:root {
  --bg: #edf0e9;
  --bg-rgb: 237, 240, 233;
  --surface: #f8f8f2;
  --surface-2: #dfe5dc;
  --ink: #101512;
  --ink-rgb: 16, 21, 18;
  --soft: #465149;
  --muted: #58635b;
  --line: rgba(16, 21, 18, .18);
  --line-strong: rgba(16, 21, 18, .42);
  --acid: #c9ff45;
  --accent-text: #426500;
  --accent-ui: #426500;
  --coral: #ff735f;
  --coral-text: #8e332b;
  --violet: #a998ff;
  --blue: #89d8ff;
  --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Fraunces', Georgia, serif;
  --ease: cubic-bezier(.2,.78,.2,1);
  --max: 1500px;
  --nav-gap: 14px;
  --nav-h: 66px;
  --scene-glow: rgba(201, 255, 69, .22);
}

[data-theme="dark"] {
  --bg: #0b100e;
  --bg-rgb: 11, 16, 14;
  --surface: #121a16;
  --surface-2: #19231e;
  --ink: #eff3eb;
  --ink-rgb: 239, 243, 235;
  --soft: #bac4bd;
  --muted: #87938b;
  --line: rgba(239, 243, 235, .16);
  --line-strong: rgba(239, 243, 235, .38);
  --scene-glow: rgba(201, 255, 69, .14);
  --accent-text: #c9ff45;
  --accent-ui: #c9ff45;
  --coral-text: #ff806c;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; background: var(--bg); }
body {
  min-width: 320px;
  overflow-x: hidden;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: color .45s var(--ease), background .45s var(--ease);
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(var(--ink-rgb), .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--ink-rgb), .035) 1px, transparent 1px);
  background-size: 52px 52px;
  background-position: center top;
}
a { color: inherit; text-decoration: none; }
button { border: 0; color: inherit; font: inherit; background: none; cursor: pointer; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

.skip-link {
  position: fixed;
  top: -80px;
  left: 24px;
  z-index: 999;
  padding: 12px 18px;
  border-radius: 999px;
  color: #101512;
  background: var(--acid);
  transition: top .2s;
}
.skip-link:focus { top: 18px; }
:focus-visible { outline: 2px solid var(--accent-ui); outline-offset: 4px; }

.ambient { position: fixed; inset: 0; z-index: -2; overflow: hidden; pointer-events: none; }
.ambient span {
  position: absolute;
  width: min(70vw, 980px);
  aspect-ratio: 1;
  border-radius: 50%;
  opacity: .9;
  filter: blur(110px);
  transition: transform 1.2s var(--ease), background 1s var(--ease), opacity 1s;
}
.ambient span:first-child { top: -42%; right: -25%; background: var(--scene-glow); }
.ambient span:last-child { bottom: -55%; left: -35%; background: rgba(255, 115, 95, .08); }
body[data-scene="thinking"] { --scene-glow: rgba(169, 152, 255, .18); }
body[data-scene="cases"] { --scene-glow: rgba(137, 216, 255, .18); }
body[data-scene="system"] { --scene-glow: rgba(255, 115, 95, .14); }
body[data-scene="contact"] { --scene-glow: rgba(201, 255, 69, .2); }
body[data-scene="thinking"] .ambient span:first-child { transform: translate(-22vw, 22vh) scale(.85); }
body[data-scene="cases"] .ambient span:first-child { transform: translate(-52vw, 52vh) scale(1.1); }
body[data-scene="system"] .ambient span:first-child { transform: translate(-18vw, 78vh) scale(.8); }
body[data-scene="contact"] .ambient span:first-child { transform: translate(-45vw, 120vh) scale(1.15); }

.page-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 500;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--accent-ui), var(--blue), var(--violet));
}

