/* One composition, two palettes. All theme differences live in these tokens. */
:root {
  color-scheme: dark;
  --bg: #080a0d;
  --surface: #0d1015;
  --surface-raised: #141820;
  --fg: #f1f2f5;
  --muted: #a3a8b4;
  --subtle: #7f8797;
  --line: #ffffff14;
  --line-strong: #ffffff26;
  --glass: #ffffff03;
  --header: #080a0dd9;
  --button: #edf0f5;
  --button-fg: #10131a;
  --accent: #bacbff;
  --accent-soft: #8baaff;
  --accent-wash: #7297ff12;
  --glow-blue: #6a8ffc;
  --glow-warm: #c2a394;
  --sphere: #111927;
  --sphere-center: #121c33;
  --orb-line: #c3c9e84d;
  --orb-bright: #dbe2ff;
  --orb-shadow: #05070c;
  --shadow: #00000040;
  --chart: #a1b7f4;
  --noise-opacity: .24;
  --logo-filter: brightness(0) invert(1);
  --font: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --mono: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
  --text-nav: 16px;
  --text-ui: 14px;
  --text-body: 15px;
  --text-meta: 12px;
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #fafafa;
  --surface: #f0f1f4;
  --surface-raised: #e5e8ee;
  --fg: #141821;
  --muted: #565d6b;
  --subtle: #6c7482;
  --line: #151d3015;
  --line-strong: #151d302a;
  --glass: #ffffff55;
  --header: #fafafad9;
  --button: #171c27;
  --button-fg: #fafafa;
  --accent: #385394;
  --accent-soft: #536fac;
  --accent-wash: #567ad313;
  --glow-blue: #a3b9ec;
  --glow-warm: #cebaa9;
  --sphere: #e1e7f1;
  --sphere-center: #c5d2e9;
  --orb-line: #5e709f4d;
  --orb-bright: #52638b;
  --orb-shadow: #d0d8e7;
  --shadow: #20324a18;
  --chart: #607aaf;
  --noise-opacity: .1;
  --logo-filter: brightness(0);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
body { margin: 0; background: var(--bg); color: var(--fg); font-family: var(--font); -webkit-font-smoothing: antialiased; line-height: 1.6; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button, a, input, select, textarea { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
button, input, select, textarea { color: inherit; }
button { border: 0; }
img, svg { display: block; }
button svg, a svg { width: 20px; height: 20px; flex-shrink: 0; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-weight: 500; line-height: 1.08; letter-spacing: -.055em; text-wrap: balance; }
p { color: var(--muted); }
::selection { background: var(--accent); color: var(--bg); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 6px; border-radius: 3px; }
[hidden] { display: none !important; }
.container { width: min(1184px, calc(100% - 112px)); margin-inline: auto; }
.section { padding-block: 88px; }
.eyebrow, .index { font-family: var(--mono); font-size: var(--text-meta); font-weight: 400; letter-spacing: .13em; color: var(--subtle); line-height: 1.7; }
.eyebrow { margin-bottom: 24px; }
.index { letter-spacing: .08em; }
.tiny-cross { color: var(--accent); padding-right: 10px; }
.glass { background: linear-gradient(140deg, var(--glass), transparent 75%), var(--surface); border: 1px solid var(--line); }
.text-link { display: inline-flex; align-items: center; gap: 16px; font-size: var(--text-ui); color: var(--fg); }
.text-link svg { transition: transform .2s; }
.text-link:hover svg { transform: translateX(4px); }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 24px; padding: 13px 22px; border-radius: 6px; font-size: var(--text-ui); font-weight: 500; line-height: 1.5; transition: box-shadow .2s, transform .2s, border-color .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--button); color: var(--button-fg); border: 1px solid var(--button); box-shadow: 0 2px 10px var(--shadow); }
.button-primary:hover { box-shadow: 0 0 28px var(--accent-wash); }
.button-glass { border: 1px solid var(--line-strong); background: var(--glass); backdrop-filter: blur(20px); color: var(--fg); }
.button-glass:hover { border-color: var(--accent-soft); }
.pulse-dot { display: inline-block; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--glow-blue); flex-shrink: 0; }
.skip-link { position: fixed; top: -80px; left: 20px; padding: 10px 20px; background: var(--button); color: var(--button-fg); z-index: 100; }
.skip-link:focus { top: 20px; }

/* Header */
.site-header { position: absolute; top: 0; left: 0; right: 0; z-index: 20; }
.header-inner { height: 96px; width: min(1360px, calc(100% - 80px)); margin-inline: auto; display: grid; grid-template-columns: 180px 1fr 180px; align-items: center; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; width: fit-content; align-items: center; }
.brand-image { width: 147px; aspect-ratio: 1783 / 320; display: block; overflow: hidden; }
.brand-image img { width: 121.81716%; height: auto; max-width: none; transform: translate(-9.2081%, -27.2099%); filter: var(--logo-filter); }
.desktop-nav { display: flex; justify-content: center; align-items: center; gap: clamp(16px, 2.05vw, 30px); }
.desktop-nav a { font-size: var(--text-nav); color: var(--muted); padding-block: 10px; white-space: nowrap; transition: color .2s; }
.desktop-nav a:hover, .desktop-nav a[aria-current] { color: var(--fg); }
.desktop-nav a[aria-current] { text-decoration: underline; text-underline-offset: 8px; text-decoration-color: var(--accent); }
.header-actions { display: flex; align-items: center; justify-content: flex-end; gap: 24px; }
