:root {
  color-scheme: light;
  --canvas: #f5f5f7;
  --surface: #ffffff;
  --surface-raised: #fbfbfd;
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --muted-strong: #515154;
  --line: #d2d2d7;
  --line-strong: #a1a1a6;
  --accent: #2f5f97;
  --accent-ink: #17416f;
  --accent-wash: #e7eff9;
  --button-primary: #2f5f97;
  --button-primary-hover: #214c7d;
  --success: #2f7d4e;
  --warning: #9b6512;
  --danger: #b23a32;
  --header: rgba(255, 255, 255, 0.82);
  --hero-overlay: rgba(8, 15, 26, 0.80);
  --focus: #2f75be;
  --shadow: 0 12px 36px rgba(29, 29, 31, 0.08);
  --radius: 8px;
  --content-width: 1200px;
  --narrow-width: 800px;
  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --canvas: #000000;
  --surface: #1d1d1f;
  --surface-raised: #262629;
  --ink: #f5f5f7;
  --muted: #a1a1a6;
  --muted-strong: #d2d2d7;
  --line: #424245;
  --line-strong: #6e6e73;
  --accent: #8ab4e5;
  --accent-ink: #c5ddf8;
  --accent-wash: #172b42;
  --button-primary: #326ba7;
  --button-primary-hover: #285989;
  --success: #67bd85;
  --warning: #e8ae58;
  --danger: #f09088;
  --header: rgba(0, 0, 0, 0.82);
  --hero-overlay: rgba(0, 0, 0, 0.84);
  --focus: #8ab4e5;
  --shadow: 0 14px 40px rgba(0, 0, 0, 0.36);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 0;
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.55;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
}

button,
input,
select,
textarea {
  font: inherit;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
}

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

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

h1,
h2,
h3 {
  color: var(--ink);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.12;
}

h1 {
  margin-bottom: 20px;
  font-size: 72px;
}

h2 {
  margin-bottom: 14px;
  font-size: 44px;
}

h3 {
  margin-bottom: 8px;
  font-size: 20px;
}

p {
  color: var(--muted-strong);
}

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: 8px;
  left: 8px;
  transform: translateY(-150%);
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  color: var(--ink);
}

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

.content-width {
  width: min(calc(100% - 48px), var(--content-width));
  margin: 0 auto;
}

.narrow-content {
  max-width: var(--narrow-width);
  margin-left: max(24px, calc((100vw - var(--content-width)) / 2));
}

/* The Images-page title needs the full desktop content width; its supporting
   copy deliberately remains at the narrower, more readable measure. */
.images-intro-content {
  max-width: var(--content-width);
}

.images-intro-content h1 {
  font-size: 60px;
  white-space: nowrap;
}

.images-intro-content p:last-child {
  max-width: var(--narrow-width);
}

.site-header {
  position: sticky;
  z-index: 40;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: var(--header);
  backdrop-filter: blur(18px);
}

.nav-wrap {
  display: flex;
  min-height: 64px;
  align-items: center;
  gap: 22px;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 17px;
  font-weight: 700;
}

.brand img {
  width: 30px;
  height: 30px;
  border-radius: 7px;
}

.site-nav {
  display: flex;
  flex: 1 1 auto;
  min-width: 0;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  padding: 0 10px;
  border-bottom: 2px solid transparent;
  color: var(--muted-strong);
  font-size: 14px;
  font-weight: 600;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  border-bottom-color: var(--accent);
  color: var(--ink);
}

.nav-controls {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
}

.icon-button.nav-menu-toggle {
  display: none;
}

.language-switch {
  display: inline-flex;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 7px;
}

.language-switch button {
  min-width: 45px;
  min-height: 36px;
  padding: 0 10px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.language-switch button + button {
  border-left: 1px solid var(--line);
}

.language-switch button[aria-pressed="true"] {
  background: var(--accent-wash);
  color: var(--accent-ink);
}

.icon-button {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface);
  color: var(--ink);
}

.icon-button:hover {
  border-color: var(--line-strong);
  background: var(--surface-raised);
}