/* Navigation */
.glass-nav {
  position: fixed;
  top: var(--nav-gap);
  left: var(--nav-gap);
  right: var(--nav-gap);
  z-index: 200;
  height: var(--nav-h);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 18px;
  border: 1px solid rgba(var(--ink-rgb), .2);
  border-radius: 999px;
  isolation: isolate;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.15), 0 10px 36px rgba(0,0,0,.08);
}
.glass-nav::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  clip-path: inset(0 round 999px);
  background:
    linear-gradient(120deg, rgba(255,255,255,.13), transparent 32%, rgba(201,255,69,.035) 72%, rgba(255,255,255,.08)),
    rgba(var(--bg-rgb), .68);
  -webkit-backdrop-filter: blur(22px) saturate(1.5);
  backdrop-filter: blur(22px) saturate(1.5);
}
.glass-nav.is-scrolled::before { background: rgba(var(--bg-rgb), .82); }
.brand { display: flex; align-items: center; gap: 10px; width: max-content; }
.brand-symbol {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #101512;
  background: var(--acid);
  box-shadow: 0 0 0 1px rgba(16,21,18,.65);
  transition: transform .55s var(--ease);
}
.brand:hover .brand-symbol { transform: rotate(180deg) scale(1.05); }
.brand-word { font-family: var(--font-display); font-size: 1.25rem; font-weight: 600; }
.brand-role { padding-left: 10px; border-left: 1px solid var(--line); color: var(--muted); font-size: .61rem; font-weight: 700; letter-spacing: .14em; }
.main-nav { display: flex; align-items: center; gap: clamp(22px, 3vw, 46px); }
.main-nav a { position: relative; color: var(--soft); font-size: .8rem; font-weight: 600; }
.main-nav a::after { content: ''; position: absolute; left: 0; right: 100%; bottom: -7px; height: 2px; background: var(--accent-ui); transition: right .35s var(--ease); }
.main-nav a:hover::after, .main-nav a.is-active::after { right: 0; }
.main-nav a.is-active { color: var(--ink); }
.nav-tools { justify-self: end; display: flex; align-items: center; gap: 8px; }
.language-switch, .theme-switch, .menu-switch { border: 1px solid var(--line); background: rgba(var(--bg-rgb), .32); }
.language-switch { display: flex; align-items: center; height: 38px; padding: 3px; border-radius: 999px; }
.language-switch span { width: 34px; height: 30px; display: grid; place-items: center; border-radius: 999px; color: var(--muted); font-size: .68rem; font-weight: 700; }
.language-switch span.is-active { color: #101512; background: var(--acid); }
.theme-switch { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; }
.theme-light, [data-theme="light"] .theme-dark { display: none; }
[data-theme="light"] .theme-light { display: block; }
.menu-switch { display: none; width: 38px; height: 38px; place-content: center; gap: 5px; border-radius: 50%; }
.menu-switch span { width: 15px; height: 1px; background: currentColor; transition: transform .3s var(--ease); }

/* Persistent scene index */
.scene-rail {
  position: fixed;
  top: 50%;
  right: 16px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  width: 164px;
  gap: 8px;
  transform: translateY(-50%);
}
.scene-rail a { min-height: 36px; display: flex; align-items: center; justify-content: flex-end; gap: 8px; color: var(--muted); font-size: .75rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; }
.scene-rail a span { width: 0; overflow: hidden; white-space: nowrap; opacity: 0; padding: 5px 0; border: 1px solid transparent; border-radius: 999px; background: transparent; transition: width .35s var(--ease), padding .35s var(--ease), opacity .25s, background .25s, border-color .25s; }
.scene-rail a:hover span, .scene-rail a:focus-visible span, .scene-rail a.is-active span { width: 94px; padding-inline: 8px; opacity: 1; border-color: var(--line); background: color-mix(in srgb, var(--bg) 86%, transparent); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); }
.scene-rail a b { min-width: 22px; font-size: .75rem; font-weight: 700; text-align: right; }
.scene-rail a::after { content: ''; flex: 0 0 auto; width: 8px; height: 8px; border: 1.5px solid currentColor; border-radius: 50%; }
.scene-rail a.is-active { color: var(--ink); }
.scene-rail a.is-active::after { border-color: var(--accent-ui); background: var(--accent-ui); box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent-ui) 16%, transparent); }
.rail-line { position: absolute; top: 18px; right: 4px; bottom: 18px; width: 1px; z-index: -1; background: var(--line-strong); }
.rail-line i { display: block; width: 2px; height: 0; background: var(--accent-ui); transform: translateX(-.5px); }

.scene { position: relative; width: 100%; padding: 140px max(5vw, 28px); }
.scene-kicker { display: flex; align-items: center; gap: 14px; color: var(--muted); font-size: .75rem; font-weight: 700; letter-spacing: .11em; text-transform: uppercase; }
.scene-kicker span { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: var(--ink); letter-spacing: 0; }
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

