:root {
  color-scheme: dark;
  --bg: #0b0f0e;
  --surface: #121715;
  --surface-raised: #171d1a;
  --line: #2b3430;
  --line-strong: #414d47;
  --text: #f3f6f4;
  --muted: #a8b2ad;
  --quiet: #7e8a84;
  --signal: #d4f45e;
  --signal-ink: #10130c;
  --danger: #ff8f7a;
  --paper: #ffffff;
  --qr-paper: #aeb8b0;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.32);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
}

.i18n-pending body {
  visibility: hidden;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  min-height: 100svh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 80% 5%, rgba(212, 244, 94, 0.055), transparent 28rem),
    var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.minimal-page {
  --signal: #b7cb77;
  --qr-paper: #aeb8b0;
  background:
    radial-gradient(circle at 36% 38%, rgba(174, 184, 176, 0.04), transparent 24rem),
    var(--bg);
}

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

button {
  font: inherit;
}

a {
  color: inherit;
}

[hidden] {
  display: none !important;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.85rem;
  color: var(--signal-ink);
  background: var(--signal);
  border-radius: 0.25rem;
  font-size: 0.875rem;
  font-weight: 700;
  transform: translateY(-180%);
}

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

:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 4px;
}

.page-shell {
  width: min(100% - 3rem, 72rem);
  min-height: 100vh;
  min-height: 100svh;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
}

.site-header {
  min-height: 6.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  color: var(--text);
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 760;
  letter-spacing: 0.2em;
}

.wordmark-mark {
  width: 0.62rem;
  height: 0.62rem;
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(212, 244, 94, 0.1);
  transform: rotate(45deg);
}

.minimal-shell .site-header {
  min-height: 0;
  padding-top: clamp(2rem, 5vh, 3.5rem);
  justify-content: flex-start;
  border-bottom: 0;
}

.page-shell.minimal-shell {
  width: min(100% - 3rem, 48rem);
}

.minimal-main {
  flex: 1;
  display: grid;
  place-items: start center;
  padding: clamp(3rem, 8vh, 5.25rem) 0 4rem;
}

.minimal-asset {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(18rem, 23.125rem) minmax(15rem, 1fr);
  align-items: end;
  justify-content: center;
  gap: clamp(2.5rem, 6vw, 4.5rem);
}

.minimal-asset .qr-stage {
  --bracket-edge: -1.35rem;
  --bracket-stroke: 4px;
  --bracket-color: #ff9a3d;
  --arc-color: #4aa8ff;
  --scan-color: #ffffff;
  --fx-left: -1.7rem;
  --fx-extra: 3.4rem;
  position: relative;
  isolation: isolate;
  overflow: visible;
  padding: 0;
  background: #050806;
  border: 0;
  box-shadow:
    0 0 0 0.55rem var(--surface),
    0 0 0 calc(0.55rem + 1px) var(--line),
    0 0 3rem rgba(174, 184, 176, 0.075),
    0 30px 76px rgba(0, 0, 0, 0.38);
}

.qr-reveal-window {
  position: absolute;
  z-index: 0;
  inset: 0;
  overflow: hidden;
  isolation: isolate;
  background: #050806;
  clip-path: inset(0 50% 0 50%);
  pointer-events: none;
}

.minimal-asset .qr-stage.is-ready .qr-reveal-window {
  clip-path: inset(0 50% 0 50%);
  will-change: clip-path;
}

.minimal-asset .qr-image-base {
  position: absolute;
  z-index: 0;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0.18;
  filter: grayscale(1) invert(1) blur(6px) brightness(0.72);
  mix-blend-mode: screen;
  image-rendering: pixelated;
}

.qr-resolved-layer {
  position: absolute;
  z-index: 2;
  inset: 0;
  overflow: hidden;
  isolation: isolate;
  background: var(--qr-paper);
  clip-path: inset(0 0 100% 0);
  pointer-events: none;
}

.minimal-asset .qr-image-resolved {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  mix-blend-mode: multiply;
  image-rendering: pixelated;
}

