/* Advanced Finance — 2026 site. Hand-written CSS; three.js (hero) and Lenis (smooth scroll) self-hosted. */
:root {
  --bg: #04070d;
  --bg-2: #0a1020;
  --panel: rgba(16, 24, 44, 0.62);
  --panel-solid: #0e1630;
  --line: rgba(148, 170, 220, 0.14);
  --line-strong: rgba(148, 170, 220, 0.30);
  --text: #eef2fa;
  --muted: #a0abc3;
  --faint: #6b7896;
  --gold: #e3b95f;
  --gold-2: #f6dc96;
  --teal: #3ee6c4;
  --blue: #5b8cff;
  --violet: #a77bff;
  --grad: linear-gradient(120deg, var(--gold-2) 0%, var(--gold) 28%, var(--teal) 70%, var(--blue) 100%);
  --radius: 24px;
  --display: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --maxw: 1240px;
  --ease: cubic-bezier(.2, .8, .2, 1);
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--sans); font-size: 17px; line-height: 1.7;
  -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
::selection { background: rgba(227, 185, 95, 0.35); color: #fff; }
.wrap { width: min(var(--maxw), 100% - 32px); margin-inline: auto; }
h1, h2, h3 { font-family: var(--display); font-weight: 400; line-height: 1.06; letter-spacing: -0.022em; margin: 0; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; background-size: 200% auto; animation: sheen 8s linear infinite; }
@keyframes sheen { to { background-position: 200% center; } }
.grain { position: fixed; inset: 0; z-index: 90; pointer-events: none; opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }

/* ───── preloader ───── */
.preloader { position: fixed; inset: 0; z-index: 200; background: #03060b; display: grid; place-items: center;
  clip-path: inset(0 0 0 0); transition: clip-path 1.1s cubic-bezier(.76, 0, .24, 1); }
.preloader.done { clip-path: inset(0 0 100% 0); }
.preloader.skip { display: none; }
.pl-inner { text-align: center; }
.pl-mark { width: 64px; height: 64px; margin: 0 auto 26px; border-radius: 18px; background: var(--grad); display: grid; place-items: center;
  box-shadow: 0 0 60px rgba(227, 185, 95, 0.45); animation: plpulse 1.6s ease-in-out infinite; }
.pl-mark svg { width: 34px; height: 34px; }
@keyframes plpulse { 50% { transform: scale(.92); box-shadow: 0 0 90px rgba(62, 230, 196, 0.5); } }
.pl-name { font-family: var(--display); font-size: 28px; letter-spacing: .5px; }
.pl-count { font-family: var(--display); font-size: clamp(70px, 12vw, 150px); line-height: 1; margin-top: 18px;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; font-variant-numeric: tabular-nums; }
.pl-bar { width: 220px; height: 2px; background: var(--line); margin: 22px auto 0; overflow: hidden; border-radius: 2px; }
.pl-bar i { display: block; height: 100%; width: 0; background: var(--grad); }

/* ───── cursor ───── */
.cursor-glow { position: fixed; left: 0; top: 0; width: 560px; height: 560px; margin: -280px 0 0 -280px; border-radius: 50%; pointer-events: none; z-index: 1;
  background: radial-gradient(circle, rgba(227, 185, 95, 0.09), rgba(62, 230, 196, 0.05) 40%, transparent 68%); opacity: 0; transition: opacity .5s; will-change: transform; }
.cursor-glow.on { opacity: 1; }
.cursor-dot { position: fixed; left: 0; top: 0; width: 8px; height: 8px; margin: -4px 0 0 -4px; border-radius: 50%; background: var(--gold-2); z-index: 150;
  pointer-events: none; mix-blend-mode: difference; transition: width .25s var(--ease), height .25s var(--ease), margin .25s var(--ease), opacity .3s; opacity: 0; }
.cursor-dot.on { opacity: 1; }
.cursor-dot.big { width: 54px; height: 54px; margin: -27px 0 0 -27px; background: #fff; }

