/* tyleryoung.org v2 — cinematic dark.
   Ink + ember, carried over from the résumé. Instrument Serif for display,
   Inter for text, JetBrains Mono for anything technical. */

:root {
  --bg: #0a0908;
  --bg-2: #110f0d;
  --ink: #f4eee6;
  --ink-2: #d9d1c5;
  --mute: #a39a8e;
  --mute-2: #8f877c;
  --line: rgba(244, 238, 230, 0.09);
  --line-2: rgba(244, 238, 230, 0.17);
  --ember: #ff7a45;
  --ember-2: #f29b72;
  --amber: #f2c063;
  --ok: #7ee0a8;
  --cool: #8ab4ff;
  --violet: #c4a3ff;
  --hl: rgba(255, 122, 69, 0.22);
  --serif: 'Instrument Serif', 'Iowan Old Style', Georgia, serif;
  --sans: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', 'PingFang SC', 'Hiragino Sans', 'Noto Sans', 'Noto Sans Devanagari', 'Noto Sans Arabic', 'Geeza Pro', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --wrap: 1320px;
  --gut: clamp(20px, 4.2vw, 64px);
  --r: 20px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-stopped { overflow: hidden; }
body {
  margin: 0; background: var(--bg); color: var(--ink-2);
  font: 400 17px/1.6 var(--sans); font-feature-settings: 'cv11', 'ss01', 'ss03';
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; overflow-x: clip;
}
img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; }
p { margin: 0; }
h1, h2, h3, h4 { margin: 0; color: var(--ink); font-weight: 400; }
ol, ul { margin: 0; padding: 0; list-style: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; }
em { font-family: var(--serif); font-style: italic; font-weight: 400; color: var(--ember-2); }
::selection { background: var(--ember); color: #120d0a; }
:focus-visible { outline: 2px solid var(--ember); outline-offset: 3px; border-radius: 6px; }
.mono { font-family: var(--mono); font-feature-settings: normal; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: fixed; left: 12px; top: -60px; z-index: 200; background: var(--ink); color: var(--bg); padding: 10px 14px; border-radius: 8px; text-decoration: none; }
.skip:focus { top: 12px; }
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gut); }

/* ----------------------------------------------------------- atmosphere */
#field { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.vignette { position: fixed; inset: 0; z-index: 1; pointer-events: none; background: radial-gradient(120% 90% at 50% 40%, transparent 55%, rgba(0, 0, 0, 0.55) 100%); }
.grain {
  position: fixed; inset: -50%; z-index: 90; pointer-events: none; opacity: 0.06;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 1.2s steps(6) infinite;
}
@keyframes grain { 0% { transform: translate(0, 0); } 20% { transform: translate(-3%, 2%); } 40% { transform: translate(2%, -3%); } 60% { transform: translate(-2%, -1%); } 80% { transform: translate(3%, 3%); } 100% { transform: translate(0, 0); } }
main, footer { position: relative; z-index: 2; }

/* -------------------------------------------------------------- loader */
#loader { position: fixed; inset: 0; z-index: 150; display: grid; place-items: center; background: var(--bg); transition: clip-path 1.1s var(--ease); clip-path: inset(0 0 0 0); }
#loader.done { clip-path: inset(0 0 100% 0); }
#loader { transition: clip-path 1.1s var(--ease), background-color 0.7s ease; }
#loader.to-gl { background-color: transparent; pointer-events: none; }
#loader.to-gl .loader-name, #loader.to-gl .loader-bar, #loader.to-gl .loader-meta { opacity: 0; transition: opacity 0.45s ease; }
.seen #loader, .rm #loader, html:not(.js) #loader { display: none; }
/* With WebGL the particles draw the name; the loader only shows progress, so the name never appears twice. */
.webgl:not(.rm) .loader-name { display: none; }
.intro :is(#nav, .rail, .scroll-cue, #cursor) { opacity: 0 !important; pointer-events: none; }
.intro .hero-bottom { border-top-color: transparent; }
.hero-bottom, .rail { transition: border-color 0.9s ease, opacity 0.9s ease; }
.loader-in { width: min(720px, 86vw); }
.loader-name { font: 400 clamp(48px, 9vw, 120px)/0.95 var(--serif); color: var(--ink); letter-spacing: -0.02em; }
.loader-name span, .loader-name em { display: inline-block; opacity: 0; transform: translateY(30%); animation: rise 1s var(--ease) forwards; }
.loader-name span:nth-child(2) { animation-delay: 0.08s; }
.loader-name em { animation-delay: 0.16s; }
@keyframes rise { to { opacity: 1; transform: none; } }
.loader-bar { height: 1px; margin: 28px 0 14px; background: var(--line-2); overflow: hidden; }
.loader-bar i { display: block; height: 100%; width: 100%; background: var(--ember); transform-origin: 0 50%; transform: scaleX(var(--p, 0)); }
.loader-meta { display: flex; justify-content: space-between; font-size: 12px; color: var(--mute); letter-spacing: 0.06em; text-transform: uppercase; }

/* -------------------------------------------------------------- cursor */
#cursor { position: fixed; left: 0; top: 0; z-index: 140; pointer-events: none; display: none; }
.has-cursor #cursor { display: block; }
.c-dot, .c-ring { position: fixed; left: 0; top: 0; border-radius: 50%; transform: translate3d(-100px, -100px, 0); }
.c-dot { display: none; }
.c-ring { width: 38px; height: 38px; margin: -19px 0 0 -19px; border: 1px solid rgba(255, 122, 69, 0.5); transition: width 0.35s var(--ease), height 0.35s var(--ease), margin 0.35s var(--ease), background 0.3s, border-color 0.3s; }
#cursor.hover .c-ring { width: 64px; height: 64px; margin: -32px 0 0 -32px; background: rgba(255, 122, 69, 0.1); border-color: rgba(255, 122, 69, 0.8); }
#cursor.text .c-ring { width: 4px; height: 26px; margin: -13px 0 0 -2px; border-radius: 2px; background: var(--ember); border-color: transparent; }

/* ----------------------------------------------------------------- nav */
#nav { position: fixed; inset: 0 0 auto; z-index: 100; transition: background 0.4s, backdrop-filter 0.4s, opacity 0.9s ease; }
#nav.scrolled { background: rgba(10, 9, 8, 0.55); backdrop-filter: blur(16px) saturate(1.3); -webkit-backdrop-filter: blur(16px) saturate(1.3); }
.nav-in { display: flex; align-items: center; gap: 20px; height: 68px; padding: 0 var(--gut); }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; white-space: nowrap; }
.brand svg { width: 30px; height: 30px; border-radius: 8px; }
.brand b { font: 400 22px var(--serif); letter-spacing: -0.01em; }
.nav-links { display: flex; gap: 2px; margin-left: auto; }
.nav-links a { padding: 8px 12px; border-radius: 999px; font-size: 13.5px; color: var(--mute); text-decoration: none; transition: color 0.2s, background 0.2s; }
.nav-links a:hover, .nav-links a.active { color: var(--ink); background: rgba(244, 238, 230, 0.06); }
.nav-tools { display: flex; align-items: center; gap: 8px; }
.pill-btn { display: inline-flex; align-items: center; gap: 7px; height: 36px; padding: 0 12px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--ink-2); font: 500 12px var(--mono); transition: border-color 0.2s, background 0.2s; }
.pill-btn:hover { border-color: rgba(244, 238, 230, 0.35); background: rgba(244, 238, 230, 0.04); }
.pill-btn svg { width: 15px; height: 15px; }
.kbd-hint { color: var(--mute); }
.cta-pill { display: inline-flex; align-items: center; height: 36px; padding: 0 16px; border-radius: 999px; background: var(--ink); color: var(--bg); font-size: 13px; font-weight: 600; text-decoration: none; }
.nav-progress { height: 1px; background: transparent; }
.nav-progress i { display: block; height: 1px; background: linear-gradient(90deg, var(--ember), var(--amber)); transform-origin: 0 50%; transform: scaleX(0); }
#langWrap { position: relative; }
#langMenu { position: absolute; right: 0; top: calc(100% + 10px); z-index: 120; min-width: 196px; padding: 6px; border-radius: 14px; background: rgba(20, 18, 16, 0.92); border: 1px solid var(--line-2); backdrop-filter: blur(16px); box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.8); }
#langMenu button { display: flex; justify-content: space-between; width: 100%; padding: 9px 10px; border-radius: 8px; font-size: 14px; text-align: start; color: var(--ink-2); }
#langMenu button span { font: 11px var(--mono); color: var(--mute); }
#langMenu button:hover, #langMenu button:focus-visible { background: rgba(244, 238, 230, 0.07); outline: none; }
#langMenu button[aria-current='true'] { color: var(--ember); }
@media (max-width: 1080px) { .nav-links { display: none; } .nav-tools { margin-left: auto; } }
@media (max-width: 560px) { .cta-pill { display: none; } .kbd-hint { display: none; } .brand b { font-size: 19px; } }

