:root {
  --bg: #07101d;
  --bg-soft: #0b1730;
  --panel: rgba(12, 23, 44, 0.78);
  --panel-strong: rgba(11, 21, 38, 0.94);
  --text: #eef4ff;
  --muted: #9fb0d2;
  --line: rgba(255,255,255,.08);
  --line-strong: rgba(255,255,255,.14);
  --accent: #6c7dff;
  --accent-2: #fe5b73;
  --accent-3: #8dd8ff;
  --success: #6be2a7;
  --warning: #ffd56b;
  --shadow: 0 26px 80px rgba(0,0,0,.36);
  --radius-2xl: 34px;
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --container: 1240px;
  --section-y: 86px;
  --header-h: 78px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; }
body {
  overflow-x: clip;
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(108,125,255,.24), transparent 28%),
    radial-gradient(circle at 82% 4%, rgba(254,91,115,.17), transparent 22%),
    radial-gradient(circle at 14% 88%, rgba(141,216,255,.08), transparent 20%),
    linear-gradient(180deg, #07101d 0%, #091220 48%, #0a1324 100%);
}
body.route-loading { cursor: progress; }
[hidden] {
  display: none !important;
}

a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
img { max-width: 100%; display: block; }
.container { width: min(var(--container), calc(100% - 32px)); margin: 0 auto; }

.page-shell {
  position: relative;
  overflow-x: clip;
}
.page-shell::before,
.page-shell::after {
  content: "";
  position: fixed;
  width: 34rem;
  height: 34rem;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .18;
  pointer-events: none;
  z-index: -1;
}
.page-shell::before { right: -10rem; top: -10rem; background: var(--accent); }
.page-shell::after { left: -10rem; bottom: -12rem; background: var(--accent-2); }

.route-progress {
  position: fixed;
  inset: 0 auto auto 0;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 18px rgba(108,125,255,.45);
  z-index: 999;
  opacity: 0;
  transition: width .28s ease, opacity .28s ease;
}
.route-progress.visible { opacity: 1; }
.route-progress.done { width: 100%; opacity: 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: rgba(5, 10, 18, .72);
  border-bottom: 1px solid var(--line);
}
.header-row {
  min-height: var(--header-h);
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 18px;
  align-items: center;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}
.brand-mark {
  width: 46px;
  height: 46px;
  border-radius: 15px;
  background: linear-gradient(135deg, rgba(108,125,255,.34), rgba(254,91,115,.26));
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
  overflow: hidden;
}
.brand-mark img { width: 30px; height: 30px; object-fit: contain; }
.brand-copy { min-width: 0; }
.brand-title { display: block; font-size: 16px; font-weight: 800; letter-spacing: -.02em; }
.brand-subtitle { display: block; margin-top: 2px; color: var(--muted); font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}
.nav a,
.mobile-nav a {
  color: var(--muted);
  transition: .22s ease;
}
.nav a {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
}
.nav a:hover,
.nav a.active {
  color: var(--text);
  background: rgba(255,255,255,.06);
  border-color: var(--line-strong);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.mobile-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--text);
  background: rgba(255,255,255,.04);
}
.mobile-menu {
  display: none;
  padding: 0 0 16px;
}
.mobile-menu.open { display: block; }
.mobile-nav {
  display: grid;
  gap: 10px;
  padding-top: 4px;
}
.mobile-nav a {
  display: block;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.04);
}
.mobile-nav a.active {
  color: var(--text);
  border-color: var(--line-strong);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .18s ease, background .22s ease, border-color .22s ease, box-shadow .22s ease;
  font-weight: 700;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  box-shadow: 0 18px 40px rgba(108,125,255,.22);
}
.btn-secondary {
  background: rgba(255,255,255,.04);
  border-color: var(--line-strong);
}
.btn-light {
  background: #fff;
  color: #08111f;
}
.btn-ghost {
  background: transparent;
  border-color: var(--line);
}

.hero {
  padding: 56px 0 48px;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(320px, .96fr);
  gap: 34px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(255,255,255,.05);
  color: var(--accent-3);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
}
.hero-copy h1 {
  margin: 18px 0 16px;
  font-size: clamp(36px, 6vw, 72px);
  line-height: 1;
  letter-spacing: -.05em;
}
.hero-copy p {
  margin: 0;
  color: var(--muted);
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.72;
  max-width: 720px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}
.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 14px;
  margin-top: 28px;
}

.hero-visual {
  position: relative;
  min-height: 560px;
}
.hero-art {
  position: absolute;
  inset: 0;
  overflow: hidden;
  border-radius: 40px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.01));
}
.hero-art::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(8,17,31,.06), rgba(8,17,31,.62)),
    radial-gradient(circle at top right, rgba(108,125,255,.16), transparent 30%);
  z-index: 1;
}
.hero-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-art.contain img { object-fit: contain; background: radial-gradient(circle at center, rgba(255,255,255,.06), transparent 60%); }
.floating-card {
  position: absolute;
  padding: 18px;
  border-radius: 24px;
  background: rgba(9,18,36,.84);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
  max-width: 240px;
  z-index: 2;
}
.floating-card.top-right { top: 22px; right: 22px; }
.floating-card.bottom-left { left: 22px; bottom: 22px; }
.floating-kicker {
  color: var(--accent-3);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.floating-title {
  margin-top: 8px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -.03em;
}
.floating-text {
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.section { padding: var(--section-y) 0; }
.section.compact { padding-top: 52px; padding-bottom: 52px; }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 20px;
  margin-bottom: 28px;
}
.section-head h2 {
  margin: 14px 0 0;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.06;
  letter-spacing: -.04em;
}
.section-head p {
  margin: 0;
  max-width: 660px;
  color: var(--muted);
  line-height: 1.7;
  font-size: 16px;
}

.stat-card,
.feature-card,
.platform-card,
.showcase-card,
.device-card,
.download-card,
.support-card,
.quick-card,
.step,
.info-card,
.panel,
.notice-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.stat-card { padding: 18px; }
.stat-value {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: -.03em;
}
.stat-label {
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 18px; }

.card-kicker {
  color: var(--accent-3);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.feature-card,
.platform-card,
.quick-card,
.device-card,
.download-card,
.support-card,
.notice-card { padding: 22px; }
.feature-card h3,
.platform-card h3,
.quick-card h3,
.support-card h3 { margin: 14px 0 10px; font-size: 20px; }
.feature-card p,
.platform-card p,
.quick-card p,
.support-card p,
.download-card p,
.device-card p,
.notice-card p,
.step p,
.panel p { margin: 0; color: var(--muted); line-height: 1.68; }

.feature-thumb {
  aspect-ratio: 16/10;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  margin-bottom: 16px;
}
.feature-thumb img { width: 100%; height: 100%; object-fit: cover; }

.platform-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 18px; }
.platform-card {
  position: relative;
  overflow: hidden;
}
.platform-card::after {
  content: "";
  position: absolute;
  inset: auto auto -60px -40px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(108,125,255,.16), transparent 66%);
  pointer-events: none;
}
.platform-title-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}
.platform-chip {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}
.platform-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.screenshot-strip {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 20px;
}
.showcase-card { padding: 22px; }
.showcase-main {
  margin-top: 18px;
  aspect-ratio: 16/10;
  border-radius: 26px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
}
.showcase-main img { width: 100%; height: 100%; object-fit: cover; }
.thumb-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 14px;
  margin-top: 12px;
}
.thumb-grid img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: 18px;
  border: 1px solid var(--line);
}

.device-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 20px; }
.device-list { display: grid; gap: 14px; margin-top: 16px; }
.device-item {
  display: flex;
  gap: 14px;
  align-items: start;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.06);
}
.device-dot {
  width: 12px;
  height: 12px;
  margin-top: 7px;
  flex: none;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.checks { display: grid; gap: 12px; margin-top: 16px; }
.check {
  display: flex;
  gap: 12px;
  align-items: start;
  color: var(--muted);
}
.check strong {
  display: block;
  color: var(--text);
  margin-bottom: 4px;
}
.check-mark {
  width: 24px;
  height: 24px;
  flex: none;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(107,226,167,.14);
  border: 1px solid rgba(107,226,167,.3);
  color: var(--success);
  margin-top: 2px;
  font-size: 14px;
}

.steps { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
.step { padding: 24px; }
.step-number {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 800;
  background: rgba(108,125,255,.16);
  border: 1px solid rgba(108,125,255,.32);
  color: var(--accent-3);
}
.step h3 { margin: 16px 0 10px; }

.download-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 20px; }
.actions,
.card-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }
.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}
.inline-note {
  margin-top: 16px;
  padding: 13px 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.04);
  color: var(--muted);
  line-height: 1.65;
}
.quick-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
.support-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }

.copy-feedback {
  display: inline-flex;
  min-height: 20px;
  margin-top: 10px;
  font-size: 14px;
  color: var(--success);
}

.cta-band {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 30px;
  border-radius: 32px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(135deg, rgba(108,125,255,.16), rgba(254,91,115,.10));
  box-shadow: var(--shadow);
}
.cta-band h3 {
  margin: 0 0 8px;
  font-size: clamp(24px, 4vw, 38px);
}
.cta-band p {
  margin: 0;
  max-width: 720px;
  color: var(--muted);
  line-height: 1.68;
}



.hero-actions-index {
  display: grid;
  gap: 14px;
  align-items: stretch;
}
.hero-actions-index > .btn-primary {
  width: 100%;
}
.hero-actions-split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 14px;
}
.hero-actions-split .btn {
  width: 100%;
}

.carousel {
  --carousel-gap: 18px;
  --carousel-visible: 1;
  position: relative;
}
.carousel-frame {
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: 6px;
}
.carousel-frame::-webkit-scrollbar { display: none; }
.carousel-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: calc((100% - (var(--carousel-gap) * (var(--carousel-visible) - 1))) / var(--carousel-visible));
  gap: var(--carousel-gap);
  align-items: stretch;
}
.carousel-track > * {
  min-width: 0;
  scroll-snap-align: start;
  height: 100%;
}
.carousel-track .feature-card,
.carousel-track .support-card,
.carousel-track .quick-card,
.carousel-track .platform-card {
  height: 100%;
}
.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 18px;
}
.carousel-navs {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.carousel-nav {
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255,255,255,.04);
  color: var(--text);
  display: inline-grid;
  place-items: center;
  cursor: pointer;
  transition: transform .18s ease, background .22s ease, border-color .22s ease, opacity .22s ease;
}
.carousel-nav:hover:not(:disabled) {
  transform: translateY(-1px);
  background: rgba(255,255,255,.08);
  border-color: var(--line-strong);
}
.carousel-nav:disabled {
  opacity: .42;
  cursor: default;
}
.carousel-dots {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 10px;
}
.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  border: 0;
  padding: 0;
  background: rgba(255,255,255,.18);
  cursor: pointer;
  transition: width .22s ease, background .22s ease, opacity .22s ease;
}
.carousel-dot.active {
  width: 24px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.device-carousel .carousel-controls {
  margin-top: 14px;
}
.device-carousel .carousel-nav {
  width: 40px;
  height: 40px;
  border-radius: 14px;
}
.device-carousel .carousel-frame {
  padding-top: 16px;
}
.device-carousel .carousel-track {
  --carousel-gap: 14px;
}
.device-carousel .device-item {
  height: 100%;
  min-height: 146px;
}

.site-footer {
  margin-top: 36px;
  padding: 16px 0 28px;
  background: rgba(5, 10, 18, .72);
  border-top: 1px solid var(--line);
}
.footer-grid > div {
  padding: 22px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,.02));
  backdrop-filter: blur(16px);
}
.footer-grid > div:first-child {
  background: linear-gradient(180deg, rgba(11, 23, 48, .92), rgba(10, 18, 36, .84));
}
.footer-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 12px;
}
.footer-links a {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 10px 14px;
  border-radius: 16px;
  color: var(--muted);
  border: 1px solid var(--line);
  background: rgba(255,255,255,.04);
  transition: transform .18s ease, color .18s ease, border-color .18s ease, background .18s ease;
}
.footer-links a:hover {
  color: var(--text);
  background: rgba(255,255,255,.07);
  border-color: var(--line-strong);
  transform: translateY(-1px);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.35fr .7fr .85fr;
  gap: 22px;
  padding: 32px 0;
}
.footer-grid h4 { margin: 0 0 14px; }
.footer-note { color: var(--muted); line-height: 1.65; }

.muted { color: var(--muted); }
.center { text-align: center; }
.hide-desktop { display: none !important; }

[data-app-view] {
  opacity: 1;
  transform: translateY(0);
  transition: opacity .24s ease, transform .24s ease;
}
[data-app-view].is-swapping {
  opacity: .32;
  transform: translateY(14px);
}

