/* MaxBotStat — landing styles. Single file, no build. */

:root {
  --c-primary: #7C3AED;
  --c-primary-600: #6D28D9;
  --c-primary-50: #F5F3FF;
  --c-primary-100: #EDE9FE;

  --c-text: #0F172A;
  --c-text-muted: #475569;
  --c-text-soft: #64748B;

  --c-bg: #FFFFFF;
  --c-bg-alt: #F8FAFC;
  --c-bg-elevated: #FFFFFF;
  --c-border: #E2E8F0;
  --c-border-strong: #CBD5E1;

  --c-code-bg: #F1F5F9;
  --c-code-text: #0F172A;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .04), 0 1px 3px rgba(15, 23, 42, .06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, .06), 0 8px 24px rgba(15, 23, 42, .08);
  --shadow-lg: 0 12px 32px rgba(124, 58, 237, .12), 0 8px 24px rgba(15, 23, 42, .08);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --container: 1180px;
  --header-h: 72px;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --c-text: #F1F5F9;
    --c-text-muted: #CBD5E1;
    --c-text-soft: #94A3B8;

    --c-bg: #0B1020;
    --c-bg-alt: #0F172A;
    --c-bg-elevated: #111A2E;
    --c-border: #1E293B;
    --c-border-strong: #334155;

    --c-code-bg: #111A2E;
    --c-code-text: #E2E8F0;

    --c-primary: #A78BFA;
    --c-primary-600: #8B5CF6;
    --c-primary-50: rgba(167, 139, 250, .10);
    --c-primary-100: rgba(167, 139, 250, .18);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .35);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, .35), 0 8px 24px rgba(0, 0, 0, .35);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, .45), 0 8px 24px rgba(0, 0, 0, .45);
  }
}

/* base ------------------------------------------------------------------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.55;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--c-primary-600); text-decoration: none; }
a:hover { color: var(--c-primary); text-decoration: underline; }

@media (prefers-color-scheme: dark) {
  a { color: var(--c-primary); }
  a:hover { color: #C4B5FD; }
}

h1, h2, h3, h4 {
  margin: 0 0 .5em;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--c-text);
}
h1 { font-size: clamp(2.1rem, 4.5vw, 3.4rem); font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 800; }
h3 { font-size: 1.2rem; font-weight: 700; }
h4 { font-size: 0.95rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--c-text-soft); }
p  { margin: 0 0 1em; color: var(--c-text-muted); }

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  padding: 0.12em 0.42em;
  background: var(--c-code-bg);
  color: var(--c-code-text);
  border-radius: 6px;
  border: 1px solid var(--c-border);
}
pre {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  line-height: 1.55;
  margin: 0;
  padding: 18px 20px;
  background: var(--c-code-bg);
  color: var(--c-code-text);
  border-radius: var(--radius-md);
  border: 1px solid var(--c-border);
  overflow-x: auto;
}
pre code { padding: 0; background: transparent; border: 0; font-size: inherit; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* skip link */
.skip-link {
  position: absolute; left: 16px; top: 8px;
  padding: 8px 12px; background: var(--c-primary); color: #fff;
  border-radius: var(--radius-sm); z-index: 1000;
  transform: translateY(-150%);
  transition: transform .2s;
}
.skip-link:focus { transform: translateY(0); text-decoration: none; }

/* topbar ----------------------------------------------------------------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--c-bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--c-border);
}
.topbar-row {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 24px;
  height: var(--header-h);
}
.brand { display: inline-flex; align-items: center; }
.brand:hover { text-decoration: none; }
.brand-logo { height: 32px; width: auto; }
.brand-logo-dark { display: none; }
@media (prefers-color-scheme: dark) {
  .brand-logo-light { display: none; }
  .brand-logo-dark  { display: block; }
}

.nav { display: flex; gap: 24px; }
.nav a {
  color: var(--c-text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
}
.nav a:hover { color: var(--c-text); text-decoration: none; border-color: var(--c-primary); }

.cta { display: flex; gap: 10px; align-items: center; }

.hamburger {
  display: none;
  width: 40px; height: 40px; padding: 0;
  border: 1px solid var(--c-border);
  background: transparent; border-radius: 10px;
  cursor: pointer;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.hamburger span {
  display: block; width: 18px; height: 2px;
  background: var(--c-text);
  border-radius: 2px;
}