.qr-signal-field {
  position: absolute;
  z-index: -1;
  inset: -4.8rem;
  opacity: 0;
  border-radius: 50%;
  background:
    repeating-conic-gradient(
      from 7deg,
      rgba(74, 168, 255, 0.1) 0deg,
      rgba(74, 168, 255, 0.1) 0.32deg,
      transparent 0.42deg,
      transparent 11.25deg
    ),
    repeating-radial-gradient(
      ellipse at center,
      transparent 0,
      transparent 1.28rem,
      rgba(215, 241, 255, 0.11) 1.34rem,
      transparent 1.42rem,
      transparent 2.2rem
    );
  filter:
    blur(0.12rem)
    drop-shadow(0 0 0.8rem rgba(74, 168, 255, 0.22));
  mix-blend-mode: screen;
  pointer-events: none;
  transform: scale(0.86) rotate(-1.8deg);
  -webkit-mask-image: radial-gradient(
    ellipse at center,
    transparent 0,
    transparent 37%,
    #000 45%,
    #000 68%,
    transparent 80%
  );
  mask-image: radial-gradient(
    ellipse at center,
    transparent 0,
    transparent 37%,
    #000 45%,
    #000 68%,
    transparent 80%
  );
}

.qr-signal-noise {
  position: absolute;
  z-index: 1;
  inset: 0;
  opacity: 0;
  background:
    linear-gradient(
      90deg,
      rgba(2, 8, 6, 0.72) 0 5%,
      rgba(5, 14, 10, 0.28) 5% 13%,
      rgba(2, 8, 6, 0.62) 13% 19%,
      rgba(8, 20, 15, 0.18) 19% 27%,
      rgba(2, 8, 6, 0.7) 27% 31%,
      rgba(5, 14, 10, 0.26) 31% 44%,
      rgba(2, 8, 6, 0.58) 44% 53%,
      rgba(8, 20, 15, 0.2) 53% 61%,
      rgba(2, 8, 6, 0.68) 61% 66%,
      rgba(5, 14, 10, 0.26) 66% 79%,
      rgba(2, 8, 6, 0.58) 79% 88%,
      rgba(8, 20, 15, 0.18) 88% 94%,
      rgba(2, 8, 6, 0.62) 94% 100%
    ),
    linear-gradient(
      0deg,
      rgba(3, 9, 7, 0.48) 0 7%,
      rgba(6, 16, 12, 0.14) 7% 18%,
      rgba(3, 9, 7, 0.56) 18% 24%,
      rgba(6, 16, 12, 0.2) 24% 39%,
      rgba(3, 9, 7, 0.5) 39% 48%,
      rgba(6, 16, 12, 0.12) 48% 61%,
      rgba(3, 9, 7, 0.54) 61% 68%,
      rgba(6, 16, 12, 0.18) 68% 82%,
      rgba(3, 9, 7, 0.46) 82% 91%,
      rgba(6, 16, 12, 0.16) 91% 100%
    ),
    repeating-linear-gradient(
      91deg,
      transparent 0,
      transparent 2.1rem,
      rgba(74, 168, 255, 0.14) 2.15rem,
      transparent 2.21rem,
      transparent 4.8rem
    ),
    repeating-linear-gradient(
      0deg,
      rgba(215, 241, 255, 0.045) 0,
      rgba(215, 241, 255, 0.045) 1px,
      transparent 1px,
      transparent 4px
    ),
    linear-gradient(rgba(4, 10, 7, 0.38), rgba(4, 10, 7, 0.38));
  mix-blend-mode: multiply;
  pointer-events: none;
}

.qr-reveal-edge {
  position: absolute;
  z-index: 5;
  top: 0;
  bottom: 0;
  left: 0;
  width: 2px;
  opacity: 0;
  background: rgba(226, 247, 255, 0.96);
  box-shadow:
    0 0 0.24rem rgba(226, 247, 255, 0.92),
    0 0 0.72rem rgba(74, 168, 255, 0.78),
    0 0 1.35rem rgba(74, 168, 255, 0.42);
  mix-blend-mode: screen;
  pointer-events: none;
}

