/* ============================================
   Orbit Landing — Dark theme
   Palette: #0C0C0E / #F2F2F7 / #0A84FF / #30D158
   ============================================ */

/* ---------- Self-hosted fonts (was: Google Fonts) ---------- */
@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(fonts/dm-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: 'DM Sans';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(fonts/dm-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: 'DM Sans';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(fonts/dm-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: 'DM Sans';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(fonts/dm-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: 'DM Sans';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(fonts/dm-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: 'DM Sans';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(fonts/dm-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: 'Outfit';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(fonts/outfit-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: 'Outfit';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(fonts/outfit-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: 'Outfit';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(fonts/outfit-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: 'Outfit';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(fonts/outfit-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: 'Outfit';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(fonts/outfit-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: 'Outfit';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(fonts/outfit-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;
}

:root {
  --bg: #0C0C0E;
  --bg-elevated: #131316;
  --surface: #1C1C1E;
  --surface-2: #28282B;
  --text: #F2F2F7;
  --text-2: #AEAEB6;
  --text-3: #80808A;
  --accent: #0A84FF;
  --accent-hover: #0066d6;
  --accent-soft: rgba(10, 132, 255, 0.14);
  --accent-glow: rgba(10, 132, 255, 0.28);
  --green: #30D158;
  --red: #FF453A;
  --border: rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.12);
  --radius: 16px;
  --radius-lg: 24px;
  --font-display: 'Outfit', sans-serif;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: ui-monospace, 'Cascadia Mono', 'SFMono-Regular', Consolas, monospace;
  --nav-h: 72px;
  --max: 1120px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  /* ---- Semantic surfaces ----
     The dark palette used to be hardcoded at ~50 call sites, which is why the
     page could not be themed. Everything below is overridden wholesale in
     [data-theme="light"] further down; nothing else in this file hardcodes a
     surface colour. */
  --card-bg: rgba(28, 28, 30, 0.55);          /* feature / faq / download cards */
  --card-bg-hover: rgba(28, 28, 30, 0.82);
  --card-bg-soft: rgba(28, 28, 30, 0.35);     /* trust strip, need-callout */
  --card-bg-mid: rgba(28, 28, 30, 0.45);      /* spec panel, walkthrough steps */
  --card-bg-strong: rgba(28, 28, 30, 0.65);

  --glass: rgba(12, 12, 14, 0.62);            /* navbar */
  --glass-strong: rgba(12, 12, 14, 0.88);     /* scrolled navbar, open menu */
  --glass-solid: rgba(28, 28, 30, 0.95);      /* floating controls over media */
  --scrim: rgba(8, 8, 10, 0.78);              /* lightbox backdrop */

  --overlay-softer: rgba(255, 255, 255, 0.04); /* eyebrows, pills, tab strip */
  --overlay-soft: rgba(255, 255, 255, 0.05);
  --overlay-strong: rgba(255, 255, 255, 0.1);
  --overlay-stronger: rgba(255, 255, 255, 0.12);
  --grid-line: rgba(255, 255, 255, 0.028);     /* hero grid */

  --shadow-sm: 0 24px 64px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 40px 100px rgba(0, 0, 0, 0.55);

  --link-hover: #60b0ff;
  --heading-grad: linear-gradient(135deg, #F2F2F7 10%, #0A84FF 100%);
  --accent-border: rgba(10, 132, 255, 0.28);
  --accent-border-strong: rgba(10, 132, 255, 0.35);
  --banner-bg: linear-gradient(90deg, rgba(10, 132, 255, 0.16) 0%, rgba(10, 132, 255, 0.06) 45%, rgba(48, 209, 88, 0.10) 100%);

  /* Device / window chrome around the app screenshots. Deliberately NOT
     themed: the screenshots inside are dark-mode captures, so a dark bezel is
     correct in both themes (same call Apple makes on its own site). */
  --frame-bg: #101013;
  --frame-bg-alt: #161618;
  --accent-rgb: 10, 132, 255;
  --green-rgb: 48, 209, 88;
  --shadow-rgb: 0, 0, 0;
}

/* ---------- Light theme ----------
   Applied by setting data-theme on <html>. The inline script in index.html
   resolves "system" to light/dark before first paint, so this block is the
   only place the light palette lives. */
[data-theme="light"] {
  color-scheme: light;

  --bg: #F6F6F8;
  --bg-elevated: #FFFFFF;
  --surface: #FFFFFF;
  --surface-2: #EFEFF2;
  --text: #0E0E12;
  --text-2: #55555F;
  --text-3: #83838E;
  --accent: #0A7AE8;
  --accent-hover: #005CC4;
  --accent-soft: rgba(10, 122, 232, 0.10);
  --accent-glow: rgba(10, 122, 232, 0.20);
  --green: #17913D;
  --red: #D70015;
  --border: rgba(0, 0, 0, 0.10);
  --border-strong: rgba(0, 0, 0, 0.17);

  --card-bg: rgba(255, 255, 255, 0.92);
  --card-bg-hover: #FFFFFF;
  --card-bg-soft: rgba(255, 255, 255, 0.72);
  --card-bg-mid: rgba(255, 255, 255, 0.82);
  --card-bg-strong: #FFFFFF;

  --glass: rgba(246, 246, 248, 0.72);
  --glass-strong: rgba(246, 246, 248, 0.94);
  --glass-solid: rgba(255, 255, 255, 0.96);
  --scrim: rgba(20, 20, 24, 0.62);

  --overlay-softer: rgba(0, 0, 0, 0.04);
  --overlay-soft: rgba(0, 0, 0, 0.05);
  --overlay-strong: rgba(0, 0, 0, 0.08);
  --overlay-stronger: rgba(0, 0, 0, 0.11);
  --grid-line: rgba(0, 0, 0, 0.035);

  --shadow-sm: 0 20px 50px rgba(15, 23, 42, 0.10);
  --shadow-md: 0 8px 22px rgba(15, 23, 42, 0.12);
  --shadow-xl: 0 36px 80px rgba(15, 23, 42, 0.18);

  --link-hover: #005CC4;
  --heading-grad: linear-gradient(135deg, #0E0E12 10%, #0A7AE8 100%);
  --accent-border: rgba(10, 122, 232, 0.32);
  --accent-border-strong: rgba(10, 122, 232, 0.45);
  --banner-bg: linear-gradient(90deg, rgba(10, 122, 232, 0.10) 0%, rgba(10, 122, 232, 0.04) 45%, rgba(23, 145, 61, 0.08) 100%);
  --accent-rgb: 10, 122, 232;
  --green-rgb: 23, 145, 61;
  --shadow-rgb: 15, 23, 42;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}
html.has-banner {
  scroll-padding-top: calc(var(--banner-h, 40px) + var(--nav-h) + 16px);
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* clip, not hidden: overflow-x:hidden forces overflow-y to compute to
     auto, which makes <body> a scroll container. That hijacks
     animation-timeline: view() (and position: sticky) for everything
     inside it, leaving elements frozen at their starting keyframe.
     clip blocks horizontal overflow without creating a scroll container. */
  overflow-x: clip;
}

::selection {
  background: rgba(var(--accent-rgb), 0.4);
  color: var(--text);
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: var(--text-3);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: var(--text-2); }

img, svg { display: block; max-width: 100%; }
button { font-family: inherit; }

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover { color: var(--link-hover); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 2000;
  background: var(--accent);
  color: #fff;
  padding: 8px 14px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.875rem;
}
.skip-link:focus { top: 16px; color: #fff; }

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

/* ---------- Motion ---------- */
/* ==================================================================
   MOTION SYSTEM
   ------------------------------------------------------------------
   Previously every one of the 35 revealed elements ran the same
   fade + 24px rise, and the stagger stopped at the sixth child — so
   the 12-card features grid visibly lost its rhythm halfway through.

