/* AythurOS Website — deliberately distinct from unfinished product UI.
 * Typographic presentation and ornamental geometry are not official logo assets.
 */
:root {
  color-scheme: light;
  --paper: #f4f2ed;
  --paper-rgb: 244, 242, 237;
  --ink: #18212a;
  --ink-soft: #323e49;
  --muted: #64717c;
  --line: #d7d9d7;
  --panel: #ebe9e4;
  --card: #faf9f6;
  --accent: #74529e;
  --accent-light: #a68ac4;
  --button-ink: #ffffff;
  --focus: #9c5af5;
  --dark-panel: #101822;
  --dark-panel-2: #172334;
  --shadow: 0 32px 80px rgba(19, 28, 45, 0.09);
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: Iowan Old Style, Baskerville, "Palatino Linotype", Palatino, Georgia, serif;
  --site-width: 1320px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --paper: #0e151e;
    --paper-rgb: 14, 21, 30;
    --ink: #f6f4f0;
    --ink-soft: #d6dce2;
    --muted: #abb5c1;
    --line: #344352;
    --panel: #172330;
    --card: #192633;
    --accent: #c3a3e9;
    --accent-light: #9f85bf;
    --button-ink: #161421;
    --focus: #c4a4ff;
    --shadow: 0 30px 80px rgba(0, 0, 0, 0.2);
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #0e151e;
  --paper-rgb: 14, 21, 30;
  --ink: #f6f4f0;
  --ink-soft: #d6dce2;
  --muted: #abb5c1;
  --line: #344352;
  --panel: #172330;
  --card: #192633;
  --accent: #c3a3e9;
  --accent-light: #9f85bf;
  --button-ink: #161421;
  --focus: #c4a4ff;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.2);
}

:root[data-theme="light"] {
  color-scheme: light;
  --paper: #f4f2ed;
  --paper-rgb: 244, 242, 237;
  --ink: #18212a;
  --ink-soft: #323e49;
  --muted: #64717c;
  --line: #d7d9d7;
  --panel: #ebe9e4;
  --card: #faf9f6;
  --accent: #74529e;
  --accent-light: #a68ac4;
  --button-ink: #ffffff;
  --focus: #9c5af5;
  --shadow: 0 32px 80px rgba(19, 28, 45, 0.09);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
::selection { background: rgba(158, 119, 210, 0.34); }
a { color: inherit; }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 5px;
  border-radius: 3px;
}
button { font: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.08; letter-spacing: -0.045em; font-weight: 550; }
h1 em, h2 em, h3 em {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.06em;
}
p { color: var(--ink-soft); }
strong { font-weight: 650; }
.section-shell { max-width: var(--site-width); padding-inline: clamp(22px, 5.4vw, 92px); margin-inline: auto; }
.section-space { padding-block: clamp(86px, 10vw, 150px); }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; z-index: 1000; left: 20px; top: 12px;
  background: var(--ink); color: var(--paper);
  padding: 11px 18px; transform: translateY(-180%);
  border-radius: 6px; font-weight: 650;
}
.skip-link:focus { transform: translateY(0); }

/* Site furniture */
.site-header {
  position: relative; z-index: 50; border-bottom: 1px solid var(--line);
  background: rgba(var(--paper-rgb), 0.92);
  backdrop-filter: blur(18px);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 28px; min-height: 88px;
}
.site-brand { display: flex; flex-direction: column; flex: none; text-decoration: none; line-height: 1.1; }
.brand-word { display: block; font-size: 1.5rem; letter-spacing: -0.075em; font-weight: 750; color: var(--ink); }
.brand-publisher { display: block; font-size: .64rem; text-transform: uppercase; letter-spacing: .17em; color: var(--muted); margin-top: 6px; }
.desktop-nav { display: flex; align-items: center; gap: clamp(15px, 2vw, 34px); margin-left: auto; }
.desktop-nav a { text-decoration: none; color: var(--muted); font-size: .83rem; font-weight: 550; transition: color 180ms ease; white-space: nowrap; }
.desktop-nav a:hover, .desktop-nav a[aria-current="page"] { color: var(--ink); }
.desktop-nav a[aria-current="page"] { text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 11px; text-decoration-thickness: 2px; }
.nav-external span { font-size: .82rem; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.theme-toggle {
  display: flex; align-items: center; gap: 8px; border: 1px solid var(--line);
  border-radius: 100px; background: transparent; color: var(--ink);
  padding: 9px 12px; font-size: .76rem; cursor: pointer; min-width: 79px;
  transition: background-color 180ms ease;
}
.theme-toggle:hover { background: var(--panel); }
.theme-symbol { font-size: 1.05rem; line-height: 1; }
