:root {
  --bg: #f5f6f8; --panel: #fff; --text: #17191c; --muted: #646b75; --line: #e1e4e9;
  --accent: #0e9690; --accent-text: #0a6f6a; --accent-soft: #e0f4f2;
  --brand: linear-gradient(45deg, #ff2d95, #c23cff, #6a5cff);
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111317; --panel: #1b1e24; --text: #eceef1; --muted: #9aa2ad; --line: #2e333b; --accent-text: #4fd0c9; --accent-soft: #123331; }
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; overflow-x: clip; }
body { background: var(--bg); color: var(--text); font: 16px/1.4 -apple-system, "Segoe UI", Roboto, Arial, sans-serif; -webkit-text-size-adjust: 100%; }
button { font: inherit; color: inherit; cursor: pointer; }
a { color: inherit; }
button:focus-visible, a:focus-visible { outline: 3px solid #6a5cff; outline-offset: 2px; }

.head { position: sticky; top: 0; z-index: 2; display: flex; align-items: center; gap: 10px; background: var(--panel); border-bottom: 1px solid var(--line); padding: 10px 16px; padding-top: max(10px, env(safe-area-inset-top)); font-weight: 700; }
.head img { width: 30px; height: 30px; border-radius: 8px; }
.head.screen { background: var(--accent); color: #fff; border: 0; }
.head .back { background: none; border: 0; color: #fff; font-size: 24px; line-height: 1; padding: 0 6px 2px 0; }
.main { max-width: 760px; margin: 0 auto; padding: 16px; padding-bottom: max(16px, env(safe-area-inset-bottom)); }

/* баннер из MessengerBanner в repetit-universal-app */
.banner { background: var(--brand); color: #fff; border-radius: 18px; padding: 18px; margin-bottom: 14px; animation: pop .4s ease; }
.banner p { margin: 0 0 14px; font-size: 19px; font-weight: 600; line-height: 1.25; }
.banner p span { color: rgba(255, 255, 255, .82); font-weight: 400; }
.brow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; }
.brow.two { grid-template-columns: repeat(2, 1fr); margin-top: 9px; }
.bbtn { min-height: 52px; background: #fff; color: #111; border: 0; border-radius: 12px; display: flex; gap: 6px; align-items: center; justify-content: center; font-weight: 600; font-size: 14px; line-height: 1.15; text-decoration: none; padding: 4px; transition: transform .12s; }
.bbtn:active { transform: scale(.97); }
.bbtn img { width: 30px; height: 30px; border-radius: 7px; flex: none; }
.bbtn svg { flex: none; }
.brow.two .bbtn { min-height: 58px; padding: 6px 10px; text-align: left; }
.bbtn small { display: block; margin-top: 2px; font-weight: 400; font-size: 12px; color: #5b6168; }

.card { display: block; width: 100%; text-align: left; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 14px; margin-bottom: 10px; text-decoration: none; }
.card b { display: block; margin-bottom: 2px; }
.card span, .muted { color: var(--muted); font-size: 14px; }
button.card:active { background: var(--accent-soft); }

.bell { display: inline-block; font-size: 58px; animation: ring 1.6s ease infinite; transform-origin: 50% 10%; }
.ok { width: 76px; height: 76px; }
.ok circle { fill: var(--accent-soft); }
.ok path { stroke: var(--accent); stroke-width: 6; fill: none; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 60; animation: draw .7s .15s ease both; }

.btn { display: block; width: 100%; border: 0; border-radius: 12px; padding: 14px; font-weight: 600; background: var(--line); text-align: center; text-decoration: none; }
.btn.go { background: var(--accent); color: #fff; }
.toggle { display: flex; align-items: center; justify-content: space-between; font-weight: 600; }
.toggle i { position: relative; flex: none; width: 50px; height: 30px; border-radius: 15px; background: var(--line); transition: background .2s; }
.toggle i::after { content: ""; position: absolute; left: 3px; top: 3px; width: 24px; height: 24px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0, 0, 0, .3); transition: transform .2s; }
.toggle[aria-checked="true"] i { background: var(--accent); }
.toggle[aria-checked="true"] i::after { transform: translateX(20px); }
.toggle:disabled { opacity: .6; }
.btn + .btn { margin-top: 8px; }
.err { color: #c62828; margin-top: 10px; font-size: 14px; }

