:root {
  color-scheme: light;
  --ink: #111111;
  --ink-soft: #4b4b4b;
  --muted: #777777;
  --paper: #f7f7f4;
  --panel: #ffffff;
  --panel-soft: #eeeeeb;
  --line: #d9d9d4;
  --line-strong: #b8b8b2;
  --inverse: #f7f7f4;
  --solid: #ffffff;
  --header-bg: rgba(255, 255, 255, 0.86);
  --hero-fade-start: rgba(255, 255, 255, 0.86);
  --hero-fade-end: rgba(247, 247, 244, 0.96);
  --hover-bg: #111111;
  --hover-text: #f7f7f4;
  --feature-bg: #111111;
  --feature-text: #f7f7f4;
  --footer-text: #c9c9c4;
  --dark-panel-text: #c9c9c4;
  --shadow-card: 0 14px 34px rgba(17, 17, 17, 0.08);
  --content: 1240px;
  --shadow-soft: 0 18px 50px rgba(17, 17, 17, 0.08);
  --font-title: "Noto Serif SC", "Source Han Serif SC", "Songti SC", STSong, serif;
  --font-body: "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-rounded: "M PLUS Rounded 1c", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-out-quint: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --ink: #f2f0ea;
  --ink-soft: #d3cfc6;
  --muted: #9c968c;
  --paper: #11100e;
  --panel: #191816;
  --panel-soft: #24221f;
  --line: #34312c;
  --line-strong: #5a554c;
  --inverse: #11100e;
  --solid: #151411;
  --header-bg: rgba(17, 16, 14, 0.86);
  --hero-fade-start: rgba(17, 16, 14, 0.9);
  --hero-fade-end: rgba(17, 16, 14, 0.96);
  --hover-bg: #050505;
  --hover-text: #f2f0ea;
  --feature-bg: #0b0a09;
  --feature-text: #f2f0ea;
  --footer-text: #d3cfc6;
  --dark-panel-text: #d3cfc6;
  --shadow-card: 0 16px 36px rgba(0, 0, 0, 0.36);
  --shadow-soft: 0 22px 56px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
  border-radius: 0 !important;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background:
    linear-gradient(180deg, var(--solid) 0, var(--paper) 360px),
    var(--paper);
  font-family: var(--font-body);
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

button,
input,
select {
  font: inherit;
}

button {
  color: inherit;
}

iconify-icon {
  display: inline-block;
  color: currentColor;
  line-height: 1;
  vertical-align: -0.125em;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: 5.4rem;
  font-weight: 900;
  line-height: 1.08;
  text-wrap: balance;
}

h2 {
  margin-bottom: 18px;
  font-size: 2.35rem;
  font-weight: 700;
  line-height: 1.24;
  text-wrap: balance;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.18rem;
  font-weight: 700;
  line-height: 1.35;
}

h1,
h2,
h3 {
  font-family: var(--font-title);
}

p {
  line-height: 1.85;
}

code {
  padding: 2px 5px;
  background: var(--panel-soft);
  border: 1px solid var(--line);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.92em;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  color: var(--hover-text);
  background: var(--hover-bg);
  transform: translateY(-160%);
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  min-height: 68px;
  padding: 16px max(24px, calc((100vw - var(--content)) / 2));
  background: var(--header-bg);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark span {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: var(--inverse);
  background: var(--ink);
  font-weight: 600;
}

.brand-mark strong {
  font-size: 0.95rem;
  font-weight: 600;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-width: 0;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 8px 10px;
  color: var(--ink-soft);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--hover-text);
  background: var(--hover-bg);
  outline: none;
}

.site-nav iconify-icon,
.header-tools iconify-icon {
  width: 18px;
  height: 18px;
}

.header-tools {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
}

.nav-icon-link,
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  min-height: 32px;
  padding: 0;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  opacity: 0.76;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.nav-icon-link:hover,
.nav-icon-link:focus-visible,
.theme-toggle:hover,
.theme-toggle:focus-visible {
  color: var(--hover-text);
  background: var(--hover-bg);
  border-color: var(--hover-bg);
  outline: none;
  opacity: 1;
  transform: translateY(-1px);
}

