/* =========================================================
   Damodar Dasi — Engineering portfolio design system
   Palette: graphite / white / cyan. Amber is reserved for
   "RFQ · awaiting PO" status only.
   ========================================================= */
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:400;font-display:swap;src:url("assets/fonts/IBMPlexSans-Regular.woff2") format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:500;font-display:swap;src:url("assets/fonts/IBMPlexSans-Medium.woff2") format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:600;font-display:swap;src:url("assets/fonts/IBMPlexSans-SemiBold.woff2") format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:400;font-display:swap;src:url("assets/fonts/IBMPlexMono-Regular.woff2") format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:500;font-display:swap;src:url("assets/fonts/IBMPlexMono-Medium.woff2") format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:400;font-display:swap;src:url("assets/fonts/inter-latin-400-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:500;font-display:swap;src:url("assets/fonts/inter-latin-500-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:600;font-display:swap;src:url("assets/fonts/inter-latin-600-normal.woff2") format("woff2")}
@font-face{font-family:"Manrope";font-style:normal;font-weight:600;font-display:swap;src:url("assets/fonts/manrope-latin-600-normal.woff2") format("woff2")}
@font-face{font-family:"Manrope";font-style:normal;font-weight:700;font-display:swap;src:url("assets/fonts/manrope-latin-700-normal.woff2") format("woff2")}
@font-face{font-family:"Manrope";font-style:normal;font-weight:800;font-display:swap;src:url("assets/fonts/manrope-latin-800-normal.woff2") format("woff2")}
:root{
  --bg:#071018;
  --bg-2:#0B1118;
  --panel:#101A24;
  --panel-2:#14212C;
  --line:#1E2D3A;
  --line-2:#2A3D4D;
  --text:#F1F5F9;
  --muted:#94A3B8;
  --dim:#64748B;
  --accent:#22D3EE;
  --accent-2:#38BDF8;
  --amber:#F59E0B;
  --max:1200px;
  --sans:"IBM Plex Sans",Inter,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --nav-h:64px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 12px)}
body{margin:0;background:var(--bg);color:var(--text);font:400 16px/1.65 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
/* faint drawing-sheet grid behind everything */
body:before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(rgba(56,189,248,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.035) 1px,transparent 1px);
  background-size:48px 48px;mask-image:radial-gradient(ellipse at 70% 0%,#000 0,transparent 75%)}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto}
::selection{background:rgba(34,211,238,.25)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}
.mono{font-family:var(--mono)}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:#03141a;padding:8px 12px;z-index:100}
.skip:focus{left:12px}

/* ---------------- Navigation ---------------- */
.nav.open-menu{backdrop-filter:none;-webkit-backdrop-filter:none;background:var(--bg)}
.nav{position:sticky;top:0;z-index:50;height:var(--nav-h);display:flex;justify-content:space-between;align-items:center;gap:24px;padding:0 max(24px,calc((100vw - var(--max))/2 + 28px));
  background:rgba(7,16,24,.82);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);border-bottom:1px solid var(--line)}
.brand{display:flex;gap:12px;align-items:center;font-weight:600;letter-spacing:-.01em;white-space:nowrap}
.mark,.brand-mark{display:grid;place-items:center;width:34px;height:34px;border:1px solid var(--accent);color:var(--accent);font:600 11px/1 var(--mono);position:relative}
.mark:after,.brand-mark:after{content:"";position:absolute;right:-4px;bottom:-4px;width:6px;height:6px;border-right:1px solid var(--accent);border-bottom:1px solid var(--accent)}
.brand small{display:block;color:var(--dim);font:400 11px/1.2 var(--mono);letter-spacing:.02em}
.nav nav{display:flex;gap:2px;align-items:center}
.nav nav a{position:relative;padding:8px 10px;color:var(--muted);font:500 12px/1 var(--sans);letter-spacing:.08em;text-transform:uppercase;transition:color .2s}

.nav nav a.active{color:var(--text)}
.nav nav a.active:after{content:"";position:absolute;left:10px;right:10px;bottom:-14px;height:2px;background:var(--accent)}
.nav nav a.nav-cta{margin-left:8px;border:1px solid var(--line-2);color:var(--text)}

.menu{display:none;width:42px;height:42px;background:none;border:1px solid var(--line-2);color:var(--text);cursor:pointer;position:relative}
.menu span,.menu span:before,.menu span:after{position:absolute;left:11px;width:18px;height:1.5px;background:currentColor;transition:transform .25s,top .25s,opacity .2s}
.menu span{top:20px}.menu span:before,.menu span:after{content:"";left:0}
.menu span:before{top:-6px}.menu span:after{top:6px}
.menu[aria-expanded="true"] span{background:transparent}
.menu[aria-expanded="true"] span:before{top:0;transform:rotate(45deg)}
.menu[aria-expanded="true"] span:after{top:0;transform:rotate(-45deg)}

/* ---------------- Layout primitives ---------------- */
.wrap{max-width:var(--max);margin:0 auto;padding:0 28px}
.section{max-width:var(--max);margin:0 auto;padding:104px 28px}
.section + .section{border-top:1px solid var(--line)}
.sec-head{display:grid;grid-template-columns:120px 1fr;gap:0 24px;align-items:end;margin-bottom:48px}
.sec-no{font:500 12px/1 var(--mono);color:var(--accent);letter-spacing:.06em;padding-bottom:10px;border-bottom:1px solid var(--accent)}
.sec-head h2{margin:0;font-size:clamp(28px,3.4vw,40px);line-height:1.1;font-weight:600;letter-spacing:-.02em}
.sec-head p{grid-column:2;margin:14px 0 0;color:var(--muted);max-width:64ch}
.label{font:500 11px/1.4 var(--mono);color:var(--dim);letter-spacing:.08em;text-transform:uppercase}
.eyebrow{font:500 12px/1.4 var(--mono);color:var(--accent);letter-spacing:.14em;text-transform:uppercase}

/* ---------------- Buttons ---------------- */
.button,.btn{display:inline-flex;align-items:center;gap:9px;padding:13px 17px;border:1px solid var(--line-2);font:600 13px/1 var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--text);background:transparent;cursor:pointer;transition:border-color .2s,background .2s,color .2s}

.button.primary,.btn.primary{background:var(--accent);border-color:var(--accent);color:#03141A}

.button.ghost{border-color:transparent;padding-left:4px;padding-right:4px;color:var(--muted)}

.button svg{width:15px;height:15px}
.buttons{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-top:32px}

/* ---------------- Hero ---------------- */
.hero-home{max-width:var(--max);margin:0 auto;padding:72px 28px 56px;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:56px;align-items:center;min-height:calc(92vh - var(--nav-h))}
.hero-home .who{display:flex;align-items:center;gap:12px;margin-bottom:28px}
.hero-home .who:before{content:"";width:28px;height:1px;background:var(--accent)}
.hero-home h1{margin:0;font-weight:600;font-size:clamp(36px,4.2vw,56px);line-height:1.04;letter-spacing:-.03em;text-transform:uppercase}
.hero-home h1 span{display:block}
.hero-home .lede{margin:28px 0 0;max-width:56ch;color:var(--muted);font-size:17px;line-height:1.7}
.hero-facts{display:grid;grid-template-columns:repeat(3,auto);justify-content:start;gap:8px 28px;margin-top:36px;padding-top:22px;border-top:1px solid var(--line)}
.hero-facts div{display:flex;flex-direction:column;gap:2px}
.hero-facts b{font-weight:500;font-size:14px}
.ga{position:relative;border:1px solid var(--line-2);background:linear-gradient(180deg,rgba(16,26,36,.85),rgba(7,16,24,.9));aspect-ratio:640/520}
.ga svg{display:block;width:100%;height:100%}
.ga-caption{display:flex;justify-content:space-between;gap:12px;margin-top:10px;color:var(--dim);font:400 11px/1.4 var(--mono)}

