@font-face {
      font-family: "IBM Plex Sans";
      font-style: normal;
      font-weight: 100 700;
      font-display: swap;
      src: url(fonts/ibm-plex-sans-latin.woff2) format("woff2");
      unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
    }

    @font-face {
      font-family: "IBM Plex Sans";
      font-style: normal;
      font-weight: 100 700;
      font-display: swap;
      src: url(fonts/ibm-plex-sans-latin-ext.woff2) format("woff2");
      unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
    }

    @font-face {
      font-family: "Archivo";
      font-style: normal;
      font-weight: 100 900;
      font-stretch: 62% 125%;
      font-display: swap;
      src: url(fonts/archivo-latin.woff2) format("woff2");
      unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
    }

    @font-face {
      font-family: "Archivo";
      font-style: normal;
      font-weight: 100 900;
      font-stretch: 62% 125%;
      font-display: swap;
      src: url(fonts/archivo-latin-ext.woff2) format("woff2");
      unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
    }

    @font-face {
      font-family: "Display fallback";
      src: local("Arial Black"), local("Helvetica Neue"), local("Arial");
      size-adjust: 104%;
    }

    :root {
      color-scheme: dark;
      /* eSave brand (esaveag.com + logo): black hero, #0a0a0a page, deep petrol surfaces, lime accent. */
      --black: #000000;
      --bg: #0a0a0a;
      --surface: #071b1a;
      --surface-light: #081515;
      --olive: #243b1b;
      --lime: #96bf0d;
      --lime-rgb: 150, 191, 13;
      --lime-light: #b6d943;
      --lime-deep: #6f8f09;
      --white: #ffffff;
      --grey: #a3a3a3;
      --glow: 0 0 16px rgba(var(--lime-rgb), .45);
      /* Component names used across the stylesheet, mapped onto the brand palette. */
      --night: var(--bg);
      --night-deep: var(--black);
      --asphalt: var(--surface);
      --asphalt-light: var(--surface-light);
      --paper: var(--white);
      --muted: var(--grey);
      --accent: var(--lime);
      --accent-rgb: var(--lime-rgb);
      --accent-deep: var(--lime-deep);
      --accent-light: var(--lime-light);
      --green: var(--lime);
      --line: rgba(255, 255, 255, .12);
      --line-strong: rgba(255, 255, 255, .24);
      --header-h: 74px;
      --page-pad: clamp(20px, 4vw, 72px);
      --content: 1240px;
      --display: "Archivo", "Display fallback", sans-serif;
      --body: "IBM Plex Sans", system-ui, sans-serif;
      --ease: cubic-bezier(.2, .75, .25, 1);
    }

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

    html {
      scroll-behavior: smooth;
      scroll-padding-top: calc(var(--header-h) + 18px);
      background: var(--night-deep);
      color-scheme: dark;
    }

    body {
      margin: 0;
      min-width: 320px;
      overflow-x: hidden;
      color: var(--paper);
      background: var(--night);
      font-family: var(--body);
      font-size: 16px;
      line-height: 1.55;
      font-synthesis: none;
      -webkit-font-smoothing: antialiased;
    }

    body.menu-open { overflow: hidden; }

    img, video { display: block; max-width: 100%; }
    figure { margin: 0; }
    a { color: inherit; text-decoration: none; }
    button, input, textarea, select { font: inherit; }
    a, button { touch-action: manipulation; -webkit-tap-highlight-color: rgba(var(--accent-rgb), .22); }
    h1, h2, h3 { text-wrap: balance; }

    ::selection { color: #000; background: var(--accent); }

    :focus-visible {
      outline: 2px solid var(--accent-light);
      outline-offset: 5px;
    }

    


    
    .main-nav.is-open :focus-visible { outline-color: var(--accent-light); }

    .skip-link {
      position: fixed;
      z-index: 2000;
      top: 10px;
      left: 10px;
      padding: 10px 14px;
      color: #000;
      background: var(--accent);
      font-weight: 600;
      transform: translateY(-160%);
      transition: transform .2s ease;
    }

    .skip-link:focus { transform: translateY(0); }

    .container {
      width: min(calc(100% - (2 * var(--page-pad))), var(--content));
      margin-inline: auto;
    }

    .utility {
      margin: 0;
      color: var(--accent-light);
      font-size: .72rem;
      font-weight: 600;
      letter-spacing: .17em;
      line-height: 1.35;
      text-transform: uppercase;
    }

    .utility.light { color: var(--paper); }

    .visually-hidden {
      position: absolute !important;
      width: 1px !important;
      height: 1px !important;
      padding: 0 !important;
      margin: -1px !important;
      overflow: hidden !important;
      clip: rect(0, 0, 0, 0) !important;
      white-space: nowrap !important;
      border: 0 !important;
    }

    .site-header {
      position: fixed;
      z-index: 900;
      top: 0;
      right: 0;
      left: 0;
      height: var(--header-h);
      border-bottom: 1px solid var(--line);
      color: var(--paper);
      background: rgba(0, 0, 0, .72);
      transition: background-color .3s ease, border-color .3s ease;
    }



    .site-header.is-scrolled,
    .site-header.menu-visible {
      border-color: var(--line-strong);
      background: rgba(0, 0, 0, .9);
    }

    .header-inner {
      display: grid;
      grid-template-columns: auto 1fr auto;
      align-items: center;
      height: 100%;
      gap: 28px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      min-height: 44px;
      line-height: 1;
    }

    .brand-logo-wrap {
      display: flex;
      align-items: center;
      width: 150px;
    }

    .brand-logo {
      width: 100%;
      height: auto;
    }

    .main-nav {
      justify-self: center;
      display: flex;
      align-items: center;
      gap: clamp(18px, 2.2vw, 34px);
    }

    .main-nav a {
      position: relative;
      padding-block: 10px;
      color: rgba(255, 255, 255, .78);
      font-size: .72rem;
      font-weight: 600;
      letter-spacing: .12em;
      text-transform: uppercase;
    }

    .main-nav a::after {
      content: "";
      position: absolute;
      right: 0;
      bottom: 5px;
      left: 0;
      height: 1px;
      background: var(--accent);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform .25s var(--ease);
    }

    .main-nav a:hover::after,
    .main-nav a:focus-visible::after { transform: scaleX(1); }

    .header-cta,
    .button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      border: 2px solid var(--lime);
      border-radius: 999px;
      padding: 12px 22px;
      color: var(--paper);
      background: var(--surface);
      box-shadow: var(--glow);
      font-size: .75rem;
      font-weight: 600;
      letter-spacing: .11em;
      line-height: 1;
      text-transform: uppercase;
      transition: background-color .25s ease, box-shadow .25s ease, transform .25s var(--ease);
    }

    .header-cta:hover,
    .header-cta:focus-visible,
    .button:hover,
    .button:focus-visible {
      color: var(--paper);
      background: rgba(var(--lime-rgb), .2);
      box-shadow: 0 0 28px rgba(var(--lime-rgb), .7);
    }

    .button:hover .arrow,
    .button:focus-visible .arrow,
    .text-link:hover .arrow,
    .text-link:focus-visible .arrow { transform: translateX(4px); }

    .arrow {
      display: inline-block;
      margin-left: 18px;
      transition: transform .25s var(--ease);
    }

    .menu-button {
      display: none;
      width: 46px;
      height: 46px;
      border: 0;
      padding: 12px 8px;
      color: var(--paper);
      background: transparent;
      cursor: pointer;
    }



    
    /* Film scenes sit in the normal page flow, about one screen tall. Each film plays once,
       briefly, when its scene comes into view; the poster underneath covers every state
       without video (no JS, reduced motion, blocked autoplay, failed load). */
    .scrub-scene {
      position: relative;
      background: var(--night-deep);
    }

    .scrub-stage {
      position: relative;
      min-height: 100vh;
      min-height: 100svh;
      overflow: hidden;
      overflow: clip;
      isolation: isolate;
    }