.hero-section {
  display: grid;
  grid-template-columns: minmax(320px, 0.96fr) minmax(380px, 1.04fr);
  gap: 72px;
  align-items: center;
  min-height: calc(88svh - 68px);
  padding: 86px max(24px, calc((100vw - var(--content)) / 2)) 96px;
  background:
    linear-gradient(180deg, var(--hero-fade-start), var(--hero-fade-end)),
    var(--paper);
  border-bottom: 1px solid var(--line);
}

.hero-copy {
  min-width: 0;
}

.eyebrow,
.section-kicker {
  display: block;
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 600;
}

.hero-lede {
  max-width: 640px;
  margin-bottom: 32px;
  color: var(--ink-soft);
  font-size: 1.1rem;
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  align-items: center;
  margin-top: 20px;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.8;
}

.hero-proof span {
  display: inline-flex;
  align-items: center;
  color: inherit;
}

.hero-proof span:first-child {
  color: var(--ink);
  font-weight: 600;
}

.hero-proof span + span::before {
  width: 3px;
  height: 3px;
  margin: 0 10px;
  background: currentColor;
  content: "";
}

.hero-actions,
.gallery-footer,
.dialog-meta,
.audit-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.button,
.tool-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 46px;
  padding: 11px 16px;
  border: 1px solid var(--ink);
  cursor: pointer;
  text-decoration: none;
  transition: transform 180ms var(--ease-out-quart), background 180ms ease, color 180ms ease, border-color 180ms ease;
  font-weight: 600;
}

.button:hover,
.tool-button:hover {
  transform: translateY(-1px);
}

.button:active,
.tool-button:active,
.card-button:active {
  transform: translateY(0) scale(0.985);
}

.button:focus-visible,
.tool-button:focus-visible,
input:focus-visible,
select:focus-visible,
.open-link:focus-visible,
.card-button:focus-visible,
.copy-color-button:focus-visible,
.copy-format select:focus-visible,
.text-link:focus-visible,
.nav-icon-link:focus-visible,
.theme-toggle:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}

.button iconify-icon,
.tool-button iconify-icon,
.open-link iconify-icon,
.card-button iconify-icon,
.theme-toggle iconify-icon {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  transition: transform 180ms var(--ease-out-quart);
}

.button:hover iconify-icon,
.tool-button:hover iconify-icon,
.card-button:hover iconify-icon,
.theme-toggle:hover iconify-icon {
  transform: translateY(-1px);
}

.theme-toggle:active iconify-icon {
  transform: rotate(18deg) scale(0.95);
}

.button-primary {
  color: var(--inverse);
  background: var(--ink);
}

.button-primary:hover {
  color: var(--hover-text);
  background: var(--hover-bg);
  border-color: var(--hover-bg);
}

.button-secondary,
.tool-button {
  color: var(--ink);
  background: transparent;
  border-color: var(--line-strong);
}

.button-secondary:hover,
.tool-button:hover {
  color: var(--hover-text);
  background: var(--hover-bg);
  border-color: var(--hover-bg);
}

.button-large {
  width: 100%;
  min-height: 56px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  max-width: 680px;
  margin: 46px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.hero-stats div {
  min-width: 0;
  padding: 22px 18px 22px 0;
}

.hero-stats div + div {
  padding-left: 22px;
  border-left: 1px solid var(--line);
}

.hero-stats dt {
  font-family: var(--font-rounded);
  font-variant-numeric: tabular-nums;
  font-size: 1.7rem;
  font-weight: 800;
}

.hero-stats dd {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.hero-gallery {
  min-width: 0;
}

.ink-panel {
  padding: 0;
}

.mosaic {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  max-height: 64vh;
  overflow: hidden;
  mask-image: linear-gradient(180deg, transparent 0, #000 12%, #000 88%, transparent 100%);
}