/* ───── nav ───── */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; transition: background .4s, border-color .4s, transform .5s var(--ease); border-bottom: 1px solid transparent; }
.nav.scrolled { background: rgba(4, 7, 13, 0.7); backdrop-filter: blur(18px) saturate(140%); -webkit-backdrop-filter: blur(18px) saturate(140%); border-color: var(--line); }
.nav.hidden { transform: translateY(-100%); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 78px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 600; }
.brand-mark { width: 36px; height: 36px; border-radius: 11px; background: var(--grad); display: grid; place-items: center; box-shadow: 0 0 30px rgba(227, 185, 95, 0.35); }
.brand-mark svg { width: 20px; height: 20px; }
.brand-name { font-family: var(--display); font-size: 22px; font-weight: 500; }
.brand-name em { font-style: normal; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.menu { display: flex; gap: 4px; align-items: center; list-style: none; margin: 0; padding: 0; }
.menu a { padding: 9px 14px; border-radius: 999px; color: var(--muted); font-size: 15px; transition: color .25s, background .25s; position: relative; }
.menu a:hover, .menu a[aria-current="page"] { color: var(--text); background: rgba(255, 255, 255, 0.06); }
.menu .cta-sm { color: #0b0f19; background: var(--grad); font-weight: 600; margin-left: 8px; }
.menu .cta-sm:hover { color: #0b0f19; background: var(--grad); filter: brightness(1.08); }
.burger { display: none; background: none; border: 0; width: 44px; height: 44px; cursor: pointer; }
.burger span { display: block; height: 2px; width: 22px; margin: 5px auto; background: var(--text); transition: transform .3s, opacity .3s; }
.nav.open .burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.open .burger span:nth-child(2) { opacity: 0; }
.nav.open .burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ───── buttons ───── */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 16px 28px; border-radius: 999px; font-weight: 600; font-size: 16px; position: relative; overflow: hidden; isolation: isolate;
  transition: transform .2s var(--ease), box-shadow .3s, border-color .3s; will-change: transform; }
.btn svg { width: 18px; height: 18px; transition: transform .3s var(--ease); }
.btn:hover svg { transform: translateX(4px); }
.btn-primary { color: #0b0f19; background: var(--grad); box-shadow: 0 14px 44px -14px rgba(227, 185, 95, 0.7); }
.btn-primary::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.55) 50%, transparent 70%);
  transform: translateX(-120%); transition: transform .8s var(--ease); }
.btn-primary:hover::after { transform: translateX(120%); }
.btn-primary:hover { box-shadow: 0 22px 54px -14px rgba(62, 230, 196, 0.6); }
.btn-ghost { color: var(--text); border: 1px solid var(--line-strong); background: rgba(255, 255, 255, 0.04); backdrop-filter: blur(8px); }
.btn-ghost:hover { border-color: var(--gold); }

/* ───── home hero ───── */
.hero { position: relative; height: 100svh; min-height: 680px; display: flex; align-items: center; overflow: hidden; }
.hero-photo { position: absolute; inset: -6%; z-index: 0; background-size: cover; background-position: center; transform-origin: 60% 50%; animation: kenburns 30s ease-in-out infinite alternate; will-change: transform; }
@keyframes kenburns { from { transform: scale(1.04) translate3d(0, 0, 0); } to { transform: scale(1.16) translate3d(-2%, -1.5%, 0); } }
.hero-shade { position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(90deg, rgba(4, 7, 13, 0.94) 0%, rgba(4, 7, 13, 0.72) 42%, rgba(4, 7, 13, 0.30) 75%, rgba(4, 7, 13, 0.55) 100%),
              linear-gradient(0deg, var(--bg) 0%, rgba(4, 7, 13, 0) 40%); }
#hero3d { position: absolute; inset: 0; z-index: 2; width: 100%; height: 100%; mix-blend-mode: screen; }
.hero .wrap { position: relative; z-index: 3; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; padding: 7px 16px 7px 8px; border-radius: 999px; font-size: 13.5px; color: var(--muted);
  border: 1px solid var(--line); background: rgba(10, 16, 32, 0.55); backdrop-filter: blur(8px); letter-spacing: .3px; }
.eyebrow .dot { width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; background: rgba(62, 230, 196, 0.14); }
.eyebrow .dot::after { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 12px var(--teal); animation: pulse 2s infinite; }
@keyframes pulse { 50% { transform: scale(.6); opacity: .6; } }
.hero h1 { font-size: clamp(48px, 8.2vw, 124px); margin: 26px 0 28px; max-width: 12ch; }
.hero .lead { font-size: clamp(18px, 1.55vw, 21px); color: #c3cbe0; max-width: 56ch; margin: 0 0 42px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.word { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .08em; margin-bottom: -.08em; }
.word > span { display: inline-block; transform: translateY(105%) rotate(4deg); transform-origin: left bottom; transition: transform 1.2s var(--ease); }
.ready .word > span { transform: none; }
.fade-up { opacity: 0; transform: translateY(26px); transition: opacity 1.1s var(--ease), transform 1.1s var(--ease); }
.ready .fade-up { opacity: 1; transform: none; }
.hero-meta { position: absolute; z-index: 3; bottom: 34px; left: 0; right: 0; }
.hero-meta .wrap { display: flex; justify-content: space-between; align-items: flex-end; color: var(--faint); font-size: 13px; letter-spacing: 2px; text-transform: uppercase; }
.scroll-cue { display: inline-flex; align-items: center; gap: 12px; }
.scroll-cue i { width: 1px; height: 46px; background: linear-gradient(var(--gold), transparent); position: relative; overflow: hidden; }
.scroll-cue i::after { content: ""; position: absolute; left: 0; top: -40%; width: 1px; height: 40%; background: #fff; animation: cue 1.8s infinite; }
@keyframes cue { to { top: 100%; } }