   Variety is now derived from ELEMENT TYPE in CSS rather than from
   new markup, so the existing HTML needs no per-element classes:
   section headers come in from the side, cards scale up as they
   arrive, everything else rises.
   ================================================================== */

.fade-up {
  opacity: 0;
  transform: translateY(26px);
  transition:
    opacity 0.72s var(--ease),
    transform 0.72s var(--ease),
    filter 0.72s var(--ease);
  will-change: opacity, transform;
}

.fade-up.visible {
  opacity: 1;
  transform: none;
}

/* Section headers lead, arriving from the side rather than rising —
   gives each section an entrance beat instead of a uniform lift. */
.section-header.fade-up {
  transform: translateX(-30px);
  transition-duration: 0.8s;
}

/* Cards arrive by settling into place: a small scale with the rise.
   Reads as "landing" and separates them from text blocks. */
.feature-card.fade-up,
.step-card.fade-up,
.faq-item.fade-up {
  transform: translateY(22px) scale(0.975);
  transition-duration: 0.66s;
}

/* Any imagery that reveals gets a slight blur burn-off, which hides
   the flatness of a pure opacity fade on photographic content. */
.fade-up.visible { filter: none; }
.fade-up:not(.visible) { filter: blur(2px); }

/* ------------------------------------------------------------------
   Stagger — now unlimited.
   `--stagger-i` is set per child by the reveal script, so a group of
   any length cascades evenly. The nth-child rules below stay as a
   no-JS fallback and are overridden when the variable is present.
   ------------------------------------------------------------------ */
.fade-up-stagger > .fade-up {
  transition-delay: calc(var(--stagger-i, 0) * 58ms);
}

.fade-up-stagger > .fade-up:nth-child(1) { --stagger-i: 0; }
.fade-up-stagger > .fade-up:nth-child(2) { --stagger-i: 1; }
.fade-up-stagger > .fade-up:nth-child(3) { --stagger-i: 2; }
.fade-up-stagger > .fade-up:nth-child(4) { --stagger-i: 3; }
.fade-up-stagger > .fade-up:nth-child(5) { --stagger-i: 4; }
.fade-up-stagger > .fade-up:nth-child(6) { --stagger-i: 5; }
.fade-up-stagger > .fade-up:nth-child(7) { --stagger-i: 6; }
.fade-up-stagger > .fade-up:nth-child(8) { --stagger-i: 7; }
.fade-up-stagger > .fade-up:nth-child(9) { --stagger-i: 8; }
.fade-up-stagger > .fade-up:nth-child(10) { --stagger-i: 9; }
.fade-up-stagger > .fade-up:nth-child(11) { --stagger-i: 10; }
.fade-up-stagger > .fade-up:nth-child(12) { --stagger-i: 11; }
.fade-up-stagger > .fade-up:nth-child(n+13) { --stagger-i: 12; }

/* ------------------------------------------------------------------
   Scroll-linked depth.
   `--scroll-y` is set on :root by the reveal script. Section backdrop
   art drifts against the scroll so the page has parallax instead of
   moving as one flat sheet.
   ------------------------------------------------------------------ */
.section-bg {
  transform: translate3d(0, calc(var(--scroll-y, 0px) * var(--parallax, -0.06)), 0);
  will-change: transform;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .fade-up,
  .section-header.fade-up,
  .feature-card.fade-up,
  .step-card.fade-up,
  .faq-item.fade-up {
    opacity: 1;
    transform: none;
    filter: none;
    transition: none;
    transition-delay: 0s;
  }

  .section-bg { transform: none; }
  .orb { animation: none !important; }
  .back-to-top { transition: none; }
  .mobile-slides { transition: none; }
  .announcement-bar { animation: none; }
}


/* ==================================================================
   HERO CHOREOGRAPHY
   ------------------------------------------------------------------
   The hero is above the fold, so it must not wait for a scroll — it
   plays on load. Each piece arrives on its own beat, and the two
   headline lines come in from opposite sides.
   ================================================================== */

.hero-line {
  display: inline-block;
  opacity: 0;
}

.hero-line-l { --hero-from: -58px; }
.hero-line-r { --hero-from: 58px; }

@keyframes heroLineIn {
  from { opacity: 0; transform: translateX(var(--hero-from, 0)); }
  to   { opacity: 1; transform: translateX(0); }
}

/* The rest of the hero copy rises, so the headline is the only thing
   moving sideways and the eye follows it. */
@keyframes heroRiseIn {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: no-preference) {
  .hero-copy { opacity: 1; transform: none; }   /* the container does not animate */

  .hero-line {
    animation: heroLineIn 0.9s var(--ease) both;
  }
  .hero-line-l { animation-delay: 0.12s; }
  .hero-line-r { animation-delay: 0.26s; }

  .hero-copy > .eyebrow,
  .hero-copy > p,
  .hero-copy > .hero-cta-row,
  .hero-copy > .os-badges {
    animation: heroRiseIn 0.8s var(--ease) both;
  }
  .hero-copy > .eyebrow        { animation-delay: 0.04s; }
  .hero-copy > p               { animation-delay: 0.42s; }
  .hero-copy > .hero-cta-row   { animation-delay: 0.56s; }
  .hero-copy > .os-badges      { animation-delay: 0.68s; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-line,
  .hero-copy > .eyebrow,
  .hero-copy > p,
  .hero-copy > .hero-cta-row,
  .hero-copy > .os-badges {
    opacity: 1;
    animation: none;
    transform: none;
  }
}

/* ==================================================================
   SCROLL-DRIVEN ANIMATION
   ------------------------------------------------------------------
   The difference that matters: the old reveals were TRIGGERED by scroll
   (fire once, play for 0.7s, done). These are DRIVEN by it — the
   animation's progress IS the scroll position, so they run forward and
   backward at exactly the speed you scroll, and they run on the
   compositor instead of in a JS handler.

   Progressive enhancement: browsers without animation-timeline keep the
   existing transition + IntersectionObserver path untouched, so nothing
   regresses and content is never hidden.
   ================================================================== */

@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {

    @keyframes sdRevealUp {
      from { opacity: 0; transform: translateY(30px); filter: blur(2px); }
      to   { opacity: 1; transform: translateY(0);    filter: blur(0); }
    }
    @keyframes sdRevealLeft {
      from { opacity: 0; transform: translateX(-34px); }
      to   { opacity: 1; transform: translateX(0); }
    }
    @keyframes sdCardIn {
      from { opacity: 0; transform: translateY(26px) scale(0.97); }
      to   { opacity: 1; transform: translateY(0)    scale(1); }
    }

    /* Hand these elements over to the scroll timeline entirely — the
       transition path must be switched off or the two fight. */
    .fade-up {
      transition: none;
      opacity: 1;                 /* the animation owns opacity now */
      transform: none;
      animation: sdRevealUp linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 85%;
    }

    .section-header.fade-up {
      animation-name: sdRevealLeft;
      animation-range: entry 0% entry 88%;
    }

    .feature-card.fade-up,
    .step-card.fade-up,
    .faq-item.fade-up {
      animation-name: sdCardIn;
      animation-range: entry 0% entry 82%;
    }

    /* Stagger along the timeline rather than in seconds: each child
       starts slightly earlier, so a grid ripples regardless of length. */
    .fade-up-stagger > .fade-up { animation-delay: calc(var(--stagger-i, 0) * -1.6%); }