.film-strip {
  min-width: 0;
  max-height: 64vh;
  overflow: hidden;
}

.film-track {
  display: grid;
  gap: 8px;
  animation: film-roll-up calc(30s + var(--strip-index) * 3s) linear infinite;
  animation-delay: calc(var(--strip-index) * -4s);
  will-change: transform;
}

.film-strip:nth-child(even) .film-track {
  animation-name: film-roll-down;
}

.mosaic img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background: var(--panel-soft);
  box-shadow: 0 10px 28px color-mix(in srgb, var(--ink) 6%, transparent);
}

@keyframes film-roll-up {
  from {
    transform: translateY(0);
  }

  to {
    transform: translateY(calc(-50% - 4px));
  }
}

@keyframes film-roll-down {
  from {
    transform: translateY(calc(-50% - 4px));
  }

  to {
    transform: translateY(0);
  }
}

.intro-band,
.section-shell,
.knowledge-section,
.download-section,
.open-section,
.audit-section,
.author-section {
  padding-inline: max(24px, calc((100vw - var(--content)) / 2));
}

.intro-band {
  padding-top: 84px;
  padding-bottom: 88px;
  background: var(--solid);
  border-bottom: 1px solid var(--line);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.85fr) minmax(320px, 1fr);
  gap: 72px;
  align-items: end;
}

.intro-grid p,
.section-heading p,
.download-copy p,
.knowledge-note p,
.site-footer p {
  color: var(--ink-soft);
}

.section-shell,
.knowledge-section,
.open-section,
.audit-section {
  padding-top: 96px;
  padding-bottom: 104px;
}

.section-heading {
  display: block;
  max-width: 760px;
  margin-bottom: 42px;
}

.section-heading .section-kicker {
  margin-bottom: 14px;
}

.section-heading h2 {
  margin-bottom: 16px;
}

.section-heading p {
  max-width: 720px;
  margin-bottom: 0;
}

.toolbar {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) auto minmax(152px, auto);
  gap: 8px;
  align-items: center;
  margin-bottom: 26px;
  padding: 0;
}

.search-box,
.hue-filter {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 15px;
  color: var(--muted);
  background: var(--panel);
  border: 1px solid var(--line);
  font-weight: 600;
  transition: transform 180ms var(--ease-out-quart), border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.search-box:focus-within,
.hue-filter:focus-within {
  color: var(--ink);
  background: var(--solid);
  border-color: var(--line-strong);
  transform: translateY(-1px);
}

.search-box input,
.hue-filter select {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  color: var(--ink);
  background: transparent;
}

.search-box iconify-icon {
  width: 17px;
  height: 17px;
  flex: 0 0 auto;
  color: var(--muted);
  transition: color 180ms ease, transform 180ms var(--ease-out-quart);
}

.search-box:focus-within iconify-icon {
  color: var(--ink);
  transform: scale(1.06);
}

.search-box input::placeholder {
  color: var(--muted);
  opacity: 0.88;
}

.hue-filter {
  position: relative;
  min-width: 152px;
  padding-right: 34px;
}

.hue-filter select {
  min-width: 116px;
  appearance: none;
  cursor: pointer;
}

.hue-filter::after {
  position: absolute;
  top: 50%;
  right: 15px;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  content: "";
  pointer-events: none;
  transition: transform 180ms var(--ease-out-quart);
  transform: translateY(-68%) rotate(45deg);
}

.hue-filter:focus-within::after {
  transform: translateY(-42%) rotate(225deg);
}

.toolbar .tool-button {
  min-height: 48px;
  padding-inline: 15px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.color-card {
  position: relative;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  animation: color-card-enter 360ms var(--ease-out-quint) both;
  transition: transform 220ms var(--ease-out-quart), border-color 180ms ease, box-shadow 180ms ease;
}