.contact-link { display: inline-flex; align-items: center; gap: 20px; font-size: var(--text-ui); border: 1px solid var(--line-strong); border-radius: 6px; padding: 9px 15px; background: var(--glass); backdrop-filter: blur(16px); }
.contact-link svg { width: 15px; height: 15px; }
.contact-link:hover { border-color: var(--accent); }
.menu-toggle { display: none; background: transparent; padding: 8px; width: 34px; height: 34px; }
.menu-toggle span { display: block; background: var(--fg); height: 1px; width: 18px; margin: 5px 0; transition: transform .2s; }
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3px) rotate(-45deg); }
.mobile-nav { background: var(--header); backdrop-filter: blur(30px); padding: 16px 28px 30px; border-bottom: 1px solid var(--line-strong); }
.mobile-nav a { display: flex; align-items: center; justify-content: space-between; padding: 15px 0; border-bottom: 1px solid var(--line); font-size: 18px; }

/* Cinematic hero: native CSS art, the same geometry in both themes. */
.hero { position: relative; isolation: isolate; height: min(850px, max(740px, 100svh)); overflow: hidden; border-bottom: 1px solid var(--line); }
.hero-content { position: relative; z-index: 2; padding-top: 190px; text-align: center; }
.hero-eyebrow { font-family: var(--mono); font-size: var(--text-meta); letter-spacing: .16em; color: var(--muted); display: inline-flex; align-items: center; gap: 10px; border: 1px solid var(--line-strong); border-radius: 30px; padding: 7px 13px; background: var(--glass); backdrop-filter: blur(16px); margin-bottom: 30px; }
.hero h1 { font-size: clamp(50px, 6.4vw, 90px); font-weight: 500; line-height: 1.06; letter-spacing: -.065em; }
.hero h1 span { color: var(--accent); }
.hero-content > p { max-width: 480px; font-size: var(--text-body); line-height: 1.8; margin: 23px auto 26px; }
.hero-actions { display: flex; align-items: center; justify-content: center; gap: 12px; }
.hero-bottom { position: absolute; z-index: 3; bottom: 27px; left: 0; right: 0; display: flex; justify-content: space-between; align-items: center; }
.hero-coordinate { font-family: var(--mono); font-size: var(--text-meta); letter-spacing: .09em; color: var(--subtle); }
.scroll-link { display: inline-flex; align-items: center; gap: 14px; color: var(--muted); font-size: var(--text-ui); }
.scroll-link span { font-size: 16px; color: var(--fg); }
.hero-art { position: absolute; inset: 0; z-index: -1; overflow: hidden; background: radial-gradient(ellipse at 50% 70%, var(--accent-wash), transparent 55%); }
.art-halo { position: absolute; width: 920px; height: 470px; left: 50%; bottom: -215px; transform: translateX(-50%); border-radius: 50%; background: radial-gradient(ellipse, var(--glow-blue) 0%, transparent 66%); filter: blur(65px); opacity: .21; }
.art-sphere { position: absolute; width: 600px; height: 600px; left: 50%; bottom: -325px; transform: translateX(-50%) rotate(-22deg); border-radius: 50%; background: radial-gradient(circle at 73% 24%, var(--sphere-center), var(--sphere) 36%, var(--bg) 69%); box-shadow: 0 -1px 0 var(--orb-line), 12px -3px 35px var(--accent-wash), inset 0 4px 17px var(--orb-shadow); }
.sphere-surface { position: absolute; inset: 10px; border-radius: 50%; background: repeating-radial-gradient(ellipse at 65% 30%, transparent 0 29px, var(--line) 30px 30.5px, transparent 31px 40px); opacity: .65; }
.sphere-ring { position: absolute; border-radius: 50%; border: 1px solid var(--orb-line); inset: -22px; transform: rotateX(55deg) rotateY(15deg); box-shadow: 0 -2px 1px var(--orb-bright), inset 0 2px 2px var(--orb-line), 0 -3px 19px var(--accent-wash); }
.ring-a { transform: rotate(-16deg) scaleY(.49); border-width: 5px; inset: -35px; }
.ring-b { transform: rotate(45deg) scaleY(.68); border-width: 2px; inset: -10px; }
.ring-c { transform: rotate(-49deg) scaleY(.68); inset: -12px; border-width: 1px; }
.sphere-core { position: absolute; width: 36%; height: 36%; left: 32%; top: 31%; border: 1px solid var(--orb-line); border-radius: 50%; box-shadow: inset 0 0 60px var(--accent-wash), 0 0 40px var(--accent-wash); background: radial-gradient(circle at 70% 20%, var(--surface-raised), var(--surface)); }
.sphere-glint { position: absolute; width: 175px; height: 60px; top: 15%; right: 0; background: var(--glow-warm); filter: blur(40px); opacity: .45; transform: rotate(10deg); animation: breathe 10s ease-in-out infinite alternate; }
.art-horizon { position: absolute; width: 100%; height: 180px; bottom: 0; background: linear-gradient(transparent, var(--bg) 85%); }
.art-grid { position: absolute; inset: 110px 0 0; background-image: radial-gradient(var(--orb-line) .6px, transparent .8px); background-size: 70px 70px; opacity: .18; mask-image: linear-gradient(transparent, black 65%, transparent); }
.grain { position: absolute; inset: 0; opacity: var(--noise-opacity); pointer-events: none; }
@keyframes breathe { from { opacity: .25; transform: translateX(-12px) rotate(10deg); } to { opacity: .5; transform: translateX(12px) rotate(10deg); } }

/* Narrative and sections */
.thesis-section { padding-block: 86px 48px; border-bottom: 1px solid var(--line); }
.thesis-content { display: grid; grid-template-columns: 1.4fr 1fr; gap: 70px; align-items: start; }