/* Hero */
.hero {
  min-height: 100svh;
  padding-top: calc(var(--nav-h) + var(--nav-gap) + 70px);
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, .85fr);
  grid-template-rows: 1fr auto;
  align-items: center;
  gap: 34px;
  overflow: hidden;
}
.signal-field { position: absolute; inset: 0; z-index: -1; width: 100%; height: 100%; opacity: .85; }
.coordinate { position: absolute; color: var(--muted); font-size: .56rem; letter-spacing: .15em; writing-mode: vertical-rl; }
.coordinate-a { left: 16px; top: 36%; }
.coordinate-b { right: 16px; bottom: 12%; }
.hero-copy { z-index: 3; align-self: center; max-width: 920px; }
.eyebrow-row { display: flex; align-items: center; gap: 18px; margin-bottom: 34px; color: var(--soft); font-size: .75rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.live-status { display: inline-flex; align-items: center; gap: 9px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; background: rgba(var(--bg-rgb), .52); }
.live-status i, .contact-status i { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-ui); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent-ui) 14%, transparent); }
.hero-title { font-family: var(--font-display); font-size: clamp(4.7rem, 9.1vw, 10.6rem); font-weight: 500; line-height: .76; letter-spacing: -.065em; }
.title-line { display: block; overflow: hidden; padding: .08em 0 .14em; }
.title-line em { display: block; font-style: normal; transform: translateY(115%); animation: titleIn 1.05s var(--ease) forwards .15s; }
.title-line-shift { padding-left: clamp(30px, 7vw, 130px); color: var(--accent-text); }
.title-line-shift em { animation-delay: .29s; font-style: italic; text-shadow: 0 0 45px rgba(201,255,69,.12); }
@keyframes titleIn { to { transform: translateY(0); } }
.hero-bottom { max-width: 650px; margin-top: 38px; display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: end; }
.hero-bottom p { color: var(--soft); font-size: clamp(.98rem, 1.3vw, 1.16rem); }
.text-link { display: flex; align-items: center; gap: 14px; white-space: nowrap; font-size: .76rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
.text-link i { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; color: #101512; background: var(--acid); font-style: normal; transition: transform .35s var(--ease); }
.text-link:hover i { transform: rotate(-45deg) scale(1.08); }
.hero-stage { position: relative; z-index: 2; justify-self: center; width: min(39vw, 590px); aspect-ratio: .83; transform-style: preserve-3d; }
.portrait-object { position: absolute; inset: 5% 6% 2% 5%; overflow: hidden; border: 1px solid var(--line-strong); border-radius: 30px; background: linear-gradient(155deg, rgba(201,255,69,.12), rgba(var(--bg-rgb), .28)); box-shadow: 18px 18px 0 rgba(201,255,69,.65); transform: translate3d(var(--stage-x, 0), var(--stage-y, 0), 24px) rotate(-1.5deg); transition: transform .18s linear; }
.portrait-object::before { content: ''; position: absolute; inset: 0; z-index: 2; pointer-events: none; background: linear-gradient(120deg, rgba(255,255,255,.2), transparent 30%, transparent 68%, rgba(201,255,69,.12)); }
.portrait-object img { position: absolute; z-index: 1; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center top; filter: saturate(.88) contrast(1.03); }
.portrait-object figcaption { position: absolute; z-index: 3; left: 18px; right: 18px; bottom: 18px; display: flex; justify-content: space-between; padding: 10px 13px; border: 1px solid rgba(255,255,255,.2); border-radius: 999px; color: #f1f4ee; background: rgba(10,15,12,.62); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); font-size: .58rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.portrait-halo { position: absolute; inset: 18% -10% -20%; background: radial-gradient(circle, rgba(201,255,69,.25), transparent 62%); filter: blur(24px); }
.stage-orbit { position: absolute; border: 1px solid var(--line-strong); border-radius: 50%; pointer-events: none; }
.orbit-one { inset: 0 -16% 5%; transform: rotate(-18deg); }
.orbit-two { inset: 12% -28% -8%; border-style: dashed; transform: rotate(22deg); animation: orbitRotate 32s linear infinite; }
@keyframes orbitRotate { to { transform: rotate(382deg); } }
.stage-label { position: absolute; z-index: 4; padding: 7px 10px; border: 1px solid var(--line); color: var(--soft); background: var(--bg); font-size: .55rem; font-weight: 700; letter-spacing: .12em; }
.stage-label-a { top: 8%; left: -12%; transform: rotate(-5deg); }
.stage-label-b { top: 43%; right: -20%; transform: rotate(4deg); }
.stage-label-c { bottom: 8%; left: -8%; transform: rotate(3deg); }
.hero-metrics { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); max-width: 720px; border-top: 1px solid var(--line); }
.hero-metrics div { display: grid; grid-template-columns: auto 1fr; align-items: baseline; gap: 12px; padding: 18px 22px 0 0; }
.hero-metrics strong { font-family: var(--font-display); font-size: 1.8rem; font-weight: 500; }
.hero-metrics span { color: var(--muted); font-size: .75rem; text-transform: uppercase; letter-spacing: .07em; }
.scroll-signal { position: absolute; left: 50%; bottom: 25px; display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; transform: translateX(-50%); }
.scroll-signal i { position: relative; width: 24px; height: 36px; border: 1px solid var(--line-strong); border-radius: 999px; }
.scroll-signal i::after { content: ''; position: absolute; top: 7px; left: 50%; width: 3px; height: 7px; border-radius: 3px; background: var(--accent-ui); transform: translateX(-50%); animation: scrollDot 1.8s var(--ease) infinite; }
@keyframes scrollDot { 50% { transform: translate(-50%, 12px); opacity: .25; } }