/* ───── kinetic type ───── */
.kinetic { padding: 70px 0 40px; overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: linear-gradient(180deg, rgba(10, 16, 32, 0.5), transparent); }
.kinetic-row { display: flex; gap: 60px; white-space: nowrap; width: max-content; will-change: transform; font-family: var(--display); font-size: clamp(56px, 9vw, 140px); line-height: 1.05; }
.kinetic-row span { color: transparent; -webkit-text-stroke: 1px rgba(200, 212, 240, 0.35); }
.kinetic-row span.solid { -webkit-text-stroke: 0; background: var(--grad); -webkit-background-clip: text; background-clip: text; }
.kinetic-row + .kinetic-row { margin-top: 6px; }

/* ───── sections ───── */
section { position: relative; }
.section { padding: clamp(90px, 12vw, 170px) 0; }
.kicker { font-size: 13px; letter-spacing: 3px; text-transform: uppercase; color: var(--gold); font-weight: 600; margin-bottom: 20px; display: inline-flex; align-items: center; gap: 12px; }
.kicker::before { content: ""; width: 28px; height: 1px; background: var(--gold); }
.section h2 { font-size: clamp(38px, 5vw, 72px); max-width: 17ch; }
.sub { color: var(--muted); font-size: 19px; max-width: 60ch; margin-top: 24px; }

/* reveals */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 1.1s var(--ease), transform 1.1s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.d1 { transition-delay: .08s !important; } .d2 { transition-delay: .16s !important; } .d3 { transition-delay: .24s !important; } .d4 { transition-delay: .32s !important; }
.img-reveal { position: relative; overflow: hidden; border-radius: var(--radius); clip-path: inset(100% 0 0 0 round var(--radius)); transition: clip-path 1.4s cubic-bezier(.76, 0, .24, 1); }
.img-reveal.in { clip-path: inset(0 0 0 0 round var(--radius)); }
.img-reveal img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.3); transition: transform 2s var(--ease); }
.img-reveal.in img { transform: scale(1.06); }
[data-speed] { will-change: transform; }

/* ───── about ───── */
.about { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 100px); align-items: center; }
.about-media { position: relative; }
.about-media .img-reveal { aspect-ratio: 4/5; }
.about-media .badge { position: absolute; right: -24px; bottom: 40px; padding: 22px 26px; border-radius: 20px; background: rgba(10, 16, 32, 0.78); backdrop-filter: blur(16px);
  border: 1px solid var(--line-strong); box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.7); }
.badge .num { font-family: var(--display); font-size: 54px; line-height: 1; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.badge .lbl { color: var(--muted); font-size: 14px; margin-top: 6px; }
.about-copy p { color: var(--muted); font-size: 18px; margin: 0 0 18px; }
.about-copy p strong { color: var(--text); }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 34px; }
.stat { padding: 22px; border-radius: 18px; background: var(--panel); border: 1px solid var(--line); }
.stat .num { font-family: var(--display); font-size: clamp(34px, 3.4vw, 46px); line-height: 1; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; font-variant-numeric: tabular-nums; }
.stat .lbl { color: var(--muted); font-size: 14px; margin-top: 8px; }