.thesis-content h2 { font-size: clamp(27px, 3vw, 40px); line-height: 1.25; letter-spacing: -.045em; }
.thesis-content h2 span { color: var(--muted); }
.thesis-content p { font-size: var(--text-body); line-height: 1.85; }
.thesis-bottom { display: flex; justify-content: space-between; align-items: center; margin-top: 37px; font-size: var(--text-ui); color: var(--subtle); }
.thesis-bottom .text-link { font-size: var(--text-ui); }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; margin-bottom: 36px; }
.section-heading h2 { font-size: clamp(30px, 3.6vw, 48px); }
.section-heading p { font-size: var(--text-body); line-height: 1.9; padding-bottom: 3px; }
.section-heading .eyebrow { margin-bottom: 20px; }
.loop-tabs { display: grid; grid-template-columns: repeat(7, 1fr); border-bottom: 1px solid var(--line); margin-bottom: 24px; }
.loop-tabs button { position: relative; padding: 17px 9px 18px; text-align: left; background: transparent; font-size: var(--text-ui); color: var(--subtle); border-bottom: 1px solid transparent; }
.loop-tabs button > span { font-family: var(--mono); display: block; font-size: var(--text-meta); letter-spacing: .1em; margin-bottom: 5px; }
.loop-tabs button[aria-selected="true"] { color: var(--fg); border-bottom-color: var(--accent); }
.loop-tabs button:hover { color: var(--fg); }
.loop-stage { display: grid; grid-template-columns: 1fr 1fr; min-height: 350px; border-radius: 9px; overflow: hidden; }
.loop-illustration { position: relative; display: flex; align-items: center; justify-content: center; min-height: 340px; background: radial-gradient(ellipse at center, var(--accent-wash), transparent 70%); border-right: 1px solid var(--line); }
.loop-orbit { position: absolute; border: 1px solid var(--line-strong); border-radius: 50%; }
.orbit-outer { width: 235px; height: 235px; }
.orbit-inner { width: 172px; height: 172px; border-style: dashed; opacity: .45; }
.loop-center { text-align: center; width: 106px; height: 106px; border: 1px solid var(--line-strong); border-radius: 50%; background: var(--glass); box-shadow: 0 0 35px var(--accent-wash); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; }
.loop-center svg { width: 34px; height: 34px; color: var(--accent); }
.loop-center > span { font-family: var(--mono); letter-spacing: .11em; font-size: var(--text-meta); line-height: 1.6; color: var(--muted); }
.loop-node { position: absolute; left: calc(50% - 4px); top: calc(50% - 4px); width: 8px; height: 8px; transform: rotate(var(--angle)) translateX(117.5px); }
.loop-node > span { display: block; width: 8px; height: 8px; border-radius: 50%; background: var(--surface-raised); border: 1px solid var(--subtle); transition: background .2s, box-shadow .2s; }
.loop-node.is-active > span { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 0 5px var(--accent-wash), 0 0 15px var(--glow-blue); }
.loop-caption { position: absolute; left: 0; right: 0; font-family: var(--mono); font-size: var(--text-meta); letter-spacing: .1em; color: var(--subtle); text-align: center; }
.caption-top { top: 22px; }
.caption-bottom { bottom: 22px; }
.loop-panel { display: flex; flex-direction: column; justify-content: center; align-items: flex-start; padding: 40px 45px; }
.loop-panel .eyebrow { font-size: var(--text-meta); color: var(--accent); margin-bottom: 18px; }
.loop-panel h3 { font-size: 29px; max-width: 360px; }
.loop-panel p { font-size: var(--text-body); margin-top: 15px; max-width: 360px; line-height: 1.85; }
.loop-detail { display: flex; align-items: center; gap: 9px; font-family: var(--mono); color: var(--subtle); font-size: var(--text-meta); margin-top: 26px; }
.next-step { margin-top: 23px; font-size: var(--text-ui); padding: 0; background: transparent; }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.product-card { border-radius: 8px; padding: 26px; display: flex; align-items: flex-start; flex-direction: column; min-height: 380px; transition: border-color .2s, transform .2s; }
.product-card:hover { border-color: var(--line-strong); transform: translateY(-4px); }
.card-top { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.card-top .index { font-size: var(--text-meta); }
.card-top > svg { color: var(--subtle); width: 16px; height: 16px; }
.product-symbol { width: 72px; height: 72px; display: grid; place-items: center; margin-block: 27px 22px; border-radius: 17px; background: radial-gradient(circle at 20% 0%, var(--accent-wash), transparent), var(--glass); border: 1px solid var(--line-strong); box-shadow: inset 0 1px var(--line); }
.product-symbol svg { width: 42px; height: 42px; color: var(--accent); }
.symbol-commerce svg, .symbol-retail svg { color: var(--muted); }
.status { display: inline-flex; align-items: center; gap: 6px; color: var(--subtle); font-family: var(--mono); font-size: var(--text-meta); }
.status > span { display: block; width: 4px; height: 4px; border: 1px solid var(--accent-soft); border-radius: 50%; }
.product-card h3 { font-size: 23px; margin-top: 9px; letter-spacing: -.04em; }
.product-card p { font-size: var(--text-body); line-height: 1.85; margin-top: 14px; margin-bottom: 24px; }
.product-card .text-link { margin-top: auto; font-size: var(--text-ui); }