/* Thinking scene */
.thinking { min-height: 110svh; }
.thinking-layout { max-width: var(--max); margin: 70px auto 0; display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(430px, .92fr); gap: clamp(60px, 9vw, 150px); align-items: center; }
.overline { margin-bottom: 22px; color: var(--muted); font-size: .72rem; font-weight: 700; letter-spacing: .11em; text-transform: uppercase; }
.kinetic-copy { font-family: var(--font-display); font-size: clamp(3.4rem, 6.1vw, 7.4rem); font-weight: 500; line-height: .89; letter-spacing: -.055em; }
.kinetic-copy span { display: block; }
.accent-word { color: var(--accent-text); font-style: italic; }
.thinking-note { max-width: 580px; margin: 34px 0 0 auto; padding-left: 24px; border-left: 1px solid var(--line-strong); color: var(--soft); }
.decision-map { position: relative; aspect-ratio: 1; max-width: 670px; border: 1px solid var(--line); overflow: hidden; background: rgba(var(--bg-rgb), .36); }
.map-grid, .contact-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(var(--ink-rgb), .07) 1px, transparent 1px), linear-gradient(90deg, rgba(var(--ink-rgb), .07) 1px, transparent 1px); background-size: 44px 44px; }
.decision-map::before, .decision-map::after { content: ''; position: absolute; inset: 12%; border: 1px solid var(--line); border-radius: 50%; }
.decision-map::after { inset: 29%; border-style: dashed; }
.map-core { position: absolute; z-index: 3; top: 50%; left: 50%; width: 150px; aspect-ratio: 1; display: grid; place-content: center; text-align: center; border-radius: 50%; color: #101512; background: var(--acid); transform: translate(-50%, -50%); box-shadow: 0 0 0 10px rgba(201,255,69,.11); transition: transform .4s var(--ease); }
.map-core span { font-size: .68rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.map-core strong { font-family: var(--font-display); font-size: 1.5rem; font-weight: 600; }
.map-node { position: absolute; z-index: 4; min-width: 110px; padding: 11px 14px; display: flex; align-items: center; gap: 10px; border: 1px solid var(--line-strong); color: var(--soft); background: var(--bg); transition: color .3s, background .3s, transform .35s var(--ease); }
.map-node span { font-size: .68rem; }
.map-node strong { font-size: .76rem; }
.map-node:hover, .map-node.is-active { color: #101512; background: var(--acid); transform: translateY(-4px); }
.node-people { top: 10%; left: 11%; }
.node-context { top: 13%; right: 8%; }
.node-system { left: 7%; bottom: 18%; }
.node-proof { right: 9%; bottom: 10%; }
.map-readout { position: absolute; z-index: 4; left: 22px; right: 22px; bottom: 20px; padding-top: 14px; border-top: 1px solid var(--line); color: var(--soft); font-size: .74rem; }

