/* OmnyLLM — content layer over the WebGL world.
   The page is dark by design (it sits on a night scene), so there is a single
   color scheme. Contrast of text tokens against --bg: text 17:1, muted 8:1,
   dim 5:1. */

:root {
  --bg: #03070d;
  --bg-raise: #07101a;
  --text: #eef5fa;
  --muted: #9db2c3;
  --dim: #7a91a3;
  /* Page accent (buttons, eyebrows, headline gradient, links, marks). */
  --accent: #b7f8ff;
  --accent-soft: #dcfcff;
  --accent-start: #f2feff;
  --accent-end: #6be8e8;
  --accent-rgb: 183, 248, 255;
  /* 3D colour grammar, used by world captions and the scene legend:
     cyan is readable data on your side. */
  --cyan: #17c7ff;
  --cyan-soft: #72e7ff;
  --green: #41e6ad;
  --ice: #9edbff;
  --warn: #ffb45c;
  --line: rgba(160, 200, 230, 0.13);
  --line-strong: rgba(160, 210, 240, 0.24);
  --panel: rgba(6, 13, 22, 0.66);
  --panel-solid: rgba(6, 13, 22, 0.9);
  /* Halo for text that sits directly on the 3D world: a tight shadow for
     the letter edges plus a wide soft one that darkens the area around. */
  --read-shadow:
    0 1px 2px rgba(3, 7, 13, 0.7),
    0 0 8px rgba(3, 7, 13, 0.55),
    0 0 22px rgba(3, 7, 13, 0.5);
  /* Lighter, tighter halo for text inside unblurred panels (low tier): the
     panel tint already does most of the work. */
  --panel-read-shadow:
    0 1px 2px rgba(3, 7, 13, 0.6),
    0 0 6px rgba(3, 7, 13, 0.45);

  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-display: "Inter Tight", var(--font-sans);
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --max: 1200px;
  --gutter: clamp(16px, 4vw, 40px);
  --radius: 18px;
  --header-h: 68px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);

  color-scheme: dark;
}
/* With the menu collapsed the bar holds only the logo and the menu icon, so
   it can be thinner. */
@media (max-width: 959px) {
  :root { --header-h: 56px; }
}
/* Phones in landscape have little height to spare: thinner still. */
@media (orientation: landscape) and (max-height: 500px) and (pointer: coarse) {
  :root { --header-h: 44px; }
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
p { margin: 0; }
h1, h2, h3, h4 { margin: 0; font-weight: 600; }
ul, ol { margin: 0; padding: 0; }
[role="list"], .site-nav ul, .chips, .audit-log { list-style: none; }

:focus-visible {
  outline: 2px solid var(--accent-soft);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--accent);
  color: #02121b;
  font-weight: 600;
  transform: translateY(-160%);
  transition: transform 0.2s var(--ease);
}
.skip-link:focus { transform: none; }

.wrap {
  width: min(100% - 2 * var(--gutter), var(--max));
  margin-inline: auto;
}

/* ------------------------------------------------------------------ */
/* Background layers                                                   */

.world-poster,
.world-canvas,
.world-scrim {
  position: fixed;
  inset: 0 0 auto 0;
  width: 100%;
  height: 100vh;
  height: 100lvh;
  pointer-events: none;
}