/* GA drawing styles */
.ga .frame{fill:none;stroke:var(--line-2);stroke-width:1}
.ga .zone{fill:var(--dim);font:400 9px var(--mono)}
.ga .k{fill:none;stroke:var(--accent);stroke-width:1.3;stroke-linejoin:round;stroke-linecap:round}
.ga .k2{fill:none;stroke:var(--accent-2);stroke-width:.9;opacity:.75}
.ga .thin{fill:none;stroke:#5B7184;stroke-width:.8}
.ga .hid{fill:none;stroke:#5B7184;stroke-width:.8;stroke-dasharray:5 4}
.ga .ctr{fill:none;stroke:#5B7184;stroke-width:.7;stroke-dasharray:14 3 2 3}
.ga .fillp{fill:rgba(34,211,238,.06)}
.ga .pipe{fill:none;stroke:var(--accent);stroke-width:2.2;stroke-linejoin:round}
.ga .flow{fill:none;stroke:#E0FBFF;stroke-width:2.2;stroke-dasharray:4 22;stroke-linecap:round;opacity:.9;animation:flow 2.4s linear infinite}
.ga .flow.lube{stroke:var(--accent-2);stroke-width:1.4;animation-duration:3.6s}
.ga .bubble{fill:var(--bg);stroke:var(--accent-2);stroke-width:1}
.ga .tag{fill:var(--text);font:500 8px var(--mono);text-anchor:middle}
.ga .t{fill:var(--muted);font:400 9px var(--mono)}
.ga .t.hi{fill:var(--accent)}
.ga .tb{fill:var(--text);font:500 10px var(--sans)}
.ga .dim{fill:none;stroke:#7F95A8;stroke-width:.7}
.ga .arrow{fill:#7F95A8}
.ga .impeller{transform-origin:300px 290px;transform-box:view-box;animation:spin 14s linear infinite}
.ga .draw{stroke-dasharray:var(--len,1200);stroke-dashoffset:var(--len,1200);animation:draw 1.8s cubic-bezier(.6,.05,.3,1) forwards;animation-delay:var(--d,0s)}
.ga .fade{opacity:0;animation:fadein .8s ease forwards;animation-delay:var(--d,1.4s)}
@keyframes flow{to{stroke-dashoffset:-52}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes fadein{to{opacity:1}}

/* ---------------- Metrics (datasheet strip) ---------------- */
.metrics-strip{max-width:var(--max);margin:0 auto;padding:0 28px 24px}
.datasheet{display:grid;grid-template-columns:repeat(5,1fr);border:1px solid var(--line-2);background:rgba(11,17,24,.75)}
.datasheet>div{position:relative;padding:22px 22px 20px;border-right:1px solid var(--line)}
.datasheet>div:last-child{border-right:0}
.datasheet .tagline{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.datasheet .tagline span:last-child{color:var(--accent);font:500 10px/1 var(--mono)}
.datasheet .val{display:flex;align-items:baseline;gap:6px;font-weight:500;font-size:clamp(28px,3vw,40px);line-height:1;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.datasheet .val small{font:400 13px/1 var(--mono);color:var(--muted);letter-spacing:0}
.datasheet .what{margin-top:10px;font-size:13px;color:var(--muted);line-height:1.45}
.datasheet>div:before{content:"";position:absolute;left:-1px;top:-1px;width:9px;height:9px;border-left:2px solid var(--accent);border-top:2px solid var(--accent)}

/* ---------------- About ---------------- */
.about{display:grid;grid-template-columns:1.25fr .75fr;gap:64px}
.about-copy p{margin:0 0 20px;color:var(--muted);font-size:18px;line-height:1.75;max-width:62ch}
.about-copy p:first-child{color:var(--text);font-size:21px;line-height:1.6}
.about-copy strong{color:var(--text);font-weight:500}
.spec{border:1px solid var(--line-2);background:var(--bg-2)}
.spec-title{display:flex;justify-content:space-between;padding:12px 18px;border-bottom:1px solid var(--line-2);background:var(--panel)}
.spec dl{margin:0}
.spec dl>div{display:grid;grid-template-columns:118px 1fr;gap:14px;padding:13px 18px;border-bottom:1px solid var(--line)}
.spec dl>div:last-child{border-bottom:0}
.spec dt{font:500 11px/1.6 var(--mono);color:var(--dim);text-transform:uppercase;letter-spacing:.06em}
.spec dd{margin:0;font-size:14px;line-height:1.55}
.spec dd span{display:block;color:var(--muted);font-size:13px}

/* ---------------- Expertise ---------------- */
.disciplines{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line-2);border-left:1px solid var(--line-2)}
.disciplines article{padding:30px 28px 32px;border-right:1px solid var(--line-2);border-bottom:1px solid var(--line-2);min-height:250px;display:flex;flex-direction:column;transition:background .25s}

.disciplines .sym{width:56px;height:40px;margin-bottom:26px}
.disciplines .sym *{fill:none;stroke:var(--accent);stroke-width:1.4;stroke-linejoin:round;stroke-linecap:round}
.disciplines h3{margin:0 0 10px;font-size:19px;font-weight:600;letter-spacing:-.01em}
.disciplines p{margin:0;color:var(--muted);font-size:14.5px;line-height:1.65}
.disciplines .refs{margin-top:auto;padding-top:20px;font:400 11px/1.5 var(--mono);color:var(--dim)}
.disciplines a.more{margin-top:14px;color:var(--accent);font-size:13px;font-weight:500}


/* ---------------- Project register ---------------- */
.filters{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:20px}
.filters button{background:none;border:1px solid var(--line-2);color:var(--muted);padding:8px 14px;font:500 12px/1 var(--mono);letter-spacing:.04em;cursor:pointer;transition:color 200ms var(--ease-out),background-color 200ms var(--ease-out),border-color 200ms var(--ease-out),transform 160ms var(--ease-out)}

.filters button[aria-pressed="true"]{border-color:var(--accent);color:var(--accent);background:rgba(34,211,238,.06)}
.register{border:1px solid var(--line-2)}
.register-head,.register a[data-cat]{display:grid;grid-template-columns:96px minmax(0,2.2fr) minmax(0,1.5fr) minmax(0,1.2fr) 28px;gap:20px;align-items:center;padding:0 22px}
.register-head{height:40px;background:var(--panel);border-bottom:1px solid var(--line-2)}
.register a[data-cat]{padding-top:22px;padding-bottom:22px;border-bottom:1px solid var(--line);transition:background .2s}
.register a[data-cat]:last-child{border-bottom:0}


.register a[data-cat][hidden]{display:none}
.register .code{font:500 13px/1 var(--mono);color:var(--accent)}
.register h3{margin:0 0 4px;font-size:17px;font-weight:600;letter-spacing:-.01em}
.register .sub{color:var(--muted);font-size:13.5px;line-height:1.5}
.register .data{font:400 12.5px/1.6 var(--mono);color:var(--muted)}
.register .go{color:var(--dim);transition:transform .2s,color .2s}
.status{display:inline-flex;align-items:center;gap:8px;font:500 11.5px/1.3 var(--mono);color:var(--text)}
.status:before{content:"";flex:none;width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px rgba(34,211,238,.15)}
.status.rfq{color:var(--amber)}
.status.rfq:before{background:var(--amber);box-shadow:0 0 0 3px rgba(245,158,11,.15)}
.status.ref:before{background:var(--dim);box-shadow:none}
.register-note{margin-top:16px;color:var(--dim);font-size:12.5px}

/* ---------------- Process ---------------- */
.process{position:relative;display:grid;grid-template-columns:repeat(9,1fr);gap:0;counter-reset:step}
.process:before{content:"";position:absolute;left:0;right:0;top:15px;height:2px;background:linear-gradient(90deg,var(--accent),var(--accent-2) 70%,var(--line-2))}
.process li{list-style:none;position:relative;padding:44px 14px 0 0}
.process li:before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;top:0;left:0;width:32px;height:32px;display:grid;place-items:center;background:var(--bg);border:1.5px solid var(--accent);font:500 11px/1 var(--mono);color:var(--accent)}
.process h3{margin:0 0 6px;font-size:14.5px;font-weight:600;line-height:1.3}
.process p{margin:0;color:var(--muted);font-size:13px;line-height:1.55}
.process-wrap{padding:0;margin:0}

