*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }

  :root{
    --canvas:#FBFBFD; --band:#F4F5F8; --ink:#0B0B0F; --body:#3C3C43; --cap:#6E6E73;
    --line:rgba(15,23,42,0.09); --line-strong:rgba(15,23,42,0.14);
    --accent:#0A84FF; --accent-deep:#0A63E6; --accent-text:#0A63E6;
    --mono-ink:#1C1C1E; --mono-bg:#EEF0F3; --proto:#6A6A6E;
    --card:rgba(255,255,255,0.72); --card-solid:#FEFEFF;
    --frost:rgba(251,251,253,0.72); --frost-solid:#FBFBFD;
    --shadow-sm:0 1px 2px rgba(10,55,120,0.05);
    --shadow-lg:0 1px 2px rgba(10,55,120,0.05), 0 14px 34px -10px rgba(10,55,120,0.16);
    --shadow-dev:0 2px 6px rgba(10,55,120,0.10), 0 34px 66px -22px rgba(10,55,120,0.30);
    --bezel:#0C0C0E;
    --bloom:radial-gradient(60% 52% at 62% 26%, #E7F0FF 0%, rgba(231,240,255,0) 68%);
    --sans:-apple-system,"SF Pro Display","SF Pro Text",system-ui,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
    --mono:ui-monospace,"SF Mono","Menlo","Consolas","Liberation Mono",monospace;
    --maxw:1120px;
  }
  @media (prefers-color-scheme:dark){
    :root{
      --canvas:#0B0D12; --band:#0F1219; --ink:#F2F2F7; --body:rgba(235,235,245,0.78); --cap:rgba(235,235,245,0.55);
      --line:rgba(255,255,255,0.10); --line-strong:rgba(255,255,255,0.16);
      --accent:#409CFF; --accent-deep:#2F7BF5; --accent-text:#409CFF;
      --mono-ink:#E4E5E9; --mono-bg:#1B1D24; --proto:rgba(235,235,245,0.62);
      --card:rgba(20,22,28,0.72); --card-solid:#14161C;
      --frost:rgba(11,13,18,0.66); --frost-solid:#0B0D12;
      --shadow-sm:0 1px 2px rgba(0,0,0,0.4);
      --shadow-lg:0 1px 2px rgba(0,0,0,0.4), 0 14px 34px -10px rgba(0,0,0,0.5);
      --shadow-dev:0 2px 6px rgba(0,0,0,0.5), 0 34px 66px -22px rgba(0,0,0,0.6);
      --bezel:#000000;
      --bloom:radial-gradient(60% 52% at 62% 26%, rgba(24,54,112,0.34) 0%, rgba(24,54,112,0) 68%);
    }
  }

  html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
  @media (prefers-reduced-motion:reduce){ html{ scroll-behavior:auto; } }
  body{
    font-family:var(--sans); background:var(--canvas); color:var(--body);
    line-height:1.55; letter-spacing:0; -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
    font-size:18px; overflow-x:hidden;
  }
  .wrap{ max-width:var(--maxw); margin:0 auto; padding:0 28px; }
  h1,h2,h3{ color:var(--ink); font-weight:700; letter-spacing:-0.02em; line-height:1.08; }
  a{ color:var(--accent-text); text-decoration:none; }
  a:hover{ text-decoration:underline; text-underline-offset:3px; }
  section{ position:relative; }
  .eyebrow{ font-size:14px; font-weight:590; letter-spacing:0.01em; color:var(--cap); }
  .idx{ font-family:var(--mono); font-size:12.5px; color:var(--accent-text); letter-spacing:0.02em; }
  .lead{ font-size:19px; color:var(--body); max-width:60ch; }
  .mono{ font-family:var(--mono); font-variant-numeric:tabular-nums; }