    /* Section backdrop art drifts as the section crosses the viewport.
       Complements the JS parallax and takes over where supported. */
    .section-bg {
      animation: sdParallax linear both;
      animation-timeline: view();
      animation-range: cover 0% cover 100%;
      transform: none;
    }
    @keyframes sdParallax {
      from { transform: translateY(-4%); }
      to   { transform: translateY(4%); }
    }
  }
}


/* ==================================================================
   READING PROGRESS + TOP BAR MOTION
   ================================================================== */

@keyframes growWidth {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

.progress-bar {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  height: 2px;
  z-index: 1005;
  pointer-events: none;
  transform-origin: 0 50%;
  transform: scaleX(0);           /* default for browsers without a scroll timeline */
  background: linear-gradient(90deg, var(--accent-primary, #3b82f6), var(--accent-secondary, #8b5cf6));
}

@supports (animation-timeline: scroll()) {
  @media (prefers-reduced-motion: no-preference) {
    .progress-bar {
      animation: growWidth linear both;
      animation-timeline: scroll(root block);
    }
  }
}

/* The navbar now reacts to scroll direction: it steps aside when you
   read downward and comes straight back when you scroll up, so the top
   of the page is never permanently occupied. */
.navbar {
  transition:
    transform 0.36s var(--ease),
    background 0.3s var(--ease),
    box-shadow 0.3s var(--ease),
    border-color 0.3s var(--ease);
}

.navbar.is-hidden {
  /* Must clear the sticky announcement bar as well as its own height.
     translateY(-100%) alone moved the nav from 42..114 to -30..42 — landing exactly
     behind the banner, so the two rendered on top of each other. Adding the banner
     height (plus a small margin) takes it fully off-screen instead. */
  transform: translateY(calc(-100% - var(--banner-h, 0px) - 4px));
}

.navbar.is-scrolled {
  background: color-mix(in srgb, var(--glass) 88%, transparent);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.22);
}

/* Nav links get a sweep underline instead of a colour flip. */
.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  bottom: -5px;
  height: 1.5px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent-primary, #3b82f6), var(--accent-secondary, #8b5cf6));
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.32s var(--ease);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}

/* The announcement bar drops in rather than simply appearing. */
@keyframes bannerDrop {
  from { opacity: 0; transform: translateY(-100%); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: no-preference) {
  .announcement-bar {
    animation: bannerDrop 0.5s var(--ease) both;
  }
}

/* ==================================================================
   CARD + BUTTON MICRO-INTERACTIONS
   Guarded behind (hover: hover) so touch devices never get a stuck
   hover state after a tap.
   ================================================================== */

@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .feature-card,
  .step-card,
  .faq-item {
    transition:
      transform 0.3s var(--ease),
      border-color 0.3s var(--ease),
      box-shadow 0.3s var(--ease);
  }

  .feature-card:hover,
  .step-card:hover,
  .faq-item:hover {
    transform: translateY(-4px);
    border-color: var(--accent-border-strong, var(--border-strong));
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.26);
  }

  /* Icon lifts a touch more than the card, so the card reads as a
     surface and the icon as something resting on it. */
  .feature-card:hover .feature-icon {
    transform: translateY(-2px) scale(1.06);
  }
  .feature-icon {
    transition: transform 0.3s var(--ease);
  }

  /* Sheen across the primary CTA. */
  .btn-primary {
    position: relative;
    overflow: hidden;
  }
  .btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(105deg, transparent 32%, rgba(255, 255, 255, 0.3) 50%, transparent 68%);
    transform: translateX(-130%);
  }
  .btn-primary:hover::after {
    transform: translateX(130%);
    transition: transform 0.75s var(--ease);
  }

  .os-badge {
    transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
  }
  .os-badge:hover {
    transform: translateY(-2px);
    border-color: var(--accent-border, var(--border-strong));
  }
}

/* ==================================================================
   PER-SECTION SCROLL PROGRESS
   A hairline under each section that fills as that section passes.
   Elements are injected by the page script.
   ================================================================== */

/* NOTE: per-section progress hairlines were removed here.
   They were injected as each section's first child, so they rendered above the heading
   looking like a stray rule, and the bar was wider than the text beneath it. The reading
   progress bar at the top of the page already covers scroll feedback. */

/* Back-to-top gains a proper entrance instead of popping in. */
.back-to-top {
  transition:
    opacity 0.3s var(--ease),
    transform 0.3s var(--ease),
    background 0.25s var(--ease);
}
.back-to-top:not(.visible):not(.show) {
  opacity: 0;
  transform: translateY(12px) scale(0.94);
  pointer-events: none;
}
.back-to-top.visible,
.back-to-top.show {
  opacity: 1;
  transform: none;
}

/* ==================================================================
   Reduced motion: switch all of the above off.
   ================================================================== */

@media (prefers-reduced-motion: reduce) {
  .progress-bar { transform: scaleX(1); animation: none; }
  .navbar,
  .navbar.is-hidden { transform: none; transition: none; }
  .nav-link::after,
  .btn-primary::after { display: none; }
  .feature-card:hover,
  .step-card:hover,
  .faq-item:hover,
  .os-badge:hover { transform: none; }
  .back-to-top { opacity: 1; transform: none; }
  .announcement-bar { animation: none; }
}


/* ==================================================================
   ELEMENT-LEVEL MOTION
   ------------------------------------------------------------------
   The audit found these still completely static: spec-row, walkthrough-
   step/num, faq-item, section-kicker, phone-frame, preview-panel,
   mobile-slide, theme-card, platform-icon.

   Everything below animates elements that are ALREADY there — no new
   visual parts, no decorative rules. Only opacity and transform, so
   nothing can read as a stray artefact.
   ================================================================== */

/* ---- Section kickers ---- */
@keyframes kickerIn {
  from { opacity: 0; transform: translateY(8px); letter-spacing: 0.22em; }
  to   { opacity: 1; transform: translateY(0);   letter-spacing: 0.14em; }
}

/* ---- Spec rows: label in from the left, value from the right ----
   The row is a 2-column grid, so each half can travel toward the other
   and meet. Reads as the row assembling itself rather than fading in. */
@keyframes specFromLeft {
  from { opacity: 0; transform: translateX(-20px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes specFromRight {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ---- Walkthrough steps ---- */
@keyframes stepNumPop {
  0%   { opacity: 0; transform: scale(0.6); }
  60%  { opacity: 1; transform: scale(1.08); }
  100% { opacity: 1; transform: scale(1); }
}
@keyframes stepCardIn {
  from { opacity: 0; transform: translateY(26px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---- FAQ items ---- */
@keyframes faqIn {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---- Device frames breathe, at slightly different rates ----
   Two durations a little apart read as depth: the eye cannot tell the
   difference consciously, but the pair stops looking like one flat
   image. */
@keyframes deviceFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-9px); }
}

@keyframes panelIn {
  from { opacity: 0; transform: translateY(18px) scale(0.985); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

@media (prefers-reduced-motion: no-preference) {

  /* Kickers */
  .section-kicker { animation: kickerIn 0.7s var(--ease) both; }

  /* Walkthrough */
  .walkthrough-step {
    animation: stepCardIn 0.7s var(--ease) both;
    animation-delay: calc(var(--step-i, 0) * 0.1s);
  }
  .walkthrough-num { animation: stepNumPop 0.6s var(--ease) both; }
  .walkthrough-step:nth-child(1) { --step-i: 0; }
  .walkthrough-step:nth-child(2) { --step-i: 1; }
  .walkthrough-step:nth-child(3) { --step-i: 2; }
  .walkthrough-num { animation-delay: 0.12s; }

