:root {
  --color-bg: #FFFFFF;
  --color-panel: #F7F5F2;
  --color-panel-warm: #FCEFE6;
  --color-border: #E8E4DE;
  --color-accent: #F4702E;
  --color-accent-dark: #D9541C;
  --color-accent-ink: #9D3510;
  --color-text: #211E1A;
  --color-muted: #6E675E;
  --color-success: #3BA55C;
  --color-warning: #E8A13B;
  --color-error: #DE4B3E;
  --color-white-alpha: rgba(255, 255, 255, 0);
  --color-text-alpha-05: rgba(33, 30, 26, 0.05);
  --color-text-alpha-06: rgba(33, 30, 26, 0.06);
  --color-text-alpha-08: rgba(33, 30, 26, 0.08);
  --color-text-alpha-14: rgba(33, 30, 26, 0.14);
  --color-text-alpha-18: rgba(33, 30, 26, 0.18);
  --color-accent-alpha-18: rgba(217, 84, 28, 0.18);
  --color-accent-alpha-45: rgba(217, 84, 28, 0.45);
  --font-display: 'Inter', 'Noto Sans SC', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Inter', 'Noto Sans SC', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
  --radius-sm: 10px;
  --radius-block: 14px;
  --radius-card: 22px;
  --radius-panel: 24px;
  --radius-pill: 999px;
  --gradient-accent: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  --gradient-halo: radial-gradient(closest-side, var(--color-panel-warm) 0%, var(--color-white-alpha) 74%);
  --shadow-soft: 0 1px 2px var(--color-text-alpha-05), 0 8px 24px -8px var(--color-text-alpha-08);
  --shadow-card: 0 2px 6px var(--color-text-alpha-06), 0 34px 70px -18px var(--color-accent-alpha-18);
  --shadow-menu: 0 4px 12px var(--color-text-alpha-06), 0 20px 44px -12px var(--color-text-alpha-14);
  --shadow-button: 0 6px 18px -6px var(--color-accent-alpha-45);
  --shadow-knob: 0 1px 3px var(--color-text-alpha-18);
  --content-width: 1192px;
  --header-width: 1280px;
  --gutter: clamp(16px, 3.2vw, 44px);
  --header-height: 72px;
  --section-space: clamp(68px, 9vw, 116px);
  --transition-fast: 150ms ease;
  --transition-reveal: 620ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  background: var(--color-bg);
}

html.nav-open {
  overflow: hidden;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: clip;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

svg[aria-hidden="true"] {
  flex-shrink: 0;
}

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

p a,
li a:not(.button),
.prose a {
  color: var(--color-accent-ink);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

button {
  border: 0;
  background: none;
  cursor: pointer;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

nav ul,
.footer-links,
.clean-list {
  list-style: none;
}

table {
  border-collapse: collapse;
}

code,
kbd,
samp,
pre {
  font-family: var(--font-mono);
}

:not(pre) > code {
  overflow-wrap: anywhere;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  color: var(--color-text);
  padding: 0.12em 0.4em;
  font-size: 0.9em;
}

pre {
  max-width: 100%;
  margin: 24px 0;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-block);
  background: var(--color-panel);
  color: var(--color-text);
  padding: 20px;
  line-height: 1.7;
  -webkit-overflow-scrolling: touch;
}

pre code {
  white-space: pre;
}

.wrap {
  width: 100%;
  max-width: calc(var(--content-width) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.header-wrap {
  width: 100%;
  max-width: min(100%, calc(var(--header-width) + var(--gutter) * 2));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

main,
section,
article,
aside,
header,
footer,
div {
  min-width: 0;
}

.section {
  padding-top: var(--section-space);
  padding-bottom: var(--section-space);
}

.section-compact {
  padding-top: clamp(44px, 6vw, 72px);
  padding-bottom: clamp(44px, 6vw, 72px);
}