.bub { max-width: 84%; padding: 9px 12px; border-radius: 14px; margin-bottom: 8px; background: var(--panel); border: 1px solid var(--line); animation: slide .35s ease both; }
.bub.me { margin-left: auto; background: var(--accent-soft); border-color: transparent; }
.bub.new { box-shadow: 0 0 0 2px #ff2d95; }
.big { display: block; font-size: 28px; font-weight: 800; color: var(--text); line-height: 1.2; }
.links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.links button { border: 1.5px solid var(--accent); color: var(--accent-text); background: none; border-radius: 99px; padding: 8px 14px; font-weight: 600; font-size: 14px; }
.screen-body { animation: slide .3s ease; }
.screen-body.still, .screen-body.still .bub { animation: none; }

/* инструкции */
.guide { position: fixed; inset: 0; z-index: 10; display: flex; flex-direction: column; overflow-x: hidden; background: #0d131e; color: #fff; padding: 16px; padding-top: max(16px, env(safe-area-inset-top)); padding-bottom: max(16px, env(safe-area-inset-bottom)); overflow-y: auto; animation: fade .25s; }
.guide .close { position: fixed; top: max(12px, env(safe-area-inset-top)); right: 12px; width: 40px; height: 40px; border: 0; border-radius: 50%; background: rgba(255, 255, 255, .14); color: #fff; font-size: 20px; z-index: 11; }
.guide p { color: rgba(255, 255, 255, .78); margin: 10px 0 0; font-size: 14px; }
.guide .btn { margin-top: 12px; }
.guide .btn:not(.go) { background: rgba(255, 255, 255, .14); color: #fff; }
/* инструкции: подпись шага, большой макет устройства, листание */
.guide { align-items: center; }
.g-text { width: 100%; max-width: 560px; min-height: 92px; text-align: center; margin-bottom: 8px; padding: 0 34px; flex: none; }
.guide h2 { margin: 2px 0 0; font-size: 20px; line-height: 1.2; }
.guide .g-text p { margin: 4px 0 0; min-height: 20px; }
.g-box { position: relative; flex: none; margin: auto 0; }
.g-stage { position: absolute; left: 0; top: 0; transform-origin: 0 0; }
.g-foot { width: 100%; max-width: 420px; margin-top: 12px; flex: none; }
.g-nav { display: flex; align-items: center; justify-content: center; gap: 12px; }
.g-nav > button { width: 44px; height: 44px; border: 0; border-radius: 50%; background: rgba(255, 255, 255, .14); color: #fff; font-size: 24px; line-height: 1; }
#g-dots { display: flex; gap: 0; flex-wrap: wrap; justify-content: center; }
#g-dots button { width: 24px; height: 24px; padding: 0; border: 0; background: none; position: relative; }
#g-dots button::after { content: ""; position: absolute; left: 8px; top: 8px; width: 8px; height: 8px; border-radius: 50%; background: rgba(255, 255, 255, .3); }
#g-dots button[aria-current="true"]::after { background: #ff5bb0; transform: scale(1.3); }
.g-note { text-align: center; }
.g-msg { color: #ff8a80; text-align: center; font-size: 14px; min-height: 20px; margin-top: 8px; }
.guide:focus { outline: none; }
.arrow[hidden] { display: none; }
.arrow.down.center { right: auto; left: 50%; margin-left: -14px; }
.s-tools { flex: none; display: flex; justify-content: space-around; align-items: center; padding: 0 10px 12px; background: #f2f2f6; color: #2f7bf6; font-size: 18px; }
.s-round.small { width: 26px; height: 26px; font-size: 13px; }
.s-desk.plain { height: 400px; background: linear-gradient(135deg, #1c5fa8, #5ba5d9); }
.s-desk.plain .s-window { left: 14px; right: 14px; top: 14px; bottom: 14px; }
.s-desk.plain .s-title .s-addr { margin: 0 6px; }
.s-macmenu.right-top { left: auto; right: 24px; top: 50px; width: 300px; }
.s-macmenu.left-top { left: 24px; top: 50px; width: 280px; }
.s-pop.left { right: auto; left: 10px; }
.s-swrow { display: flex !important; justify-content: space-between; align-items: center; gap: 8px; }
.s-swrow i { flex: none; position: relative; width: 42px; height: 25px; border-radius: 13px; background: #34c759; }
.s-swrow i::after { content: ""; position: absolute; right: 2px; top: 2px; width: 21px; height: 21px; border-radius: 50%; background: #fff; }
@media (max-height: 620px) {
  .g-steps { display: none; }
  .g-text { min-height: 0; margin-bottom: 4px; padding-right: 44px; text-align: left; }
  .guide h2 { font-size: 17px; }
  .guide .g-text p { font-size: 13px; min-height: 0; }
  .g-nav > button { width: 36px; height: 36px; font-size: 20px; }
  .g-note { display: none; }
}
.g-steps { flex: none; align-self: stretch; display: flex; justify-content: center; gap: 4px; margin: 4px 0 12px; padding: 4px 48px 0 0; list-style: none; counter-reset: st; }
.g-steps li { counter-increment: st; display: flex; align-items: center; gap: 4px; font-size: 12.5px; color: rgba(255, 255, 255, .55); }
.g-steps li + li::before { content: ""; width: 8px; height: 2px; background: rgba(255, 255, 255, .25); margin-right: 1px; }
.g-steps li::after { order: -1; content: counter(st); width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; font-weight: 700; font-size: 12px; background: rgba(255, 255, 255, .16); }
.g-steps li + li::before { order: -2; }
.g-steps li.now { color: #fff; font-weight: 600; }
.g-steps li.now::after { background: #ff5bb0; color: #111; }
.g-steps li.done { color: #fff; }
.g-steps li.done::after { content: "✓"; background: #3cc4bd; color: #06201f; }
.g-screen { width: 100%; max-width: 420px; margin: auto; text-align: center; animation: pop .3s ease; }
.g-screen h2 { font-size: 24px; margin: 12px 0 8px; }
.guide .g-screen p { margin: 0 0 18px; font-size: 16px; }
.g-screen .err { color: #ff8a80; }
.g-icon { width: 84px; height: 84px; border-radius: 20px; }