    .scrub-poster,
    .scrub-poster img,
    .scrub-video {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .scrub-poster { z-index: 0; }

    .scrub-video {
      z-index: 1;
      opacity: 0;
      pointer-events: none;
      transition: opacity .4s ease;
    }

    .scrub-scene.is-video-ready .scrub-video { opacity: 1; }
    .scrub-scene[data-mode="static"] .scrub-video { display: none; }

    .hero-stage::after {
      content: "";
      position: absolute;
      z-index: 2;
      inset: 0;
      pointer-events: none;
      background:
        linear-gradient(90deg, rgba(0, 0, 0, .9) 0%, rgba(0, 0, 0, .65) 30%, rgba(0, 0, 0, .08) 67%, rgba(0, 0, 0, .25) 100%),
        linear-gradient(0deg, rgba(0, 0, 0, .9) 0%, transparent 42%, rgba(0, 0, 0, .22) 100%);
    }

        .hero-poster img { object-position: 70% center; }

    .hero-content {
      position: relative;
      z-index: 5;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 40px;
      min-height: inherit;
      padding-block: calc(var(--header-h) + clamp(32px, 6vh, 64px)) clamp(72px, 12vh, 130px);
    }

    .hero-intro { width: min(670px, 58vw); }

    .hero-title {
      max-width: 720px;
      margin: 20px 0 22px;
      
      padding-top: .11em;
      color: var(--paper);
      font-family: var(--display);
      font-size: clamp(5.2rem, 9.6vw, 10.4rem);
      font-weight: 800;
      letter-spacing: -.045em;
      
      line-height: .92;
      text-transform: uppercase;
    }

    .hero-title span { display: block; }
    .hero-title .indent { margin-left: .28em; }

    .hero-lead {
      width: min(460px, 92%);
      margin: 0 0 30px;
      color: rgba(255, 255, 255, .82);
      font-size: clamp(1rem, 1.3vw, 1.2rem);
      line-height: 1.55;
    }

    .hero-text-link {
      display: inline-flex;
      align-items: center;
      min-height: 44px;
      border-bottom: 1px solid var(--accent);
      padding-block: 8px;
      color: var(--paper);
      font-size: .76rem;
      font-weight: 600;
      letter-spacing: .13em;
      text-transform: uppercase;
    }

    .hero-stat {
      align-self: flex-end;
      width: min(340px, 32vw);
      border-top: 1px solid var(--accent);
      padding-top: 16px;
      text-align: right;
    }

    .hero-stat .small {
      display: block;
      color: var(--paper);
      font-size: .72rem;
      font-weight: 600;
      letter-spacing: .15em;
      text-transform: uppercase;
    }

    .hero-stat strong {
      display: block;
      margin-block: 2px 4px;
      color: var(--accent-light);
      font-family: var(--display);
      font-size: clamp(5rem, 10vw, 9rem);
      font-weight: 700;
      letter-spacing: -.04em;
      line-height: .85;
    }

    .hero-stat p {
      margin: 0;
      color: var(--muted);
      font-size: .85rem;
    }

    .detection-ring {
      position: absolute;
      z-index: 4;
      top: 59%;
      left: 66%;
      width: 190px;
      aspect-ratio: 1;
      border: 1px solid rgba(var(--accent-rgb), .78);
      border-radius: 50%;
      opacity: 0;
      transform: translate(-50%, -50%) scale(.15);
      pointer-events: none;
    }

    /* One short pulse on arrival: the ring opens out from the sensor and fades. */
    .js .hero-scene .detection-ring { animation: detection-pulse 2.6s var(--ease) .6s both; }

    @keyframes detection-pulse {
      35% { opacity: 1; }
      100% { opacity: 0; transform: translate(-50%, -50%) scale(2.4); }
    }

    .detection-ring::before,
    .detection-ring::after {
      content: "";
      position: absolute;
      border: 1px solid rgba(var(--accent-rgb), .42);
      border-radius: inherit;
      inset: 17%;
    }

    .detection-ring::after { inset: 34%; }

    .scroll-cue {
      position: absolute;
      z-index: 6;
      bottom: 25px;
      left: var(--page-pad);
      display: flex;
      align-items: center;
      gap: 12px;
      color: rgba(255, 255, 255, .62);
      font-size: .66rem;
      font-weight: 600;
      letter-spacing: .15em;
      text-transform: uppercase;
    }

    .scroll-cue::before {
      content: "";
      width: 42px;
      height: 1px;
      background: var(--accent);
    }

    

    .no-js .scrub-video,
    .no-js .detection-ring { display: none; }

    
    .section {
      position: relative;
      padding-block: clamp(92px, 12vw, 180px);
    }

    .section-rule {
      border-top: 1px solid var(--line);
    }

    .chapter-heading {
      display: grid;
      grid-template-columns: 2fr 7fr 3fr;
      gap: 24px;
      align-items: start;
      margin-bottom: clamp(58px, 8vw, 108px);
    }

    .chapter-heading h2,
    .compat-copy h2,
    .final-cta h2 {
      margin: 0;
      color: var(--paper);
      font-family: var(--display);
      font-size: clamp(3.8rem, 7.2vw, 7.4rem);
      font-weight: 700;
      letter-spacing: -.035em;
      line-height: .92;
      text-transform: uppercase;
    }

    .chapter-heading > p:last-child {
      margin: 6px 0 0;
      color: var(--muted);
      font-size: .98rem;
      line-height: 1.6;
    }

    .system-section {
      background:
        linear-gradient(135deg, rgba(20, 44, 44, .45), transparent 42%),
        var(--night);
    }

    .system-grid {
      display: grid;
      grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
      gap: clamp(42px, 8vw, 120px);
      align-items: start;
    }

    .system-visual {
      position: sticky;
      top: calc(var(--header-h) + 6vh);
      display: grid;
      place-items: center;
      min-height: calc(88vh - var(--header-h));
      overflow: hidden;
    }

    .system-visual::before {
      content: "";
      position: absolute;
      width: min(34vw, 450px);
      aspect-ratio: 1;
      border: 1px solid var(--line);
      border-radius: 50%;
    }

    .system-visual::after {
      content: "";
      position: absolute;
      top: 12%;
      bottom: 12%;
      left: 50%;
      width: 1px;
      background: linear-gradient(var(--accent), rgba(var(--accent-rgb), .05));
      transform: scaleY(var(--step-progress, .25));
      transform-origin: top;
      transition: transform .6s var(--ease);
    }

    .system-visual img {
      position: relative;
      z-index: 2;
      width: min(92%, 520px);
      height: auto;
      filter: drop-shadow(0 38px 42px rgba(0, 0, 0, .4));
      transform: rotate(calc((var(--active-step, 1) - 2.5) * 2deg)) scale(calc(.94 + var(--active-step, 1) * .012));
      transition: transform .7s var(--ease);
    }

    .steps { border-top: 1px solid var(--line); }

    .step {
      display: grid;
      grid-template-columns: 92px 1fr;
      align-content: center;
      min-height: 58vh;
      border-bottom: 1px solid var(--line);
      color: var(--muted);
      transition: color .4s ease;
    }

    .step.is-active { color: var(--paper); }

    .step h3 {
      margin: 0 0 14px;
      font-family: var(--display);
      font-size: clamp(2.8rem, 5.4vw, 5.8rem);
      font-weight: 700;
      letter-spacing: -.03em;
      line-height: .92;
      text-transform: uppercase;
    }

    .step p {
      width: min(540px, 100%);
      margin: 0;
      color: currentColor;
      font-size: 1rem;
      line-height: 1.65;
    }

    
    .products-section { background: var(--bg); }

    .product-layout {
      display: grid;
      grid-template-columns: minmax(0, 7fr) minmax(340px, 5fr);
      gap: clamp(44px, 6vw, 84px);
      align-items: start;
    }