/* chapter rail */
.rail { position: fixed; right: 22px; top: 50%; z-index: 90; transform: translateY(-50%); display: flex; flex-direction: column; gap: 4px; }
.rail a { display: flex; align-items: center; justify-content: flex-end; gap: 10px; height: 22px; text-decoration: none; color: var(--mute-2); font: 500 10.5px var(--mono); letter-spacing: 0.06em; }
.rail a b { font-weight: 500; opacity: 0.7; transition: color 0.3s, opacity 0.3s; }
.rail a span { opacity: 0; transform: translateX(6px); transition: opacity 0.3s, transform 0.3s var(--ease); text-transform: uppercase; color: var(--ink-2); }
.rail a::after { content: ''; width: 14px; height: 1px; background: currentColor; transition: width 0.4s var(--ease), background 0.3s; }
.rail a:hover span, .rail a.active span { opacity: 1; transform: none; }
.rail a.active { color: var(--ember); }
.rail a.active b { opacity: 1; }
.rail a.active::after { width: 30px; background: var(--ember); }
@media (max-width: 1659px) { .rail { display: none; } }
.rail.fade { opacity: 0; pointer-events: none; }
.rail { transition: opacity 0.4s; }

/* ---------------------------------------------------------- typography */
.label { display: flex; align-items: center; gap: 12px; margin-bottom: 22px; font: 500 12px/1 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ember); }
.label::after { content: ''; width: 56px; height: 1px; background: currentColor; opacity: 0.45; }
.big-h { font: 400 clamp(44px, 6.4vw, 108px)/0.96 var(--serif); letter-spacing: -0.025em; color: var(--ink); text-wrap: balance; }
.sec-lede { font-size: clamp(16.5px, 1.35vw, 19px); line-height: 1.65; color: var(--ink-2); max-width: 54ch; text-wrap: pretty; }
.sec-lede.dim { color: var(--mute); margin-top: 16px; }
.line-mask { overflow: hidden; padding-bottom: 0.08em; margin-bottom: -0.08em; }

/* ----------------------------------------------------------------- hero */
.hero { position: relative; min-height: 100svh; display: flex; flex-direction: column; justify-content: flex-end; padding: 120px 0 clamp(96px, 13vh, 150px); }
.hero-in { position: relative; }
/* Portrait phones with WebGL: leave the top of the hero for the particle hub. */
@media (max-width: 900px) and (max-aspect-ratio: 5/6) { .webgl:not(.rm) .hero { padding-top: max(120px, 34svh); } }
.status { display: inline-flex; align-items: center; gap: 10px; padding: 7px 14px 7px 11px; margin-bottom: clamp(20px, 3.5vh, 36px); border-radius: 999px; border: 1px solid var(--line-2); background: rgba(10, 9, 8, 0.45); backdrop-filter: blur(8px); font: 500 12px/1.2 var(--mono); color: var(--ink-2); }
.pulse { position: relative; width: 8px; height: 8px; border-radius: 50%; background: var(--ok); }
.pulse::after { content: ''; position: absolute; inset: -5px; border-radius: 50%; border: 2px solid var(--ok); opacity: 0; animation: ping 2.4s var(--ease) infinite; }
@keyframes ping { 0% { transform: scale(0.5); opacity: 0.7; } 100% { transform: scale(1.9); opacity: 0; } }
.hero-title { font: 400 clamp(56px, 8.6vw, 156px)/0.9 var(--serif); letter-spacing: -0.035em; color: var(--ink); max-width: 11.5ch; text-wrap: balance; }
.hero-title em { color: var(--ember); }
.hero-bottom { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 32px clamp(32px, 6vw, 110px); align-items: end; margin-top: clamp(28px, 5vh, 56px); padding-top: clamp(22px, 3vh, 32px); border-top: 1px solid var(--line); }
@media (max-width: 900px) { .hero-bottom { grid-template-columns: 1fr; } }
.lede { font-size: clamp(16.5px, 1.3vw, 19px); line-height: 1.65; color: var(--ink-2); max-width: 56ch; text-wrap: pretty; }
.roles { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.roles span { padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line-2); font-size: 13px; color: var(--ink-2); white-space: nowrap; background: rgba(10, 9, 8, 0.4); }
.roles span:first-child { border-color: rgba(255, 122, 69, 0.5); color: var(--ink); }
.cta-row { display: flex; flex-wrap: wrap; gap: 10px; }
.btn { display: inline-flex; align-items: center; gap: 10px; height: 52px; padding: 0 24px; border-radius: 999px; font-size: 15px; font-weight: 500; text-decoration: none; border: 1px solid transparent; transition: background 0.3s, border-color 0.3s, color 0.3s; will-change: transform; }
.btn svg { width: 17px; height: 17px; }
.btn-primary { background: var(--ember); color: #160c07; }
.btn-primary:hover { background: #ff8f61; }
.btn-ghost { border-color: var(--line-2); color: var(--ink); background: rgba(10, 9, 8, 0.35); backdrop-filter: blur(6px); }
.btn-ghost:hover { border-color: rgba(244, 238, 230, 0.5); }
.scroll-cue { position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 10px; font: 500 10.5px var(--mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--mute); text-decoration: none; }
.scroll-cue i { width: 1px; height: 42px; background: linear-gradient(var(--ember), transparent); transform-origin: top; animation: cue 2.2s var(--ease) infinite; }
@keyframes cue { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }
@media (max-height: 760px) { .scroll-cue { display: none; } }
.js:not(.rm) .hero-anim { opacity: 0; transform: translateY(24px); animation: failsafe 0.6s 4.5s forwards; }
.js:not(.rm) .hero-title { opacity: 0; animation: failsafe 0.6s 4.5s forwards; }
@keyframes failsafe { to { opacity: 1; transform: none; } }

/* -------------------------------------------------------------- marquee */
.marquee { position: relative; overflow: hidden; padding: clamp(28px, 5vw, 64px) 0; border-block: 1px solid var(--line); background: rgba(10, 9, 8, 0.35); }
.marquee-track { display: flex; width: max-content; will-change: transform; }
.marquee span { padding: 0 0.45em; font: 400 clamp(54px, 8.5vw, 140px)/1 var(--serif); letter-spacing: -0.02em; white-space: nowrap; color: transparent; -webkit-text-stroke: 1px rgba(244, 238, 230, 0.32); }
.marquee span:nth-child(3n + 2) { color: var(--ember); -webkit-text-stroke: 0; font-style: italic; }
.marquee span::after { content: '✦'; margin-left: 0.9em; font-size: 0.32em; vertical-align: middle; color: var(--ember); -webkit-text-stroke: 0; font-style: normal; }

/* --------------------------------------------------------------- thesis */
.thesis { position: relative; height: 210vh; }
.sticky { position: sticky; top: 0; height: 100vh; height: 100svh; display: flex; align-items: center; overflow: hidden; }
.thesis-text { font: 400 clamp(34px, 4.8vw, 82px)/1.08 var(--serif); letter-spacing: -0.02em; color: var(--ink); max-width: 21ch; text-wrap: balance; }
.thesis-text .word { opacity: 0.13; transition: opacity 0.25s linear; }
.thesis-text .word.lit { opacity: 1; }
.thesis-text .word.key { color: var(--ember); font-style: italic; }