/* Static stand-in for the world: shown while the 3D world loads, without
   JS/WebGL, and on the "off" tier. It matches the watercolour render (cool
   grey-blue paper, grain, pencil-grey grid, a corridor of layer outlines)
   so the live world fades in without a jump in tone. */
.world-poster {
  z-index: 0;
  background:
    /* paper grain */
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.85 0 0 0 0 0.9 0 0 0 0 0.95 0 0 0 0.09 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"),
    /* soft light where the model sits */
    radial-gradient(70% 55% at 72% 48%, rgba(170, 190, 205, 0.22), transparent 70%),
    linear-gradient(180deg, #2a3138 0%, #475059 46%, #535c65 60%, #3a4148 100%);
}
.world-poster::before {
  /* pencil-grey ground grid in perspective */
  content: "";
  position: absolute;
  inset: 58% -40% 0 -40%;
  background-image:
    linear-gradient(rgba(215, 228, 238, 0.13) 1px, transparent 1px),
    linear-gradient(90deg, rgba(215, 228, 238, 0.13) 1px, transparent 1px);
  background-size: 72px 72px;
  transform: perspective(420px) rotateX(62deg);
  transform-origin: top center;
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 45%);
  mask-image: linear-gradient(180deg, transparent, #000 45%);
}
.world-poster::after {
  /* the model: a corridor of layer outlines receding to the right */
  content: "";
  position: absolute;
  right: 2%;
  top: 46%;
  width: 42vw;
  height: clamp(70px, 12vh, 120px);
  background: repeating-linear-gradient(
    90deg,
    rgba(215, 232, 242, 0.32) 0 1.5px,
    rgba(215, 232, 242, 0.04) 1.5px 2.2vw
  );
  border-block: 1px solid rgba(215, 232, 242, 0.18);
  transform: perspective(900px) rotateY(-42deg);
  transform-origin: left center;
  -webkit-mask-image: linear-gradient(90deg, #000 30%, transparent);
  mask-image: linear-gradient(90deg, #000 30%, transparent);
}

.world-canvas {
  z-index: 1;
  opacity: 0;
  transition: opacity 1.8s ease;
}
.world-ready .world-canvas { opacity: 1; }
.q-off .world-canvas { display: none; }

/* Keeps text readable over the brightest frames: darker on the reading
   side, open on the right where the world is framed. */
.world-scrim {
  z-index: 2;
  background:
    linear-gradient(90deg, rgba(3, 7, 13, 0.82) 0%, rgba(3, 7, 13, 0.55) 38%, rgba(3, 7, 13, 0.08) 72%, rgba(3, 7, 13, 0.18) 100%),
    linear-gradient(180deg, rgba(3, 7, 13, 0.5) 0%, transparent 18%, transparent 78%, rgba(3, 7, 13, 0.7) 100%);
}

@media (max-width: 820px) {
  .world-scrim {
    background:
      linear-gradient(180deg, rgba(3, 7, 13, 0.55) 0%, rgba(3, 7, 13, 0.4) 40%, rgba(3, 7, 13, 0.68) 100%);
  }
  /* Phones frame the model above the text. */
  .world-poster::after { right: 0; top: 16%; width: 78vw; height: 12vh; }
}