@media (max-width: 1180px) {
  .platform-grid,
  .grid-4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .hero-grid,
  .device-grid,
  .screenshot-strip,
  .footer-grid { grid-template-columns: 1fr; }
  .support-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .hero-visual { min-height: 520px; }
}
@media (max-width: 920px) {
  .nav,
  .header-actions .btn-secondary:not(.always-show) { display: none; }
  .mobile-toggle { display: inline-grid; place-items: center; }
  .hero { padding-top: 34px; }
  .hero-meta,
  .grid-3,
  .grid-2,
  .download-grid,
  .steps,
  .quick-grid,
  .support-grid,
  .platform-grid { grid-template-columns: 1fr; }
  .section-head { display: block; }
  .section-head p { margin-top: 14px; }
  .hero-visual { min-height: 420px; }
  .cta-band { display: block; }
  .cta-band .btn { margin-top: 18px; }
}
@media (max-width: 620px) {
  :root { --section-y: 64px; --header-h: 70px; }
  .container { width: min(var(--container), calc(100% - 20px)); }
  .header-row { gap: 12px; }
  .brand-title { font-size: 14px; }
  .brand-subtitle { font-size: 11px; }
  .btn { min-height: 46px; padding: 0 18px; }
  .hero-copy h1 { font-size: clamp(32px, 12vw, 48px); }
  .hero-copy p { font-size: 16px; }
  .hero-visual { min-height: 360px; }
  .hero-art { border-radius: 28px; }
  .floating-card { padding: 14px; border-radius: 18px; max-width: 170px; }
  .floating-card.top-right { top: 14px; right: 14px; }
  .floating-card.bottom-left { left: 14px; bottom: 14px; }
  .feature-card,
  .platform-card,
  .device-card,
  .showcase-card,
  .download-card,
  .support-card,
  .quick-card,
  .notice-card,
  .step { padding: 18px; }
  .showcase-main { aspect-ratio: 4/5; }
  .thumb-grid img { aspect-ratio: 1 / 1.18; }
  .hide-mobile { display: none !important; }
  .hide-desktop { display: block !important; }
}
@media (max-width: 420px) {
  .header-actions .btn-primary {
    min-width: 0;
    padding-inline: 16px;
  }
  .hero-actions,
  .actions,
  .card-actions,
  .platform-actions { gap: 10px; }
  .btn { width: 100%; }
}


@media (max-width: 920px) {
  .footer-links { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .carousel { --carousel-gap: 14px; }
  .hero-actions-split { gap: 12px; }
  .carousel-controls {
    gap: 12px;
    align-items: center;
  }
  .carousel-nav { width: 42px; height: 42px; border-radius: 14px; }
  .footer-grid > div { padding: 18px; }
}
@media (max-width: 480px) {
  .footer-links { grid-template-columns: 1fr; }
}
@media (max-width: 420px) {
  .hero-actions-index,
  .hero-actions-split { gap: 10px; }
  .hero-actions-split { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .hero-actions-split .btn {
    min-height: 44px;
    padding-inline: 10px;
    font-size: 15px;
  }
  .carousel-controls {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* --- Modern refinement pack --- */
html { scroll-padding-top: calc(var(--header-h) + 18px); }
body { text-rendering: optimizeLegibility; }

a:focus-visible,
button:focus-visible {
  outline: 2px solid rgba(141,216,255,.9);
  outline-offset: 3px;
}

.site-header {
  box-shadow: 0 10px 36px rgba(0, 0, 0, .18);
}
.site-header::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(141,216,255,.2), transparent);
}
.nav {
  padding: 8px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.06);
  background: rgba(255,255,255,.03);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04);
}
.nav a {
  position: relative;
  overflow: hidden;
}
.nav a::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(108,125,255,.22), rgba(254,91,115,.14));
  opacity: 0;
  transition: opacity .22s ease;
}
.nav a span,
.mobile-nav a span { position: relative; z-index: 1; }
.nav a:hover::before,
.nav a.active::before { opacity: 1; }
.mobile-menu {
  padding-top: 10px;
}
.mobile-nav {
  padding: 12px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(8,15,27,.92);
  box-shadow: var(--shadow);
}

.hero::after {
  content: "";
  display: block;
  width: min(100%, 1240px);
  height: 1px;
  margin: 44px auto 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.09), transparent);
}
.hero-pills {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 14px;
  margin-top: 18px;
}
.hero-pill {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border-radius: 22px;
  border: 1px solid rgba(255,255,255,.08);
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  transition: transform .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
}
.hero-pill strong {
  font-size: 15px;
  letter-spacing: -.01em;
}
.hero-pill span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}
.hero-pill:hover {
  transform: translateY(-3px);
  border-color: rgba(141,216,255,.24);
  background: linear-gradient(180deg, rgba(108,125,255,.12), rgba(255,255,255,.04));
  box-shadow: 0 18px 38px rgba(0,0,0,.18);
}

.stat-card,
.feature-card,
.platform-card,
.showcase-card,
.device-card,
.download-card,
.support-card,
.quick-card,
.step,
.info-card,
.panel,
.notice-card {
  position: relative;
  overflow: hidden;
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease, background .22s ease;
}
.stat-card::before,
.feature-card::before,
.platform-card::before,
.showcase-card::before,
.device-card::before,
.download-card::before,
.support-card::before,
.quick-card::before,
.step::before,
.info-card::before,
.panel::before,
.notice-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,.04), transparent 40%);
  pointer-events: none;
}
.stat-card:hover,
.feature-card:hover,
.platform-card:hover,
.showcase-card:hover,
.device-card:hover,
.download-card:hover,
.support-card:hover,
.quick-card:hover,
.step:hover,
.info-card:hover,
.panel:hover,
.notice-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255,255,255,.14);
  box-shadow: 0 30px 80px rgba(0,0,0,.34);
}
.feature-thumb img,
.hero-art img,
.showcase-main img,
.thumb-grid img,
.gallery-card-image img,
.gallery-preview img {
  transition: transform .45s ease;
}
.feature-card:hover .feature-thumb img,
.hero-art:hover img,
.gallery-card:hover .gallery-card-image img,
.gallery-preview:hover img {
  transform: scale(1.03);
}

.gallery-head { margin-bottom: 24px; }
.gallery-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(340px, .97fr);
  gap: 20px;
  align-items: stretch;
}
.gallery-stage {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.gallery-stage-top {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 18px;
}
.gallery-counter {
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
}
.gallery-expand {
  flex: none;
}
.gallery-preview {
  position: relative;
  width: 100%;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 28px;
  overflow: hidden;
  background: rgba(255,255,255,.03);
  cursor: zoom-in;
  aspect-ratio: 16 / 10;
}
.gallery-preview::after,
.hero-art[data-lightbox-ready]::after {
  content: "Открыть";
  position: absolute;
  right: 16px;
  bottom: 16px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(9,18,36,.78);
  border: 1px solid rgba(255,255,255,.12);
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .02em;
  backdrop-filter: blur(16px);
}
.gallery-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.gallery-caption {
  display: grid;
  gap: 8px;
  margin-top: 18px;
}
.gallery-caption h3 {
  margin: 0;
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: -.03em;
}
.gallery-caption p {
  margin: 0;
  line-height: 1.72;
}
.gallery-side {
  min-width: 0;
}
.gallery-carousel .carousel-frame {
  padding-top: 0;
}
.gallery-card {
  display: grid;
  grid-template-columns: 112px minmax(0,1fr);
  align-items: center;
  gap: 14px;
  width: 100%;
  min-height: 134px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255,255,255,.04);
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: transform .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
}
.gallery-card:hover,
.gallery-card.active {
  transform: translateY(-2px);
  border-color: rgba(141,216,255,.24);
  background: linear-gradient(180deg, rgba(108,125,255,.12), rgba(255,255,255,.05));
  box-shadow: 0 20px 40px rgba(0,0,0,.2);
}
.gallery-card-image {
  position: relative;
  display: block;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.03);
  aspect-ratio: 4 / 3;
}
.gallery-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.gallery-card-copy {
  display: grid;
  gap: 6px;
  min-width: 0;
}
.gallery-card-copy strong {
  font-size: 17px;
  letter-spacing: -.02em;
}
.gallery-card-copy span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.hero-art[data-lightbox-ready] {
  cursor: zoom-in;
}
.hero-art[data-lightbox-ready]::after {
  z-index: 3;
}
.hero-art[data-lightbox-ready] img,
.showcase-main[data-lightbox-ready] img,
.thumb-grid img[data-lightbox-ready] {
  cursor: zoom-in;
}

.lightbox {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .22s ease, visibility .22s ease;
  z-index: 120;
}
.lightbox.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4,8,16,.82);
  backdrop-filter: blur(18px);
}
.lightbox-dialog {
  position: relative;
  width: min(1120px, 100%);
  max-height: calc(100vh - 40px);
  border-radius: 28px;
  border: 1px solid rgba(255,255,255,.1);
  background: linear-gradient(180deg, rgba(9,18,36,.96), rgba(7,13,24,.96));
  box-shadow: 0 40px 100px rgba(0,0,0,.44);
  overflow: hidden;
}
.lightbox-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.02);
}
.lightbox-meta {
  min-width: 0;
}
.lightbox-title {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.02em;
}
.lightbox-counter,
.lightbox-description {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}
.lightbox-counter { margin-top: 4px; }
.lightbox-stage {
  position: relative;
  padding: 20px 72px 22px;
}
.lightbox-figure {
  margin: 0;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.03);
}
.lightbox-figure img {
  width: 100%;
  max-height: calc(100vh - 230px);
  object-fit: contain;
  background: radial-gradient(circle at center, rgba(255,255,255,.03), transparent 60%);
}
.lightbox-close,
.lightbox-nav {
  width: 48px;
  height: 48px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 16px;
  background: rgba(255,255,255,.04);
  color: var(--text);
  display: inline-grid;
  place-items: center;
  cursor: pointer;
  transition: transform .2s ease, background .2s ease, border-color .2s ease, opacity .2s ease;
}
.lightbox-close:hover,
.lightbox-nav:hover:not(:disabled) {
  transform: translateY(-2px);
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.18);
}
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}
.lightbox-nav:hover:not(:disabled) {
  transform: translateY(calc(-50% - 2px));
}
.lightbox-nav.prev { left: 18px; }
.lightbox-nav.next { right: 18px; }
.lightbox-nav:disabled { opacity: .36; cursor: default; }
body.lightbox-open { overflow: hidden; }

@media (max-width: 1180px) {
  .hero-pills,
  .gallery-shell { grid-template-columns: 1fr; }
}
@media (max-width: 920px) {
  .nav { padding: 0; border: 0; background: transparent; box-shadow: none; }
  .gallery-stage-top {
    flex-direction: column;
    align-items: flex-start;
  }
  .gallery-expand { width: 100%; }
}
@media (max-width: 620px) {
  .hero-pills { gap: 10px; }
  .hero-pill { padding: 14px 16px; border-radius: 18px; }
  .gallery-preview { border-radius: 22px; aspect-ratio: 4 / 5; }
  .gallery-card { grid-template-columns: 88px minmax(0,1fr); min-height: 116px; padding: 12px; border-radius: 20px; }
  .gallery-card-copy strong { font-size: 16px; }
  .gallery-card-copy span { font-size: 13px; }
  .lightbox { padding: 10px; }
  .lightbox-dialog { border-radius: 22px; }
  .lightbox-toolbar { padding: 14px; }
  .lightbox-stage { padding: 14px 14px 18px; }
  .lightbox-nav {
    position: static;
    transform: none;
  }
  .lightbox-nav:hover:not(:disabled) { transform: translateY(-2px); }
  .lightbox-stage-controls {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-top: 14px;
  }
}

.hero-art { isolation: isolate; z-index: 0; }


/* --- interactive upgrades: tabs, footer, desktop swipe, synced gallery --- */
.carousel-frame {
  cursor: grab;
  touch-action: pan-y pinch-zoom;
  user-select: none;
}
.carousel-frame.is-dragging {
  cursor: grabbing;
  scroll-behavior: auto;
}
.carousel-frame.is-dragging * {
  cursor: grabbing;
}

.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: nowrap;
}
.carousel-dots {
  justify-content: flex-start;
  flex: 1 1 auto;
}
.carousel-navs {
  margin-left: auto;
  flex: none;
}
.gallery-carousel .carousel-controls {
  padding-right: 2px;
}