  /* ---------- nav ---------- */
  nav{ position:sticky; top:0; z-index:50; transition:background .25s ease, border-color .25s ease, backdrop-filter .25s ease; border-bottom:1px solid transparent; }
  nav.scrolled{ background:var(--frost); border-bottom:1px solid var(--line); backdrop-filter:saturate(180%) blur(20px); -webkit-backdrop-filter:saturate(180%) blur(20px); }
  @supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){ nav.scrolled{ background:var(--frost-solid); } }
  .nav-in{ display:flex; align-items:center; gap:22px; height:60px; }
  .brand{ display:flex; align-items:center; gap:10px; font-weight:640; color:var(--ink); font-size:17px; letter-spacing:-0.01em; }
  .brand img{ width:28px; height:28px; border-radius:7px; box-shadow:var(--shadow-sm); }
  .nav-links{ display:flex; gap:22px; margin-left:auto; }
  .nav-links a{ color:var(--body); font-size:15px; font-weight:500; }
  .nav-links a:hover{ color:var(--ink); text-decoration:none; }
  .btn{ display:inline-flex; align-items:center; justify-content:center; gap:8px; font-family:var(--sans); font-weight:600; font-size:15px; border:none; border-radius:11px; padding:11px 18px; cursor:pointer; transition:transform .12s ease, filter .12s ease, background .12s ease; text-decoration:none; }
  .btn:hover{ text-decoration:none; }
  .btn-primary{ background:var(--accent); color:#fff; box-shadow:var(--shadow-sm); }
  .btn-primary:hover{ filter:brightness(1.05); }
  .btn-primary:active{ transform:scale(0.98); background:var(--accent-deep); }
  .btn-ghost{ background:transparent; color:var(--ink); border:1px solid var(--line-strong); }
  .btn-ghost:hover{ border-color:var(--accent); color:var(--accent); }
  .btn-ghost:active{ transform:scale(0.98); }
  .nav-cta{ padding:9px 16px; }
  .nav-links a.hide-sm, .nav-cta{ }

  /* ---------- hero ---------- */
  .hero{ padding:64px 0 40px; }
  .hero-bloom{ position:absolute; inset:-60px 0 auto 0; height:720px; background:var(--bloom); z-index:0; pointer-events:none; }
  .hero-grid{ position:relative; z-index:1; display:grid; grid-template-columns:1fr 0.82fr; gap:40px; align-items:center; }
  .hero h1{ font-size:clamp(38px,6vw,60px); line-height:1.03; letter-spacing:-0.03em; margin:16px 0 20px; color:var(--ink); }
  .hero h1 .k{ position:relative; white-space:nowrap; }
  .hero h1 .k::after{ content:""; position:absolute; left:2%; right:2%; bottom:0.02em; height:0.085em; background:var(--accent); border-radius:3px; opacity:.9; }
  .hero .lead{ font-size:19px; margin-bottom:26px; }
  .hero-cta{ display:flex; gap:12px; flex-wrap:wrap; align-items:center; }
  .btn-lg{ padding:14px 24px; font-size:16px; border-radius:13px; }
  .trust-line{ margin-top:20px; font-size:13.5px; color:var(--cap); letter-spacing:0.01em; }
  .trust-line span{ color:var(--body); }

  /* ---------- device frames ---------- */
  .shot{ position:relative; }
  .device{ position:relative; background:var(--bezel); box-shadow:var(--shadow-dev); }
  .device .screen{ position:relative; overflow:hidden; background:linear-gradient(180deg,var(--band),var(--canvas)); }
  .device .screen img{ display:block; width:100%; height:100%; object-fit:cover; }
  .device .screen::after{ content:""; position:absolute; inset:0; box-shadow:inset 0 1px 0 rgba(255,255,255,0.28); pointer-events:none; }
  .shot[data-empty] .screen img{ display:none; }
  .ph{ position:absolute; inset:0; display:none; align-items:center; justify-content:center; color:var(--cap); font-size:13px; letter-spacing:0.06em; }
  .shot[data-empty] .ph{ display:flex; }