/* макеты устройств: цвета постоянные, как на настоящем устройстве */
.s-phone, .s-desk { color: #111; font-size: 14px; line-height: 1.3; text-align: left; }
.s-phone { width: 300px; height: 600px; padding: 8px; border-radius: 42px; background: #000; box-shadow: 0 0 0 2px rgba(255, 255, 255, .28), 0 20px 50px rgba(0, 0, 0, .5); }
.s-screen { position: relative; width: 100%; height: 100%; overflow: hidden; border-radius: 34px; background: #fff; display: flex; flex-direction: column; animation: fade .25s; }
.s-status { flex: none; height: 34px; padding: 10px 22px 0; display: flex; justify-content: space-between; font-size: 12px; font-weight: 600; position: relative; z-index: 3; }
.ios .s-status::after { content: ""; position: absolute; left: 50%; top: 7px; width: 76px; height: 21px; margin-left: -38px; border-radius: 12px; background: #000; }
.s-status.dark { color: #fff; margin-bottom: -34px; }
.s-page { flex: 1; min-height: 0; overflow: hidden; background: #f5f6f8; position: relative; display: flex; flex-direction: column; }
.s-bar { flex: none; display: flex; align-items: center; gap: 8px; padding: 8px 12px 14px; background: #f2f2f6; border-top: 1px solid #d9dade; }
.s-bar.top { padding: 4px 12px 8px; border-top: 0; border-bottom: 1px solid #d9dade; }
.s-addr { flex: 1; min-width: 0; background: #fff; border-radius: 16px; padding: 7px 8px; text-align: center; font-size: 12.5px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.s-round { position: relative; flex: none; width: 36px; height: 36px; border-radius: 50%; background: #fff; display: grid; place-items: center; font-weight: 800; box-shadow: 0 1px 3px rgba(0, 0, 0, .18); }
.s-head { flex: none; display: flex; align-items: center; gap: 8px; background: #fff; padding: 8px 12px; font-weight: 700; border-bottom: 1px solid #e6e8ec; }
.s-head img { width: 26px; height: 26px; border-radius: 7px; }
.s-pad { padding: 10px; }
.s-banner { background: var(--brand); color: #fff; border-radius: 14px; padding: 12px; margin-bottom: 8px; }
.s-banner p { margin: 0 0 9px; font-weight: 600; font-size: 15px; line-height: 1.2; color: #fff; }
.s-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.s-row.two { grid-template-columns: 1fr 1fr; margin-top: 6px; }
.s-row i { position: relative; background: #fff; color: #111; border-radius: 8px; padding: 9px 2px; text-align: center; font-style: normal; font-weight: 600; font-size: 11.5px; }
.s-card { background: #fff; border-radius: 12px; padding: 10px; margin-bottom: 8px; font-size: 13px; color: #555; }
.s-card b { display: block; color: #111; }
.s-dim { position: absolute; inset: 0; background: rgba(0, 0, 0, .42); z-index: 4; animation: fade .25s; }
.s-dim.light { background: rgba(0, 0, 0, .12); }
.s-pop { position: absolute; z-index: 5; right: 10px; bottom: 66px; width: 200px; padding: 6px; border-radius: 16px; background: #f4f4f7; box-shadow: 0 10px 28px rgba(0, 0, 0, .35); animation: pop .25s; }
.s-pop.top { bottom: auto; top: 82px; }
.s-pop span, .s-list span, .s-macmenu span { position: relative; display: block; padding: 9px 11px; border-radius: 9px; }
.s-phone .pick, .s-desk .pick { background: #ffe3f2; font-weight: 700; }
.s-sheet { position: absolute; left: 0; right: 0; bottom: 0; z-index: 5; padding: 16px; background: #f2f2f6; border-radius: 22px 22px 0 0; animation: rise .35s cubic-bezier(.2, .8, .3, 1); }
.s-ai { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.s-ic { width: 46px; height: 46px; border-radius: 11px; }
.s-list span { background: #fff; margin-bottom: 5px; }
.s-add { flex: 1; padding: 8px 14px; background: #f2f2f6; animation: rise .3s; }
.s-addbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; font-size: 13px; }
.s-addbar > span:first-child { color: #2f7bf6; }
.s-addbar .blue { position: relative; color: #2f7bf6; font-weight: 700; padding: 4px 6px; border-radius: 8px; }
.s-add .s-card { color: #666; }
.s-switch { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.s-add .s-switch { color: #111; }
.s-switch i, .s-set i { flex: none; position: relative; width: 42px; height: 25px; border-radius: 13px; background: #34c759; font-style: normal; }
.s-switch i::after, .s-set i::after { content: ""; position: absolute; right: 2px; top: 2px; width: 21px; height: 21px; border-radius: 50%; background: #fff; }
.s-home { flex: 1; position: relative; display: flex; flex-direction: column; justify-content: flex-end; padding: 44px 16px 34px; background: linear-gradient(170deg, #27467f, #6c4e9a 55%, #d17a78); }
.s-home.android { background: linear-gradient(170deg, #154d4a, #0d7f78 55%, #76b7a7); }
.s-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px 12px; }
.s-app { text-align: center; color: #fff; font-size: 10.5px; }