/* Captions projected onto the world: above the scrim, below the content. */
.world-labels {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  overflow: hidden;
}
.world-label {
  position: absolute;
  left: 0;
  top: 0;
  opacity: 0;
  transition: opacity 0.5s ease;
  will-change: transform, opacity;
}
.world-label.is-visible { opacity: 1; }
.world-label::before {
  /* the anchor point */
  content: "";
  position: absolute;
  left: -3px;
  top: -3px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan-soft);
  box-shadow: 0 0 10px var(--cyan);
}
.world-label::after {
  /* leader line up to the caption */
  content: "";
  position: absolute;
  left: 0;
  bottom: 3px;
  width: 1px;
  /* --lift is set per label when a caption is raised to clear a sibling. */
  height: calc(var(--lift, 32px) - 2px);
  background: linear-gradient(to top, rgba(114, 231, 255, 0.85), rgba(114, 231, 255, 0.15));
}
.world-label-box {
  position: absolute;
  left: -1px;
  bottom: var(--lift, 32px);
  padding: 5px 10px;
  /* Same glass as the page panels (tint, frost, top highlight, light
     border), keeping the coloured edge that ties it to its leader line. */
  border: 1px solid rgba(190, 220, 240, 0.18);
  border-left: 1px solid var(--cyan-soft);
  border-radius: 0 8px 8px 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02) 60%),
    linear-gradient(rgba(170, 190, 210, 0.06), rgba(170, 190, 210, 0.06)),
    rgba(8, 15, 24, 0.51);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 8px 22px rgba(0, 0, 0, 0.16);
  text-shadow: var(--panel-read-shadow);
  white-space: nowrap;
  font: 500 0.7rem/1.35 var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
}
.world-label.is-flipped .world-label-box {
  left: auto;
  right: -1px;
  border-left: 1px solid var(--line-strong);
  border-right: 1px solid var(--cyan-soft);
  border-radius: 8px 0 0 8px;
  text-align: right;
}
/* Hung below the anchor, to clear a sibling caption above it. */
.world-label.is-below::after {
  top: 3px;
  bottom: auto;
  background: linear-gradient(to bottom, rgba(114, 231, 255, 0.85), rgba(114, 231, 255, 0.15));
}
.world-label.is-below .world-label-box {
  top: var(--lift, 32px);
  bottom: auto;
}
/* Ambient captions float over the GPU host: purple accent, lighter weight. */
/* Ambient captions (e.g. "Blind processing") are neutral grey, so they read
   as a quiet overlay rather than part of the scene's colour grammar. */
.world-label.is-ambient::before {
  background: #aab4bf;
  box-shadow: 0 0 10px rgba(170, 180, 191, 0.6);
}
.world-label.is-ambient::after {
  background: linear-gradient(to top, rgba(170, 180, 191, 0.8), rgba(170, 180, 191, 0.1));
}
.world-label.is-ambient .world-label-box {
  border-color: rgba(170, 180, 191, 0.3);
  border-left-color: #aab4bf;
  color: #dfe5eb;
}
@supports ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  html:not(.q-low) .world-label-box {
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.015) 60%),
      rgba(6, 13, 22, 0.39);
    -webkit-backdrop-filter: blur(10px) saturate(140%);
    backdrop-filter: blur(10px) saturate(140%);
  }
}
.world-label.is-ambient.is-flipped .world-label-box {
  border-left-color: rgba(170, 180, 191, 0.3);
  border-right-color: #aab4bf;
}
/* Span labels mark a stretch of the world: a bracket between two projected
   points (positioned and rotated from Dart) with the caption centred above.
   The element itself stays at the origin; children carry the transforms. */
.world-label.is-span::before,
.world-label.is-span::after { display: none; }
.world-label-bracket {
  position: absolute;
  left: 0;
  top: 0;
  height: 0;
  border-top: 1px solid var(--cyan-soft);
  transform-origin: 0 100%;
}
.world-label.is-span .world-label-box {
  left: 0;
  top: 0;
  bottom: auto;
  border-radius: 8px;
  border-left-width: 1px;
}
.world-label.is-ambient .world-label-bracket {
  border-color: #aab4bf;
  box-shadow: 0 -4px 12px -6px rgba(170, 180, 191, 0.7);
  opacity: 0.6;
}
.world-label.is-ambient.is-span .world-label-box {
  border-color: rgba(170, 180, 191, 0.5);
}
.world-label-detail {
  display: block;
  font-weight: 400;
  letter-spacing: 0.02em;
  text-transform: none;
  color: var(--muted);
  white-space: pre; /* break only at explicit line breaks in captions */
}
@media (max-width: 560px) {
  .world-label-box { font-size: 0.62rem; padding: 4px 8px; }
}
/* Phones in landscape: too little height to stack two-line captions, so
   they show the title only. */
@media (orientation: landscape) and (max-height: 500px) and (pointer: coarse) {
  .world-label-box { font-size: 0.62rem; padding: 4px 8px; }
  .world-label-detail { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .world-label { transition: none; }
}
.q-off .world-labels { display: none; }

/* Everything above the background. */
.site-header, main, .site-footer { position: relative; z-index: 3; }