  .device-iphone{ width:min(300px,74vw); aspect-ratio:9/19.5; border-radius:14%/6.5%; padding:2.6%; margin:0 auto; }
  .device-iphone .screen{ width:100%; height:100%; border-radius:11%/5.2%; }
  .device-iphone .island{ position:absolute; top:2.4%; left:50%; transform:translateX(-50%); width:32%; height:3.3%; background:#000; border-radius:20px; z-index:3; }

  .device-ipad{ width:min(460px,86vw); aspect-ratio:3/4.05; border-radius:5.2%; padding:2.4%; margin:0 auto; }
  .device-ipad .screen{ width:100%; height:100%; border-radius:3.4%; }

  .mac{ width:min(560px,92vw); border-radius:14px; overflow:hidden; box-shadow:var(--shadow-dev); border:1px solid var(--line); margin:0 auto; background:var(--card-solid); }
  .mac-bar{ display:flex; align-items:center; gap:8px; padding:10px 12px; background:var(--band); border-bottom:1px solid var(--line); }
  .mac-dots{ display:flex; gap:7px; }
  .mac-dots i{ width:11px; height:11px; border-radius:50%; background:var(--line-strong); }
  .mac-url{ flex:1; margin-left:6px; background:var(--card-solid); border:1px solid var(--line); border-radius:7px; padding:5px 12px; font-family:var(--mono); font-size:12.5px; color:var(--cap); text-align:center; }
  .mac-url b{ color:var(--body); font-weight:500; }
  .mac .screen{ position:relative; aspect-ratio:3178/1528; overflow:hidden; background:linear-gradient(180deg,var(--band),var(--canvas)); }
  .mac-url:empty{ min-height:14px; }
  .mac .screen img{ display:block; width:100%; height:100%; object-fit:cover; }
  .shot[data-empty] .mac .screen img{ display:none; }

  /* hero device: the one perspective moment */
  .hero-device{ display:flex; justify-content:center; }
  .hero-device .device-iphone{ transform:perspective(1600px) rotateY(-7deg) rotateX(2.5deg); }
  @media (prefers-reduced-motion:no-preference){
    .hero-device .device-iphone{ animation:float 7s ease-in-out infinite; }
  }
  @keyframes float{ 0%,100%{ transform:perspective(1600px) rotateY(-7deg) rotateX(2.5deg) translateY(0); } 50%{ transform:perspective(1600px) rotateY(-7deg) rotateX(2.5deg) translateY(-9px); } }

  /* ---------- trust strip ---------- */
  .strip{ border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
  .strip-in{ display:flex; flex-wrap:wrap; gap:10px 26px; align-items:center; justify-content:center; padding:18px 0; font-size:14.5px; color:var(--body); }
  .strip-in b{ color:var(--ink); font-weight:590; }
  .strip-in .dot{ width:3px; height:3px; border-radius:50%; background:var(--cap); opacity:.6; }

  /* ---------- sections ---------- */
  .sec{ padding:76px 0; }
  .sec-head{ max-width:640px; margin-bottom:44px; }
  .sec-head h2{ font-size:clamp(28px,4vw,38px); letter-spacing:-0.02em; margin:10px 0 12px; }
  .sec-head p{ font-size:18px; color:var(--body); }
  .band{ background:var(--band); }

  /* ---------- feature rows ---------- */
  .frow{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; padding:44px 0; }
  .frow + .frow{ border-top:1px solid var(--line); }
  .frow.flip .fr-text{ order:2; }
  .fr-text .idx{ display:block; margin-bottom:12px; }
  .fr-text h3{ font-size:23px; font-weight:620; letter-spacing:-0.015em; margin-bottom:12px; display:flex; align-items:center; gap:11px; }
  .fr-text h3 svg{ width:22px; height:22px; color:var(--accent); flex:none; }
  .fr-text p{ font-size:17.5px; color:var(--body); max-width:46ch; }
  .fr-media{ display:flex; justify-content:center; }