.overflow-guard,
.hero,
.hero-stage,
.decorated-section {
  overflow-x: clip;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-display);
  text-wrap: balance;
}

h1,
.hero-title {
  font-size: clamp(34px, 3.35vw, 48px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.015em;
}

h2 {
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 780;
  line-height: 1.2;
  letter-spacing: -0.012em;
}

h3 {
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 720;
  line-height: 1.3;
}

h4 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
}

p {
  margin: 0;
}

.prose {
  max-width: 76ch;
  color: var(--color-text);
}

.prose > * + * {
  margin-top: 1.25em;
}

.prose h2 {
  margin-top: 2.4em;
  scroll-margin-top: 96px;
}

.prose h3 {
  margin-top: 1.8em;
  scroll-margin-top: 96px;
}

.prose ul,
.prose ol {
  padding-left: 1.4em;
}

.prose li + li {
  margin-top: 0.55em;
}

.prose p,
.prose li {
  overflow-wrap: break-word;
}

.keyword-lock,
.nowrap-word {
  white-space: nowrap;
}

.gradient-text {
  background: var(--gradient-accent);
  color: transparent;
  -webkit-background-clip: text;
  background-clip: text;
}

.eyebrow {
  margin-bottom: 12px;
  color: var(--color-accent-ink);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.lede {
  max-width: 62ch;
  color: var(--color-muted);
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.8;
}

.muted {
  color: var(--color-muted);
}

.panel,
.card {
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
}

.panel {
  border-radius: var(--radius-panel);
  padding: clamp(24px, 4vw, 48px);
}

.panel-soft {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-panel);
  background: var(--color-panel);
  color: var(--color-text);
  padding: clamp(24px, 4vw, 48px);
}

.panel-warm {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-panel);
  background: var(--color-panel-warm);
  color: var(--color-text);
  padding: clamp(24px, 4vw, 48px);
}

.card {
  border-radius: var(--radius-card);
  padding: 24px;
  box-shadow: var(--shadow-soft);
}

.tilt-card {
  transform: rotate(-2deg);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  max-width: 100%;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border-radius: var(--radius-pill);
  padding: 12px 24px;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.button svg {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
}

.button-primary {
  border: 1px solid var(--color-accent-dark);
  background: var(--gradient-accent);
  color: var(--color-text);
  box-shadow: var(--shadow-button);
}

.button-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-card);
}

.button-secondary {
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
}

.button-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
}

.button-quiet {
  border: 1px solid var(--color-border);
  background: var(--color-panel);
  color: var(--color-text);
}

.button[aria-disabled="true"],
.button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  transform: none;
  box-shadow: none;
}

.chip-row,
.platform-row,
.fact-band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.chip,
.platform-chip,
.fact-pill {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-muted);
}

.chip {
  background: var(--color-panel);
  padding: 5px 12px;
  font-size: 12.5px;
}

.chip-dot,
.status-dot {
  width: 6px;
  height: 6px;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--gradient-accent);
}

.platform-chip {
  min-height: 34px;
  background: var(--color-bg);
  padding: 7px 13px;
  font-size: 13px;
  box-shadow: var(--shadow-soft);
}

.platform-chip svg {
  width: 14px;
  height: 14px;
  color: var(--color-muted);
}

.fact-pill {
  background: var(--color-panel);
  padding: 7px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}

.reveal.shown {
  opacity: 1;
  transform: none;
}

/* Shared header */
.site-header,
.preview-header {
  position: relative;
  z-index: 100;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
}

.header-bar {
  display: flex;
  height: var(--header-height);
  align-items: center;
  gap: 30px;
}

.site-brand {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 750;
  letter-spacing: 0.01em;
}

.site-brand img {
  width: 28px;
  height: 28px;
}

.desktop-nav {
  display: flex;
  margin-left: auto;
  align-items: center;
  gap: 4px;
}

.desktop-nav > a,
.nav-more-button {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  gap: 5px;
  border-radius: var(--radius-pill);
  padding: 8px 13px;
  color: var(--color-muted);
  font-size: 14px;
  white-space: nowrap;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.desktop-nav > a:hover,
.nav-more-button:hover,
.desktop-nav > a.is-active,
.nav-more.is-active .nav-more-button {
  background: var(--color-panel);
  color: var(--color-text);
}

.desktop-nav > a.is-active,
.nav-more.is-active .nav-more-button {
  font-weight: 700;
}