/* ───── horizontal research showcase ───── */
.hscroll { position: relative; }
.hs-sticky { position: sticky; top: 0; height: 100vh; overflow: hidden; display: flex; flex-direction: column; justify-content: center; }
.hs-head { margin-bottom: 40px; display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; }
.hs-progress { width: 220px; height: 2px; background: var(--line); border-radius: 2px; overflow: hidden; flex-shrink: 0; }
.hs-progress i { display: block; height: 100%; width: 0; background: var(--grad); }
.hs-track { display: flex; gap: 28px; padding-left: max(16px, calc((100vw - var(--maxw)) / 2)); padding-right: 10vw; will-change: transform; }
.panel { position: relative; flex: 0 0 min(76vw, 860px); height: min(62vh, 560px); border-radius: 28px; overflow: hidden; isolation: isolate; border: 1px solid var(--line-strong); }
.panel img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; transform: scale(1.12); transition: transform 1.6s var(--ease); }
.panel:hover img { transform: scale(1.02); }
.panel::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(0deg, rgba(4, 7, 13, 0.95) 0%, rgba(4, 7, 13, 0.55) 45%, rgba(4, 7, 13, 0.15) 100%); }
.panel-body { position: absolute; left: 0; right: 0; bottom: 0; padding: clamp(26px, 3.6vw, 48px); }
.panel .pnum { position: absolute; top: 28px; left: clamp(26px, 3.6vw, 48px); font-family: var(--display); font-size: 18px; color: var(--gold-2); letter-spacing: 2px; }
.panel .picon { position: absolute; top: 24px; right: 28px; width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center; background: rgba(10, 16, 32, 0.6); border: 1px solid var(--line-strong); backdrop-filter: blur(10px); }
.panel .picon svg { width: 28px; height: 28px; stroke: var(--gold-2); }
.panel h3 { font-size: clamp(34px, 4.2vw, 60px); margin-bottom: 14px; }
.panel p { color: #c7cfe2; max-width: 52ch; margin: 0 0 22px; font-size: 17.5px; }
.more { color: var(--gold-2); font-weight: 600; font-size: 15px; display: inline-flex; align-items: center; gap: 8px; }
.more svg { width: 16px; height: 16px; transition: transform .3s var(--ease); }
a:hover .more svg { transform: translateX(6px); }

/* ───── NLP live demo ───── */
.demo { display: grid; grid-template-columns: 1.12fr .88fr; gap: 22px; margin-top: 60px; }
.wire, .template { border-radius: var(--radius); background: var(--panel); border: 1px solid var(--line); backdrop-filter: blur(14px); position: relative; overflow: hidden; }
.wire { padding: 28px 32px 34px; }
.wire-head, .tpl-head { display: flex; align-items: center; justify-content: space-between; font-size: 12.5px; letter-spacing: 2.5px; text-transform: uppercase; color: var(--faint); margin-bottom: 24px; }
.live { display: inline-flex; align-items: center; gap: 8px; color: var(--teal); }
.live::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 10px var(--teal); animation: pulse 1.6s infinite; }
.wire-text { font-family: var(--display); font-size: clamp(26px, 2.7vw, 40px); line-height: 1.32; min-height: 4.1em; }
.wire-text .caret { display: inline-block; width: 2px; height: 1em; margin-left: 3px; vertical-align: -0.12em; background: var(--gold); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.wire-text mark { color: inherit; background: none; border-radius: 6px; padding: 0 3px; transition: background .5s, box-shadow .5s; }
.wire-text mark.hl { background: var(--hl-bg); box-shadow: inset 0 -2px 0 var(--hl); }
.wire-scan { position: absolute; left: 0; right: 0; height: 80px; top: -80px; pointer-events: none; background: linear-gradient(to bottom, transparent, rgba(62, 230, 196, 0.12), transparent); }
.wire-scan.go { animation: scan 1.3s ease-in-out; }
@keyframes scan { to { top: 100%; } }
.wire-note { margin-top: 20px; color: var(--faint); font-size: 13.5px; }
.template { padding: 28px 28px 20px; }
.field { display: grid; grid-template-columns: 124px 1fr; gap: 14px; align-items: center; padding: 15px 10px; margin: 0 -10px; border-bottom: 1px dashed var(--line); border-radius: 10px; }
.field:last-of-type { border-bottom: 0; }
.field .k { font-size: 12.5px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--faint); display: flex; align-items: center; gap: 8px; }
.field .k::before { content: ""; width: 9px; height: 9px; border-radius: 3px; background: var(--hl); box-shadow: 0 0 10px var(--hl); }
.field .v { font-weight: 600; min-height: 1.6em; }
.field .v.empty { color: var(--faint); font-weight: 400; }
.field.pop { animation: pop .8s var(--ease); }
@keyframes pop { 0% { background: var(--hl-bg); } 100% { background: transparent; } }
.demo-dots { display: flex; gap: 8px; margin-top: 16px; }
.demo-dots button { width: 26px; height: 4px; border-radius: 4px; border: 0; padding: 0; cursor: pointer; background: var(--line-strong); transition: background .3s, width .3s; }
.demo-dots button.on { width: 46px; background: var(--gold); }