  /* ---------- signature batching demo ---------- */
  .demo{ width:100%; max-width:400px; background:var(--card-solid); border:1px solid var(--line); border-radius:18px; box-shadow:var(--shadow-lg); overflow:hidden; }
  .demo-top{ display:flex; align-items:center; justify-content:space-between; padding:14px 16px; border-bottom:1px solid var(--line); }
  .demo-top .lbl{ font-size:13px; color:var(--cap); }
  .demo-top .pill{ font-family:var(--sans); font-weight:590; font-size:11.5px; color:var(--accent-text); background:color-mix(in srgb,var(--accent) 16%,transparent); padding:3px 10px; border-radius:999px; }
  .demo-count{ padding:18px 16px 6px; display:flex; align-items:baseline; gap:9px; }
  /* the number is JS-driven (staged, reduced-motion-guarded); defaults to 153 with no JS */
  .demo-count b{ font-family:var(--mono); font-variant-numeric:tabular-nums; font-size:40px; font-weight:600; color:var(--ink); letter-spacing:-0.01em; }
  .demo-count em{ font-style:normal; font-size:14px; color:var(--cap); }
  .demo-list{ padding:6px 12px 16px; display:flex; flex-direction:column; gap:7px; }
  .chip{ display:flex; align-items:center; gap:9px; font-family:var(--mono); font-size:12.5px; background:var(--mono-bg); border-radius:9px; padding:9px 11px; color:var(--mono-ink); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
  .chip .proto{ color:var(--proto); }
  .chip::before{ content:""; width:7px; height:7px; border-radius:50%; background:var(--accent); flex:none; }
  @media (prefers-reduced-motion:no-preference){
    .js .demo .chip{ opacity:0; transform:translateY(8px); }
    .js .demo.play .chip{ animation:chipIn .5s cubic-bezier(0.22,1,0.36,1) forwards; }
    .demo.play .chip:nth-child(1){ animation-delay:.05s } .demo.play .chip:nth-child(2){ animation-delay:.14s }
    .demo.play .chip:nth-child(3){ animation-delay:.23s } .demo.play .chip:nth-child(4){ animation-delay:.9s }
    .demo.play .chip:nth-child(5){ animation-delay:1.05s } .demo.play .chip:nth-child(6){ animation-delay:1.7s }
    .demo.play .chip:nth-child(7){ animation-delay:2.2s }
  }
  @keyframes chipIn{ to{ opacity:1; transform:none; } }

  /* ---------- feature mocks (purpose-built graphics, no screenshot needed) ---------- */
  .mock{ width:100%; max-width:400px; background:var(--card-solid); border:1px solid var(--line); border-radius:18px; box-shadow:var(--shadow-lg); overflow:hidden; }
  .mock-top{ display:flex; align-items:center; justify-content:space-between; padding:14px 16px; border-bottom:1px solid var(--line); }
  .mock-top .lbl{ font-size:13px; color:var(--cap); }
  .mock-top .pill{ font-family:var(--sans); font-weight:590; font-size:11.5px; color:var(--accent-text); background:color-mix(in srgb,var(--accent) 16%,transparent); padding:3px 10px; border-radius:999px; }
  .mock-body{ padding:16px; }
  .mock-cta{ margin-top:16px; display:flex; align-items:center; justify-content:center; gap:8px; background:var(--accent); color:#fff; font-weight:600; font-size:13.5px; border-radius:11px; padding:11px; }
  .mock-cta svg{ width:15px; height:15px; }
  /* tabs into a list (02) */
  .tabs{ display:flex; flex-direction:column; gap:8px; }
  .tab{ display:flex; align-items:center; gap:10px; font-size:13px; color:var(--body); background:var(--mono-bg); border-radius:9px; padding:9px 11px; }
  .tab .fav{ width:15px; height:15px; border-radius:5px; flex:none; }
  .tab.more{ color:var(--cap); }
  /* saved sets (03) */
  .sets{ display:flex; flex-direction:column; gap:9px; }
  .set{ display:flex; align-items:center; gap:12px; background:var(--mono-bg); border-radius:12px; padding:11px 13px; }
  .set .sico{ width:32px; height:32px; border-radius:9px; background:color-mix(in srgb,var(--accent) 15%,transparent); color:var(--accent-text); display:flex; align-items:center; justify-content:center; flex:none; }
  .set .sico svg{ width:16px; height:16px; }
  .set .meta{ display:flex; flex-direction:column; }
  .set .sn{ font-size:14px; font-weight:590; color:var(--ink); }
  .set .sc{ font-family:var(--mono); font-size:11.5px; color:var(--cap); margin-top:1px; }
  .set .chev{ margin-left:auto; color:var(--cap); display:flex; }
  .set .chev svg{ width:16px; height:16px; }
  /* smart paste (04) */
  .paste{ font-size:13.5px; line-height:1.75; color:var(--body); background:var(--mono-bg); border-radius:12px; padding:13px; }
  .paste .u{ font-family:var(--mono); font-size:12px; color:var(--accent-text); background:color-mix(in srgb,var(--accent) 13%,transparent); border-radius:5px; padding:1px 5px; }