/* ---------------- Experience ---------------- */
.exp{border-top:1px solid var(--line-2)}
.exp-row{display:grid;grid-template-columns:180px minmax(0,1fr) minmax(0,.9fr);gap:36px;padding:34px 0;border-bottom:1px solid var(--line)}
.exp-row time{font:500 12.5px/1.6 var(--mono);color:var(--accent)}
.exp-row time span{display:block;color:var(--dim);font-weight:400}
.exp-row h3{margin:0 0 4px;font-size:19px;font-weight:600;letter-spacing:-.01em}
.exp-row .org{color:var(--muted);font-size:14px}
.exp-row ul{margin:0;padding:0;list-style:none}
.exp-row li{position:relative;padding-left:18px;margin:0 0 8px;color:var(--muted);font-size:14.5px;line-height:1.6}
.exp-row li:before{content:"";position:absolute;left:0;top:11px;width:8px;height:1px;background:var(--accent)}
.exp-row.current h3:after{content:"Current";margin-left:12px;padding:3px 8px;border:1px solid var(--accent);color:var(--accent);font:500 10px/1 var(--mono);vertical-align:3px}

/* ---------------- Skills ---------------- */
.skills{display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:20px}
.skill-block{border:1px solid var(--line-2);background:var(--bg-2);padding:26px}
.skill-block h3{margin:0 0 18px;font-size:16px;font-weight:600}
.tool{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.tool:last-of-type{border-bottom:0}
.tool em{font:normal 400 11.5px/1.6 var(--mono);color:var(--accent)}
.tool em.x{color:var(--dim)}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chips span{padding:6px 10px;border:1px solid var(--line-2);font-size:13px;color:var(--muted)}
.codes{display:grid;gap:16px}
.codes div{display:grid;grid-template-columns:120px 1fr;gap:12px;font-size:13.5px}
.codes b{font:500 11px/1.7 var(--mono);color:var(--dim);text-transform:uppercase;letter-spacing:.05em}
.codes span{font-family:var(--mono);font-size:12.5px;line-height:1.7;color:var(--text)}
.fine{color:var(--dim);font-size:12px;margin:18px 0 0}

/* ---------------- Resume block ---------------- */
.resume-band{display:grid;grid-template-columns:1.3fr 1fr;gap:48px;align-items:center;border:1px solid var(--line-2);padding:44px;background:linear-gradient(120deg,rgba(34,211,238,.06),transparent 55%),var(--bg-2);position:relative}
.resume-band h3{margin:0 0 12px;font-size:26px;font-weight:600;letter-spacing:-.02em}
.resume-band p{margin:0;color:var(--muted)}
.resume-band .buttons{margin-top:26px}
.edu{display:grid;gap:14px}
.edu div{padding-left:16px;border-left:2px solid var(--line-2)}
.edu b{display:block;font-weight:500}
.edu span{color:var(--muted);font-size:14px}

/* ---------------- Contact ---------------- */
.contact-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:start}
.contact-grid h2{margin:0;font-size:clamp(30px,3.6vw,46px);line-height:1.1;font-weight:600;letter-spacing:-.025em}
.contact-grid>div>p{margin:20px 0 0;color:var(--muted);max-width:52ch;font-size:17px}
.channels{border:1px solid var(--line-2)}
.channels a{display:grid;grid-template-columns:110px 1fr 20px;gap:16px;align-items:center;padding:20px 22px;border-bottom:1px solid var(--line);transition:background .2s}
.channels a:last-child{border-bottom:0}


.channels b{font-weight:500;font-size:16px;word-break:break-word}
.channels .go{color:var(--dim)}
.conf-note{margin-top:40px;color:var(--dim);font-size:12.5px;max-width:80ch}

/* ---------------- Footer ---------------- */
footer{max-width:var(--max);margin:0 auto;padding:28px 28px 48px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;color:var(--dim);font:400 12px/1.6 var(--mono)}

