:root {
    color-scheme:light;
    --bg:#f8f9fb; --paper:#fff; --subtle:#f1f4f8; --line:#e1e6ed;
    --ink:#182231; --body:#39485b; --muted:#637286;
    --blue:#2857d7; --blue-hover:#214bc0; --blue-soft:#eaf0ff;
    --green:#287650; --header:rgba(248,249,251,.94);
    --shadow:0 20px 60px rgba(28,45,76,.09),0 2px 10px rgba(28,45,76,.04);
    --glow:rgba(72,111,213,.10);
    --window-bar:rgba(246,249,253,.92); --window-edge:rgba(93,116,151,.23);
    --window-glint:rgba(255,255,255,.9);
    --window-shadow:0 24px 60px rgba(29,50,86,.12),0 3px 12px rgba(29,50,86,.06);
  }
  @media (prefers-color-scheme:dark) {
    :root:not([data-theme="light"]) {
      color-scheme:dark;
      --bg:#171c24; --paper:#202732; --subtle:#1b222c; --line:#354151;
      --ink:#f2f5f9; --body:#c7d0dc; --muted:#a7b4c4;
      --blue:#7e9dff; --blue-hover:#9ab2ff; --blue-soft:#293959;
      --green:#8bd5a7; --header:rgba(23,28,36,.94);
      --shadow:0 20px 60px rgba(0,0,0,.25),0 2px 10px rgba(0,0,0,.12);
      --glow:rgba(93,126,220,.14);
      --window-bar:rgba(40,49,63,.95); --window-edge:rgba(154,177,213,.22);
      --window-glint:rgba(255,255,255,.08);
      --window-shadow:0 24px 60px rgba(0,0,0,.35),0 3px 12px rgba(0,0,0,.2);
    }
  }
  :root[data-theme="dark"] {
    color-scheme:dark;
    --bg:#171c24; --paper:#202732; --subtle:#1b222c; --line:#354151;
    --ink:#f2f5f9; --body:#c7d0dc; --muted:#a7b4c4;
    --blue:#7e9dff; --blue-hover:#9ab2ff; --blue-soft:#293959;
    --green:#8bd5a7; --header:rgba(23,28,36,.94);
    --shadow:0 20px 60px rgba(0,0,0,.25),0 2px 10px rgba(0,0,0,.12);
    --glow:rgba(93,126,220,.14);
    --window-bar:rgba(40,49,63,.95); --window-edge:rgba(154,177,213,.22);
    --window-glint:rgba(255,255,255,.08);
    --window-shadow:0 24px 60px rgba(0,0,0,.35),0 3px 12px rgba(0,0,0,.2);
  }
  * {box-sizing:border-box}
  html {scroll-behavior:smooth;scroll-padding-top:88px;-webkit-text-size-adjust:100%}
  body {margin:0;background:var(--bg);color:var(--body);font:16px/1.6 "Segoe UI Variable Text","Segoe UI",system-ui,-apple-system,Arial,sans-serif}
  button,a { -webkit-tap-highlight-color:transparent }
  a {color:var(--blue);text-underline-offset:3px}
  a:hover {text-decoration-thickness:2px}
  :focus-visible {outline:3px solid var(--blue);outline-offset:3px}
  h1,h2,h3,p {margin:0}
  h1,h2,h3 {color:var(--ink);line-height:1.14;letter-spacing:-.035em}
  h1 {font-size:clamp(2.5rem,5.3vw,4.35rem);font-weight:720;max-width:13ch}
  h2 {font-size:clamp(1.9rem,3.5vw,3rem);font-weight:700;max-width:18ch}
  h3 {font-size:1.16rem;font-weight:680;letter-spacing:-.02em}
  strong {color:var(--ink)}
  code {font: .9em Consolas,"Cascadia Mono",monospace;background:var(--subtle);padding:.1em .3em;border-radius:4px}
  .wrap {width:min(100% - 48px,1120px);margin-inline:auto}
  .skip {position:absolute;left:16px;top:-80px;z-index:50;background:var(--paper);padding:10px 16px}
  .skip:focus {top:12px}
  .eyebrow {color:var(--blue);font-size:.75rem;font-weight:750;letter-spacing:.13em;text-transform:uppercase}
  .intro {max-width:62ch;margin-top:18px;font-size:1.08rem;color:var(--body)}
  .small {font-size:.86rem;color:var(--muted)}
  .button {display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:11px 19px;border:1px solid transparent;border-radius:9px;font:inherit;font-size:.94rem;font-weight:700;text-decoration:none;cursor:pointer;transition:background .22s,border-color .22s,box-shadow .22s,transform .22s}