  /* ---------- how it works ---------- */
  .steps{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; counter-reset:st; }
  .step{ position:relative; padding-top:14px; }
  .step .n{ font-family:var(--mono); font-size:13px; color:var(--accent-text); }
  .step h3{ color:var(--ink); font-size:18px; font-weight:600; letter-spacing:-0.01em; margin:8px 0 6px; }
  .step p{ font-size:15.5px; color:var(--body); }
  .step-note{ margin-top:26px; font-size:14.5px; color:var(--cap); }

  /* ---------- showcase ---------- */
  .showcase{ display:flex; flex-direction:column; gap:38px; align-items:center; }
  .show-row{ display:flex; gap:40px; align-items:flex-end; justify-content:center; flex-wrap:wrap; width:100%; }
  .show-row .device-iphone{ width:min(228px,56vw); margin:0; }
  .show-row .device-ipad{ width:min(360px,82vw); margin:0; }
  .show-mac{ width:100%; display:flex; justify-content:center; }
  .show-mac .mac{ width:min(760px,100%); }

  /* ---------- pricing ---------- */
  .price-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:20px; max-width:680px; }
  .price{ background:var(--card-solid); border:1px solid var(--line); border-radius:18px; padding:28px; box-shadow:var(--shadow-sm); }
  .price .plan{ font-size:15px; color:var(--cap); font-weight:590; }
  .price .amt{ font-family:var(--mono); font-variant-numeric:tabular-nums; font-size:30px; font-weight:620; color:var(--ink); margin:10px 0 4px; letter-spacing:-0.01em; }
  .price .amt .per{ font-family:var(--sans); font-size:16px; color:var(--cap); font-weight:500; }
  .price .sub{ font-size:14.5px; color:var(--body); }
  .price-cta{ margin-top:26px; display:flex; gap:14px; align-items:center; flex-wrap:wrap; }
  .price-cta .aside{ font-size:14px; color:var(--cap); }

  /* ---------- privacy (frosted) ---------- */
  .privacy-card{ background:var(--card); border:1px solid var(--line); border-radius:20px; padding:34px; backdrop-filter:blur(20px); -webkit-backdrop-filter:blur(20px); box-shadow:var(--shadow-lg); max-width:720px; }
  @supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){ .privacy-card{ background:var(--card-solid); } }
  .privacy-card h2{ font-size:26px; margin-bottom:12px; display:flex; align-items:center; gap:12px; }
  .privacy-card h2 svg{ width:26px; height:26px; color:var(--accent); }
  .privacy-card p{ font-size:17.5px; color:var(--body); max-width:56ch; }