/* ---------------------------------------------------------------- proof */
.proof { position: relative; height: 440vh; }
.proof-in { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); }
.proof-copy { position: relative; max-width: 520px; }
.proof-h { font: 400 clamp(38px, 4.2vw, 70px)/1 var(--serif); letter-spacing: -0.02em; margin-bottom: clamp(26px, 5vh, 52px); }
.steps { display: grid; }
.step { grid-area: 1 / 1; opacity: 0; transform: translateY(26px); transition: opacity 0.6s var(--ease), transform 0.8s var(--ease); pointer-events: none; }
.step.is-active { opacity: 1; transform: none; pointer-events: auto; }
.step-k { font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--amber); margin-bottom: 14px; }
.proof-num { font: 400 clamp(96px, 13vw, 200px)/0.9 var(--serif); letter-spacing: -0.04em; color: var(--ink); margin-bottom: 10px; }
.gl .proof-num { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.step-c { font-size: clamp(19px, 1.7vw, 25px); line-height: 1.4; color: var(--ink); max-width: 26ch; text-wrap: pretty; }
.step-note { margin-top: 14px; font-size: 12px; color: var(--mute); letter-spacing: 0.02em; max-width: 44ch; }
.step-count { margin-top: clamp(26px, 5vh, 48px); font-size: 12px; color: var(--mute); }
.step-count b { color: var(--ember); font-weight: 500; }
.viz { margin-top: 22px; }
.viz-cells { display: grid; grid-template-columns: repeat(17, 1fr); gap: 4px; max-width: 360px; }
.viz-cells i { aspect-ratio: 1; border-radius: 3px; background: rgba(244, 238, 230, 0.08); transition: background 0.4s, box-shadow 0.4s; }
.viz-cells i.on { background: var(--ember); box-shadow: 0 0 10px rgba(255, 122, 69, 0.45); }
.viz-dots { display: grid; grid-template-columns: repeat(20, 1fr); gap: 6px; max-width: 360px; }
.viz-dots i { aspect-ratio: 1; border-radius: 50%; background: rgba(244, 238, 230, 0.1); transform: scale(0.4); transition: transform 0.4s var(--ease), background 0.4s; }
.viz-dots i.on { background: var(--amber); transform: scale(1); }
.viz-call { display: flex; gap: 3px; max-width: 420px; height: 16px; }
.viz-call .seg { width: var(--w); border-radius: 4px; transform-origin: 0 50%; transform: scaleX(0); transition: transform 0.8s var(--ease); }
.step.is-active .viz-call .seg { transform: scaleX(1); }
.step.is-active .viz-call .seg:nth-child(2) { transition-delay: 0.15s; } .step.is-active .viz-call .seg:nth-child(3) { transition-delay: 0.3s; } .step.is-active .viz-call .seg:nth-child(4) { transition-delay: 0.6s; } .step.is-active .viz-call .seg:nth-child(5) { transition-delay: 0.75s; }
.seg-dial { background: var(--cool); } .seg-ivr { background: var(--amber); } .seg-hold { background: repeating-linear-gradient(-45deg, rgba(244,238,230,.25) 0 4px, rgba(244,238,230,.08) 4px 8px); } .seg-human { background: var(--ember); } .seg-ok { background: var(--ok); }
.viz-years { display: flex; gap: 3px; max-width: 440px; }
.viz-years i { width: var(--w); padding-top: 22px; position: relative; font: 500 9.5px var(--mono); font-style: normal; color: var(--mute); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.viz-years i::before { content: ''; position: absolute; left: 0; right: 0; top: 0; height: 14px; border-radius: 4px; background: rgba(244, 238, 230, 0.16); }
.viz-years i.ai::before { background: var(--ember); }
@media (max-width: 900px) {
  .proof { height: 400vh; }
  .proof-in { grid-template-columns: 1fr; }
  .proof .sticky { align-items: flex-end; padding-bottom: 7vh; }
  .proof-h { display: none; }
  .proof-copy { padding: 18px; margin: 0 -18px; border-radius: 18px; background: linear-gradient(to top, rgba(10,9,8,.9), rgba(10,9,8,.55)); }
}

/* -------------------------------------------------------------- systems */
.systems { position: relative; }
.systems .sticky { align-items: center; }
.track { display: flex; align-items: center; gap: clamp(18px, 2vw, 32px); padding: 0 var(--gut); will-change: transform; }
.panel { flex: 0 0 auto; }
.panel-intro { width: min(560px, 82vw); padding-right: 3vw; }
.panel-lede { margin-top: 26px; font-size: 18px; line-height: 1.65; color: var(--ink-2); max-width: 44ch; }
.drag-hint { display: flex; align-items: center; gap: 10px; margin-top: 34px; font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--mute); }
.drag-hint i { font-style: normal; color: var(--ember); animation: nudge 1.6s var(--ease) infinite; }
@keyframes nudge { 50% { transform: translateX(8px); } }
.glass, .sys {
  background: linear-gradient(180deg, rgba(30, 26, 23, 0.94), rgba(17, 15, 13, 0.94));
  border: 1px solid var(--line); border-radius: var(--r);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05), 0 40px 100px -40px rgba(0, 0, 0, 0.8);
}
.sys { position: relative; width: min(600px, 86vw); height: min(720px, 86vh); display: flex; flex-direction: column; padding: 26px 28px 24px; overflow: hidden; transition: opacity 0.4s, transform 0.5s var(--ease); }
.sys::before { content: ''; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(500px circle at var(--mx, 80%) var(--my, 0%), rgba(255, 122, 69, 0.09), transparent 55%); }
.sys-top { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.sys-n { font-size: 12px; color: var(--ember); }
.sys-org { font-size: 11.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute); }
.badge { margin-left: auto; display: inline-flex; align-items: center; gap: 7px; padding: 4px 10px; border-radius: 999px; border: 1px solid var(--line-2); font: 500 11px var(--mono); color: var(--mute); white-space: nowrap; }
.badge.live { color: var(--ok); border-color: rgba(126, 224, 168, 0.35); background: rgba(126, 224, 168, 0.06); }
.badge.live::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; box-shadow: 0 0 8px currentColor; }
.sys h3 { font: 400 clamp(28px, 2.4vw, 38px)/1.05 var(--serif); letter-spacing: -0.01em; }
.diagram { margin: 18px -6px 16px; padding: 10px; border-radius: 14px; background: rgba(5, 4, 4, 0.45); border: 1px solid var(--line); }
.sys > p { font-size: 15px; line-height: 1.6; color: var(--ink-2); }
.pts { margin-top: 12px; display: grid; gap: 6px; }
.pts li { position: relative; padding-left: 18px; font-size: 14px; line-height: 1.5; color: var(--ink-2); }
.pts li::before { content: ''; position: absolute; left: 2px; top: 0.62em; width: 7px; height: 2px; border-radius: 1px; background: var(--ember); }
.pts strong { color: var(--ink); font-weight: 600; }
.stack { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 16px; }
.chip { display: inline-flex; padding: 4px 9px; border-radius: 7px; font: 500 11.5px/1.3 var(--mono); color: var(--ink-2); background: rgba(244, 238, 230, 0.05); border: 1px solid var(--line); }
.sys-progress { position: absolute; left: var(--gut); right: var(--gut); bottom: 5vh; height: 1px; background: var(--line); }
.sys-progress i { display: block; height: 100%; background: var(--ember); transform-origin: 0 50%; transform: scaleX(0); }
@media (max-width: 900px) {
  .systems { height: auto !important; }
  .systems .sticky { position: static; height: auto; display: block; overflow: visible; }
  .track { flex-direction: column; align-items: stretch; transform: none !important; padding-block: 100px 40px; }
  .panel-intro, .sys { width: 100%; max-height: none; }
  .sys-progress { display: none; }
}
@media (max-height: 820px) and (min-width: 901px) { .sys .pts { display: none; } }