.platform-tabs {
  position: relative;
  display: grid;
  gap: 22px;
  padding: 24px;
  border-radius: 32px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(11, 23, 48, .76), rgba(10, 18, 36, .62));
  box-shadow: var(--shadow);
  overflow: hidden;
}
.platform-tabs::before {
  content: "";
  position: absolute;
  inset: -10% auto auto -6%;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(108,125,255,.18), transparent 70%);
  pointer-events: none;
}
.platform-tabs::after {
  content: "";
  position: absolute;
  inset: auto -8% -16% auto;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(254,91,115,.16), transparent 68%);
  pointer-events: none;
}
.platform-tab-nav,
.platform-tab-panels,
.platform-tab-extra {
  position: relative;
  z-index: 1;
}
.platform-tab-nav {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 12px;
}
.platform-tab {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255,255,255,.04);
  color: var(--muted);
  text-align: left;
  transition: transform .22s ease, border-color .22s ease, background .22s ease, color .22s ease, box-shadow .22s ease;
}
.platform-tab:hover,
.platform-tab:focus-visible {
  transform: translateY(-1px);
  border-color: var(--line-strong);
  background: rgba(255,255,255,.06);
  color: var(--text);
}
.platform-tab.active {
  color: var(--text);
  border-color: rgba(141,216,255,.24);
  background: linear-gradient(135deg, rgba(108,125,255,.18), rgba(254,91,115,.12));
  box-shadow: 0 18px 40px rgba(0,0,0,.2);
}
.platform-tab-icon {
  width: 44px;
  height: 44px;
  border-radius: 15px;
  display: grid;
  place-items: center;
  flex: none;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.08);
  color: var(--accent-3);
}
.platform-tab.active .platform-tab-icon {
  background: rgba(255,255,255,.1);
  color: #fff;
}
.platform-tab-icon svg {
  width: 22px;
  height: 22px;
}
.platform-tab-copy {
  min-width: 0;
  display: grid;
  gap: 4px;
}
.platform-tab-copy strong {
  font-size: 16px;
  letter-spacing: -.02em;
}
.platform-tab-copy small {
  color: inherit;
  opacity: .84;
  font-size: 13px;
}

.platform-tab-panels {
  display: grid;
  min-width: 0;
}
.platform-pane {
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0,1.08fr) minmax(320px,.92fr);
  gap: 24px;
  align-items: stretch;
  padding: 22px;
  border-radius: 28px;
  border: 1px solid rgba(255,255,255,.08);
  background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.02));
  min-height: 360px;
}
.platform-pane[hidden] { display: none !important; }
.platform-pane-kicker {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--accent-3);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.platform-pane h3 {
  margin: 0;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.02;
  letter-spacing: -.04em;
}
.platform-pane p {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.72;
}
.platform-pane-points {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}
.platform-point {
  display: grid;
  grid-template-columns: 14px 1fr;
  gap: 10px;
  align-items: start;
  color: var(--text);
}
.platform-point span {
  color: var(--accent-2);
  font-weight: 800;
  line-height: 1.4;
}
.platform-point div {
  color: var(--muted);
  line-height: 1.6;
}
.platform-pane-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.platform-pane-media {
  position: relative;
  display: block;
  width: 100%;
  min-height: 100%;
  padding: 0;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 28px;
  overflow: hidden;
  background: rgba(255,255,255,.04);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04);
}
.platform-pane-media::after {
  content: "Открыть";
  position: absolute;
  top: 18px;
  right: 18px;
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(5,10,18,.7);
  border: 1px solid rgba(255,255,255,.1);
  font-weight: 700;
}
.platform-pane-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .35s ease;
}
.platform-pane-media:hover img,
.platform-pane-media:focus-visible img {
  transform: scale(1.03);
}
.platform-tab-extra {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.platform-extra-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.04);
  color: var(--muted);
  transition: transform .18s ease, color .18s ease, border-color .18s ease, background .18s ease;
}
.platform-extra-link:hover {
  color: var(--text);
  background: rgba(255,255,255,.07);
  border-color: var(--line-strong);
  transform: translateY(-1px);
}

.site-footer {
  margin-top: 40px;
  padding: 18px 0 30px;
  background: linear-gradient(180deg, rgba(5,10,18,.62), rgba(5,10,18,.82));
  border-top: 1px solid var(--line);
}
.footer-shell {
  display: grid;
  gap: 18px;
}
.footer-card {
  padding: 22px;
  border-radius: 28px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}
.footer-brand-card {
  background: linear-gradient(135deg, rgba(11,23,48,.94), rgba(12,22,40,.82));
}
.footer-card-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.footer-card-head h4 {
  margin: 0;
  font-size: 18px;
}
.footer-card-icon {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.08);
  color: var(--accent-3);
  font-weight: 800;
}
.footer-action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}
.footer-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.04);
  color: var(--text);
}
.footer-chip-primary {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-color: transparent;
}
.footer-link-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 12px;
}
.footer-link-grid a,
.footer-bottom-links a {
  display: flex;
  align-items: center;
  min-height: 50px;
  padding: 12px 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.04);
  color: var(--muted);
  transition: transform .18s ease, color .18s ease, border-color .18s ease, background .18s ease;
}
.footer-link-grid a:hover,
.footer-bottom-links a:hover {
  color: var(--text);
  background: rgba(255,255,255,.07);
  border-color: var(--line-strong);
  transform: translateY(-1px);
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 6px 4px 0;
  color: var(--muted);
  font-size: 14px;
}
.footer-bottom-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom-links a {
  min-height: 42px;
  padding: 10px 14px;
  border-radius: 14px;
}

@media (max-width: 1180px) {
  .platform-tab-nav,
  .footer-link-grid {
    grid-template-columns: repeat(2, minmax(0,1fr));
  }
  .platform-pane {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 920px) {
  .platform-tabs {
    padding: 18px;
    border-radius: 28px;
  }
  .platform-tab {
    padding: 14px;
  }
  .platform-tab-copy strong {
    font-size: 15px;
  }
  .platform-tab-copy small {
    font-size: 12px;
  }
  .carousel-controls {
    gap: 12px;
  }
}
@media (max-width: 620px) {
  .carousel-controls {
    align-items: center;
    gap: 10px;
  }
  .carousel-dots {
    gap: 8px;
  }
  .carousel-navs {
    gap: 8px;
  }
  .platform-tab-nav,
  .footer-link-grid {
    grid-template-columns: 1fr;
  }
  .platform-tab {
    padding: 13px 14px;
    border-radius: 20px;
  }
  .platform-tab-icon {
    width: 40px;
    height: 40px;
    border-radius: 14px;
  }
  .platform-pane {
    padding: 16px;
    gap: 16px;
    border-radius: 24px;
    min-height: 0;
  }
  .platform-pane p {
    font-size: 16px;
    line-height: 1.64;
  }
  .platform-pane-media {
    min-height: 260px;
    border-radius: 22px;
  }
  .platform-pane-media::after {
    top: 12px;
    right: 12px;
    padding: 8px 12px;
  }
  .platform-tab-extra,
  .footer-action-row,
  .footer-bottom,
  .footer-bottom-links {
    display: grid;
  }
  .footer-shell {
    gap: 14px;
  }
  .footer-card {
    padding: 18px;
    border-radius: 24px;
  }
  .footer-bottom {
    padding: 0;
  }
  .footer-bottom-links {
    gap: 10px;
  }
}


/* --- perfectionist polish v3 --- */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255,255,255,.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.015) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(circle at center, black 26%, transparent 90%);
  opacity: .35;
  z-index: -2;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 50% -10%, rgba(141,216,255,.07), transparent 30%);
  z-index: -2;
}

.site-header {
  background: rgba(5,10,18,.62);
  box-shadow: 0 14px 40px rgba(0,0,0,.14);
}
.header-row {
  min-height: calc(var(--header-h) + 6px);
  padding: 10px 0;
}
.nav {
  padding: 8px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.06);
  background: linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,.02));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04);
}
.nav a {
  padding: 10px 16px;
}
.nav a.active {
  background: linear-gradient(135deg, rgba(108,125,255,.18), rgba(254,91,115,.12));
  border-color: rgba(141,216,255,.18);
  box-shadow: 0 12px 24px rgba(0,0,0,.12);
}
.mobile-toggle {
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04);
}
.btn {
  min-height: 52px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.035);
}
.btn-secondary,
.btn-ghost {
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025));
}
.hero {
  padding: 40px 0 44px;
}
.hero-grid {
  position: relative;
  padding: 34px;
  border-radius: 36px;
  border: 1px solid rgba(255,255,255,.08);
  background: linear-gradient(180deg, rgba(12,22,42,.78), rgba(9,17,32,.58));
  box-shadow: 0 26px 80px rgba(0,0,0,.24);
  overflow: hidden;
}
.hero-grid::before {
  content: "";
  position: absolute;
  inset: -16% auto auto -10%;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(108,125,255,.22), transparent 70%);
  pointer-events: none;
}
.hero-grid::after {
  content: "";
  position: absolute;
  inset: auto -8% -18% auto;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(254,91,115,.16), transparent 70%);
  pointer-events: none;
}
.hero-copy,
.hero-visual { position: relative; z-index: 1; }
.hero-visual {
  min-height: 520px;
}
.hero-art {
  border-radius: 32px;
  border: 1px solid rgba(255,255,255,.08);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,.32);
}
.hero-art::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,.06), transparent 22%);
  pointer-events: none;
  z-index: 1;
}
.hero-meta { gap: 16px; }
.stat-card {
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025));
}
.section-head {
  gap: 24px;
  margin-bottom: 32px;
}
.section-head > div { max-width: 760px; }
.section-head p { max-width: 560px; }
.feature-card,
.download-card,
.support-card,
.quick-card,
.step,
.notice-card,
.info-card,
.panel,
.platform-card,
.showcase-card,
.device-card,
.stat-card {
  box-shadow: 0 20px 56px rgba(0,0,0,.22);
}
.carousel-nav {
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.05);
}
.carousel-dot.active {
  box-shadow: 0 0 18px rgba(108,125,255,.32);
}
.gallery-stage {
  padding: 22px;
  border-radius: 32px;
  border: 1px solid rgba(255,255,255,.08);
  background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.02));
  box-shadow: 0 20px 60px rgba(0,0,0,.22);
}
.gallery-preview {
  border-radius: 30px;
  box-shadow: 0 24px 60px rgba(0,0,0,.22);
}
.gallery-card {
  min-height: 126px;
  background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.02));
}
.gallery-card.active {
  border-color: rgba(141,216,255,.28);
}
.gallery-caption p { color: var(--muted); }

.platform-tabs {
  grid-template-columns: 320px minmax(0,1fr);
  gap: 24px;
  align-items: start;
}
.platform-tab-nav {
  grid-template-columns: 1fr;
  align-self: start;
  position: sticky;
  top: calc(var(--header-h) + 24px);
  padding: 8px;
  border-radius: 26px;
  border: 1px solid rgba(255,255,255,.07);
  background: linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,.018));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.03);
}
.platform-tab-panels,
.platform-tab-extra {
  grid-column: 2;
}
.platform-tab {
  position: relative;
  min-height: 88px;
  padding: 16px 16px 16px 18px;
  border-radius: 22px;
  overflow: hidden;
}
.platform-tab::before {
  content: "";
  position: absolute;
  inset: 10px auto 10px 10px;
  width: 3px;
  border-radius: 999px;
  background: transparent;
  transition: background .22s ease, box-shadow .22s ease;
}
.platform-tab.active::before {
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 18px rgba(108,125,255,.28);
}
.platform-tab.active {
  background: linear-gradient(135deg, rgba(108,125,255,.18), rgba(254,91,115,.12));
}
.platform-pane {
  min-height: 410px;
  padding: 24px;
  box-shadow: 0 24px 72px rgba(0,0,0,.22);
}
.platform-pane-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}
.platform-pane-media {
  min-width: 0;
  min-height: auto;
  aspect-ratio: 16 / 11;
  box-shadow: 0 22px 60px rgba(0,0,0,.24);
}
.platform-pane-media::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,.06), transparent 26%);
  pointer-events: none;
  z-index: 1;
}
.platform-pane-media::after {
  z-index: 2;
}
.platform-pane-media img {
  position: relative;
  z-index: 0;
}
.platform-tab-extra {
  padding-left: 2px;
}
.platform-extra-link {
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025));
}

