/* Nu Apps site shell.
 * Design basis: nexu-io/open-design design-systems/apple + craft typography/color rules.
 * Apple-inspired tokens are kept semantic and reused across all product, support, and privacy pages. */
:root {
  color-scheme: light;
  --bg: #ffffff;
  --surface: #f5f5f7;
  --surface-warm: #fbfbfd;
  --fg: #1d1d1f;
  --fg-2: #424245;
  --muted: #6e6e73;
  --meta: #86868b;
  --border: #d2d2d7;
  --border-soft: #e8e8ed;
  --accent: #0071e3;
  --accent-on: #ffffff;
  --accent-hover: #0077ed;
  --accent-active: #0066cc;
  --success: #16a34a;
  --warn: #b36b00;
  --danger: #d92d20;
  --font-display: "SF Pro Display", "SF Pro Icons", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-body: "SF Pro Text", "SF Pro Icons", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", ui-monospace, Menlo, Monaco, Consolas, monospace;
  --text-xs: 12px;
  --text-sm: 14px;
  --text-base: 17px;
  --text-lg: 21px;
  --text-xl: 28px;
  --text-2xl: 40px;
  --text-3xl: 56px;
  --text-4xl: 80px;
  --leading-body: 1.47;
  --leading-tight: 1.05;
  --tracking-display: -0.015em;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 30px;
  --radius-pill: 980px;
  --elev-flat: none;
  --elev-ring: 0 0 0 1px var(--border);
  --elev-raised: 0 18px 52px rgba(0, 0, 0, 0.08);
  --elev-hero: 0 36px 90px rgba(0, 0, 0, 0.12);
  --focus-ring: 0 0 0 4px color-mix(in oklab, var(--accent), transparent 65%);
  --motion-fast: 150ms;
  --motion-base: 220ms;
  --ease-standard: cubic-bezier(0.28, 0, 0.22, 1);
  --container-max: 1180px;
  --container-gutter-desktop: 40px;
  --container-gutter-tablet: 28px;
  --container-gutter-phone: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  letter-spacing: -0.018em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

.container {
  width: min(var(--container-max), calc(100% - var(--container-gutter-desktop) * 2));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  background: rgba(251, 251, 253, 0.78);
  backdrop-filter: saturate(180%) blur(24px);
}
.nav {
  width: min(var(--container-max), calc(100% - var(--container-gutter-desktop) * 2));
  min-height: 68px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  color: var(--fg);
  font-size: var(--text-base);
  font-weight: 650;
  white-space: nowrap;
}
.brand-mark {
  width: 32px;
  height: 32px;
  flex: 0 0 auto;
  border-radius: 9px;
  object-fit: cover;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}
.brand-mark.wordmark {
  display: inline-grid;
  place-items: center;
  background: #1d1d1f;
  color: #fff;
  font-size: 13px;
  font-weight: 720;
  letter-spacing: -0.03em;
}
.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.nav-link, .language-toggle, .btn, .action-link {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  font-weight: 560;
  line-height: 1.2;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: background-color var(--motion-fast) var(--ease-standard), color var(--motion-fast) var(--ease-standard), border-color var(--motion-fast) var(--ease-standard), transform var(--motion-fast) var(--ease-standard), box-shadow var(--motion-fast) var(--ease-standard);
}
.nav-link, .language-toggle { padding: 0 14px; color: var(--fg-2); }
.language-toggle {
  border: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, 0.7);
  cursor: pointer;
}
.nav-link:hover, .language-toggle:hover { background: rgba(0, 0, 0, 0.05); transform: translateY(-1px); }
.nav-link:focus-visible, .language-toggle:focus-visible, .btn:focus-visible, .action-link:focus-visible, .app-card:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.app-store-link, .primary-link {
  background: var(--accent);
  color: var(--accent-on);
  box-shadow: 0 12px 28px color-mix(in oklab, var(--accent), transparent 78%);
}
.app-store-link:hover, .primary-link:hover { background: var(--accent-hover); color: var(--accent-on); }
.nav-disabled, .nav-disabled:hover {
  color: var(--muted);
  background: var(--surface);
  box-shadow: none;
  cursor: default;
  transform: none;
}