/* Case console */
.cases { padding-top: 150px; padding-bottom: 170px; }
.cases-intro { max-width: var(--max); margin: 66px auto 70px; display: grid; grid-template-columns: 1fr minmax(280px, 460px); gap: 60px; align-items: end; }
.cases-intro h2 { font-family: var(--font-display); font-size: clamp(4.1rem, 8vw, 9rem); font-weight: 500; line-height: .82; letter-spacing: -.065em; }
.cases-intro p { max-width: 420px; padding-left: 22px; border-left: 1px solid var(--line-strong); color: var(--soft); }
.case-console { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: 260px minmax(0, 1fr); border: 1px solid var(--line-strong); background: rgba(var(--bg-rgb), .4); box-shadow: 18px 18px 0 rgba(var(--ink-rgb), .08); }
.case-selector { display: flex; flex-direction: column; border-right: 1px solid var(--line-strong); }
.case-tab { position: relative; flex: 1; min-height: 128px; display: grid; grid-template-columns: 32px 1fr; gap: 6px; align-content: center; padding: 22px; text-align: left; border-bottom: 1px solid var(--line); transition: background .35s var(--ease), color .35s; }
.case-tab:last-child { border-bottom: 0; }
.case-tab span { grid-row: 1 / 3; color: var(--muted); font-size: .7rem; }
.case-tab strong { font-family: var(--font-display); font-size: 1.35rem; font-weight: 500; }
.case-tab small { color: var(--muted); font-size: .68rem; letter-spacing: .08em; }
.case-tab::after { content: '→'; position: absolute; right: 18px; top: 50%; opacity: 0; transform: translate(-8px,-50%); transition: opacity .3s, transform .3s; }
.case-tab:hover, .case-tab.is-active { color: #101512; background: var(--acid); }
.case-tab.is-active::after { opacity: 1; transform: translate(0,-50%); }
.case-deck { min-width: 0; }
.case-panel { min-height: 590px; display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(340px, .88fr); animation: caseEnter .55s var(--ease); }
.case-panel[hidden] { display: none; }
@keyframes caseEnter { from { opacity: 0; transform: translateX(18px); } }
.case-visual { position: relative; min-height: 590px; overflow: hidden; padding: 28px; color: #f4f5ef; background: #111714; }
.case-visual::before { content: ''; position: absolute; inset: 0; opacity: .36; background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px); background-size: 42px 42px; }
.visual-italdesign { background: linear-gradient(145deg, #131916, #27352d); }
.visual-deltatre { background: linear-gradient(145deg, #151414, #3b3527); }
.visual-telepass { background: linear-gradient(145deg, #101717, #173b43); }
.visual-code, .visual-caption { position: absolute; z-index: 3; font-size: .59rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }
.visual-code { top: 28px; left: 28px; }
.visual-caption { left: 28px; bottom: 26px; }
.visual-brand { position: absolute; z-index: 2; left: 8%; top: 50%; font-family: var(--font-sans); font-size: clamp(3.8rem, 7vw, 7.7rem); font-weight: 700; line-height: .73; letter-spacing: -.075em; transform: translateY(-50%); }
.visual-axis { position: absolute; right: 13%; top: 50%; width: 120px; height: 120px; transform: translateY(-50%); }
.visual-axis i { position: absolute; inset: 0; border: 1px solid var(--accent-ui); transform: rotate(calc(var(--i, 0) * 30deg)); }
.visual-axis i:nth-child(1) { --i: 0; }
.visual-axis i:nth-child(2) { --i: 1; }
.visual-axis i:nth-child(3) { --i: 2; }
.broadcast-lines { position: absolute; right: 10%; top: 50%; width: 190px; height: 190px; transform: translateY(-50%); }
.broadcast-lines i { position: absolute; inset: calc(var(--n) * 20px); border: 2px solid #e4bf67; border-left-color: transparent; border-bottom-color: transparent; border-radius: 50%; transform: rotate(45deg); }
.broadcast-lines i:nth-child(1) { --n: 0; }.broadcast-lines i:nth-child(2) { --n: 1; }.broadcast-lines i:nth-child(3) { --n: 2; }.broadcast-lines i:nth-child(4) { --n: 3; }
.route-line { position: absolute; right: 12%; top: 20%; bottom: 18%; width: 150px; }
.route-line i { position: absolute; top: 0; bottom: 0; left: 50%; width: 2px; background: repeating-linear-gradient(to bottom, var(--blue) 0 20px, transparent 20px 34px); transform: rotate(24deg); }
.route-line b { position: absolute; left: 25%; top: 50%; width: 50px; height: 50px; border: 2px solid var(--blue); background: #101717; transform: rotate(45deg); }
.case-content { display: flex; flex-direction: column; padding: clamp(34px, 4vw, 62px); background: var(--surface); }
.case-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: auto; }
.case-tags span { padding: 6px 9px; border: 1px solid var(--line); border-radius: 999px; color: var(--soft); font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.case-label { margin: 50px 0 10px; color: var(--muted); font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; }
.case-content h3 { font-family: var(--font-display); font-size: clamp(2.7rem, 4.2vw, 5.2rem); font-weight: 500; line-height: .88; letter-spacing: -.05em; }
.case-summary { margin-top: 23px; color: var(--soft); font-size: .93rem; }
.case-facts { margin-top: 36px; border-top: 1px solid var(--line); }
.case-facts div { display: grid; grid-template-columns: 90px 1fr; gap: 16px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: .75rem; }
.case-facts dt { color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
.case-cta { margin-top: 28px; display: flex; align-items: center; justify-content: space-between; padding: 14px 0; border-bottom: 1px solid var(--ink); font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; }
.case-cta i { font-style: normal; font-size: 1.1rem; transition: transform .3s var(--ease); }
.case-cta:hover i { transform: translate(4px,-4px); }