/* =========================================================
   Sub-page (project pages, gallery, resume) compatibility
   ========================================================= */
main>.hero{max-width:var(--max);margin:0 auto;padding:96px 28px 72px;border-bottom:1px solid var(--line)}
main>.hero:not(.hero-home){display:block}
.hero h1{font-size:clamp(38px,5vw,64px);line-height:1.04;letter-spacing:-.03em;font-weight:600;margin:18px 0 22px;max-width:20ch}
.hero h1 em,.hero h1 span{font-style:normal;color:inherit}
.hero-copy>p,.hero .lead{font-size:18px;color:var(--muted);max-width:64ch}
.lead{font-size:18px;line-height:1.7;color:var(--muted);max-width:68ch}
.tags,.hero-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:26px}
.tags span,.hero-tags span{border:1px solid var(--line-2);padding:6px 11px;color:var(--text);font:400 12px/1.4 var(--mono)}
.section-title,.section-head{display:grid;grid-template-columns:120px 1fr;gap:24px;align-items:end;margin-bottom:40px}
.section-title>span,.section-head>span{font:500 12px/1 var(--mono);color:var(--accent);padding-bottom:10px;border-bottom:1px solid var(--accent)}
.section-title h2,.section-head h2{margin:0;font-size:clamp(26px,3vw,34px);line-height:1.15;font-weight:600;letter-spacing:-.02em}
.cards{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line-2);border-left:1px solid var(--line-2)}
.cards article{padding:26px;border-right:1px solid var(--line-2);border-bottom:1px solid var(--line-2);min-height:180px}
.cards i,.cards .num{display:block;font:500 11px/1 var(--mono);font-style:normal;color:var(--accent);letter-spacing:.06em}
.cards h3{margin:16px 0 8px;font-size:17px;font-weight:600}
.cards p{margin:0;color:var(--muted);font-size:14.5px}
.two,.about-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:56px}
.two p,.about-grid p{color:var(--muted);font-size:16.5px;line-height:1.75}
.two b,.about-grid b{color:var(--text);font-weight:600}
.about-panel,.panel{border:1px solid var(--line-2);background:var(--bg-2);align-self:start}
.about-panel>div,.panel>div{padding:15px 18px;border-bottom:1px solid var(--line)}
.about-panel>div:last-child,.panel>div:last-child{border-bottom:0}
.about-panel span,.panel small,.panel span{display:block;font:500 11px/1.5 var(--mono);color:var(--dim);text-transform:uppercase;letter-spacing:.05em}
.about-panel b,.panel b{display:block;font-size:15px;font-weight:500;color:var(--text)}
.flow{display:flex;gap:8px;align-items:center;flex-wrap:wrap;color:var(--accent);font-family:var(--mono)}
.flow span{border:1px solid var(--line-2);padding:8px 11px;color:var(--text);font:400 12px/1.3 var(--mono)}
.flow i{font-style:normal;color:var(--accent)}
.btn.secondary{margin-top:32px}
.text-link{color:var(--accent);font-size:14px}
.note{display:block;color:var(--dim);margin-top:16px;font-size:12px}
.projects{border-top:1px solid var(--line-2)}
.projects a{display:grid;grid-template-columns:90px 1fr 24px;gap:20px;align-items:center;padding:20px 6px;border-bottom:1px solid var(--line)}
.projects b{color:var(--accent);font:500 12px var(--mono)}
.projects h3{margin:0 0 2px;font-size:18px}
.projects p{margin:0;color:var(--muted)}
.contact{display:flex;justify-content:space-between;gap:35px;align-items:center;border:1px solid var(--line-2);padding:32px;background:var(--bg-2)}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width:1100px){
  .nav nav a{padding:8px 7px;font-size:11px;letter-spacing:.05em}
  .process{grid-template-columns:repeat(3,1fr);row-gap:36px}
  .process:before{display:none}
  .process li{padding-top:44px;border-top:1px solid var(--line-2)}
  .process li:before{top:-16px}
  .skills{grid-template-columns:1fr 1fr}
  .skills .skill-block:last-child{grid-column:1/-1}
}
@media (max-width:960px){
  .menu{display:block}
  .nav nav{position:fixed;top:var(--nav-h);left:0;right:0;flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 24px;background:var(--bg);border-bottom:1px solid var(--line-2);box-shadow:0 24px 48px rgba(0,0,0,.6);max-height:calc(100dvh - var(--nav-h));overflow-y:auto;
    transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity 150ms var(--ease-out),transform 150ms var(--ease-out),visibility 0s 150ms}
  .nav nav.show{transform:none;opacity:1;visibility:visible;transition:opacity 220ms var(--ease-out),transform 220ms var(--ease-out)}
  .nav nav a{padding:15px 0;font-size:13px;border-bottom:1px solid var(--line)}
  .nav nav a.active:after{left:-24px;right:auto;top:14px;bottom:14px;width:2px;height:auto}
  .nav nav a.nav-cta{margin:16px 0 0;text-align:center;border:1px solid var(--line-2)}
  .hero-home{grid-template-columns:1fr;min-height:0;padding-top:56px;gap:40px}
  .datasheet{grid-template-columns:repeat(3,1fr)}
  .datasheet>div:nth-child(3){border-right:0}
  .datasheet>div:nth-child(n+4){border-top:1px solid var(--line)}
  .about,.two,.about-grid,.contact-grid,.resume-band{grid-template-columns:1fr;gap:36px}
  .disciplines,.cards{grid-template-columns:1fr 1fr}
  .register-head{display:none}
  .register a[data-cat]{grid-template-columns:80px 1fr 24px;row-gap:10px}
  .register a[data-cat] .data,.register a[data-cat] .st{grid-column:2}
  .exp-row{grid-template-columns:1fr;gap:12px}
}
@media (max-width:620px){
  .section{padding:72px 18px}
  .wrap,.metrics-strip,.hero-home,main>.hero{padding-left:18px;padding-right:18px}
  .nav{padding:0 16px}
  .brand small{display:none}
  .sec-head,.section-title,.section-head{grid-template-columns:1fr;gap:14px}
  .sec-head p{grid-column:1;margin-top:0}
  .sec-no,.section-title>span,.section-head>span{justify-self:start;padding-right:24px}
  .hero-home h1{font-size:clamp(34px,10vw,46px)}
  .hero-facts{grid-template-columns:1fr 1fr}
  .datasheet{grid-template-columns:1fr 1fr}
  .datasheet>div{border-right:1px solid var(--line)!important;border-top:1px solid var(--line)}
  .datasheet>div:nth-child(2n){border-right:0!important}
  .datasheet>div:nth-child(-n+2){border-top:0}
  .datasheet>div:last-child{grid-column:1/-1;border-right:0!important}
  .disciplines,.cards,.skills{grid-template-columns:1fr}
  .process{grid-template-columns:1fr 1fr}
  .register a[data-cat]{grid-template-columns:1fr 20px;padding:18px}
  .register a[data-cat] .code{grid-column:1}
  .register a[data-cat]>div,.register a[data-cat] .data,.register a[data-cat] .st{grid-column:1}
  .register a[data-cat] .go{grid-row:1;grid-column:2}
  .channels a{grid-template-columns:1fr 20px}
  .channels a .label{grid-column:1/-1}
  .resume-band{padding:28px}
  .contact{flex-direction:column;align-items:flex-start}
  footer{flex-direction:column}
  .ga-caption{flex-direction:column}
}
/* ---- PSA working-principle animation ---- */
.psa{border:1px solid var(--line-2);background:linear-gradient(180deg,rgba(16,26,36,.85),rgba(7,16,24,.9))}
.psa-svg{display:block;width:100%;height:auto;aspect-ratio:640/520}
.psa-svg.igc-svg{aspect-ratio:640/560}
.psa .pfr{fill:none;stroke:var(--line-2);stroke-width:1}
.psa .pp{fill:none;stroke:#3E5568;stroke-width:3;stroke-linejoin:round}
.psa .pe{fill:rgba(34,211,238,.05);stroke:var(--accent);stroke-width:1.4}
.psa .pbed{fill:url(#psaDots);stroke:none}
.psa .psat{fill:rgba(248,113,113,.26);transform:scaleY(.04);transition:transform 4.6s cubic-bezier(.4,0,.2,1)}
.psa .ptk{fill:none;stroke:#5B7184;stroke-width:.9}
.psa .ptap{fill:none;stroke:#5B7184;stroke-width:.8;stroke-dasharray:3 2}
.psa .pib{fill:var(--bg);stroke:var(--accent-2);stroke-width:1}
.psa .pit{fill:var(--text);font:500 8px var(--mono)}
.psa .pt{fill:var(--muted);font:400 9.5px var(--mono)}
.psa .ptl{fill:var(--text);font:600 10px var(--mono);letter-spacing:.06em}
.psa .pg{fill:var(--bg);stroke:var(--accent-2);stroke-width:1.1}
.psa .pn path{stroke:#F8FAFC;stroke-width:1.6;stroke-linecap:round}
.psa .pn{transform:rotate(-55deg);transition:transform 1.6s cubic-bezier(.4,0,.2,1)}
.psa .pdot{fill:#F8FAFC}
.psa .pv{fill:var(--bg);stroke:#7F95A8;stroke-width:1.2;transition:fill .35s,stroke .35s}
.psa .pv.open{fill:#34D399;stroke:#34D399}
.psa .pf{fill:none;stroke-width:3;stroke-linecap:round;stroke-dasharray:3 13;opacity:0;transition:opacity .4s;animation:flow 1.4s linear infinite}
.psa .pf.on{opacity:1}
.psa .pf.air{stroke:#E0FBFF}.psa .pf.n2{stroke:#34D399}.psa .pf.o2{stroke:#F87171}.psa .pf.eq{stroke:#A5B4FC;stroke-width:3.4}
.psa .pf.lg{stroke-dasharray:3 5;animation:none}
.psa .pcn{fill:var(--accent);font:500 11px var(--mono)}
.psa .pct{fill:var(--text);font:600 13px var(--sans)}
.psa .pcd{fill:var(--muted);font:400 10.5px var(--sans)}
.psa.paused .pf{animation-play-state:paused}
.psa-ctrl{display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;align-items:center;padding:10px 12px;border-top:1px solid var(--line-2)}
.psa-steps{display:flex;flex-wrap:wrap;gap:6px}
.psa-ctrl button{font:500 11px/1 var(--mono);color:var(--muted);background:transparent;border:1px solid var(--line-2);padding:7px 9px;cursor:pointer}

.psa-steps button[aria-pressed="true"]{color:var(--bg);background:var(--accent);border-color:var(--accent)}
.psa-play{min-width:60px}
.psa-live{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.ga-tabs{display:flex;flex-wrap:wrap;gap:0;margin-bottom:10px;border:1px solid var(--line-2);width:max-content;max-width:100%}
.ga-tabs button{font:500 11px/1 var(--mono);letter-spacing:.04em;color:var(--muted);background:transparent;border:0;padding:9px 12px;cursor:pointer}
.ga-tabs button+button{border-left:1px solid var(--line-2)}
@media(max-width:600px){.ga-tabs{width:100%}.ga-tabs button{flex:1 1 auto;padding:9px 8px;font-size:10.5px}}
.ga-tabs button[aria-selected="true"]{color:var(--bg);background:var(--accent)}
.psa-wrap{display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:start}
.psa-wrap p{color:var(--muted)}
.vid{margin:28px 0 0;border:1px solid var(--line-2);background:var(--bg-2)}.vid .frame{position:relative;aspect-ratio:16/9}.vid iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.vid figcaption{padding:12px 14px;border-top:1px solid var(--line-2);color:var(--muted);font-size:13.5px}.vid figcaption strong{color:var(--text);font-weight:600}
@media(max-width:900px){.psa-wrap{grid-template-columns:1fr}}
@media(max-width:600px){.psa .pcd{display:none}.psa-live{position:static;width:auto;height:auto;clip:auto;margin:0;padding:0 12px 12px;color:var(--muted);font-size:13.5px;line-height:1.5}}