.site-footer {
  margin-top: 56px;
  padding: 24px 0 34px;
  background: linear-gradient(180deg, rgba(5,10,18,.38), rgba(5,10,18,.84));
}
.footer-shell {
  gap: 20px;
}
.footer-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 28px 30px;
  border-radius: 32px;
  border: 1px solid rgba(255,255,255,.08);
  background: linear-gradient(135deg, rgba(11,23,48,.92), rgba(13,23,42,.72));
  box-shadow: 0 24px 80px rgba(0,0,0,.26);
  overflow: hidden;
  position: relative;
}
.footer-cta::before {
  content: "";
  position: absolute;
  inset: -15% auto auto -6%;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(108,125,255,.2), transparent 70%);
  pointer-events: none;
}
.footer-cta::after {
  content: "";
  position: absolute;
  inset: auto -8% -20% auto;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(254,91,115,.16), transparent 70%);
  pointer-events: none;
}
.footer-cta-copy,
.footer-cta-actions {
  position: relative;
  z-index: 1;
}
.footer-cta-copy h3 {
  margin: 16px 0 10px;
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.05;
  letter-spacing: -.04em;
}
.footer-cta-copy p {
  margin: 0;
  max-width: 740px;
  color: var(--muted);
  line-height: 1.72;
}
.footer-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
}
.footer-grid {
  align-items: stretch;
}
.footer-card {
  padding: 24px;
  border-radius: 30px;
  box-shadow: 0 22px 70px rgba(0,0,0,.22);
}
.footer-brand-card {
  position: relative;
  overflow: hidden;
}
.footer-brand-card::before {
  content: "";
  position: absolute;
  inset: auto -10% -25% auto;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(108,125,255,.16), transparent 72%);
  pointer-events: none;
}
.footer-mini-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 12px;
  margin-top: 20px;
}
.footer-stat {
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.04);
  display: grid;
  gap: 4px;
}
.footer-stat strong {
  font-size: 15px;
  letter-spacing: -.01em;
}
.footer-stat span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}
.footer-card-icon {
  color: var(--accent-3);
}
.footer-card-icon svg,
.footer-link-icon svg {
  width: 20px;
  height: 20px;
  display: block;
}
.footer-link-grid {
  gap: 12px;
}
.footer-link-grid a,
.footer-bottom-links a {
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025));
}
.footer-link-card {
  display: grid !important;
  grid-template-columns: 42px minmax(0,1fr);
  gap: 12px;
  align-items: center;
}
.footer-link-card-wide {
  grid-column: 1 / -1;
}
.footer-link-icon {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.08);
  color: var(--accent-3);
}
.footer-link-copy {
  min-width: 0;
  display: grid;
  gap: 3px;
}
.footer-link-copy strong {
  color: var(--text);
  font-size: 15px;
  letter-spacing: -.01em;
}
.footer-link-copy small {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}
.footer-chip {
  min-height: 50px;
  padding: 0 20px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04);
}
.footer-bottom {
  padding-top: 6px;
  border-top: 1px solid rgba(255,255,255,.06);
}

@media (max-width: 1180px) {
  .hero-grid {
    padding: 26px;
  }
  .footer-cta {
    padding: 24px;
  }
}
@media (max-width: 1024px) {
  .platform-tabs {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .platform-tab-nav,
  .platform-tab-panels,
  .platform-tab-extra {
    grid-column: auto;
  }
  .platform-tab-nav {
    position: relative;
    top: auto;
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(240px, 76vw);
    overflow-x: auto;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
    padding: 0 2px 8px;
    border: 0;
    background: transparent;
    box-shadow: none;
  }
  .platform-tab-nav::-webkit-scrollbar { display: none; }
  .platform-tab {
    scroll-snap-align: start;
  }
  .footer-cta {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-cta-actions {
    justify-content: flex-start;
  }
}
@media (max-width: 920px) {
  .hero-grid {
    padding: 22px;
    border-radius: 32px;
  }
}
@media (max-width: 620px) {
  .container { width: min(var(--container), calc(100% - 20px)); }
  .nav {
    display: none;
  }
  .hero {
    padding: 24px 0 28px;
  }
  .hero-grid {
    padding: 18px;
    border-radius: 28px;
  }
  .hero-visual {
    min-height: 360px;
  }
  .hero-art {
    border-radius: 24px;
  }
  .gallery-stage {
    padding: 14px;
    border-radius: 24px;
  }
  .gallery-preview {
    border-radius: 24px;
  }
  .platform-tab-nav {
    grid-auto-columns: minmax(220px, 84vw);
  }
  .platform-pane {
    padding: 16px;
  }
  .footer-cta {
    padding: 18px;
    border-radius: 26px;
  }
  .footer-cta-copy h3 {
    font-size: 26px;
  }
  .footer-card {
    padding: 18px;
    border-radius: 24px;
  }
  .footer-mini-stats {
    grid-template-columns: 1fr 1fr;
  }
  .footer-link-grid {
    grid-template-columns: 1fr;
  }
  .footer-link-card {
    grid-template-columns: 40px minmax(0,1fr);
    min-height: 0;
    padding: 14px;
  }
  .footer-link-icon {
    width: 40px;
    height: 40px;
    border-radius: 14px;
  }
  .footer-bottom {
    gap: 10px;
  }
}


/* --- precision mobile/desktop refinement v4 --- */
.site-header .mobile-toggle svg,
.footer-card-icon svg,
.footer-link-icon svg,
.mobile-nav-icon svg {
  width: 20px;
  height: 20px;
  display: block;
}
.site-header .mobile-toggle {
  display: none;
  place-items: center;
  padding: 0;
}
.site-header .mobile-toggle svg {
  width: 22px;
  height: 22px;
}
.mobile-menu {
  padding: 0 0 14px;
}
.mobile-menu-tabs,
.footer-mobile-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 10px;
  padding: 10px;
  border-radius: 22px;
  border: 1px solid rgba(255,255,255,.07);
  background: linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,.018));
}
.mobile-menu-tab,
.footer-mobile-tab {
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.06);
  background: rgba(255,255,255,.03);
  color: var(--muted);
  font-weight: 700;
  cursor: pointer;
  transition: .22s ease;
}
.mobile-menu-tab.active,
.footer-mobile-tab.active {
  color: var(--text);
  border-color: rgba(141,216,255,.18);
  background: linear-gradient(135deg, rgba(108,125,255,.18), rgba(254,91,115,.12));
  box-shadow: 0 12px 28px rgba(0,0,0,.16);
}
.mobile-menu-panel,
.footer-mobile-panel {
  margin-top: 12px;
}
.mobile-nav-grid,
.footer-mobile-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 12px;
}
.mobile-nav-card,
.footer-mobile-grid .footer-link-card {
  min-width: 0;
  min-height: 0;
  padding: 14px;
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,.08);
  background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.02));
  box-shadow: 0 16px 42px rgba(0,0,0,.18);
}
.mobile-nav-card {
  display: grid;
  grid-template-columns: 42px minmax(0,1fr);
  align-items: center;
  gap: 12px;
}
.mobile-nav-card.active {
  border-color: rgba(141,216,255,.2);
  background: linear-gradient(135deg, rgba(108,125,255,.18), rgba(254,91,115,.10));
}
.mobile-nav-card-wide,
.footer-mobile-grid .footer-link-card-wide {
  grid-column: 1 / -1;
}
.mobile-nav-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  color: var(--accent-3);
}
.mobile-nav-copy {
  display: grid;
  gap: 4px;
  min-width: 0;
}
.mobile-nav-copy strong {
  font-size: 15px;
  letter-spacing: -.02em;
}
.mobile-nav-copy small {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}
.footer-mobile-explorer {
  display: none;
}
.footer-cta-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 12px;
  align-items: stretch;
}
.footer-cta-actions .footer-chip {
  width: 100%;
  justify-content: center;
}
.footer-chip-share {
  grid-column: 1 / -1;
}
.footer-link-grid {
  grid-template-columns: repeat(2, minmax(0,1fr));
}
.desktop-footer-grid {
  grid-template-columns: 1.05fr .95fr .95fr;
}
.footer-bottom {
  align-items: center;
}

.hero-actions-index {
  grid-template-columns: repeat(2, minmax(0,1fr));
}
.hero-actions-index > .btn-primary,
.platform-pane-actions .btn,
.card-actions .btn,
.actions .btn {
  width: 100%;
}
.hero-actions-split {
  display: contents;
}
.hero-actions-index .hero-actions-split .btn:last-child {
  grid-column: 1 / -1;
}
.platform-pane-actions,
.actions,
.card-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 12px;
}

.gallery-shell {
  display: block;
}
.gallery-stage-modern {
  padding: 18px;
  border-radius: 34px;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 0%, rgba(108,125,255,.10), transparent 32%),
    radial-gradient(circle at 88% 100%, rgba(254,91,115,.10), transparent 28%),
    linear-gradient(180deg, rgba(12,22,42,.86), rgba(8,16,30,.82));
}
.gallery-stage-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}
.gallery-stage-labels {
  display: grid;
  gap: 6px;
}
.gallery-subline {
  color: var(--muted);
  font-size: 14px;
}
.gallery-stage-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}
.gallery-counter {
  min-width: 72px;
  min-height: 44px;
  padding: 0 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.04);
  color: var(--text);
}
.gallery-preview-shell {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.03);
  box-shadow: 0 24px 64px rgba(0,0,0,.26);
}
.gallery-preview {
  aspect-ratio: 16 / 10;
  border-radius: 0;
  box-shadow: none;
}
.gallery-preview::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4,10,20,.08), rgba(4,10,20,.04) 38%, rgba(4,10,20,.86));
  pointer-events: none;
}
.gallery-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.gallery-caption-overlay {
  position: absolute;
  inset: auto 18px 18px 18px;
  z-index: 2;
  padding: 18px 18px 16px;
  border-radius: 22px;
  border: 1px solid rgba(255,255,255,.08);
  background: linear-gradient(180deg, rgba(10,20,38,.64), rgba(8,15,28,.82));
  backdrop-filter: blur(14px);
  box-shadow: 0 18px 42px rgba(0,0,0,.22);
}
.gallery-caption-overlay h3 {
  margin: 8px 0 8px;
  font-size: clamp(22px, 3vw, 32px);
  letter-spacing: -.04em;
}
.gallery-caption-overlay p {
  margin: 0;
  max-width: min(720px, 92%);
  line-height: 1.62;
}
.gallery-caption-kicker {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.05);
  color: var(--accent-3);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.gallery-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 52px;
  height: 52px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(10,18,34,.68);
  backdrop-filter: blur(16px);
  color: var(--text);
  box-shadow: 0 16px 40px rgba(0,0,0,.20);
  cursor: pointer;
  transition: .22s ease;
}
.gallery-nav-btn:hover {
  transform: translateY(calc(-50% - 2px));
  background: rgba(16,25,44,.82);
}
.gallery-nav-prev { left: 16px; }
.gallery-nav-next { right: 16px; }
.gallery-rail-wrap {
  margin-top: 14px;
  padding-top: 4px;
}
.gallery-rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(220px, 24%);
  gap: 12px;
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 6px;
  scroll-snap-type: x proximity;
}
.gallery-rail::-webkit-scrollbar { display: none; }
.gallery-card {
  min-height: 104px;
  padding: 10px;
  border-radius: 22px;
  grid-template-columns: 86px minmax(0,1fr);
  gap: 12px;
  scroll-snap-align: start;
  box-shadow: none;
}
.gallery-card-image {
  aspect-ratio: 9 / 14;
  border-radius: 16px;
}
.gallery-card-copy {
  align-self: center;
}
.gallery-card-copy strong {
  font-size: 15px;
}
.gallery-card-copy span {
  font-size: 12px;
  line-height: 1.45;
}
.gallery-card.active {
  transform: translateY(-2px);
  background: linear-gradient(135deg, rgba(108,125,255,.16), rgba(254,91,115,.10));
  box-shadow: 0 16px 34px rgba(0,0,0,.18);
}

@media (max-width: 920px) {
  .site-header {
    backdrop-filter: blur(20px);
  }
  .header-row {
    grid-template-columns: minmax(0,1fr) auto;
    grid-template-areas:
      "brand toggle"
      "actions actions";
    gap: 12px;
    padding: 12px 0;
    align-items: center;
  }
  .brand { grid-area: brand; }
  .header-actions {
    grid-area: actions;
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 10px;
    width: 100%;
  }
  .site-header .mobile-toggle {
    grid-area: toggle;
    display: grid;
  }
  .header-actions .btn {
    width: 100%;
    min-height: 46px;
    padding-inline: 16px;
  }
  .header-actions .btn-primary,
  .header-actions .btn-secondary.always-show {
    display: inline-flex;
  }
  .hero-actions-index,
  .platform-pane-actions,
  .actions,
  .card-actions,
  .footer-cta-actions {
    grid-template-columns: repeat(2, minmax(0,1fr));
  }
  .footer-mobile-explorer {
    display: block;
  }
  .desktop-footer-grid {
    display: none;
  }
  .footer-bottom {
    padding-top: 0;
    border-top: 0;
  }
  .gallery-stage-modern {
    padding: 16px;
  }
  .gallery-preview {
    aspect-ratio: 10 / 13;
  }
  .gallery-caption-overlay {
    inset: auto 14px 14px 14px;
  }
  .gallery-caption-overlay p {
    max-width: 100%;
  }
  .gallery-nav-btn {
    width: 46px;
    height: 46px;
    border-radius: 16px;
  }
  .gallery-rail {
    grid-auto-columns: minmax(220px, 72vw);
  }
}