/* diagrams (SVG) */
.dg { width: 100%; height: auto; overflow: visible; }
.dg text { font: 500 12px var(--mono); fill: var(--ink-2); text-anchor: middle; }
.dg .lbl { font-size: 10.5px; fill: var(--mute); text-anchor: start; letter-spacing: 0.04em; }
.dg .lbl.right, .dg .st.right { text-anchor: end; }
.dg .st { font-size: 12px; fill: var(--amber); }
.dg .st.big { font: 400 30px var(--serif); fill: var(--ink); text-anchor: start; }
.dg .st.big.right { text-anchor: end; fill: var(--ember-2); font-family: var(--mono); font-size: 24px; }
.dg .edges path, .dg .lane { fill: none; stroke: rgba(244, 238, 230, 0.16); stroke-width: 1.3; }
.dg .edges path.on, .dg .lane.on { stroke: var(--ember); stroke-width: 1.6; filter: drop-shadow(0 0 4px rgba(255, 122, 69, 0.6)); }
.dg .nd rect { fill: rgba(20, 18, 16, 0.9); stroke: rgba(244, 238, 230, 0.2); transition: stroke 0.3s, fill 0.3s; }
.dg .nd text { fill: var(--ink-2); }
.dg .nd .sub { font-size: 10px; fill: var(--mute); }
.dg .nd.hot rect { stroke: rgba(255, 122, 69, 0.7); fill: rgba(255, 122, 69, 0.08); }
.dg .nd.hot text { fill: var(--ember-2); }
.dg .nd.on rect { stroke: var(--ok); fill: rgba(126, 224, 168, 0.1); }
.dg .nd.on text { fill: var(--ok); }
.dg .pk { fill: var(--ember); filter: drop-shadow(0 0 6px var(--ember)); }
.dg-call .track, .dg-mine .track { fill: rgba(244, 238, 230, 0.08); }
.dg-call .fill { opacity: 0.95; }
.dg-call .f-dial { fill: var(--cool); } .dg-call .f-ivr { fill: var(--amber); } .dg-call .f-hold { fill: rgba(244, 238, 230, 0.28); } .dg-call .f-human { fill: var(--ember); } .dg-call .f-ok { fill: var(--ok); }
.dg-call #sb-head { stroke: var(--ink); stroke-width: 1.5; }
.dg-call .lbls text { font-size: 10.5px; fill: var(--mute); text-anchor: start; }
.dg-call #sb-bars rect { fill: var(--ember); opacity: 0.85; }
.dg-mine .screen { fill: rgba(244, 238, 230, 0.04); stroke: rgba(244, 238, 230, 0.16); }
.dg-mine .ui { fill: rgba(244, 238, 230, 0.12); }
.dg-mine .ui.btn { fill: rgba(138, 180, 255, 0.35); }
.dg-mine .phi { fill: #000; stroke: rgba(242, 192, 99, 0.6); }
.dg-mine .scan { fill: var(--ember); filter: drop-shadow(0 0 6px var(--ember)); }
.dg-mine .tasks circle { fill: none; stroke: rgba(244, 238, 230, 0.25); transition: fill 0.3s, stroke 0.3s; }
.dg-mine .tasks .tick { fill: none; stroke: #0b0908; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; opacity: 0; }
.dg-mine .tasks g { opacity: 0.25; transition: opacity 0.4s; }
.dg-mine .tasks g.on { opacity: 1; }
.dg-mine .tasks g.on circle { fill: var(--ok); stroke: var(--ok); }
.dg-mine .tasks g.on .tick { opacity: 1; }
.dg-mine .tasks text { text-anchor: start; font-size: 12px; }
.dg-mine .cov { fill: var(--ok); }
.dg-fhir .msg rect { fill: rgba(255, 122, 69, 0.14); stroke: var(--ember); }
.dg-fhir .msg text { font-size: 10.5px; fill: var(--ember-2); }
.dg-fhir .msg.back rect { fill: rgba(126, 224, 168, 0.12); stroke: var(--ok); }
.dg-fhir .msg.back text { fill: var(--ok); }
.dg-fhir .msg { opacity: 0; }
.dg-chat { display: grid; gap: 10px; padding: 6px; min-height: 236px; font-size: 13.5px; }
.dg-chat .bubble { max-width: 88%; padding: 10px 14px; border-radius: 14px; line-height: 1.45; }
.dg-chat .q { justify-self: end; background: rgba(244, 238, 230, 0.1); color: var(--ink); border-bottom-right-radius: 4px; }
.dg-chat .a { background: rgba(255, 122, 69, 0.1); border: 1px solid rgba(255, 122, 69, 0.3); color: var(--ink); border-bottom-left-radius: 4px; min-height: 66px; }
.dg-chat .tools, .dg-chat .cites { display: flex; flex-wrap: wrap; gap: 6px; }
.dg-chat .tools span { padding: 3px 8px; border-radius: 6px; font: 500 10.5px var(--mono); color: var(--cool); border: 1px solid rgba(138, 180, 255, 0.35); background: rgba(138, 180, 255, 0.07); opacity: 0.2; transition: opacity 0.3s; }
.dg-chat .tools span.on { opacity: 1; }
.dg-chat .cites span { font: 500 10.5px var(--mono); color: var(--mute); opacity: 0; transition: opacity 0.4s; }
.dg-chat .cites span.on { opacity: 1; }
.dg-chat .caret { display: inline-block; width: 7px; height: 14px; margin-left: 2px; vertical-align: -2px; background: var(--ember); animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ------------------------------------------------------------- sections */
.section { position: relative; padding: clamp(110px, 16vh, 200px) 0 0; }
.sec-head { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: 28px 64px; align-items: end; margin-bottom: clamp(36px, 6vh, 64px); }
@media (max-width: 900px) { .sec-head { grid-template-columns: 1fr; } }

/* -------------------------------------------------------------- tracer */
.tracer { padding: 18px; }
.tracer-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 2px 2px 16px; border-bottom: 1px solid var(--line); }
.tabs { display: flex; flex-wrap: wrap; gap: 6px; }
.tabs button { padding: 8px 14px; border-radius: 999px; font-size: 13.5px; color: var(--mute); border: 1px solid transparent; transition: all 0.25s; }
.tabs button:hover { color: var(--ink); }
.tabs button[aria-selected='true'] { color: var(--ink); border-color: var(--line-2); background: rgba(244, 238, 230, 0.06); }
.replay { display: inline-flex; gap: 8px; align-items: center; padding: 8px 12px; border-radius: 999px; font-size: 12px; color: var(--ember-2); border: 1px solid rgba(255, 122, 69, 0.35); }
.tracer-body { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 18px; padding-top: 16px; }
@media (max-width: 980px) { .tracer-body { grid-template-columns: 1fr; } }
.waterfall { position: relative; display: grid; gap: 4px; align-content: start; min-height: 380px; font-family: var(--mono); }
.wf-axis { position: relative; height: 18px; margin-left: var(--nameW, 230px); border-bottom: 1px solid var(--line); font-size: 10.5px; color: var(--mute-2); }
.wf-axis span { position: absolute; top: 0; transform: translateX(-50%); white-space: nowrap; }
.wf-row { display: grid; grid-template-columns: var(--nameW, 230px) minmax(0, 1fr); align-items: center; height: 24px; border-radius: 7px; cursor: pointer; transition: background 0.2s; }
.wf-row:hover, .wf-row.sel { background: rgba(244, 238, 230, 0.05); }
.wf-name { display: flex; align-items: center; gap: 8px; padding-left: calc(8px + var(--d, 0) * 16px); font-size: 12px; color: var(--ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.wf-name i { flex: none; width: 8px; height: 8px; border-radius: 2px; }
.wf-lane { position: relative; height: 100%; margin-right: 56px; }
.wf-bar { position: absolute; top: 6px; height: 12px; min-width: 3px; border-radius: 4px; transform-origin: 0 50%; transform: scaleX(0); }
.wf-row.in .wf-bar { transform: scaleX(1); transition: transform var(--t, 0.5s) cubic-bezier(0.3, 0.7, 0.3, 1); }
.wf-dur { position: absolute; top: 4px; font-size: 10.5px; color: var(--mute); white-space: nowrap; opacity: 0; transition: opacity 0.3s 0.3s; }
.wf-row.in .wf-dur { opacity: 1; }
.k-llm, .wf-bar.llm, .wf-name i.llm { background: var(--ember); }
.k-tool, .wf-bar.tool, .wf-name i.tool { background: var(--cool); }
.k-guard, .wf-bar.guard, .wf-name i.guard { background: var(--amber); }
.k-io, .wf-bar.io, .wf-name i.io { background: var(--violet); }
.k-idle, .wf-bar.idle, .wf-name i.idle { background: repeating-linear-gradient(-45deg, rgba(244,238,230,.28) 0 3px, rgba(244,238,230,.08) 3px 6px); }
.span-detail { padding: 18px; border-radius: 14px; background: rgba(5, 4, 4, 0.5); border: 1px solid var(--line); align-self: start; }
.sd-k { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--mute); }
.sd-name { margin: 8px 0 12px; font: 500 15px var(--mono); color: var(--ink); word-break: break-word; }
.sd-meta { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 0 0 12px; font: 12px var(--mono); }
.sd-meta dt { color: var(--mute); }
.sd-meta dd { margin: 0; color: var(--ink-2); }
.sd-note { font-size: 13.5px; line-height: 1.55; color: var(--ink-2); }
.tracer-foot { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--line); }
.tracer-foot div { display: grid; gap: 4px; }
.tracer-foot span { font: 11px var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--mute); }
.tracer-foot b { font: 400 clamp(22px, 2.2vw, 32px) var(--serif); color: var(--ink); font-variant-numeric: tabular-nums; }
@media (max-width: 760px) { .tracer-foot { grid-template-columns: repeat(2, 1fr); } .tracer { padding: 12px; } .waterfall { --nameW: 128px; } .wf-name { font-size: 10.5px; } .wf-lane { margin-right: 44px; } }
.tracer-legend { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px; margin-top: 14px; font-size: 11px; color: var(--mute); }
.tracer-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: -8px; }