/* ---- Integrally geared compressor animation ---- */
.psa .ip{fill:none;stroke:#3E5568;stroke-width:3;stroke-linejoin:round}
.psa .ie{fill:rgba(34,211,238,.05);stroke:var(--accent);stroke-width:1.4;transition:fill .4s,stroke-width .4s}
.psa .iv{fill:none;stroke:var(--accent);stroke-width:1.4}
.psa .ihb{fill:none;stroke:#2A3D4D;stroke-width:1}
.psa .imp path{fill:none;stroke:#E0FBFF;stroke-width:1.6;stroke-linecap:round}
.psa .ihub{fill:#E0FBFF}
.psa .imp{animation:spin 1.1s linear infinite}
.psa .imp.hl .ihb{stroke:var(--accent);stroke-width:2}
.psa .mot.hl{fill:rgba(34,211,238,.18);stroke-width:2.2}
.psa .igb{fill:rgba(16,26,36,.9);stroke:#7F95A8;stroke-width:1.2}
.psa .igear{fill:rgba(56,189,248,.1);stroke:var(--accent-2);stroke-width:1.2}
.psa .iteeth{fill:none;stroke:var(--accent-2);stroke-width:36;stroke-dasharray:1.6 3.4;opacity:.55;animation:teeth 2.8s linear infinite}
.psa .iteeth.fast{stroke-width:28;animation-duration:.45s;animation-direction:reverse}
.psa .iteeth.hl{opacity:.95}
.psa .ish{fill:none;stroke:#94A3B8;stroke-width:5;stroke-dasharray:6 3;animation:teeth .8s linear infinite}
.psa .ibr{fill:#34D399;opacity:.85}
.psa .isl{stroke:#A5B4FC;stroke-width:3}
.psa .itk{fill:none;stroke:#5B7184;stroke-width:.8}
.psa .itb{fill:none;stroke:#5B7184;stroke-width:1;stroke-dasharray:3 3}
.psa .icw{fill:none;stroke:#34D399;stroke-width:2}
.psa .it2{fill:var(--muted);font:400 9px var(--mono)}
.psa .itl{fill:var(--text);font:600 9.5px var(--mono);letter-spacing:.05em}
.psa .igv{stroke:#E0FBFF;stroke-width:2.4;stroke-linecap:round;transform:rotate(70deg);transition:transform 1.4s cubic-bezier(.4,0,.2,1)}
.psa .igvg.open .igv{transform:rotate(25deg)}
.psa .pf.hot{stroke:#F87171}.psa .pf.cool{stroke:#22D3EE}
.psa .irc{fill:none;stroke:#3E5568;stroke-width:2.4;stroke-dasharray:7 4}
.psa .ifr{fill:var(--bg);stroke:#7F95A8;stroke-width:1}
.psa .ifan path{stroke:#E0FBFF;stroke-width:1.6;stroke-linecap:round}
.psa .ifan{animation:spin .9s linear infinite}
.psa .imp.hl .ihb{stroke:var(--accent)}
.psa .ienc{fill:none;stroke:#2A3D4D;stroke-width:1;stroke-dasharray:6 4}
.psa .iex{stroke-dasharray:5 3}
.psa .iscope{fill:none;stroke:#A5B4FC;stroke-width:1.2;stroke-dasharray:8 4}
.psa .iwi{fill:#38BDF8}
.psa .pf.wi{stroke:#38BDF8;stroke-width:2.4;stroke-dasharray:2 5}
.psa .pf.warm{stroke:#FBBF24}
.psa .pf.cold{stroke:#BAE6FD}
.psa .ie.iexp,.psa .imp.iexp .ihb{stroke:#A5B4FC}
.psa .imp.iexp{animation-direction:reverse}
.psa .ifuel{fill:rgba(251,191,36,.2)}
.psa .lvl{transform:scaleY(.42);transition:transform 4.8s cubic-bezier(.4,0,.2,1)}
.psa .lvl.open{transform:scaleY(.86)}
.psa .iflt{fill:#FBBF24;transform:translateY(237px);transition:transform 4.8s cubic-bezier(.4,0,.2,1)}
.psa .iflt.open{transform:translateY(156px)}
.psa .iins{fill:none;stroke:#34D399;stroke-width:1;stroke-dasharray:3 3;opacity:.6}
.psa .ihose{fill:none;stroke:#7F95A8;stroke-width:3;stroke-dasharray:6 4}
.psa .iscr{fill:#0B1A24;stroke:var(--accent);stroke-width:1}
.psa .iread{fill:var(--accent);font:600 8.5px var(--mono)}
.psa .iveh{opacity:.18;transition:opacity .6s}
.psa .iveh.hl{opacity:1}
.psa .ivc{fill:#F87171;stroke:#F87171;stroke-width:1}
.psa .iatg{fill:#34D399}
.psa g.ie path{fill:inherit;stroke:inherit}
@keyframes teeth{to{stroke-dashoffset:-10}}
/* ---- Recognition ---- */
.awards{margin-top:56px;border-top:1px solid var(--line-2);padding-top:36px}
.awards-head{display:flex;justify-content:space-between;gap:24px;align-items:baseline;flex-wrap:wrap}
.awards-head h3{margin:0;font-size:20px;font-weight:600}
.awards-head p{margin:0;color:var(--muted);max-width:60ch;font-size:15px}
.award-stats{display:grid;grid-template-columns:1fr 1fr;gap:0;margin-top:22px;border:1px solid var(--line-2)}
.award-stats>div{display:flex;gap:18px;align-items:center;padding:18px 20px;background:var(--bg-2)}
.award-stats>div+div{border-left:1px solid var(--line-2)}
.award-stats b{font:500 30px/1 var(--mono);color:var(--accent)}
.award-stats strong{display:block;font-weight:600;font-size:15.5px}
.award-stats span{display:block;color:var(--muted);font-size:13.5px;margin-top:3px}
.award-stats em{font-style:normal;color:var(--text);font-weight:600}
.award-stats .hl{background:linear-gradient(90deg,rgba(34,211,238,.12),rgba(34,211,238,.02));box-shadow:inset 3px 0 0 var(--accent)}
.award-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}
.award-grid figure{margin:0;border:1px solid var(--line-2);background:var(--bg-2)}
.award-grid img{display:block;width:100%;height:auto;transition:opacity .2s}

.award-grid figcaption{padding:10px 12px;border-top:1px solid var(--line-2)}
.award-grid strong{display:block;font-weight:600;font-size:14px}
.award-grid span{display:block;color:var(--muted);font:400 11.5px/1.5 var(--mono)}
@media(max-width:900px){.award-grid{grid-template-columns:1fr 1fr}.award-stats{grid-template-columns:1fr}.award-stats>div+div{border-left:0;border-top:1px solid var(--line-2)}}
/* ---- WhatsApp ---- */
.wa-fab{position:fixed;right:18px;bottom:18px;z-index:60;display:flex;align-items:center;gap:8px;padding:11px 15px;background:#25D366;color:#062a17;font:600 13px/1 var(--sans);border-radius:999px;box-shadow:0 6px 22px rgba(0,0,0,.4);transition:transform .2s}