    .product-list { border-top: 1px solid var(--line-strong); }

    .product-row {
      position: relative;
      display: grid;
      grid-template-columns: 72px minmax(0, 1fr) auto;
      gap: 20px;
      border-bottom: 1px solid var(--line);
      padding-block: 28px;
      transition: padding .35s var(--ease), border-color .35s ease;
    }

    .product-row::before {
      content: "";
      position: absolute;
      top: -1px;
      bottom: -1px;
      left: 0;
      width: 2px;
      background: var(--accent);
      transform: scaleY(0);
      transform-origin: top;
      transition: transform .35s var(--ease);
    }

    .product-row.is-active {
      border-color: rgba(var(--accent-rgb), .48);
      padding-left: 18px;
    }

    .product-row.is-active::before { transform: scaleY(1); }

    .product-code {
      color: var(--accent);
      font-family: var(--display);
      font-size: 1.05rem;
      font-weight: 600;
      letter-spacing: .08em;
    }

    .product-main h3 {
      margin: 0;
      font-family: var(--display);
      font-size: clamp(1.9rem, 3.1vw, 3rem);
      font-weight: 700;
      letter-spacing: -.02em;
      line-height: .95;
      text-transform: uppercase;
    }

    .product-main p {
      max-width: 570px;
      margin: 12px 0 0;
      color: var(--muted);
      font-size: .92rem;
    }

    .product-side {
      min-width: 138px;
      text-align: right;
    }

    .product-price {
      display: block;
      color: var(--paper);
      font-family: var(--display);
      font-size: 1.65rem;
      font-weight: 600;
      line-height: 1;
    }

    .stock {
      display: block;
      margin-block: 9px 12px;
      color: var(--green);
      font-size: .75rem;
      font-weight: 600;
      letter-spacing: .06em;
      text-transform: uppercase;
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      border-bottom: 1px solid var(--line-strong);
      padding-block: 5px;
      color: var(--paper);
      font-size: .7rem;
      font-weight: 600;
      letter-spacing: .1em;
      text-transform: uppercase;
    }

    .product-stage {
      position: sticky;
      top: calc(var(--header-h) + 8vh);
      display: grid;
      place-items: center;
      min-height: min(70vh, 700px);
      border-left: 1px solid var(--line);
      overflow: hidden;
    }

    .product-stage::before {
      content: attr(data-model);
      position: absolute;
      top: 18px;
      right: 18px;
      color: rgba(255, 255, 255, .18);
      font-family: var(--display);
      font-size: clamp(3rem, 5vw, 5.5rem);
      font-weight: 700;
      letter-spacing: -.02em;
      line-height: .8;
      text-align: right;
      white-space: pre;
    }

    .product-stage img {
      position: absolute;
      width: min(88%, 520px);
      height: auto;
      opacity: 1;
      filter: drop-shadow(0 34px 44px rgba(0, 0, 0, .45));
      transform: translateY(0) rotate(-2deg) scale(1);
    }

    .product-stage-label {
      position: absolute;
      right: 18px;
      bottom: 18px;
      left: 18px;
      display: flex;
      justify-content: space-between;
      border-top: 1px solid var(--accent);
      padding-top: 10px;
      color: var(--muted);
      font-size: .68rem;
      font-weight: 600;
      letter-spacing: .12em;
      text-transform: uppercase;
    }

    .price-note {
      margin: 28px 0 0;
      color: var(--muted);
      font-size: .76rem;
    }

    
    .proof-section {
      overflow: hidden;
      background: var(--bg);
      color: var(--paper);
    }

    .proof-section .utility { color: var(--accent); }

    .proof-grid {
      display: grid;
      grid-template-columns: 7fr 5fr;
      gap: clamp(36px, 7vw, 100px);
      align-items: end;
    }

    .proof-primary {
      margin-left: calc(var(--page-pad) * -.42);
    }

    .proof-kicker {
      display: block;
      margin-left: calc(var(--page-pad) * .42);
      font-size: .72rem;
      font-weight: 600;
      letter-spacing: .16em;
      text-transform: uppercase;
    }

    .proof-number {
      display: block;
      font-family: var(--display);
      font-size: clamp(12rem, 29vw, 31rem);
      font-weight: 800;
      letter-spacing: -.075em;
      line-height: .62;
      
      padding-top: .09em;
      white-space: nowrap;
    }

    .proof-caption {
      display: flex;
      align-items: center;
      gap: 22px;
      margin: 28px 0 0 calc(var(--page-pad) * .42);
      font-family: var(--display);
      font-size: clamp(2.2rem, 4.3vw, 4.6rem);
      font-weight: 700;
      letter-spacing: -.02em;
      line-height: .92;
      text-transform: uppercase;
    }

    .proof-caption::before {
      content: "";
      width: clamp(42px, 8vw, 116px);
      height: 2px;
      background: var(--accent);
    }

    .proof-secondary { border-top: 1px solid var(--line-strong); }

    .proof-fact {
      display: grid;
      grid-template-columns: 1fr 1fr;
      align-items: end;
      gap: 18px;
      border-bottom: 1px solid var(--line);
      padding-block: 28px;
    }

    .proof-fact strong {
      font-family: var(--display);
      font-size: clamp(3rem, 6vw, 6.4rem);
      font-weight: 700;
      letter-spacing: -.04em;
      line-height: .82;
      text-transform: uppercase;
    }

    .proof-fact p {
      margin: 0;
      font-size: .88rem;
      line-height: 1.45;
    }

    .standards-strip {
      grid-column: 1 / -1;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
      border-top: 1px solid var(--line-strong);
      margin-top: 66px;
      padding-top: 20px;
      color: rgba(255, 255, 255, .88);
      font-family: var(--display);
      font-size: clamp(1.2rem, 2.1vw, 2rem);
      font-weight: 600;
      letter-spacing: .08em;
      text-transform: uppercase;
    }

    .standards-strip span + span::before {
      content: "—";
      margin-right: clamp(18px, 4vw, 64px);
      color: var(--accent);
    }

    
    .compat-section { background: var(--bg); }

    .compat-grid {
      display: grid;
      grid-template-columns: minmax(0, 7fr) minmax(300px, 5fr);
      gap: clamp(44px, 7vw, 100px);
      align-items: center;
    }

    .compat-brand-panel {
      position: relative;
      min-height: clamp(430px, 53vw, 680px);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      padding: clamp(28px, 4vw, 56px);
      border: 1px solid rgba(var(--accent-rgb), .55);
      border-radius: 14px;
      box-shadow: 0 0 24px rgba(var(--accent-rgb), .16);
      transition: box-shadow .35s ease, border-color .35s ease;
      background:
        linear-gradient(135deg, rgba(var(--accent-rgb), .2), transparent 42%),
        linear-gradient(180deg, var(--surface), #0e2121);
    }

    .compat-brand-panel::after {
      content: none;
      position: absolute;
      right: -.04em;
      bottom: -.16em;
      color: rgba(255, 255, 255, .045);
      font-family: var(--display);
      font-size: clamp(15rem, 31vw, 30rem);
      font-weight: 800;
      letter-spacing: -.08em;
      line-height: 1;
      pointer-events: none;
    }

    .compat-brand-head {
      position: relative;
      z-index: 1;
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .compat-brand-head strong {
      color: var(--paper);
      font-family: var(--display);
      font-size: clamp(2.6rem, 5vw, 5.4rem);
      font-weight: 700;
      letter-spacing: -.04em;
      line-height: .85;
    }

    
    .compat-photo {
      position: relative;
      z-index: 1;
      margin: clamp(16px, 2.5vw, 30px) 0 clamp(18px, 2.5vw, 28px);
    }

    .compat-photo img {
      display: block;
      width: min(100%, 470px);
      height: auto;
      margin-inline: auto;
      filter: drop-shadow(0 26px 34px rgba(0, 0, 0, .5));
    }