.qr-electric-arc {
  position: absolute;
  z-index: 3;
  top: 30%;
  left: var(--fx-left);
  width: calc(100% + var(--fx-extra));
  height: 40%;
  opacity: 0;
  overflow: visible;
  pointer-events: none;
}

.qr-lock-impact {
  position: absolute;
  z-index: 4;
  inset: -0.72rem;
  opacity: 0;
  border: 1px solid rgba(235, 248, 255, 0.82);
  box-shadow:
    inset 0 0 1.2rem rgba(215, 241, 255, 0.12),
    0 0 0.7rem rgba(215, 241, 255, 0.34),
    0 0 1.7rem rgba(255, 126, 32, 0.3);
  pointer-events: none;
  transform: scale(0.985);
}

.qr-lock-bracket {
  position: absolute;
  z-index: 6;
  top: -0.85rem;
  bottom: -0.85rem;
  width: 0.9rem;
  opacity: 0;
  pointer-events: none;
  filter:
    drop-shadow(0 0 0.16rem rgba(255, 205, 145, 0.92))
    drop-shadow(0 0 0.56rem rgba(255, 126, 32, 0.56));
}

.qr-lock-bracket-left {
  left: var(--bracket-edge);
  border-top: var(--bracket-stroke) solid var(--bracket-color);
  border-bottom: var(--bracket-stroke) solid var(--bracket-color);
  border-left: var(--bracket-stroke) solid var(--bracket-color);
}

.qr-lock-bracket-right {
  right: var(--bracket-edge);
  border-top: var(--bracket-stroke) solid var(--bracket-color);
  border-right: var(--bracket-stroke) solid var(--bracket-color);
  border-bottom: var(--bracket-stroke) solid var(--bracket-color);
}

.qr-scan-line {
  position: absolute;
  z-index: 5;
  top: 2%;
  left: 2%;
  right: 2%;
  height: 96%;
  opacity: 0;
  pointer-events: none;
  mix-blend-mode: screen;
  transform-origin: 50% 0;
}

.minimal-asset .qr-stage.is-ready .qr-image-base {
  will-change: filter, opacity;
}

.minimal-asset .qr-stage.is-ready .qr-reveal-edge {
  will-change: opacity, transform;
}

.minimal-asset .qr-stage.is-ready .qr-resolved-layer {
  will-change: clip-path;
}

.minimal-asset .qr-stage.is-ready .qr-signal-field {
  will-change: opacity, transform;
}

.minimal-asset .qr-stage.is-ready .qr-signal-noise {
  will-change: opacity, background-position;
}

.minimal-asset .qr-stage.is-ready .qr-electric-arc {
  will-change: opacity;
}

.minimal-asset .qr-stage.is-ready .qr-lock-impact {
  will-change: opacity, transform;
}

.minimal-asset .qr-stage.is-ready .qr-lock-bracket {
  will-change: transform, filter, opacity;
}

.minimal-asset .qr-stage.is-ready .qr-scan-line {
  will-change: opacity, transform;
}

.qr-scan-line::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.72) 10%,
    var(--scan-color) 18%,
    var(--scan-color) 82%,
    rgba(255, 255, 255, 0.72) 90%,
    transparent
  );
  box-shadow:
    0 0 0.28rem rgba(255, 255, 255, 0.94),
    0 0 0.58rem rgba(255, 255, 255, 0.48);
}

.qr-scan-line::after {
  content: "";
  position: absolute;
  top: -2.55rem;
  right: 2%;
  left: 2%;
  height: 2.65rem;
  opacity: 1;
  background: linear-gradient(
    to bottom,
    transparent,
    rgba(255, 255, 255, 0.035) 44%,
    rgba(255, 255, 255, 0.1) 76%,
    rgba(255, 255, 255, 0.22)
  );
  filter: blur(0.14rem);
}

.minimal-asset .qr-stage.is-settled .qr-image-base {
  opacity: 0;
  filter: grayscale(1) invert(1);
}

.minimal-asset .qr-stage.is-settled .qr-reveal-window {
  clip-path: inset(0);
}

.minimal-asset .qr-stage.is-settled .qr-resolved-layer {
  clip-path: inset(0);
}