/* ------------------------------------------------------------------ */
/* Header                                                              */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 20;
  height: var(--header-h);
  padding-top: env(safe-area-inset-top);
  box-sizing: content-box;
  border-bottom: 1px solid transparent;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}
/* The bar's glass lives on a ::before layer, not on the header itself: an
   element with backdrop-filter becomes a "backdrop root", and the mobile
   menu sheet inside the header could then only blur the header, never the
   page behind it. */
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: transparent;
  transition: background-color 0.3s ease;
  pointer-events: none;
}
.site-header.is-scrolled,
.site-header.nav-open {
  border-bottom-color: var(--line);
}
.site-header.is-scrolled::before,
.site-header.nav-open::before {
  background: rgb(3 7 13 / 10%);
}
@supports ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  .site-header.is-scrolled::before,
  .site-header.nav-open::before {
    -webkit-backdrop-filter: blur(16px) saturate(130%);
    backdrop-filter: blur(16px) saturate(130%);
  }
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.12rem;
  letter-spacing: 0.01em;
}
.brand-mark {
  position: relative;
  width: 28px;
  height: 28px;
  border: 1px solid rgba(var(--accent-rgb), 0.45);
  border-radius: 8px;
  background: rgba(var(--accent-rgb), 0.04);
  box-shadow: 0 0 14px rgba(var(--accent-rgb), 0.12);
  flex: none;
}
.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  transform: rotate(45deg);
}
/* Two nested diamonds; small radii so they stay diamonds, not circles. */
.brand-mark::before {
  inset: 7px;
  border: 1.5px solid var(--accent);
  border-radius: 2px;
}
.brand-mark::after {
  inset: 11px;
  background: var(--accent-end);
  border-radius: 1px;
  box-shadow: 0 0 6px var(--accent-end);
}

.site-menu {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 28px;
}
.site-nav ul { display: flex; gap: 26px; }
.site-nav a {
  position: relative;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
  padding-block: 6px;
  transition: color 0.2s ease;
}
.site-nav a:hover,
.site-nav a[aria-current="true"] { color: var(--text); }
.site-nav a[aria-current="true"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 1px;
  background: var(--accent);
}

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 44px;
  height: 44px;
  /* Minimal: just the two lines, no box. The 44px button keeps the tap
     target; a soft shadow keeps the lines legible over the world. */
  border: 0;
  border-radius: 10px;
  background: none;
  color: var(--text);
  filter: drop-shadow(0 1px 2px rgba(3, 7, 13, 0.7));
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: color 0.2s ease;
}
.nav-toggle:hover,
.nav-open .nav-toggle {
  color: var(--accent);
}
.nav-toggle-bar {
  width: 18px;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.25s var(--ease);
}
.nav-open .nav-toggle-bar:first-child { transform: translateY(3.75px) rotate(45deg); }
.nav-open .nav-toggle-bar:last-child { transform: translateY(-3.75px) rotate(-45deg); }

@media (max-width: 959px) {
  .has-js .nav-toggle { display: inline-flex; }
  .has-js .site-menu {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 20px;
    padding: 12px var(--gutter) 24px;
    /* A continuation of the top bar: the bar's exact tint and saturation,
       with a stronger blur so page text behind the links melts into a
       soft wash. No border between bar and sheet. */
    background: rgb(3 7 13 / 10%);
    -webkit-backdrop-filter: blur(34px) saturate(130%);
    backdrop-filter: blur(34px) saturate(130%);
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    /* Subtle drop shadow; the open clip-path below leaves room for it. */
    box-shadow: 0 10px 24px rgba(3, 7, 13, 0.28), 0 2px 6px rgba(3, 7, 13, 0.18);
    text-shadow: var(--panel-read-shadow);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    /* Closed: rolled up into the bar. Opening unrolls it from the top and
       fades it in; visibility keeps the hidden links out of the tab order. */
    /* The clip extends past the sides and bottom so the drop shadow isn't
       cut off. */
    clip-path: inset(0 -40px 100% -40px);
    opacity: 0;
    visibility: hidden;
    transition:
      clip-path 0.24s ease-in,
      opacity 0.2s ease-in 0.04s,
      visibility 0s linear 0.24s;
  }
  .has-js .nav-open .site-menu {
    clip-path: inset(0 -40px -48px -40px);
    opacity: 1;
    visibility: visible;
    transition:
      clip-path 0.32s cubic-bezier(0.2, 0.7, 0.2, 1),
      opacity 0.22s ease-out,
      visibility 0s;
  }
  .has-js .site-menu .btn { text-shadow: none; }
  /* Bar and sheet read as one surface: drop the bar's bottom line. */
  .has-js .site-header.nav-open { border-bottom-color: transparent; }
  /* Without backdrop-filter the bar's 10% tint can't carry text over the
     page, so the sheet falls back to a dense slate of the same look. */
  @supports not ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
    .has-js .site-menu { background: rgba(34, 41, 49, 0.94); }
  }
  @media (prefers-reduced-motion: reduce) {
    .has-js .site-menu,
    .has-js .nav-open .site-menu {
      transition: opacity 0.1s linear, visibility 0s linear 0.1s;
      clip-path: none;
    }
    .has-js .nav-open .site-menu { transition: opacity 0.1s linear, visibility 0s; }
  }
  .has-js .site-nav ul { flex-direction: column; gap: 0; }
  .has-js .site-nav a {
    display: block;
    padding: 14px 2px;
    font-size: 1.05rem;
    border-bottom: 1px solid var(--line);
  }
  .has-js .site-nav a[aria-current="true"]::after { display: none; }