    .compat-panel-label {
      position: relative;
      z-index: 1;
      margin: auto 0 18px;
      color: var(--accent-light);
      font-size: .7rem;
      font-weight: 600;
      letter-spacing: .14em;
      text-transform: uppercase;
    }

    .compat-equation {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
      align-items: center;
      gap: clamp(12px, 2vw, 26px);
      border-top: 1px solid rgba(255, 255, 255, .28);
      padding-top: clamp(18px, 2.5vw, 30px);
      font-family: var(--display);
      
      font-size: clamp(2rem, 3.6vw, 2.95rem);
      font-weight: 700;
      letter-spacing: -.025em;
      line-height: .92;
      text-transform: uppercase;
    }

    .compat-equation b {
      color: var(--accent);
      font-size: 1.25em;
      font-weight: 500;
    }

    .compat-panel-standards {
      position: relative;
      z-index: 1;
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: clamp(24px, 4vw, 48px);
      padding-top: 16px;
      border-top: 1px solid rgba(255, 255, 255, .16);
    }

    .compat-panel-standards span {
      padding: 8px 11px;
      border: 1px solid rgba(255, 255, 255, .25);
      color: rgba(255, 255, 255, .78);
      font-size: .68rem;
      font-weight: 600;
      letter-spacing: .1em;
      text-transform: uppercase;
    }

    .compat-copy h2 { margin-block: 18px 28px; padding-top: .11em; }

    .compat-copy > p {
      margin: 0;
      color: var(--muted);
      font-size: 1rem;
      line-height: 1.65;
    }

    .standard-definitions {
      margin-block: 34px;
      border-top: 1px solid var(--line);
    }

    .standard-row {
      display: grid;
      grid-template-columns: 88px 1fr;
      gap: 18px;
      border-bottom: 1px solid var(--line);
      padding-block: 18px;
    }

    .standard-row strong {
      color: var(--accent-light);
      font-family: var(--display);
      font-size: 1.5rem;
      font-weight: 600;
      text-transform: uppercase;
    }

    .standard-row p {
      margin: 0;
      color: var(--muted);
      font-size: .86rem;
    }

    
    .platform-section { background: var(--night); }

    .platform-lead {
      display: grid;
      grid-template-columns: 4fr 8fr;
      gap: 24px;
      margin-bottom: 64px;
    }

    .platform-lead h2 {
      margin: 0;
      padding-top: .11em;
      font-family: var(--display);
      font-size: clamp(3.8rem, 8vw, 8rem);
      font-weight: 700;
      letter-spacing: -.04em;
      line-height: .92;
      text-transform: uppercase;
    }

    .platform-lead p {
      align-self: end;
      max-width: 530px;
      margin: 0 0 5px auto;
      color: var(--muted);
    }

    .platform-tabs {
      border-top: 1px solid var(--line);
    }

    .platform-tablist {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      border-bottom: 1px solid var(--line);
    }

    .platform-tab {
      min-height: 120px;
      min-width: 0;
      border: 0;
      border-right: 1px solid var(--line);
      padding: 22px 20px;
      color: rgba(255, 255, 255, .5);
      background: transparent;
      font-family: var(--display);
      
      font-size: clamp(2rem, 3.9vw, 3.55rem);
      font-weight: 700;
      letter-spacing: -.025em;
      line-height: .9;
      text-align: left;
      text-transform: uppercase;
      font-kerning: normal;
      cursor: pointer;
      transition: color .3s ease, background-color .3s ease;
    }

    .platform-tab:last-child { border-right: 0; }

    .platform-tab[aria-selected="true"] {
      color: var(--paper);
      background: var(--asphalt-light);
    }

    .platform-panel {
      display: grid;
      grid-template-columns: 4fr 8fr;
      gap: 24px;
      min-height: 240px;
      padding-block: 42px;
    }

    .platform-panel h3 {
      max-width: 720px;
      margin: 0 0 16px;
      padding-top: .11em;
      font-family: var(--display);
      font-size: clamp(2.4rem, 4.7vw, 5.2rem);
      font-weight: 600;
      letter-spacing: -.025em;
      line-height: .92;
      text-transform: uppercase;
    }

    .platform-panel p {
      max-width: 660px;
      margin: 0;
      color: var(--muted);
      line-height: 1.65;
    }

    
    .outro-content {
      position: relative;
      z-index: 5;
      display: flex;
      flex-direction: column;
      justify-content: center;
      min-height: inherit;
      padding-block: calc(var(--header-h) + 42px) clamp(56px, 9vh, 100px);
    }

    .outro-message {
      margin: 0 0 14px;
      font-family: var(--display);
      font-size: clamp(4.2rem, 9vw, 9.2rem);
      font-weight: 700;
      letter-spacing: -.04em;
      line-height: .92;
      text-transform: uppercase;
    }

    .final-cta {
      align-self: flex-end;
      width: min(650px, 56vw);
      margin-top: clamp(28px, 6vh, 64px);
      border-top: 1px solid var(--accent);
      padding-top: 20px;
    }

    .final-cta h2 { margin-bottom: 18px; padding-top: .11em; }

    .final-cta p {
      max-width: 490px;
      margin: 0 0 24px;
      color: var(--muted);
    }


    
    .site-footer {
      border-top: 1px solid var(--line);
      padding-block: 58px 28px;
      background: var(--surface);
    }

    /* Contacts sit together on the right, each label right above its value. */
    .footer-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) repeat(4, auto);
      border-top: 1px solid var(--line-strong);
    }

    .footer-cell {
      margin: 0;
      border-right: 1px solid var(--line);
      padding: 18px clamp(20px, 2.4vw, 34px);
    }

    .footer-cell:first-child { padding-left: 0; border-right: 0; }
    .footer-cell:last-child { border-right: 0; padding-right: 0; }

    .footer-brand {
      display: flex;
      align-items: flex-start;
    }

    
    .footer-logo {
      width: clamp(190px, 21vw, 260px);
      height: auto;
    }

    .footer-cell dt {
      margin-bottom: 4px;
      color: var(--accent);
      font-size: .66rem;
      font-weight: 600;
      letter-spacing: .13em;
      text-transform: uppercase;
    }

    .footer-cell dd { margin: 0; }

    .footer-cell a,
    .footer-cell address {
      color: var(--paper);
      font-size: .86rem;
      font-style: normal;
      line-height: 1.55;
    }

    .footer-cell a {
      display: inline-block;
      padding-block: 6px;
      border-bottom: 1px solid transparent;
    }

    .footer-cell a:hover { border-color: var(--accent); }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 24px;
      border-top: 1px solid var(--line);
      margin-top: 34px;
      padding-top: 20px;
      color: var(--muted);
      font-size: .7rem;
      letter-spacing: .06em;
      text-transform: uppercase;
    }

    
    /* Short fade up, as on esaveag.com; quick enough that reading never waits. */
    .js [data-reveal] {
      opacity: 0;
      transform: translateY(16px);
      transition: opacity .6s ease, transform .7s var(--ease);
    }

    .js [data-reveal].is-visible { opacity: 1; transform: none; }

    @media (max-width: 1050px) {
      .main-nav { gap: 17px; }
      .main-nav a { font-size: .66rem; }
      .chapter-heading { grid-template-columns: 1fr 5fr 2fr; }
      .product-layout { grid-template-columns: minmax(0, 7fr) minmax(300px, 5fr); }
      .footer-grid { grid-template-columns: repeat(4, auto); justify-content: start; }
      .footer-cell:first-child { grid-column: 1 / -1; }
      .footer-cell:nth-child(2) { padding-left: 0; }
    }

    @media (max-width: 900px) {
      :root { --header-h: 68px; }

      .header-inner { grid-template-columns: auto 1fr auto; }
      .main-nav,
      .header-cta { display: none; }
      .menu-button { display: block; justify-self: end; }