.mobile-navigation { display: none; }

.eyebrow {
  font-size: .68rem; font-weight: 740; letter-spacing: .22em; text-transform: uppercase;
  color: var(--muted); line-height: 1.5;
}
.lead { font-size: clamp(1.13rem, 1.8vw, 1.4rem); max-width: 650px; line-height: 1.7; color: var(--ink-soft); }
.action-row { display: flex; flex-wrap: wrap; align-items: center; gap: 27px; margin-top: 34px; }
.button {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 26px; min-height: 52px; border-radius: 4px;
  padding: 14px 23px; font-size: .86rem; font-weight: 670;
  text-decoration: none; transition: transform 180ms ease, background 180ms ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--ink); color: var(--paper); }
.button-primary:hover { background: var(--accent); color: var(--button-ink); }
.button-outline { color: #f4f5f7; border: 1px solid #5a6c82; background: transparent; }
.button-outline:hover { background: #26374c; }
.text-link { font-size: .86rem; text-decoration: none; font-weight: 650; border-bottom: 1px solid var(--accent); padding-bottom: 6px; }
.text-link span, .underlined-link span { display: inline-block; margin-left: 8px; }
.text-link:hover span, .underlined-link:hover span { transform: translate(3px, -2px); }
.underlined-link { display: inline-flex; align-items: center; font-weight: 670; font-size: .91rem; text-decoration: none; border-bottom: 1px solid currentColor; padding-bottom: 6px; }
.underlined-link span { transition: transform 180ms; }

/* Home hero */
.hero {
  display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  min-height: min(780px, 82vh); min-height: 700px;
  align-items: center; gap: 12px; padding-block: 78px 96px;
}
.hero-copy { position: relative; z-index: 2; }
.hero .eyebrow { display: flex; align-items: center; gap: 12px; margin-bottom: 36px; }
.status-spark { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: #a887c8; box-shadow: 0 0 0 6px rgba(168, 135, 200, .13); }
.display-title {
  font-size: clamp(4.4rem, 7.8vw, 8.5rem); letter-spacing: -0.085em;
  line-height: .99; margin-bottom: 35px; white-space: nowrap;
}
.display-title em { color: var(--accent); }
.hero-lead { max-width: 545px; font-size: clamp(1.06rem, 1.5vw, 1.31rem); color: var(--ink-soft); line-height: 1.75; }
.fineprint { display: flex; gap: 10px; align-items: center; font-size: .76rem; margin-top: 36px; color: var(--muted); max-width: 500px; }
.dot { display: inline-block; width: 7px; height: 7px; flex: none; background: #b48c58; border-radius: 50%; }
.hero-art { position: relative; height: 550px; isolation: isolate; overflow: hidden; }
.hero-art::before {
  content: ""; position: absolute; width: 390px; height: 390px; border-radius: 50%;
  background: radial-gradient(circle, rgba(162, 120, 219, .3) 0, rgba(128, 100, 170, .10) 34%, transparent 65%);
  inset: 50% auto auto 50%; transform: translate(-50%, -50%); filter: blur(10px); z-index: -1;
}
.art-orbit { position: absolute; inset: 50% auto auto 50%; border: 1px solid rgba(147, 137, 169, .46); border-radius: 50%; transform: translate(-50%, -50%) rotate(-24deg); }
.orbit-outer { width: 462px; height: 462px; }
.orbit-inner { width: 352px; height: 352px; border-color: rgba(138, 123, 164, .34); }
.art-orbit::before { content: ""; width: 9px; height: 9px; position: absolute; top: 13%; left: 15%; border-radius: 50%; background: #b89ede; box-shadow: 0 0 20px #b89ede; }
.art-horizon {
  width: 345px; height: 345px; position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%) rotate(-35deg); border-radius: 50%;
  border: 1px solid rgba(203, 175, 121, .55);
  background: conic-gradient(from 235deg, transparent 0deg, rgba(201, 169, 116, .14) 45deg, transparent 140deg, rgba(159, 131, 194, .12) 230deg, transparent 330deg);
}
.art-core {
  width: 235px; height: 235px; position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%); border-radius: 50%; overflow: hidden;
  background:
    radial-gradient(circle at 68% 28%, #d7bedf 0, #9879b3 25%, transparent 53%),
    radial-gradient(circle at 32% 83%, #14273c 0, #203652 28%, #6e5c93 66%, #baa1c7 100%);
  box-shadow: inset -20px -20px 42px rgba(11, 18, 32, .42), 0 25px 100px rgba(121, 94, 151, .28);
}
.art-core::before { content: ""; position: absolute; inset: 0; border-radius: inherit; background: linear-gradient(120deg, transparent 28%, rgba(255,255,255,.43) 49%, transparent 54%); opacity: .35; }