  /* Landscape phones: a compact brand, toggle and menu to fit the thin bar. */
  @media (orientation: landscape) and (max-height: 500px) and (pointer: coarse) {
    .brand { gap: 10px; font-size: 1rem; }
    .brand-mark { width: 24px; height: 24px; }
    .brand-mark::before { inset: 6px; }
    .brand-mark::after { inset: 9.5px; }
    .nav-toggle { height: 40px; }
    .has-js .site-menu { gap: 12px; padding-block: 4px 14px; }
    .has-js .site-nav a { padding-block: 9px; font-size: 0.98rem; }
  }

  /* Without JS: a horizontally scrollable link row instead of a menu. */
  html:not(.has-js) .site-header { height: auto; }
  html:not(.has-js) .header-inner { flex-wrap: wrap; padding-block: 12px; }
  html:not(.has-js) .site-menu { width: 100%; overflow-x: auto; }
}

/* ------------------------------------------------------------------ */
/* Type, buttons, shared pieces                                        */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-soft);
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--accent);
}
.eyebrow-index { color: var(--dim); }

h1 {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6.4vw, 5.6rem);
  line-height: 1;
  letter-spacing: -0.035em;
  margin-block: 22px 26px;
  text-wrap: balance;
}
h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.4vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  text-wrap: balance;
}
h3, h4 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  line-height: 1.25;
  letter-spacing: -0.01em;
}
.accent-text {
  color: var(--accent-soft);
  background: linear-gradient(90deg, var(--accent-start), var(--accent-soft) 60%, var(--accent-end));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  /* A text-shadow would show through the transparent fill; a drop-shadow
     filter applies to the painted gradient instead. */
  text-shadow: none;
  filter: drop-shadow(0 1px 2px rgba(3, 7, 13, 0.65)) drop-shadow(0 0 14px rgba(3, 7, 13, 0.55));
}

/* Text that sits directly on the 3D world gets the reading halo. Panels,
   buttons and chips have their own background, so they opt out. */
.hero-copy,
.section-head,
.benefits,
.legend,
.uses-heading,
.contact-card,
.site-footer,
.scroll-cue {
  text-shadow: var(--read-shadow);
}
.panel,
.btn,
.chips li {
  text-shadow: none;
}
/* Unblurred panels (low tier, or no backdrop-filter support) show the 3D
   lines sharply behind their text, so their text gets a light halo too. */
.q-low .panel {
  text-shadow: var(--panel-read-shadow);
}
@supports not ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  .panel {
    text-shadow: var(--panel-read-shadow);
  }
}
.q-low .panel .btn {
  text-shadow: none;
}

.lede,
.section-lede {
  color: var(--muted);
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  line-height: 1.6;
  max-width: 38em;
}

.actions { display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 22px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.2;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s var(--ease);
}
.btn-small { min-height: 40px; padding: 8px 16px; font-size: 0.88rem; }
.btn-primary {
  background: var(--accent);
  color: #02121b;
}
.btn-primary:hover { background: var(--accent-soft); }
.btn-ghost {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}
.btn-ghost:hover { border-color: rgba(var(--accent-rgb), 0.5); background: rgba(var(--accent-rgb), 0.06); }
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .btn:hover { transform: translateY(-1px); }
}