.product-card .text-link svg { width: 15px; height: 15px; }
.solution-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.solution-card { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: var(--surface); transition: border-color .2s; }
.solution-card:hover { border-color: var(--line-strong); }
.solution-art { height: 254px; position: relative; overflow: hidden; border-bottom: 1px solid var(--line); background: radial-gradient(ellipse at 50% 110%, var(--accent-wash), transparent 75%); display: flex; align-items: flex-end; justify-content: center; }
.commerce-window { width: 76%; height: 195px; transform: perspective(600px) rotateX(7deg) rotateY(-9deg); background: linear-gradient(135deg, var(--glass), transparent), var(--surface-raised); border: 1px solid var(--line-strong); border-bottom: 0; border-radius: 8px 8px 0 0; box-shadow: 0 -10px 70px var(--shadow); padding: 14px 20px; }
.window-bar { display: flex; gap: 4px; align-items: center; }
.window-bar i { width: 4px; height: 4px; border-radius: 50%; background: var(--subtle); opacity: .5; }
.window-bar span { margin-left: 12px; font-size: 6px; font-family: var(--mono); letter-spacing: .08em; color: var(--subtle); }
.chart-label { font-size: 11px; margin-top: 23px; color: var(--muted); }
.chart-bars { height: 64px; display: flex; gap: 9px; align-items: flex-end; margin-top: 15px; border-bottom: 1px solid var(--line-strong); }
.chart-bars i { flex: 1; height: 25%; background: linear-gradient(var(--chart), var(--accent-wash)); border-radius: 2px 2px 0 0; opacity: .8; }
.chart-bars i:nth-child(2n) { height: 35%; }.chart-bars i:nth-child(3n) { height: 50%; }.chart-bars i:nth-child(4n) { height: 45%; }.chart-bars i:nth-child(5n) { height: 65%; }.chart-bars i:nth-child(7n) { height: 70%; }.chart-bars i:nth-child(9n) { height: 82%; }.chart-bars i:nth-child(11n) { height: 90%; }.chart-bars i:last-child { height: 100%; }
.window-tags { display: flex; gap: 12px; margin-top: 11px; color: var(--subtle); font-size: 7px; font-family: var(--mono); }
.retail-schematic { position: relative; width: 360px; height: 250px; transform: scale(.85); }
.retail-floor { position: absolute; width: 260px; height: 170px; left: 45px; bottom: -12px; transform: rotateX(60deg) rotateZ(-35deg); background: repeating-linear-gradient(0deg, transparent, transparent 23px, var(--line) 24px), repeating-linear-gradient(90deg, transparent, transparent 23px, var(--line) 24px); border: 1px solid var(--line-strong); }
.retail-block { position: absolute; z-index: 1; width: 84px; height: 98px; background: linear-gradient(125deg, var(--glass), transparent), var(--surface-raised); border: 1px solid var(--line-strong); transform: skewY(-18deg); border-radius: 4px; box-shadow: 12px 15px 20px var(--shadow); }
.retail-block::before { content: ''; position: absolute; left: 0; top: -19px; width: 100%; height: 19px; background: var(--surface); border: 1px solid var(--line-strong); transform-origin: bottom; transform: skewX(50deg); }
.retail-block::after { content: ''; position: absolute; left: 18px; right: 18px; top: 16px; height: 35px; border: 1px solid var(--line-strong); background: var(--accent-wash); box-shadow: 0 0 10px var(--accent-wash); }
.block-one { top: 77px; left: 86px; height: 98px; }
.block-two { top: 93px; left: 190px; height: 71px; }
.block-three { width: 47px; height: 43px; top: 162px; left: 160px; }
.block-three::after { top: 9px; left: 8px; right: 8px; height: 12px; }
.schematic-label { position: absolute; top: 15px; left: 24px; color: var(--subtle); font-family: var(--mono); font-size: 8px; letter-spacing: .11em; }
.solution-copy { padding: 26px 30px 30px; }
.solution-copy .eyebrow { font-size: var(--text-meta); margin-bottom: 13px; }
.solution-copy h3 { display: flex; justify-content: space-between; align-items: center; font-size: 26px; }
.solution-copy h3 svg { width: 19px; height: 19px; }
.solution-copy p { font-size: var(--text-body); line-height: 1.9; margin-top: 14px; }
.research-row { display: grid; grid-template-columns: 140px 1fr 40px; gap: 25px; align-items: center; border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line); padding: 32px 0; }
.research-row:hover { background: var(--glass); }
.research-type { font-family: var(--mono); font-size: var(--text-meta); letter-spacing: .08em; color: var(--muted); line-height: 2; }
.research-type > span { color: var(--subtle); font-size: var(--text-meta); }
.research-row h3 { font-size: 24px; letter-spacing: -.035em; }
.research-row p { font-size: var(--text-body); margin-top: 10px; }
.research-arrow { display: flex; justify-content: flex-end; }
.closing-cta { position: relative; isolation: isolate; text-align: center; overflow: hidden; border: 1px solid var(--line); border-radius: 10px; padding: 72px 24px 76px; margin-block: 48px 95px; background: var(--surface); }
.closing-cta h2 { font-size: clamp(38px, 4.6vw, 64px); }
.closing-cta > p { font-size: var(--text-body); margin-block: 22px 27px; }
.closing-cta .eyebrow { font-size: var(--text-meta); }
.cta-glow { position: absolute; z-index: -1; width: 470px; height: 470px; left: 50%; top: 60%; transform: translateX(-50%); background: radial-gradient(circle, var(--glow-blue), transparent 65%); opacity: .09; filter: blur(25px); }