.icon-button svg,
.button svg,
.feature-card > svg,
.hero-scroll svg {
  width: 19px;
  height: 19px;
  stroke-width: 1.9;
}

.hero {
  position: relative;
  display: grid;
  min-height: min(660px, calc(100svh - 96px));
  overflow: hidden;
  align-items: center;
  background-color: #101722;
  background-image: url("../media/1.png");
  background-position: center;
  background-size: cover;
  color: #ffffff;
}

.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background: var(--hero-overlay);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
  padding: 84px 0 100px;
}

.hero-content > * {
  animation: hero-content-enter 620ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero-content h1 {
  animation-delay: 70ms;
}

.hero-content .hero-copy {
  animation-delay: 130ms;
}

.hero-content .hero-actions {
  animation-delay: 190ms;
}

.hero-content .hero-release {
  animation-delay: 250ms;
}

.hero-mobile-preview {
  display: none;
}

.hero h1,
.hero p {
  color: #ffffff;
  text-shadow: 0 2px 5px rgba(0, 0, 0, 0.42);
}

.eyebrow {
  margin-bottom: 12px;
  color: currentColor;
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0;
  text-transform: uppercase;
}

.eyebrow-accent {
  color: var(--accent-ink);
}

.hero-copy {
  max-width: 610px;
  margin-bottom: 26px;
  font-size: 20px;
  line-height: 1.5;
}

.hero-actions,
.source-actions,
.release-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 17px;
  border: 1px solid transparent;
  border-radius: 7px;
  font-size: 15px;
  font-weight: 700;
  transition: background-color 180ms ease, border-color 180ms ease, box-shadow 180ms ease, color 180ms ease, transform 180ms ease;
}

.button-primary {
  background: var(--button-primary);
  color: #ffffff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.28), 0 8px 20px rgba(20, 55, 90, 0.24);
}

.button-primary:hover {
  background: var(--button-primary-hover);
}

.button-quiet {
  border-color: rgba(255, 255, 255, 0.72);
  background: rgba(0, 0, 0, 0.14);
  color: #ffffff;
}

.button-quiet:hover {
  background: rgba(0, 0, 0, 0.34);
}

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

.button-secondary:hover {
  background: var(--surface-raised);
}

.button:disabled,
.button.disabled {
  border-color: var(--line);
  background: var(--surface-raised);
  color: var(--muted);
}

.hero-release {
  display: flex;
  width: fit-content;
  margin-top: 28px;
  gap: 10px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

.hero-release strong {
  color: #ffffff;
}

.hero-scroll {
  position: absolute;
  z-index: 1;
  right: max(24px, calc((100vw - var(--content-width)) / 2));
  bottom: 25px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #ffffff;
  font-size: 13px;
  font-weight: 650;
}

.section {
  padding: 96px 0;
}

.section-canvas {
  background: var(--canvas);
}

.section-surface {
  background: var(--surface);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 38px;
}

.section-heading p:last-child {
  max-width: 640px;
  margin-bottom: 0;
  font-size: 17px;
}

.section-heading-row {
  display: flex;
  max-width: none;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
}

.section-heading-row > p {
  max-width: 340px;
  margin-bottom: 8px;
}

.compact-heading {
  margin-bottom: 26px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.feature-card {
  min-height: 216px;
  padding: 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
  transition: box-shadow 220ms ease, transform 220ms ease;
}

.feature-card > svg {
  margin-bottom: 28px;
  color: var(--accent);
}

.feature-card p {
  margin-bottom: 0;
}

.safety-band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.safety-layout,
.download-band-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 68px;
  align-items: center;
}

.safety-layout h2,
.download-band-layout h2 {
  margin-bottom: 0;
  font-size: 38px;
}

.safety-layout > p {
  max-width: 570px;
  margin: 0;
  font-size: 18px;
}

.demo-section {
  overflow: hidden;
}

.demo-carousel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: var(--shadow);
  transition: box-shadow 220ms ease, transform 220ms ease;
}