.minimal-asset .qr-stage.is-settled .qr-lock-bracket {
  opacity: 0.78;
  transform: none;
  filter:
    drop-shadow(0 0 0.12rem rgba(255, 205, 145, 0.78))
    drop-shadow(0 0 0.42rem rgba(255, 126, 32, 0.4));
}

.minimal-asset .qr-stage.is-settled .qr-electric-arc,
.minimal-asset .qr-stage.is-settled .qr-signal-field,
.minimal-asset .qr-stage.is-settled .qr-signal-noise,
.minimal-asset .qr-stage.is-settled .qr-reveal-edge,
.minimal-asset .qr-stage.is-settled .qr-lock-impact,
.minimal-asset .qr-stage.is-settled .qr-scan-line {
  display: none;
}

.minimal-details {
  min-width: 0;
  padding-bottom: 0.2rem;
}

.minimal-details .hash-block,
.minimal-details .minimal-download {
  opacity: 1;
  visibility: visible;
  transform: translate3d(0, 0, 0);
  transition:
    opacity 340ms ease,
    transform 340ms cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0s linear;
}

.minimal-details.is-pending .hash-block,
.minimal-details.is-pending .minimal-download {
  opacity: 0;
  visibility: hidden;
  transform: translate3d(0, 0.45rem, 0);
  pointer-events: none;
}

.minimal-details.is-revealed .minimal-download {
  transition-delay: 70ms;
}

.hash-block {
  display: block;
  margin: 0;
  padding: 1rem 0 1.1rem;
  background: transparent;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.hash-block dt {
  margin-bottom: 0.7rem;
  color: var(--quiet);
  font-size: 0.62rem;
  font-weight: 650;
  letter-spacing: 0.12em;
}

.hash-block dd {
  min-width: 0;
  margin: 0;
  color: #c5cec9;
  font-family: ui-monospace, "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.72rem;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

.primary-action.minimal-download {
  width: 100%;
  margin-top: 0.75rem;
  color: var(--signal);
  background: transparent;
  border-color: rgba(183, 203, 119, 0.48);
}

.primary-action.minimal-download:hover {
  color: var(--signal-ink);
  background: var(--signal);
}

.header-note,
.section-index,
.eyebrow,
.site-footer {
  font-size: 0.68rem;
  font-weight: 650;
  letter-spacing: 0.16em;
}

.header-note,
.section-index {
  color: var(--quiet);
}

.landing-layout {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(16rem, 0.8fr) minmax(24rem, 1.2fr);
  align-items: center;
  gap: clamp(3rem, 8vw, 8rem);
  padding-block: clamp(3.5rem, 8vw, 7rem);
}

.intro {
  align-self: center;
}

.eyebrow {
  margin: 0 0 1.2rem;
  color: var(--signal);
}

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

h1 {
  max-width: 10ch;
  margin-bottom: 1.6rem;
  font-size: clamp(3rem, 7vw, 6.6rem);
  font-weight: 660;
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.lead {
  max-width: 30rem;
  margin-bottom: 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  line-height: 1.75;
}

.boundary {
  max-width: 31rem;
  margin-top: clamp(2.5rem, 6vw, 5rem);
  border-top: 1px solid var(--line);
}

.boundary summary {
  padding: 1.1rem 1.8rem 1.1rem 0;
  position: relative;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.84rem;
  list-style: none;
}

.boundary summary::-webkit-details-marker {
  display: none;
}

.boundary summary::after {
  content: "+";
  position: absolute;
  right: 0.15rem;
  color: var(--signal);
  font-family: ui-monospace, "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 1rem;
  line-height: 1;
}

.boundary[open] summary::after {
  content: "−";
}

.boundary-copy {
  padding: 0.2rem 0 0.6rem;
  color: var(--quiet);
  font-size: 0.78rem;
  line-height: 1.7;
}

.boundary-copy p {
  margin-bottom: 0.7rem;
}

.asset-card {
  width: 100%;
  max-width: 38rem;
  justify-self: end;
  padding: clamp(1.15rem, 3vw, 1.8rem);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.asset-heading {
  min-height: 3.7rem;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.section-index {
  margin-bottom: 0.4rem;
}