.cta-orbit { position: absolute; z-index: -1; width: 680px; height: 680px; left: 50%; top: 55%; transform: translateX(-50%) scaleY(.58); border: 1px solid var(--line-strong); border-radius: 50%; box-shadow: 0 -3px 16px var(--accent-wash); }

/* Footer and palette controls */
.site-footer { border-top: 1px solid var(--line); }
.footer-top { display: flex; justify-content: space-between; gap: 70px; padding-block: 50px 40px; }
.footer-tagline { font-size: var(--text-body); line-height: 1.9; margin-top: 18px; }
.footer-links { display: grid; grid-template-columns: repeat(3, 120px); gap: 15px 24px; align-content: start; font-size: var(--text-ui); color: var(--muted); }
.footer-links a:hover { color: var(--fg); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding-block: 20px 100px; border-top: 1px solid var(--line); color: var(--subtle); font-size: var(--text-meta); }
.floating-controls { position: fixed; z-index: 30; right: max(24px, calc(env(safe-area-inset-right) + 16px)); bottom: max(24px, calc(env(safe-area-inset-bottom) + 16px)); display: flex; flex-direction: column; gap: 10px; }
.floating-button { width: 50px; height: 50px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 14px; background: var(--header); color: var(--fg); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); box-shadow: 0 6px 24px var(--shadow), inset 0 1px 0 var(--line); transition: border-color .2s, background .2s; }
.floating-button:hover { border-color: var(--accent); background: var(--surface-raised); }
.floating-button svg { width: 21px; height: 21px; }
.language-toggle { font: 500 var(--text-ui) var(--mono); }
.theme-icon-dark { display: none; }
:root[data-theme="light"] .theme-icon-light { display: none; }
:root[data-theme="light"] .theme-icon-dark { display: block; }
.language-menu { position: absolute; bottom: calc(100% + 12px); right: 0; width: 230px; padding: 12px; border: 1px solid var(--line-strong); border-radius: 14px; background: var(--header); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); box-shadow: 0 10px 36px var(--shadow); }
.language-menu-label { display: block; font: var(--text-meta) var(--mono); color: var(--subtle); letter-spacing: .08em; margin: 7px 10px 10px; }
.language-option { display: flex; align-items: center; justify-content: space-between; width: 100%; min-height: 44px; padding: 10px; border-radius: 8px; background: transparent; font-size: var(--text-ui); }
.language-option[aria-pressed="true"] { background: var(--accent-wash); }
.language-option:hover:not(:disabled) { background: var(--surface-raised); }
.language-option:disabled { cursor: default; color: var(--subtle); }
.language-coming-soon { font-size: var(--text-meta); }
body.menu-open .floating-controls { visibility: hidden; }

/* Interior pages */
.page-intro { padding-top: 190px; padding-bottom: 60px; position: relative; }
.page-intro .eyebrow { margin-bottom: 26px; }
.page-intro h1 { font-size: clamp(42px, 6vw, 76px); }
.page-intro > p { max-width: 540px; font-size: var(--text-body); line-height: 1.85; margin-top: 28px; }
.page-intro-line { height: 1px; background: var(--line); margin-top: 56px; }
.product-details { display: grid; gap: 24px; padding-bottom: 45px; }
.product-detail { display: grid; grid-template-columns: .8fr 1.2fr; border-radius: 9px; overflow: hidden; scroll-margin-top: 28px; }
.product-detail-heading { padding: 40px; border-right: 1px solid var(--line); background: radial-gradient(ellipse at 0 100%, var(--accent-wash), transparent 70%); }
.product-detail-heading > .index { font-size: var(--text-meta); }
.product-detail-heading .product-symbol { margin-block: 28px 24px; }
.product-detail-heading h2 { font-size: 30px; margin-bottom: 15px; }
.product-detail-body { padding: 45px; }
.product-detail-body h3 { font-size: 28px; max-width: 380px; }
.product-detail-body > p { font-size: var(--text-body); line-height: 1.9; margin-top: 20px; }
.feature-list { margin: 24px 0 32px; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; list-style: none; }
.feature-list li { font-size: var(--text-ui); display: flex; gap: 10px; color: var(--muted); }
.feature-list li > span { color: var(--accent); }
.solution-details { display: grid; gap: 90px; padding-bottom: 70px; }
.solution-detail { display: grid; grid-template-columns: 1fr 1.1fr; align-items: start; gap: 80px; }
.solution-detail-intro h2 { font-size: 38px; margin-top: 22px; }
.solution-detail-intro p { font-size: var(--text-body); line-height: 1.9; margin-block: 24px 32px; }
.use-case { border-radius: 8px; padding: 30px; }
.use-case-label { font-family: var(--mono); font-size: var(--text-meta); letter-spacing: .09em; color: var(--subtle); margin-bottom: 17px; }
.use-case-row { display: grid; grid-template-columns: 95px 1fr; gap: 15px; border-top: 1px solid var(--line); padding-block: 17px; }
.use-case-row > span { font-size: var(--text-ui); color: var(--accent); }
.use-case-row p { font-size: var(--text-body); line-height: 1.9; }
.list-heading { display: flex; justify-content: space-between; font-family: var(--mono); font-size: var(--text-meta); letter-spacing: .09em; color: var(--subtle); padding-bottom: 23px; }
.publication-card { border-radius: 8px; display: grid; grid-template-columns: .8fr 1.2fr; overflow: hidden; }