.nav-more,
.language-picker {
  position: relative;
}

.nav-caret {
  font-size: 10px;
  line-height: 1;
}

.nav-more-menu,
.language-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 180px;
  visibility: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-block);
  background: var(--color-bg);
  color: var(--color-text);
  padding: 6px;
  opacity: 0;
  box-shadow: var(--shadow-menu);
  transform: translateY(-4px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}

.nav-more:hover .nav-more-menu,
.nav-more:focus-within .nav-more-menu,
.language-picker.is-open .language-menu {
  visibility: visible;
  opacity: 1;
  transform: none;
}

.nav-more-menu a,
.language-menu a {
  display: flex;
  width: 100%;
  min-height: 44px;
  align-items: center;
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  color: var(--color-text);
  font-size: 14px;
}

.nav-more-menu a:hover,
.nav-more-menu a.is-active,
.language-menu a:hover,
.language-menu a[aria-current="true"] {
  background: var(--color-panel);
  color: var(--color-text);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 8px;
}

.language-button {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-bg);
  color: var(--color-muted);
  padding: 8px 13px;
  white-space: nowrap;
}

.language-button:hover,
.language-button[aria-expanded="true"] {
  border-color: var(--color-accent);
  color: var(--color-text);
}

.language-short {
  display: none;
}

.menu-toggle {
  display: none;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-bg);
  color: var(--color-text);
}

.menu-toggle-lines,
.menu-toggle-lines::before,
.menu-toggle-lines::after {
  width: 18px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--color-text);
}

.menu-toggle-lines {
  position: relative;
}

.menu-toggle-lines::before,
.menu-toggle-lines::after {
  position: absolute;
  left: 0;
  content: "";
}

.menu-toggle-lines::before {
  top: -6px;
}

.menu-toggle-lines::after {
  top: 6px;
}

.mobile-nav {
  display: none;
}

.nav-veil {
  display: none;
}

/* Shared footer */
.site-footer,
.preview-footer {
  margin-top: var(--section-space);
  border-top: 1px solid var(--color-border);
  background: var(--color-panel);
  color: var(--color-text);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(240px, 1.4fr) repeat(3, minmax(150px, 1fr));
  gap: clamp(28px, 5vw, 64px);
  padding-top: 58px;
  padding-bottom: 46px;
}

.footer-brand {
  max-width: 34ch;
}

.footer-brand .site-brand {
  margin-bottom: 16px;
}

.footer-brand p {
  color: var(--color-muted);
  font-size: 14px;
}

.footer-column h2 {
  margin-bottom: 14px;
  font-size: 14px;
  letter-spacing: 0.03em;
}

.footer-links {
  display: grid;
  gap: 4px;
}

.footer-links a {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  color: var(--color-muted);
  font-size: 14px;
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
  padding-bottom: 24px;
  color: var(--color-muted);
  font-size: 13px;
}

.footer-bottom-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.data-table {
  width: 100%;
  min-width: 680px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
}

.data-table th,
.data-table td {
  border-bottom: 1px solid var(--color-border);
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
}

.data-table th {
  background: var(--color-panel);
  color: var(--color-text);
  font-size: 13px;
}

.data-table td {
  color: var(--color-muted);
}

.table-wrap {
  max-width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-block);
  -webkit-overflow-scrolling: touch;
}

/* Approved hero and product mock */
.fold {
  display: flex;
  min-height: 100svh;
  flex-direction: column;
}

.fold > .hero {
  display: grid;
  flex: 1;
  align-content: center;
}

.hero-layout {
  display: grid;
  width: 100%;
  grid-template-columns: 42fr 58fr;
  align-items: center;
  gap: 56px;
  padding-top: 28px;
  padding-bottom: 28px;
}

.hero-copy .chip-row {
  margin-bottom: 22px;
}

.hero-copy h1 {
  margin-bottom: 20px;
}

.hero-copy .lede {
  max-width: 46ch;
  margin-bottom: 30px;
  font-size: 16.5px;
}

.hero-copy .button-row {
  margin-bottom: 30px;
}

.hero-stage {
  position: relative;
  display: grid;
  justify-items: center;
  padding-block: 34px;
}

.hero-stage::before {
  position: absolute;
  z-index: 0;
  top: 50%;
  right: -8%;
  bottom: -6%;
  left: -8%;
  border-radius: var(--radius-pill);
  background: var(--gradient-halo);
  content: "";
}