.asset-heading h2 {
  margin-bottom: 0;
  font-family: ui-monospace, "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.92rem;
  font-weight: 540;
  letter-spacing: 0.015em;
}

.issue-indicator {
  width: 0.55rem;
  height: 0.55rem;
  margin-top: 0.2rem;
  background: var(--signal);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(212, 244, 94, 0.08);
}

.qr-stage {
  width: 100%;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: clamp(1rem, 4vw, 2rem);
  background: var(--paper);
}

.qr-stage img {
  width: 100%;
  height: auto;
  display: block;
}

.asset-status {
  min-height: 1.45rem;
  margin: 1rem 0 0;
  color: var(--quiet);
  font-size: 0.77rem;
  line-height: 1.5;
}

.asset-status[data-kind="success"] {
  color: var(--muted);
}

.asset-status[data-kind="error"] {
  color: var(--danger);
}

.file-meta {
  margin: 1.25rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.file-meta > div {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr);
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
}

.file-meta dt {
  color: var(--quiet);
  font-size: 0.62rem;
  font-weight: 650;
  letter-spacing: 0.12em;
}

.file-meta dd {
  min-width: 0;
  margin: 0;
  color: var(--muted);
  font-family: ui-monospace, "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.69rem;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.asset-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
  margin-top: 1.1rem;
}

.primary-action,
.secondary-action {
  min-height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1rem;
  border: 1px solid transparent;
  border-radius: 0.16rem;
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 690;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
}

.primary-action {
  color: var(--signal-ink);
  background: var(--signal);
}

.primary-action:hover {
  background: #e0ff73;
}

.secondary-action {
  color: var(--muted);
  background: transparent;
  border-color: var(--line-strong);
}

.secondary-action:hover:not(:disabled) {
  color: var(--text);
  border-color: var(--muted);
}

.secondary-action:disabled,
.primary-action:disabled {
  cursor: wait;
  opacity: 0.48;
}

.action-note {
  margin: 0.75rem 0 0;
  color: var(--quiet);
  font-size: 0.68rem;
  line-height: 1.55;
}

.site-footer {
  min-height: 5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  color: var(--quiet);
  border-top: 1px solid var(--line);
}

.gate-shell {
  width: min(100% - 3rem, 58rem);
}

.gate-main {
  flex: 1;
  display: grid;
  align-content: center;
  grid-template-columns: minmax(14rem, 0.8fr) minmax(20rem, 1.2fr);
  gap: clamp(2.5rem, 8vw, 6.5rem);
  padding-block: clamp(4rem, 10vw, 8rem);
}

.gate-intro h1 {
  max-width: 8ch;
  font-size: clamp(2.8rem, 6vw, 5rem);
}

.claim-card {
  align-self: center;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1.2rem 1rem;
  padding: clamp(1.35rem, 4vw, 2.25rem);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.claim-status-mark {
  width: 2.4rem;
  height: 2.4rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
}

.claim-status-mark span {
  width: 0.55rem;
  height: 0.55rem;
  background: var(--signal);
  border-radius: 50%;
}

.claim-status-mark[data-state="working"] span {
  background: var(--muted);
}

.claim-status-mark[data-state="success"] {
  border-color: rgba(212, 244, 94, 0.55);
}

.claim-status-mark[data-state="error"] span,
.claim-status-mark[data-state="closed"] span,
.claim-status-mark[data-state="claimed"] span,
.claim-status-mark[data-state="invalid"] span {
  background: var(--danger);
}

.claim-copy h2 {
  margin-bottom: 0.65rem;
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  font-weight: 620;
  letter-spacing: -0.025em;
}

.claim-copy > p:last-child {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.7;
}

.claim-button,
.text-action {
  grid-column: 2;
}

.claim-button {
  width: 100%;
  margin-top: 0.4rem;
}

.text-action {
  color: var(--muted);
  font-size: 0.78rem;
  text-underline-offset: 0.22em;
}