.publication-visual { min-height: 300px; border-right: 1px solid var(--line); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 36px; background: radial-gradient(ellipse at center, var(--accent-wash), transparent 70%); }
.publication-visual svg { width: 135px; height: 135px; color: var(--accent); }
.publication-visual > span { font-family: var(--mono); font-size: var(--text-meta); letter-spacing: .13em; color: var(--subtle); }
.publication-content { padding: 50px; }
.publication-content h2 { font-size: 36px; }
.publication-content p { font-size: var(--text-body); line-height: 1.85; margin-block: 20px 26px; }
.list-note { font-size: var(--text-body); margin-block: 25px 45px; }
.empty-state { border-radius: 9px; text-align: center; padding: 65px 24px; margin-bottom: 60px; }
.empty-state-orbit { width: 90px; height: 90px; border-radius: 50%; border: 1px solid var(--line-strong); display: grid; place-items: center; box-shadow: 0 0 50px var(--accent-wash); margin: 0 auto 30px; }
.empty-state-orbit svg { width: 45px; height: 45px; color: var(--accent); }
.empty-state h2 { font-size: 35px; }
.empty-state > p { font-size: var(--text-body); margin-block: 20px 26px; }
.interest-list { border-top: 1px solid var(--line-strong); }
.interest-row { padding-block: 32px; display: grid; grid-template-columns: 50px 1fr 1fr; gap: 24px; align-items: start; border-bottom: 1px solid var(--line); }
.interest-row h3 { font-size: 26px; }
.interest-row p { font-size: var(--text-body); line-height: 1.9; }
.career-callout { border-radius: 9px; padding: 44px; margin-block: 60px 90px; display: grid; grid-template-columns: 1fr auto; gap: 16px; align-items: center; }
.career-callout h3 { font-size: 30px; }
.career-callout p { grid-column: 1; font-size: var(--text-body); }
.career-callout .button { grid-column: 2; grid-row: 1 / 3; }
.about-manifesto { display: grid; grid-template-columns: 1fr 1fr; gap: 28px 85px; padding-block: 0 90px; }
.about-manifesto > .eyebrow { grid-column: 1 / -1; margin: 0; }
.about-manifesto h2 { font-size: 48px; }
.about-prose p { font-size: var(--text-body); line-height: 1.95; }
.about-prose p + p { margin-top: 20px; }
.about-principles { padding-block: 35px 80px; border-top: 1px solid var(--line); }
.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.principle { padding-top: 25px; border-top: 1px solid var(--line); }
.principle h3 { font-size: 27px; margin-top: 25px; }
.principle p { font-size: var(--text-body); line-height: 1.9; margin-top: 20px; }
.contact-section { display: grid; grid-template-columns: .85fr 1.15fr; gap: 80px; margin-bottom: 100px; }
.contact-info h2 { font-size: 45px; }
.contact-info > p { font-size: var(--text-body); max-width: 320px; margin-top: 25px; line-height: 1.9; }
.contact-address { margin-top: 50px; display: flex; flex-direction: column; gap: 12px; }
.contact-email { font-size: 19px; display: inline-flex; align-items: center; gap: 20px; width: fit-content; }
.contact-email svg { width: 17px; height: 17px; }
.contact-form { border-radius: 9px; padding: 34px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { display: flex; flex-direction: column; gap: 9px; margin-bottom: 22px; }
.form-field label { font-size: var(--text-ui); }
.form-field label span { color: var(--subtle); }
.form-field input, .form-field select, .form-field textarea { width: 100%; border: 1px solid var(--line-strong); border-radius: 5px; background: var(--bg); font-size: var(--text-body); padding: 12px 14px; min-height: 44px; }
.form-field textarea { resize: vertical; min-height: 120px; }
.form-field ::placeholder { color: var(--subtle); opacity: .8; }
.form-field select { cursor: pointer; }
.form-note { font-size: var(--text-meta); margin-top: 15px; line-height: 1.8; }
.message-preview { margin-top: 30px; padding-top: 24px; border-top: 1px solid var(--line-strong); }
.message-preview pre { white-space: pre-wrap; overflow-wrap: anywhere; font: var(--text-ui)/1.8 var(--font); color: var(--muted); margin-bottom: 24px; }
.draft-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.copy-status { font-size: var(--text-ui); margin-top: 15px; }
.article { max-width: 780px; padding-top: 160px; }
.article-back { color: var(--muted); font-size: var(--text-ui); margin-bottom: 45px; }
.article-header { border-bottom: 1px solid var(--line-strong); padding-bottom: 35px; }
.article-header h1 { font-size: clamp(40px, 5vw, 66px); }
.article-header > p { font-size: 16px; line-height: 1.8; margin-top: 28px; }
.article-meta { font-family: var(--mono); color: var(--subtle); font-size: var(--text-meta); display: flex; gap: 24px; margin-top: 32px; }
.article-body { padding-top: 10px; }
.article-body h2 { font-size: 30px; line-height: 1.2; margin-block: 45px 24px; }
.article-body p { font-size: var(--text-body); line-height: 1.95; margin-block: 19px; }
.article-body strong { color: var(--fg); font-weight: 500; }
.article-body blockquote { border-left: 2px solid var(--accent); padding: 16px 25px; margin: 32px 0; background: var(--glass); }
.article-body blockquote p { color: var(--fg); font-size: 21px; margin: 0; }
.article-body ul { padding-left: 20px; margin-block: 24px; color: var(--muted); font-size: var(--text-body); line-height: 1.9; }