main { display: block; }
.hero, .app-hero {
  min-height: calc(100svh - 68px);
  display: grid;
  align-items: center;
  gap: clamp(36px, 6vw, 76px);
  padding-block: clamp(68px, 8vw, 112px);
}
.hero { grid-template-columns: minmax(0, 0.92fr) minmax(360px, 1.08fr); }
.app-hero { grid-template-columns: minmax(0, 0.88fr) minmax(420px, 1.12fr); }
.app-hero.text-only-hero {
  grid-template-columns: minmax(0, 760px);
  justify-content: start;
}
.text-only-hero .hero-copy { width: min(760px, 100%); }
.text-only-hero .lead {
  max-width: 720px;
  min-height: 86px;
}
.text-only-hero .sublead {
  max-width: 720px;
  min-height: 92px;
}
.hero-copy { position: relative; z-index: 2; }
.kicker {
  margin: 0 0 var(--space-4);
  color: var(--accent);
  font-size: var(--text-xs);
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
h1, h2, h3 { margin: 0; color: var(--fg); font-family: var(--font-display); }
h1 {
  font-size: clamp(64px, 9vw, 132px);
  line-height: 0.93;
  font-weight: 680;
  letter-spacing: -0.045em;
}
.app-hero h1 { font-size: clamp(68px, 8vw, 120px); }
.lead {
  max-width: 660px;
  margin: var(--space-6) 0 0;
  color: var(--fg-2);
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.12;
  font-weight: 610;
  letter-spacing: -0.03em;
}
.sublead {
  max-width: 620px;
  margin: var(--space-5) 0 0;
  color: var(--muted);
  font-size: var(--text-lg);
  line-height: 1.42;
  font-weight: 420;
  letter-spacing: -0.018em;
}
.hero-actions { margin-top: var(--space-8); display: flex; gap: var(--space-3); flex-wrap: wrap; }
.btn, .action-link { padding: 11px 19px; border: 1px solid transparent; }
.secondary-link { border-color: var(--border); background: #fff; color: var(--fg); }
.secondary-link:hover { border-color: var(--meta); background: var(--surface-warm); }

.hero-panel {
  position: relative;
  isolation: isolate;
  min-height: 420px;
  display: grid;
  place-items: center;
}
.hero-panel::before {
  content: "";
  position: absolute;
  inset: 10% -2% 0 8%;
  z-index: -1;
  border-radius: 46px;
  background: linear-gradient(180deg, rgba(245, 245, 247, 0.88), rgba(255, 255, 255, 0.2));
  box-shadow: var(--elev-hero);
}
.showcase-image {
  width: min(860px, 120%);
  max-width: none;
  height: auto;
  filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.11));
}
.home-page .hero-panel .showcase-image { width: min(780px, 100%); }
.nufeed-page .showcase-image { width: min(700px, 100%); transform: none; }

.surface-section { background: var(--surface); padding-block: clamp(56px, 7vw, 96px); }
.white-section { background: #fff; padding-block: clamp(56px, 7vw, 96px); }
.section-heading {
  max-width: 760px;
  margin: 0 0 var(--space-8);
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.04;
  font-weight: 650;
  letter-spacing: -0.04em;
}
.section-intro { max-width: 700px; margin-top: -18px; margin-bottom: var(--space-8); color: var(--muted); font-size: var(--text-lg); line-height: 1.45; }

.apps-grid {
  display: grid;
  gap: var(--space-5);
  align-items: stretch;
}
.app-card {
  position: relative;
  min-height: 360px;
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: #fff;
  box-shadow: var(--elev-ring);
  color: var(--fg);
  transition: transform var(--motion-base) var(--ease-standard), box-shadow var(--motion-base) var(--ease-standard);
}
a.app-card:hover { transform: translateY(-3px); box-shadow: var(--elev-raised); }
.app-card.primary { display: grid; grid-template-columns: minmax(0, 0.86fr) minmax(360px, 1.14fr); min-height: 520px; }
.app-card-content { position: relative; z-index: 2; padding: clamp(24px, 3vw, 38px); display: flex; min-width: 0; flex-direction: column; justify-content: space-between; gap: var(--space-8); }
.app-title-row { display: flex; align-items: center; gap: var(--space-4); }
.app-icon { width: 62px; height: 62px; border-radius: 16px; object-fit: cover; box-shadow: 0 16px 34px rgba(0, 0, 0, 0.14); }
.status { margin: 0 0 4px; color: var(--accent); font-size: var(--text-xs); font-weight: 650; letter-spacing: 0.08em; text-transform: uppercase; }
.app-card h2, .app-card h3 { font-size: clamp(28px, 3vw, 42px); line-height: 1.05; letter-spacing: -0.035em; font-weight: 650; }
.app-card p { margin: var(--space-4) 0 0; color: var(--muted); font-size: var(--text-base); line-height: 1.5; }
.app-actions, .mini-actions { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.action-link.mini { min-height: 36px; padding: 8px 13px; font-size: 13px; }
.app-visual { position: relative; display: grid; place-items: center; min-width: 0; padding: var(--space-6); }
.app-visual .showcase-image { width: min(680px, 100%); }
.secondary-apps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}
.text-card {
  min-height: 278px;
}
.text-card .app-card-content {
  height: 100%;
}
.family-card { background: #1d1d1f; color: #fff; }
.family-card h3, .family-card p { color: inherit; }
.family-card p { opacity: 0.72; }