/* ----------------------------------------------------------------- graph */
.graph-wrap { position: relative; height: clamp(520px, 72vh, 720px); overflow: hidden; }
#graph { position: absolute; inset: 0; width: 100%; height: 100%; cursor: grab; }
#graph:active { cursor: grabbing; }
.evidence { position: absolute; right: 16px; top: 16px; bottom: 16px; width: min(360px, 42%); padding: 18px 18px 8px; overflow: auto; border-radius: 16px; background: rgba(12, 10, 9, 0.92); border: 1px solid var(--line); }
.ev-k { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ember); }
.ev-title { margin: 8px 0 14px; font: 400 26px/1.1 var(--serif); color: var(--ink); }
.ev-list li { padding: 10px 0; border-top: 1px solid var(--line); font-size: 13.5px; line-height: 1.55; color: var(--ink-2); }
.ev-list li small { display: block; margin-bottom: 4px; font: 500 10.5px var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--amber); }
.ev-list li strong { color: var(--ink); font-weight: 600; }
.ev-empty { font-size: 13.5px; color: var(--mute); }
@media (max-width: 860px) {
  .graph-wrap { height: auto; }
  #graph { position: relative; height: 440px; }
  .evidence { position: relative; inset: auto; width: auto; margin: 0 12px 12px; max-height: 360px; }
}
.skill-groups { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px 32px; margin-top: 40px; }
@media (max-width: 980px) { .skill-groups { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .skill-groups { grid-template-columns: 1fr; } }
.sg h3 { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; font: 600 14px var(--sans); color: var(--ink); }
.dot { width: 9px; height: 9px; border-radius: 50%; }
.c1 { background: var(--ember); } .c2 { background: var(--amber); } .c3 { background: var(--ok); } .c4 { background: var(--cool); } .c5 { background: var(--violet); } .c6 { background: #e6dccf; }
.skills { display: flex; flex-wrap: wrap; gap: 6px; }
.skill { padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line-2); font-size: 13px; color: var(--ink-2); transition: all 0.25s; }
.skill:hover { border-color: var(--ember); color: var(--ink); }
.skill[aria-pressed='true'] { background: var(--ember); border-color: var(--ember); color: #160c07; }
.allskills { margin-top: 36px; border-top: 1px solid var(--line); }
.allskills summary { cursor: pointer; list-style: none; display: flex; align-items: center; gap: 12px; padding: 18px 0; font: 500 13px var(--mono); color: var(--ink-2); }
.allskills summary::-webkit-details-marker { display: none; }
.allskills summary::before { content: '+'; display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 6px; border: 1px solid var(--line-2); color: var(--ember); }
.allskills[open] summary::before { content: '−'; }
.allskills-body { display: grid; gap: 12px; padding-bottom: 12px; font-size: 14.5px; line-height: 1.65; color: var(--ink-2); max-width: 110ch; }
.allskills-body ul { display: grid; gap: 8px; }
.allskills-body b { color: var(--ink); }

/* -------------------------------------------------------------- journey */
.timeline { position: relative; max-width: 760px; }
.timeline::before, .timeline::after { content: ''; position: absolute; left: 95px; top: 10px; bottom: 10px; width: 1px; background: var(--line-2); }
.timeline::after { background: linear-gradient(var(--ember), var(--amber)); transform-origin: top; transform: scaleY(var(--p, 0)); box-shadow: 0 0 12px rgba(255, 122, 69, 0.5); }
.ms { position: relative; display: grid; grid-template-columns: 80px minmax(0, 1fr); gap: 32px; padding: 0 0 clamp(34px, 6vh, 56px); }
.ms::before { content: ''; position: absolute; left: 91px; top: 9px; width: 9px; height: 9px; border-radius: 50%; background: var(--bg); border: 1px solid var(--line-2); z-index: 1; transition: background 0.4s, border-color 0.4s, box-shadow 0.4s; }
.ms.lit::before { background: var(--ember); border-color: var(--ember); box-shadow: 0 0 0 5px rgba(255, 122, 69, 0.16); }
.ms-y { padding-top: 3px; font-size: 13px; color: var(--mute); text-align: right; }
.ms.lit .ms-y { color: var(--ember-2); }
.ms h3 { font: 400 clamp(26px, 2.4vw, 36px)/1.1 var(--serif); margin-bottom: 6px; }
.ms.ai h3::after { content: 'AI'; margin-left: 10px; padding: 2px 7px; border-radius: 5px; vertical-align: 0.35em; font: 600 10px var(--mono); color: #160c07; background: var(--ember); }
.ms p { max-width: 54ch; color: var(--ink-2); line-height: 1.6; }
@media (max-width: 600px) { .ms { grid-template-columns: 52px 1fr; gap: 26px; } .timeline::before, .timeline::after { left: 66px; } .ms::before { left: 62px; } }

/* ---------------------------------------------------------- experience */
.jobs { border-top: 1px solid var(--line); }
.job { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 36px; padding: clamp(30px, 5vh, 46px) 0; border-bottom: 1px solid var(--line); }
@media (max-width: 860px) { .job { grid-template-columns: 1fr; gap: 12px; } }
.job-when { display: flex; flex-direction: column; gap: 6px; font: 500 12.5px/1.5 var(--mono); color: var(--mute); }
.job-when .where { color: var(--mute-2); }
.job-when .now { align-self: flex-start; display: inline-flex; align-items: center; gap: 6px; margin-top: 6px; padding: 3px 9px; border-radius: 999px; color: var(--ok); border: 1px solid rgba(126, 224, 168, 0.35); font-size: 11px; }
.job h3 { font: 400 clamp(26px, 2.6vw, 38px)/1.08 var(--serif); letter-spacing: -0.01em; }
.job h3 .org { color: var(--ember-2); font-style: italic; }
.job-sub { margin-top: 8px; font-size: 14.5px; color: var(--mute); max-width: 72ch; }
.job ul { margin-top: 16px; display: grid; gap: 9px; max-width: 82ch; }
.job li { position: relative; padding-left: 20px; font-size: 15.5px; line-height: 1.62; color: var(--ink-2); border-radius: 6px; transition: background 0.3s, opacity 0.3s; }
.job li::before { content: ''; position: absolute; left: 2px; top: 0.76em; width: 8px; height: 2px; border-radius: 1px; background: var(--ember); }
.job li strong { color: var(--ink); font-weight: 600; }
.job .stack { padding-top: 16px; }
[data-tags].hit { background: var(--hl); box-shadow: -8px 0 0 var(--hl), 8px 0 0 var(--hl); }
.flash { animation: flash 2s var(--ease); }
@keyframes flash { 0%, 45% { background: var(--hl); box-shadow: -8px 0 0 var(--hl), 8px 0 0 var(--hl); } 100% { background: transparent; box-shadow: none; } }
.creds { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 48px; }
@media (max-width: 900px) { .creds { grid-template-columns: 1fr; } }
.cred { padding: 22px; }
.cred h3 { margin-bottom: 14px; font: 500 11.5px var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ember); }
.cred li { padding: 10px 0; border-top: 1px solid var(--line); font-size: 14.5px; line-height: 1.5; }
.cred li:first-child { border-top: 0; padding-top: 0; }
.cred li b { display: block; color: var(--ink); font-weight: 600; }
.cred li span { color: var(--mute); font-size: 13.5px; }