/* Method / system */
.system { padding-bottom: 180px; }
.system-head { max-width: var(--max); margin: 70px auto 100px; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr); align-items: end; gap: 80px; }
.system-head h2 { font-family: var(--font-display); font-size: clamp(4rem, 7.8vw, 9rem); font-weight: 500; line-height: .84; letter-spacing: -.065em; }
.system-head h2 em { color: var(--coral-text); font-style: italic; }
.system-head p { max-width: 450px; padding-left: 24px; border-left: 1px solid var(--line-strong); color: var(--soft); }
.system-stack { max-width: var(--max); margin: 0 auto; }
.system-card { position: sticky; top: calc(var(--nav-gap) + var(--nav-h) + 16px + var(--step) * 14px); min-height: 230px; display: grid; grid-template-columns: 120px 1fr auto; gap: 40px; align-items: center; padding: clamp(28px, 4vw, 60px); border: 1px solid var(--line-strong); background: color-mix(in srgb, var(--surface) 95%, var(--acid) 5%); box-shadow: 0 -8px 28px rgba(0,0,0,.05); }
.system-card:nth-child(2) { margin-top: 38px; background: color-mix(in srgb, var(--surface) 93%, var(--violet) 7%); }
.system-card:nth-child(3) { margin-top: 38px; background: color-mix(in srgb, var(--surface) 92%, var(--blue) 8%); }
.system-card:nth-child(4) { margin-top: 38px; background: color-mix(in srgb, var(--surface) 92%, var(--coral) 8%); }
.system-index { color: var(--muted); font-size: .72rem; font-weight: 700; letter-spacing: .1em; }
.system-card p { margin-bottom: 9px; color: var(--muted); font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
.system-card h3 { max-width: 760px; font-family: var(--font-display); font-size: clamp(2rem, 3.2vw, 4rem); font-weight: 500; line-height: .96; letter-spacing: -.035em; }
.system-card ul { display: flex; flex-direction: column; align-items: flex-end; gap: 7px; }
.system-card li { padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--soft); font-size: .7rem; text-transform: uppercase; letter-spacing: .06em; }
.about-snapshot { max-width: var(--max); margin: 140px auto 0; display: grid; grid-template-columns: 130px 1fr; gap: 48px; padding: 50px 0; border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); }
.snapshot-label { color: var(--muted); font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; }
.snapshot-copy { max-width: 1100px; font-family: var(--font-display); font-size: clamp(2rem, 3.6vw, 4.2rem); line-height: 1.03; letter-spacing: -.035em; }
.snapshot-meta { grid-column: 2; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 28px; }
.snapshot-meta span { display: flex; flex-direction: column; gap: 5px; color: var(--soft); font-size: .75rem; }
.snapshot-meta b { color: var(--muted); font-size: .68rem; letter-spacing: .1em; }

/* Contact */
.contact { min-height: 100svh; padding-top: calc(var(--nav-h) + var(--nav-gap) + 70px); padding-bottom: 30px; display: flex; flex-direction: column; overflow: hidden; color: var(--ink); background: var(--surface-2); transition: color .45s var(--ease), background .45s var(--ease); }
[data-theme="dark"] .contact { color: #eff3eb; background: #0b100e; }
.contact-grid { opacity: .45; }
.contact::before { content: ''; position: absolute; width: 70vw; aspect-ratio: 1; right: -25%; bottom: -45%; border-radius: 50%; background: radial-gradient(circle, rgba(201,255,69,.24), transparent 66%); filter: blur(50px); }
.contact-top, .contact-main, .contact-links, .contact-footer { position: relative; z-index: 2; }
.contact-top { display: flex; align-items: center; justify-content: space-between; }
.contact .scene-kicker { color: var(--muted); }
.contact .scene-kicker span { color: var(--ink); border-color: var(--line); }
[data-theme="dark"] .contact .scene-kicker { color: #89958c; }
[data-theme="dark"] .contact .scene-kicker span { color: #eff3eb; border-color: rgba(239,243,235,.2); }
.contact-status { display: flex; align-items: center; gap: 10px; color: var(--soft); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; }
[data-theme="dark"] .contact-status { color: #aeb9b1; }
.contact-main { margin: auto 0; padding: 80px 0; }
.contact-main > p { color: var(--muted); font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; }
[data-theme="dark"] .contact-main > p { color: #9da9a1; }
.contact-main h2 { margin: 18px 0 28px; font-family: var(--font-display); font-size: clamp(4.2rem, 10.8vw, 12.5rem); font-weight: 500; line-height: .69; letter-spacing: -.07em; }
.contact-main h2 span { display: block; }
.contact-main h2 span:nth-child(2) { color: var(--accent-text); font-style: italic; padding-left: 10vw; }
.contact-main h2 span:nth-child(3) { padding-left: 25vw; }
.contact-links { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.contact-links a { min-height: 60px; display: flex; align-items: center; justify-content: space-between; padding: 20px; border-right: 1px solid var(--line); font-size: .82rem; font-weight: 600; text-transform: uppercase; letter-spacing: .07em; transition: color .3s, background .3s; }
[data-theme="dark"] .contact-links { border-color: rgba(239,243,235,.2); }
[data-theme="dark"] .contact-links a { border-color: rgba(239,243,235,.2); }
.contact-links a:last-child { border-right: 0; }
.contact-links a:hover { color: #101512; background: var(--acid); }
.contact-links i { font-style: normal; font-size: 1.1rem; }
.contact-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 25px; color: var(--muted); font-size: .7rem; text-transform: uppercase; letter-spacing: .08em; }
[data-theme="dark"] .contact-footer { color: #89958c; }