.carousel-stage {
  position: relative;
  min-height: 0;
  overflow: hidden;
  background: #ececef;
  border-bottom: 1px solid var(--line);
}

:root[data-theme="dark"] .carousel-stage {
  background: #101011;
}

.carousel-slide {
  display: none;
}

.carousel-slide.is-active {
  display: block;
  animation: carousel-enter 480ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.carousel-slide img {
  width: 100%;
  aspect-ratio: 1920 / 1008;
  object-fit: contain;
}

.carousel-footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  padding: 18px 20px;
}

.carousel-copy h3 {
  margin-bottom: 3px;
  font-size: 18px;
}

.carousel-copy p {
  margin-bottom: 0;
  font-size: 14px;
}

.carousel-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}

.carousel-position {
  min-width: 50px;
  color: var(--muted);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  text-align: center;
}

.carousel-dots {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding: 0 20px 20px;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--line-strong);
  transition: background-color 180ms ease, transform 180ms ease;
}

.carousel-dot[aria-current="true"] {
  background: var(--accent);
  transform: scale(1.3);
}

@media (hover: hover) {
  .button:not(:disabled):hover {
    transform: translateY(-1px);
  }

  .feature-card:hover {
    position: relative;
    z-index: 1;
    box-shadow: 0 14px 28px rgba(29, 29, 31, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.62);
    transform: translateY(-3px);
  }

  :root[data-theme="dark"] .feature-card:hover {
    box-shadow: 0 16px 30px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  }

  .demo-carousel:hover {
    box-shadow: 0 20px 44px rgba(29, 29, 31, 0.14), inset 0 1px 0 rgba(255, 255, 255, 0.36);
    transform: translateY(-2px);
  }

  :root[data-theme="dark"] .demo-carousel:hover {
    box-shadow: 0 22px 44px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  }
}

@keyframes hero-content-enter {
  from {
    opacity: 0;
    transform: translateY(16px);
  }

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

@keyframes hero-preview-enter {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.985);
  }

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

@keyframes carousel-enter {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.992);
  }

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

@keyframes mobile-nav-enter {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }

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

.download-band-layout {
  grid-template-columns: minmax(0, 1fr) auto;
}

.page-intro {
  padding: 112px 0 78px;
  border-bottom: 1px solid var(--line);
}

.page-intro p:last-child {
  max-width: 690px;
  margin-bottom: 0;
  font-size: 19px;
}

.policy-content {
  max-width: var(--narrow-width);
}

.policy-section {
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.policy-section:first-child {
  padding-top: 0;
}

.policy-section:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.policy-section h2 {
  margin-bottom: 12px;
  font-size: 28px;
}

.policy-section p:last-child {
  margin-bottom: 0;
}

.policy-contact a {
  color: var(--accent-ink);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.release-panel,
.release-record {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.release-panel {
  padding: 30px;
}

.release-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 22px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.release-heading h3 {
  margin-bottom: 8px;
  font-size: 28px;
}

.release-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.release-notes {
  padding-top: 24px;
}

.markdown-body {
  color: var(--muted-strong);
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
  margin-top: 26px;
  color: var(--ink);
  font-size: 18px;
}

.markdown-body h1:first-child,
.markdown-body h2:first-child,
.markdown-body h3:first-child {
  margin-top: 0;
}

.markdown-body p,
.markdown-body li {
  color: var(--muted-strong);
}

.markdown-body code {
  padding: 2px 5px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--surface-raised);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.9em;
}

.markdown-body pre {
  overflow: auto;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface-raised);
}

.markdown-body pre code {
  padding: 0;
  border: 0;
}

.markdown-body a {
  color: var(--accent-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.download-sources {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 24px;
}

.source-option {
  display: flex;
  min-height: 92px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface-raised);
}

.source-option h4 {
  margin: 0 0 3px;
  color: var(--ink);
  font-size: 15px;
}

.source-option p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.source-option-single {
  justify-content: center;
}

.release-history {
  display: grid;
  gap: 10px;
}

.release-record {
  overflow: hidden;
}

.release-record summary {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 15px 20px;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