  /* FAQ — a short cascade so a long list still feels responsive */
  .faq-item {
    animation: faqIn 0.55s var(--ease) both;
    animation-delay: calc(var(--faq-i, 0) * 0.07s);
  }
  .faq-item:nth-child(1) { --faq-i: 0; }
  .faq-item:nth-child(2) { --faq-i: 1; }
  .faq-item:nth-child(3) { --faq-i: 2; }
  .faq-item:nth-child(4) { --faq-i: 3; }
  .faq-item:nth-child(5) { --faq-i: 4; }
  .faq-item:nth-child(6) { --faq-i: 5; }
  .faq-item:nth-child(n+7) { --faq-i: 6; }

  /* Device frames */
  .phone-frame {
    animation: deviceFloat 7s ease-in-out infinite;
    will-change: transform;
  }
  .mobile-slide .phone-frame { animation-duration: 8.6s; }
  .mobile-slide:nth-child(odd) .phone-frame { animation-duration: 9.4s; }

  /* Preview panel */
  .preview-panel { animation: panelIn 0.6s var(--ease) both; }
}

/* ---- Scroll-driven half: spec rows, where supported ---- */
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {

    .spec-row > :first-child {
      animation: specFromLeft linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 85%;
    }
    .spec-row > :last-child {
      animation: specFromRight linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 85%;
    }

    /* Each kicker rides in with its own section rather than on a timer. */
    .section-kicker {
      animation: kickerIn linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 90%;
    }

    .walkthrough-step {
      animation: stepCardIn linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 85%;
    }
    .walkthrough-num {
      animation: stepNumPop linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 82%;
    }

    .faq-item {
      animation: faqIn linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 80%;
    }
  }
}

/* ---- Platform icons react on hover ---- */
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .platform-icon {
    transition: transform 0.3s var(--ease);
  }
  .download-card:hover .platform-icon {
    transform: translateY(-3px) scale(1.08);
  }
}

/* ---- Reduced motion: switch all of the above off ---- */
@media (prefers-reduced-motion: reduce) {
  .section-kicker,
  .walkthrough-step,
  .walkthrough-num,
  .faq-item,
  .preview-panel,
  .spec-row > :first-child,
  .spec-row > :last-child {
    opacity: 1;
    animation: none;
    transform: none;
    letter-spacing: 0.14em;
  }
  .phone-frame { animation: none; }
  .download-card:hover .platform-icon { transform: none; }
}


/* ==================================================================
   DESKTOP PREVIEW
   ------------------------------------------------------------------
   The large screenshot swapped instantly when a thumbnail was clicked —
   a hard cut from one 1440x900 image to another. It now eases in, which
   mirrors how the mobile carousel slides.
   ================================================================== */

@keyframes shotSwap {
  from { opacity: 0; transform: scale(0.985); }
  to   { opacity: 1; transform: scale(1); }
}

@media (prefers-reduced-motion: no-preference) {
  .preview-stage.swapping #desktopShot {
    animation: shotSwap 0.45s var(--ease) both;
  }
}

/* The stage lifts slightly under the pointer, so the preview reads as an
   object on the page rather than a flat picture of one. */
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .preview-stage {
    transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
  }
  .preview-stage:hover {
    transform: translateY(-4px);
    border-color: var(--accent-border, var(--border-strong));
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
  }
}

@media (prefers-reduced-motion: reduce) {
  .preview-stage.swapping #desktopShot { animation: none; }
  .preview-stage:hover { transform: none; }
}


/* ==================================================================
   NAVBAR ENTRANCE
   ------------------------------------------------------------------
   The bar simply existed on load. Animating the navbar itself would fight the
   hide-on-scroll transform, so the motion goes on its inner container and the
   links inside it.
   ================================================================== */

@keyframes navBarIn {
  from { opacity: 0; transform: translateY(-14px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes navItemIn {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: no-preference) {
  .navbar > .container {
    animation: navBarIn 0.55s var(--ease) both;
  }

  /* Each link arrives on its own beat, so the bar assembles left to right. */
  .navbar .nav-link,
  .navbar .nav-actions > * {
    animation: navItemIn 0.5s var(--ease) both;
  }
  .navbar .nav-link:nth-child(1) { animation-delay: 0.10s; }
  .navbar .nav-link:nth-child(2) { animation-delay: 0.16s; }
  .navbar .nav-link:nth-child(3) { animation-delay: 0.22s; }
  .navbar .nav-link:nth-child(4) { animation-delay: 0.28s; }
  .navbar .nav-link:nth-child(5) { animation-delay: 0.34s; }
  .navbar .nav-link:nth-child(6) { animation-delay: 0.40s; }
  .navbar .nav-actions > *:nth-child(1) { animation-delay: 0.46s; }
  .navbar .nav-actions > *:nth-child(2) { animation-delay: 0.52s; }
  .navbar .nav-actions > *:nth-child(3) { animation-delay: 0.58s; }

  .navbar-logo {
    animation: navBarIn 0.6s var(--ease) both;
  }
}

@media (prefers-reduced-motion: reduce) {
  .navbar > .container,
  .navbar .nav-link,
  .navbar .nav-actions > *,
  .navbar-logo {
    opacity: 1;
    animation: none;
    transform: none;
  }
}

/* ---------- Announcement bar ---------- */
.announcement-bar {
  position: sticky;
  top: 0;
  z-index: 1001;
  font-size: 0.8125rem;
  color: var(--text-2);
  /* The tint is a translucent gradient, so on its own the bar is see-through —
     and the navbar, which slides up behind it when hiding, showed straight
     through during the transition. A solid page background underneath makes the
     bar opaque while keeping the tint. */
  background-color: var(--bg);
  background-image: var(--banner-bg);
  border-bottom: 1px solid var(--border-strong);
  animation: announcementFadeIn 0.3s var(--ease);
}
body.has-banner .navbar {
  top: var(--banner-h, 40px);
}
.announcement-bar-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 40px;
  padding: 10px 48px;
  text-align: center;
}
.announcement-text {
  font-weight: 500;
}
.announcement-link {
  color: var(--accent);
  font-weight: 600;
  white-space: nowrap;
  transition: color 0.2s ease;
}
.announcement-link:hover { color: var(--link-hover); }
.announcement-close {
  position: absolute;
  top: 50%;
  right: 12px;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 6px;
  background: var(--overlay-soft);
  color: var(--text-2);
  font-size: 0.75rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, color 0.2s ease;
}
.announcement-close:hover {
  background: var(--overlay-stronger);
  color: var(--text);
}

@keyframes announcementFadeIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
}

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: var(--glass);
  backdrop-filter: blur(22px) saturate(1.4);
  -webkit-backdrop-filter: blur(22px) saturate(1.4);
  border-bottom: 1px solid transparent;
  transition: background 0.25s ease, border-color 0.25s ease;
}
.navbar.scrolled {
  background: var(--glass-strong);
  border-bottom-color: var(--border);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text);
  letter-spacing: -0.3px;
  flex-shrink: 0;
}
.navbar-logo:hover { color: var(--text); }

.nav-logo-img {
  width: 28px;
  height: 28px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-links a.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-2);
  padding: 8px 12px;
  border-radius: 8px;
  transition: color 0.2s ease, background 0.2s ease;
}
.nav-links a.nav-link:hover,
.nav-links a.nav-link.active {
  color: var(--text);
  background: var(--overlay-soft);
}