.art-glow { width: 490px; height: 90px; border-radius: 50%; border-top: 1px solid rgba(140, 109, 175, .3); position: absolute; left: 50%; bottom: 33px; transform: translateX(-50%); filter: blur(1px); }
.art-coordinate { position: absolute; font-size: .58rem; letter-spacing: .23em; font-weight: 670; color: var(--muted); }
.art-top { top: 30px; left: 20px; }
.art-bottom { bottom: 20px; left: 24px; }
.art-right { right: 14px; top: 50%; writing-mode: vertical-rl; }
.principle-strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.strip-inner { min-height: 90px; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.strip-inner span { font-size: .77rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); white-space: nowrap; }
.strip-inner strong { color: var(--ink); font-size: 1.12rem; margin-right: 8px; letter-spacing: -.03em; }
.strip-inner .strip-divider { display: block; width: 1px; height: 18px; background: var(--line); flex: none; }

/* Products */
.section-heading {
  display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
  align-items: end; column-gap: 80px; margin-bottom: 55px;
}
.section-heading h2, .dark-feature h2, .section-cta h2 {
  font-size: clamp(2.9rem, 4.9vw, 5.4rem); margin: 0;
}
.section-heading p:not(.eyebrow) { font-size: 1.02rem; max-width: 385px; color: var(--muted); line-height: 1.85; margin-bottom: 6px; }
.section-heading .eyebrow { margin-bottom: 22px; }
.product-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 23px; }
.product-card { overflow: hidden; position: relative; min-width: 0; border-radius: 5px; }
.aether-card { color: #172531; background: #d8d4cb; }
.void-card { color: #f6efff; background: #1d213b; }
.product-card-head { display: flex; align-items: center; justify-content: space-between; position: absolute; inset: 28px 29px auto; z-index: 2; }
.card-index { letter-spacing: .14em; font-size: .62rem; font-weight: 780; }
.card-symbol { font-size: 1.4rem; font-weight: 300; }
.preview { height: clamp(270px, 30vw, 395px); overflow: hidden; position: relative; }
.preview-desktop { background: radial-gradient(ellipse at 60% 60%, #e1d7bc, transparent 43%), linear-gradient(145deg, #c7c8c1, #9aa5aa 78%, #768698); }
.preview-wallpaper { position: absolute; width: 400px; height: 330px; border-radius: 50%; border: 1px solid rgba(248,239,218,.7); left: 45%; top: 10%; transform: rotate(-24deg); }
.preview-wallpaper::after { content: ""; position: absolute; inset: 40px; border-radius: 50%; background: radial-gradient(ellipse at 20% 40%, rgba(245, 222, 187, .8), transparent 70%); }
.preview-window { border: 1px solid rgba(244, 243, 239, .76); border-radius: 9px; background: rgba(250, 248, 245, .69); backdrop-filter: blur(13px); box-shadow: 0 12px 30px rgba(50,63,73,.17); position: absolute; overflow: hidden; }
.window-back { width: 63%; height: 58%; top: 23%; right: 6%; transform: rotate(3deg); }
.window-front { width: 68%; height: 62%; bottom: -2%; left: 9%; }
.preview-dots { display: flex; gap: 5px; padding: 13px 14px; border-bottom: 1px solid rgba(113, 126, 137, .19); }
.preview-dots i { display: block; width: 5px; height: 5px; background: #a2a7aa; border-radius: 50%; }
.preview-rows { padding: 16px; display: grid; gap: 10px; }
.preview-rows b { height: 10px; background: rgba(145,153,157,.24); border-radius: 3px; width: 68%; }
.preview-rows b:nth-child(2) { width: 86%; }
.preview-rows b:nth-child(3) { width: 50%; }
.preview-layout { display: grid; grid-template-columns: 1fr 1.3fr; gap: 12px; height: 75%; padding: 15px; }
.preview-layout div { background: linear-gradient(140deg, #9baeb8, #e8ddd0); border-radius: 4px; }
.preview-layout div:nth-child(2) { background: linear-gradient(140deg, #b8abc0, #e9d9cc); }
.preview-dock { display: flex; justify-content: center; align-items: center; gap: 9px; position: absolute; bottom: 13px; left: 50%; transform: translateX(-50%); width: 160px; height: 32px; border: 1px solid rgba(255,255,255,.56); border-radius: 8px; background: rgba(233,235,235,.68); box-shadow: 0 7px 18px rgba(42,49,70,.12); }
.preview-dock i { width: 18px; height: 18px; border-radius: 5px; background: #8399b0; }
.preview-dock i:nth-child(2) { background: #b4a1bc; }
.preview-dock i:nth-child(3) { background: #c9ae87; }
