity 0.42s ease,
    transform 0.5s var(--ease);
}

/* Paper panel */

.paper {
  --accent: #9d3028;
  position: relative;
  min-width: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: calc(var(--header-h) + 2.3vh) clamp(26px, 3vw, 48px) calc(var(--dock-h) + 2.4vh);
  background: var(--paper);
  color: var(--ink);
  box-shadow: -26px 0 70px rgba(28, 21, 13, 0.12);
  scrollbar-width: thin;
  scrollbar-color: rgba(27, 23, 18, 0.2) transparent;
}

.paper::-webkit-scrollbar {
  width: 5px;
}

.paper::-webkit-scrollbar-thumb {
  background: rgba(27, 23, 18, 0.18);
}

.paper::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.18), transparent 12%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.15), transparent 25%);
}

.paper-inner {
  position: relative;
  z-index: 1;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  transition: opacity 0.35s ease;
}

.reader.is-changing .paper-inner {
  opacity: 0.32;
}

.paper-meta {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-soft);
  font-family: var(--mono);
  font-size: 0.57rem;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
}

.paper-meta p {
  margin: 0;
}

.meta-dot {
  margin: 0 8px;
  opacity: 0.5;
}

.paper-mark {
  color: var(--ink-faint);
  font-family: var(--serif);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  writing-mode: vertical-rl;
  opacity: 0.55;
}

.poem {
  position: relative;
  margin: clamp(38px, 7.5vh, 80px) 0 0;
  padding-left: clamp(12px, 1.5vw, 22px);
}

.poem-mark {
  position: absolute;
  top: -0.46em;
  left: -0.12em;
  color: var(--accent);
  font-family: var(--serif);
  font-size: clamp(4.6rem, 6.4vw, 7rem);
  line-height: 1;
  opacity: 0.2;
  pointer-events: none;
}

.poem-lines {
  position: relative;
  z-index: 1;
}

.poem-lines p {
  margin: 0;
  font-family: var(--kai);
  font-size: clamp(1.55rem, 1.9vw, 2.1rem);
  font-weight: 400;
  line-height: 1.72;
  letter-spacing: 0.045em;
  color: #29221a;
}

.poem-lines p:nth-child(2) {
  margin-left: 1.05em;
}

.poem-lines.is-long p {
  font-size: clamp(1.28rem, 1.5vw, 1.7rem);
}

.poem-lines.is-long p:nth-child(2) {
  margin-left: 0.55em;
}

.poem cite {
  display: block;
  margin-top: clamp(18px, 2.8vh, 28px);
  font-family: var(--sans);
  font-size: 0.61rem;
  font-style: normal;
  letter-spacing: 0.12em;
  color: var(--ink-faint);
  text-align: right;
}

.color-note {
  margin: clamp(28px, 5vh, 54px) 0 clamp(24px, 4vh, 42px);
  padding-left: 1.05em;
  border-left: 1px solid var(--accent);
  color: #5d5449;
  font-family: var(--serif);
  font-size: clamp(0.8rem, 0.86vw, 0.94rem);
  line-height: 2;
  letter-spacing: 0.035em;
}

.values-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-top: auto;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}

.values-head span:first-child {
  font-family: var(--serif);
  font-size: 0.82rem;
  letter-spacing: 0.2em;
}

.values-head span:last-child {
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 0.47rem;
  letter-spacing: 0.12em;
}

.values {
  margin-top: 0;
  border-top: 0;
}

.value-row {
  width: 100%;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 8px;
  padding: 11px 2px;
  border: 0;
  border-bottom: 1px solid var(--line-soft);
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.value-row:hover,
.value-row:focus-visible {
  background: rgba(27, 23, 18, 0.035);
}

.value-label {
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 0.53rem;
  letter-spacing: 0.16em;
}

.value-main {
  font-family: var(--mono);
  font-size: clamp(0.7rem, 0.78vw, 0.83rem);
  letter-spacing: 0.045em;
  color: var(--ink);
}

.value-copy {
  color: var(--ink-faint);
  font-family: var(--sans);
  font-size: 0.51rem;
  letter-spacing: 0.08em;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.value-row:hover .value-copy,
.value-row:focus-visible .value-copy {
  opacity: 1;
}

.paper-nav {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 16px;
  margin-top: clamp(24px, 4vh, 40px);
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
}

.paper-nav-button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  border: 0;
  background: none;
  padding: 5px 0;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  transition: color 0.35s ease;
}

.paper-nav-button--next {
  margin-left: auto;
  text-align: right;
}

.paper-nav-button:hover,
.paper-nav-button:focus-visible {
  color: var(--accent);
}