.wa-fab svg{width:18px;height:18px}
.channels a.wa b{color:#4ADE80}
@media(max-width:600px){.wa-fab{padding:13px}.wa-fab span{display:none}.wa-fab svg{width:22px;height:22px}}
@media print{.wa-fab{display:none!important}}
/* ================= CINEMATIC STAGE (hero) ================= */
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.stage{position:relative;min-height:calc(100vh - var(--nav-h));min-height:calc(100svh - var(--nav-h));overflow:hidden;isolation:isolate;display:grid;grid-template-columns:minmax(0,1fr);align-items:center;padding:0 max(28px,calc((100vw - var(--max))/2 + 28px))}
.stage-light{position:absolute;inset:-10%;z-index:-2;background:radial-gradient(ellipse 50% 60% at 72% 46%,#1c252e 0%,#0d151c 50%,var(--bg) 80%)}
.stage-portrait{position:absolute;z-index:0;margin:0;right:max(28px,calc((100vw - var(--max))/2 + 28px));top:50%;transform:translateY(-46%);width:min(380px,30vw);border:1px solid var(--line-2);background:var(--bg-2);box-shadow:0 30px 80px rgba(0,0,0,.45)}
.stage-portrait picture,.stage-portrait img{display:block;width:100%;height:auto}
.stage-portrait figcaption{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:10px 14px;border-top:1px solid var(--line-2);font:500 11px/1.3 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.stage-portrait figcaption span:first-child{color:var(--text)}
.stage-copy{position:relative;z-index:1;max-width:min(640px,calc(100% - min(380px,30vw) - 48px));padding:64px 0 96px}
.stage .who{display:flex;align-items:center;gap:12px;margin-bottom:22px;color:var(--muted)}
.stage .who b{color:var(--text);font-weight:600;letter-spacing:.14em}
.stage .who:before{content:"";width:28px;height:1px;background:var(--accent)}
.roles{margin:0;font-weight:600;text-transform:uppercase;letter-spacing:-.04em;line-height:.92;font-size:clamp(40px,5vw,78px)}
.role-mask{position:relative;display:block;height:1.86em;clip-path:inset(0 -100vw 0 -2px)}
.roles .role{position:absolute;inset:0;display:flex;flex-direction:column;transform:translateY(105%);transition:transform .9s cubic-bezier(.7,0,.2,1),opacity .9s;opacity:0}
.roles .role span{display:block;width:max-content;max-width:none;white-space:nowrap;background:linear-gradient(180deg,#F8FAFC 30%,#9AA7B4);-webkit-background-clip:text;background-clip:text;color:transparent;text-shadow:0 0 0 transparent}
.roles .role span+span{font-weight:500;opacity:.92}
.roles .role.on{transform:none;opacity:1}
.roles .role.out{transform:translateY(-105%);opacity:0}
.stage .lede{margin:26px 0 0;max-width:46ch;color:#AEB9C6;font-size:16.5px;line-height:1.7}
.stage .buttons{margin-top:30px}
.stage .hero-facts{margin-top:30px}
.stage-side{position:absolute;right:max(28px,calc((100vw - var(--max))/2 + 28px));top:34px;display:flex;flex-direction:column;align-items:flex-end;gap:12px;text-align:right}
.stage-side div{display:flex;flex-direction:column;gap:3px}
.stage-side .label{font:500 10.5px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--dim)}
.stage-side b{font-weight:500;font-size:14px;color:var(--text)}
.stage .hero-facts{grid-template-columns:repeat(3,auto)}
.stage .hero-facts b{font-family:var(--mono);font-size:13px;letter-spacing:.02em}
.stage-side .side-exp b{color:var(--accent)}
.scroll-cue{position:absolute;left:max(28px,calc((100vw - var(--max))/2 + 28px));bottom:26px;display:flex;align-items:center;gap:12px;font:500 11px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.scroll-cue i{position:relative;width:1px;height:38px;background:var(--line-2);overflow:hidden}
.scroll-cue i:after{content:"";position:absolute;left:0;top:-40%;width:1px;height:40%;background:var(--accent);animation:cue 2.2s cubic-bezier(.6,0,.3,1) infinite}
@keyframes cue{to{top:100%}}
.principles{padding-top:72px}
/* desktop: compact profile card on the right (photo + key facts) */
@media(min-width:901px){
  .stage{display:grid;grid-template-columns:minmax(0,1fr) min(300px,24vw);grid-template-rows:auto auto;column-gap:64px;row-gap:0;align-content:center;padding-top:28px;padding-bottom:56px}
  .stage-copy{grid-column:1;grid-row:1/span 2;align-self:center;max-width:680px;padding:0}
  .stage-portrait{position:static;grid-column:2;grid-row:1;align-self:end;transform:none;width:100%;box-shadow:none}
  .stage-portrait figcaption{display:none}
  .stage-side{position:static;grid-column:2;grid-row:2;align-self:start;align-items:stretch;text-align:left;gap:0;border:1px solid var(--line-2);border-top:0;background:var(--bg-2);box-shadow:0 30px 70px rgba(0,0,0,.4)}
  .stage-side div{flex-direction:row;justify-content:space-between;align-items:baseline;gap:12px;padding:11px 14px}
  .stage-side div+div{border-top:1px solid var(--line)}
  .stage-side b{font-size:13px;text-align:right}
}
@media(min-width:901px){
  .stage-copy{max-width:760px}
  .stage .lede{max-width:60ch}
  .stage .buttons{flex-wrap:wrap;gap:10px}
  .stage .buttons{flex-wrap:nowrap}
  .stage .buttons .button{padding:12px 14px;font-size:12px;letter-spacing:.05em;white-space:nowrap}
  .stage .hero-facts{margin-top:26px}
}
@media(max-height:820px){.scroll-cue{display:none}}
@media(min-width:901px) and (max-width:1180px){.stage .buttons{flex-wrap:wrap}}
@media(max-width:900px){
  .stage{display:grid;grid-template-columns:min(40%,180px) minmax(0,1fr);column-gap:16px;align-items:end;padding:0 18px}
  .stage-portrait{grid-column:1;grid-row:1;position:relative;right:auto;top:auto;transform:none;width:100%;max-width:280px;margin:28px 0 30px}
  .stage-side{display:flex;position:static;grid-column:2;grid-row:1;align-items:flex-start;text-align:left;gap:12px;margin:0 0 32px}
  .stage-side b{font-size:13px;line-height:1.35}
  .stage .hero-facts{grid-template-columns:repeat(2,auto)}
  .stage-side div{padding-left:10px;border-left:1px solid var(--line-2)}
  .stage-portrait figcaption{display:none}
  .stage-portrait{margin:22px 0 24px}
  .stage-side{margin:22px 0 24px;align-self:center}
  .stage-copy{grid-column:1/-1;grid-row:2;max-width:none;padding:0 0 84px}
  .roles{font-size:clamp(28px,8.8vw,60px)}
}

/* ================= PRELOADER ================= */
#loader{display:none}
.js:not(.seen) #loader{position:fixed;inset:0;z-index:200;display:flex;flex-direction:column;justify-content:center;gap:10px;padding:0 max(24px,8vw);background:radial-gradient(ellipse 60% 50% at 50% 50%,#141b22,#05090d 75%);color:var(--text);transition:transform 1s cubic-bezier(.8,0,.2,1),opacity .6s .5s}
#loader.done{transform:translateY(-100%);opacity:0;pointer-events:none}
.ld-name{font-weight:600;font-size:clamp(40px,8vw,120px);letter-spacing:-.04em;line-height:.95}
.ld-name b{font-weight:500;color:#7F8C99}
.ld-sub{font:500 12px/1 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.ld-num{font:500 clamp(28px,4vw,48px)/1 var(--mono);color:var(--accent);margin-top:28px}
.ld-bar{height:1px;background:var(--line-2);position:relative;overflow:hidden}
.ld-bar i{position:absolute;inset:0;background:var(--accent);transform:scaleX(0);transform-origin:left}
.ld-top{position:absolute;left:max(24px,8vw);right:max(24px,8vw);top:28px;display:flex;justify-content:space-between;font:500 11px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}
.ld-bot{top:auto;bottom:28px}