@media (max-width: 620px) {
  :root { --header-h: 64px; }
  .header-row {
    gap: 10px;
    padding: 10px 0 12px;
  }
  .brand {
    gap: 10px;
  }
  .brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 14px;
  }
  .brand-mark img {
    width: 28px;
    height: 28px;
  }
  .brand-title {
    font-size: 14px;
  }
  .brand-subtitle {
    font-size: 11px;
  }
  .site-header .mobile-toggle {
    width: 44px;
    height: 44px;
    border-radius: 14px;
  }
  .header-actions {
    grid-template-columns: repeat(2, minmax(0,1fr));
  }
  .header-actions .btn {
    min-height: 44px;
    font-size: 15px;
  }
  .hero-actions-index,
  .platform-pane-actions,
  .actions,
  .card-actions,
  .footer-cta-actions,
  .mobile-nav-grid,
  .footer-mobile-grid {
    grid-template-columns: repeat(2, minmax(0,1fr));
  }
  .hero-actions-index .hero-actions-split .btn:last-child,
  .footer-chip-share,
  .mobile-nav-card-wide,
  .footer-mobile-grid .footer-link-card-wide {
    grid-column: 1 / -1;
  }
  .hero-actions-index .btn,
  .platform-pane-actions .btn,
  .card-actions .btn,
  .actions .btn,
  .footer-cta-actions .footer-chip {
    min-height: 44px;
    font-size: 15px;
    padding-inline: 12px;
  }
  .footer-cta {
    gap: 16px;
  }
  .footer-cta-copy h3 {
    margin-top: 14px;
    font-size: clamp(24px, 8vw, 32px);
  }
  .footer-cta-copy p,
  .hero-copy p {
    font-size: 15px;
    line-height: 1.7;
  }
  .mobile-menu-tabs,
  .footer-mobile-tabs {
    padding: 8px;
    border-radius: 20px;
  }
  .mobile-menu-tab,
  .footer-mobile-tab {
    min-height: 42px;
    font-size: 14px;
  }
  .mobile-nav-card,
  .footer-mobile-grid .footer-link-card {
    padding: 12px;
    border-radius: 18px;
  }
  .mobile-nav-icon,
  .footer-mobile-grid .footer-link-icon {
    width: 38px;
    height: 38px;
    border-radius: 12px;
  }
  .mobile-nav-copy strong,
  .footer-mobile-grid .footer-link-copy strong {
    font-size: 14px;
  }
  .mobile-nav-copy small,
  .footer-mobile-grid .footer-link-copy small {
    font-size: 11px;
  }
  .gallery-stage-top {
    align-items: stretch;
    flex-direction: column;
  }
  .gallery-stage-actions {
    width: 100%;
    display: grid;
    grid-template-columns: minmax(0,1fr) auto;
  }
  .gallery-counter {
    min-height: 42px;
    justify-content: flex-start;
  }
  .gallery-expand {
    min-width: 0;
    width: auto;
  }
  .gallery-preview {
    aspect-ratio: 4 / 5;
  }
  .gallery-nav-btn {
    top: auto;
    bottom: 110px;
    transform: none;
    width: 42px;
    height: 42px;
    border-radius: 14px;
  }
  .gallery-nav-btn:hover {
    transform: translateY(-2px);
  }
  .gallery-nav-prev { left: 12px; }
  .gallery-nav-next { right: 12px; }
  .gallery-caption-overlay {
    inset: auto 12px 12px 12px;
    padding: 14px;
    border-radius: 18px;
  }
  .gallery-caption-overlay h3 {
    font-size: 22px;
  }
  .gallery-caption-overlay p {
    font-size: 14px;
  }
  .gallery-rail {
    grid-auto-columns: minmax(180px, 76vw);
  }
  .gallery-card {
    grid-template-columns: 74px minmax(0,1fr);
    min-height: 94px;
    border-radius: 18px;
  }
}

@media (max-width: 420px) {
  .header-actions .btn {
    font-size: 14px;
    padding-inline: 10px;
  }
  .hero-actions-index,
  .platform-pane-actions,
  .actions,
  .card-actions,
  .footer-cta-actions,
  .mobile-nav-grid,
  .footer-mobile-grid {
    gap: 10px;
  }
  .gallery-rail {
    grid-auto-columns: minmax(164px, 78vw);
  }
  .gallery-caption-overlay h3 {
    font-size: 20px;
  }
}


/* --- button flow corrections v4.1 --- */
.hero-actions-index {
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: 14px;
}
.hero-actions-index > .btn-primary {
  width: fit-content;
  max-width: 100%;
}
.hero-actions-split {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.hero-actions-split .btn {
  width: auto;
}
.platform-pane-actions,
.actions,
.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.platform-pane-actions .btn,
.actions .btn,
.card-actions .btn {
  width: auto;
}
.footer-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: stretch;
}
.footer-cta-actions .footer-chip {
  width: auto;
}
.footer-chip-share {
  grid-column: auto;
}

@media (max-width: 920px) {
  .hero-actions-index,
  .platform-pane-actions,
  .actions,
  .card-actions,
  .footer-cta-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
  }
  .hero-actions-index {
    gap: 12px;
  }
  .hero-actions-index > .btn-primary,
  .platform-pane-actions .btn,
  .actions .btn,
  .card-actions .btn,
  .footer-cta-actions .footer-chip {
    width: 100%;
  }
  .hero-actions-split {
    display: contents;
  }
}

@media (max-width: 620px) {
  .hero-actions-index .hero-actions-split .btn:last-child,
  .footer-chip-share {
    grid-column: 1 / -1;
  }
}


/* --- audited redesign v5: compact header, smart actions, modern gallery, cleaner footer --- */
body.mobile-menu-open { overflow: hidden; }

.header-actions-smart,
.hero-actions-smart,
.platform-pane-actions,
.actions,
.card-actions,
.footer-actions-smart {
  gap: 12px;
}

.hero-actions-home {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: stretch;
}
.hero-actions-home > .btn:first-child {
  min-width: min(280px, 100%);
}
.hero-actions-home > .btn-share-full {
  min-width: 168px;
}
.hero-actions-home > .btn {
  flex: 0 1 auto;
}

.site-header {
  background: rgba(5, 10, 18, .72);
}
.header-row {
  gap: 14px;
  padding: 10px 0;
}
.header-actions-smart {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}
.header-actions-smart .btn {
  min-height: 46px;
  padding-inline: 18px;
  border-radius: 17px;
}

.hero-grid {
  gap: 28px;
  padding: 30px;
}
.hero-copy h1 {
  max-width: 12ch;
}
.hero-copy p {
  max-width: 64ch;
}
.hero-meta {
  gap: 12px;
}
.hero-meta .stat-card {
  min-height: 100%;
}
.hero-pills {
  gap: 12px;
}
.hero-pill {
  min-height: 82px;
}

.platform-tabs {
  padding: 22px;
  gap: 20px;
}
.platform-tab-nav {
  width: 100%;
}
.platform-tab {
  min-height: 82px;
}
.platform-pane {
  gap: 22px;
  min-height: 390px;
}
.platform-pane-actions .btn,
.actions .btn,
.card-actions .btn,
.footer-actions-smart .footer-chip {
  min-height: 48px;
}

.gallery-stage-modern {
  padding: 22px;
  border-radius: 34px;
  background:
    radial-gradient(circle at 16% 0%, rgba(108,125,255,.11), transparent 34%),
    radial-gradient(circle at 86% 100%, rgba(254,91,115,.10), transparent 30%),
    linear-gradient(180deg, rgba(12,22,42,.90), rgba(8,16,30,.86));
}
.gallery-stage-top {
  align-items: flex-start;
  margin-bottom: 16px;
}
.gallery-stage-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.gallery-nav-group {
  display: inline-flex;
  gap: 8px;
}
.gallery-nav-group .gallery-nav-btn {
  position: static;
  transform: none;
  width: 44px;
  height: 44px;
  border-radius: 16px;
}
.gallery-nav-group .gallery-nav-btn:hover {
  transform: translateY(-1px);
}
.gallery-preview-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, .92fr);
  gap: 18px;
  padding: 18px;
  border-radius: 30px;
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.015));
}
.gallery-spotlight {
  min-width: 0;
  position: relative;
}
.gallery-preview {
  aspect-ratio: 16 / 11;
  border-radius: 28px;
  border: 1px solid rgba(255,255,255,.08);
  background:
    radial-gradient(circle at 50% 0%, rgba(141,216,255,.10), transparent 32%),
    linear-gradient(180deg, rgba(13,24,44,.76), rgba(7,14,24,.82));
  padding: 12px;
  overflow: hidden;
}
.gallery-preview::after {
  content: "";
  position: absolute;
  inset: auto 18px 18px auto;
  width: 72px;
  height: 6px;
  border-radius: 999px;
  background: rgba(255,255,255,.18);
  box-shadow: 0 0 0 1px rgba(255,255,255,.06);
}
.gallery-preview img {
  width: 100%;
  height: 100%;
  border-radius: 22px;
  object-fit: cover;
  box-shadow: 0 22px 56px rgba(0,0,0,.26);
}
.gallery-caption-panel {
  display: grid;
  align-content: start;
  gap: 14px;
  min-width: 0;
  padding: 18px;
  border-radius: 26px;
  border: 1px solid rgba(255,255,255,.08);
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.022));
}
.gallery-caption-panel h3 {
  margin: 0;
  font-size: clamp(24px, 2.4vw, 34px);
  letter-spacing: -.04em;
}
.gallery-caption-panel p {
  margin: 0;
  line-height: 1.68;
}
.gallery-progress {
  height: 8px;
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  overflow: hidden;
}
.gallery-progress span {
  display: block;
  height: 100%;
  width: 12.5%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 16px rgba(108,125,255,.26);
  transition: width .24s ease;
}
.gallery-tip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.gallery-tip {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.07);
  background: rgba(255,255,255,.04);
  color: var(--muted);
  font-size: 12px;
}
.gallery-rail-wrap {
  margin-top: 4px;
}
.gallery-rail {
  display: grid;
  gap: 10px;
  grid-auto-flow: row;
  grid-auto-columns: auto;
  overflow: auto;
  max-height: 380px;
  padding-right: 4px;
  scroll-snap-type: y proximity;
}
.gallery-card {
  min-height: 88px;
  padding: 10px;
  grid-template-columns: 72px minmax(0,1fr);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.018));
}
.gallery-card-image {
  aspect-ratio: 4 / 5;
  border-radius: 14px;
}
.gallery-card-copy strong {
  font-size: 14px;
}
.gallery-card-copy span {
  font-size: 12px;
  line-height: 1.45;
}
.gallery-card.active {
  transform: none;
  border-color: rgba(141,216,255,.24);
  background: linear-gradient(135deg, rgba(108,125,255,.16), rgba(254,91,115,.08));
  box-shadow: inset 0 0 0 1px rgba(141,216,255,.08), 0 16px 34px rgba(0,0,0,.18);
}

.footer-cta {
  gap: 18px;
  padding: 26px;
}
.footer-cta-copy h3 {
  max-width: 18ch;
}
.footer-cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}
.footer-cta-actions .footer-chip {
  min-height: 46px;
  padding-inline: 18px;
}
.footer-chip-share {
  min-width: 160px;
}
.footer-link-grid,
.mobile-nav-grid,
.footer-mobile-grid {
  align-items: stretch;
}
.footer-link-card,
.mobile-nav-card {
  min-height: 86px;
}
.footer-bottom-links a {
  min-height: 40px;
}

@media (max-width: 1180px) {
  .hero-grid {
    padding: 24px;
  }
  .gallery-preview-shell {
    grid-template-columns: 1fr;
  }
  .gallery-rail {
    grid-auto-flow: column;
    grid-auto-columns: minmax(210px, 34vw);
    max-height: none;
    overflow-x: auto;
    overflow-y: hidden;
    padding-bottom: 4px;
    scroll-snap-type: x proximity;
  }
}

@media (max-width: 920px) {
  .header-row {
    grid-template-columns: minmax(0,1fr) auto;
    grid-template-areas:
      'brand toggle'
      'actions actions';
    gap: 10px;
    padding: 10px 0 12px;
  }
  .brand { grid-area: brand; }
  .site-header .mobile-toggle {
    grid-area: toggle;
    width: 42px;
    height: 42px;
    border-radius: 14px;
  }
  .header-actions-smart {
    grid-area: actions;
    display: grid;
    grid-template-columns: minmax(0,.9fr) minmax(0,1.1fr);
    gap: 10px;
    width: 100%;
  }
  .header-actions-smart .btn {
    width: 100%;
    min-height: 44px;
    padding-inline: 12px;
    font-size: 14px;
  }
  .mobile-menu {
    padding-bottom: 12px;
  }
  .mobile-nav-grid,
  .footer-mobile-grid {
    gap: 10px;
  }
  .hero-grid {
    padding: 20px;
    border-radius: 28px;
    gap: 20px;
  }
  .hero-copy h1 {
    max-width: none;
  }
  .hero-meta {
    grid-template-columns: repeat(2, minmax(0,1fr));
  }
  .hero-meta > :last-child {
    grid-column: 1 / -1;
  }
  .hero-actions-home,
  .platform-pane-actions,
  .actions,
  .card-actions,
  .footer-actions-smart {
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 10px;
  }
  .hero-actions-home > .btn,
  .platform-pane-actions > .btn,
  .actions > .btn,
  .card-actions > .btn,
  .footer-actions-smart > .footer-chip {
    width: 100%;
    min-width: 0;
  }
  .hero-actions-home > .btn-share-full,
  .footer-actions-smart > .footer-chip-share {
    grid-column: 1 / -1;
  }
  .platform-tabs {
    grid-template-columns: 1fr;
    padding: 18px;
  }
  .platform-tab-nav {
    position: static;
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: minmax(180px, 68vw);
    overflow-x: auto;
    padding: 0 0 4px;
    border: 0;
    background: transparent;
    box-shadow: none;
  }
  .platform-tab-panels,
  .platform-tab-extra {
    grid-column: auto;
  }
  .platform-tab {
    min-height: 76px;
  }
  .platform-pane {
    padding: 18px;
    min-height: 0;
  }
  .gallery-stage-modern {
    padding: 16px;
    border-radius: 28px;
  }
  .gallery-stage-actions {
    justify-content: space-between;
    width: 100%;
  }
  .gallery-preview-shell {
    padding: 14px;
    gap: 14px;
  }
  .gallery-preview {
    aspect-ratio: 10 / 13;
    padding: 10px;
  }
  .gallery-caption-panel {
    padding: 16px;
    border-radius: 22px;
  }
  .gallery-rail {
    grid-auto-columns: minmax(180px, 72vw);
  }
  .footer-cta {
    padding: 20px;
    border-radius: 28px;
  }
}