/* ------------------------------------------------------------------- ask */
.ask { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(28px, 5vw, 80px); align-items: start; }
@media (max-width: 960px) { .ask { grid-template-columns: 1fr; } }
.ask .big-h { margin-bottom: 26px; }
.ask-box { overflow: hidden; }
.ask-form { display: flex; align-items: center; gap: 10px; padding: 14px; border-bottom: 1px solid var(--line); }
.ask-prompt { color: var(--ember); font-size: 20px; padding-left: 6px; }
.ask-form input { flex: 1; min-width: 0; height: 48px; padding: 0 6px; border: 0; background: none; color: var(--ink); font: 400 17px var(--sans); outline: none; }
.ask-form input::placeholder { color: var(--mute-2); }
.ask-form button { height: 44px; padding: 0 20px; border-radius: 999px; background: var(--ember); color: #160c07; font-weight: 600; }
.ask-suggest { display: flex; flex-wrap: wrap; gap: 6px; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.ask-suggest button { padding: 6px 12px; border-radius: 999px; border: 1px dashed var(--line-2); font-size: 13px; color: var(--mute); transition: all 0.2s; }
.ask-suggest button:hover { border-style: solid; border-color: var(--ember); color: var(--ink); }
#askOut { padding: 20px; min-height: 260px; }
#askOut:empty::before { content: attr(data-empty); display: block; color: var(--mute-2); font: 13px/1.6 var(--mono); }
.ask-q { margin-bottom: 14px; font: 500 13px var(--mono); color: var(--ember-2); }
.ask-q::before { content: '› '; }
.ask-hits { counter-reset: hit; display: grid; gap: 10px; }
.ask-hits li { counter-increment: hit; position: relative; padding: 14px 16px 12px 46px; border-radius: 14px; background: rgba(244, 238, 230, 0.035); border: 1px solid var(--line); animation: hitIn 0.6s var(--ease) both; }
.ask-hits li:nth-child(2) { animation-delay: 0.08s; } .ask-hits li:nth-child(3) { animation-delay: 0.16s; } .ask-hits li:nth-child(4) { animation-delay: 0.24s; }
@keyframes hitIn { from { opacity: 0; transform: translateY(10px); } }
.ask-hits li::before { content: counter(hit); position: absolute; left: 14px; top: 14px; width: 20px; height: 20px; display: grid; place-items: center; border-radius: 6px; background: var(--ember); color: #160c07; font: 700 11px var(--mono); }
.ask-hits p { font-size: 14.5px; line-height: 1.55; color: var(--ink-2); }
.ask-hits mark { background: var(--hl); color: var(--ink); border-radius: 3px; padding: 0 2px; }
.ask-meta { display: flex; align-items: center; gap: 12px; margin-top: 10px; }
.ask-src { font: 500 11.5px var(--mono); color: var(--mute); text-decoration: none; }
.ask-src:hover { color: var(--ember); }
.ask-score { flex: 1; max-width: 120px; height: 3px; border-radius: 2px; background: var(--line); overflow: hidden; }
.ask-score i { display: block; height: 100%; background: var(--amber); }
.ask-foot, .ask-none { margin-top: 14px; font: 12px/1.5 var(--mono); color: var(--mute-2); }

/* ------------------------------------------------------------- colophon */
.pipeline { position: relative; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; }
.pipeline::before { content: ''; position: absolute; left: 4%; right: 4%; top: 38px; height: 1px; background: linear-gradient(90deg, transparent, var(--ember), transparent); opacity: 0.5; }
@media (max-width: 1080px) { .pipeline { grid-template-columns: repeat(2, 1fr); } .pipeline::before { display: none; } }
@media (max-width: 600px) { .pipeline { grid-template-columns: 1fr; } }
.pipe { position: relative; padding: 22px 20px 20px; }
.pipe-n { display: inline-grid; place-items: center; width: 34px; height: 34px; margin-bottom: 18px; border-radius: 50%; background: var(--bg); border: 1px solid var(--ember); color: var(--ember); font-size: 12px; }
.pipe h3 { font: 400 24px/1.1 var(--serif); margin-bottom: 8px; }
.pipe p { font-size: 14px; line-height: 1.55; color: var(--ink-2); }
.built { margin-top: 26px; padding-top: 0; }

/* -------------------------------------------------------------- contact */
.contact { position: relative; padding: clamp(140px, 22vh, 240px) 0 clamp(80px, 12vh, 140px); }
.contact-h { font: 400 clamp(48px, 7.4vw, 132px)/0.94 var(--serif); letter-spacing: -0.03em; max-width: 14ch; text-wrap: balance; margin-bottom: 28px; }
.contact-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 44px 0 18px; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-card { position: relative; display: block; padding: 22px 22px 20px; text-decoration: none; color: var(--ink); transition: border-color 0.3s; }
.contact-card:hover { border-color: rgba(255, 122, 69, 0.6); }
.contact-card small { display: block; margin-bottom: 10px; font: 500 11px var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--mute); }
.contact-card b { font-weight: 500; font-size: 17px; word-break: break-word; }
.contact-card .arr { position: absolute; right: 20px; top: 20px; color: var(--ember); font-size: 18px; transition: transform 0.4s var(--ease); }
.contact-card:hover .arr { transform: translate(4px, -4px); }
.contact-meta { display: flex; flex-wrap: wrap; gap: 10px 36px; margin-top: 36px; font-size: 12.5px; color: var(--mute); }
.contact-meta b { color: var(--ink-2); font-weight: 500; }
footer { border-top: 1px solid var(--line); }
.foot-in { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; padding-block: 24px; font-size: 12px; color: var(--mute); }
footer kbd { font: inherit; padding: 1px 6px; border-radius: 4px; border: 1px solid var(--line-2); }

/* ------------------------------------------------------------- palette */
#palette { position: fixed; inset: 0; z-index: 160; display: grid; place-items: start center; padding: 13vh 16px 16px; background: rgba(5, 4, 4, 0.6); backdrop-filter: blur(6px); }
#palette[hidden] { display: none; }
.pal-box { width: min(620px, 100%); overflow: hidden; border-radius: 18px; background: rgba(22, 19, 17, 0.96); border: 1px solid var(--line-2); box-shadow: 0 40px 120px -30px rgba(0, 0, 0, 0.9); animation: palIn 0.2s var(--ease); }
@keyframes palIn { from { opacity: 0; transform: translateY(-10px) scale(0.98); } }
.pal-box input { width: 100%; height: 58px; padding: 0 20px; border: 0; border-bottom: 1px solid var(--line); background: none; color: var(--ink); font: 400 17px var(--sans); outline: none; }
#palList { max-height: min(56vh, 420px); overflow: auto; padding: 6px; }
#palList li[role='option'] { display: flex; justify-content: space-between; gap: 10px; padding: 10px 12px; border-radius: 10px; font-size: 14.5px; color: var(--ink-2); cursor: pointer; }
#palList li[aria-selected='true'] { background: rgba(255, 122, 69, 0.12); color: var(--ink); }
#palList kbd { font: 11.5px var(--mono); color: var(--mute); max-width: 50%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pal-g { padding: 10px 12px 4px; font: 500 10.5px var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--mute-2); }
.pal-empty { padding: 16px 12px; color: var(--mute); }
.pal-foot { display: flex; gap: 16px; padding: 10px 16px; border-top: 1px solid var(--line); font-size: 11px; color: var(--mute-2); }
body.pal-open { overflow: hidden; }
#toast { position: fixed; left: 50%; bottom: 28px; z-index: 170; transform: translate(-50%, 20px); opacity: 0; pointer-events: none; padding: 11px 18px; border-radius: 999px; background: var(--ink); color: var(--bg); font-size: 14px; font-weight: 500; transition: opacity 0.25s, transform 0.35s var(--ease); }
#toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ------------------------------------------------------- reveal helpers */
.js:not(.rm) [data-reveal] { opacity: 0; transform: translateY(30px); }

/* ------------------------------------------------- reduced motion / no-GL */
.rm .hero::after, .no-gl .hero::after {
  content: ''; position: absolute; z-index: -1; right: -4vw; top: 50%; width: min(52vw, 760px); aspect-ratio: 1; transform: translateY(-58%);
  background: url('../planet.webp') center / contain no-repeat; mix-blend-mode: screen; opacity: 0.9; pointer-events: none;
}
@media (max-width: 900px) { .rm .hero::after, .no-gl .hero::after { width: 90vw; top: 6%; right: -22vw; transform: none; opacity: 0.4; } }
.rm .grain, .rm #cursor { display: none; }
.rm .thesis, .rm .proof { height: auto; }
.rm .thesis .sticky, .rm .proof .sticky { position: static; height: auto; padding: 120px 0; }
.rm .thesis-text .word { opacity: 1; }
.rm .step { grid-area: auto; opacity: 1; transform: none; margin-bottom: 56px; }
.rm .step .viz-call .seg { transform: none; }
.rm .step-count { display: none; }
.rm .systems { height: auto !important; }
.rm .systems .sticky { position: static; height: auto; display: block; overflow: visible; }
.rm .track { flex-direction: column; align-items: stretch; transform: none !important; padding-block: 80px 0; }
.rm .panel-intro, .rm .sys { width: 100%; max-height: none; }
.rm .sys-progress { display: none; }
.rm .scroll-cue i, .rm .pulse::after { animation: none; }