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

.nav-github {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--overlay-soft);
  border: 1px solid var(--border);
  color: var(--text-2);
  transition: background 0.2s ease, color 0.2s ease;
}
.nav-github:hover {
  background: var(--overlay-strong);
  color: var(--text);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  height: 38px;
  padding: 0 16px;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  transition: background 0.2s ease, transform 0.2s ease;
}
.nav-cta:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
}

/* ---------- Theme switch ---------- */
.theme-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border-radius: 11px;
  background: var(--overlay-softer);
  border: 1px solid var(--border);
}
.theme-switch button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  padding: 0;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-3);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}
.theme-switch button:hover {
  background: var(--overlay-soft);
  color: var(--text);
}
.theme-switch button[aria-pressed="true"] {
  background: var(--accent);
  color: #fff;
}
.theme-switch button svg { width: 16px; height: 16px; }

/* Cross-fade every surface while the theme flips, then drop the class so the
   transitions do not linger and cost paint work on scroll/hover. */
html.theme-transition,
html.theme-transition *,
html.theme-transition *::before,
html.theme-transition *::after {
  transition: background-color 0.28s ease, border-color 0.28s ease, color 0.28s ease !important;
}
@media (prefers-reduced-motion: reduce) {
  html.theme-transition,
  html.theme-transition *,
  html.theme-transition *::before,
  html.theme-transition *::after {
    transition: none !important;
  }
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s var(--ease);
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: 12px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  color: #fff;
}
.btn-secondary {
  background: var(--overlay-soft);
  color: var(--text);
  border: 1px solid var(--border-strong);
}
.btn-secondary:hover {
  background: var(--overlay-strong);
  transform: translateY(-2px);
  color: var(--text);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--nav-h) + 72px) 0 40px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 70% 50% at 50% -10%, rgba(var(--accent-rgb), 0.18) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 85% 30%, rgba(var(--green-rgb), 0.05) 0%, transparent 55%),
    linear-gradient(180deg, transparent 70%, var(--bg) 100%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, #000 20%, transparent 75%);
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(48px);
  pointer-events: none;
  opacity: 0.22;
}
.orb-1 {
  width: 420px;
  height: 420px;
  background: rgba(var(--accent-rgb), 0.22);
  top: -80px;
  left: 10%;
  animation: orbFloat1 14s ease-in-out infinite alternate;
}
.orb-2 {
  width: 320px;
  height: 320px;
  background: rgba(var(--green-rgb), 0.08);
  top: 180px;
  right: -40px;
  animation: orbFloat2 16s ease-in-out infinite alternate;
}

@keyframes orbFloat1 {
  from { transform: translate(0, 0); }
  to { transform: translate(40px, 30px); }
}
@keyframes orbFloat2 {
  from { transform: translate(0, 0); }
  to { transform: translate(-30px, 20px); }
}

.hero-copy {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px 5px 6px;
  border-radius: 999px;
  background: var(--overlay-softer);
  border: 1px solid var(--border);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-2);
  margin-bottom: 22px;
}
.eyebrow-dot {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.hero-copy h1 {
  font-family: var(--font-display);
  font-weight: 750;
  font-size: clamp(2.5rem, 6vw, 4.15rem);
  line-height: 1.08;
  letter-spacing: -1.4px;
  margin-bottom: 18px;
}
.hero-copy h1 .grad {
  background: var(--heading-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-copy p {
  font-size: 1.12rem;
  color: var(--text-2);
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 22px;
}

.os-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.os-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 11px;
  border-radius: 999px;
  background: var(--overlay-softer);
  border: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-2);
  font-weight: 500;
}

/* Hero product frame */
.hero-visual {
  position: relative;
  z-index: 1;
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 8px;
}

.window {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  background: var(--frame-bg);
  border: 1px solid var(--border-strong);
  box-shadow:
    var(--shadow-xl);
}

.window-bar {
  display: flex;
  align-items: center;
  height: 38px;
  padding: 0 14px;
  background: var(--frame-bg);
  border-bottom: 1px solid var(--border);
  gap: 8px;
}
.window-dots {
  display: flex;
  gap: 6px;
}
.window-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.window-dots .r { background: #FF5F57; }
.window-dots .y { background: #FEBC2E; }
.window-dots .g { background: #28C840; }
.window-title {
  flex: 1;
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-3);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.window-shot {
  width: 100%;
  height: auto;
  display: block;
}

.phone-float {
  position: absolute;
  right: 2%;
  bottom: -24px;
  width: min(210px, 26vw);
  z-index: 2;
  filter: drop-shadow(0 24px 40px rgba(0, 0, 0, 0.55));
}
.phone-frame {
  border-radius: 28px;
  padding: 7px;
  background: var(--frame-bg-alt);
  border: 1px solid var(--border-strong);
}
.phone-frame img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 21px;
}

.hero-phone-mobile {
  display: none;
  max-width: 220px;
  margin: 0 auto;
  filter: drop-shadow(0 24px 40px rgba(0, 0, 0, 0.55));
}

/* ---------- Trust strip ---------- */
.trust {
  position: relative;
  overflow: hidden;
  padding: 28px 0 8px;
}
.trust > .container {
  position: relative;
  z-index: 1;
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.trust-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--card-bg-soft);
}
.trust-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.trust-item strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 2px;
}
.trust-item span {
  font-size: 0.78rem;
  color: var(--text-3);
  line-height: 1.45;
}

/* ---------- Sections ---------- */
.section {
  padding: 104px 0;
}

.section-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.045;
  z-index: 0;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 30%, transparent 75%);
  mask-image: radial-gradient(ellipse 90% 80% at 50% 40%, #000 30%, transparent 75%);
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-kicker {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.section-header h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 3.4vw, 2.7rem);
  letter-spacing: -0.6px;
  margin-bottom: 12px;
}
.section-header p {
  font-size: 1.05rem;
  color: var(--text-2);
  max-width: 540px;
  margin: 0 auto;
}

/* ---------- Preview gallery ---------- */
.preview-section {
  padding: 80px 0 104px;
}

.preview-tabs {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-bottom: 28px;
  padding: 5px;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
  background: var(--overlay-softer);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.preview-tab {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--text-2);
  font-size: 0.88rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease;
}
.preview-tab:hover { color: var(--text); }
.preview-tab.active {
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 1px 0 var(--overlay-softer);
}

.preview-panel { display: none; }

/* display:none -> block is not a transitionable change, so the swap used to be
   instant. An animation on .active replays each time the element is displayed,
   which gives a real transition without needing allow-discrete. */
.preview-panel.active {
  display: block;
  animation: panelIn 0.42s var(--ease) both;
}

/* Thumbnails: the active one lifts and the rest recede, so switching reads as a
   change of selection rather than a swap. */
.preview-thumb {
  transition:
    opacity 0.3s var(--ease),
    transform 0.3s var(--ease),
    border-color 0.3s var(--ease);
}
.preview-thumb:not(.active) { opacity: 0.55; }
.preview-thumb:hover { opacity: 1; transform: translateY(-2px); }
.preview-thumb.active { opacity: 1; transform: translateY(-2px); }

/* Tab buttons get the same sweep underline as the nav. */
.preview-tab { position: relative; }
.preview-tab::after {
  content: '';
  position: absolute;
  left: 12px; right: 12px;
  bottom: 4px;
  height: 1.5px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent-primary, #3b82f6), var(--accent-secondary, #8b5cf6));
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.32s var(--ease);
}
.preview-tab.active::after,
.preview-tab:hover::after { transform: scaleX(1); }

.preview-stage {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  box-shadow: var(--shadow-sm);
}
.preview-stage img {
  width: 100%;
  height: auto;
  display: block;
}