@media (max-width: 620px) {
  .container {
    width: min(var(--container), calc(100% - 18px));
  }
  .header-row {
    padding: 8px 0 10px;
  }
  .brand-mark {
    width: 40px;
    height: 40px;
  }
  .brand-subtitle {
    max-width: 72px;
  }
  .header-actions-smart {
    grid-template-columns: repeat(2, minmax(0,1fr));
  }
  .header-actions-smart .btn {
    border-radius: 15px;
    min-height: 42px;
    font-size: 13px;
    padding-inline: 10px;
  }
  .mobile-menu-tabs,
  .footer-mobile-tabs {
    gap: 8px;
    padding: 8px;
  }
  .mobile-nav-card,
  .footer-mobile-grid .footer-link-card {
    min-height: 80px;
    padding: 11px;
  }
  .mobile-nav-copy strong,
  .footer-link-copy strong {
    font-size: 13px;
  }
  .mobile-nav-copy small,
  .footer-link-copy small {
    font-size: 10px;
  }
  .hero-grid {
    padding: 16px;
    border-radius: 24px;
  }
  .hero-actions-home,
  .platform-pane-actions,
  .actions,
  .card-actions,
  .footer-actions-smart {
    gap: 9px;
  }
  .hero-actions-home > .btn,
  .platform-pane-actions > .btn,
  .actions > .btn,
  .card-actions > .btn,
  .footer-actions-smart > .footer-chip {
    min-height: 44px;
    padding-inline: 12px;
    font-size: 14px;
  }
  .hero-pill {
    min-height: 72px;
  }
  .platform-tab-nav {
    grid-auto-columns: minmax(160px, 78vw);
  }
  .gallery-stage-top {
    gap: 12px;
  }
  .gallery-stage-actions {
    display: grid;
    grid-template-columns: minmax(0,1fr) auto auto;
    gap: 8px;
    align-items: stretch;
  }
  .gallery-counter {
    min-height: 42px;
    justify-content: flex-start;
  }
  .gallery-expand {
    min-height: 42px;
    padding-inline: 14px;
  }
  .gallery-nav-group .gallery-nav-btn {
    width: 42px;
    height: 42px;
    border-radius: 14px;
  }
  .gallery-preview-shell {
    padding: 12px;
  }
  .gallery-preview {
    aspect-ratio: 4 / 5;
    padding: 9px;
  }
  .gallery-preview img {
    border-radius: 18px;
  }
  .gallery-caption-panel {
    padding: 14px;
    gap: 12px;
  }
  .gallery-caption-panel h3 {
    font-size: 22px;
  }
  .gallery-tip-row {
    gap: 6px;
  }
  .gallery-tip {
    font-size: 11px;
    padding-inline: 10px;
  }
  .gallery-rail {
    grid-auto-columns: minmax(156px, 74vw);
    gap: 8px;
  }
  .gallery-card {
    min-height: 84px;
    grid-template-columns: 64px minmax(0,1fr);
    gap: 10px;
  }
  .gallery-card-image {
    border-radius: 12px;
  }
  .footer-cta {
    padding: 16px;
    gap: 14px;
  }
  .footer-cta-copy h3 {
    max-width: none;
  }
  .footer-cta-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 9px;
  }
  .footer-actions-smart > .footer-chip-share {
    grid-column: 1 / -1;
  }
  .footer-chip {
    min-height: 44px;
    font-size: 14px;
  }
}

@media (max-width: 420px) {
  .hero-copy h1 {
    font-size: clamp(30px, 11vw, 44px);
  }
  .gallery-stage-actions {
    grid-template-columns: 1fr auto;
  }
  .gallery-expand {
    grid-column: 1 / -1;
    width: 100%;
  }
  .gallery-rail {
    grid-auto-columns: minmax(148px, 76vw);
  }
}


/* --- desktop polish v6: icon-driven platform tabs, modern gallery rail, desktop footer tabs --- */
@keyframes fadeInSoft {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 1181px) {
  .gallery-preview-shell {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .gallery-preview {
    aspect-ratio: 16 / 9;
    padding: 14px;
  }
  .gallery-caption-panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
    align-items: start;
  }
  .gallery-rail-wrap {
    margin-top: 0;
  }
  .gallery-rail {
    grid-auto-flow: column;
    grid-auto-columns: minmax(220px, 1fr);
    max-height: none;
    overflow-x: auto;
    overflow-y: hidden;
    padding-bottom: 6px;
    scroll-snap-type: x proximity;
  }
  .gallery-card {
    min-height: 102px;
    padding: 12px;
    grid-template-columns: 76px minmax(0, 1fr);
  }
}

@media (min-width: 921px) {
  .desktop-footer-grid[data-desktop-enhanced="1"] {
    grid-template-columns: minmax(320px, .88fr) minmax(0, 1.12fr);
    align-items: stretch;
  }
  .footer-tab-shell {
    display: grid;
    gap: 16px;
    padding: 24px;
  }
  .footer-tab-shell-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, .7fr);
    gap: 16px;
    align-items: end;
  }
  .footer-tab-shell-head h4 {
    margin: 10px 0 0;
    font-size: clamp(22px, 2vw, 30px);
    line-height: 1.04;
    letter-spacing: -.04em;
  }
  .footer-tab-shell-head p {
    margin: 0;
    line-height: 1.68;
    text-align: right;
  }
  .footer-tab-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    padding: 10px;
    border-radius: 24px;
    border: 1px solid rgba(255,255,255,.08);
    background: linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,.018));
    box-shadow: inset 0 1px 0 rgba(255,255,255,.04);
  }
  .footer-tab-trigger {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    min-height: 74px;
    padding: 12px 14px;
    border-radius: 18px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--muted);
    text-align: left;
    transition: transform .18s ease, border-color .18s ease, background .18s ease, color .18s ease, box-shadow .18s ease;
  }
  .footer-tab-trigger:hover,
  .footer-tab-trigger:focus-visible {
    transform: translateY(-1px);
    color: var(--text);
    border-color: rgba(255,255,255,.08);
    background: rgba(255,255,255,.04);
  }
  .footer-tab-trigger.active {
    color: var(--text);
    border-color: rgba(141,216,255,.14);
    background: linear-gradient(135deg, rgba(108,125,255,.18), rgba(254,91,115,.10));
    box-shadow: inset 0 0 0 1px rgba(255,255,255,.04), 0 18px 38px rgba(0,0,0,.16);
  }
  .footer-tab-trigger-icon,
  .footer-tab-trigger-icon .footer-card-icon {
    width: 46px;
    height: 46px;
    border-radius: 15px;
    display: grid;
    place-items: center;
  }
  .footer-tab-trigger-icon {
    flex: 0 0 46px;
    border: 1px solid rgba(255,255,255,.08);
    background: rgba(255,255,255,.05);
    color: var(--accent-3);
  }
  .footer-tab-trigger-icon .footer-card-icon {
    color: inherit;
  }
  .footer-tab-trigger-copy {
    display: grid;
    gap: 3px;
    min-width: 0;
  }
  .footer-tab-trigger-copy strong {
    font-size: 15px;
    letter-spacing: -.01em;
  }
  .footer-tab-trigger-copy small {
    color: currentColor;
    opacity: .72;
    font-size: 12px;
    line-height: 1.4;
  }
  .footer-tab-panels {
    display: grid;
  }
  .footer-tab-panel {
    animation: fadeInSoft .2s ease;
  }
  .footer-tab-panel .footer-link-grid {
    gap: 12px;
  }
  .footer-tab-panel[data-tab-panel="footer-sections"] .footer-link-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .footer-tab-panel[data-tab-panel="footer-links"] .footer-link-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-auto-flow: row dense;
  }
  .footer-tab-panel .footer-link-card {
    min-height: 94px;
    padding: 16px;
    border-radius: 22px;
    transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease, background .18s ease;
  }
  .footer-tab-panel .footer-link-card:hover {
    transform: translateY(-2px);
    border-color: rgba(141,216,255,.16);
    box-shadow: 0 20px 44px rgba(0,0,0,.16);
  }
  .footer-tab-panel .footer-link-card-wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 921px) and (max-width: 1180px) {
  .footer-tab-panel[data-tab-panel="footer-links"] .footer-link-card:nth-child(4) {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1181px) {
  .footer-tab-panel[data-tab-panel="footer-links"] .footer-link-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1025px) {
  .platform-tabs {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .platform-pane {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.86fr);
    gap: clamp(20px, 2vw, 28px);
    align-items: center;
  }
  .platform-tab-nav {
    position: static;
    top: auto;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    padding: 12px;
  }
  .platform-tab-panels,
  .platform-tab-extra {
    grid-column: auto;
  }
  .platform-tab {
    display: grid;
    justify-items: center;
    align-content: center;
    gap: 10px;
    min-height: 98px;
    padding: 14px 12px 12px;
    text-align: center;
  }
  .platform-tab::before {
    inset: auto 16px 10px 16px;
    width: auto;
    height: 3px;
  }
  .platform-tab:hover,
  .platform-tab:focus-visible {
    transform: translateY(-2px);
  }
  .platform-tab-icon {
    width: 52px;
    height: 52px;
    border-radius: 18px;
  }
  .platform-tab-copy {
    display: grid;
    justify-items: center;
    gap: 4px;
  }
  .platform-tab-copy strong {
    font-size: 13px;
    letter-spacing: -.01em;
  }
  .platform-tab-copy small {
    display: none;
  }
  .platform-tab-extra {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
  }
  .platform-extra-link {
    min-height: 52px;
    justify-content: center;
    text-align: center;
  }
}

@media (max-width: 1180px) {
  .footer-tab-shell-head {
    grid-template-columns: 1fr;
  }
  .footer-tab-shell-head p {
    text-align: left;
  }
}


/* --- v7 desktop icon nav + restored gallery split layout --- */
.nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}
.nav-icon {
  position: relative;
  z-index: 1;
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}
.nav-icon svg {
  width: 100%;
  height: 100%;
}
.nav-label {
  position: relative;
  z-index: 1;
  white-space: nowrap;
}

@media (min-width: 921px) {
  .site-header .nav {
    gap: 8px;
    padding: 10px;
    justify-content: center;
  }
  .site-header .nav a {
    width: 52px;
    min-width: 52px;
    height: 52px;
    padding: 0;
    border-radius: 18px;
    box-shadow: inset 0 1px 0 rgba(255,255,255,.035);
  }
  .site-header .nav a::after {
    content: attr(data-label);
    position: absolute;
    left: 50%;
    top: calc(100% + 10px);
    transform: translate(-50%, -6px);
    opacity: 0;
    pointer-events: none;
    padding: 8px 12px;
    border-radius: 999px;
    border: 1px solid rgba(141,216,255,.14);
    background: rgba(9,16,30,.94);
    box-shadow: 0 16px 34px rgba(0,0,0,.22);
    color: var(--text);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: -.01em;
    white-space: nowrap;
    transition: opacity .18s ease, transform .18s ease;
    z-index: 5;
  }
  .site-header .nav a:hover::after,
  .site-header .nav a:focus-visible::after {
    opacity: 1;
    transform: translate(-50%, 0);
  }
  .site-header .nav a .nav-label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
  }
  .site-header .nav a .nav-icon {
    width: 20px;
    height: 20px;
    transition: transform .18s ease, color .18s ease;
  }
  .site-header .nav a:hover,
  .site-header .nav a:focus-visible {
    transform: translateY(-1px);
  }
  .site-header .nav a.active {
    background: linear-gradient(135deg, rgba(108,125,255,.22), rgba(254,91,115,.12));
  }
  .site-header .nav a.active .nav-icon {
    transform: scale(1.08);
  }
}