.client-mock {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 640px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-bg);
  color: var(--color-text);
  box-shadow: var(--shadow-card);
  transform: rotate(-2deg);
}

.mock-titlebar {
  display: flex;
  align-items: center;
  gap: 7px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-panel);
  color: var(--color-text);
  padding: 13px 18px;
}

.window-dot {
  width: 11px;
  height: 11px;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--color-border);
}

.window-tab {
  margin-left: 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-bg);
  color: var(--color-text);
  padding: 4px 14px;
  font-size: 12px;
  font-weight: 700;
}

.window-hint {
  margin-left: auto;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.mock-body {
  display: grid;
  grid-template-columns: 136px 1fr;
}

.mock-sidebar {
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-right: 1px solid var(--color-border);
  background: var(--color-panel);
  color: var(--color-muted);
  padding: 14px 10px;
}

.mock-nav-item {
  display: flex;
  align-items: center;
  gap: 9px;
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  font-size: 13px;
}

.mock-nav-item.is-active {
  background: var(--color-bg);
  color: var(--color-text);
  font-weight: 700;
  box-shadow: var(--shadow-soft);
}

.mock-nav-icon {
  width: 13px;
  height: 13px;
  flex-shrink: 0;
  border: 1.5px solid currentColor;
  border-radius: 3px;
}

.mock-main {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px 20px 16px;
}

.mock-modes {
  display: inline-flex;
  align-self: flex-start;
  gap: 3px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-muted);
  padding: 3px;
}

.mock-mode {
  border-radius: var(--radius-pill);
  padding: 6px 18px;
  font-size: 12.5px;
}

.mock-mode.is-selected {
  background: var(--gradient-accent);
  color: var(--color-bg);
  font-weight: 700;
}

.setting-row {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-block);
  background: var(--color-bg);
  color: var(--color-text);
  padding: 11px 14px;
}

.setting-title {
  font-size: 13.5px;
  font-weight: 700;
}

.setting-note {
  margin-top: 2px;
  color: var(--color-muted);
  font-size: 11.5px;
}

.toggle-switch {
  position: relative;
  width: 38px;
  height: 21px;
  margin-left: auto;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--color-border);
}

.toggle-switch::after {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 15px;
  height: 15px;
  border-radius: var(--radius-pill);
  background: var(--color-bg);
  box-shadow: var(--shadow-knob);
  content: "";
}

.toggle-switch.is-on {
  background: var(--gradient-accent);
}

.toggle-switch.is-on::after {
  right: 3px;
  left: auto;
}

.proxy-group {
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-block);
  background: var(--color-panel);
  color: var(--color-text);
}

.proxy-group-head,
.proxy-group-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 14px;
}

.proxy-group-head {
  font-size: 13px;
  font-weight: 700;
}

.proxy-group-badge {
  margin-left: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-bg);
  color: var(--color-muted);
  padding: 2px 9px;
  font-family: var(--font-mono);
  font-size: 10.5px;
}

.proxy-group-item {
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-muted);
  font-size: 12.5px;
}

.proxy-node-dot {
  width: 7px;
  height: 7px;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--color-border);
}

.proxy-group-item.is-selected {
  color: var(--color-text);
  font-weight: 700;
}

.proxy-group-item.is-selected .proxy-node-dot {
  background: var(--gradient-accent);
}

.proxy-group-tag {
  margin-left: auto;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 10.5px;
}

.mock-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  border-top: 1px solid var(--color-border);
  background: var(--color-panel);
  color: var(--color-muted);
  padding: 10px 20px;
  font-family: var(--font-mono);
  font-size: 11px;
}

.mock-footer .status-dot {
  background: var(--color-success);
}

.hero-fact-band {
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-muted);
}

.hero-fact-band .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 16px;
  padding-bottom: 16px;
}

.hero-fact {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
}

.hero-fact::before {
  width: 6px;
  height: 6px;
  flex-shrink: 0;
  border-radius: 2px;
  background: var(--gradient-accent);
  content: "";
}