.preview-thumbs {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 16px;
  flex-wrap: wrap;
}
.preview-thumb {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  font-size: 0.8rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}
.preview-thumb:hover {
  color: var(--text);
  border-color: var(--border-strong);
}
.preview-thumb.active {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}

/* ---------- Mobile slider (Android tab) ---------- */
.mobile-slider {
  position: relative;
  max-width: 400px;
  margin: 0 auto;
  padding: 0 8px;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
}
.mobile-slider-viewport {
  overflow: hidden;
  border-radius: 28px;
}
.mobile-slides {
  display: flex;
  transition: transform 0.45s var(--ease);
}
.mobile-slide {
  flex: 0 0 100%;
  min-width: 100%;
  text-align: center;
}
.mobile-slide .phone-frame {
  margin: 0 auto 14px;
  box-shadow: var(--shadow-md);
}
.mobile-slide img {
  width: 100%;
  height: auto;
}
.mobile-slide figcaption {
  font-size: 0.85rem;
  color: var(--text-2);
  font-weight: 500;
}
.mobile-slider-arrow {
  position: absolute;
  top: 42%;
  transform: translateY(-50%);
  z-index: 3;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  background: var(--glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--text-2);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.mobile-slider-arrow:hover {
  background: var(--surface-2);
  color: var(--text);
  border-color: var(--border-strong);
}
.mobile-slider-arrow.prev { left: -52px; }
.mobile-slider-arrow.next { right: -52px; }
.mobile-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 18px;
}
.mobile-dot {
  position: relative;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  border: none;
  padding: 0;
  background: transparent;
  cursor: pointer;
}
.mobile-dot::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--text-3);
  transform: translate(-50%, -50%);
  transition: background 0.25s ease, width 0.25s var(--ease);
}
.mobile-dot:hover::after {
  background: var(--text-2);
}
.mobile-dot.active::after {
  background: var(--accent);
  width: 22px;
}

.theme-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}
.theme-card {
  flex: 1 1 30%;
  min-width: 290px;
  max-width: 380px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  cursor: zoom-in;
  transition: transform 0.25s var(--ease), border-color 0.25s ease, box-shadow 0.25s ease;
}
.theme-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.theme-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
}
.theme-card img {
  width: 100%;
  height: auto;
  display: block;
}
.theme-card figcaption {
  padding: 12px 16px;
  font-size: 0.85rem;
  color: var(--text-2);
  font-weight: 500;
  border-top: 1px solid var(--border);
  text-align: left;
}

/* ---------- Features ---------- */
#features {
  position: relative;
  overflow: hidden;
}
#features > .container {
  position: relative;
  z-index: 1;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 26px 22px;
  transition: transform 0.25s var(--ease), border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}
.feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  background: var(--card-bg-hover);
}

/* The card for whatever shipped in the current release. Accent tokens only, so
   it reads the same in both themes — same convention as .faq-item[open]. */
.feature-badge {
  display: inline-flex;
  align-items: center;
  /* inline-flex drops the whitespace between the label and the version span,
     so the gap has to be explicit or it reads "New inv0.5.3-beta". */
  gap: 4px;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--accent-border);
  border-radius: 999px;
  padding: 3px 10px;
  margin-bottom: 14px;
  white-space: nowrap;
}
.feature-card-new {
  border-color: var(--accent-border);
}
.feature-card-new:hover {
  border-color: var(--accent-border-strong);
}

.feature-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.08rem;
  margin-bottom: 8px;
  letter-spacing: -0.2px;
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.65;
}

/* ---------- How it works ---------- */
#how-it-works {
  position: relative;
  overflow: hidden;
}
#how-it-works > .container {
  position: relative;
  z-index: 1;
}

.need-callout {
  max-width: 720px;
  margin: 0 auto 48px;
  padding: 18px 24px;
  display: flex;
  align-items: flex-start;
  gap: 22px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--card-bg-soft);
}
.need-title {
  flex-shrink: 0;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
}
.need-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.need-list li {
  font-size: 0.88rem;
  color: var(--text-2);
  line-height: 1.55;
}

.walkthrough-steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 960px;
  margin: 0 auto;
}
/* Steps, not cards.
   This was three bordered cards in a grid — the same shape as the features grid
   above it, which is why the two sections read as one long list of boxes. A
   sequence does not want boxes: the numbered nodes and the line between them ARE
   the structure, and the text sits under each node. */
.walkthrough-step {
  position: relative;
  padding: 0 4px;
  text-align: center;
}
.walkthrough-step h3 {
  margin: 0 0 10px;
  font-size: 16px;
  line-height: 1.35;
  color: var(--text);
  font-weight: 600;
}
.walkthrough-step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text-2);
  max-width: 34ch;
  margin-inline: auto;
}
.walkthrough-step:not(:last-child)::after {
  content: '';
  position: absolute;
  z-index: 1;
  top: 31px;
  left: calc(50% + 40px);
  right: calc(-50% + 40px);
  height: 1px;
  background: linear-gradient(to right, var(--border-strong), var(--border));
  transform-origin: left center;
  pointer-events: none;
}
.walkthrough-num {
  position: relative;
  z-index: 2;
  width: 62px;
  height: 62px;
  margin: 0 auto 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: var(--bg);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-2);
}
.walkthrough-step h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.2px;
  margin-bottom: 8px;
}
.walkthrough-step p {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.65;
}
.walkthrough-note {
  margin-top: 32px;
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-3);
}

/* ---------- Tech (spec sheet) ---------- */
.tech-section .section-header {
  text-align: left;
  margin-bottom: 32px;
}
.tech-section .section-header p {
  margin-left: 0;
}

.spec-panel {
  max-width: 860px;
  margin: 0 auto;
  background: var(--card-bg-mid);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}
.spec-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 20px;
  align-items: baseline;
  margin: 0;
  padding: 14px 22px;
}
.spec-row + .spec-row {
  border-top: 1px solid var(--border);
}
.spec-row dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
}
.spec-row dd {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.5;
}
.spec-caption {
  text-align: center;
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--text-3);
}

/* ---------- FAQ ---------- */
.faq-section {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--border);
  background: radial-gradient(ellipse 60% 40% at 50% 0%, rgba(var(--accent-rgb), 0.05), transparent 70%);
}
.faq-section > .container {
  position: relative;
  z-index: 1;
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0 22px;
  transition: border-color 0.25s ease, background 0.25s ease;
}
.faq-item:hover {
  border-color: var(--accent-border);
}
.faq-item[open] {
  border-color: var(--accent-border-strong);
  background: var(--card-bg-hover);
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '';
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--text-2);
  border-bottom: 2px solid var(--text-2);
  transform: rotate(45deg);
  transition: transform 0.25s var(--ease);
  flex-shrink: 0;
  margin-top: -4px;
}
.faq-item[open] summary::after {
  transform: rotate(-135deg);
  margin-top: 4px;
}
.faq-item p {
  padding: 0 0 18px;
  font-size: 0.92rem;
  color: var(--text-2);
  line-height: 1.65;
}

/* ---------- Download ---------- */
.download-section {
  position: relative;
  overflow: hidden;
}
.download-section > .container {
  position: relative;
  z-index: 1;
}
.download-section::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse 60% 50% at 50% 100%, rgba(var(--accent-rgb), 0.08), transparent 70%);
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.download-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px 18px 24px;
  text-align: center;
  color: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: transform 0.25s var(--ease), border-color 0.25s ease, box-shadow 0.25s ease;
}
.download-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  color: inherit;
}

.platform-icon {
  width: 48px;
  height: 48px;
  border-radius: 13px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 6px;
}