@media (min-width: 1181px) {
  .gallery-preview-shell {
    grid-template-columns: minmax(0, 1.12fr) minmax(340px, .88fr);
    align-items: stretch;
    gap: 18px;
  }
  .gallery-spotlight {
    min-width: 0;
    display: grid;
  }
  .gallery-preview {
    aspect-ratio: 16 / 10;
    min-height: 520px;
    height: 100%;
  }
  .gallery-caption-panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto auto auto auto auto minmax(0, 1fr);
    align-items: start;
    min-height: 100%;
    gap: 14px;
  }
  .gallery-rail-wrap {
    min-height: 0;
    margin-top: 4px;
  }
  .gallery-rail {
    grid-auto-flow: row;
    grid-auto-columns: auto;
    overflow-y: auto;
    overflow-x: hidden;
    max-height: 360px;
    padding-right: 4px;
    padding-bottom: 0;
    scroll-snap-type: y proximity;
  }
  .gallery-card {
    min-height: 92px;
    padding: 10px;
    grid-template-columns: 72px minmax(0, 1fr);
  }
}


/* --- v9 final QA pass: layout fixes, current states, cleaner desktop/mobile balance --- */
:focus-visible {
  outline: 2px solid rgba(141,216,255,.72);
  outline-offset: 2px;
}

img {
  height: auto;
}

.hero-copy,
.hero-visual,
.platform-pane,
.platform-pane-copy,
.platform-pane-media,
.footer-card,
.footer-link-card,
.gallery-preview-shell,
.gallery-spotlight,
.gallery-caption-panel,
.download-card,
.support-card,
.quick-card,
.feature-card,
.device-card,
.stat-card {
  min-width: 0;
}

.footer-link-copy strong,
.mobile-nav-copy strong,
.brand-title,
.brand-subtitle,
.footer-bottom-links a,
.platform-tab-copy strong,
.platform-tab-copy small,
.stat-card,
.hero-pill span,
.hero-pill strong {
  overflow-wrap: anywhere;
}

.nav,
.platform-tab-nav,
.footer-link-grid,
.footer-mobile-grid,
.mobile-nav-grid,
.gallery-rail {
  scrollbar-width: none;
}
.nav::-webkit-scrollbar,
.platform-tab-nav::-webkit-scrollbar,
.footer-link-grid::-webkit-scrollbar,
.footer-mobile-grid::-webkit-scrollbar,
.mobile-nav-grid::-webkit-scrollbar,
.gallery-rail::-webkit-scrollbar {
  display: none;
}

.site-header .nav {
  flex-wrap: nowrap;
  overflow-x: auto;
  overscroll-behavior-x: contain;
}

.site-header .nav a {
  position: relative;
  flex: 0 0 auto;
}

@media (min-width: 921px) {
  .site-header .nav {
    padding: 10px;
    gap: 8px;
  }
  .site-header .nav a {
    width: 50px;
    min-width: 50px;
    height: 50px;
    padding: 0;
    border-radius: 17px;
  }
  .site-header .nav a .nav-icon {
    width: 19px;
    height: 19px;
  }
  .site-header .nav a.active,
  .site-header .nav a[aria-current='page'] {
    background: linear-gradient(135deg, rgba(108,125,255,.26), rgba(254,91,115,.14));
    border-color: rgba(141,216,255,.16);
    box-shadow: inset 0 1px 0 rgba(255,255,255,.04), 0 16px 30px rgba(0,0,0,.16);
  }
}

.header-actions-smart {
  flex-wrap: wrap;
}

.hero-actions-home,
.footer-actions-smart {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.hero-actions-home > .btn-share-full,
.footer-actions-smart > .footer-chip-share {
  grid-column: 1 / -1;
}
.hero-actions-home > .btn,
.footer-actions-smart > .footer-chip {
  width: 100%;
  min-width: 0;
}

.platform-tab,
.footer-tab-trigger,
.footer-link-card,
.mobile-nav-card,
.gallery-card,
.btn,
.footer-chip {
  -webkit-tap-highlight-color: transparent;
}

.platform-tabs {
  overflow: clip;
}
.platform-tab-nav {
  align-items: stretch;
}
.platform-tab,
.footer-tab-trigger {
  min-width: 0;
}
.platform-tab-copy,
.footer-tab-trigger-copy {
  min-width: 0;
}
.platform-tab.active,
.platform-tab[aria-selected='true'] {
  border-color: rgba(141,216,255,.16);
}
.platform-pane {
  min-height: clamp(360px, 40vw, 460px);
}
.platform-pane-media {
  align-self: stretch;
}
.platform-pane-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.platform-extra-link.is-current,
.footer-link-card.is-current,
.footer-bottom-links a.is-current {
  border-color: rgba(141,216,255,.18);
  color: var(--text);
  background: linear-gradient(135deg, rgba(108,125,255,.14), rgba(254,91,115,.08));
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.04);
}

.gallery-shell {
  min-width: 0;
}
.gallery-stage-modern {
  overflow: clip;
}
.gallery-stage-top {
  align-items: center;
}
.gallery-stage-actions {
  margin-left: auto;
}
.gallery-preview-shell {
  align-items: stretch;
}
.gallery-spotlight,
.gallery-caption-panel {
  min-height: 0;
}
.gallery-preview {
  cursor: zoom-in;
}
.gallery-caption-panel {
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04);
}
.gallery-rail {
  overscroll-behavior: contain;
}
.gallery-card {
  align-items: center;
}
.gallery-card.active,
.gallery-card[aria-pressed='true'] {
  border-color: rgba(141,216,255,.18);
}
.gallery-card-copy strong {
  overflow-wrap: anywhere;
}
.gallery-nav-group .gallery-nav-btn:disabled,
.carousel-nav:disabled {
  opacity: .45;
  pointer-events: none;
}

.desktop-footer-grid {
  align-items: start;
}
.footer-tab-shell {
  gap: 18px;
}
.footer-tab-panels,
.footer-tab-panel {
  min-width: 0;
}
.footer-tab-panel .footer-link-grid {
  align-items: stretch;
}
.footer-tab-panel .footer-link-card {
  min-width: 0;
  height: 100%;
}
.footer-tab-panel[data-tab-panel='footer-sections'] .footer-link-grid,
.footer-tab-panel[data-tab-panel='footer-links'] .footer-link-grid {
  grid-auto-rows: 1fr;
}
.footer-link-card-wide {
  grid-column: 1 / -1;
}
.footer-bottom {
  gap: 12px;
}

@media (min-width: 1025px) {
  .footer-tab-panel[data-tab-panel='footer-sections'] .footer-link-grid,
  .footer-tab-panel[data-tab-panel='footer-links'] .footer-link-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .desktop-footer-grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  }
  .footer-link-card {
    min-height: 102px;
  }
  .gallery-preview-shell {
    grid-template-columns: minmax(0, 1.14fr) minmax(320px, .86fr);
    gap: 18px;
  }
  .gallery-preview {
    min-height: 520px;
  }
}

@media (min-width: 921px) and (max-width: 1024px) {
  .footer-tab-panel[data-tab-panel='footer-sections'] .footer-link-grid,
  .footer-tab-panel[data-tab-panel='footer-links'] .footer-link-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 920px) {
  .header-row {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas: 'brand toggle' 'actions actions';
    align-items: center;
  }
  .brand {
    min-width: 0;
  }
  .brand-copy {
    min-width: 0;
  }
  .header-actions-smart {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
  }
  .hero-actions-home,
  .platform-pane-actions,
  .actions,
  .card-actions,
  .footer-actions-smart {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .hero-actions-home > .btn-share-full,
  .footer-actions-smart > .footer-chip-share {
    grid-column: 1 / -1;
  }
  .platform-tab-nav {
    grid-auto-columns: minmax(180px, 72vw);
  }
  .gallery-preview-shell {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  :root {
    --header-h: 64px;
    --section-y: 68px;
  }
  .container {
    width: min(var(--container), calc(100% - 18px));
  }
  .header-row {
    gap: 10px;
    padding: 8px 0 10px;
  }
  .brand {
    gap: 10px;
  }
  .brand-mark {
    width: 40px;
    height: 40px;
  }
  .brand-mark img {
    width: 26px;
    height: 26px;
  }
  .brand-title {
    font-size: 14px;
  }
  .brand-subtitle {
    max-width: 96px;
    font-size: 11px;
  }
  .site-header .mobile-toggle {
    width: 42px;
    height: 42px;
  }
  .header-actions-smart .btn {
    min-height: 42px;
    padding-inline: 12px;
    font-size: 14px;
  }
  .hero-grid {
    padding: 16px;
    border-radius: 24px;
    gap: 18px;
  }
  .hero-copy h1 {
    max-width: none;
  }
  .hero-copy p {
    font-size: 15px;
  }
  .hero-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }
  .hero-meta > :last-child {
    grid-column: 1 / -1;
  }
  .hero-actions-home,
  .platform-pane-actions,
  .actions,
  .card-actions,
  .footer-actions-smart,
  .mobile-nav-grid,
  .footer-mobile-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }
  .mobile-nav-card-wide,
  .footer-mobile-grid .footer-link-card-wide,
  .hero-actions-home > .btn-share-full,
  .footer-actions-smart > .footer-chip-share {
    grid-column: 1 / -1;
  }
  .hero-actions-home > .btn,
  .platform-pane-actions > .btn,
  .actions > .btn,
  .card-actions > .btn,
  .footer-actions-smart > .footer-chip {
    min-height: 44px;
    padding-inline: 12px;
    font-size: 14px;
  }
  .platform-tabs,
  .gallery-stage-modern,
  .footer-cta,
  .footer-card {
    border-radius: 24px;
  }
  .platform-pane,
  .download-card,
  .support-card,
  .quick-card,
  .feature-card,
  .device-card,
  .footer-link-card,
  .mobile-nav-card {
    border-radius: 18px;
  }
  .platform-tab-icon,
  .footer-link-icon,
  .mobile-nav-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
  }
  .gallery-stage-actions {
    grid-template-columns: minmax(0, 1fr) auto;
    width: 100%;
  }
  .gallery-counter {
    min-height: 42px;
    min-width: 0;
  }
  .gallery-expand {
    width: 100%;
    grid-column: 1 / -1;
  }
  .gallery-nav-group {
    display: inline-flex;
    gap: 8px;
  }
  .gallery-preview {
    aspect-ratio: 4 / 5;
    padding: 10px;
  }
  .gallery-caption-panel {
    padding: 14px;
    border-radius: 18px;
  }
  .gallery-rail {
    grid-auto-columns: minmax(178px, 74vw);
  }
  .gallery-card {
    min-height: 92px;
    grid-template-columns: 72px minmax(0, 1fr);
  }
  .footer-mobile-explorer {
    display: block;
  }
  .desktop-footer-grid {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}



/* --- v10 updates page --- */
.hero-updates {
  padding-top: 42px;
  padding-bottom: 24px;
}
.updates-hero {
  padding: 28px;
  border-radius: 34px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
  gap: 24px;
  background:
    radial-gradient(circle at top right, rgba(108,125,255,.18), transparent 34%),
    radial-gradient(circle at bottom left, rgba(254,91,115,.14), transparent 28%),
    linear-gradient(180deg, rgba(10,20,38,.96), rgba(9,16,30,.92));
  border: 1px solid rgba(255,255,255,.08);
  box-shadow: var(--shadow);
}
.updates-hero h1 {
  margin: 18px 0 0;
  font-size: clamp(34px, 5.2vw, 64px);
  line-height: 1.02;
  letter-spacing: -.05em;
}
.updates-hero p {
  margin: 18px 0 0;
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.66;
}
.updates-hero-actions {
  margin-top: 24px;
}
.updates-overview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 14px;
  align-content: start;
}
.updates-overview-card {
  display: grid;
  grid-template-columns: 54px minmax(0,1fr);
  gap: 14px;
  align-items: center;
  padding: 16px;
  min-height: 112px;
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.04);
}
.updates-overview-icon {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  color: var(--accent-3);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
}
.updates-overview-icon svg {
  width: 24px;
  height: 24px;
}
.updates-overview-copy {
  display: grid;
  gap: 4px;
  min-width: 0;
}
.updates-overview-copy strong {
  font-size: 17px;
  letter-spacing: -.02em;
}
.updates-overview-copy span {
  color: var(--muted);
  line-height: 1.5;
  font-size: 14px;
}
.updates-overview-card small {
  grid-column: 1 / -1;
  color: rgba(255,255,255,.56);
  font-size: 13px;
}
.updates-shell {
  padding: 24px;
  border-radius: 34px;
  background:
    radial-gradient(circle at top right, rgba(108,125,255,.12), transparent 28%),
    linear-gradient(180deg, rgba(9,18,36,.94), rgba(8,15,28,.92));
  border: 1px solid rgba(255,255,255,.08);
  box-shadow: var(--shadow);
}
.updates-shell-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}
.updates-shell-head h2 {
  margin: 14px 0 0;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.04;
  letter-spacing: -.04em;
}
.updates-shell-head p {
  max-width: 560px;
}
.updates-tab-nav {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 12px;
}
.updates-tab {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  min-width: 0;
  padding: 16px 18px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.04);
  color: var(--muted);
  text-align: left;
  cursor: pointer;
  transition: transform .2s ease, background .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease;
}
.updates-tab:hover,
.updates-tab.active,
.updates-tab[aria-selected='true'] {
  color: var(--text);
  transform: translateY(-1px);
  border-color: rgba(141,216,255,.18);
  background: linear-gradient(135deg, rgba(108,125,255,.16), rgba(254,91,115,.08));
  box-shadow: 0 18px 36px rgba(0,0,0,.18);
}
.updates-tab-icon {
  width: 48px;
  height: 48px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  color: var(--accent-3);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
}
.updates-tab-icon svg {
  width: 22px;
  height: 22px;
}
.updates-tab-copy {
  display: grid;
  gap: 4px;
  min-width: 0;
}
.updates-tab-copy strong {
  font-size: 17px;
  letter-spacing: -.02em;
}
.updates-tab-copy small {
  color: inherit;
  opacity: .82;
  line-height: 1.45;
  font-size: 13px;
}
.updates-tab-version {
  margin-left: auto;
  padding: 9px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.04);
  color: var(--text);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}
.updates-panels {
  margin-top: 18px;
}
.updates-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, .92fr);
  gap: 18px;
  align-items: start;
}
.updates-panel[hidden] {
  display: none !important;
}