/* ───── book ───── */
.book { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(40px, 7vw, 110px); align-items: center; }
.book-cover { perspective: 1400px; justify-self: center; position: relative; }
.book-cover::before { content: ""; position: absolute; inset: 10% -20%; background: radial-gradient(closest-side, rgba(227, 185, 95, 0.35), transparent); filter: blur(30px); z-index: -1; }
.book-cover .cover { width: min(350px, 72vw); aspect-ratio: 2/3; border-radius: 6px 14px 14px 6px; overflow: hidden; position: relative;
  transform: rotateY(-20deg) rotateX(5deg); transition: transform .9s var(--ease); box-shadow: 34px 44px 90px -24px rgba(0, 0, 0, 0.9); }
.book-cover .cover img { width: 100%; height: 100%; object-fit: cover; }
.book-cover .cover::after { content: ""; position: absolute; inset: 0; background: linear-gradient(105deg, rgba(255, 255, 255, 0.22), transparent 32%, transparent 70%, rgba(0, 0, 0, 0.28)); }
.book-cover:hover .cover { transform: rotateY(-4deg) rotateX(0deg) translateY(-8px); }
.meta-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0 26px; }
.chip { padding: 7px 14px; border-radius: 999px; font-size: 13.5px; color: var(--muted); border: 1px solid var(--line); background: rgba(255, 255, 255, 0.03); }
.chip.gold { color: var(--gold-2); border-color: rgba(227, 185, 95, 0.35); }
.book p { color: var(--muted); font-size: 17.5px; }

/* ───── cards / people ───── */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; margin-top: 56px; }
.card { position: relative; padding: 32px 30px 30px; border-radius: var(--radius); background: var(--panel); border: 1px solid var(--line); backdrop-filter: blur(14px);
  overflow: hidden; isolation: isolate; transition: border-color .3s; display: flex; flex-direction: column; transform-style: preserve-3d; will-change: transform; }
.card::before { content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0; transition: opacity .35s;
  background: radial-gradient(460px circle at var(--mx, 50%) var(--my, 50%), rgba(227, 185, 95, 0.18), transparent 45%); }
.card::after { content: ""; position: absolute; inset: 0; z-index: 2; pointer-events: none; opacity: 0; transition: opacity .35s;
  background: linear-gradient(115deg, transparent 35%, rgba(255, 255, 255, 0.09) 50%, transparent 65%); background-size: 250% 250%; background-position: var(--gx, 50%) 50%; }
.card:hover { border-color: var(--line-strong); }
.card:hover::before, .card:hover::after { opacity: 1; }
.card .icon { width: 54px; height: 54px; border-radius: 16px; display: grid; place-items: center; margin-bottom: 26px;
  background: linear-gradient(140deg, rgba(227, 185, 95, 0.18), rgba(62, 230, 196, 0.12)); border: 1px solid var(--line-strong); }
.card .icon svg { width: 26px; height: 26px; stroke: var(--gold-2); }
.card h3 { font-size: 27px; margin-bottom: 12px; }
.card p { color: var(--muted); margin: 0 0 22px; font-size: 16px; flex: 1; }
.people { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 22px; margin-top: 56px; }
.person { padding: 38px; }
.avatar { width: 84px; height: 84px; border-radius: 50%; display: grid; place-items: center; font-family: var(--display); font-size: 31px; color: #0b0f19;
  background: var(--grad); margin-bottom: 26px; position: relative; }
.avatar::after { content: ""; position: absolute; inset: -8px; border-radius: 50%; border: 1px solid rgba(227, 185, 95, 0.4); animation: ring 3s ease-in-out infinite; }
@keyframes ring { 50% { inset: -14px; opacity: .3; } }
.person h3 { font-size: 32px; }
.person .role { color: var(--gold-2); font-size: 14.5px; letter-spacing: .4px; margin: 6px 0 18px; }
.person p { color: var(--muted); font-size: 16px; }

/* split image band */
.band { position: relative; height: clamp(320px, 55vh, 560px); overflow: hidden; border-radius: 32px; }
.band img { position: absolute; inset: -15% 0; width: 100%; height: 130%; object-fit: cover; }
.band::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4, 7, 13, 0.92), rgba(4, 7, 13, 0.35)); }
.band .band-copy { position: absolute; inset: 0; z-index: 2; display: flex; flex-direction: column; justify-content: center; padding: clamp(28px, 6vw, 80px); max-width: 760px; }
.band h2 { font-size: clamp(34px, 4.4vw, 62px); }