.feature-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}
.feature {
  padding: var(--space-8) var(--space-6) var(--space-8) 0;
  border-right: 1px solid var(--border-soft);
}
.feature + .feature { padding-left: var(--space-6); }
.feature:last-child { border-right: 0; }
.feature svg, .feature-icon {
  width: 32px;
  height: 32px;
  margin-bottom: var(--space-5);
  color: var(--accent);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.feature h2, .feature h3 { font-size: var(--text-lg); line-height: 1.18; font-weight: 650; letter-spacing: -0.018em; }
.feature p { margin: var(--space-3) 0 0; color: var(--muted); font-size: var(--text-sm); line-height: 1.48; }

.mock-window {
  width: min(760px, 100%);
  border-radius: 30px;
  background: rgba(255,255,255,0.94);
  box-shadow: var(--elev-hero);
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.06);
}
.window-bar { height: 48px; display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding: 0 var(--space-5); border-bottom: 1px solid var(--border-soft); color: var(--fg); font-weight: 650; font-size: var(--text-sm); }
.traffic { display: flex; gap: 8px; }
.traffic span { width: 11px; height: 11px; border-radius: 50%; }
.traffic span:nth-child(1) { background: #ff5f57; }
.traffic span:nth-child(2) { background: #febc2e; }
.traffic span:nth-child(3) { background: #28c840; }
.window-tools { display: flex; gap: var(--space-2); }
.window-tool { padding: 6px 10px; border-radius: var(--radius-pill); background: var(--surface); color: var(--fg-2); }
.document-demo, .voice-demo { display: grid; grid-template-columns: 0.75fr 1.15fr 0.78fr; min-height: 420px; }
.demo-sidebar, .demo-inspector { background: var(--surface); padding: var(--space-5); }
.demo-main { padding: var(--space-5); border-inline: 1px solid var(--border-soft); }
.demo-title { margin: 0 0 var(--space-4); font-size: var(--text-base); font-weight: 650; }
.file-drop, .shortcut-panel { border: 1px dashed color-mix(in oklab, var(--danger), transparent 40%); color: #7b2822; background: color-mix(in oklab, var(--danger), white 92%); border-radius: var(--radius-lg); padding: var(--space-5); font-weight: 650; line-height: 1.2; }
.queue-card, .inspector-card, .speech-card { margin-top: var(--space-3); border-radius: var(--radius-lg); background: #fff; padding: var(--space-4); box-shadow: var(--elev-ring); }
.queue-card strong, .speech-card strong { display: block; font-size: var(--text-sm); }
.queue-card span, .speech-card p, .side-meta { color: var(--muted); font-size: 13px; margin: 4px 0 0; }
.badge { color: var(--danger); font-size: 12px; font-weight: 700; float: right; }
.doc-sheet { aspect-ratio: 0.74 / 1; max-height: 360px; margin-inline: auto; border-radius: var(--radius-md); background: #fff; box-shadow: var(--elev-ring); padding: var(--space-8); position: relative; overflow: hidden; }
.line { height: 9px; border-radius: 99px; background: #c9c9cf; margin-bottom: 15px; }
.line.dark { width: 58%; background: #4a4a4d; }
.line.short { width: 42%; }
.watermark { position: absolute; inset: auto 0 36%; text-align: center; transform: rotate(-22deg); color: rgba(217,45,32,0.12); font-size: 64px; font-weight: 800; letter-spacing: -0.04em; }
.switch { width: 42px; height: 24px; border-radius: 99px; background: #4cd964; margin-left: auto; }
.voice-demo { grid-template-columns: 0.82fr 1.2fr 0.78fr; }
.wave { display: flex; align-items: center; justify-content: center; gap: 7px; height: 88px; margin: var(--space-4) 0; }
.wave span { width: 7px; border-radius: 99px; background: #1d1d1f; opacity: 0.8; }
.wave span:nth-child(1) { height: 22px; } .wave span:nth-child(2) { height: 48px; } .wave span:nth-child(3) { height: 66px; } .wave span:nth-child(4) { height: 38px; } .wave span:nth-child(5) { height: 54px; }
.status-pill { padding: 6px 10px; border-radius: var(--radius-pill); background: color-mix(in oklab, var(--success), white 86%); color: #16783c; font-size: 12px; font-weight: 700; }
.field-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-block: 8px; color: var(--fg-2); font-size: var(--text-sm); }
.field-value { width: 72px; height: 8px; border-radius: 99px; background: #cacad0; }