.s-app .sq { position: relative; display: block; aspect-ratio: 1; border-radius: 14px; background: rgba(255, 255, 255, .28); margin-bottom: 4px; }
.s-app img { display: block; width: 100%; height: 100%; border-radius: inherit; }
.s-app.drop .sq { animation: s-drop 1s cubic-bezier(.2, .8, .3, 1.2) both; }
.s-app .s-gear { display: grid; place-items: center; font-size: 26px; font-weight: 400; background: #8e8e93; }
.s-badge { position: absolute; top: -6px; right: -6px; min-width: 22px; height: 22px; padding: 0 5px; border-radius: 11px; background: #ff3b30; color: #fff; font: 700 13px/22px -apple-system, "Segoe UI", sans-serif; text-align: center; animation: s-badge .5s .8s cubic-bezier(.3, 1.6, .5, 1) both; }
.s-notif { position: absolute; z-index: 6; left: 8px; right: 8px; top: 40px; padding: 10px 12px; border-radius: 18px; background: rgba(255, 255, 255, .97); color: #111; font-size: 13px; box-shadow: 0 8px 22px rgba(0, 0, 0, .3); animation: s-ndrop .5s .3s cubic-bezier(.2, .8, .3, 1.1) both; }
.s-notif b { display: block; font-size: 14px; }
.s-nh { display: flex; align-items: center; gap: 6px; color: #666; font-size: 11.5px; margin-bottom: 3px; }
.s-nh img { width: 16px; height: 16px; border-radius: 4px; }
.s-desk .s-notif { left: auto; right: 10px; top: 32px; width: 290px; }
.s-center { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 7px; padding: 18px; text-align: center; animation: pop .3s; background: #fff; }
.s-center h3 { margin: 4px 0 8px; font-size: 18px; line-height: 1.2; }
.s-bell { font-size: 52px; animation: ring 1.6s ease infinite; transform-origin: 50% 10%; }
.s-chip { font-size: 12px; background: #e0f4f2; color: #0a6f6a; border-radius: 99px; padding: 3px 11px; font-weight: 600; }
.s-btn { position: relative; display: block; width: 100%; padding: 12px; border-radius: 99px; background: #0e9690; color: #fff; font-weight: 600; text-align: center; }
.s-btn.blue { background: #2f7bf6; }
.s-btn.gray { background: #e4e5e9; color: #111; font-weight: 500; }
.s-btn + .s-btn { margin-top: 7px; }
.s-alert { position: absolute; z-index: 5; left: 50%; top: 50%; width: 256px; margin: -105px 0 0 -128px; padding: 18px 14px 12px; border-radius: 22px; background: #f5f5f7; text-align: center; animation: pop .25s; }
.s-alert > b { display: block; margin-bottom: 12px; font-size: 15px; line-height: 1.25; }
.s-alert.wide { width: 300px; margin-left: -150px; text-align: left; }
.s-settings { flex: 1; padding: 8px 14px; background: #f2f2f6; }
.s-settings.slide { animation: slide .3s; }
.s-settings h4 { margin: 2px 0 12px; font-size: 22px; }
.s-set { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 8px; background: #fff; padding: 12px; border-radius: 11px; margin-bottom: 7px; }
.s-set em { color: #aaa; font-style: normal; }
.s-desk { position: relative; width: 620px; height: 430px; border-radius: 12px; overflow: hidden; background: linear-gradient(135deg, #3a4d7a, #7b5a93 60%, #c48a78); box-shadow: 0 0 0 2px rgba(255, 255, 255, .28), 0 20px 50px rgba(0, 0, 0, .5); }
.s-menubar { position: absolute; inset: 0 0 auto 0; z-index: 6; height: 26px; display: flex; align-items: center; gap: 4px; padding: 0 10px; background: rgba(255, 255, 255, .85); font-size: 13px; }
.s-menubar > * { position: relative; padding: 2px 8px; border-radius: 5px; }
.s-menubar .open { background: #2f7bf6; color: #fff; }
.s-window { position: absolute; left: 36px; right: 36px; top: 38px; bottom: 74px; display: flex; flex-direction: column; overflow: hidden; border-radius: 10px; background: #fff; box-shadow: 0 12px 30px rgba(0, 0, 0, .35); animation: pop .3s; }
.s-title { flex: none; display: flex; align-items: center; gap: 5px; height: 34px; padding: 0 10px; background: #eceef1; }
.s-title i { width: 10px; height: 10px; border-radius: 50%; background: #ff5f57; }
.s-title i:nth-child(2) { background: #febc2e; }
.s-title i:nth-child(3) { background: #28c840; }
.s-title b { flex: 1; text-align: center; font-size: 13px; }
.s-title .s-addr { margin: 0 10px; padding: 3px 10px; border-radius: 7px; }
.s-dock { position: absolute; bottom: 8px; left: 50%; transform: translateX(-50%); z-index: 5; display: flex; gap: 8px; padding: 7px 10px; border-radius: 15px; background: rgba(255, 255, 255, .4); }
.s-dock u { position: relative; display: block; width: 42px; height: 42px; border-radius: 10px; }
.s-dock img { display: block; width: 100%; height: 100%; border-radius: inherit; }
.s-dock .fly { animation: s-fly 1.1s cubic-bezier(.2, .8, .3, 1) both; }
.s-macmenu { position: absolute; z-index: 7; top: 26px; left: 58px; width: 220px; padding: 6px; border-radius: 9px; background: #f4f4f6; box-shadow: 0 8px 24px rgba(0, 0, 0, .35); animation: fade .15s; }
.s-macmenu.right { left: 44px; top: 76px; }