  .button:hover {text-decoration:none;transform:translateY(-2px)}
  .button:active {transform:translateY(0)}
  .button-primary {background:#2857d7;color:#fff;box-shadow:0 4px 10px rgba(40,87,215,.15)}
  .button-primary:hover {background:#214bc0;color:#fff;box-shadow:0 8px 18px rgba(40,87,215,.22)}
  .button-outline {background:var(--paper);border-color:var(--line);color:var(--ink)}
  .button-outline:hover {border-color:var(--muted);color:var(--ink)}
  .button-small {min-height:38px;padding:7px 14px;font-size:.85rem}
  header {position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line);background:var(--header);backdrop-filter:blur(14px);transition:box-shadow .25s}
  header.scrolled {box-shadow:0 7px 24px rgba(21,35,64,.09)}
  .bar {display:flex;align-items:center;gap:24px;min-height:68px}
  .brand {display:inline-flex;align-items:center;gap:10px;flex:none;color:var(--ink);text-decoration:none;font-weight:750;letter-spacing:-.025em}
  .brand img {display:block;width:29px;height:29px}
  .brand small {margin-left:2px;color:var(--muted);font-size:.72rem;font-weight:600;letter-spacing:0}
  nav {display:flex;align-items:center;gap:27px;margin-left:auto}
  nav a {position:relative;color:var(--body);font-size:.88rem;font-weight:600;text-decoration:none}
  nav a:hover {color:var(--blue)}
  nav a::after {content:"";position:absolute;right:0;bottom:-8px;left:0;height:2px;background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .24s ease}
  nav a:hover::after,nav a:focus-visible::after {transform:scaleX(1)}
  .bar-actions {display:flex;align-items:center;gap:10px}
  .lang-switch {display:inline-flex;align-items:center;gap:2px;padding:3px;border:1px solid var(--line);border-radius:8px;background:var(--paper);font-size:.73rem;font-weight:750;letter-spacing:.03em}
  .lang-switch a,.lang-switch span {display:block;min-width:28px;padding:4px 5px;border-radius:5px;text-align:center;text-decoration:none}
  .lang-switch a {color:var(--muted)}
  .lang-switch a:hover {color:var(--blue);background:var(--subtle)}
  .lang-switch span {color:var(--ink);background:var(--subtle)}
  .theme-button {display:inline-grid;place-items:center;flex:none;width:38px;height:38px;padding:0;border:1px solid var(--line);border-radius:9px;background:var(--paper);color:var(--body);cursor:pointer;transition:color .22s,background .22s,border-color .22s,transform .22s}
  .theme-button:hover {color:var(--blue);background:var(--subtle);border-color:var(--blue);transform:translateY(-1px)}
  .theme-button svg {width:19px;height:19px}
  .theme-button .icon-sun,.theme-button[data-mode="dark"] .icon-moon {display:none}
  .theme-button[data-mode="dark"] .icon-sun {display:block}
  .hero {padding:88px 0 74px}
  .hero-copy {display:grid;grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);gap:72px;align-items:end}
  .hero h1 {margin-top:17px}
  .hero-side {padding-bottom:4px}
  .hero-side p {font-size:1.13rem;line-height:1.65}
  .hero-actions {display:flex;flex-wrap:wrap;gap:11px;margin-top:29px}
  .hero-meta {margin-top:18px;color:var(--muted);font-size:.83rem}
  .product-shot {position:relative;isolation:isolate;margin:65px 0 0;background:var(--paper);border:1px solid var(--window-edge);border-radius:18px;box-shadow:var(--window-shadow),inset 0 1px var(--window-glint);transition:box-shadow .35s}