.phone-mock {
  position: relative;
  width: min(360px, 100%);
  margin-inline: auto;
  border: 10px solid #171719;
  border-radius: 46px;
  background: #fff;
  box-shadow: var(--elev-hero);
  overflow: hidden;
}
.phone-mock::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 50%;
  z-index: 3;
  width: 108px;
  height: 28px;
  transform: translateX(-50%);
  border-radius: 0 0 18px 18px;
  background: #111;
}
.phone-screen {
  min-height: 640px;
  padding: 46px 18px 22px;
  background: linear-gradient(180deg, #fbfbfd 0%, #f5f5f7 100%);
}
.phone-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.phone-title { margin: 0; font-size: 24px; font-weight: 720; letter-spacing: -0.035em; }
.phone-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: 0 10px 20px rgba(0,0,0,0.12);
}
.phone-segment {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 4px;
  border-radius: var(--radius-pill);
  background: rgba(0,0,0,0.06);
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
}
.phone-segment span { display: grid; place-items: center; min-height: 28px; border-radius: var(--radius-pill); }
.phone-segment .active { background: #fff; color: var(--fg); box-shadow: 0 1px 3px rgba(0,0,0,0.08); }
.document-list { display: grid; gap: 10px; margin-top: var(--space-4); }
.document-row {
  border-radius: var(--radius-lg);
  background: #fff;
  padding: 13px;
  box-shadow: var(--elev-ring);
}
.document-row strong { display: block; font-size: 14px; line-height: 1.2; }
.document-row span { display: block; margin-top: 4px; color: var(--muted); font-size: 12px; }
.tts-player {
  margin-top: var(--space-4);
  border-radius: 24px;
  background: #1d1d1f;
  color: #fff;
  padding: 18px;
  box-shadow: 0 20px 42px rgba(0,0,0,0.18);
}
.tts-player p { margin: 0; color: rgba(255,255,255,0.7); font-size: 12px; }
.tts-player strong { display: block; margin-top: 4px; font-size: 17px; line-height: 1.18; }
.audio-bars {
  display: flex;
  align-items: end;
  gap: 5px;
  height: 54px;
  margin: 18px 0 14px;
}
.audio-bars span {
  width: 9px;
  border-radius: 99px;
  background: linear-gradient(180deg, #f4d78f, #ffffff);
  opacity: 0.95;
}
.audio-bars span:nth-child(1) { height: 18px; }
.audio-bars span:nth-child(2) { height: 36px; }
.audio-bars span:nth-child(3) { height: 25px; }
.audio-bars span:nth-child(4) { height: 48px; }
.audio-bars span:nth-child(5) { height: 30px; }
.audio-bars span:nth-child(6) { height: 42px; }
.audio-bars span:nth-child(7) { height: 22px; }
.audio-progress { height: 7px; border-radius: 99px; background: rgba(255,255,255,0.18); overflow: hidden; }
.audio-progress span { display: block; width: 58%; height: 100%; border-radius: inherit; background: #f4d78f; }
.phone-settings {
  display: grid;
  gap: 8px;
  margin-top: var(--space-4);
}
.phone-setting {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.8);
  padding: 12px 13px;
  color: var(--fg-2);
  font-size: 12px;
  font-weight: 620;
  box-shadow: var(--elev-ring);
}
.phone-setting span:last-child { color: var(--muted); font-weight: 560; }