      .no-js .menu-button { display: none; }
      .no-js .header-cta { display: inline-flex; justify-self: end; }

      .main-nav.is-open {
        position: fixed;
        z-index: 899;
        inset: var(--header-h) 0 auto;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        justify-content: center;
        justify-self: stretch;
        gap: 0;
        width: 100vw;
        height: calc(100vh - var(--header-h));
        height: calc(100svh - var(--header-h));
        max-height: calc(100svh - var(--header-h));
        padding: 24px var(--page-pad) 42px;
        overflow-y: auto;
        background: var(--night-deep);
      }

      .main-nav.is-open a {
        display: flex;
        align-items: center;
        min-height: 68px;
        border-top: 1px solid var(--line);
        color: var(--paper);
        font-family: var(--display);
        font-size: clamp(2.1rem, 8vw, 4.5rem);
        font-weight: 600;
        letter-spacing: -.01em;
        line-height: 1;
      }

      .main-nav.is-open a:last-child { border-bottom: 1px solid var(--line); }

      

      .main-nav.is-open a::after { display: none; }

      .hero-title { font-size: clamp(4.7rem, 15vw, 8.6rem); }
      .hero-intro { width: min(690px, 78vw); }
      .hero-stat { width: min(310px, 39vw); }
      .detection-ring { left: 68%; }

      .chapter-heading {
        grid-template-columns: 64px 1fr;
      }

      .chapter-heading > p:last-child {
        grid-column: 2;
        width: min(520px, 100%);
      }

      .system-grid { grid-template-columns: 1fr; gap: 16px; }

      .system-visual {
        position: relative;
        top: auto;
        min-height: 62vw;
        max-height: 620px;
      }

      .system-visual::before { width: min(55vw, 430px); }
      .step { min-height: 44vh; }

      .product-layout {
        display: flex;
        flex-direction: column;
      }

      .product-stage {
        position: relative;
        top: auto;
        order: -1;
        display: grid;
        width: 100%;
        min-height: min(74vw, 520px);
        margin-bottom: 28px;
        border-bottom: 1px solid var(--line);
        border-left: 0;
      }

      .product-row {
        grid-template-columns: 64px minmax(0, 1fr) auto;
      }

      .proof-grid { grid-template-columns: 1fr; }
      .proof-primary { margin-left: calc(var(--page-pad) * -.25); }
      .proof-number { font-size: clamp(12rem, 46vw, 25rem); }
      .proof-secondary { display: grid; grid-template-columns: 1fr 1fr; }
      .proof-fact { grid-template-columns: 1fr; }
      .standards-strip { margin-top: 42px; }

      .compat-grid { grid-template-columns: 1fr; }
      .compat-copy { width: min(680px, 100%); }

      .platform-tablist { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .platform-tab:nth-child(2) { border-right: 0; }
      .platform-tab:nth-child(-n+2) { border-bottom: 1px solid var(--line); }

      .outro-message { font-size: clamp(4rem, 11vw, 7rem); }
      .final-cta { width: min(620px, 70vw); }
    }

    @media (max-width: 700px) {
      :root { --page-pad: 20px; }

      
      h1, h2, h3 { overflow-wrap: anywhere; }

      .brand-logo-wrap { width: 120px; }


      .hero-title {
        margin-block: 16px 18px;
        font-size: clamp(4.2rem, 20.5vw, 6.5rem);
        line-height: .92;
      }

      .hero-lead { max-width: 360px; font-size: .92rem; }
      .hero-stat { width: 245px; }
      .hero-stat strong { font-size: clamp(5rem, 25vw, 7rem); }
      .detection-ring,
      .scroll-cue { display: none; }

      .section { padding-block: 86px; }

      .chapter-heading {
        grid-template-columns: 46px 1fr;
        gap: 16px;
        margin-bottom: 54px;
      }

      .chapter-heading h2,
      .compat-copy h2,
      .platform-lead h2,
      .final-cta h2 { font-size: clamp(3.25rem, 15vw, 5rem); }

      .chapter-heading > p:last-child { grid-column: 1 / -1; }

      .system-visual { min-height: 84vw; }
      .system-visual img { width: 96%; }
      .system-visual::before { width: 68vw; }

      .step {
        grid-template-columns: 48px 1fr;
        min-height: 50vh;
        padding-block: 44px;
      }

      .step h3 { font-size: clamp(2.75rem, 14vw, 4.3rem); }
      .step p { font-size: .92rem; }

      .product-row {
        grid-template-columns: 46px 1fr;
        gap: 14px;
        padding-block: 26px;
      }

      .product-side {
        grid-column: 2;
        display: grid;
        grid-template-columns: 1fr 1fr;
        align-items: end;
        min-width: 0;
        text-align: left;
      }

      .product-side .text-link { justify-self: end; }
      .product-row.is-active { padding-left: 10px; }

      .proof-section { padding-block: 96px; }
      .proof-kicker { margin-left: 20px; }
      .proof-caption { margin-left: 20px; }
      .proof-secondary { grid-template-columns: 1fr; }
      .proof-fact { grid-template-columns: 1fr 1fr; }
      .standards-strip { align-items: flex-start; flex-direction: column; gap: 10px; }
      .standards-strip span + span::before { margin-right: 14px; }

      .compat-brand-panel { min-height: 440px; }
      .compat-equation { grid-template-columns: 1fr; }
      .compat-equation b { line-height: .5; }

      .platform-lead,
      .platform-panel { grid-template-columns: 1fr; }
      .platform-lead p { margin-left: 0; }
      .platform-tab { min-height: 92px; font-size: clamp(1.7rem, 8.2vw, 2.6rem); }

      .outro-message { font-size: clamp(3.6rem, 17vw, 5.8rem); }
      .final-cta { width: 100%; }

      .footer-grid { grid-template-columns: repeat(2, auto); gap: 18px 36px; padding-top: 18px; }
      .footer-cell { border-right: 0; padding: 0; }
      .footer-bottom { align-items: flex-start; flex-direction: column; gap: 8px; }
    }

    @media (max-width: 430px) {
      .hero-title { font-size: clamp(3.8rem, 19.6vw, 5.1rem); }
      .hero-title .indent { margin-left: .16em; }
      .hero-stat { width: 210px; }
      .hero-stat p { font-size: .76rem; }
      .step { min-height: 46vh; }
      .product-main h3 { font-size: 1.8rem; }
      .product-price { font-size: 1.45rem; }
      .proof-fact { grid-template-columns: 1fr; }
      .standard-row { grid-template-columns: 72px 1fr; }
      .platform-tab { min-height: 80px; padding: 16px 12px; }
    }

    @media (max-width: 700px) and (max-height: 700px) {
      .hero-title { font-size: clamp(3.45rem, 17vw, 4.65rem); }
      .hero-stat { width: 190px; }
      .outro-message { font-size: clamp(3rem, 14vw, 4.45rem); }
      .final-cta h2 { font-size: clamp(2.65rem, 13vw, 4rem); }
    }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
      }
      .js [data-reveal] { opacity: 1; transform: none; }
      .scrub-video,
      .detection-ring { display: none; }
    }

    @media print {
      .site-header, .scrub-video, .scroll-cue, .hero-chapter, .dot-field, .cursor-layer { display: none !important; }
      body, .site-footer, .section { color: #000 !important; background: #fff !important; }
      .scrub-scene { height: auto !important; min-height: 0 !important; }
      .scrub-stage { position: relative; height: auto; min-height: 600px; }
      .hero-intro, .hero-stat, .final-cta, .outro-message { opacity: 1 !important; transform: none !important; }
      .section { padding-block: 40px; }
    }
  