.preview-dock i:nth-child(4) { background: #8a9b91; }
.preview-dock i:nth-child(5) { background: #989fc6; }
.preview-mobile { background: radial-gradient(ellipse at 50% 55%, #554d8b, transparent 52%), linear-gradient(145deg, #262b50, #171a2b); }
.mobile-ambient { width: 350px; height: 350px; border-radius: 50%; border: 1px solid rgba(183,175,233,.24); position: absolute; top: 15%; left: 50%; transform: translateX(-50%) rotate(-30deg); box-shadow: 0 0 100px rgba(111,95,162,.34); }
.phone-outline, .void-screen { position: absolute; border: 5px solid #0b1120; border-radius: 31px; background: linear-gradient(152deg,#342b5d,#171d38 55%,#0a1220); box-shadow: 15px 19px 28px rgba(2,6,17,.42); overflow: hidden; }
.phone-outline { top: 19%; left: 50%; transform: translateX(-50%) rotate(-7deg); width: 166px; height: 304px; }
.phone-speaker, .void-speaker { position: absolute; width: 47px; height: 9px; top: 8px; left: 50%; transform: translateX(-50%); background: #0b1120; border-radius: 12px; z-index: 2; }
.phone-time, .void-clock { position: absolute; top: 27px; left: 17px; font-size: 12px; font-weight: 750; color: white; }
.phone-sphere, .void-light { width: 172px; height: 172px; border-radius: 50%; background: radial-gradient(circle at 60% 27%, #c9b2e6, #826aad 24%, #46477e 49%, transparent 70%); position: absolute; top: 54px; left: 22px; filter: blur(2px); }
.phone-widgets, .void-widget-row { position: absolute; left: 16px; right: 16px; top: 167px; display: flex; gap: 6px; }
.phone-widgets b, .void-widget-row i { height: 43px; flex: 1; background: rgba(205, 196, 241, .22); backdrop-filter: blur(5px); border: 1px solid rgba(223,210,255,.25); border-radius: 9px; }
.phone-apps, .void-launcher { position: absolute; left: 16px; right: 16px; bottom: 21px; display: flex; gap: 8px; justify-content: space-around; }
.phone-apps i, .void-launcher i { width: 21px; height: 21px; border-radius: 7px; background: #b6a0d6; box-shadow: 0 2px 12px rgba(180, 164, 233, .25); }
.phone-apps i:nth-child(2), .void-launcher i:nth-child(2) { background: #c3b8dc; }
.phone-apps i:nth-child(3), .void-launcher i:nth-child(3) { background: #717cba; }
.phone-apps i:nth-child(4), .void-launcher i:nth-child(4) { background: #d2b5bd; }
.phone-home-indicator, .void-indicator { position: absolute; bottom: 6px; height: 3px; width: 42px; left: 50%; transform: translateX(-50%); background: #eee8f4; border-radius: 4px; opacity: .7; }
.product-card-body { padding: 39px 40px 45px; min-height: 317px; }
.product-label { text-transform: uppercase; color: inherit; opacity: .68; font-size: .62rem; font-weight: 740; letter-spacing: .2em; }
.product-card h3 { font-size: clamp(2.9rem, 4.3vw, 4.5rem); margin: 19px 0 23px; }
.product-card h3 em { color: inherit; opacity: .68; }
.product-card p:not(.product-label) { color: inherit; opacity: .78; max-width: 390px; font-size: .96rem; line-height: 1.75; }
.product-card .underlined-link { margin-top: 20px; }
.visual-note { font-size: .76rem; color: var(--muted); text-align: right; margin-top: 18px; }

/* Platform feature */
.dark-feature { background: #111b2a; color: #f3efe9; border-block: 1px solid rgba(214,225,235,.08); overflow: hidden; }
.dark-feature-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: center; padding-block: clamp(95px, 12vw, 150px); }
.dark-feature .eyebrow { color: #a3aec2; }
.dark-feature h2 { color: #fff; margin-bottom: 32px; }
.dark-feature p:not(.eyebrow) { color: #b9c4cf; max-width: 440px; font-size: 1.07rem; line-height: 1.8; }
.dark-feature .button { margin-top: 18px; }
.system-graphic { max-width: 510px; min-height: 430px; position: relative; display: flex; flex-direction: column; justify-content: center; gap: 14px; }
.graphic-layer {
  position: relative; display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 25px 27px; border: 1px solid rgba(164,183,202,.28); border-radius: 5px;
  background: linear-gradient(105deg,rgba(89,114,149,.19),rgba(28,39,58,.8)); box-shadow: 0 6px 20px rgba(0,0,0,.12);
}
.graphic-layer span { font-size: .6rem; font-weight: 740; letter-spacing: .14em; color: #8797ad; }
.graphic-layer strong { color: #f5f2fc; font-size: .96rem; font-weight: 550; }
.layer-experience { border-color: rgba(184,151,212,.55); background: linear-gradient(110deg,rgba(109,78,160,.35),rgba(26,41,70,.8)); }
.layer-flow { margin-inline: 17px; }