/* ------------------------------------------------------------------ RTL */
[dir='rtl'] .rail { right: auto; left: 22px; }
[dir='rtl'] .track, [dir='rtl'] .waterfall, [dir='rtl'] .dg, [dir='rtl'] .viz { direction: ltr; }
[dir='rtl'] .job li, [dir='rtl'] .pts li { padding-left: 0; padding-right: 20px; }
[dir='rtl'] .job li::before, [dir='rtl'] .pts li::before { left: auto; right: 2px; }
[dir='rtl'] .evidence { right: auto; left: 16px; }
:is(:lang(zh), :lang(ja), :lang(hi), :lang(ar)) :is(.hero-title, .big-h, .thesis-text, .proof-h, .contact-h, .sys h3, .job h3, .ms h3, .pipe h3, .ev-title, .step-c) { font-family: var(--sans); font-weight: 600; letter-spacing: -0.01em; }
:is(:lang(zh), :lang(ja), :lang(hi), :lang(ar)) .hero-title { font-size: clamp(40px, 6vw, 96px); line-height: 1.12; }
:is(:lang(zh), :lang(ja), :lang(hi), :lang(ar)) :is(.big-h, .contact-h) { font-size: clamp(32px, 4.4vw, 68px); line-height: 1.15; }
:is(:lang(zh), :lang(ja), :lang(hi), :lang(ar)) .thesis-text { font-size: clamp(26px, 3.4vw, 54px); line-height: 1.35; font-weight: 500; }
:is(:lang(zh), :lang(ja), :lang(hi), :lang(ar), :lang(ru)) em { font-family: inherit; font-style: normal; }
:is(:lang(ar), :lang(hi)) :is(.label, .step-k, .step-note, .badge, .sys-org, .contact-meta, .contact-card small, .cred h3, .ev-k, .ev-list small, footer, .loader-meta, .drag-hint, .tracer-foot span, .tracer-legend, .sd-k, .scroll-cue, .rail a span) { font-family: var(--sans); letter-spacing: 0; text-transform: none; }
:lang(de) main :is(p, li), :lang(ru) main :is(p, li), :lang(fr) main :is(p, li) { hyphens: auto; }
:is(:lang(de), :lang(ru), :lang(fr), :lang(es), :lang(pt)) .hero-title { font-size: clamp(48px, 7vw, 128px); max-width: 13.5ch; }
:is(:lang(de), :lang(ru), :lang(fr), :lang(es), :lang(pt)) .thesis-text { font-size: clamp(30px, 4.2vw, 72px); max-width: 23ch; }
main p, main li { overflow-wrap: break-word; }

/* ---------------------------------------------------------------- print */
@media print {
  #nav, .rail, #field, .grain, .vignette, #cursor, #loader, .marquee, .tracer, .graph-wrap, .ask-box, #palette, #toast { display: none !important; }
  body { background: #fff; color: #000; }
  .thesis, .proof, .systems { height: auto !important; }
  .sticky { position: static !important; height: auto !important; }
  .step { grid-area: auto; opacity: 1; transform: none; }
  .track { flex-direction: column; transform: none !important; }
}

/* ===================================================== v2.1 additions */
/* proof: clickable ticks + call legend */
.ticks { display: flex; gap: 6px; margin-top: clamp(24px, 4vh, 40px); }
.ticks button { padding: 7px 12px; border-radius: 999px; border: 1px solid var(--line-2); font: 500 12px var(--mono); color: var(--mute); transition: all 0.3s; }
.ticks button:hover { color: var(--ink); border-color: var(--ink-2); }
.ticks button[aria-selected='true'] { color: #160c07; background: var(--ember); border-color: var(--ember); }
.viz-legend { display: flex; gap: 3px; max-width: 420px; margin-top: 6px; font-size: 10px; color: var(--mute); }
.viz-legend span { width: var(--w); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rm .ticks { display: none; }

/* systems: focus the centred card */
.track .sys.dim { opacity: 0.45; transform: scale(0.96); }

/* agent trace: scroll-driven playhead on desktop */
.tracer-pin { position: relative; }
@media (min-width: 1000px) {
  .js:not(.rm) .tracer-pin { height: 240vh; }
  .js:not(.rm) .tracer-pin .tracer { position: sticky; top: 84px; }
}
.wf-playhead { position: absolute; top: 18px; bottom: 0; width: 1px; background: var(--ember); box-shadow: 0 0 12px var(--ember); pointer-events: none; opacity: 0; transition: opacity 0.3s; }
.waterfall.scrubbing .wf-playhead { opacity: 1; }

/* experience: a spine that draws itself; globe lives on the right */
.experience .sec-head { grid-template-columns: minmax(0, 1fr); max-width: 860px; }
.experience .jobs { position: relative; border-top: 0; padding-left: 34px; }
@media (min-width: 1100px) { .experience .jobs { max-width: min(780px, 60%); } }
.experience .jobs::before, .experience .jobs::after { content: ''; position: absolute; left: 6px; top: 8px; bottom: 8px; width: 1px; background: var(--line-2); }
.experience .jobs::after { background: linear-gradient(var(--ember), var(--amber)); transform-origin: top; transform: scaleY(var(--p, 0)); box-shadow: 0 0 12px rgba(255, 122, 69, 0.5); }
.experience .job { grid-template-columns: 150px minmax(0, 1fr); gap: 26px; border-bottom: 0; border-top: 1px solid var(--line); position: relative; }
.experience .job::before { content: ''; position: absolute; left: -32px; top: calc(clamp(30px, 5vh, 46px) + 6px); width: 9px; height: 9px; border-radius: 50%; background: var(--bg); border: 1px solid var(--line-2); transition: background 0.4s, border-color 0.4s, box-shadow 0.4s; }
.experience .job.lit::before { background: var(--ember); border-color: var(--ember); box-shadow: 0 0 0 5px rgba(255, 122, 69, 0.16); }
@media (max-width: 860px) { .experience .job { grid-template-columns: 1fr; } }
.rm .experience .jobs { --p: 1; }

/* quieter secondary headings: orange italic is reserved for hero, proof, agents, contact */
:is(.caps, .experience, .ask-sec, .colophon) .big-h em { color: var(--ink-2); }

/* colophon: pipeline + build receipt */
.colo-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr); gap: clamp(24px, 4vw, 64px); align-items: start; }
@media (max-width: 980px) { .colo-grid { grid-template-columns: 1fr; } }
.colo-grid .pipeline { grid-template-columns: 1fr; gap: 0; }
.colo-grid .pipeline::before { left: 17px; right: auto; top: 20px; bottom: 20px; width: 1px; height: auto; background: linear-gradient(var(--ember), transparent); display: block; }
.colo-grid .pipe { display: grid; grid-template-columns: 34px minmax(0, 1fr); column-gap: 18px; padding: 0 0 26px; }
.colo-grid .pipe-n { grid-row: span 2; margin: 0; position: relative; z-index: 1; }
.colo-grid .pipe h3 { align-self: center; margin: 0 0 4px; }
.colo-grid .pipe p { grid-column: 2; }
.receipt { position: relative; padding: 26px 26px 22px; border-radius: 6px; background: #f3ede3; color: #1a1613; font: 13px/1.5 var(--mono); box-shadow: 0 40px 90px -40px rgba(0, 0, 0, 0.9); transform: rotate(-0.6deg); }
.receipt::after { content: ''; position: absolute; left: 0; right: 0; bottom: -10px; height: 10px; background: linear-gradient(-45deg, transparent 6px, #f3ede3 0) 0 0 / 14px 10px repeat-x, linear-gradient(45deg, transparent 6px, #f3ede3 0) 0 0 / 14px 10px repeat-x; }
.rc-h { display: flex; justify-content: space-between; gap: 12px; padding-bottom: 12px; margin-bottom: 10px; border-bottom: 1px dashed #b9ad9d; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; font-size: 12px; }
.receipt dl { margin: 0; display: grid; gap: 5px; }
.receipt dl div { display: flex; align-items: baseline; gap: 8px; }
.receipt dt { flex: none; max-width: 70%; }
.receipt dl div::after { content: ''; order: 1; flex: 1; border-bottom: 1px dotted #a99c8a; transform: translateY(-4px); }
.receipt dd { order: 2; margin: 0; font-weight: 600; white-space: nowrap; }
.rc-foot { margin-top: 14px; padding-top: 12px; border-top: 1px dashed #b9ad9d; color: #6b4a2f; font-size: 12px; }
:lang(ar) .receipt, :lang(hi) .receipt { font-family: var(--sans); }