.color-card:nth-child(2) {
  animation-delay: 24ms;
}

.color-card:nth-child(3) {
  animation-delay: 48ms;
}

.color-card:nth-child(4) {
  animation-delay: 72ms;
}

.color-card:nth-child(n+5) {
  animation-delay: 96ms;
}

.color-card:hover,
.color-card:focus-within {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.color-card img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background: var(--panel-soft);
  transition: transform 320ms var(--ease-out-quart);
}

.color-card:hover img,
.color-card:focus-within img {
  transform: scale(1.018);
}

.color-card:hover .card-meta,
.color-card:focus-within .card-meta {
  color: var(--hover-text);
  background: var(--hover-bg);
  border-color: var(--hover-bg);
}

.color-card:hover .card-meta small,
.color-card:focus-within .card-meta small {
  color: color-mix(in srgb, var(--hover-text) 74%, transparent);
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 13px 12px 14px;
  border-top: 1px solid var(--line);
}

.card-meta span {
  min-width: 0;
}

.card-meta strong,
.card-meta small {
  display: block;
}

.card-meta strong {
  overflow: hidden;
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.45;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-meta small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.78rem;
}

.card-button {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: var(--ink);
  background: color-mix(in srgb, var(--panel) 78%, transparent);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: transform 180ms var(--ease-out-quart), background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.color-card > .card-button {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 2;
  backdrop-filter: blur(10px);
}

.card-button:hover {
  color: var(--hover-text);
  background: var(--hover-bg);
  border-color: var(--hover-bg);
  transform: translateY(-1px);
}

.copy-color-control {
  position: absolute;
  top: 10px;
  left: 10px;
  right: 54px;
  z-index: 2;
  display: flex;
  align-items: stretch;
  min-width: 0;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 180ms ease, transform 180ms var(--ease-out-quart);
}

.color-card:hover .copy-color-control,
.color-card:focus-within .copy-color-control {
  opacity: 1;
  transform: translateY(0);
}

.copy-color-button,
.copy-format select {
  min-height: 34px;
  color: var(--hover-text);
  background: var(--hover-bg);
  border: 1px solid var(--hover-bg);
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 600;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.copy-color-button {
  display: inline-flex;
  min-width: 0;
  flex: 1 1 auto;
  align-items: center;
  gap: 4px;
  overflow: hidden;
  padding: 7px 9px;
  white-space: nowrap;
}

.copy-color-button span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.copy-format {
  display: block;
  flex: 0 0 72px;
}

.copy-format select {
  width: 100%;
  padding: 7px 8px;
  border-left-color: color-mix(in srgb, var(--hover-text) 28%, transparent);
}

.copy-color-button:hover,
.copy-color-button[data-copied="true"],
.copy-format select:hover {
  color: var(--hover-text);
  background: var(--hover-bg);
  border-color: var(--hover-text);
}

.copy-color-button[data-copied="true"] {
  animation: copy-confirm 420ms var(--ease-out-quint);
}

@keyframes color-card-enter {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes copy-confirm {
  0% {
    transform: translateY(0) scale(1);
  }

  45% {
    transform: translateY(0) scale(1.045);
  }

  100% {
    transform: translateY(0) scale(1);
  }
}

.button:disabled,
.tool-button:disabled {
  cursor: wait;
  opacity: 0.7;
  transform: none;
}

.gallery-footer {
  justify-content: center;
  margin-top: 34px;
}

.gallery-footer p {
  flex-basis: 100%;
  margin: 0;
  color: var(--muted);
  text-align: center;
}

.empty-state {
  grid-column: 1 / -1;
  display: grid;
  gap: 8px;
  min-height: 220px;
  place-content: center;
  padding: 42px 24px;
  color: var(--muted);
  text-align: center;
  background: var(--solid);
  border: 1px dashed var(--line-strong);
}