.layer-runtime { margin-inline: 34px; }
.layer-kernel { margin-inline: 51px; }
.graphic-stem { position: absolute; width: 1px; bottom: -40px; top: -40px; left: 50%; z-index: -1; background: linear-gradient(#9d91c5,transparent); }

/* Principles */
.values-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.values-grid article { min-height: 215px; padding: 29px 29px 20px 0; border-bottom: 1px solid var(--line); }
.values-grid article:not(:nth-child(3n+1)) { padding-left: 29px; border-left: 1px solid var(--line); }
.value-index { font-size: .69rem; font-weight: 680; color: var(--accent); letter-spacing: .07em; }
.values-grid h3 { font-size: 1.65rem; letter-spacing: -.045em; margin: 29px 0 13px; }
.values-grid p { color: var(--muted); font-size: .88rem; max-width: 300px; }
.section-cta { position: relative; overflow: hidden; padding-bottom: 140px; }
.cta-inner { position: relative; overflow: hidden; padding: clamp(50px, 8vw, 96px); background: var(--panel); border-radius: 5px; }
.cta-inner .eyebrow, .cta-inner h2, .cta-inner p:not(.eyebrow), .cta-inner .action-row { position: relative; z-index: 2; }
.cta-inner h2 { margin-bottom: 24px; }
.cta-inner p:not(.eyebrow) { font-size: 1rem; max-width: 580px; color: var(--muted); }
.cta-accent { position: absolute; right: 3%; bottom: 7%; font-family: var(--serif); font-size: clamp(15rem, 31vw, 35rem); line-height: 1; letter-spacing: -.16em; opacity: .045; pointer-events: none; user-select: none; }

/* Internal page hero / visual */
.subhero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .91fr); align-items: center; gap: 60px; min-height: 710px; padding-block: 80px 95px; }
.subhero-copy h1, .simple-hero h1 { font-size: clamp(3.7rem, 6vw, 6.6rem); letter-spacing: -.07em; margin: 22px 0 38px; }
.subhero-copy h1 em, .simple-hero h1 em { color: var(--accent); }
.subhero-copy .lead { max-width: 555px; }
.subhero-image { width: 100%; height: 485px; overflow: hidden; position: relative; border-radius: 4px; }
.subhero-aether { background: radial-gradient(circle at 55% 38%, #ded1bd, transparent 45%), linear-gradient(145deg,#c7ccd0,#6c8295); }
.subhero-aether-ring { border: 1px solid rgba(255,249,233,.65); width: 400px; height: 400px; border-radius: 50%; position: absolute; top: -35px; left: 19%; }
.subhero-window { width: 80%; height: 60%; position: absolute; top: 25%; left: 12%; background: rgba(250,251,248,.83); border: 1px solid rgba(255,255,255,.8); box-shadow: 0 34px 90px rgba(43,58,76,.22); border-radius: 11px; backdrop-filter: blur(12px); transform: rotate(-4deg); overflow: hidden; }
.subhero-window-bar { height: 42px; display: flex; align-items: center; gap: 7px; padding-inline: 19px; border-bottom: 1px solid #dce0e0; }
.subhero-window-bar i { width: 8px; height: 8px; border-radius: 50%; background: #bac4ca; }
.subhero-window-content { height: calc(100% - 42px); display: grid; grid-template-columns: 25% 75%; }
.window-sidebar { background: #e4e8e7; padding: 25px 14px; }
.window-sidebar b { display: block; height: 9px; width: 75%; border-radius: 5px; background: #a7b5c0; margin-bottom: 17px; }
.window-sidebar b:nth-child(2) { width: 95%; }
.window-canvas { padding: 28px 24px; display: flex; gap: 12px; }
.window-canvas span { height: 62%; flex: 1; background: linear-gradient(140deg,#99afc3,#e0cbc1); border-radius: 5px; }
.window-canvas span:nth-child(2) { background: linear-gradient(140deg,#c1afc6,#cdd5d9); height: 81%; }
.window-canvas span:nth-child(3) { background: linear-gradient(140deg,#dabfa5,#cad1cb); height: 48%; }
.subhero-void { background: radial-gradient(circle at center,#49437a,transparent 67%),linear-gradient(155deg,#20253e,#0c1020); }
.void-orbit { position: absolute; width: 420px; height: 420px; top: 6%; left: 10%; border: 1px solid rgba(204,180,249,.25); border-radius: 50%; }
.orbit-two { width: 330px; height: 330px; top: 16%; left: 20%; }
.void-screen { width: 216px; height: 415px; top: 10%; left: 50%; transform: translateX(-50%) rotate(6deg); border-width: 7px; border-radius: 43px; }
.void-speaker { top: 10px; width: 55px; }
.void-clock { top: 36px; left: 21px; font-size: 14px; }
.void-light { top: 80px; width: 245px; height: 220px; left: 18px; }
.void-widget-row { top: 240px; left: 21px; right: 21px; }
.void-widget-row i { height: 57px; }