.article-body li { padding-left: 8px; margin-block: 10px; }
.article-end { padding-block: 44px 75px; margin-top: 50px; border-top: 1px solid var(--line-strong); }
.article-end h2 { font-size: 31px; margin-bottom: 25px; }
.not-found-actions { display: flex; gap: 16px; padding-bottom: 140px; }

@media (min-width: 1600px) { .hero-content { padding-top: 205px; } .art-sphere { width: 680px; height: 680px; bottom: -375px; } }
@media (max-width: 1100px) {
  .container { width: calc(100% - 72px); }
  .header-inner { grid-template-columns: 145px 1fr 135px; width: calc(100% - 56px); }
  .brand-image { width: 128px; }
  .desktop-nav { gap: 17px; }
.desktop-nav a { font-size: var(--text-nav); }
  .contact-link { gap: 12px; padding-inline: 12px; font-size: var(--text-ui); }
  .thesis-content { gap: 40px; }
  .product-card { padding: 22px; }
  .card-top .index { font-size: var(--text-meta); }
  .solution-detail, .contact-section { gap: 40px; }
  .loop-panel { padding: 32px; }
  .footer-links { grid-template-columns: repeat(3, 100px); }
}
@media (max-width: 860px) {
  .header-inner { display: flex; justify-content: space-between; height: 82px; }
  .desktop-nav { display: none; }
  .menu-toggle { display: block; }
  .site-header:has(.menu-toggle[aria-expanded="true"]) { position: fixed; background: var(--bg); }
  .hero { height: 780px; }
  .hero-content { padding-top: 175px; }
  .hero h1 { font-size: clamp(44px, 7.5vw, 65px); }
  .hero-coordinate { font-size: var(--text-meta); }
  .hero-coordinate:last-child { display: none; }
  .thesis-content { grid-template-columns: 1fr; gap: 25px; }
  .thesis-content p { max-width: 550px; }
  .section-heading h2 { font-size: 36px; }
  .section-heading p { max-width: 210px; }
  .section-heading p br { display: none; }
  .loop-tabs { overflow-x: auto; grid-template-columns: repeat(7, minmax(90px, 1fr)); }
  .loop-tabs button { font-size: var(--text-ui); }
  .loop-stage { grid-template-columns: .85fr 1fr; }
  .orbit-outer { width: 200px; height: 200px; }
  .orbit-inner { width: 150px; height: 150px; }
  .loop-node { transform: rotate(var(--angle)) translateX(100px); }
  .loop-panel h3 { font-size: 26px; }
  .loop-detail { font-size: var(--text-meta); }
  .product-grid { grid-template-columns: 1fr; gap: 18px; }
  .product-card { min-height: 0; padding: 28px; display: grid; grid-template-columns: 80px 1fr; gap: 0 24px; }
  .card-top { grid-column: 1 / -1; margin-bottom: 20px; }
  .card-top .index { font-size: var(--text-meta); }
  .product-card .product-symbol { grid-column: 1; grid-row: 2 / 6; margin-top: 5px; }
  .product-card .status, .product-card h3, .product-card p, .product-card .text-link { grid-column: 2; }
  .product-card p { margin-bottom: 17px; }
  .solution-art { height: 210px; }
  .commerce-window { width: 90%; padding: 14px; height: 175px; }
  .solution-copy { padding: 24px; }
  .solution-copy h3 { font-size: 22px; }
  .research-row { grid-template-columns: 110px 1fr 24px; }
  .footer-top { gap: 40px; }
  .footer-links { grid-template-columns: repeat(2, 105px); }
  .footer-location { display: none; }
  .page-intro { padding-top: 160px; }
  .product-detail { grid-template-columns: 1fr 1.2fr; }
  .product-detail-body, .product-detail-heading { padding: 30px; }
  .feature-list { grid-template-columns: 1fr; }
  .solution-detail { grid-template-columns: 1fr; gap: 30px; }
  .solution-detail-intro p { max-width: 530px; }
  .publication-content { padding: 35px; }
  .publication-content h2 { font-size: 31px; }
  .about-manifesto { gap: 25px 40px; }
  .about-manifesto h2 { font-size: 38px; }
  .principle-grid { gap: 25px; }
  .contact-section { grid-template-columns: 1fr; }
  .contact-info { display: grid; grid-template-columns: 1fr 1fr; gap: 0 30px; }
  .contact-info > .eyebrow { grid-column: 1 / -1; }
  .contact-info h2 { grid-row: 2 / 4; }
  .contact-info > p { margin-top: 0; }
  .contact-address { margin-top: 20px; }
}
@media (max-width: 600px) {
  html { scroll-padding-top: 90px; }
  .container { width: calc(100% - 40px); }
  .header-inner { width: calc(100% - 40px); height: 76px; }
  .brand-image { width: 117px; }
  .header-actions { gap: 12px; }
  .contact-link { padding: 8px 11px; font-size: var(--text-ui); gap: 8px; }
  .contact-link svg { width: 12px; height: 12px; }
  .hero { height: 760px; min-height: 700px; }
  .hero-content { padding-top: 160px; }
  .hero-eyebrow { font-size: var(--text-meta); margin-bottom: 30px; letter-spacing: .12em; }
  .hero h1 { font-size: clamp(32px, 8.7vw, 51px); letter-spacing: -.065em; line-height: 1.14; }
  .hero-content > p { font-size: var(--text-body); max-width: 340px; margin-block: 22px 26px; }
  .hero-actions { gap: 9px; }
  .hero-actions .button { font-size: var(--text-ui); gap: 13px; padding-inline: 15px; min-height: 45px; }
  .hero-actions .button svg { width: 16px; height: 16px; }
  .art-sphere { width: 460px; height: 460px; bottom: -190px; }
  .art-halo { width: 600px; height: 400px; bottom: -80px; }
  .hero-bottom { bottom: 24px; justify-content: center; }
  .hero-coordinate { display: none; }
  .section { padding-block: 58px; }
  .thesis-section { padding-block: 55px 35px; }
  .eyebrow { font-size: var(--text-meta); letter-spacing: .1em; }