.nav-arrow {
  font-family: var(--mono);
  font-size: 1rem;
  opacity: 0.65;
  transition: transform 0.4s var(--ease);
}

.paper-nav-button--prev:hover .nav-arrow {
  transform: translateX(-4px);
}

.paper-nav-button--next:hover .nav-arrow {
  transform: translateX(4px);
}

.nav-copy {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-copy small {
  color: var(--ink-faint);
  font-size: 0.49rem;
  letter-spacing: 0.14em;
}

.nav-copy b {
  font-family: var(--serif);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.1em;
}

/* =========================================================
   Pure full screen color
   ========================================================= */

body.is-pure .dock,
body.is-pure .topbar {
  opacity: 0;
  pointer-events: none;
}

.reader.is-pure {
  display: block;
  padding: 0;
}

.reader.is-pure .reader-color {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  min-height: 100vh;
  padding: 0;
  cursor: pointer;
}

.reader.is-pure .color-ui,
.reader.is-pure .paper {
  display: none;
}

.pure-hint {
  position: fixed;
  left: 50%;
  bottom: 34px;
  z-index: 5;
  margin: 0;
  transform: translateX(-50%);
  color: var(--ink-on-color);
  font-family: var(--sans);
  font-size: 0.56rem;
  letter-spacing: 0.18em;
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
}

.reader.is-pure .pure-hint {
  animation: pureHint 4.2s ease both;
}

@keyframes pureHint {
  0% {
    opacity: 0;
    transform: translate(-50%, 8px);
  }
  12%,
  62% {
    opacity: 0.55;
    transform: translate(-50%, 0);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, 0);
  }
}

/* =========================================================
   Dock
   ========================================================= */

.dock {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 31;
  height: var(--dock-h);
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 32px);
  padding: 0 clamp(16px, 3.2vw, 56px);
  border-top: 1px solid rgba(27, 23, 18, 0.12);
  background: rgba(243, 238, 227, 0.87);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  transform: translateY(105%);
  transition:
    transform 0.65s var(--ease),
    opacity 0.3s ease;
}

body[data-view="reader"] .dock {
  transform: translateY(0);
}

.dock-current {
  width: clamp(110px, 10vw, 160px);
  flex: 0 0 auto;
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-width: 0;
}

.dock-current span {
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 0.53rem;
  letter-spacing: 0.08em;
}

.dock-current strong {
  overflow: hidden;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 0.94rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dock-spectrum {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  padding-top: 4px;
}

.spectrum {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 31px;
  margin: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
}

.spectrum::-webkit-slider-runnable-track {
  height: 24px;
  border: 1px solid rgba(27, 23, 18, 0.18);
  background: var(--spectrum);
  background-size: 100% 100%;
}

.spectrum::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 7px;
  height: 34px;
  margin-top: -6px;
  border: 1px solid var(--ink);
  border-radius: 0;
  background: var(--paper-light);
  box-shadow: 0 0 0 2px var(--paper);
}

.spectrum::-moz-range-track {
  height: 24px;
  border: 1px solid rgba(27, 23, 18, 0.18);
  background: var(--spectrum);
}

.spectrum::-moz-range-thumb {
  width: 7px;
  height: 34px;
  border: 1px solid var(--ink);
  border-radius: 0;
  background: var(--paper-light);
  box-shadow: 0 0 0 2px var(--paper);
}

.spectrum:focus-visible {
  outline: 1px solid var(--ink);
  outline-offset: 5px;
}

.spectrum-caption {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 0.42rem;
  letter-spacing: 0.08em;
  opacity: 0.7;
  padding: 0 1px;
}

.dock-full {
  flex: 0 0 auto;
  border: 1px solid rgba(27, 23, 18, 0.22);
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  padding: 7px 11px;
  font-family: var(--sans);
  font-size: 0.54rem;
  letter-spacing: 0.12em;
  white-space: nowrap;
  cursor: pointer;
  transition:
    background-color 0.3s ease,
    color 0.3s ease;
}

.dock-full:hover,
.dock-full:focus-visible {
  background: var(--ink);
  color: var(--paper-light);
}

/* =========================================================
   Toast
   ========================================================= */

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(var(--dock-h) + 18px);
  z-index: 60;
  max-width: min(80vw, 560px);
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(27, 23, 18, 0.9);
  color: var(--paper-light);
  font-family: var(--sans);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 10px);
  transition:
    opacity 0.35s ease,
    transform 0.45s var(--ease);
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

body.is-pure .toast {
  bottom: 32px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.18);
  color: var(--ink-on-color);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