.void-launcher { bottom: 32px; left: 22px; right: 22px; gap: 11px; }
.void-launcher i { width: 28px; height: 28px; border-radius: 9px; }
.void-indicator { bottom: 8px; width: 51px; }
.subhero-caption { position: absolute; bottom: 19px; left: 24px; font-size: .55rem; letter-spacing: .16em; color: #fff; font-weight: 650; text-shadow: 0 1px 8px rgba(0,0,0,.5); }
.detail-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.detail-tile { border-top: 1px solid var(--ink); padding: 26px 13px 22px 0; }
.detail-tile span { display: block; font-size: .66rem; letter-spacing: .17em; color: var(--muted); font-weight: 700; margin-bottom: 38px; }
.detail-tile h3 { font-size: clamp(1.6rem, 2.3vw, 2.3rem); margin-bottom: 20px; }
.detail-tile p { font-size: .94rem; color: var(--muted); line-height: 1.8; }
.statement { padding-block: clamp(90px, 11vw, 150px); border-top: 1px solid var(--line); }
.statement h2 { font-size: clamp(2.8rem, 5vw, 5.1rem); max-width: 870px; margin: 20px 0 28px; }
.statement p:not(.eyebrow) { font-size: 1.08rem; max-width: 710px; color: var(--muted); line-height: 1.85; }
.statement .underlined-link { margin-top: 18px; }
.simple-hero { padding-top: clamp(102px, 13vw, 170px); padding-bottom: clamp(65px, 9vw, 130px); border-bottom: 1px solid var(--line); }
.simple-hero .lead { max-width: 720px; margin-top: 30px; }
.architecture-section { padding-top: 110px; }
.architecture-map { background: #131e2b; color: #f5f5f1; padding: clamp(27px, 5vw, 75px); border-radius: 5px; display: flex; flex-direction: column; align-items: stretch; gap: 10px; }
.architecture-products { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.architecture-products div { background: linear-gradient(130deg,rgba(131,110,170,.36),rgba(46,70,100,.45)); border: 1px solid #56657e; border-radius: 4px; padding: 24px; font-size: 1.5rem; font-weight: 650; letter-spacing: -.04em; }
.architecture-products small { display: block; font-size: .65rem; color: #abb6cc; letter-spacing: .15em; margin-top: 3px; }
.architecture-arrow { align-self: center; font-size: 1.5rem; color: #98a9ba; line-height: 1; padding: 4px; }
.architecture-band { display: flex; justify-content: space-between; align-items: center; gap: 30px; padding: 18px 27px; background: #273b50; border: 1px solid #4a6176; border-radius: 4px; }
.architecture-band span { font-size: .65rem; color: #b7c4d3; letter-spacing: .16em; font-weight: 700; }
.architecture-band strong { text-align: right; font-weight: 650; letter-spacing: -.03em; }
.band-flow { background: #3f385c; border-color: #75698b; }
.band-services { background: #324054; }
.band-runtime { background: #2a394a; }
.band-kernel { background: #223040; }
.band-boot { background: #1b2936; }
.detail-grid-four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.detail-grid-four .detail-tile h3 { font-size: 1.9rem; }

/* Project status */
.compact-top { padding-top: 60px; }
.release-notice { border: 1px solid var(--line); background: var(--card); display: flex; gap: 24px; padding: 28px 32px; border-left: 3px solid var(--accent); margin-bottom: 70px; }
.notice-icon { width: 29px; height: 29px; display: grid; place-items: center; border: 1px solid var(--accent); border-radius: 50%; flex: none; color: var(--accent); font-style: italic; font-family: var(--serif); }
.release-notice strong { font-size: 1.02rem; }
.release-notice p { font-size: .89rem; max-width: 740px; color: var(--muted); margin: 9px 0 0; }
.milestone-list { border-top: 1px solid var(--line); }
.milestone-list article { display: grid; grid-template-columns: 235px 1fr; gap: 50px; padding: 45px 0; border-bottom: 1px solid var(--line); }
.milestone-meta { display: flex; flex-direction: column; align-items: flex-start; gap: 13px; }
.milestone-number { font-family: var(--serif); color: var(--accent); font-size: 2.4rem; line-height: 1; }
.status-label { letter-spacing: .13em; font-weight: 700; font-size: .66rem; padding: 6px 9px; border: 1px solid var(--line); border-radius: 3px; color: var(--muted); }
.milestone-list h2 { font-size: clamp(2rem, 3.1vw, 3.1rem); margin-bottom: 18px; }
.milestone-list p { font-size: .99rem; max-width: 650px; color: var(--muted); }

/* About and privacy */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; padding-block: 80px 145px; }
.about-card { border-top: 1px solid var(--line); padding: 34px 24px 48px 0; }