  .product-shot::before {content:"";position:absolute;z-index:-1;inset:-42px -8% 12%;background:radial-gradient(ellipse at center,var(--glow),transparent 68%);pointer-events:none}
  .shot-top {position:relative;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;min-height:48px;padding:8px 15px;border-bottom:1px solid var(--window-edge);border-radius:17px 17px 0 0;background:linear-gradient(180deg,var(--window-glint),transparent 80%),var(--window-bar);backdrop-filter:blur(18px);color:var(--muted);font-size:.76rem;overflow:hidden}
  .shot-top::after {content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(105deg,transparent 32%,rgba(255,255,255,.25) 50%,transparent 68%);transform:translateX(-125%)}
  .shot-dots {display:flex;gap:7px;align-items:center}
  .shot-dots i {display:block;width:10px;height:10px;border-radius:50%;box-shadow:inset 0 0 0 1px rgba(0,0,0,.12),0 1px 1px rgba(255,255,255,.45)}
  .shot-dots i:nth-child(1) {background:#ff6159}
  .shot-dots i:nth-child(2) {background:#ffbd2f}
  .shot-dots i:nth-child(3) {background:#29c941}
  .shot-title {position:relative;z-index:1;padding:4px 13px;border:1px solid var(--window-edge);border-radius:99px;background:var(--paper);box-shadow:0 1px 5px rgba(26,42,70,.06);color:var(--ink);font-weight:650;letter-spacing:-.01em}
  .shot-context {justify-self:end}
  .product-shot img {display:block;width:100%;height:auto;border-radius:0}
  .product-shot figcaption {padding:12px 16px 13px;border-top:1px solid var(--window-edge);border-radius:0 0 17px 17px;color:var(--muted);font-size:.83rem}
  section {padding:93px 0;border-top:1px solid var(--line)}
  .section-head {display:flex;justify-content:space-between;gap:40px;align-items:end;margin-bottom:38px}
  .section-head h2 {margin-top:13px}
  .section-head .intro {max-width:42ch;margin:0}
  .benefits {display:grid;grid-template-columns:repeat(3,1fr);gap:0}
  .benefit {padding:8px 28px 4px;border-left:1px solid var(--line)}
  .benefit:first-child {border-left:0;padding-left:0}
  .benefit .num {display:block;margin-bottom:18px;color:var(--blue);font-size:.78rem;font-weight:750;letter-spacing:.12em}
  .benefit p {margin-top:9px;font-size:.94rem;max-width:31ch}
  .feature {display:grid;grid-template-columns:minmax(0,1.08fr) minmax(270px,.92fr);gap:68px;align-items:center;padding:50px 0;border-top:1px solid var(--line)}
  .feature:first-child {padding-top:0;border-top:0}
  .feature:last-child {padding-bottom:0}
  .feature.reverse .feature-image {order:2}
  .feature-image {position:relative;margin:0;padding:35px 0 0;overflow:hidden;background:var(--paper);border:1px solid var(--window-edge);border-radius:15px;box-shadow:var(--window-shadow),inset 0 1px var(--window-glint);transition:box-shadow .35s,border-color .35s}
  .feature-image img {display:block;width:100%;height:auto}
  .feature-copy h3 {font-size:clamp(1.55rem,2.5vw,2.15rem);margin:13px 0 17px}
  .feature-copy p {max-width:46ch}
  .feature-copy ul {list-style:none;padding:0;margin:22px 0 0}
  .feature-copy li {position:relative;padding:8px 0 8px 20px;border-top:1px solid var(--line);font-size:.92rem}
  .feature-copy li::before {content:"";position:absolute;top:19px;left:0;width:6px;height:6px;border-radius:50%;background:var(--blue)}
  .more-grid {display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:54px}
  .more-item {padding:24px 0;border-top:2px solid var(--ink)}
  .more-item h3 {margin-bottom:9px}
  .more-item p {font-size:.93rem}