/* Glass panels: translucent tint over a blurred view of the world, with a
   faint top highlight. On the low tier they stay translucent but drop the
   blur, the only costly part over a live WebGL backdrop. A faint light
   frost stands in for the milky lift a blur gives, so they read like the
   blurred panels. Without backdrop-filter support, the same unblurred
   glass is used. */
.panel {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02) 40%),
    linear-gradient(rgba(170, 190, 210, 0.06), rgba(170, 190, 210, 0.06)),
    rgba(8, 15, 24, 0.46);
  border: 1px solid rgba(190, 220, 240, 0.18);
  border-radius: var(--radius);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 18px 50px rgba(0, 0, 0, 0.28);
}
@supports ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  html:not(.q-low) .panel {
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.015) 40%),
      rgba(6, 13, 22, 0.38);
    border-color: rgba(190, 220, 240, 0.18);
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.08),
      0 18px 50px rgba(0, 0, 0, 0.28);
    -webkit-backdrop-filter: blur(22px) saturate(140%);
    backdrop-filter: blur(22px) saturate(140%);
  }
  /* Phones: lighter blur keeps scrolling smooth over the live canvas. */
  @media (pointer: coarse) {
    html:not(.q-low) .panel {
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.01) 40%),
        rgba(6, 13, 22, 0.5);
      -webkit-backdrop-filter: blur(12px) saturate(130%);
      backdrop-filter: blur(12px) saturate(130%);
    }
  }
}

/* ------------------------------------------------------------------ */
/* Sections                                                            */

.section {
  padding-block: clamp(96px, 16vh, 180px);
}
.section-head {
  display: grid;
  gap: 18px;
  max-width: 760px;
  margin-bottom: clamp(40px, 6vh, 64px);
}

/* Hero */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: calc(var(--header-h) + 48px);
  padding-bottom: 96px;
  position: relative;
}
.hero-copy { max-width: 760px; }
.hero .lede { margin-bottom: 34px; }
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 36px;
}
.chips li {
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(3, 7, 13, 0.5);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  display: grid;
  justify-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dim);
}
.scroll-cue::after {
  content: "";
  width: 1px;
  height: 36px;
  background: linear-gradient(180deg, var(--accent), transparent);
}
@media (prefers-reduced-motion: no-preference) {
  .scroll-cue::after { animation: cue 2.8s var(--ease) infinite; transform-origin: top; }
}
@keyframes cue {
  0% { transform: scaleY(0); opacity: 0; }
  30% { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(1); opacity: 0; }
}
@media (max-height: 620px) { .scroll-cue { display: none; } }

/* 01 · Compare */
.compare {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  max-width: 900px;
  margin-bottom: 16px;
}
.compare-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 28px;
}
.compare-card > p:not([class]) { color: var(--muted); }
.compare-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
}
.sample {
  margin-top: 8px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px dashed var(--line-strong);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #d7e6f1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sample-opaque { color: rgba(65, 230, 173, 0.75); letter-spacing: 0.1em; }
.status {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.status-warn { color: var(--warn); }
.status-ok { color: var(--green); }
.is-opaque { border-color: rgba(65, 230, 173, 0.3); }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.feature { padding: 26px; display: grid; gap: 10px; align-content: start; }
.feature p { color: var(--muted); font-size: 0.98rem; }
.feature-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  position: relative;
  margin-bottom: 6px;
}
.feature-icon::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid var(--accent);
}
.icon-blind::after { background: repeating-linear-gradient(90deg, var(--accent) 0 2px, transparent 2px 5px); border-color: transparent; }
.icon-custody::after { border-radius: 50%; border-color: var(--green); }
.icon-infra::after { inset: 9px 8px; border-radius: 2px; box-shadow: 0 -5px 0 -3px var(--accent); }

/* 02 · Pillars */
.pillars {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.pillar {
  padding: 30px;
  display: grid;
  gap: 12px;
  align-content: start;
  transition: border-color 0.4s ease;
}
.pillar p:not([class]) { color: var(--muted); }
.pillar-num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green);
}
.audit-log {
  margin-top: 8px;
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--dim);
  overflow-x: auto;
}
.audit-log li { white-space: nowrap; }
.audit-log time { color: var(--muted); margin-right: 8px; }
.audit-log span { color: var(--cyan-soft); display: inline-block; min-width: 9ch; }