[hidden] { display: none !important; }

.mobile-menu {
  display: flex; flex-direction: column; gap: 4px;
  padding: 12px 24px 22px;
  border-top: 1px solid var(--c-border);
  background: var(--c-bg-elevated);
}
.mobile-menu a {
  padding: 12px 0; color: var(--c-text);
  border-bottom: 1px solid var(--c-border);
  font-weight: 500;
}
.mobile-menu a.btn { border-bottom: 0; }
.mobile-menu .mobile-cta { margin-top: 12px; text-align: center; }

@media (max-width: 960px) {
  .nav, .cta { display: none; }
  .hamburger { display: inline-flex; }
}

/* buttons ---------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 10px;
  font-weight: 600; font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer; user-select: none;
  transition: transform .08s, background-color .15s, border-color .15s, color .15s, box-shadow .15s;
  text-decoration: none;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-lg { padding: 14px 24px; font-size: 1.02rem; }
.btn-primary {
  background: var(--c-primary);
  color: #fff;
  box-shadow: 0 1px 0 rgba(255,255,255,.06) inset, 0 6px 18px rgba(124, 58, 237, .25);
}
.btn-primary:hover { background: var(--c-primary-600); color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--c-text);
  border-color: var(--c-border-strong);
}
.btn-ghost:hover { border-color: var(--c-primary); color: var(--c-primary); }

/* hero ------------------------------------------------------------------- */
.hero {
  position: relative;
  padding: clamp(56px, 8vw, 96px) 0 clamp(48px, 7vw, 72px);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: -200px 0 0 0; height: 480px;
  background:
    radial-gradient(680px 320px at 18% 0%, rgba(124, 58, 237, .18), transparent 60%),
    radial-gradient(640px 320px at 92% 12%, rgba(59, 130, 246, .12), transparent 60%);
  z-index: -1;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 920px) { .hero-grid { grid-template-columns: 1fr; gap: 40px; } }

.eyebrow {
  display: inline-block;
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-primary);
  background: var(--c-primary-50);
  padding: 6px 12px;
  border-radius: 999px;
  margin: 0 0 18px;
}
.lede {
  font-size: clamp(1.05rem, 1.4vw, 1.18rem);
  color: var(--c-text-muted);
  max-width: 56ch;
}
.hero-actions {
  display: flex; gap: 12px; flex-wrap: wrap;
  margin: 28px 0 22px;
}
.hero-trust {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-wrap: wrap; gap: 8px 18px;
  color: var(--c-text-soft);
  font-size: 0.92rem;
}
.hero-trust li {
  display: inline-flex; align-items: center; gap: 8px;
}
.hero-trust li::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--c-primary);
  display: inline-block;
}

/* hero diagram ----------------------------------------------------------- */
.hero-art {
  display: flex; justify-content: center; align-items: center;
}
svg.diagram {
  width: 100%;
  max-width: 420px;
  height: auto;
  padding: 16px;
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: visible;
}

svg.diagram .node-source rect,
svg.diagram .node-target rect {
  fill: var(--c-bg);
  stroke: var(--c-border);
  stroke-width: 1;
}
svg.diagram .node-mbs rect {
  /* fill задаётся inline через url(#mbsGrad) — CSS его не трогает */
  stroke: none;
  animation: mbs-pulse 3.2s ease-in-out infinite;
}

svg.diagram .node-title {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 700;
  fill: var(--c-text);
}
svg.diagram .node-sub {
  font-family: var(--font-sans);
  font-size: 13px;
  fill: var(--c-text-soft);
}
svg.diagram .node-title-light { fill: #fff; }
svg.diagram .node-sub-light   { fill: rgba(255,255,255,.85); }

svg.diagram .lane {
  stroke: var(--c-border-strong);
  stroke-width: 2;
  stroke-dasharray: 4 4;
  stroke-linecap: round;
}

svg.diagram .packet circle { filter: drop-shadow(0 0 4px currentColor); }
svg.diagram .packet-req  { fill: var(--c-primary); color: var(--c-primary); }
svg.diagram .packet-resp { fill: #38bdf8; color: #38bdf8; }   /* синий — ответ */

@keyframes mbs-pulse {
  0%, 100% { filter: drop-shadow(0 0 4px rgba(124, 58, 237, .35)); }
  50%      { filter: drop-shadow(0 0 16px rgba(124, 58, 237, .55)); }
}

@media (prefers-reduced-motion: reduce) {
  svg.diagram .packet,
  svg.diagram .node-mbs rect { animation: none !important; }
  svg.diagram animate { display: none; }
}