.download-card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.12rem;
}
.download-card .version-note {
  font-size: 0.8rem;
  color: var(--text-3);
}

.download-sub {
  text-align: center;
  margin-top: 28px;
}
.download-sub p {
  font-size: 0.88rem;
  color: var(--text-3);
}

.download-mobile-cta {
  display: none;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 56px 0 28px;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand { max-width: 300px; }
.footer-brand .navbar-logo { margin-bottom: 12px; }
.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-3);
  line-height: 1.65;
}

.footer-links {
  display: flex;
  gap: 56px;
}
.footer-links-col h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-3);
  margin-bottom: 14px;
}
.footer-links-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links-col a {
  font-size: 0.9rem;
  color: var(--text-2);
}
.footer-links-col a:hover { color: var(--text); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--text-3);
}
.footer-bottom .heart { color: var(--red); }

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 900;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  background: var(--glass-solid);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s var(--ease), background 0.2s ease, border-color 0.2s ease;
  box-shadow: var(--shadow-md);
}
.back-to-top.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top:hover {
  background: var(--surface-2);
  border-color: var(--border-strong);
  color: var(--text);
}

/* ---------- Theme lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.lightbox[hidden] {
  display: none;
}
.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: var(--scrim);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.lightbox-figure {
  position: relative;
  max-width: min(94vw, 1100px);
  max-height: 86vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}
#lightboxImg {
  display: block;
  max-width: 100%;
  max-height: 72vh;
  width: auto;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-xl);
  background: #000;
}
.lightbox-close {
  position: absolute;
  top: -14px;
  right: -14px;
  z-index: 2;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--glass-solid);
  border: 1px solid var(--border-strong);
  color: var(--text);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
}
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--glass-solid);
  border: 1px solid var(--border-strong);
  color: var(--text);
  cursor: pointer;
  font-size: 1.4rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
}
.lightbox-nav.prev { left: -60px; }
.lightbox-nav.next { right: -60px; }
.lightbox-close:hover,
.lightbox-nav:hover {
  background: var(--surface-2);
  border-color: var(--border-strong);
}
#lightboxCaption {
  text-align: center;
  padding-top: 14px;
  color: var(--text-2);
  font-size: 0.9rem;
}

@media (prefers-reduced-motion: no-preference) {
  .lightbox-figure {
    animation: lightboxIn 0.22s var(--ease);
  }
  @keyframes lightboxIn {
    from {
      opacity: 0;
      transform: scale(0.96);
    }
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .download-grid { grid-template-columns: repeat(2, 1fr); }
  .mobile-slider-arrow.prev { left: -8px; }
  .mobile-slider-arrow.next { right: -8px; }
  .phone-float { display: none; }
  .walkthrough-steps {
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 640px;
  }
  .walkthrough-step:not(:last-child)::after {
    top: 80px;
    bottom: -44px;
    left: 49px;
    right: auto;
    width: 1px;
    height: auto;
  }
  .walkthrough-num {
    margin: 0 0 16px;
  }
}

@media (max-width: 720px) {
  :root { --nav-h: 62px; }

  .nav-links,
  .nav-actions { display: none; }

  .nav-links.open {
    display: flex;
    /* absolute, not fixed.
       The navbar carries backdrop-filter, which makes it the containing block for
       fixed-position descendants. `position: fixed; top: var(--nav-h)` was therefore
       measured from the navbar instead of the viewport and the panel landed ~354px
       down the page, overlapping the hero. Absolute positioning against the fixed
       navbar is unambiguous, and `top: 100%` keeps it directly beneath the bar
       whether or not the announcement banner is present. */
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    /* Opaque, not translucent. At 0.88 alpha the large hero headline still bled
       through enough to read behind the links. */
    background: var(--bg-elevated, #141416);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
    padding: 12px 20px 20px;
    gap: 4px;
    z-index: 1002;
  }
  .nav-links.open .nav-link { padding: 12px 10px; }
  .nav-links.open .nav-mobile-extra {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
  }
  /* The switch takes its own row so the three states stay a comfortable tap
     target, and the two buttons share the row below. */
  /* The switch spanned the full row but its three buttons were fixed at 46px and
     centred, leaving dead space either side and a solid blue block floating in the
     middle — it read as three loose icons rather than one control. Equal-width
     segments fill the row and make the selection obvious. */
  .nav-links.open .theme-switch {
    width: 100%;
    justify-content: stretch;
    padding: 4px;
  }
  .nav-links.open .theme-switch button {
    flex: 1 1 0;
    width: auto;
    min-width: 0;
    height: 38px;
  }
  .nav-links.open .nav-mobile-extra .btn { flex: 1; justify-content: center; }

  .hamburger { display: flex; }

  .hero { padding: calc(var(--nav-h) + 40px) 0 24px; }
  .hero-copy { margin-bottom: 36px; }
  .hero-copy p { font-size: 1rem; }
  .section { padding: 72px 0; }
  .preview-section { padding: 56px 0 72px; }
  .mobile-slider { max-width: 320px; }

  .hero-phone-mobile { display: block; }
  .hero-visual .window { display: none; }

  .trust-grid { grid-template-columns: 1fr; }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .feature-card { padding: 16px 14px; }

  .download-grid { display: none; }
  .download-mobile-cta {
    display: inline-flex;
    margin-top: 8px;
  }
  .download-section .container { text-align: center; }

  .spec-row {
    grid-template-columns: 1fr;
    gap: 3px;
    padding: 13px 18px;
  }

  .need-callout {
    flex-direction: column;
    gap: 10px;
  }

  .theme-card { flex: 1 1 100%; min-width: 0; max-width: none; }

  #lightboxImg { max-height: 62vh; }
  .lightbox-nav.prev { left: -14px; }
  .lightbox-nav.next { right: -14px; }
  .lightbox-close { top: -10px; right: -10px; }

  .footer-grid,
  .footer-bottom {
    flex-direction: column;
    gap: 28px;
  }
  .footer-bottom { text-align: center; gap: 8px; }
  .footer-links { flex-direction: column; gap: 24px; }
}

@media (max-width: 479px) {
  .features-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .feature-card { padding: 20px 18px; }
}

@media (min-width: 721px) {
  .nav-mobile-extra { display: none; }
}

/* ------------------------------------------------------------------
   Security & Trust
   The one section that must be readable rather than impressive: a
   two-column grid of plain cards, with the gaps card marked so nobody
   mistakes it for marketing. Reuses the site's card tokens, so it
   follows the theme toggle like everything else.
   ------------------------------------------------------------------ */
.security-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 34px;
}
@media (max-width: 860px) {
  /* minmax(0, 1fr), not 1fr: a grid item defaults to min-width:auto, so the
     long fingerprint and code lines pushed the column wider than the phone. */
  .security-grid { grid-template-columns: minmax(0, 1fr); }
}
.security-card {
  /* and the same guard on the card itself, for the two-column case */
  min-width: 0;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 24px 20px;
  box-sizing: border-box;
}
.security-card h3 {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 14px;
  font-size: 16px;
  font-weight: 650;
  color: var(--text);
}
.security-card p {
  margin: 0 0 10px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text-2);
}
.security-card ul {
  margin: 0;
  padding: 0 0 0 18px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.security-card li {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text-2);
}
.security-card strong { color: var(--text); font-weight: 620; }
.security-card code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12.5px;
  color: var(--text);
}
/* The gaps card is deliberately not styled as a warning: it is a
   statement of fact, and alarm styling would read as an admission. */
.security-card--gaps {
  background: var(--card-bg-soft);
  border-style: dashed;
}
.security-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.security-dot--on { background: var(--green); }
.security-dot--off { background: var(--text-3); }

.security-fingerprint {
  display: block;
  margin: 4px 0 14px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--card-bg-strong);
  border: 1px solid var(--border);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--text);
  overflow-wrap: anywhere;
}
.security-code {
  margin: 0 0 12px;
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--card-bg-strong);
  border: 1px solid var(--border);
  overflow-x: auto;
}
.security-code code {
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-2);
  white-space: pre;
}
.security-note {
  font-size: 12.5px !important;
  color: var(--text-3) !important;
}
.security-card a { color: var(--accent); }

/* ------------------------------------------------------------------
   Features, rebuilt.