/* =========================================================
   Responsive
   ========================================================= */

@media (max-width: 1240px) {
  .atlas-grid {
    grid-template-columns: repeat(7, minmax(0, 1fr));
  }

  .hero {
    grid-template-columns: 34px minmax(0, 1fr) minmax(315px, 0.82fr);
    gap: 26px;
  }

  .hero-title {
    font-size: clamp(6.6rem, 13.4vw, 12rem);
  }

  .hero-card {
    width: clamp(132px, 13.5vw, 174px);
    height: clamp(320px, 50vh, 440px);
  }

  .reader {
    grid-template-columns: minmax(0, 1fr) clamp(390px, 40vw, 510px);
  }

  .color-copy h2 {
    font-size: clamp(3.7rem, 8.2vw, 7.1rem);
  }
}

@media (max-width: 960px) {
  .topbar-line {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 46px;
    min-height: auto;
    padding: calc(var(--header-h) + 44px) 7vw 7vh;
  }

  .hero-rail {
    display: none;
  }

  .hero-copy {
    max-width: 720px;
  }

  .hero-title {
    font-size: clamp(6.2rem, 19vw, 12rem);
  }

  .hero-deck {
    width: min(620px, 100%);
    height: clamp(330px, 48vh, 460px);
    min-height: 330px;
    margin: 0 auto;
  }

  .hero-card {
    width: clamp(128px, 20vw, 168px);
    height: clamp(300px, 44vh, 410px);
  }

  .hero-card:nth-child(1) {
    left: 3%;
  }

  .hero-card:nth-child(2) {
    left: 34%;
  }

  .hero-card:nth-child(3) {
    left: 65%;
  }

  .section-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 22px;
  }

  .section-lede {
    text-align: left;
  }

  .atlas-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .reader {
    grid-template-columns: 1fr;
    overflow-y: auto;
  }

  .reader-color {
    min-height: 58svh;
    padding: calc(var(--header-h) + 24px) 7vw 4vh;
  }

  .color-glyph {
    bottom: -0.12em;
    font-size: clamp(17rem, 56vw, 32rem);
  }

  .color-copy {
    padding-bottom: 2vh;
  }

  .color-copy h2 {
    font-size: clamp(3.5rem, 14vw, 7rem);
  }

  .paper {
    min-height: 58svh;
    overflow: visible;
    padding: 7vh 7vw calc(var(--dock-h) + 4vh);
    box-shadow: 0 -20px 50px rgba(28, 21, 13, 0.1);
  }

  .paper-inner {
    min-height: calc(58svh - 11vh);
  }

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

  .footer-source {
    grid-column: 1 / -1;
    grid-row: 2;
    text-align: left;
  }
}

@media (max-width: 640px) {
  :root {
    --header-h: 64px;
    --dock-h: 66px;
  }

  .topbar {
    padding: 0 16px;
  }

  .brand {
    gap: 9px;
  }

  .brand-seal {
    width: 29px;
    height: 29px;
    font-size: 0.9rem;
  }

  .brand-type strong {
    font-size: 0.9rem;
  }

  .brand-type small {
    font-size: 0.38rem;
    letter-spacing: 0.13em;
  }

  .topbar-actions {
    gap: 11px;
  }

  .text-button {
    font-size: 0.58rem;
  }

  .text-button span {
    display: none;
  }

  .hero {
    padding: calc(var(--header-h) + 28px) 20px 7vh;
  }

  .hero-lede {
    font-size: 0.92rem;
    line-height: 2;
  }

  .hero-title::after {
    top: 0.16em;
    font-size: 0.5rem;
  }

  .hero-actions {
    gap: 9px;
  }

  .button {
    min-height: 44px;
    padding: 0 17px;
    font-size: 0.6rem;
    gap: 12px;
  }

  .hero-footnote {
    font-size: 0.5rem;
    line-height: 1.8;
  }

  .hero-deck {
    height: 330px;
    min-height: 330px;
  }

  .hero-card {
    width: 31%;
    height: 278px;
    padding: 12px;
  }

  .hero-card:nth-child(1) {
    left: 1%;
  }

  .hero-card:nth-child(2) {
    left: 35%;
  }

  .hero-card:nth-child(3) {
    left: 69%;
  }

  .hero-card-name {
    font-size: 1.45rem;
  }

  .hero-card-poem {
    font-size: 0.72rem;
  }

  .hero-card-pinyin {
    display: none;
  }

  .atlas-section {
    padding: 72px 16px 22px;
  }

  .section-title h2 {
    font-size: 2.5rem;
  }

  .atlas-tools {
    align-items: stretch;
    flex-direction: column;
    gap: 10px;
  }