.empty-state strong {
  color: var(--ink);
  font-size: 1.1rem;
}

.empty-state span {
  line-height: 1.75;
}

.audit-section {
  background: var(--solid);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.audit-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.audit-grid article {
  min-width: 0;
  padding: 24px;
  background: var(--paper);
  border: 1px solid var(--line);
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.audit-grid article + article {
  padding-left: 24px;
}

.audit-grid strong {
  display: block;
  font-family: var(--font-rounded);
  font-variant-numeric: tabular-nums;
  font-size: 2.35rem;
  font-weight: 800;
}

.audit-grid span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
}

.audit-grid article:hover {
  color: var(--hover-text);
  background: var(--hover-bg);
  border-color: var(--hover-bg);
  transform: translateY(-1px);
}

.audit-grid article:hover span {
  color: color-mix(in srgb, var(--hover-text) 72%, transparent);
}

.audit-actions {
  margin-top: 26px;
}

.text-link {
  color: var(--ink);
  text-underline-offset: 5px;
}

.text-button {
  padding: 0;
  background: transparent;
  border: 0;
  cursor: pointer;
  text-decoration: underline;
}

.text-button:hover,
.text-button:focus-visible {
  color: var(--hover-text);
  background: var(--hover-bg);
  outline: none;
}

.knowledge-section {
  background: var(--paper);
}

.knowledge-layout {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
}

.knowledge-note {
  min-height: 270px;
  padding: 30px 26px 32px;
  background: var(--panel);
  border: 0;
  transition: background 180ms ease, color 180ms ease;
}

.knowledge-note span {
  display: block;
  margin-bottom: 46px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  transition: color 180ms ease;
}

.knowledge-note p {
  transition: color 180ms ease;
}

.knowledge-note:hover {
  color: var(--hover-text);
  background: var(--hover-bg);
}

.knowledge-note:hover span,
.knowledge-note:hover p {
  color: color-mix(in srgb, var(--hover-text) 72%, transparent);
}

.note-wide {
  grid-column: auto;
}

.note-tall {
  grid-row: auto;
}

.download-section {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(320px, 440px);
  gap: 72px;
  align-items: center;
  padding-top: 100px;
  padding-bottom: 104px;
  background: var(--solid);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.download-panel {
  padding: 30px;
  color: var(--feature-text);
  background: var(--feature-bg);
  box-shadow: var(--shadow-soft);
}

.download-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 16px;
  margin-bottom: 22px;
}

.download-meta strong {
  font-family: var(--font-rounded);
  font-variant-numeric: tabular-nums;
  font-size: 1.35rem;
  font-weight: 800;
}

.download-meta span {
  color: var(--dark-panel-text);
}

.download-panel .button-primary {
  color: var(--feature-bg);
  background: var(--feature-text);
  border-color: var(--feature-text);
}

.download-panel .button-primary:hover {
  color: var(--feature-text);
  background: transparent;
  border-color: var(--feature-text);
}

.download-panel .button-primary:focus-visible {
  outline-color: var(--feature-text);
}

.download-direct {
  display: block;
  margin-top: 14px;
  color: var(--dark-panel-text);
  font-size: 0.9rem;
  line-height: 1.65;
  text-align: center;
  text-underline-offset: 5px;
}

.download-direct:hover,
.download-direct:focus-visible {
  color: var(--feature-text);
  background: transparent;
  outline: none;
}

.progress {
  height: 8px;
  margin-top: 18px;
  overflow: hidden;
  background: color-mix(in srgb, var(--inverse) 18%, transparent);
}

.progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--feature-text);
  transition: width 220ms var(--ease-out-quart);
}

.download-status {
  min-height: 48px;
  margin: 16px 0 0;
  color: var(--dark-panel-text);
  font-size: 0.9rem;
  line-height: 1.75;
}

.open-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
}

.author-section {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(42px, 6vw, 72px);
  align-items: start;
  padding-top: 112px;
  padding-bottom: 112px;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.author-copy {
  position: relative;
  display: grid;
  justify-items: center;
  width: min(100%, 860px);
  margin: 0 auto;
  min-width: 0;
  text-align: center;
}