/* timeline */
.split { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(40px, 6vw, 90px); }
.timeline { position: relative; padding-left: 36px; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(var(--gold), var(--teal), transparent); border-radius: 2px;
  transform-origin: top; transform: scaleY(var(--tl, 1)); }
.tl-item { position: relative; padding: 0 0 36px; }
.tl-item::before { content: ""; position: absolute; left: -33px; top: 8px; width: 12px; height: 12px; border-radius: 50%; background: var(--bg); border: 2px solid var(--gold); box-shadow: 0 0 14px rgba(227, 185, 95, 0.6); }
.tl-year { font-family: var(--display); color: var(--gold-2); font-size: 18px; }
.tl-item h4 { margin: 4px 0 6px; font-size: 19px; font-weight: 600; line-height: 1.4; }
.tl-item h4 a { background-image: linear-gradient(var(--gold), var(--gold)); background-size: 0 1px; background-repeat: no-repeat; background-position: 0 100%; transition: background-size .4s; }
.tl-item h4 a:hover { background-size: 100% 1px; }
.tl-item p { margin: 0; color: var(--muted); font-size: 15.5px; }
.tag-pdf { display: inline-flex; margin-left: 10px; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; letter-spacing: .5px; color: var(--teal); border: 1px solid rgba(62, 230, 196, 0.35); vertical-align: middle; }

/* CTA */
.cta { position: relative; overflow: hidden; border-radius: 36px; text-align: center; padding: clamp(70px, 10vw, 140px) clamp(24px, 6vw, 80px); border: 1px solid var(--line-strong); isolation: isolate; }
.cta > img { position: absolute; inset: -15% 0; width: 100%; height: 130%; object-fit: cover; z-index: -2; }
.cta::before { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(ellipse at center, rgba(4, 7, 13, 0.55), rgba(4, 7, 13, 0.92)); }
.cta h2 { font-size: clamp(38px, 5.6vw, 80px); max-width: 15ch; margin: 0 auto 22px; }
.cta p { color: #c3cbe0; font-size: 19px; max-width: 54ch; margin: 0 auto 38px; }
.cta .hero-actions { justify-content: center; }

/* ───── inner page hero ───── */
.page-hero { position: relative; height: clamp(520px, 78vh, 760px); display: flex; align-items: flex-end; overflow: hidden; padding-bottom: clamp(50px, 7vw, 90px); }
.page-hero .ph-img { position: absolute; inset: -10% 0; z-index: 0; }
.page-hero .ph-img img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.08); animation: phzoom 2.4s var(--ease) both; }
@keyframes phzoom { from { transform: scale(1.25); filter: blur(6px); } }
.page-hero::after { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(0deg, var(--bg) 0%, rgba(4, 7, 13, 0.75) 38%, rgba(4, 7, 13, 0.45) 100%),
  linear-gradient(90deg, rgba(4, 7, 13, 0.75), transparent 70%); }
.page-hero .wrap { position: relative; z-index: 2; }
.page-hero h1 { font-size: clamp(46px, 7vw, 104px); max-width: 15ch; }
.page-hero .sub { color: #c3cbe0; font-size: clamp(18px, 1.5vw, 21px); }
.crumbs { font-size: 14px; color: var(--muted); margin-bottom: 26px; letter-spacing: .3px; }
.crumbs a:hover { color: var(--gold-2); }