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

.release-record summary::after {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  content: "+";
  color: var(--accent);
  font-size: 22px;
  line-height: 16px;
  text-align: center;
}

.release-record[open] summary::after {
  content: "−";
}

.release-record-content {
  padding: 0 20px 24px;
  border-top: 1px solid var(--line);
}

.release-record-content .release-actions {
  margin-top: 20px;
}

.release-loading,
.release-error,
.empty-state {
  display: flex;
  min-height: 160px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--muted);
  text-align: center;
}

.loading-ring {
  width: 18px;
  height: 18px;
  border: 2px solid var(--line);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 700ms linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.catalog-toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 28px;
}

.catalog-toolbar h2 {
  margin-bottom: 0;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 7px;
}

.filter-button {
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface);
  color: var(--muted-strong);
  font-size: 13px;
  font-weight: 700;
}

.filter-button[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent-wash);
  color: var(--accent-ink);
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.image-card {
  display: flex;
  min-height: 276px;
  flex-direction: column;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.image-card-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 22px;
}

.source-label,
.level-label {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 7px;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--muted-strong);
  font-size: 11px;
  font-weight: 750;
}

.level-label[data-level="expert"] {
  border-color: rgba(178, 58, 50, 0.48);
  color: var(--danger);
}

.level-label[data-level="advanced"] {
  border-color: rgba(155, 101, 18, 0.45);
  color: var(--warning);
}

.level-label[data-level="beginner"] {
  border-color: rgba(47, 125, 78, 0.45);
  color: var(--success);
}

.image-card h3 {
  font-size: 22px;
}

.image-card p {
  margin-bottom: 18px;
}

.image-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 13px;
}

.image-card .button {
  width: 100%;
  margin-top: auto;
}

.image-dialog {
  width: min(720px, calc(100vw - 32px));
  max-height: min(760px, calc(100svh - 32px));
  padding: 0;
  overflow: auto;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  box-shadow: var(--shadow);
}

.image-dialog::backdrop {
  background: rgba(0, 0, 0, 0.56);
}

.dialog-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 24px 18px;
  border-bottom: 1px solid var(--line);
}

.dialog-head h2 {
  margin: 0;
  font-size: 30px;
}

.dialog-head .eyebrow {
  margin-bottom: 6px;
}

.dialog-content {
  padding: 24px;
}

.dialog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 22px 0;
  border: 1px solid var(--line);
  background: var(--line);
}

.dialog-grid > div {
  min-height: 84px;
  padding: 12px;
  background: var(--surface);
}

.dialog-grid > .checksum-fact {
  min-height: 0;
  grid-column: 1 / -1;
}

.dialog-grid dt {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 12px;
}

.dialog-grid dd {
  margin: 0;
  color: var(--ink);
  font-size: 14px;
  font-weight: 650;
  overflow-wrap: anywhere;
}

.notice {
  margin: 22px 0;
  padding: 14px;
  border-left: 3px solid var(--warning);
  background: var(--surface-raised);
  color: var(--muted-strong);
  font-size: 14px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--canvas);
}

.footer-wrap {
  display: flex;
  min-height: 100px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-wrap p {
  margin: 0;
  font-size: 13px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.footer-links a {
  color: var(--muted-strong);
  font-size: 13px;
  font-weight: 650;
}

.footer-links a:hover {
  color: var(--accent-ink);
}

.not-found {
  display: grid;
  min-height: 100svh;
  align-content: center;
  justify-items: start;
}

@media (max-width: 920px) {
  h1 {
    font-size: 56px;
  }

  .images-intro-content h1 {
    font-size: 50px;
  }

  h2 {
    font-size: 38px;
  }

  .nav-wrap {
    gap: 12px;
  }

  .site-nav {
    overflow-x: auto;
    scrollbar-width: none;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .site-nav a {
    padding: 0 8px;
  }

  .feature-grid,
  .image-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .feature-grid .feature-card:last-child {
    grid-column: 1 / -1;
  }

  .safety-layout,
  .download-band-layout {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .section-heading-row,
  .catalog-toolbar {
    align-items: start;
    flex-direction: column;
  }