  .measure-grid {display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:34px}
  .measure {padding:27px;background:var(--paper);border:1px solid var(--line);border-radius:10px;transition:border-color .25s,box-shadow .25s}
  .measure strong {display:block;font-size:2.18rem;line-height:1.05;letter-spacing:-.05em}
  .measure span {display:block;margin-top:12px;color:var(--body);font-size:.89rem}
  .measure-note {max-width:78ch;margin-top:22px;color:var(--muted);font-size:.82rem}
  .measure-note a {font-weight:600}
  .gallery {display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .gallery figure {position:relative;margin:0;padding:35px 0 0;overflow:hidden;background:var(--paper);border:1px solid var(--window-edge);border-radius:15px;box-shadow:var(--window-shadow),inset 0 1px var(--window-glint);transition:box-shadow .35s,border-color .35s}
  .gallery img {display:block;width:100%;height:auto;background:var(--paper)}
  .gallery figcaption {padding:11px 15px 12px;border-top:1px solid var(--window-edge);color:var(--muted);font-size:.86rem}
  .feature-image::before,.gallery figure::before {content:"";position:absolute;top:0;right:0;left:0;height:35px;border-bottom:1px solid var(--window-edge);background:linear-gradient(180deg,var(--window-glint),transparent 85%),var(--window-bar);backdrop-filter:blur(18px)}
  .feature-image::after,.gallery figure::after {content:"";position:absolute;top:13px;left:15px;width:9px;height:9px;border-radius:50%;background:#ff6159;box-shadow:16px 0 #ffbd2f,32px 0 #29c941,0 0 0 1px rgba(0,0,0,.08)}
  .gallery .wide {grid-column:1/-1}
  .gallery .wide img {max-width:696px}
  .buy {display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;padding:43px;background:var(--paper);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
  .buy h2 {margin:12px 0 15px}
  .buy p {max-width:47ch}
  .buy-panel {padding:28px;background:var(--subtle);border-radius:11px}
  .price {display:flex;align-items:baseline;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line)}
  .price strong {font-size:2.8rem;line-height:1;letter-spacing:-.055em}
  .price span {color:var(--muted);font-size:.88rem}
  .included {list-style:none;padding:0;margin:18px 0 23px}
  .included li {display:flex;gap:11px;margin:12px 0;font-size:.91rem}
  .included li::before {content:"✓";color:var(--green);font-weight:800}
  .buy-panel .button {width:100%}
  .buy-panel .small {margin-top:13px;text-align:center}
  .faq {max-width:850px}
  .faq h2 {margin:12px 0 30px}
  details {border-top:1px solid var(--line)}
  details:last-child {border-bottom:1px solid var(--line)}
  summary {position:relative;list-style:none;padding:19px 35px 19px 0;color:var(--ink);font-weight:670;cursor:pointer}
  summary::-webkit-details-marker {display:none}
  summary::after {content:"+";position:absolute;right:5px;top:14px;color:var(--muted);font-size:1.5rem;font-weight:400}
  details[open] summary::after {content:"−"}
  details p {max-width:75ch;padding:0 34px 20px 0;font-size:.93rem}
  @media (hover:hover) {
    .product-shot:hover {box-shadow:0 30px 75px rgba(29,50,86,.17),0 5px 16px rgba(29,50,86,.07)}
    .feature-image:hover,.gallery figure:hover {border-color:var(--blue);box-shadow:0 24px 55px rgba(29,50,86,.15),0 4px 12px rgba(29,50,86,.06)}
    .measure:hover {border-color:var(--blue);box-shadow:0 10px 25px rgba(28,45,76,.07)}
    .product-shot:hover .shot-top::after {animation:window-glint 1.2s ease-out}
  }