/* article */
.article { display: grid; grid-template-columns: minmax(0, 1fr) 290px; gap: 80px; padding: 60px 0 120px; }
.prose { font-size: 18.5px; color: #cfd7e8; max-width: 72ch; }
.prose p { margin: 0 0 1.3em; }
.prose h2 { font-size: clamp(30px, 3vw, 42px); margin: 1.9em 0 .7em; color: var(--text); }
.prose h2:first-child { margin-top: 0; }
.prose ul, .prose ol { padding-left: 1.2em; margin: 0 0 1.4em; }
.prose li { margin: .5em 0; }
.prose li::marker { color: var(--gold); }
.prose strong { color: var(--text); }
.prose blockquote { margin: 1.8em 0; padding: 30px 34px; border-left: 3px solid var(--gold); border-radius: 0 18px 18px 0; background: var(--panel);
  font-family: var(--display); font-size: clamp(22px, 2.2vw, 28px); line-height: 1.4; color: var(--text); }
.prose .lede { font-size: clamp(21px, 1.9vw, 25px); color: var(--text); line-height: 1.55; }
.prose a { color: var(--gold-2); }
.aside { position: sticky; top: 110px; align-self: start; display: flex; flex-direction: column; gap: 14px; }
.aside .box { padding: 24px; border-radius: 18px; background: var(--panel); border: 1px solid var(--line); }
.aside h5 { margin: 0 0 12px; font-size: 12.5px; letter-spacing: 2.5px; text-transform: uppercase; color: var(--gold); }
.side-link { display: block; padding: 9px 0; color: var(--muted); font-size: 15px; border-bottom: 1px solid var(--line); transition: color .2s, padding .25s var(--ease); }
.side-link:last-child { border-bottom: 0; }
.side-link:hover, .side-link[aria-current="page"] { color: var(--text); padding-left: 8px; }
.progress { position: fixed; top: 0; left: 0; height: 3px; width: 0; z-index: 120; background: var(--grad); box-shadow: 0 0 12px rgba(227, 185, 95, 0.7); }
.pub-list { list-style: none; padding: 0; margin: 0; }
.pub-list li { padding: 20px 0; border-bottom: 1px solid var(--line); }
.pub-list .t { color: var(--text); font-weight: 600; }
.pub-list .t a { color: var(--text); }
.pub-list .t a:hover { color: var(--gold-2); }
.pub-list .d { color: var(--muted); font-size: 15.5px; display: block; margin-top: 4px; }
.cv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; margin: 0 0 1.4em; }
.cv-grid .box { padding: 22px; border-radius: 16px; background: var(--panel); border: 1px solid var(--line); font-size: 15.5px; color: var(--muted); }
.cv-grid .box b { display: block; color: var(--gold-2); font-weight: 600; margin-bottom: 6px; font-size: 13px; letter-spacing: 1.5px; text-transform: uppercase; }
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; }

/* footer */
footer { border-top: 1px solid var(--line); padding: 80px 0 40px; position: relative; overflow: hidden; }
.foot-big { font-family: var(--display); font-size: clamp(60px, 13vw, 210px); line-height: .9; letter-spacing: -0.03em; margin: 0 0 60px; color: transparent;
  -webkit-text-stroke: 1px rgba(200, 212, 240, 0.22); white-space: nowrap; }
.foot-big em { font-style: normal; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-stroke: 0; }
.foot { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; }
.foot h6 { font-size: 12.5px; letter-spacing: 2.5px; text-transform: uppercase; color: var(--gold); margin: 0 0 16px; font-weight: 600; }
.foot a { display: block; color: var(--muted); font-size: 15px; padding: 5px 0; transition: color .2s; }
.foot a:hover { color: var(--text); }
.foot p { color: var(--muted); font-size: 15px; max-width: 36ch; }
.legal { margin-top: 50px; padding-top: 26px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; color: var(--faint); font-size: 14px; }

/* page transitions */
@view-transition { navigation: auto; }
::view-transition-old(root) { animation: vt-out .35s ease both; }
::view-transition-new(root) { animation: vt-in .55s var(--ease) both; }
@keyframes vt-out { to { opacity: 0; transform: scale(.985); } }
@keyframes vt-in { from { opacity: 0; transform: translateY(16px); } }

/* responsive */
@media (max-width: 1020px) {
  .about, .book, .article, .split, .demo { grid-template-columns: 1fr; }
  .aside { position: static; }
  .foot { grid-template-columns: 1fr 1fr; }
  .about-media .badge { right: 12px; }
}
@media (max-width: 860px) {
  .burger { display: block; }
  .menu { position: fixed; inset: 78px 0 auto 0; flex-direction: column; align-items: stretch; gap: 4px; padding: 18px 16px 26px; background: rgba(4, 7, 13, 0.97);
    backdrop-filter: blur(18px); border-bottom: 1px solid var(--line); transform: translateY(-12px); opacity: 0; pointer-events: none; transition: opacity .3s, transform .3s; }
  .nav.open .menu { opacity: 1; transform: none; pointer-events: auto; }
  .nav.open { background: rgba(4, 7, 13, 0.97); }
  .menu a { padding: 13px 16px; font-size: 17px; }
  .menu .cta-sm { text-align: center; margin: 8px 0 0; }
  /* research: stacked instead of pinned */
  .hscroll { height: auto !important; }
  .hs-sticky { position: static; height: auto; padding: 90px 0; }
  .hs-track { flex-direction: column; padding: 0 16px; transform: none !important; }
  .panel { flex: none; width: 100%; height: 440px; }
  .hs-progress { display: none; }
  .hero-meta { display: none; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .stats { grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
  .stat { padding: 16px 12px; }
  .foot { grid-template-columns: 1fr; }
  .person { padding: 28px; }
  .prose { font-size: 17px; }
  .field { grid-template-columns: 96px 1fr; }
  .btn { padding: 15px 22px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal, .word > span, .fade-up { opacity: 1 !important; transform: none !important; }
  .img-reveal { clip-path: none !important; }
  .img-reveal img { transform: none !important; }
  .preloader { display: none; }
}