.updates-feed {
  position: relative;
  display: grid;
  gap: 14px;
  padding-left: 24px;
}
.updates-feed::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(141,216,255,.65), rgba(108,125,255,.18), rgba(254,91,115,.48));
}
.update-entry {
  position: relative;
  padding: 20px 20px 20px 22px;
  border-radius: 26px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.04);
  box-shadow: 0 18px 44px rgba(0,0,0,.16);
}
.update-entry::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 24px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 0 6px rgba(9,18,36,.96);
}
.update-entry.is-featured {
  border-color: rgba(141,216,255,.18);
  background: linear-gradient(135deg, rgba(108,125,255,.14), rgba(254,91,115,.08));
}
.update-entry-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
}
.update-version,
.update-date,
.update-tag {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.08);
  font-size: 13px;
}
.update-version {
  color: var(--text);
  background: rgba(108,125,255,.16);
}
.update-date {
  color: var(--muted);
  background: rgba(255,255,255,.03);
}
.update-tag.tag-stable {
  color: var(--success);
  background: rgba(107,226,167,.10);
}
.update-tag.tag-patch {
  color: var(--warning);
  background: rgba(255,213,107,.10);
}
.update-tag.tag-feature {
  color: var(--accent-3);
  background: rgba(141,216,255,.10);
}
.update-entry h3 {
  margin: 0 0 10px;
  font-size: clamp(22px, 3vw, 28px);
  line-height: 1.14;
  letter-spacing: -.03em;
}
.update-entry p {
  margin: 0;
  color: var(--muted);
  line-height: 1.72;
}
.update-list {
  margin: 14px 0 0;
  padding-left: 18px;
}
.update-list li {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.64;
}
.updates-side {
  display: grid;
  gap: 14px;
  position: sticky;
  top: calc(var(--header-h) + 18px);
}
.update-side-card {
  padding: 20px;
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.04);
  box-shadow: 0 16px 38px rgba(0,0,0,.14);
}
.update-side-card-current {
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
}
.update-side-card h3,
.update-side-card h4 {
  margin: 0;
  font-size: 20px;
  letter-spacing: -.02em;
}
.update-side-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.68;
}
.update-current-version {
  margin: 12px 0 8px;
  font-size: clamp(36px, 4.2vw, 54px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.07em;
}
.update-meta-list {
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
}
.update-meta-list div {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding-top: 10px;
  border-top: 1px solid rgba(255,255,255,.08);
}
.update-meta-list dt,
.update-meta-list dd {
  margin: 0;
}
.update-meta-list dt {
  color: var(--muted);
}
.update-meta-list dd {
  text-align: right;
  font-weight: 700;
}
.update-mini-list {
  margin: 14px 0 0;
  padding-left: 18px;
}
.update-mini-list li {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.62;
}
.update-side-actions {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}
.update-side-actions .btn {
  width: 100%;
}

@media (min-width: 921px) and (max-width: 1180px) {
  .header-actions .btn-secondary.always-show {
    display: none;
  }
}

@media (max-width: 1160px) {
  .updates-hero,
  .updates-panel {
    grid-template-columns: 1fr;
  }
  .updates-shell-head {
    display: grid;
  }
  .updates-shell-head p {
    max-width: none;
  }
  .updates-side {
    position: static;
  }
}

@media (max-width: 920px) {
  .updates-tab-nav {
    display: flex;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    padding-bottom: 4px;
    gap: 10px;
    scrollbar-width: none;
  }
  .updates-tab-nav::-webkit-scrollbar {
    display: none;
  }
  .updates-tab {
    min-width: 280px;
    flex: 0 0 auto;
  }
}

@media (max-width: 640px) {
  .hero-updates {
    padding-top: 30px;
    padding-bottom: 18px;
  }
  .updates-hero,
  .updates-shell {
    padding: 18px;
    border-radius: 26px;
  }
  .updates-hero h1 {
    font-size: clamp(30px, 10vw, 44px);
  }
  .updates-hero p {
    font-size: 17px;
  }
  .updates-overview-grid {
    grid-template-columns: 1fr;
  }
  .updates-tab {
    min-width: 244px;
    padding: 14px;
    border-radius: 22px;
  }
  .updates-tab-icon {
    width: 44px;
    height: 44px;
    border-radius: 16px;
  }
  .updates-tab-version {
    padding: 8px 10px;
  }
  .updates-feed {
    padding-left: 18px;
  }
  .updates-feed::before {
    left: 6px;
  }
  .update-entry {
    padding: 18px 16px 18px 18px;
    border-radius: 22px;
  }
  .update-entry::before {
    left: -18px;
    top: 22px;
  }
  .update-current-version {
    font-size: 34px;
  }
}

/* --- v12 mobile polish and bugfixes --- */
body.mobile-menu-open {
  overflow: hidden;
}
body.mobile-menu-open::before {
  content: "";
  position: fixed;
  inset: 0;
  background: rgba(3, 7, 15, .56);
  backdrop-filter: blur(10px);
  z-index: 55;
}

.lightbox-dialog {
  display: flex;
  flex-direction: column;
}
.lightbox-stage {
  flex: 1 1 auto;
}
.lightbox-figure {
  display: grid;
  place-items: center;
  min-height: min(62vh, 720px);
}
.lightbox-figure img {
  display: block;
  margin: 0 auto;
}
.lightbox-stage-controls[hidden] {
  display: none !important;
}

@media (max-width: 920px) {
  .site-header {
    z-index: 60;
  }
  .mobile-menu {
    position: fixed;
    left: 10px;
    right: 10px;
    top: calc(var(--header-h) + 10px);
    max-height: calc(100dvh - var(--header-h) - 20px);
    overflow: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    padding: 10px;
    border-radius: 28px;
    border: 1px solid rgba(255,255,255,.08);
    background: linear-gradient(180deg, rgba(8,15,27,.97), rgba(8,15,27,.93));
    box-shadow: 0 28px 70px rgba(0,0,0,.42);
    z-index: 61;
  }
  .mobile-menu::-webkit-scrollbar {
    width: 0;
    height: 0;
  }
  .mobile-menu .mobile-menu-tabs {
    position: sticky;
    top: 0;
    z-index: 2;
    background: linear-gradient(180deg, rgba(8,15,27,.98), rgba(8,15,27,.94));
    backdrop-filter: blur(12px);
    box-shadow: 0 10px 24px rgba(0,0,0,.18);
  }
  .mobile-menu-panel {
    margin-top: 10px;
  }
  .hero-pills {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .hero-pill {
    min-height: 86px;
    align-content: start;
  }
}

@media (max-width: 640px) {
  .lightbox {
    padding: 6px;
  }
  .lightbox-dialog {
    width: 100%;
    max-height: calc(100dvh - 12px);
    border-radius: 24px;
  }
  .lightbox-toolbar {
    align-items: flex-start;
    padding: 14px 14px 12px;
  }
  .lightbox-title {
    font-size: 17px;
    line-height: 1.16;
  }
  .lightbox-counter,
  .lightbox-description {
    font-size: 13px;
  }
  .lightbox-stage {
    padding: 10px 10px 12px;
    gap: 12px;
  }
  .lightbox-stage > .lightbox-nav {
    display: none;
  }
  .lightbox-stage-controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 0;
  }
  .lightbox-stage-controls .lightbox-nav {
    width: 100%;
    height: 46px;
    border-radius: 16px;
  }
  .lightbox-stage-controls .lightbox-nav:hover:not(:disabled) {
    transform: none;
  }
  .lightbox-figure {
    min-height: min(58vh, 520px);
    border-radius: 22px;
  }
  .lightbox-figure img {
    max-height: min(58vh, 520px);
  }

  .gallery-stage-modern {
    padding: 14px;
    border-radius: 24px;
  }
  .gallery-stage-top {
    gap: 10px;
    align-items: stretch;
  }
  .gallery-stage-actions {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
  }
  .gallery-nav-group {
    justify-self: end;
  }
  .gallery-expand {
    grid-column: 1 / -1;
    width: 100%;
  }
  .gallery-preview-shell {
    padding: 10px;
    gap: 10px;
    border-radius: 24px;
  }
  .gallery-preview {
    aspect-ratio: 10 / 13;
    padding: 8px;
    border-radius: 22px;
  }
  .gallery-preview::after {
    inset: auto 14px 14px auto;
    width: 62px;
  }
  .gallery-caption-panel {
    padding: 14px;
    border-radius: 20px;
  }
  .gallery-progress {
    height: 6px;
  }
  .gallery-rail {
    grid-auto-columns: minmax(144px, 68vw);
    gap: 8px;
  }
  .gallery-card {
    min-height: 78px;
    padding: 9px;
  }
  .gallery-card-copy strong {
    font-size: 13px;
  }
  .gallery-card-copy span {
    font-size: 11px;
  }

  .update-side-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .update-side-actions .btn {
    min-width: 0;
    min-height: 46px;
    padding-inline: 12px;
    font-size: 14px;
  }
}

@media (max-width: 420px) {
  .hero-pills {
    gap: 10px;
  }
  .hero-pill {
    padding: 14px 14px 12px;
    min-height: 88px;
    border-radius: 20px;
  }
  .hero-pill strong {
    font-size: 14px;
  }
  .hero-pill span {
    font-size: 12px;
    line-height: 1.38;
  }
}


/* --- download build selector --- */

.build-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 20px;
  margin-top: 26px;
}
.build-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 100%;
  padding: 24px;
  background: linear-gradient(180deg, rgba(16, 28, 53, .88), rgba(10, 18, 33, .96));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  overflow: hidden;
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.build-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(108,125,255,.20), transparent 34%), radial-gradient(circle at bottom left, rgba(254,91,115,.14), transparent 34%);
  pointer-events: none;
}
.build-card:hover {
  transform: translateY(-4px);
  border-color: rgba(108,125,255,.34);
  box-shadow: 0 30px 90px rgba(0,0,0,.42);
}
.build-card.is-active,
.build-card-featured {
  border-color: rgba(108,125,255,.48);
  box-shadow: 0 30px 90px rgba(27, 43, 88, .52);
}
.build-card-top,
.build-actions,
.build-badges,
.build-file,
.build-card > p {
  position: relative;
  z-index: 1;
}
.build-card-top {
  display: flex;
  align-items: center;
  gap: 16px;
}
.build-card-top h3 {
  margin: 6px 0 0;
  font-size: 24px;
  line-height: 1.1;
  letter-spacing: -.03em;
}
.build-icon {
  flex: 0 0 auto;
  min-width: 64px;
  height: 64px;
  padding: 0 14px;
  border-radius: 20px;
  display: grid;
  place-items: center;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .04em;
  color: var(--text);
  background: linear-gradient(135deg, rgba(108,125,255,.45), rgba(254,91,115,.30));
  border: 1px solid rgba(255,255,255,.12);
}
.build-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.build-badge {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  line-height: 1;
}
.build-file {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}
.build-file code {
  display: inline-flex;
  align-items: center;
  margin-left: 4px;
  padding: 6px 10px;
  border-radius: 12px;
  background: rgba(255,255,255,.06);
  border: 1px solid var(--line);
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
}
.build-actions {
  margin-top: auto;
}
@media (max-width: 980px) {
  .build-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 640px) {
  .build-card {
    padding: 20px;
  }
  .build-card-top {
    align-items: flex-start;
  }
  .build-card-top h3 {
    font-size: 21px;
  }
  .build-icon {
    min-width: 58px;
    height: 58px;
    border-radius: 18px;
    font-size: 18px;
  }
  .build-file code {
    margin-top: 6px;
  }
}