/* Targeted eSave content adaptation; original section order and film spans remain. */
.hero-intro { width: min(710px, 59vw); }
.hero-title { max-width: 710px; font-size: clamp(3.75rem, 6.3vw, 6.5rem); line-height: 1; letter-spacing: -.035em; margin-block: 14px 24px; }
.hero-lead { width: min(600px, 100%); max-width: none; font-size: 1rem; line-height: 1.6; margin-bottom: 18px; }
.hero-stat p { color: var(--paper); }
.chapter-heading { grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); }
.chapter-heading > p:last-child { grid-column: auto; }
.step { grid-template-columns: minmax(0, 1fr); min-height: 38vh; padding-block: 44px; }
.step[data-step="2"] { min-height: 28vh; }
.platform-panel { grid-template-columns: minmax(0, 1fr); }
.product-side { min-width: 110px; }
.proof-number { font-size: clamp(8rem, 22vw, 20rem); line-height: .9; }
.proof-note { max-width: 460px; margin: 20px 0 0 20px; color: var(--muted); font-size: .92rem; }
.main-nav a[aria-current="location"] { color: var(--accent); }
.main-nav a[aria-current="location"]::after { transform: scaleX(1); }
.main-nav.is-open a[aria-current="location"] { color: var(--accent-light); }
.main-nav.is-open { overscroll-behavior: contain; }
.compat-brand-head strong { text-transform: none; }
.compat-brand-panel::after { content: none; }
.footer-cell address { white-space: pre-line; padding-block: 6px; }
.platform-tab { color: var(--muted); }
.platform-tab:hover, .platform-tab[aria-selected="true"] { color: var(--paper); }
.text-link { min-height: 32px; }
.product-code { color: var(--accent-light); }
@media (max-width: 1050px) {
 .hero-title { font-size: clamp(3.5rem, 7vw, 5rem); }
 .hero-intro { width: min(710px, 75vw); }
}
@media (max-width: 900px) {
 .chapter-heading { grid-template-columns: 1fr; gap: 24px; }
 .chapter-heading > p:last-child { grid-column: 1; }
 .step { min-height: 0; padding-block: 44px; }
 .step[data-step="2"] { min-height: 0; }
}
@media (max-width: 700px) {
 .hero-intro { width: 100%; }
 .hero-title { font-size: clamp(2.65rem, 12.5vw, 4.8rem); line-height: 1.02; margin-block: 14px 20px; padding-top: .08em; }
 .hero-lead { font-size: .94rem; line-height: 1.55; }
 .hero-intro .utility { font-size: .68rem; }
 .hero-stage::after { content: none; }
 /* Phone: text, then the whole 16:9 film, then the figure; nothing is laid over the video. */
 .hero-stage { display: grid; grid-template-columns: minmax(0, 1fr); align-content: start; }
 .hero-content { display: contents; }
 .hero-intro { grid-row: 1; padding: calc(var(--header-h) + 24px) var(--page-pad) 28px; }
 .hero-poster { grid-row: 2; grid-column: 1; position: relative; inset: auto; height: auto; aspect-ratio: 16 / 9; }
 .hero-stat { grid-row: 3; justify-self: end; margin: 28px var(--page-pad) 56px; }
 .hero-title { overflow-wrap: normal; }
 .chapter-heading { grid-template-columns: minmax(0,1fr); margin-bottom: 36px; }
 .step { grid-template-columns: minmax(0,1fr); padding-block: 34px; }
 .product-side { grid-template-columns: 1fr; justify-items: start; }
 .product-side .text-link { justify-self: start; }
 .proof-number { font-size: clamp(8rem, 46vw, 18rem); }
 .proof-note { margin-left: 20px; }
 .final-cta h2 { font-size: clamp(2.65rem, 12vw, 4rem); line-height: 1; }
 .scroll-cue { bottom: 20px; }
}

/* Transparent PNG logo made for dark surfaces. */
.footer-logo-wrap { display: block; width: clamp(170px, 18vw, 220px); }
.footer-logo { width: 100%; }
.footer-brand { padding-right: 16px; }
.no-js .site-header { position: relative; height: auto; }
.no-js .header-inner { display: flex; flex-wrap: wrap; padding-block: 8px; }
.no-js .main-nav { display: flex; flex-wrap: wrap; order: 3; width: 100%; }
.no-js .menu-button { display: none; }
@media (max-width: 1050px) { .header-inner { gap: 18px; } }
@media (max-width: 700px) {
 .brand-logo-wrap { width: 124px; }
}

/*
  eSave brand layer (esaveag.com): lime section titles, glowing cards and the explainer film as
  a player in the closing scene. The esaveag.com details follow below.
*/
.chapter-heading h2, .compat-copy h2, .platform-lead h2, .final-cta h2 { color: var(--accent); }
.hero-stat strong { color: var(--accent); }


.compat-brand-panel:hover { border-color: var(--lime); box-shadow: 0 0 0 1px var(--lime), 0 0 36px rgba(var(--lime-rgb), .42); }
.product-row.is-active { background: linear-gradient(90deg, rgba(var(--lime-rgb), .1), transparent 70%); }
.platform-tab[aria-selected="true"] { box-shadow: inset 0 -2px 0 var(--lime); }

/* Explainer film: an ordinary player with sound, started by the visitor. */
.outro-film {
  width: min(980px, 100%);
  margin-top: clamp(32px, 6vh, 64px);
  overflow: hidden;
  border: 1px solid rgba(var(--lime-rgb), .55);
  border-radius: 14px;
  background: #000;
  box-shadow: 0 0 28px rgba(var(--lime-rgb), .2);
}
.outro-film video { width: 100%; height: auto; aspect-ratio: 16 / 9; background: #000; }

/*
  esaveag.com details (owner's screen recording and screenshot, 21. 10. 2026): wide Archivo
  headings in ordinary case, white copy on #0a0a0a with lime dots (canvas, app.js), pill buttons
  that fill lime under the mouse, cards that light up, a transparent header with "⋮ Menu"
  opening a full-screen menu, and the anatomy film on a soft cloud in the dark.
*/
body { background: var(--bg); }
main, .site-footer { position: relative; z-index: 1; }
.system-section, .products-section, .proof-section, .compat-section, .platform-section,
.outro-scene { background: transparent; }

.dot-field,
.cursor-layer {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.dot-field { z-index: 0; }
.cursor-layer { z-index: 3000; }

/* Headings: wide, heavy, ordinary case. */
.hero-title, .hero-stat strong, .chapter-heading h2,
.compat-copy h2, .final-cta h2, .platform-lead h2, .step h3, .product-code, .product-main h3,
.product-price, .product-stage::before, .proof-number, .proof-caption, .proof-fact strong,
.standards-strip, .compat-brand-head strong, .compat-equation, .standard-row strong,
.platform-tab, .platform-panel h3, .outro-message {
  font-stretch: 125%;
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.04;
  text-transform: none;
}
/* The hero title is stored in capitals; shown as a sentence like the other headings. */
.hero-title { text-transform: lowercase; max-width: 860px; margin-block: 16px 24px; padding-top: 0; font-size: clamp(2.3rem, 5.2vw, 4.7rem); }
.hero-title::first-letter { text-transform: uppercase; }
@media (min-width: 701px) { .hero-intro { width: min(860px, 66vw); } }
.hero-stat strong { font-size: clamp(3.2rem, 6.5vw, 5.6rem); }
.chapter-heading h2, .compat-copy h2, .final-cta h2, .platform-lead h2 { font-size: clamp(1.9rem, 3.7vw, 3.4rem); line-height: 1.08; }
.step h3 { font-size: clamp(1.6rem, 3vw, 2.7rem); }
.product-code { letter-spacing: .02em; }
.product-main h3 { font-size: clamp(1.15rem, 1.9vw, 1.65rem); }
.product-stage::before { font-size: clamp(1.8rem, 3vw, 3rem); }
.proof-number { font-size: clamp(6rem, 17vw, 15rem); line-height: .95; letter-spacing: -.03em; }
.proof-caption { font-size: clamp(1.4rem, 2.6vw, 2.3rem); }
.proof-fact strong { font-size: clamp(1.9rem, 3.8vw, 3.4rem); }
.standards-strip { font-size: clamp(.95rem, 1.4vw, 1.2rem); letter-spacing: .02em; }
.compat-brand-head strong { font-size: clamp(1.7rem, 3.2vw, 2.8rem); }
.compat-equation { font-size: clamp(1.25rem, 2.2vw, 1.85rem); }
.standard-row strong { font-size: 1.1rem; }
.platform-tab { min-height: 88px; font-size: clamp(1.05rem, 1.9vw, 1.7rem); }
.platform-panel h3 { font-size: clamp(1.5rem, 2.8vw, 2.6rem); }
.outro-message { font-size: clamp(2.1rem, 5.4vw, 4.8rem); }
.hero-lead, .chapter-heading > p:last-child, .product-main p, .price-note, .proof-note,
.compat-copy > p, .standard-row p, .platform-lead p, .platform-panel p, .final-cta p { color: var(--paper); }