/* 03 · Pipeline */
.pipeline {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  padding: 28px;
  margin-bottom: clamp(40px, 6vh, 64px);
  max-width: 1040px;
}
.stage { display: grid; gap: 6px; align-content: start; text-align: center; padding: 10px; }
.stage-note { color: var(--muted); font-size: 0.9rem; line-height: 1.5; max-width: 22em; margin-inline: auto; }
.pipeline .stage:nth-child(2) { grid-column: 3; }
.pipeline .stage:nth-child(3) { grid-column: 5; }
.pipeline::before,
.pipeline::after {
  content: "";
  grid-row: 1;
  height: 1px;
  width: clamp(24px, 6vw, 80px);
  background: linear-gradient(90deg, var(--cyan), var(--green));
}
.pipeline::before { grid-column: 2; }
.pipeline::after { grid-column: 4; }
.stage-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
}
.stage-title { font-family: var(--font-display); font-size: 1.12rem; font-weight: 600; }
.stage-core {
  border: 1px solid rgba(23, 199, 255, 0.4);
  border-radius: 14px;
  padding: 18px 20px;
  background: rgba(2, 5, 9, 0.45);
  box-shadow: 0 0 40px rgba(23, 199, 255, 0.08);
}

.legend {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
  margin: calc(-1 * clamp(40px, 6vh, 64px) + 20px) 0 clamp(40px, 6vh, 64px);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.legend li { display: inline-flex; align-items: center; gap: 10px; }
.legend-title {
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 0.16em;
}
.swatch { width: 22px; height: 3px; border-radius: 2px; }
.swatch-clear { background: var(--cyan); box-shadow: 0 0 8px rgba(23, 199, 255, 0.6); }
.swatch-response { background: var(--green); box-shadow: 0 0 8px rgba(65, 230, 173, 0.6); }
.swatch-obfuscated {
  background: repeating-linear-gradient(90deg, #a66bff 0 3px, transparent 3px 5px, #7448c2 5px 7px, transparent 7px 9px);
  box-shadow: 0 0 8px rgba(166, 107, 255, 0.45);
}

.benefits {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
  max-width: 1000px;
}
/* The benefits list is also a camera stop (the output end of the model):
   leave scroll room after it so the view can settle there before Security. */
.has-js #blind-processing { padding-bottom: 45vh; }
.benefits li {
  display: grid;
  gap: 8px;
  padding-top: 18px;
  border-top: 1px solid var(--line-strong);
}
.benefits p { color: var(--muted); font-size: 0.98rem; }

/* 04 · Deployment */
.deploy-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.deploy { padding: 30px; display: grid; gap: 10px; align-content: start; }
.deploy p:not([class]) { color: var(--muted); }
.deploy-sub { color: var(--accent-soft); font-weight: 500; }
.deploy-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  justify-self: start;
  margin-bottom: 8px;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
}
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); }
.dot-ice { background: var(--ice); }
.dot-green { background: var(--green); }

/* 05 · Engine */
.engine-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}
.specs { margin: 0; padding: 8px 28px; }
.specs > div {
  display: grid;
  grid-template-columns: 9.5rem minmax(0, 1fr);
  gap: 16px;
  padding-block: 18px;
}
.specs > div + div { border-top: 1px solid var(--line); }
.specs dt {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green);
  padding-top: 3px;
}
.specs dd { margin: 0; color: var(--muted); }
code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  color: var(--text);
}
.engine-side { display: grid; gap: 16px; }
.stat { margin: 0; padding: 24px; display: grid; gap: 10px; }
.stat-value {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--accent-soft);
}
.stat-value span { color: var(--text); font-size: 0.5em; letter-spacing: -0.01em; }
.stat figcaption { color: var(--muted); font-size: 0.95rem; }
.stat strong { color: var(--text); font-weight: 600; }
.terminal { margin: 0; padding: 22px 24px; min-width: 0; }
.terminal figcaption {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 14px;
}
.terminal pre {
  margin: 0;
  overflow-x: auto;
  font-size: 0.9rem;
  line-height: 1.9;
}
.prompt { color: var(--accent); user-select: none; -webkit-user-select: none; }

/* 06 · Uses */
.uses-heading {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 16px;
}
.uses {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.uses + .uses-heading { margin-top: clamp(40px, 6vh, 56px); }
.uses-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.use h4 { font-size: 1.2rem; line-height: 1.25; }
.use { padding: 26px; display: grid; gap: 10px; align-content: start; }
.use p { color: var(--muted); font-size: 0.98rem; }
.use-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-soft);
  margin-bottom: 18px;
}