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .glass-nav::before { background: rgba(var(--bg-rgb), .96); }
}

@media (max-width: 1100px) {
  .brand-role, .scene-rail { display: none; }
  .hero { grid-template-columns: minmax(0, 1fr) minmax(310px, .72fr); }
  .hero-title { font-size: clamp(4.4rem, 9.6vw, 8rem); }
  .thinking-layout { grid-template-columns: 1fr; }
  .decision-map { width: min(100%, 650px); margin-left: auto; }
  .case-panel { grid-template-columns: 1fr; }
  .case-visual { min-height: 420px; }
  .case-content { min-height: 520px; }
  .system-card { grid-template-columns: 82px 1fr; }
  .system-card ul { grid-column: 2; flex-direction: row; align-items: flex-start; }
}

@media (min-width: 1101px) {
  .scene { padding-right: max(13vw, 206px); }
  .coordinate-b { right: 194px; }
}

@media (max-width: 780px) {
  :root { --nav-gap: 8px; --nav-h: 58px; }
  .glass-nav { grid-template-columns: 1fr auto; padding: 0 10px 0 12px; }
  .brand-symbol { width: 30px; height: 30px; }
  .brand-word { font-size: 1.05rem; }
  .main-nav { position: fixed; top: calc(var(--nav-gap) + var(--nav-h) + 8px); left: var(--nav-gap); right: var(--nav-gap); display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 12px; border: 1px solid var(--line); border-radius: 22px; background: rgba(var(--bg-rgb), .94); -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px); box-shadow: 0 18px 60px rgba(0,0,0,.18); }
  .main-nav.is-open { display: flex; }
  .main-nav a { padding: 14px 10px; border-bottom: 1px solid var(--line); font-size: .85rem; }
  .main-nav a:last-child { border-bottom: 0; }
  .main-nav a::after { display: none; }
  .menu-switch { display: grid; }
  .menu-switch[aria-expanded="true"] span:first-child { transform: translateY(3px) rotate(45deg); }
  .menu-switch[aria-expanded="true"] span:last-child { transform: translateY(-3px) rotate(-45deg); }
  .language-switch span { width: 29px; }
  .theme-switch, .language-switch { height: 34px; }
  .theme-switch { width: 34px; }
  .scene { padding-left: 20px; padding-right: 20px; }
  .hero { min-height: auto; padding-top: 110px; grid-template-columns: 1fr; grid-template-rows: auto auto auto; gap: 38px; }
  .hero-title { font-size: clamp(4rem, 18vw, 6.4rem); line-height: .79; }
  .title-line-shift { padding-left: 6vw; }
  .hero-bottom { grid-template-columns: 1fr; }
  .text-link { width: max-content; }
  .hero-stage { grid-row: 2; width: min(92vw, 500px); }
  .stage-label-b { right: -7%; }
  .stage-label-a { left: -4%; }
  .hero-metrics { grid-row: 3; grid-template-columns: 1fr; }
  .hero-metrics div { grid-template-columns: 56px 1fr; padding: 11px 0; border-bottom: 1px solid var(--line); }
  .scroll-signal { display: none; }
  .thinking, .cases, .system { padding-top: 110px; }
  .thinking-layout { margin-top: 50px; gap: 60px; }
  .kinetic-copy { font-size: clamp(3.4rem, 14vw, 5.6rem); }
  .decision-map { aspect-ratio: .86; }
  .map-core { width: 118px; }
  .map-node { min-width: auto; }
  .map-readout { font-size: .68rem; }
  .cases-intro, .system-head { grid-template-columns: 1fr; gap: 30px; margin-top: 50px; }
  .cases-intro h2 { font-size: clamp(4rem, 17vw, 6rem); }
  .case-console { grid-template-columns: 1fr; box-shadow: 8px 8px 0 rgba(var(--ink-rgb), .08); }
  .case-selector { flex-direction: row; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--line-strong); }
  .case-tab { min-width: 205px; min-height: 92px; border-right: 1px solid var(--line); border-bottom: 0; }
  .case-panel { min-height: 0; }
  .case-visual { min-height: 390px; }
  .case-content { min-height: auto; }
  .case-tags { margin-bottom: 0; }
  .system-head h2 { font-size: clamp(3.7rem, 15vw, 6rem); }
  .system-card { position: relative; top: auto; min-height: 0; grid-template-columns: 1fr; gap: 20px; margin-top: 16px !important; padding: 28px 22px; }
  .system-card ul { grid-column: 1; align-items: flex-start; flex-wrap: wrap; }
  .about-snapshot { grid-template-columns: 1fr; gap: 24px; margin-top: 90px; }
  .snapshot-meta { grid-column: 1; grid-template-columns: repeat(2,1fr); }
  .contact { padding-top: 100px; }
  .contact-top { align-items: flex-start; gap: 24px; }
  .contact-status { max-width: 180px; }
  .contact-main { padding: 90px 0; }
  .contact-main h2 { font-size: clamp(4.2rem, 18vw, 7rem); line-height: .74; }
  .contact-main h2 span:nth-child(2) { padding-left: 4vw; }
  .contact-main h2 span:nth-child(3) { padding-left: 9vw; }
  .contact-links { grid-template-columns: 1fr; }
  .contact-links a { border-right: 0; border-bottom: 1px solid var(--line); }
  [data-theme="dark"] .contact-links a { border-bottom-color: rgba(239,243,235,.2); }
  .contact-links a:last-child { border-bottom: 0; }
  .contact-footer { flex-wrap: wrap; }
}