.about-card h2 { font-size: clamp(2.3rem, 3.4vw, 3.4rem); margin: 37px 0 25px; }
.about-card p { max-width: 450px; color: var(--muted); line-height: 1.85; }
.prose-section { padding-block: 65px 150px; max-width: 900px; margin-inline: auto; }
.prose-section h2 { font-size: 1.8rem; margin: 45px 0 14px; }
.prose-section p { max-width: 720px; line-height: 1.85; color: var(--muted); }
.prose-section .underlined-link { margin-top: 25px; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 73px 0 28px; background: var(--panel); }
.footer-top { display: grid; grid-template-columns: 1.7fr .7fr .8fr; gap: 50px; padding-bottom: 80px; }
.footer-brand .brand-word { font-size: 2rem; }
.footer-brand p { font-size: 1.55rem; letter-spacing: -.06em; margin: 28px 0 6px; color: var(--ink); }
.footer-brand > span:last-child { font-size: .82rem; color: var(--muted); }
.footer-links { display: flex; flex-direction: column; align-items: flex-start; gap: 13px; }
.footer-links h2 { letter-spacing: .15em; font-size: .65rem; text-transform: uppercase; font-weight: 750; color: var(--muted); margin: 8px 0 16px; }
.footer-links a { font-size: .9rem; text-decoration: none; }
.footer-links a:hover { text-decoration: underline; text-underline-offset: 4px; }
.footer-bottom { border-top: 1px solid var(--line); padding-top: 23px; display: flex; justify-content: space-between; gap: 22px; font-size: .74rem; color: var(--muted); }

/* Responsive */
@media (max-width: 1190px) {
  .desktop-nav { gap: 18px; }
  .header-inner { gap: 18px; }
  .hero { min-height: 670px; }
  .display-title { font-size: clamp(4.2rem, 7.1vw, 7.8rem); }
  .hero-art { height: 480px; }
  .orbit-outer { width: 400px; height: 400px; }
  .orbit-inner { width: 310px; height: 310px; }
  .art-horizon { width: 300px; height: 300px; }
  .art-core { width: 210px; height: 210px; }
}
@media (max-width: 980px) {
  .desktop-nav { display: none; }
  .mobile-navigation { display: block; position: relative; }
  .mobile-navigation summary {
    display: flex; align-items: center; gap: 12px; cursor: pointer; list-style: none;
    padding: 9px 10px; font-size: .86rem; font-weight: 650; border: 1px solid var(--line); border-radius: 4px;
  }
  .mobile-navigation summary::-webkit-details-marker { display: none; }
  .menu-symbol { display: inline-block; width: 12px; height: 10px; border-top: 2px solid currentColor; border-bottom: 2px solid currentColor; }
  .mobile-navigation nav { display: flex; flex-direction: column; position: absolute; right: 0; top: 48px; min-width: 220px; background: var(--card); color: var(--ink); border: 1px solid var(--line); box-shadow: var(--shadow); padding: 14px; border-radius: 5px; z-index: 100; }
  .mobile-navigation nav a { padding: 10px 12px; text-decoration: none; font-size: .9rem; }
  .mobile-navigation nav a:hover, .mobile-navigation nav a[aria-current="page"] { background: var(--panel); }
  .hero { gap: 0; grid-template-columns: 1fr 0.7fr; }
  .display-title { font-size: clamp(3.85rem, 8vw, 6.2rem); }
  .hero-art { margin-right: 0; }
  .section-heading { gap: 40px; }
  .subhero { gap: 24px; min-height: 590px; }
  .subhero-image { height: 400px; }
  .dark-feature-inner { gap: 35px; }
  .graphic-layer { padding: 22px 18px; }
}
@media (max-width: 760px) {
  .header-inner { min-height: 75px; }
  .section-shell { padding-inline: 24px; }
  .hero { grid-template-columns: 1fr; padding-top: 83px; padding-bottom: 35px; min-height: auto; }
  .hero .eyebrow { margin-bottom: 25px; }
  .display-title { white-space: normal; font-size: clamp(4.0rem, 11.6vw, 6.1rem); }
  .hero-lead { max-width: 600px; }
  .fineprint { margin-top: 28px; }
  .hero-art { margin-right: 0; height: 355px; max-width: 480px; width: 100%; margin-inline: auto; }
  .orbit-outer { width: 325px; height: 325px; }
  .orbit-inner { width: 264px; height: 264px; }
  .art-horizon { width: 255px; height: 255px; }
  .art-core { width: 184px; height: 184px; }
  .art-coordinate { font-size: .52rem; }
  .strip-inner { gap: 8px; flex-wrap: wrap; justify-content: center; padding-block: 20px; }
  .strip-inner span { font-size: .64rem; }
  .strip-inner strong { font-size: .9rem; }
  .strip-inner .strip-divider { height: 15px; }
  .section-heading { display: block; margin-bottom: 42px; }
  .section-heading p:not(.eyebrow) { margin-top: 23px; max-width: 570px; }