.nubarcode-page {
  --accent: #0a68d6;
  --accent-hover: #0875ef;
  --accent-active: #0057bd;
}
.barcode-hero-panel::before {
  inset: 8% 2% 2% 2%;
  background:
    radial-gradient(circle at 68% 18%, rgba(10, 104, 214, 0.16), transparent 34%),
    linear-gradient(180deg, rgba(245, 247, 252, 0.92), rgba(255, 255, 255, 0.22));
}
.barcode-phone {
  width: min(380px, 100%);
  transform: translateY(-6px);
}
.barcode-screen { min-height: 660px; }
.scan-preview {
  position: relative;
  display: grid;
  place-items: center;
  height: 280px;
  margin-top: var(--space-4);
  overflow: hidden;
  border-radius: 28px;
  background:
    radial-gradient(circle at 50% 50%, rgba(10, 104, 214, 0.3), transparent 42%),
    linear-gradient(135deg, #11151d, #05070a);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.08), 0 18px 38px rgba(0,0,0,0.16);
}
.scan-preview::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(rgba(255,255,255,0.055) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.055) 1px, transparent 1px);
  background-size: 24px 24px;
}
.scan-corner {
  position: absolute;
  z-index: 2;
  width: 42px;
  height: 42px;
  border-color: #8fc8ff;
}
.scan-corner.top-left { top: 24px; left: 24px; border-top: 3px solid; border-left: 3px solid; border-radius: 14px 0 0; }
.scan-corner.top-right { top: 24px; right: 24px; border-top: 3px solid; border-right: 3px solid; border-radius: 0 14px 0 0; }
.scan-corner.bottom-left { bottom: 24px; left: 24px; border-bottom: 3px solid; border-left: 3px solid; border-radius: 0 0 0 14px; }
.scan-corner.bottom-right { right: 24px; bottom: 24px; border-right: 3px solid; border-bottom: 3px solid; border-radius: 0 0 14px; }
.qr-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  width: 172px;
  height: 172px;
  padding: 15px;
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 20px 46px rgba(0,0,0,0.28);
}
.qr-grid span {
  border-radius: 5px;
  background: #11151d;
}
.qr-grid span:nth-child(2),
.qr-grid span:nth-child(5),
.qr-grid span:nth-child(8),
.qr-grid span:nth-child(10),
.qr-grid span:nth-child(13),
.qr-grid span:nth-child(15) { background: #dfe6f0; }
.scan-line {
  position: absolute;
  left: 34px;
  right: 34px;
  top: 52%;
  z-index: 2;
  height: 2px;
  border-radius: 99px;
  background: linear-gradient(90deg, transparent, #ffffff, transparent);
  box-shadow: 0 0 18px #66b7ff;
}
.barcode-result {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: var(--space-4);
  padding: 14px;
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--elev-ring);
}
.barcode-result strong {
  display: block;
  overflow: hidden;
  color: var(--fg);
  font-size: 14px;
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.barcode-result span:not(.status-pill) {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}
.barcode-actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 7px;
  margin-top: var(--space-3);
}
.barcode-actions span {
  display: grid;
  place-items: center;
  min-height: 34px;
  border-radius: var(--radius-pill);
  background: rgba(10,104,214,0.09);
  color: var(--accent-active);
  font-size: 12px;
  font-weight: 650;
}
.barcode-floating-card {
  position: absolute;
  right: 1%;
  bottom: 13%;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: 270px;
  padding: 14px 16px;
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: 24px;
  background: rgba(255,255,255,0.88);
  box-shadow: 0 24px 60px rgba(0,0,0,0.14);
  backdrop-filter: blur(22px);
}
.mini-qr {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  width: 58px;
  height: 58px;
  padding: 8px;
  border-radius: 14px;
  background: #fff;
  box-shadow: var(--elev-ring);
}
.mini-qr span {
  border-radius: 3px;
  background: #11151d;
}
.mini-qr span:nth-child(2),
.mini-qr span:nth-child(4),
.mini-qr span:nth-child(8) { background: #dfe6f0; }
.barcode-floating-card strong {
  display: block;
  font-size: var(--text-sm);
  line-height: 1.2;
}
.barcode-floating-card p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.doc-hero { padding-block: clamp(64px, 8vw, 110px) var(--space-12); }
.doc-layout { display: grid; grid-template-columns: minmax(0, 0.72fr) minmax(260px, 0.28fr); gap: var(--space-8); align-items: start; padding-bottom: clamp(64px, 8vw, 110px); }
.doc-page h1 { font-size: clamp(46px, 6vw, 82px); }
.updated { margin: var(--space-4) 0 0; color: var(--meta); font-size: var(--text-sm); }
.doc-lead { max-width: 760px; margin: var(--space-5) 0 0; color: var(--fg-2); font-size: clamp(21px, 2.2vw, 30px); line-height: 1.25; font-weight: 560; letter-spacing: -0.025em; }
.doc-card, .doc-side {
  border-radius: var(--radius-xl);
  background: var(--surface);
  padding: clamp(24px, 3vw, 38px);
  box-shadow: var(--elev-ring);
}
.doc-card { background: #fff; }
.doc-section + .doc-section { margin-top: var(--space-8); padding-top: var(--space-8); border-top: 1px solid var(--border-soft); }
.doc-section h2, .doc-side h2 { font-size: clamp(24px, 2.4vw, 34px); line-height: 1.12; letter-spacing: -0.025em; }
.doc-section p, .doc-side p, .doc-list { color: var(--muted); font-size: var(--text-base); line-height: 1.58; }
.doc-section p { margin: var(--space-3) 0 0; }
.doc-side { position: sticky; top: 92px; }
.doc-list { margin: var(--space-4) 0 0; padding-left: 20px; }
.doc-list li + li { margin-top: var(--space-2); }
.side-links { display: grid; gap: var(--space-2); margin-top: var(--space-4); }
.side-links a { color: var(--accent-active); font-weight: 560; }
.contact-line { display: inline-flex; margin-top: var(--space-4); color: var(--meta); font-size: var(--text-sm); }