/* ───── contact form ───── */
.contact-layout { display: grid; grid-template-columns: 1.4fr .9fr; gap: 28px; align-items: start; }
.contact-side { display: grid; gap: 18px; }
.cform { position: relative; padding: clamp(28px, 4vw, 52px); border-radius: 28px; background: var(--panel); border: 1px solid var(--line); backdrop-filter: blur(16px); overflow: hidden; }
.frow { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.fl { position: relative; display: block; margin-bottom: 16px; }
.fl input, .fl textarea { width: 100%; padding: 26px 18px 10px; border-radius: 14px; border: 1px solid var(--line-strong); background: rgba(4, 7, 13, 0.55);
  color: var(--text); font: inherit; font-size: 16px; outline: none; transition: border-color .25s, box-shadow .25s, background .25s; resize: vertical; }
.fl textarea { min-height: 170px; }
.fl span { position: absolute; left: 19px; top: 18px; color: var(--faint); font-size: 16px; pointer-events: none; transition: all .22s var(--ease); }
.fl input:focus, .fl textarea:focus { border-color: var(--gold); box-shadow: 0 0 0 4px rgba(227, 185, 95, 0.12); background: rgba(4, 7, 13, 0.75); }
.fl input:focus + span, .fl input:not(:placeholder-shown) + span, .fl textarea:focus + span, .fl textarea:not(:placeholder-shown) + span {
  top: 8px; font-size: 11.5px; letter-spacing: 1.4px; text-transform: uppercase; color: var(--gold-2); }
.fl.bad input, .fl.bad textarea { border-color: #ff6b6b; box-shadow: 0 0 0 4px rgba(255, 107, 107, 0.12); animation: shake .4s; }
@keyframes shake { 25% { transform: translateX(-5px); } 75% { transform: translateX(5px); } }
.topics { display: flex; flex-wrap: wrap; gap: 10px; margin: 4px 0 18px; }
.topics label { cursor: pointer; }
.topics input { position: absolute; opacity: 0; pointer-events: none; }
.topics span { display: inline-block; padding: 10px 16px; border-radius: 999px; border: 1px solid var(--line-strong); color: var(--muted); font-size: 14.5px; transition: all .25s var(--ease); }
.topics input:checked + span { color: #0b0f19; background: var(--grad); border-color: transparent; box-shadow: 0 8px 24px -10px rgba(227, 185, 95, 0.7); }
.topics input:focus-visible + span { outline: 2px solid var(--gold); outline-offset: 2px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.fsend { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; margin-top: 8px; }
.fnote { margin: 0; color: var(--faint); font-size: 14px; }
.cform.sending .btn { pointer-events: none; opacity: .85; }
.cform.sending .btn .lbl::after { content: "…"; }
.fstatus { margin-top: 16px; font-size: 15px; min-height: 1.4em; color: #ff8a8a; }
.fdone { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; padding: 30px; background: rgba(8, 13, 26, 0.97);
  opacity: 0; pointer-events: none; transition: opacity .6s var(--ease); }
.cform.sent .fdone { opacity: 1; pointer-events: auto; }
.fdone h3 { font-size: 40px; margin: 18px 0 8px; }
.fdone p { color: var(--muted); margin: 0; }
.tick { width: 96px; height: 96px; margin: 0 auto; }
.tick svg { width: 100%; height: 100%; fill: none; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.tick circle { stroke: var(--teal); stroke-dasharray: 151; stroke-dashoffset: 151; }
.tick path { stroke: var(--gold-2); stroke-dasharray: 40; stroke-dashoffset: 40; }
.cform.sent .tick circle { animation: draw .9s .15s var(--ease) forwards; }
.cform.sent .tick path { animation: draw .5s .85s var(--ease) forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@media (max-width: 1020px) { .contact-layout { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .frow { grid-template-columns: 1fr; gap: 0; } }

/* ───── polish pass ───── */
html { overflow-x: clip; }
.hscroll + .section { padding-top: clamp(40px, 6vw, 80px); }
.hs-sticky { justify-content: flex-start; padding-top: max(110px, 12vh); }
.page-hero { padding-bottom: clamp(40px, 5vw, 64px); height: clamp(480px, 70vh, 700px); }
.article { padding-top: 40px; }