/* sections --------------------------------------------------------------- */
.section { padding: clamp(56px, 7vw, 88px) 0; }
.section-alt { background: var(--c-bg-alt); border-top: 1px solid var(--c-border); border-bottom: 1px solid var(--c-border); }
.section-head { max-width: 720px; margin: 0 auto clamp(28px, 4vw, 48px); text-align: center; }
.kicker {
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-primary);
  margin: 0 0 10px;
}
.section-sub { font-size: 1.05rem; color: var(--c-text-muted); }

/* features --------------------------------------------------------------- */
.features {
  list-style: none; padding: 0; margin: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 920px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .features { grid-template-columns: 1fr; } }

.feature {
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: transform .15s, box-shadow .15s, border-color .15s;
}
.feature:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--c-border-strong);
}
.feature h3 { margin: 12px 0 8px; }
.feature p { margin: 0 0 14px; color: var(--c-text-muted); font-size: 0.97rem; }
.feature a { font-weight: 600; font-size: 0.95rem; }
.feature-icon {
  width: 44px; height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 12px;
  background: var(--c-primary-50);
  color: var(--c-primary);
}
.feature-icon svg { width: 22px; height: 22px; }

/* steps ------------------------------------------------------------------ */
.steps {
  list-style: none; padding: 0; margin: 0 0 36px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  counter-reset: step;
}
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } }

.steps li {
  position: relative;
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 24px;
}
.steps li h3 { margin: 14px 0 8px; }
.steps li p  { margin: 0; color: var(--c-text-muted); font-size: 0.97rem; }
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--c-primary);
  color: #fff;
  font-weight: 700;
}

.snippet {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  background: var(--c-bg-elevated);
  overflow: hidden;
}
.snippet-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 18px;
  border-bottom: 1px solid var(--c-border);
  background: var(--c-bg-alt);
  font-size: 0.92rem;
  color: var(--c-text-muted);
}
.snippet-head a { font-weight: 600; }
.snippet pre { border: 0; border-radius: 0; }

/* why -------------------------------------------------------------------- */
.why-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 920px) { .why-grid { grid-template-columns: 1fr; gap: 32px; } }

.bullets { list-style: none; padding: 0; margin: 0 0 0; display: grid; gap: 10px; }
.bullets li {
  position: relative; padding-left: 28px;
  color: var(--c-text-muted);
}
.bullets li::before {
  content: ""; position: absolute; left: 4px; top: 0.55em;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--c-primary);
}

.quote-card {
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-md);
}
.quote-card h3 { margin-top: 0; }
.quote-card ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.quote-card li {
  padding-left: 20px; position: relative;
  color: var(--c-text-muted);
}
.quote-card li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  color: var(--c-primary); font-weight: 700;
}
.quote-card strong { color: var(--c-text); }

/* pricing ---------------------------------------------------------------- */
.plans {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  align-items: stretch;
}
.plans.plans-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 1080px) { .plans, .plans.plans-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px)  { .plans, .plans.plans-3 { grid-template-columns: 1fr; } }

.plan {
  position: relative;
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 26px 24px;
  display: flex; flex-direction: column;
}
.plan h3 { margin: 0 0 8px; font-size: 1.15rem; }
.plan-desc {
  font-size: 0.92rem;
  color: var(--c-text-soft);
  margin: 0 0 14px;
  min-height: 2.6em;
}
.plan .price {
  font-size: 1.9rem; font-weight: 800;
  color: var(--c-text);
  margin: 0 0 4px;
  display: flex; align-items: baseline; gap: 8px;
}
.plan .price small {
  font-size: 0.9rem; font-weight: 500;
  color: var(--c-text-soft);
}
.plan .price-year {
  margin: 0 0 18px;
  font-size: 0.85rem;
  color: var(--c-text-soft);
}

.plan-features {
  list-style: none; padding: 0; margin: 0 0 22px;
  display: grid; gap: 10px;
  font-size: 0.93rem;
}
.plan-features li {
  position: relative; padding-left: 26px;
  color: var(--c-text-muted);
}
.plan-features li.ok::before {
  content: ""; position: absolute; left: 4px; top: 0.45em;
  width: 12px; height: 6px;
  border-left: 2px solid var(--c-primary);
  border-bottom: 2px solid var(--c-primary);
  transform: rotate(-45deg);
}
.plan-features li.no {
  color: var(--c-text-soft);
}
.plan-features li.no::before {
  content: ""; position: absolute; left: 4px; top: 0.7em;
  width: 12px; height: 0;
  border-top: 2px solid var(--c-border-strong);
  border-radius: 2px;
}