.footer { border-top: 1px solid var(--border-soft); padding: 28px 0; color: var(--meta); background: var(--surface-warm); font-size: var(--text-sm); }
.footer .container { display: flex; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; }
.footer a { color: var(--fg-2); }

@media (max-width: 980px) {
  :root { --container-gutter-desktop: 28px; }
  .hero, .app-hero, .app-card.primary, .doc-layout { grid-template-columns: 1fr; }
  .secondary-apps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero, .app-hero { min-height: auto; padding-block: 64px; }
  .hero-panel { min-height: auto; }
  .hero-panel::before { inset: 8% 0 0; }
  .showcase-image, .nufeed-page .showcase-image { width: min(100%, 780px); transform: none; }
  .home-page .hero-panel .showcase-image { width: min(100%, 780px); }
  .app-visual .showcase-image { width: min(100%, 720px); }
  .barcode-floating-card { right: 0; bottom: 5%; }
  .feature-strip { grid-template-columns: repeat(2, 1fr); }
  .feature, .feature + .feature { padding: var(--space-6); border-right: 0; border-bottom: 1px solid var(--border-soft); }
  .feature:nth-last-child(-n+1) { border-bottom: 0; }
  .doc-side { position: static; }
}
@media (max-width: 720px) {
  :root { --container-gutter-desktop: 18px; }
  .nav { width: min(var(--container-max), calc(100% - 24px)); min-height: 62px; gap: var(--space-3); }
  .brand { font-size: var(--text-sm); }
  .brand-mark { width: 29px; height: 29px; }
  .nav-links { gap: 4px; }
  .nav-link, .language-toggle { min-height: 34px; padding: 0 10px; font-size: 12px; }
  .nav-link.optional { display: none; }
  h1, .app-hero h1 { font-size: clamp(52px, 17vw, 76px); }
  .lead { font-size: clamp(23px, 7vw, 34px); }
  .sublead { font-size: 17px; }
  .text-only-hero .lead, .text-only-hero .sublead { min-height: 0; }
  .app-card, .app-card.primary { min-height: auto; border-radius: 24px; }
  .secondary-apps { grid-template-columns: 1fr; }
  .text-card { min-height: auto; }
  .app-card-content { padding: 24px; }
  .apps-grid { gap: var(--space-3); }
  .feature-strip { grid-template-columns: 1fr; }
  .feature, .feature + .feature { padding: var(--space-6) 0; }
  .document-demo, .voice-demo { grid-template-columns: 1fr; }
  .demo-main { border-inline: 0; border-block: 1px solid var(--border-soft); }
  .window-tools { display: none; }
  .mock-window { border-radius: 24px; }
  .phone-mock { width: min(330px, 100%); border-radius: 40px; border-width: 8px; }
  .phone-screen { min-height: 570px; padding-inline: 14px; }
  .barcode-phone { width: min(330px, 100%); transform: none; }
  .barcode-screen { min-height: 620px; }
  .barcode-floating-card { position: static; width: min(300px, 100%); margin: -18px auto 0; }
  .doc-card, .doc-side { border-radius: 24px; padding: 24px; }
}