/* 07 · Contact */
.contact { padding-block: clamp(120px, 24vh, 260px) clamp(96px, 16vh, 180px); }
.contact-card {
  display: grid;
  gap: 22px;
  max-width: 820px;
}
.contact-card .actions { margin-top: 8px; }

.site-footer {
  border-top: 1px solid var(--line);
  background: rgb(3 7 13 / 10%);
  padding-block: 36px calc(36px + env(safe-area-inset-bottom));
  color: var(--dim);
  font-size: 0.9rem;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 32px;
}
.brand-footer { color: var(--text); font-size: 1rem; }
.copyright { margin-left: auto; }

/* ------------------------------------------------------------------ */
/* Responsive                                                          */

@media (max-width: 1100px) {
  .uses { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .uses-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .engine-grid { grid-template-columns: 1fr; }
  .engine-side { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .deploy-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 820px) {
  .compare,
  .feature-grid,
  .pillars,
  .deploy-grid,
  .engine-side,
  .uses-3,
  .benefits { grid-template-columns: 1fr; }
  .benefits { gap: 24px; }
  .pipeline {
    grid-template-columns: 1fr;
    justify-items: stretch;
    gap: 0;
  }
  .pipeline::before,
  .pipeline::after { display: none; }
  .pipeline .stage:nth-child(n) { grid-column: 1; }
  .pipeline .stage + .stage { margin-top: 28px; position: relative; }
  .pipeline .stage + .stage::before {
    content: "";
    position: absolute;
    left: 50%;
    top: -24px;
    width: 1px;
    height: 20px;
    background: linear-gradient(180deg, var(--cyan), var(--green));
  }
  .copyright { margin-left: 0; }
}

@media (max-width: 560px) {
  .uses { grid-template-columns: 1fr; }
  .compare-card, .feature, .pillar, .deploy, .use { padding: 22px; }
  .specs { padding: 4px 20px; }
  .specs > div { grid-template-columns: 1fr; gap: 6px; }
  .actions .btn { flex: 1 1 auto; }
}

/* ------------------------------------------------------------------ */
/* Reveal on scroll (only once JS has opted in with .reveal)           */

[data-reveal] {
  transition: opacity 0.9s ease, transform 0.9s var(--ease);
}
.reveal [data-reveal]:not(.is-visible) {
  opacity: 0;
  transform: translateY(18px);
}
@media (prefers-reduced-motion: reduce) {
  .reveal [data-reveal]:not(.is-visible) { transform: none; }
  [data-reveal] { transition: opacity 0.3s linear; }
}

/* Hero entrance: CSS-only, so it never waits on the script. */
@media (prefers-reduced-motion: no-preference) {
  .hero-copy > * { animation: rise 1s var(--ease) both; }
  .hero-copy > :nth-child(2) { animation-delay: 0.08s; }
  .hero-copy > :nth-child(3) { animation-delay: 0.16s; }
  .hero-copy > :nth-child(4) { animation-delay: 0.24s; }
  .hero-copy > :nth-child(5) { animation-delay: 0.32s; }
}
@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

/* ------------------------------------------------------------------ */
/* ?debug overlay                                                      */

.debug-overlay {
  position: fixed;
  right: 12px;
  bottom: 12px;
  z-index: 50;
  padding: 8px 10px;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.75);
  color: #9ef0c8;
  font: 11px/1.5 var(--font-mono);
  white-space: pre;
  cursor: copy;
  user-select: none;
  -webkit-user-select: none;
}
.debug-overlay:hover { background: rgba(0, 0, 0, 0.88); }
.debug-overlay[data-flash]::after {
  content: attr(data-flash);
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  border-radius: inherit;
  background: rgba(0, 0, 0, 0.9);
  color: #9ef0c8;
  font-weight: 600;
}

@media print {
  .world-poster, .world-canvas, .world-scrim, .scroll-cue, .nav-toggle { display: none; }
  body { background: #fff; color: #000; }
  .site-header { position: static; }
}