@media (max-width: 980px) {
  .desktop-nav {
    display: none;
  }

  .header-tools {
    margin-left: auto;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .mobile-nav {
    position: fixed;
    z-index: 102;
    top: var(--header-height);
    right: 0;
    left: 0;
    display: none;
    max-height: calc(100dvh - var(--header-height));
    overflow-y: auto;
    overscroll-behavior: contain;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg);
    color: var(--color-text);
    padding: 10px var(--gutter) 20px;
    box-shadow: var(--shadow-menu);
  }

  .mobile-nav.is-open {
    display: block;
  }

  .mobile-nav a,
  .mobile-nav-group-title {
    display: flex;
    width: 100%;
    min-height: 48px;
    align-items: center;
    border-radius: var(--radius-sm);
    padding: 11px 12px;
    color: var(--color-text);
  }

  .mobile-nav a:hover,
  .mobile-nav a.is-active,
  .mobile-nav a[aria-current="true"] {
    background: var(--color-panel);
    color: var(--color-text);
  }

  .mobile-nav-group {
    margin-top: 8px;
    border-top: 1px solid var(--color-border);
    padding-top: 8px;
  }

  .mobile-nav-group-title {
    min-height: 38px;
    color: var(--color-muted);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.06em;
  }

  .nav-veil {
    position: fixed;
    z-index: 99;
    inset: var(--header-height) 0 0;
    background: var(--color-text-alpha-18);
  }

  .nav-veil.is-open {
    display: block;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: 44px;
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .hero-copy {
    max-width: 680px;
  }

  .hero-stage {
    width: min(100%, 720px);
    margin-inline: auto;
  }

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

@media (max-width: 768px) {
  h1,
  .hero-title {
    font-size: clamp(24px, 7.2vw, 30px);
    line-height: 1.2;
    letter-spacing: -0.01em;
  }

  h2 {
    font-size: clamp(25px, 7vw, 34px);
  }

  .fold {
    min-height: auto;
  }

  .hero-copy .lede {
    font-size: 16px;
  }

  .hero-fact-band .wrap {
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .client-mock {
    transform: none;
  }

  .mock-body {
    grid-template-columns: 108px 1fr;
  }

  .mock-main {
    padding: 14px;
  }

  .mock-mode {
    padding-inline: 12px;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  :root {
    --gutter: 16px;
    --header-height: 64px;
  }

  .header-bar {
    gap: 12px;
  }

  .site-brand {
    font-size: 16px;
  }

  .site-brand img {
    width: 26px;
    height: 26px;
  }

  .language-full {
    display: none;
  }

  .language-short {
    display: inline;
  }

  .language-button {
    min-width: 44px;
    min-height: 44px;
    justify-content: center;
    padding-inline: 10px;
  }

  .tilt-card,
  .client-mock,
  [class*="tilt"] {
    transform: none;
  }

  .chip-row,
  .platform-row,
  .fact-band {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .hero-layout {
    gap: 34px;
    padding-top: 38px;
    padding-bottom: 38px;
  }

  .button-row .button {
    flex: 1 1 150px;
  }

  .hero-stage {
    padding-block: 20px;
  }

  .hero-stage::before {
    right: -2%;
    left: -2%;
  }

  .mock-body {
    grid-template-columns: 1fr;
  }

  .mock-sidebar {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
    padding: 7px;
  }

  .mock-nav-item {
    justify-content: center;
    padding: 8px 4px;
    font-size: 10px;
  }

  .mock-nav-icon {
    display: none;
  }

  .setting-row {
    padding: 10px 12px;
  }

  .window-hint {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    padding-top: 44px;
  }

  .footer-column {
    border-top: 1px solid var(--color-border);
    padding-top: 22px;
  }

  .panel,
  .panel-soft,
  .panel-warm,
  .card {
    padding: 20px;
  }

  .data-table th,
  .data-table td {
    padding: 12px;
  }
}

@media (max-width: 380px) {
  .site-brand span {
    max-width: 112px;
    white-space: normal;
    line-height: 1.15;
  }

  .header-tools {
    gap: 5px;
  }

  .mock-modes {
    width: 100%;
  }

  .mock-mode {
    flex: 1;
    padding-inline: 8px;
    text-align: center;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto;
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}