  .product-grid { grid-template-columns: 1fr; gap: 20px; }
  .preview { height: 355px; }
  .product-card h3 { font-size: clamp(2.8rem, 9vw, 4rem); }
  .dark-feature-inner { display: block; }
  .system-graphic { margin: 70px auto 0; min-height: 370px; }
  .values-grid { grid-template-columns: 1fr 1fr; }
  .values-grid article, .values-grid article:not(:nth-child(3n+1)) { border-left: 0; padding-left: 0; padding-right: 20px; }
  .values-grid article:nth-child(2n) { border-left: 1px solid var(--line); padding-left: 22px; }
  .section-cta { padding-bottom: 100px; }
  .subhero { grid-template-columns: 1fr; padding-top: 80px; padding-bottom: 50px; }
  .subhero-image { max-width: 600px; width: 100%; height: 440px; }
  .detail-grid, .detail-grid-four { grid-template-columns: 1fr 1fr; }
  .detail-tile { border-top: 1px solid var(--line); }
  .architecture-section { padding-top: 75px; }
  .architecture-products div { padding: 18px; }
  .about-grid { padding-top: 50px; gap: 20px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; }
  .milestone-list article { grid-template-columns: 95px 1fr; gap: 25px; }
}
@media (max-width: 510px) {
  .section-shell { padding-inline: 20px; }
  .brand-word { font-size: 1.25rem; }
  .brand-publisher { font-size: .55rem; }
  .theme-toggle { padding-inline: 10px; min-width: 59px; }
  .theme-toggle [data-theme-label] { display: none; }
  .header-actions { gap: 7px; }
  .display-title { font-size: clamp(3.55rem, 12vw, 5rem); }
  .hero .eyebrow { letter-spacing: .14em; font-size: .61rem; }
  .action-row { gap: 22px; }
  .hero-art { height: 295px; }
  .orbit-outer { width: 290px; height: 290px; }
  .orbit-inner { width: 235px; height: 235px; }
  .art-horizon { width: 225px; height: 225px; }
  .art-core { width: 165px; height: 165px; }
  .art-top { top: 5px; }
  .art-bottom { bottom: 4px; }
  .art-right { right: 0; }
  .strip-inner { flex-direction: column; gap: 12px; align-items: flex-start; padding-block: 24px; }
  .strip-inner .strip-divider { display: none; }
  .section-heading h2, .dark-feature h2, .section-cta h2 { font-size: 2.8rem; }
  .product-card-body { padding: 33px 26px 39px; }
  .product-card-head { inset: 24px 23px auto; }
  .preview { height: 290px; }
  .visual-note { text-align: left; }
  .system-graphic { min-height: 325px; }
  .graphic-layer { flex-direction: column; align-items: flex-start; gap: 7px; padding: 15px 20px; }
  .graphic-layer span { font-size: .51rem; }
  .graphic-layer strong { font-size: .9rem; }
  .layer-flow { margin-inline: 10px; }
  .layer-runtime { margin-inline: 20px; }
  .layer-kernel { margin-inline: 30px; }
  .values-grid { display: block; }
  .values-grid article, .values-grid article:nth-child(2n) { border-left: 0; padding: 22px 0; min-height: 160px; }
  .values-grid h3 { margin-top: 17px; }
  .cta-inner { padding: 43px 25px; }
  .subhero-copy h1, .simple-hero h1 { font-size: clamp(3.2rem, 11vw, 4.1rem); }
  .subhero-image { height: 330px; }
  .subhero-window { width: 83%; }
  .void-screen { transform: translateX(-50%) rotate(6deg) scale(.78); transform-origin: top center; }
  .detail-grid, .detail-grid-four { display: block; }
  .detail-tile { padding-bottom: 22px; }
  .detail-tile span { margin-bottom: 23px; }
  .architecture-map { padding: 19px 14px; }
  .architecture-products { gap: 8px; }
  .architecture-products div { font-size: 1.25rem; padding: 16px; }
  .architecture-band { flex-direction: column; align-items: flex-start; gap: 6px; padding: 14px; }
  .architecture-band strong { text-align: left; font-size: .93rem; }
  .release-notice { padding: 21px 16px; gap: 12px; }
  .notice-icon { width: 24px; height: 24px; }
  .milestone-list article { grid-template-columns: 1fr; gap: 20px; }
  .milestone-meta { flex-direction: row; align-items: center; }
  .about-grid { display: block; }
  .about-card { padding-bottom: 34px; }
  .footer-top { gap: 40px 18px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { font-size: .72rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}
@media print {
  body { color: #000; background: #fff; }
  .site-header, .site-footer, .theme-toggle, .mobile-navigation, .hero-art, .preview, .subhero-image { display: none !important; }
  .section-shell { padding-inline: 0; }
  a { text-decoration: underline; }
}