/* куда нажать: рамка и касание */
.hl { position: relative; }
.hl::after { content: ""; position: absolute; inset: -5px; border-radius: 14px; border: 2.5px solid #ff2d95; animation: ping 1.3s ease-out infinite; pointer-events: none; }
.hl::before { content: ""; position: absolute; z-index: 2; left: 50%; top: 50%; width: 26px; height: 26px; margin: -13px; border-radius: 50%; background: rgba(255, 45, 149, .55); border: 2px solid #ff2d95; opacity: 0; animation: s-tap 3.4s .5s both; pointer-events: none; }
@keyframes ping { 0% { transform: scale(.94); opacity: 1; } 100% { transform: scale(1.12); opacity: 0; } }
@keyframes s-tap { 0% { transform: scale(1.8); opacity: 0; } 25% { transform: scale(1); opacity: 1; } 34% { transform: scale(.7); opacity: 1; } 44% { transform: scale(1); opacity: 1; } 70%, 100% { opacity: 0; } }
@keyframes s-drop { 0% { transform: translateY(-200px) scale(2.4); opacity: 0; } 25% { opacity: 1; } 75% { transform: none; } 88% { transform: scale(1.12); } 100% { transform: none; } }
@keyframes s-fly { 0% { transform: translate(-60px, -240px) scale(2.8); opacity: 0; } 15% { opacity: 1; } 72% { transform: none; } 82% { transform: translateY(-14px); } 100% { transform: none; } }
@keyframes s-ndrop { from { transform: translateY(-40px) scale(.96); opacity: 0; } to { transform: none; opacity: 1; } }
@keyframes s-badge { from { transform: scale(0); } to { transform: scale(1); } }