/* graph on phones: the list is clearer than a tiny network */
@media (max-width: 700px) {
  #graph { display: none; }
  .graph-wrap { background: none; border: 0; box-shadow: none; }
  .evidence { position: relative; inset: auto; width: auto; margin: 0; max-height: 440px; }
}

.ask-trace { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 6px; margin-top: 14px; font: 11.5px/1.6 var(--mono); color: var(--mute-2); }
.ask-trace b { padding: 1px 7px; border-radius: 5px; font-weight: 500; color: var(--ink); background: rgba(255, 122, 69, 0.16); border: 1px solid rgba(255, 122, 69, 0.4); }
.ask-trace i { font-style: normal; padding: 1px 7px; border-radius: 5px; color: var(--ink-2); border: 1px dashed var(--line-2); }

/* Ask: Claude answers (streamed, cited) */
.ask-ans { animation: hitIn 0.5s var(--ease) both; }
.ask-ans p { margin-bottom: 10px; font-size: 15.5px; line-height: 1.65; color: var(--ink); }
.ask-ans.is-reading::before { content: attr(data-reading); display: inline-flex; align-items: center; gap: 10px; font: 12.5px/1.6 var(--mono); color: var(--mute); }
.ask-ans.is-reading::after { content: ''; display: inline-block; width: 6px; height: 6px; margin-left: 10px; border-radius: 50%; background: var(--ember); vertical-align: 2px; animation: askPulse 1s ease-in-out infinite; }
.ask-ans.is-streaming p:last-child::after { content: ''; display: inline-block; width: 7px; height: 1.05em; margin-left: 3px; vertical-align: -0.18em; background: var(--ember); animation: askBlink 0.9s steps(2) infinite; }
@keyframes askPulse { 50% { opacity: 0.25; transform: scale(0.7); } }
@keyframes askBlink { 50% { opacity: 0; } }
.ask-cite { display: inline-grid; place-items: center; min-width: 18px; height: 18px; margin: 0 1px; padding: 0 4px; border-radius: 5px; background: rgba(255, 122, 69, 0.16); border: 1px solid rgba(255, 122, 69, 0.45); color: var(--ink); font: 600 10.5px/1 var(--mono); vertical-align: 0.15em; text-decoration: none; transition: background 0.2s, color 0.2s; }
.ask-cite:hover, .ask-cite:focus-visible { background: var(--ember); color: #160c07; }
.ask-sources { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line); animation: hitIn 0.6s var(--ease) both; }
.ask-sources-h { margin-bottom: 8px; font: 500 11px/1 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--mute-2); }
.ask-sources ol { display: grid; gap: 8px; }
.ask-sources li { display: grid; gap: 2px; }
.ask-sources .ask-src b { display: inline-grid; place-items: center; min-width: 18px; height: 18px; margin-right: 4px; border-radius: 5px; background: var(--ember); color: #160c07; font-size: 10.5px; }
.ask-sources li span { font-size: 13px; line-height: 1.5; color: var(--mute); }
.ask-note { margin-bottom: 12px; padding: 8px 12px; border-radius: 10px; border: 1px dashed var(--line-2); font: 12px/1.5 var(--mono); color: var(--amber); }
@media (prefers-reduced-motion: reduce) { .ask-ans.is-reading::after, .ask-ans.is-streaming p:last-child::after { animation: none; } }

/* ===================================================== v2.2 phones & touch */
/* Everything below is scoped to touch, narrow, or short viewports, plus RTL
   mirroring fixes; desktop (≥1024px, mouse) renders exactly as before. */

/* Reduced-motion / no-WebGL planet hangs past the right edge; phones would
   widen the layout viewport to fit it, so clip it to the hero. */
.rm .hero, .no-gl .hero { overflow-x: clip; }
@media (max-width: 900px) { .rm .hero, .no-gl .hero { overflow: hidden; } }

@media (max-width: 1023px) {
  /* viewport-fit=cover: keep content clear of the notch in landscape */
  :root { --gut: max(clamp(20px, 4.2vw, 64px), env(safe-area-inset-left), env(safe-area-inset-right)); }
  .foot-in { padding-bottom: calc(24px + env(safe-area-inset-bottom)); }
  #toast { bottom: calc(28px + env(safe-area-inset-bottom)); }
  .grain { inset: -8%; }   /* same look, a third of the texture memory */
  #langMenu { max-height: calc(100svh - 84px); overflow-y: auto; overscroll-behavior: contain; }
}

/* touch: no hover-only affordances, 44px targets, native-feeling taps */
@media (hover: none) and (pointer: coarse) {
  html { -webkit-tap-highlight-color: transparent; }
  .kbd-hint, .pal-foot { display: none; }
  .pill-btn { height: 44px; min-width: 44px; justify-content: center; }
  .cta-pill { height: 44px; }
  #langMenu button { min-height: 44px; align-items: center; }
  .ticks button { min-width: 44px; min-height: 44px; }
  .tabs button, .replay, .skill, .ask-suggest button { min-height: 44px; }
  .skills, .ask-suggest { gap: 8px; }
  .ask-meta a.ask-src { padding-block: 14px; margin-block: -14px; }
  .wf-row { height: 32px; }
  .wf-bar { top: 10px; }
  .wf-dur { top: 8px; }
  .btn { will-change: auto; }
  :is(.btn, .pill-btn, .skill, .ticks button, .tabs button, .replay, .ask-suggest button, .ask-form button):active { transform: scale(0.97); transition-duration: 0.1s; }
  #graph { touch-action: pan-y; }
  .ask-form input { -webkit-appearance: none; appearance: none; }
}

/* systems: cards grow to fit their content once the gallery stacks */
@media (max-width: 900px) { .sys { height: auto; } }
@media (min-width: 700px) and (max-width: 900px) {
  .track { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .panel-intro { grid-column: 1 / -1; }
}

/* phones: readable body copy, full-width CTAs, palette above the keyboard */
@media (max-width: 760px) {
  .pts li, .pipe p, .ev-list li, .ask-hits p, .cred li, .job-sub, .allskills-body { font-size: 15px; }
  .sys > p { font-size: 15.5px; }
  .sd-note { font-size: 14.5px; }
  .cred li span, .ask-sources li span { font-size: 14px; }
  .wf-axis { margin-right: 44px; }   /* line the time axis up with the bars */
  .wf-name { padding-left: calc(8px + var(--d, 0) * 10px); }
}
@media (max-width: 560px) {
  .cta-row .btn { flex: 1 1 auto; justify-content: center; }
  #palette { padding-top: max(12px, env(safe-area-inset-top)); }
  #palList { max-height: min(38svh, 420px); }
}

/* short landscape phones: sticky chapters can't fit under the nav, so they
   stack like the reduced-motion layout (main.js mirrors this query) */
@media (max-width: 1023px) and (max-height: 500px) {
  .nav-in { height: 56px; }
  #langMenu:not([hidden]) { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); min-width: 340px; }
  .thesis, .proof { height: auto; }
  .thesis .sticky, .proof .sticky { position: static; height: auto; padding: 88px 0 24px; }
  .proof-h { display: block; }
  .proof-copy { max-width: none; padding: 0; margin: 0; background: none; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 48px; }
  .step { grid-area: auto; opacity: 1; transform: none; pointer-events: auto; margin-bottom: 48px; }
  .step .viz-call .seg { transform: none; }
  .gl .proof-num { position: static; width: auto; height: auto; overflow: visible; clip: auto; }
  .ticks, .step-count { display: none; }
}

/* RTL mirroring */
[dir='rtl'] #langMenu { right: auto; left: 0; }
[dir='rtl'] .track > * { direction: rtl; }
[dir='rtl'] .experience .jobs { padding-left: 0; padding-right: 34px; }
[dir='rtl'] .experience .jobs::before, [dir='rtl'] .experience .jobs::after { left: auto; right: 6px; }
[dir='rtl'] .experience .job::before { left: auto; right: -32px; }
[dir='rtl'] .colo-grid .pipeline::before { left: auto; right: 17px; }
[dir='rtl'] .ask-hits li { padding: 14px 46px 12px 16px; }
[dir='rtl'] .ask-hits li::before { left: auto; right: 14px; }
[dir='rtl'] .contact-card .arr { right: auto; left: 20px; }