  .filter-group {
    justify-content: flex-start;
  }
}

@media (max-width: 760px) {
  .images-intro-content h1 {
    font-size: 44px;
    white-space: normal;
  }
}

@media (max-width: 680px) {
  h1 {
    font-size: 42px;
  }

  .images-intro-content h1 {
    font-size: 42px;
  }

  h2,
  .safety-layout h2,
  .download-band-layout h2 {
    font-size: 30px;
  }

  .content-width {
    width: min(calc(100% - 32px), var(--content-width));
  }

  .narrow-content {
    margin-left: auto;
  }

  .nav-wrap {
    position: relative;
    min-height: 62px;
    gap: 8px;
  }

  .brand span {
    display: none;
  }

  .icon-button.nav-menu-toggle {
    display: inline-grid;
    flex: 0 0 auto;
  }

  .site-nav {
    position: absolute;
    z-index: 50;
    top: calc(100% + 1px);
    right: 0;
    left: 0;
    display: none;
    overflow: visible;
    padding: 8px 16px 14px;
    border-bottom: 1px solid var(--line);
    background: var(--header);
    box-shadow: 0 16px 32px rgba(29, 29, 31, 0.14);
    backdrop-filter: blur(18px);
  }

  :root[data-theme="dark"] .site-nav {
    box-shadow: 0 18px 34px rgba(0, 0, 0, 0.42);
  }

  .site-header.nav-open .site-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
    animation: mobile-nav-enter 180ms ease-out both;
  }

  .site-nav a {
    min-height: 42px;
    justify-content: center;
    padding: 0 8px;
    border: 1px solid transparent;
    border-radius: 7px;
    font-size: 13px;
    white-space: nowrap;
  }

  .site-nav a:hover,
  .site-nav a[aria-current="page"] {
    border-bottom-color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-wash);
  }

  .language-switch button {
    min-width: 36px;
    padding: 0 7px;
  }

  .nav-controls {
    gap: 5px;
  }

  .icon-button {
    width: 38px;
    height: 38px;
  }

  .hero {
    display: block;
    min-height: 0;
    padding: 0 0 34px;
    background-color: #0b1016;
    background-image: none;
  }

  .hero::before {
    display: none;
  }

  .hero-content {
    padding: 60px 0 24px;
  }

  .hero-copy {
    font-size: 18px;
  }

  .hero-mobile-preview {
    position: relative;
    z-index: 1;
    display: block;
    animation: hero-preview-enter 680ms cubic-bezier(0.22, 1, 0.36, 1) 140ms both;
  }

  .hero-preview-frame {
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.24);
    border-radius: 18px;
    background: #06080b;
    box-shadow: 0 22px 46px rgba(0, 0, 0, 0.34), inset 0 1px 0 rgba(255, 255, 255, 0.24);
  }

  .hero-preview-frame::after {
    position: absolute;
    inset: 0;
    pointer-events: none;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: inherit;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3);
    content: "";
  }

  .hero-preview-frame img {
    width: 100%;
    height: auto;
  }

  .hero-scroll {
    display: none;
  }

  .section {
    padding: 64px 0;
  }

  .page-intro {
    padding: 80px 0 54px;
  }

  .page-intro p:last-child {
    font-size: 17px;
  }

  .feature-grid,
  .image-grid,
  .download-sources,
  .dialog-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    min-height: 0;
  }

  .feature-card > svg {
    margin-bottom: 24px;
  }

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

  .carousel-controls {
    justify-content: flex-start;
  }

  .carousel-dots {
    display: none;
  }

  .release-panel {
    padding: 20px;
  }

  .release-heading,
  .release-record summary,
  .footer-wrap {
    align-items: start;
    flex-direction: column;
  }

  .release-record summary {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .release-heading .release-actions {
    width: 100%;
  }

  .release-heading .button {
    flex: 1 1 auto;
  }

  .dialog-head,
  .dialog-content {
    padding-right: 18px;
    padding-left: 18px;
  }
}

@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;
  }
}