@media (max-width: 480px) {
  .brand-word { display: none; }
  .eyebrow-row { align-items: flex-start; flex-direction: column; gap: 10px; }
  .hero-title { font-size: 17.5vw; }
  .portrait-object { box-shadow: 9px 9px 0 rgba(201,255,69,.65); }
  .orbit-one { inset-inline: -7%; }
  .orbit-two { inset-inline: -12%; }
  .decision-map { aspect-ratio: .78; }
  .node-people { left: 5%; }.node-context { right: 4%; }.node-system { left: 4%; }.node-proof { right: 4%; }
  .map-node { padding: 9px; }
  .map-node strong { font-size: .72rem; }
  .case-visual { min-height: 330px; }
  .visual-brand { font-size: 18vw; }
  .visual-axis, .broadcast-lines, .route-line { opacity: .55; right: -5%; }
  .snapshot-meta { grid-template-columns: 1fr; }
}

/* Reactive cursor shared with the case studies. */
.cursor-dot,
.cursor-ring {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 9999;
  border-radius: 50%;
  pointer-events: none;
  mix-blend-mode: multiply;
  opacity: 0;
  transition: opacity .3s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
  will-change: transform;
}
.cursor-dot.is-active,
.cursor-ring.is-active { opacity: 1; }
.cursor-dot { width: 7px; height: 7px; margin: -3.5px 0 0 -3.5px; background: #2d3a33; }
.cursor-ring { width: 36px; height: 36px; margin: -18px 0 0 -18px; border: 1.5px solid #2d3a33; }
.cursor-ring.is-hover { background: rgba(45, 58, 51, .1); }
.cursor-ring.is-click { background: rgba(45, 58, 51, .28); }
[data-theme="dark"] .cursor-dot,
[data-theme="dark"] .cursor-ring { mix-blend-mode: difference; }
[data-theme="dark"] .cursor-dot { background: #fff; }
[data-theme="dark"] .cursor-ring { border-color: #fff; }
[data-theme="dark"] .cursor-ring.is-hover { background: rgba(255, 255, 255, .1); }
[data-theme="dark"] .cursor-ring.is-click { background: rgba(255, 255, 255, .28); }
html.has-custom-cursor,
html.has-custom-cursor * { cursor: none !important; }

@media (hover: none), (pointer: coarse), (prefers-reduced-motion: reduce) {
  .cursor-dot,
  .cursor-ring { display: none; }
  html.has-custom-cursor,
  html.has-custom-cursor * { cursor: auto !important; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .title-line em { transform: none; }
  .reveal { opacity: 1; transform: none; }
}

@media (prefers-reduced-transparency: reduce) {
  .glass-nav::before { background: var(--bg); -webkit-backdrop-filter: none; backdrop-filter: none; }
}