/* ================= GRAIN / REVEAL / CURSOR ================= */
body:after{content:"";position:fixed;inset:-50%;z-index:150;pointer-events:none;opacity:.055;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='2' 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)}}
.js .rv{opacity:0;transform:translateY(28px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
.js .rv.in{opacity:1;transform:none}
.cur{display:none}
@media (hover:hover) and (pointer:fine){
  .js .cur{display:block;position:fixed;left:0;top:0;z-index:190;width:30px;height:30px;margin:-15px 0 0 -15px;border:1px solid rgba(34,211,238,.6);border-radius:50%;pointer-events:none;transition:width .25s,height .25s,margin .25s,background .25s,border-color .25s;mix-blend-mode:screen}
  .js .cur.big{width:58px;height:58px;margin:-29px 0 0 -29px;background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.9)}
  .js .cur.hide{opacity:0}
}
@media print{#loader,.cur,body:after{display:none!important}.js .rv{opacity:1;transform:none}}
/* ---- Expertise <-> register interlink ---- */
.disciplines article{display:flex;flex-direction:column}
.disciplines .go{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:10px;font:500 12px/1.3 var(--mono);letter-spacing:.04em;color:var(--accent);border-top:1px solid var(--line);margin-left:0}
.disciplines .refs+.go,.disciplines .more+.go{margin-top:14px}
.disciplines .go b{font-weight:600;color:var(--text)}
.disciplines .go i{font-style:normal;transition:transform .25s}


.filter-note{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;margin:-4px 0 14px;padding:12px 16px;border:1px solid var(--line-2);border-left:3px solid var(--accent);background:rgba(34,211,238,.05)}
.filter-note[hidden]{display:none}
.filter-note b{font-weight:600}
.filter-note .cnt{font:500 12px var(--mono);color:var(--muted)}
.filter-note .back{margin-left:auto;font:500 12px var(--mono);color:var(--accent)}
.filter-note .clear{font:500 12px var(--mono);color:var(--muted);background:none;border:1px solid var(--line-2);padding:6px 10px;cursor:pointer}

.register a[data-cat].flash,.disciplines article.flash{animation:flash 1.6s ease}
@keyframes flash{0%,30%{background:rgba(34,211,238,.14)}100%{background:transparent}}
@media(max-width:600px){.filter-note .back{margin-left:0}}
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line-2);margin-bottom:28px}
.pillars article{padding:22px 22px 24px;background:var(--bg-2)}
.pillars article+article{border-left:1px solid var(--line-2)}
.pillars .num{font:500 11px/1 var(--mono);letter-spacing:.12em;color:var(--accent)}
.pillars h3{margin:12px 0 8px;font-size:18px;font-weight:600}
.pillars p{margin:0;color:var(--muted);font-size:14.5px;line-height:1.65}
@media(max-width:900px){.pillars{grid-template-columns:1fr}.pillars article+article{border-left:0;border-top:1px solid var(--line-2)}}
/* ---- skills ticker ---- */
.stage{padding-bottom:110px!important}
.ticker{position:absolute;left:0;right:0;bottom:0;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(5,10,15,.6);-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
.ticker-track{display:flex;width:max-content;animation:ticker 70s linear infinite}

.ticker-set{display:flex;align-items:center;flex-shrink:0}
.ticker span{padding:18px 26px;font:500 13px/1 var(--sans);letter-spacing:.08em;text-transform:uppercase;color:#8C9AA8;white-space:nowrap}
.ticker i{width:5px;height:5px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px rgba(34,211,238,.7);flex-shrink:0}
@keyframes ticker{to{transform:translateX(-50%)}}
@media(max-width:900px){.stage{padding-bottom:70px!important}.ticker span{padding:14px 18px;font-size:11.5px}}
@media (prefers-reduced-motion:reduce){#loader,.cur,body:after{display:none!important}.js .rv{opacity:1;transform:none}.roles .role{transition:none}}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*:before,*:after{animation:none!important;transition-property:opacity,color,background-color,border-color,fill,stroke!important;transition-duration:200ms!important}
  .button:active,.btn:active,.filters button:active,.psa-ctrl button:active,.ga-tabs button:active{transform:none!important}
  .ga .draw{stroke-dashoffset:0}
  .ga .fade{opacity:1}
}

.photo-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:28px}
.photo-card,.project-gallery figure{border-radius:0!important;border:1px solid var(--line-2)!important;background:var(--bg-2)!important}
.photo-card figcaption strong,.project-gallery strong{font-weight:600}
@media print{
  body:before{display:none}
  .nav,.skip,.menu{display:none!important}
  body{background:#fff!important;color:#0f172a!important}
  a{color:#0f172a!important}
}

.card-status{display:flex;margin-top:18px;padding-top:14px;border-top:1px solid var(--line)}
.portrait{margin:0;border-bottom:1px solid var(--line-2);background:#e9ebee}.portrait img{display:block;width:100%;height:auto;aspect-ratio:1/1;object-fit:cover;object-position:50% 30%}@media(max-width:960px){.portrait{max-width:320px}}
.mark.avatar{width:40px;height:40px;padding:2px;background:var(--bg)}.mark.avatar img{display:block;width:100%;height:100%;object-fit:cover}

.exp-photos{grid-column:2/-1;margin-top:6px}
.exp-photos-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;flex-wrap:wrap}
.exp-photos .trophy{font:500 12px/1 var(--mono);color:var(--amber);border:1px solid rgba(245,158,11,.4);padding:6px 10px}
.exp-photos-row{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}
.exp-photos figure{margin:0;border:1px solid var(--line-2);background:var(--bg-2);position:relative}
.exp-photos img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:cover}
.exp-photos figure:first-child img{object-position:50% 20%}
.exp-photos figcaption{padding:8px 10px 10px}
.exp-photos strong{display:block;font-size:13px;font-weight:600}
.exp-photos figcaption span{display:block;font-size:12px;color:var(--muted)}
.exp-photos .win{position:absolute;top:8px;left:8px;font:500 10px/1 var(--mono);font-style:normal;background:var(--amber);color:#1a1200;padding:4px 7px;text-transform:uppercase;letter-spacing:.06em}
@media(max-width:960px){.exp-photos{grid-column:1}.exp-photos-row{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:560px){.exp-photos-row{grid-template-columns:1fr 1fr}}

/* =====================================================================
   DESIGN SYSTEM v3 — "Engineering Command Center"
   Graphite + Technical Cyan, hybrid dark/light.
   Rule: page headers, engineering visualisations and contact are DARK
   (.zone-dark); documents, case studies, skills and lists are LIGHT.
   ===================================================================== */
:root{
  /* palette */
  --graphite:#0B0F14; --graphite-2:#151D27; --graphite-3:#1D2733;
  --canvas:#F3F6F9; --surface:#FFFFFF; --ink:#182431; --ink-2:#536273; --ink-3:#5F6E7E;
  --border:#DCE4EC; --border-2:#C9D4DF;
  --cyan:#38BDF8; --cyan-strong:#0369A1; /* cyan-strong = accessible cyan for text/buttons on light (AA) */
  --green:#38B48B; --on-dark:#F1F5F9; --on-dark-2:#9FB0C2;
  /* semantic tokens (light by default) */
  --bg:var(--canvas); --bg-2:var(--surface); --panel:#EBF0F5; --panel-2:#E3EAF1;
  --line:var(--border); --line-2:var(--border-2);
  --text:var(--ink); --muted:var(--ink-2); --dim:var(--ink-3);
  --accent:var(--cyan-strong); --accent-2:#0284C7; --amber:#B45309;
  /* type */
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --display:"Manrope","Inter",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  /* motion */
  --ease:cubic-bezier(.2,.7,.2,1); --t-fast:200ms; --t-med:260ms; --t-enter:500ms;
  --radius:4px;
}
.zone-dark,.psa,.ga,.pid-wrap,.pid,.aux-dg{
  --bg:var(--graphite); --bg-2:var(--graphite-2); --panel:var(--graphite-2); --panel-2:var(--graphite-3);
  --line:#223040; --line-2:#2C3C4E; --text:var(--on-dark); --muted:var(--on-dark-2); --dim:#8496A9;
  --accent:var(--cyan); --accent-2:#7DD3FC; --amber:#F59E0B;
}
.zone-dark{background:var(--graphite);color:var(--text);box-shadow:0 0 0 100vmax var(--graphite);clip-path:inset(0 -100vmax)}
body{background:var(--canvas);color:var(--text);font-family:var(--sans)}
body:before{background-image:linear-gradient(rgba(3,105,161,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(3,105,161,.045) 1px,transparent 1px)!important}
body:after{opacity:.025}
h1,h2,h3,.roles,.ld-name{font-family:var(--display)}
h2{letter-spacing:-.02em}
.sec-head h2{font-weight:700}