.gate-boundary {
  grid-column: 2;
  margin-top: 0;
}

@media (max-width: 800px) {
  .minimal-asset {
    grid-template-columns: minmax(0, 20.8125rem);
    justify-items: stretch;
    gap: 1.75rem;
  }

  .qr-signal-field {
    inset: -3.6rem;
  }

  .minimal-details {
    padding-bottom: 0;
  }

  .landing-layout,
  .gate-main {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .landing-layout {
    gap: 3rem;
  }

  .asset-card {
    max-width: 34rem;
    justify-self: start;
  }

  .boundary {
    margin-top: 2.5rem;
  }

  .gate-main {
    gap: 2.75rem;
  }

  .gate-intro h1 {
    max-width: none;
  }

  .claim-card,
  .gate-boundary {
    max-width: 34rem;
  }

  .gate-boundary {
    grid-column: 1;
  }
}

@media (max-width: 520px) {
  .page-shell,
  .gate-shell {
    width: min(100% - 2rem, 72rem);
  }

  .site-header {
    min-height: 5rem;
  }

  .minimal-shell .site-header {
    min-height: 0;
  }

  .minimal-main {
    padding-block: clamp(2.75rem, 7vh, 4rem) 3rem;
  }

  .page-shell.minimal-shell {
    width: min(100% - 2.5rem, 20.8125rem);
  }

  .minimal-asset {
    grid-template-columns: minmax(0, min(100%, 20.8125rem));
    gap: 1.5rem;
  }

  .minimal-asset .qr-stage {
    --bracket-edge: -1rem;
    --bracket-stroke: 3px;
    --fx-left: -1.3rem;
    --fx-extra: 2.6rem;
    padding: 0;
  }

  .hash-block {
    padding: 1rem 0;
  }

  .header-note {
    font-size: 0.58rem;
    letter-spacing: 0.11em;
  }

  .landing-layout,
  .gate-main {
    padding-block: 3rem;
  }

  h1 {
    font-size: clamp(2.85rem, 15vw, 4rem);
  }

  .lead br {
    display: none;
  }

  .asset-card {
    margin-inline: -0.15rem;
    padding: 0.9rem;
  }

  .qr-stage {
    padding: 1rem;
  }

  .asset-actions {
    grid-template-columns: 1fr;
  }

  .site-footer {
    min-height: 5.5rem;
    align-items: flex-start;
    justify-content: center;
    flex-direction: column;
    gap: 0.35rem;
  }

  .claim-card {
    grid-template-columns: 1fr;
  }

  .claim-status-mark {
    width: 2.15rem;
    height: 2.15rem;
  }

  .claim-button,
  .text-action {
    grid-column: 1;
  }
}

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

  .minimal-details .hash-block,
  .minimal-details .minimal-download {
    transition: none;
  }

  .minimal-asset .qr-stage.is-ready .qr-reveal-window {
    clip-path: inset(0);
  }

  .minimal-asset .qr-stage.is-ready .qr-image-base {
    opacity: 0;
    filter: grayscale(1) invert(1);
  }

  .minimal-asset .qr-stage.is-ready .qr-resolved-layer {
    clip-path: inset(0);
  }

  .minimal-asset .qr-stage.is-ready .qr-lock-bracket {
    opacity: 0.78;
    transform: none;
  }

  .minimal-asset .qr-stage.is-ready .qr-electric-arc,
  .minimal-asset .qr-stage.is-ready .qr-signal-field,
  .minimal-asset .qr-stage.is-ready .qr-signal-noise,
  .minimal-asset .qr-stage.is-ready .qr-reveal-edge,
  .minimal-asset .qr-stage.is-ready .qr-lock-impact,
  .minimal-asset .qr-stage.is-ready .qr-scan-line {
    display: none;
  }
}

@media (forced-colors: active) {
  .minimal-asset .qr-image-resolved {
    mix-blend-mode: normal;
  }

  .qr-electric-arc,
  .qr-signal-field,
  .qr-signal-noise,
  .qr-reveal-edge,
  .qr-lock-impact,
  .qr-scan-line {
    display: none;
  }
}