  /* ---------- FAQ ---------- */
  .faq{ max-width:780px; }
  .faq details{ border-top:1px solid var(--line); padding:4px 0; }
  .faq details:last-child{ border-bottom:1px solid var(--line); }
  .faq summary{ list-style:none; cursor:pointer; padding:20px 40px 20px 0; position:relative; font-size:18px; font-weight:590; color:var(--ink); letter-spacing:-0.01em; }
  .faq summary::-webkit-details-marker{ display:none; }
  .faq summary::after{ content:""; position:absolute; right:6px; top:50%; width:11px; height:11px; border-right:2px solid var(--cap); border-bottom:2px solid var(--cap); transform:translateY(-70%) rotate(45deg); transition:transform .2s ease; }
  .faq details[open] summary::after{ transform:translateY(-30%) rotate(225deg); }
  .faq .ans{ padding:0 40px 22px 0; font-size:16.5px; color:var(--body); max-width:64ch; }

  /* ---------- more apps ---------- */
  .apps-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:18px; }
  .app-card{ display:flex; gap:16px; align-items:center; background:var(--card-solid); border:1px solid var(--line); border-radius:16px; padding:18px; box-shadow:var(--shadow-sm); transition:transform .15s ease, border-color .15s ease; }
  .app-card:hover{ transform:translateY(-2px); border-color:var(--line-strong); text-decoration:none; }
  .app-ico{ width:56px; height:56px; border-radius:13px; flex:none; display:flex; align-items:center; justify-content:center; font-weight:700; font-size:22px; color:#fff; box-shadow:var(--shadow-sm); overflow:hidden; }
  .app-ico img{ width:100%; height:100%; object-fit:cover; }
  .app-meta{ display:flex; flex-direction:column; }
  .app-meta .an{ color:var(--ink); font-weight:620; font-size:17px; letter-spacing:-0.01em; }
  .app-meta .at{ color:var(--body); font-size:14.5px; margin-top:2px; }
  .app-meta .go{ color:var(--accent-text); font-size:13.5px; margin-top:7px; display:inline-block; }

  /* ---------- what-is (answer-first definition) ---------- */
  .whatis .def{ font-size:clamp(21px,2.8vw,27px); font-weight:620; letter-spacing:-0.015em; color:var(--ink); line-height:1.32; max-width:26ch; margin-bottom:22px; }
  .whatis .tldr{ font-size:18px; color:var(--body); max-width:66ch; margin-bottom:14px; }
  .whatis .mech{ font-size:16.5px; color:var(--body); max-width:66ch; }
  .whatis .mech b{ color:var(--ink); font-weight:590; }

  /* ---------- use cases ---------- */
  .uc-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:15px 40px; max-width:960px; }
  .uc{ display:flex; gap:12px; align-items:flex-start; font-size:16px; color:var(--body); line-height:1.5; }
  .uc::before{ content:""; width:7px; height:7px; border-radius:50%; background:var(--accent-text); flex:none; margin-top:8px; }
  .uc b{ color:var(--ink); font-weight:590; }

  /* ---------- comparison table ---------- */
  .cmp-wrap{ overflow-x:auto; border:1px solid var(--line); border-radius:16px; box-shadow:var(--shadow-sm); -webkit-overflow-scrolling:touch; }
  table.cmp{ width:100%; border-collapse:collapse; font-size:15px; min-width:680px; }
  table.cmp caption{ text-align:left; color:var(--cap); font-size:13.5px; padding:14px 16px; }
  table.cmp th, table.cmp td{ padding:13px 16px; text-align:left; border-top:1px solid var(--line); vertical-align:top; }
  table.cmp thead th{ color:var(--ink); font-weight:620; font-size:13.5px; background:var(--band); }
  table.cmp thead th.me{ color:var(--accent-text); }
  table.cmp tbody th{ font-weight:500; color:var(--body); }
  table.cmp td.me{ color:var(--ink); font-weight:590; background:color-mix(in srgb,var(--accent) 5%,transparent); }
  table.cmp td{ color:var(--body); }
  .cmp-note{ margin-top:20px; font-size:16.5px; color:var(--body); max-width:72ch; }