.author-heading {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: baseline;
  margin-bottom: 22px;
}

.author-heading .section-kicker {
  margin: 0;
}

.author-heading span:last-child {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 600;
}

.author-copy h2 {
  margin-bottom: 8px;
  font-size: clamp(3.2rem, 8vw, 6.6rem);
  line-height: 0.95;
}

.author-role {
  margin-bottom: 30px;
  color: var(--ink);
  font-size: 1.08rem;
  font-weight: 600;
}

.author-statement {
  max-width: 680px;
  margin-bottom: 0;
  color: var(--ink-soft);
}

.author-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  width: min(100%, 560px);
  margin: 30px 0 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.author-meta div {
  min-width: 0;
  padding: 16px 22px;
}

.author-meta div + div {
  border-left: 1px solid var(--line);
}

.author-meta dt {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 600;
}

.author-meta dd {
  margin: 6px 0 0;
  color: var(--ink);
  font-weight: 600;
}

.author-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.support-panel {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  justify-items: center;
  gap: 14px;
  width: min(100%, 400px);
  min-width: 0;
  min-height: 0;
  margin: 0 auto;
  padding: clamp(20px, 3vw, 26px);
  overflow: hidden;
  text-align: center;
  color: var(--feature-text);
  background: var(--feature-bg);
  box-shadow: var(--shadow-soft);
}

.support-panel::before {
  position: absolute;
  top: 0;
  right: clamp(22px, 5vw, 44px);
  left: clamp(22px, 5vw, 44px);
  height: 1px;
  background: color-mix(in srgb, var(--feature-text) 22%, transparent);
  border: 0;
  content: "";
  pointer-events: none;
}

.support-panel .section-kicker,
.support-panel p {
  color: var(--dark-panel-text);
}

.support-copy {
  position: relative;
  z-index: 1;
  max-width: 280px;
  margin: 0 auto;
}

.support-panel h3 {
  max-width: 280px;
  margin-bottom: 0;
  font-size: clamp(1.08rem, 1.6vw, 1.35rem);
  line-height: 1.25;
  text-wrap: balance;
}

.support-qr {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 8px;
  justify-items: center;
  margin: 0 auto;
  padding-top: 0;
  width: min(100%, 150px);
  border-top: 0;
}

.support-panel img {
  width: 112px;
  max-width: min(38vw, 132px);
  height: auto;
  padding: 7px;
  background: #ffffff;
}

.support-qr figcaption {
  color: var(--dark-panel-text);
  font-size: 0.82rem;
  font-weight: 600;
}

.open-link {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-rows: auto 1fr;
  gap: 32px 24px;
  min-height: 236px;
  padding: clamp(24px, 4vw, 38px);
  overflow: hidden;
  text-decoration: none;
  background: var(--solid);
  border: 0;
  transition: transform 180ms var(--ease-out-quart), background 180ms ease, border-color 180ms ease, color 180ms ease, box-shadow 180ms ease;
}

.open-link:nth-child(2),
.open-link:nth-child(3) {
  background: var(--paper);
}

:root[data-theme="dark"] .open-link {
  color: var(--ink);
  background: var(--solid);
}

:root[data-theme="dark"] .open-link:nth-child(2),
:root[data-theme="dark"] .open-link:nth-child(3) {
  background: var(--panel);
}

.open-link:nth-child(2),
.open-link:nth-child(4) {
  align-content: end;
}

.open-link:nth-child(3) {
  min-height: 286px;
}

.open-link::before {
  position: absolute;
  right: 24px;
  bottom: -0.24em;
  color: color-mix(in srgb, var(--ink) 5%, transparent);
  font-family: var(--font-rounded);
  font-size: clamp(5.6rem, 13vw, 11rem);
  font-weight: 900;
  line-height: 1;
  content: attr(data-open-number);
  pointer-events: none;
  transition: color 180ms ease, transform 220ms var(--ease-out-quart);
}