/* Buttons: dark petrol pill with a lime rim and glow; under the mouse they fill lime. */
.header-cta,
.button,
.text-link,
.hero-text-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 2px solid var(--lime);
  border-radius: 999px;
  padding: 10px 26px;
  color: var(--paper);
  background: var(--surface);
  box-shadow: 0 0 2px rgba(var(--lime-rgb), .9), 0 0 16px rgba(var(--lime-rgb), .55);
  font-family: var(--body);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.2;
  text-transform: none;
  transition: background-color .2s ease, color .2s ease, box-shadow .2s ease;
}
/* Secondary pill ("Learn more" on esaveag.com): olive fill, smaller. */
.text-link,
.hero-text-link {
  min-height: 40px;
  padding: 8px 20px;
  color: #e9eee4;
  background: var(--olive);
  font-size: .95rem;
}
.header-cta:hover, .header-cta:focus-visible,
.button:hover, .button:focus-visible,
.text-link:hover, .text-link:focus-visible,
.hero-text-link:hover, .hero-text-link:focus-visible {
  color: var(--bg);
  background: var(--lime);
  box-shadow: 0 0 26px rgba(var(--lime-rgb), .75);
}
.button .arrow, .text-link .arrow, .hero-text-link .arrow { margin-left: 10px; }

/* Cards: thin lime rim at rest; petrol fill and a strong glow under the mouse or when chosen. */
.compat-brand-panel,
.product-card,
.platform-panel {
  border: 1px solid rgba(var(--lime-rgb), .55);
  border-radius: 16px;
  background: transparent;
  box-shadow: none;
  transition: background-color .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.compat-brand-panel:hover, .compat-brand-panel:focus-within,
.product-card:hover, .product-card:focus-within,
.platform-panel:hover, .platform-panel:focus-within {
  border-color: var(--lime);
  background: var(--surface-light);
  box-shadow: 0 0 0 1px var(--lime), 0 0 44px rgba(var(--lime-rgb), .5);
}
.product-list { display: grid; gap: 18px; border-top: 0; }
.product-row, .product-row.is-active { padding: 24px 26px; }
.product-row::before { content: none; }
.platform-panel { margin-top: 28px; padding: clamp(24px, 4vw, 44px); }
.platform-tab[aria-selected="true"] { color: var(--lime); background: transparent; box-shadow: inset 0 -2px 0 var(--lime); }
@media (max-width: 700px) {
  .product-row, .product-row.is-active { grid-template-columns: 58px minmax(0, 1fr); padding: 20px 18px; }
}

/* Header: clear over the hero, solid page colour once scrolled; links live in the menu. */
.site-header { border-bottom: 0; background: transparent; backdrop-filter: none; }
.site-header.is-scrolled, .site-header.menu-visible { background: var(--bg); }
.header-inner { display: flex; align-items: center; gap: 22px; }
.header-cta { margin-left: auto; padding-inline: 22px; }
.js .main-nav:not(.is-open) { display: none; }
.menu-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: auto;
  height: 44px;
  padding: 0 2px;
  color: var(--paper);
  font-family: var(--body);
  font-size: 1rem;
  font-weight: 500;
}
.menu-icon { position: relative; display: grid; gap: 4px; width: 16px; justify-items: center; }
.menu-icon span {
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--lime);
  transition: transform .25s ease, opacity .25s ease, width .25s ease, height .25s ease, border-radius .25s ease;
}
.menu-button[aria-expanded="true"] .menu-icon span { width: 16px; height: 2px; border-radius: 1px; }
.menu-button[aria-expanded="true"] .menu-icon span:first-child { transform: translateY(6px) rotate(45deg); }
.menu-button[aria-expanded="true"] .menu-icon span:nth-child(2) { opacity: 0; }
.menu-button[aria-expanded="true"] .menu-icon span:last-child { transform: translateY(-6px) rotate(-45deg); }
.no-js .menu-button { display: none; }
.no-js .header-cta { margin-left: auto; }
@media (max-width: 600px) {
  .header-cta { display: none; }
  .menu-button { margin-left: auto; }
}

/* Full-screen menu: links on the left, the module in a glowing circle on the right. The menu
   sits inside the header, so logo, button and close stay above it. */
.menu-visual { display: none; }
.brand, .header-cta, .menu-button { position: relative; z-index: 900; }
.main-nav.is-open {
  position: fixed;
  z-index: 899;
  inset: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  grid-auto-rows: min-content;
  align-content: center;
  align-items: center;
  gap: 6px 48px;
  width: 100vw;
  height: 100vh;
  height: 100svh;
  max-height: none;
  padding: calc(var(--header-h) + 32px) max(var(--page-pad), calc((100vw - var(--content)) / 2)) 48px;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--bg);
}
.main-nav.is-open a {
  grid-column: 1;
  display: flex;
  align-items: center;
  min-height: 52px;
  border: 0;
  padding: 4px 0;
  color: var(--paper);
  font-family: var(--body);
  font-size: clamp(1.25rem, 2.2vw, 1.7rem);
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.2;
  text-transform: none;
  transition: color .2s ease;
}
.main-nav.is-open a::after { display: none; }
.main-nav.is-open a:hover,
.main-nav.is-open a:focus-visible,
.main-nav.is-open a[aria-current="location"] { color: var(--lime); }
.main-nav.is-open .menu-visual {
  display: block;
  grid-column: 2;
  grid-row: 1 / span 5;
  justify-self: center;
  width: min(360px, 32vw);
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 45%, #1a1a1a, #000 70%);
  box-shadow: 0 0 0 2px rgba(var(--lime-rgb), .6), 0 0 60px rgba(var(--lime-rgb), .45);
}
.menu-visual img { width: 100%; height: 100%; padding: 14%; object-fit: contain; }
@media (max-width: 700px) {
  .main-nav.is-open { grid-template-columns: minmax(0, 1fr); align-content: start; }
  .main-nav.is-open .menu-visual { grid-column: 1; grid-row: auto; justify-self: start; width: 160px; margin-top: 28px; }
}

/* The product photo carries its own dark backdrop; framed like the cards, it reads as a panel. */
.product-stage img {
  border: 1px solid rgba(var(--lime-rgb), .55);
  border-radius: 16px;
  box-shadow: 0 0 30px rgba(var(--lime-rgb), .18);
  filter: none;
  transform: none;
}

/*
  Owner's critique, 21. 10. 2026: ordinary scrolling; all four steps on one screen; the modules
  as three cards like the e-shop; small labels in ordinary letters.
*/
.section { padding-block: clamp(88px, 10vw, 140px); }
.section-rule { border-top: 0; }
.chapter-heading {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 14px 48px;
  align-items: end;
  margin-bottom: clamp(22px, 4vh, 44px);
}
.chapter-heading > p:last-child { grid-column: auto; width: auto; margin: 0; }