  .color-search {
    flex: 1 1 auto;
  }

  .result-count {
    margin: 0;
    text-align: right;
  }

  .filter-bar {
    gap: 5px;
    margin: 22px 0 14px;
    flex-wrap: wrap;
    padding-bottom: 2px;
  }

  .filter-button {
    flex: 0 0 auto;
    min-height: 28px;
    padding: 0 10px;
    font-size: 0.56rem;
  }

  .atlas-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 5px;
  }

  .color-card {
    padding: 7px;
  }

  .card-name {
    font-size: clamp(0.92rem, 4.4vw, 1.12rem);
  }

  .card-top {
    font-size: 0.38rem;
  }

  .card-pinyin {
    display: none;
  }

  .card-hex {
    font-size: 0.4rem;
  }

  .card-arrow {
    display: none;
  }

  .card-poem {
    left: 4px;
    right: 4px;
    bottom: 4px;
    padding: 7px;
  }

  .card-poem-text {
    font-size: 0.56rem;
  }

  .card-poem-cite {
    font-size: 0.36rem;
  }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 17px;
    margin-top: 68px;
  }

  .site-footer > div {
    align-items: flex-start;
  }

  .footer-source {
    grid-column: auto;
    grid-row: auto;
  }

  .footer-top {
    justify-self: start;
    padding-left: 0;
  }

  .reader-color {
    min-height: 62svh;
    padding: calc(var(--header-h) + 18px) 20px 3.5vh;
  }

  .color-top {
    font-size: 0.5rem;
  }

  .color-mini-values {
    display: none;
  }

  .color-glyph {
    font-size: 62vw;
    opacity: 0.06;
  }

  .color-copy h2 {
    font-size: clamp(3.1rem, 16vw, 5.7rem);
  }

  .color-pinyin {
    margin-top: 14px;
    font-size: 0.55rem;
    letter-spacing: 0.24em;
  }

  .color-bottom {
    align-items: center;
    gap: 12px;
    font-size: 0.44rem;
    line-height: 1.7;
  }

  .color-fullscreen {
    padding: 7px 10px;
    font-size: 0.5rem;
  }

  .paper {
    min-height: 60svh;
    padding: 6vh 22px calc(var(--dock-h) + 4vh);
  }

  .paper-inner {
    min-height: calc(60svh - 10vh);
  }

  .poem {
    margin-top: 38px;
  }

  .poem-lines p {
    font-size: clamp(1.42rem, 6vw, 1.72rem);
  }

  .poem-lines.is-long p {
    font-size: 1.22rem;
  }

  .poem cite {
    font-size: 0.55rem;
    line-height: 1.7;
  }

  .color-note {
    font-size: 0.78rem;
    line-height: 1.95;
  }

  .value-row {
    grid-template-columns: 44px minmax(0, 1fr) auto;
  }

  .value-main {
    font-size: 0.68rem;
  }

  .value-copy {
    opacity: 0.6;
  }

  .dock {
    gap: 8px;
    padding: 0 12px;
  }

  .dock-current {
    display: none;
  }

  .dock-spectrum {
    gap: 1px;
    padding-top: 2px;
  }

  .spectrum {
    height: 27px;
  }

  .spectrum::-webkit-slider-runnable-track {
    height: 18px;
  }

  .spectrum::-webkit-slider-thumb {
    width: 5px;
    height: 26px;
    margin-top: -5px;
  }

  .spectrum::-moz-range-track {
    height: 18px;
  }

  .spectrum::-moz-range-thumb {
    width: 5px;
    height: 26px;
  }

  .spectrum-caption {
    font-size: 0.36rem;
  }

  .spectrum-caption span:nth-child(2) {
    display: none;
  }

  .dock-full {
    padding: 6px 9px;
    font-size: 0.5rem;
  }

  body[data-view="reader"] .topbar-actions {
    padding: 4px 9px;
  }

  body[data-view="reader"] .text-button--full {
    padding-left: 9px;
  }

  .site-footer p {
    font-size: 0.56rem;
  }
}

@media (max-width: 480px) {
  .atlas-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 380px) {
  .hero-title {
    font-size: 20vw;
  }

  .hero-card {
    height: 255px;
  }

  .hero-card-name {
    font-size: 1.3rem;
  }
}

/* =========================================================
   Reduced motion & focus
   ========================================================= */

:focus-visible {
  outline: 1px solid currentColor;
  outline-offset: 4px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}