.open-link:hover {
  color: var(--hover-text);
  background: var(--hover-bg);
  box-shadow: var(--shadow-card);
  transform: translateY(-1px);
}

.open-link:hover::before {
  color: color-mix(in srgb, var(--hover-text) 13%, transparent);
  transform: translateY(-3px);
}

.open-link:hover .open-index,
.open-link:hover iconify-icon,
.open-link:hover small {
  color: color-mix(in srgb, var(--hover-text) 74%, transparent);
}

.open-link:hover iconify-icon {
  transform: translateX(2px);
}

.open-link iconify-icon {
  grid-column: 2;
  grid-row: 1;
  width: 24px;
  height: 24px;
  color: var(--muted);
}

.open-link > span:last-child {
  position: relative;
  z-index: 1;
  grid-column: 1 / -1;
  grid-row: 2;
  min-width: 0;
  align-self: end;
}

.open-index {
  position: relative;
  z-index: 1;
  grid-column: 1;
  grid-row: 1;
  color: var(--muted);
  font-family: var(--font-rounded);
  font-variant-numeric: tabular-nums;
  font-size: 0.96rem;
  font-weight: 800;
}

.open-link strong,
.open-link small {
  display: block;
}

.open-link strong {
  max-width: 420px;
  font-family: var(--font-title);
  font-size: clamp(1.25rem, 2.4vw, 1.82rem);
  font-weight: 600;
  line-height: 1.32;
}

.open-link small {
  max-width: 480px;
  margin-top: 16px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.78;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  align-items: center;
  justify-content: space-between;
  padding: 34px max(24px, calc((100vw - var(--content)) / 2));
  color: var(--footer-text);
  background: var(--feature-bg);
}

.site-footer p {
  margin: 0;
  color: inherit;
}

.preview-dialog {
  width: min(920px, calc(100vw - 32px));
  padding: 0;
  overflow: hidden;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--line);
}

.preview-dialog[open],
.master-list-dialog[open] {
  animation: dialog-enter 240ms var(--ease-out-quint) both;
}

.preview-dialog::backdrop,
.master-list-dialog::backdrop {
  background: rgba(17, 17, 17, 0.72);
  backdrop-filter: blur(8px);
}

.preview-dialog[open]::backdrop,
.master-list-dialog[open]::backdrop {
  animation: backdrop-enter 220ms ease both;
}

.preview-dialog img {
  width: 100%;
  max-height: 78vh;
  object-fit: contain;
  background: var(--panel-soft);
}

.dialog-close {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 2;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  color: var(--ink);
  background: color-mix(in srgb, var(--panel) 84%, transparent);
  border: 1px solid var(--line);
  cursor: pointer;
  font-size: 1.35rem;
}

.dialog-close:hover,
.dialog-close:focus-visible {
  color: var(--hover-text);
  background: var(--hover-bg);
  border-color: var(--hover-bg);
  outline: none;
}

@keyframes dialog-enter {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.985);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes backdrop-enter {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.dialog-meta {
  justify-content: space-between;
  padding: 16px;
  border-top: 1px solid var(--line);
}

.master-list-dialog {
  width: min(1040px, calc(100vw - 32px));
  max-height: min(86vh, 860px);
  padding: 0;
  overflow: hidden;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--line);
}

.master-list-head {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  padding: 30px clamp(22px, 4vw, 34px) 26px;
  border-bottom: 1px solid var(--line);
}

.master-list-head h2 {
  margin-bottom: 10px;
  font-size: clamp(1.75rem, 3vw, 2.35rem);
}

.master-list-head p {
  max-width: 620px;
  margin-bottom: 0;
  color: var(--ink-soft);
}

.master-close {
  position: static;
  align-self: start;
}

.master-list-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 14px clamp(22px, 4vw, 34px);
  border-bottom: 1px solid var(--line);
}

.master-list-actions span {
  color: var(--muted);
  font-family: var(--font-rounded);
  font-size: 0.9rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.master-list-actions span[data-copied="true"] {
  color: var(--ink);
}