/* Labels as written, without spaced capitals. */
.utility, .hero-stat .small, .proof-kicker, .compat-panel-label, .compat-panel-standards span,
.footer-cell dt, .footer-bottom, .stock, .standards-strip {
  letter-spacing: .01em;
  text-transform: none;
}
.utility, .hero-stat .small, .proof-kicker, .compat-panel-label, .footer-cell dt { font-size: .92rem; font-weight: 500; }

/*
  "Od pohybu k svetlu": the street animation in the middle, two steps on each side. Read down the
  left column, then down the right (01–04), so the longer and shorter texts balance out.
*/
.system-grid {
  grid-template-areas: "s1 film s3" "s2 film s4";
  grid-template-columns: minmax(0, 3fr) minmax(0, 6fr) minmax(0, 3fr);
  grid-template-rows: auto auto;
  gap: clamp(28px, 5vh, 56px) clamp(20px, 2.5vw, 40px);
  align-items: stretch;
  counter-reset: step;
}
.system-visual {
  grid-area: film;
  position: relative;
  top: auto;
  display: block;
  align-self: center;
  min-height: 0;
  max-height: none;
  overflow: visible;
}
.system-visual::before, .system-visual::after { content: none; }
/* The animation's backdrop is the page colour, so it can reach past its column into the gaps;
   the edges fade softly so the dots show through around the street. The steps stay on top. */
.system-film {
  display: block;
  width: 128%;
  max-width: none;
  height: auto;
  margin-inline: -14%;
  aspect-ratio: 16 / 9;
  -webkit-mask-image: radial-gradient(closest-side, #000 78%, transparent 100%);
  mask-image: radial-gradient(closest-side, #000 78%, transparent 100%);
}
.steps .step { position: relative; z-index: 1; }
.steps { display: contents; }
.steps .step {
  display: block;
  min-height: 0;
  border-top: 1px solid var(--line);
  border-bottom: 0;
  padding: 16px 0 0;
  color: var(--paper);
  counter-increment: step;
}
.steps .step::before {
  content: "0" counter(step);
  display: block;
  margin-bottom: 6px;
  color: var(--accent);
  font-family: var(--display);
  font-size: .9rem;
  font-stretch: 125%;
  font-weight: 800;
}
.steps .step[data-step="1"] { grid-area: s1; align-self: start; }
.steps .step[data-step="2"] { grid-area: s2; align-self: start; }
.steps .step[data-step="3"] { grid-area: s3; align-self: start; }
.steps .step[data-step="4"] { grid-area: s4; align-self: start; }
.steps .step h3 { margin-bottom: 8px; font-size: clamp(1.2rem, 1.7vw, 1.6rem); }
.steps .step p { width: auto; margin: 0; font-size: .95rem; line-height: 1.5; }

/* Modules: three cards like the e-shop. The name never breaks after its hyphen. */
.product-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 2vw, 28px); }
.product-card { display: flex; flex-direction: column; gap: 10px; padding: 18px 18px 22px; }
/* The whole module stays in view on the page black; under the mouse the photo's black melts
   into the lit card. */
.product-card img { width: 100%; height: auto; margin-bottom: 6px; aspect-ratio: 16 / 10; object-fit: contain; background: var(--bg); mix-blend-mode: lighten; }
.product-card .product-code { color: var(--accent); font-size: .95rem; }
.product-card h3 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(.95rem, 1.2vw, 1.2rem);
  font-stretch: 100%;
  font-weight: 800;
  line-height: 1.15;
  white-space: nowrap;
}
.product-card p { flex: 1; margin: 0; color: var(--paper); font-size: .95rem; line-height: 1.5; }
.product-card .text-link { align-self: flex-start; margin-top: 6px; }
.products-section .price-note { margin: 16px 0 0; color: var(--muted); font-size: .85rem; }
/* Narrower screens: the cards stand one under another; on tablets photo and text side by side. */
@media (max-width: 1100px) {
  .product-cards { grid-template-columns: minmax(0, 1fr); gap: 18px; }
}
@media (min-width: 701px) and (max-width: 1100px) {
  .product-card { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 3fr); grid-template-rows: auto auto 1fr auto; column-gap: 24px; row-gap: 8px; }
  .product-card img { grid-row: 1 / span 4; align-self: center; margin: 0; }
  .product-card .text-link { justify-self: start; }
}
@media (max-width: 700px) {
  .product-card img { aspect-ratio: 16 / 9; }
  .product-card h3 { font-size: min(1.05rem, 4.2vw); }
}

/* Proof and compatibility trimmed to one screen. */
.proof-number { font-size: clamp(5rem, 13vw, 11rem); }
.compat-brand-panel { min-height: 0; padding: clamp(20px, 2.6vw, 36px); }
.compat-photo { margin: 12px 0 16px; }
.compat-photo img { width: min(100%, 380px); }
.standard-definitions { margin-block: 22px; }
.standard-row { padding-block: 12px; }

/* Phones: the hero photo sits behind the text, as on the computer, so the hero is one screen. */
@media (max-width: 700px) {
  .hero-stage { display: block; }
  .hero-content {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 12px;
    min-height: 100vh;
    min-height: 100svh;
    padding-block: calc(var(--header-h) + 8px) 28px;
  }
  .hero-intro { padding: 0; }
  .hero-title { margin-block: 10px 14px; }
  .hero-poster { position: absolute; inset: 0; height: 100%; aspect-ratio: auto; }
  .hero-stage::after {
    content: "";
    background: linear-gradient(180deg, rgba(0, 0, 0, .9) 0%, rgba(0, 0, 0, .6) 48%, rgba(0, 0, 0, .35) 66%, rgba(0, 0, 0, .88) 100%);
  }
  .hero-lead { margin-bottom: 18px; font-size: .9rem; line-height: 1.5; }
  .hero-stat { align-self: flex-end; width: auto; margin: 0; }
  .hero-stat strong { font-size: 2.8rem; }
}

/* Closing scene: the three messages and the call to action beside the film. */
.outro-content {
  display: grid;
  grid-template-areas: "one film" "two film" "three film" "cta film";
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  align-content: center;
  column-gap: clamp(28px, 4vw, 64px);
  padding-block: calc(var(--header-h) + 28px) clamp(56px, 9vh, 100px);
}
.outro-message { margin: 0 0 6px; font-size: clamp(1.8rem, 3.4vw, 3.2rem); }
.outro-message.one { grid-area: one; }
.outro-message.two { grid-area: two; }
.outro-message.three { grid-area: three; }
.outro-film { grid-area: film; align-self: center; width: 100%; margin-top: 0; }
.final-cta { grid-area: cta; align-self: start; width: auto; margin-top: 24px; }

@media (max-width: 900px) {
  .chapter-heading { grid-template-columns: minmax(0, 1fr); }
  .system-grid {
    grid-template-areas: "film film" "s1 s3" "s2 s4";
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 18px 24px;
  }
  .system-visual { margin-inline: calc(-1 * var(--page-pad)); overflow: hidden; }
  .system-film { width: 112%; margin-inline: -6%; }
  .steps .step { align-self: start; }
  .outro-content { grid-template-areas: "one" "two" "three" "film" "cta"; grid-template-columns: minmax(0, 1fr); }
  .outro-film { margin-top: 20px; }
}
@media (max-width: 700px) {
  .system-grid { grid-template-areas: "film" "s1" "s2" "s3" "s4"; grid-template-columns: minmax(0, 1fr); gap: 14px; }
  .system-film { width: 124%; margin-inline: -12%; }
  .final-cta { width: 100%; }
}


/* Hero photo (owner, 21. 10. 2026): the ring pulses on the PIR sensor on top of the module;
   on phones the portrait photo shows the module at the bottom, under the text. */
.detection-ring { top: 39%; left: 67%; }
@media (max-width: 700px) {
  .hero-poster img { object-position: center bottom; }
}