  @media (prefers-reduced-motion:no-preference) {
    .motion-ready .hero .eyebrow {animation:hero-enter .55s cubic-bezier(.22,1,.36,1) backwards}
    .motion-ready .hero h1 {animation:hero-enter .7s .08s cubic-bezier(.22,1,.36,1) backwards}
    .motion-ready .hero-side {animation:hero-enter .7s .18s cubic-bezier(.22,1,.36,1) backwards}
    .motion-ready .product-shot {animation:hero-enter .8s .3s cubic-bezier(.22,1,.36,1) backwards}
    .motion-ready .reveal {opacity:0;transform:translateY(22px);transition:opacity .65s cubic-bezier(.22,1,.36,1),transform .65s cubic-bezier(.22,1,.36,1);transition-delay:var(--reveal-delay,0ms)}
    .motion-ready .reveal.is-visible {opacity:1;transform:translateY(0)}
    .benefit:nth-child(2),.measure:nth-child(2),.gallery figure:nth-child(2),.more-item:nth-child(2) {--reveal-delay:70ms}
    .benefit:nth-child(3),.measure:nth-child(3),.gallery figure:nth-child(3),.more-item:nth-child(3) {--reveal-delay:140ms}
    details[open] p {animation:answer-enter .25s ease-out both}
    @keyframes hero-enter {from {opacity:0;transform:translateY(20px)}to {opacity:1;transform:translateY(0)}}
    @keyframes answer-enter {from {opacity:0;transform:translateY(-5px)}to {opacity:1;transform:translateY(0)}}
    @keyframes window-glint {from {transform:translateX(-125%)}to {transform:translateX(125%)}}
  }
  footer {padding:45px 0 56px;border-top:1px solid var(--line);font-size:.83rem;color:var(--muted)}
  .footer-main {display:flex;flex-wrap:wrap;align-items:center;gap:14px 28px}
  .footer-main span {margin-right:auto}
  .footer-main a {color:var(--body)}
  .footer-note {max-width:70ch;margin-top:20px}
  @media (max-width:900px) {
    nav {display:none}
    .bar-actions {margin-left:auto}
    .hero-copy,.feature,.buy {grid-template-columns:1fr;gap:30px}
    .hero h1 {max-width:17ch}
    .feature.reverse .feature-image {order:0}
    .section-head {display:block}
    .section-head .intro {margin-top:17px}
  }
  @media (max-width:680px) {
    .wrap {width:min(100% - 34px,1120px)}
    .bar {min-height:62px;gap:10px}
    .brand small {display:none}
    .hero {padding:59px 0 55px}
    .hero-copy,.feature,.buy {grid-template-columns:1fr}
    .hero-copy {gap:20px}
    .hero h1 {max-width:14ch}
    .hero-side p {font-size:1rem}
    .product-shot {margin-top:38px;border-radius:13px}
    .shot-top {min-height:39px;padding:6px 11px;border-radius:12px 12px 0 0;font-size:.68rem}
    .shot-title {padding:3px 9px}
    .shot-context {display:none}
    section {padding:69px 0}
    .benefits,.measure-grid,.more-grid,.gallery {grid-template-columns:1fr}
    .benefit {padding:20px 0;border-left:0;border-top:1px solid var(--line)}
    .benefit:first-child {border-top:0;padding-top:0}
    .benefit .num {margin-bottom:8px}
    .feature {padding:40px 0}
    .feature.reverse .feature-image {order:0}
    .feature-copy h3 {margin:9px 0 12px}
    .more-grid {gap:4px;margin-top:36px}
    .measure-grid {gap:10px}
    .gallery .wide {grid-column:auto}
    .buy {gap:27px;padding:23px}
    .buy-panel {padding:21px}
  }
  @media (max-width:480px) {.bar-actions .button {display:none}.bar-actions {gap:5px}}
  @media (prefers-reduced-motion:reduce) {html {scroll-behavior:auto}.button,.theme-button,.product-shot,.feature-image,.gallery figure,.measure,nav a::after,header {transition:none}.button:hover,.theme-button:hover {transform:none}.shot-top::after {animation:none!important}}