  .thesis-content h2 { font-size: 27px; }
  .thesis-content p { font-size: var(--text-body); }
  .thesis-bottom { gap: 20px; align-items: flex-start; }
  .thesis-bottom > span { max-width: 170px; font-size: var(--text-meta); }
  .thesis-bottom .text-link { font-size: var(--text-ui); gap: 8px; white-space: nowrap; }
  .section-heading { flex-direction: column; align-items: flex-start; gap: 22px; margin-bottom: 28px; }
  .section-heading h2 { font-size: 33px; }
  .section-heading p { max-width: 100%; font-size: var(--text-body); }
  .section-heading .text-link { font-size: var(--text-ui); }
  .loop-tabs { margin-bottom: 16px; grid-template-columns: repeat(7, 88px); }
  .loop-tabs button { padding: 14px 5px; }
  .loop-stage { grid-template-columns: 1fr; }
  .loop-illustration { min-height: 295px; border-right: 0; border-bottom: 1px solid var(--line); }
  .loop-panel { min-height: 304px; padding: 30px 26px; }
  .loop-panel h3 { font-size: 28px; }
  .loop-panel p { font-size: var(--text-body); }
  .loop-detail { font-size: var(--text-meta); margin-top: 22px; }
  .product-card { display: flex; padding: 26px; }
  .card-top { margin-bottom: 0; }
  .card-top .index { font-size: var(--text-meta); }
  .product-card .product-symbol { margin-top: 25px; margin-bottom: 23px; }
  .product-card p { font-size: var(--text-body); margin-bottom: 24px; }
  .product-card h3 { font-size: 26px; }
  .product-card .text-link { font-size: var(--text-ui); }
  .solution-grid { grid-template-columns: 1fr; }
  .solution-art { height: 240px; }
  .commerce-window { width: 80%; height: 190px; }
  .solution-copy h3 { font-size: 25px; }
  .solution-copy p { font-size: var(--text-body); }
  .research-row { grid-template-columns: 1fr 25px; gap: 20px; padding: 25px 0; }
  .research-type { grid-column: 1 / -1; font-size: var(--text-meta); }
  .research-type br { display: none; }
  .research-type > span { margin-left: 10px; }
  .research-row h3 { font-size: 24px; }
  .research-row p { font-size: var(--text-body); }
  .closing-cta { padding-block: 55px 60px; margin-block: 25px 60px; }
  .closing-cta h2 { font-size: 44px; }
  .closing-cta > p { max-width: 240px; margin-inline: auto; }
  .footer-top { flex-direction: column; gap: 34px; padding-block: 35px; }
  .footer-links { grid-template-columns: repeat(3, 1fr); gap: 18px 24px; }
  .footer-bottom { font-size: var(--text-meta); }
  .floating-controls { right: max(16px, calc(env(safe-area-inset-right) + 12px)); bottom: max(16px, calc(env(safe-area-inset-bottom) + 12px)); gap: 8px; }
  .floating-button { width: 44px; height: 44px; border-radius: 12px; }
  .page-intro { padding-top: 145px; padding-bottom: 35px; }
  .page-intro h1 { font-size: clamp(34px, 10vw, 48px); }
  .page-intro > p { font-size: var(--text-body); }
  .page-intro-line { margin-top: 35px; }
  .product-detail { grid-template-columns: 1fr; }
  .product-detail-heading { border-right: 0; border-bottom: 1px solid var(--line); }
  .product-detail-body, .product-detail-heading { padding: 28px; }
  .product-detail-body h3 { font-size: 28px; }
  .feature-list { grid-template-columns: 1fr 1fr; gap: 18px 12px; }
  .solution-details { gap: 60px; padding-bottom: 40px; }
  .solution-detail-intro h2 { font-size: 34px; }
  .use-case { padding: 23px; }
  .use-case-row { grid-template-columns: 75px 1fr; gap: 10px; }
  .publication-card { grid-template-columns: 1fr; }
  .publication-visual { min-height: 220px; border-right: 0; border-bottom: 1px solid var(--line); gap: 24px; }
  .publication-visual svg { width: 105px; height: 105px; }
  .publication-content { padding: 28px; }
  .publication-content h2 { font-size: 33px; }
  .empty-state { padding-block: 45px; }
  .empty-state h2 { font-size: 29px; }
  .interest-row { grid-template-columns: 30px 1fr; gap: 15px; }
  .interest-row h3 { font-size: 25px; }
  .interest-row p { grid-column: 2; }
  .career-callout { display: flex; flex-direction: column; align-items: flex-start; padding: 28px; margin-bottom: 60px; }
  .career-callout .button { margin-top: 10px; }
  .about-manifesto { grid-template-columns: 1fr; gap: 28px; padding-bottom: 55px; }
  .about-manifesto h2 { font-size: 40px; }
  .principle-grid { grid-template-columns: 1fr; gap: 32px; }
  .principle h3 { margin-top: 18px; }
  .principle p { margin-top: 14px; }
  .about-principles { padding-bottom: 40px; }
  .contact-section { gap: 38px; margin-bottom: 60px; }
  .contact-info { display: block; }
  .contact-info h2 { font-size: 40px; }
  .contact-info > p { margin-top: 25px; }
  .contact-address { margin-top: 30px; }
  .contact-form { padding: 24px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .form-field input, .form-field select, .form-field textarea { font-size: 16px; }
  .article { padding-top: 130px; }
  .article-back { margin-bottom: 35px; }
  .article-header h1 { font-size: 43px; }
  .article-header > p { font-size: var(--text-ui); }
  .article-body h2 { font-size: 28px; }
  .article-body p, .article-body ul { font-size: var(--text-body); }
  .article-end h2 { font-size: 29px; }
  .not-found-actions { flex-direction: column; align-items: flex-start; padding-bottom: 70px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}