.arrow { position: fixed; z-index: 11; font-size: 46px; line-height: 1; font-weight: 800; color: #ff5bb0; pointer-events: none; }
.arrow.down { right: 18px; bottom: max(4px, env(safe-area-inset-bottom)); animation: nudge-d 1s infinite; }
.arrow.up-left { left: 12px; top: 4px; animation: nudge-u 1s infinite; }
.arrow.up-right { right: 64px; top: 4px; animation: nudge-u 1s infinite; }

@keyframes pop { from { transform: scale(.96); opacity: 0; } }
@keyframes fade { from { opacity: 0; } }
@keyframes slide { from { transform: translateX(24px); opacity: 0; } }
@keyframes rise { from { transform: translateY(100%); } }
@keyframes draw { from { stroke-dashoffset: 60; } to { stroke-dashoffset: 0; } }
@keyframes bump { 50% { transform: scale(1.15); } }
@keyframes ring { 0%, 55%, 100% { transform: rotate(0); } 10%, 30% { transform: rotate(16deg); } 20%, 40% { transform: rotate(-16deg); } }
@keyframes fing { 0%, 25% { transform: scale(1.5); opacity: 0; } 50% { transform: scale(1); opacity: 1; } 65% { transform: scale(.72); opacity: 1; } 85% { transform: scale(1); opacity: 1; } 100% { opacity: 0; } }
@keyframes nudge-d { 50% { transform: translateY(10px); } }
@keyframes nudge-u { 50% { transform: translateY(-8px); } }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition: none !important; }
}