  /* ---------- specs (at a glance) ---------- */
  .specs-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(330px,1fr)); gap:0 48px; max-width:860px; }
  .spec{ display:flex; gap:16px; padding:14px 0; border-top:1px solid var(--line); font-size:15.5px; }
  .spec dt{ color:var(--cap); flex:0 0 120px; }
  .spec dd{ color:var(--ink); font-weight:500; }
  .spec dd a{ color:var(--accent-text); }

  /* ---------- footer ---------- */
  footer{ border-top:1px solid var(--line); padding:40px 0; margin-top:20px; }
  .foot{ display:flex; flex-wrap:wrap; gap:18px 26px; align-items:center; }
  .foot .brand{ font-size:15px; }
  .foot-links{ display:flex; flex-wrap:wrap; gap:18px; margin-left:auto; }
  .foot-links a{ color:var(--body); font-size:14.5px; }
  .foot-note{ width:100%; color:var(--cap); font-size:13px; margin-top:6px; }

  /* ---------- reveal ---------- */
  .js .reveal{ opacity:0; transform:translateY(16px); transition:opacity .38s cubic-bezier(0.22,1,0.36,1), transform .38s cubic-bezier(0.22,1,0.36,1); }
  .reveal.in{ opacity:1; transform:none; }
  @media (prefers-reduced-motion:reduce){
    .js .reveal{ opacity:1; transform:none; transition:none; }
    .hero-device .device-iphone{ animation:none; }
    .demo .chip{ opacity:1; transform:none; }
  }

  /* ---------- responsive ---------- */
  @media (max-width:860px){
    body{ font-size:17px; }
    .nav-links{ display:none; }
    .hero{ padding:40px 0 24px; }
    .hero-grid{ grid-template-columns:1fr; gap:30px; }
    .hero-device{ order:-1; }
    .hero-device .device-iphone{ transform:none; animation:none; width:min(240px,64vw); }
    .frow{ grid-template-columns:1fr; gap:26px; padding:34px 0; }
    .frow.flip .fr-text{ order:0; }
    .steps{ grid-template-columns:1fr; gap:20px; }
    .showcase{ grid-template-columns:1fr; gap:30px; }
    .price-grid{ grid-template-columns:1fr; }
    .uc-grid{ grid-template-columns:1fr; }
    .sec{ padding:56px 0; }
  }

  /* ---------- language switcher ---------- */
  .langsel{ position:relative; }
  .langsel > summary{ list-style:none; cursor:pointer; display:flex; align-items:center; gap:6px; font-size:14px; font-weight:590; color:var(--body); padding:8px 11px; border-radius:10px; border:1px solid var(--line-strong); transition:border-color .12s ease, color .12s ease; }
  .langsel > summary::-webkit-details-marker{ display:none; }
  .langsel > summary::marker{ content:""; }
  .langsel > summary svg{ width:15px; height:15px; }
  .langsel > summary:hover{ color:var(--ink); border-color:var(--accent); }
  .langsel[open] > summary{ color:var(--accent-text); border-color:var(--accent); }
  .langmenu{ position:absolute; right:0; top:calc(100% + 8px); background:var(--card-solid); border:1px solid var(--line); border-radius:13px; box-shadow:var(--shadow-lg); padding:6px; min-width:180px; z-index:60; display:flex; flex-direction:column; }
  .langmenu a{ padding:9px 12px; border-radius:8px; font-size:14.5px; color:var(--body); text-decoration:none; }
  .langmenu a:hover{ background:var(--band); color:var(--ink); text-decoration:none; }
  .langmenu a.on{ color:var(--accent-text); font-weight:590; }