   It used to be fourteen identical cards in a three-column grid: an icon, a bold
   title, two lines of body — the shape every template ships, and the reason the
   page read as generated rather than designed. The features that actually define
   Orbit now get a row each, with room to say something; everything else is one
   dense list, so it is still all there without a wall of equal-weight boxes.
   ------------------------------------------------------------------ */
.pillars {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 44px;
}
.pillar {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 48px;
  align-items: center;
  padding: 40px 0;
  border-top: 1px solid var(--border);
}
.pillar:last-child { border-bottom: 1px solid var(--border); }
/* Alternating sides: the eye gets a rhythm instead of a column of identical rows. */
.pillar--flip .pillar-text { order: 2; }
.pillar--flip .pillar-visual { order: 1; }

.pillar-index {
  display: block;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--text-3);
  margin-bottom: 14px;
}
.pillar h3 {
  margin: 0 0 14px;
  font-size: clamp(21px, 2.3vw, 28px);
  line-height: 1.22;
  letter-spacing: -0.015em;
  color: var(--text);
  font-weight: 600;
}
.pillar p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text-2);
  max-width: 46ch;
}
.pillar-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.pillar-points li {
  position: relative;
  padding-left: 20px;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--text-2);
}
.pillar-points li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.8;
}

/* A spec block rather than a picture: honest, and it reads as documentation
   instead of decoration. */
.spec {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px 18px;
  padding: 22px 24px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--card-bg-soft);
}
.spec-label {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--text-3);
  white-space: nowrap;
}
.spec-value {
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-2);
}

/* ---- the one animation, and it explains the product ---- */
.pillar-visual { display: flex; justify-content: center; }
.p2p { width: 100%; max-width: 420px; height: auto; }
/* Give the diagram the room its column has: it is the one place on the page that
   shows how Orbit works rather than describing it. */
@media (min-width: 901px) { .pillar-visual .p2p { max-width: 440px; } }

.p2p-dot {
  animation: p2p-travel 4.6s cubic-bezier(0.45, 0, 0.55, 1) infinite;
}
.p2p-route {
  animation: p2p-route-pulse 4.6s ease-in-out infinite;
}
.p2p-arrival {
  animation: p2p-arrive 4.6s ease-out infinite;
}
.p2p-absent {
  animation: p2p-absent 4.6s ease-in-out infinite;
}

/* The dot leaves the laptop, crosses, and lands on the phone — the whole idea of
   the product in one gesture. Nothing is animated that does not say something. */
@keyframes p2p-travel {
  0%, 8%   { transform: translateX(0);      opacity: 0; }
  14%      { opacity: 1; }
  46%      { transform: translateX(184px);  opacity: 1; }
  52%      { opacity: 0; }
  100%     { transform: translateX(184px);  opacity: 0; }
}
@keyframes p2p-arrive {
  0%, 46%  { opacity: 0; r: 4; }
  54%      { opacity: 0.9; r: 9; }
  70%      { opacity: 0; r: 4; }
  100%     { opacity: 0; r: 4; }
}
@keyframes p2p-route-pulse {
  0%, 10%  { opacity: 0.25; }
  30%      { opacity: 1; }
  60%      { opacity: 0.25; }
  100%     { opacity: 0.25; }
}
@keyframes p2p-absent {
  0%, 100% { opacity: 0.75; }
  50%      { opacity: 1; }
}

/* ---- everything else, dense and scannable ---- */
.feature-rest { margin-top: 44px; }
.feature-rest h3 {
  margin: 0 0 18px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
}
.feature-rest-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px 32px;
}
.feature-rest-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-2);
}
.feature-rest-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--text-3);
  opacity: 0.5;
}

@media (max-width: 900px) {
  .pillar { grid-template-columns: minmax(0, 1fr); gap: 28px; padding: 32px 0; }
  /* On one column the visual should follow its text, never precede it. */
  .pillar--flip .pillar-text { order: 1; }
  .pillar--flip .pillar-visual { order: 2; }
  .feature-rest-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .feature-rest-list { grid-template-columns: minmax(0, 1fr); }
}

/* The animation is decoration with a job, and it stops when movement is unwelcome. */
@media (prefers-reduced-motion: reduce) {
  .p2p-dot, .p2p-route, .p2p-arrival, .p2p-absent { animation: none; }
  .p2p-dot { opacity: 1; transform: translateX(92px); }
  .p2p-arrival { opacity: 0.5; }
}

/* ------------------------------------------------------------------
   How it works — the line draws itself as the sequence arrives.
   One animation, and it says the only thing this section has to say: these happen
   in order. Where scroll-driven animation is unavailable the line is simply there,
   which is a perfectly good static state.
   ------------------------------------------------------------------ */
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .walkthrough-step:not(:last-child)::after {
      animation: walk-line linear both;
      animation-timeline: view();
      animation-range: entry 15% entry 75%;
    }
    .walkthrough-num {
      animation: walk-node linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 45%;
    }
  }
}
@keyframes walk-line {
  from { transform: scaleX(0); opacity: 0; }
  to   { transform: scaleX(1); opacity: 1; }
}
@keyframes walk-node {
  from { border-color: var(--border); color: var(--text-3); }
  to   { border-color: var(--accent); color: var(--accent); }
}

/* Stacked: the sequence runs downwards, so the connector has to as well. The
   horizontal line would otherwise point at nothing. */
@media (max-width: 860px) {
  .walkthrough-steps {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    max-width: 520px;
  }
  .walkthrough-step {
    text-align: left;
    padding-left: 76px;
  }
  .walkthrough-step h3 { margin-top: 6px; }
  .walkthrough-step p { margin-inline: 0; max-width: none; }
  .walkthrough-num {
    position: absolute;
    left: 0;
    top: 0;
    margin: 0;
  }
  .walkthrough-step:not(:last-child)::after {
    top: 62px;
    bottom: -28px;
    left: 31px;
    right: auto;
    width: 1px;
    height: auto;
    background: linear-gradient(to bottom, var(--border-strong), var(--border));
    transform-origin: top center;
  }
  @keyframes walk-line {
    from { transform: scaleY(0); opacity: 0; }
    to   { transform: scaleY(1); opacity: 1; }
  }
}

/* ------------------------------------------------------------------
   FAQ, grouped.

   Seven identical rows said nothing about which question matters — the same
   uniformity as the old feature grid, one section further down. Three labelled
   groups give it a shape you can scan, and the first answer in each group is open
   so the section arrives with substance rather than seven closed bars.
   ------------------------------------------------------------------ */
.faq-groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px 48px;
  margin-top: 40px;
}
.faq-group h3 {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
}
.faq-group .faq-list { display: flex; flex-direction: column; gap: 10px; }
.faq-more {
  margin: 44px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--border);
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--text-2);
  max-width: 70ch;
}
.faq-more a { color: var(--accent); }

@media (max-width: 900px) {
  .faq-groups { grid-template-columns: minmax(0, 1fr); gap: 32px; }
}