.master-color-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-height: 56vh;
  overflow: auto;
  background: var(--line);
  gap: 1px;
}

.master-color-row {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  min-height: 50px;
  padding: 10px 12px;
  color: var(--ink);
  text-align: left;
  background: var(--panel);
  border: 0;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease;
}

.master-color-row:hover,
.master-color-row:focus-visible {
  color: var(--hover-text);
  background: var(--hover-bg);
  outline: none;
}

.master-swatch {
  width: 22px;
  height: 22px;
  background: var(--swatch);
  border: 1px solid color-mix(in srgb, var(--ink) 18%, transparent);
}

.master-color-row:hover .master-swatch,
.master-color-row:focus-visible .master-swatch {
  border-color: color-mix(in srgb, var(--hover-text) 42%, transparent);
}

.master-name {
  min-width: 0;
  overflow: hidden;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.master-hex {
  color: var(--muted);
  font-family: var(--font-rounded);
  font-size: 0.82rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.master-color-row:hover .master-hex,
.master-color-row:focus-visible .master-hex {
  color: color-mix(in srgb, var(--hover-text) 78%, transparent);
}

.master-hex[data-copied="true"] {
  color: var(--ink);
}

.master-color-row:hover .master-hex[data-copied="true"],
.master-color-row:focus-visible .master-hex[data-copied="true"] {
  color: var(--hover-text);
}

@media (max-width: 1040px) {
  .hero-section,
  .intro-grid,
  .download-section,
  .author-section {
    grid-template-columns: 1fr;
  }

  .hero-section {
    min-height: auto;
    gap: 42px;
    padding-top: 58px;
  }

  h1 {
    font-size: 4rem;
  }

  .gallery-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .open-grid,
  .knowledge-layout {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .master-color-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .note-wide,
  .note-tall {
    grid-column: auto;
    grid-row: auto;
  }

  .author-section {
    background: var(--paper);
  }

  .support-panel {
    min-height: 0;
  }
}

@media (max-width: 720px) {
  .site-header {
    position: static;
    align-items: flex-start;
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .site-nav {
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .header-tools {
    justify-content: flex-start;
  }

  .hero-section,
  .intro-band,
  .section-shell,
  .knowledge-section,
  .download-section,
  .open-section,
  .audit-section,
  .author-section {
    padding-right: 20px;
    padding-left: 20px;
  }

  .hero-section {
    padding-top: 42px;
    padding-bottom: 56px;
  }

  h1 {
    font-size: 2.8rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .hero-stats,
  .audit-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats div,
  .hero-stats div + div {
    padding: 18px 0;
    border-left: 0;
  }

  .hero-stats div + div {
    border-top: 1px solid var(--line);
  }

  .mosaic {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    max-height: 300px;
  }

  .toolbar {
    grid-template-columns: 1fr;
  }

  .tool-button {
    width: 100%;
  }

  .search-box {
    width: 100%;
  }

  .hue-filter {
    width: 100%;
  }

  .gallery-grid,
  .knowledge-layout,
  .open-grid {
    grid-template-columns: 1fr;
  }

  .master-list-dialog {
    width: calc(100vw - 24px);
    max-height: 88vh;
  }

  .master-list-head {
    grid-template-columns: 1fr;
  }

  .master-close {
    position: absolute;
    top: 10px;
    right: 10px;
  }

  .master-list-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .master-color-list {
    grid-template-columns: 1fr;
    max-height: 52vh;
  }

  .author-meta {
    grid-template-columns: 1fr;
  }

  .author-meta div,
  .author-meta div + div {
    padding: 14px 0;
    border-left: 0;
  }

  .author-meta div + div {
    border-top: 1px solid var(--line);
  }

  .support-panel {
    min-height: 0;
    padding: 24px 20px;
  }

  .support-qr {
    grid-template-columns: 1fr;
  }

  .support-panel img {
    max-width: 150px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}