.plan .btn { margin-top: auto; }
.plan-featured {
  border-color: var(--c-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
@media (max-width: 1080px) { .plan-featured { transform: none; } }
.badge {
  position: absolute; top: -10px; right: 24px;
  background: var(--c-primary); color: #fff;
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.06em;
  padding: 4px 10px; border-radius: 999px;
  text-transform: uppercase;
}
.pricing-note {
  margin: 24px 0 0; text-align: center;
  color: var(--c-text-soft); font-size: 0.95rem;
}

/* faq -------------------------------------------------------------------- */
.faq { display: grid; gap: 12px; max-width: 820px; margin: 0 auto; }
.faq details {
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 4px 20px;
  transition: border-color .15s, box-shadow .15s;
}
.faq details[open] {
  border-color: var(--c-border-strong);
  box-shadow: var(--shadow-sm);
}
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 28px 16px 0;
  font-weight: 600;
  position: relative;
  color: var(--c-text);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  font-size: 1.4rem; font-weight: 400; color: var(--c-primary);
  transition: transform .2s;
}
.faq details[open] summary::after { content: "−"; }
.faq details > p { margin: 0 0 16px; color: var(--c-text-muted); }

/* cta band --------------------------------------------------------------- */
.cta-band {
  padding: clamp(48px, 6vw, 72px) 0;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-600));
  color: #fff;
}
.cta-band-inner { text-align: center; }
.cta-band h2 { color: #fff; margin: 0 0 10px; }
.cta-band p { color: rgba(255,255,255,.85); font-size: 1.08rem; margin: 0 0 22px; }
.cta-band-actions { display: inline-flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.cta-band .btn-primary {
  background: #fff; color: var(--c-primary-600);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .15);
}
.cta-band .btn-primary:hover { background: #fff; color: var(--c-primary); }
.cta-band .btn-ghost {
  border-color: rgba(255,255,255,.6); color: #fff;
}
.cta-band .btn-ghost:hover { background: rgba(255,255,255,.1); border-color: #fff; color: #fff; }

/* footer ----------------------------------------------------------------- */
.footer {
  padding: 56px 0 24px;
  background: var(--c-bg-alt);
  border-top: 1px solid var(--c-border);
  color: var(--c-text-muted);
  font-size: 0.95rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--c-border);
}
@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }

.footer-brand p { margin: 12px 0 0; max-width: 32ch; }
.footer h4 { margin: 0 0 12px; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.footer ul a { color: var(--c-text-muted); }
.footer ul a:hover { color: var(--c-primary); }

.footer-bottom {
  padding-top: 18px;
  display: flex; flex-wrap: wrap; gap: 8px 24px;
  justify-content: space-between;
  font-size: 0.9rem;
  color: var(--c-text-soft);
}
.footer-bottom p { margin: 0; }

/* legal documents (оферта, политика и т.п.) ------------------------------- */
.legal { padding: clamp(40px, 6vw, 72px) 0 clamp(60px, 7vw, 88px); }
.legal-doc { max-width: 820px; }
.legal-doc h1 {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  margin: 0 0 28px;
}
.legal-doc h2 {
  font-size: 1.25rem;
  margin: 36px 0 12px;
  padding-top: 12px;
  border-top: 1px solid var(--c-border);
}
.legal-doc h3 {
  font-size: 1.05rem;
  margin: 22px 0 8px;
}
.legal-doc p {
  margin: 0 0 12px;
  color: var(--c-text);
  line-height: 1.65;
}
.legal-doc ul {
  margin: 0 0 16px;
  padding-left: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.legal-doc ul li {
  position: relative;
  padding-left: 24px;
  color: var(--c-text-muted);
  line-height: 1.6;
}
.legal-doc ul li::before {
  content: "";
  position: absolute;
  left: 6px; top: 0.65em;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--c-primary);
}
.legal-doc code {
  font-size: 0.88em;
}
.legal-doc a { font-weight: 500; }
.legal-meta {
  font-size: 0.9rem;
  color: var(--c-text-soft);
  margin: 0 0 12px;
}
.legal-terms {
  margin: 0 0 24px;
  display: grid;
  gap: 14px;
}
.legal-terms dt {
  font-weight: 700;
  color: var(--c-text);
}
.legal-terms dd {
  margin: 4px 0 0;
  padding-left: 0;
  color: var(--c-text-muted);
  line-height: 1.6;
}
.legal-requisites {
  background: var(--c-bg-elevated);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 22px 24px;
}
.legal-requisites dt { font-size: 0.78rem; color: var(--c-text-soft); text-transform: uppercase; letter-spacing: 0.04em; }
.legal-requisites dd { font-size: 1rem; color: var(--c-text); margin: 2px 0 0; }

/* respect motion preference */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
  html { scroll-behavior: auto; }
}