/* nav: compact graphite bar */
.nav{background:rgba(11,15,20,.92)!important;border-bottom:1px solid #1F2B38}
.nav .brand span{color:var(--text)}

/* dark zones get a faint cyan blueprint grid */
.zone-dark{background-image:linear-gradient(rgba(56,189,248,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.05) 1px,transparent 1px);background-size:48px 48px}

/* buttons */
.button,.btn{border-radius:var(--radius);transition:border-color var(--t-fast) var(--ease),background var(--t-fast) var(--ease),color var(--t-fast) var(--ease),transform var(--t-fast) var(--ease)}
:not(.zone-dark) > * .button,.button{background:transparent}
.button.primary,.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.zone-dark .button.primary{color:#04111A}


/* cards on light: white surface, hairline border, elevation on hover */
.cards article,.disciplines article,.pillars article,.award-grid figure,.photo-card,.project-gallery figure,.std-table,.resume-card,.about-panel>div,.spec,.channels,.exp-row,.skills>div,.skill-card{background:var(--bg-2)}
.disciplines,.pillars,.register,.award-stats{box-shadow:0 1px 2px rgba(24,36,49,.04)}
.disciplines article,.cards article,.award-grid figure{transition:box-shadow var(--t-med) var(--ease),border-color var(--t-med) var(--ease),transform var(--t-med) var(--ease)}

.award-stats .hl{background:linear-gradient(90deg,rgba(3,105,161,.09),rgba(3,105,161,.02))!important}
.filter-note{background:rgba(3,105,161,.06)!important}
.register a[data-cat].flash,.disciplines article.flash{animation:flashV3 1.4s var(--ease)}
@keyframes flashV3{0%,30%{background:rgba(56,189,248,.14)}100%{background:var(--bg-2)}}
.portrait{background:#E8EDF2}
.exp-photos .win{color:#fff}

/* status colours: green = delivered/executed, amber = RFQ only */
.card-status:before,.st .dot{background:var(--green)}

/* hero (dark) */
.stage-light{background:radial-gradient(ellipse 55% 60% at 78% 40%,rgba(56,189,248,.10),transparent 70%)!important}
.roles .role span{background:linear-gradient(180deg,#F8FAFC 30%,#9FB0C2)!important;-webkit-background-clip:text!important;background-clip:text!important;color:transparent}
.stage-portrait{background:var(--graphite-2);box-shadow:0 24px 60px rgba(0,0,0,.45)!important}
.stage-side{background:var(--graphite-2)!important;box-shadow:none!important}
.ticker{background:rgba(11,15,20,.6)!important}
.ticker span{color:#8FA2B5}
.ticker i{background:var(--cyan);box-shadow:none}

/* preloader (dark) */
.js:not(.seen) #loader{background:var(--graphite)!important;color:var(--on-dark)}
.ld-name b{color:#6E8194}

/* drawing screens */
.psa,.pid-wrap{border-radius:6px;overflow:hidden;box-shadow:0 18px 40px rgba(11,15,20,.18)}
.pid-wrap{background:var(--graphite-2)!important}
.pid-wrap .button,.pid-wrap .btn,.psa .button{background:transparent}
.aux-dg{background:var(--graphite-2);border-radius:6px}
.zone-dark .psa{box-shadow:0 0 0 1px #223040}

/* reveal motion: 14px / 500ms */
.js .rv{transform:translateY(14px)!important;transition:opacity var(--t-enter) var(--ease),transform var(--t-enter) var(--ease)!important}
.js .rv.in{transform:none!important}

/* WhatsApp */
.wa-fab{box-shadow:0 8px 22px rgba(11,15,20,.25)}
.channels a.wa b{color:var(--green)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

/* metrics strip: 5 cells */
/* workflow ownership tags */
.own{display:inline-block;font:500 10px/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;padding:4px 6px;border-radius:3px;margin-bottom:8px}
.own-o{background:rgba(3,105,161,.10);color:var(--cyan-strong)}
.own-c{background:rgba(83,98,115,.10);color:var(--ink-2)}
.own-s{background:rgba(56,180,139,.12);color:#1E7A5C}
.own-key{display:flex;flex-wrap:wrap;gap:8px 10px;align-items:center;margin:0 0 22px}
.own-key .own{margin:0}
.own-key .fine{margin:0 0 0 6px}
.process li .own{position:relative;z-index:1}
/* register search */
.reg-tools{margin:0 0 12px}
.reg-search{display:flex;align-items:center;gap:10px;max-width:560px;padding:0 14px;border:1px solid var(--line-2);border-radius:var(--radius);background:var(--surface);transition:border-color var(--t-fast)}
.reg-search:focus-within{border-color:var(--cyan-strong);box-shadow:0 0 0 3px rgba(56,189,248,.18)}
.reg-search svg{width:16px;height:16px;fill:none;stroke:var(--ink-3);stroke-width:1.6;flex-shrink:0}
.reg-search input{flex:1;min-width:0;border:0;background:transparent;padding:12px 0;font:400 14.5px var(--sans);color:var(--ink);outline:none}
.reg-empty{margin:0;padding:28px;border:1px dashed var(--line-2);border-radius:var(--radius);text-align:center;color:var(--muted);background:var(--surface)}
.reg-empty[hidden]{display:none}
.reg-empty button{margin-left:8px;font:500 13px var(--sans);color:var(--cyan-strong);background:none;border:0;text-decoration:underline;cursor:pointer}
.register a[data-cat]{transition:background var(--t-fast) var(--ease)}

/* drawing step nav */
.psa-nav{display:flex;gap:6px;margin-left:auto}
.psa-nav button{min-width:36px}
.psa-ctrl{gap:8px}
.register{background:var(--surface)}
.register.is-empty{display:none}

/* case-study footer navigation */
.pnav-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:14px}
.pnav-head a{font:500 13px var(--sans);color:var(--accent)}
.pnav-pn{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.pnav-pn a,.pnav-rel a{display:flex;flex-direction:column;gap:4px;padding:18px 20px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);transition:border-color var(--t-med) var(--ease),box-shadow var(--t-med) var(--ease),transform var(--t-med) var(--ease)}

.pnav-pn .next{text-align:right;align-items:flex-end}
.pnav .code{font:500 12px var(--mono);color:var(--accent)}
.pnav b{font:600 16px/1.35 var(--display);color:var(--text)}
.pnav-rel{margin-top:22px}
.pnav-rel>div{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:10px}
.pnav-rel a span:last-child{font-size:13px;color:var(--muted);line-height:1.45}
@media(max-width:760px){.pnav-pn,.pnav-rel>div{grid-template-columns:1fr}.pnav-pn .next{text-align:left;align-items:flex-start}}
.nav.zone-dark{clip-path:none;box-shadow:none}
@media print{:root{--sans:"IBM Plex Sans",Arial,sans-serif;--display:"IBM Plex Sans",Arial,sans-serif}}
@media print{.zone-dark{background:none!important;box-shadow:none!important;clip-path:none!important;--bg:#fff;--bg-2:#fff;--text:#111;--muted:#333;--dim:#555;--line:#ddd;--line-2:#ccc;--accent:#0369A1;color:#111}}
@media(min-width:600px) and (max-width:900px){.stage{grid-template-columns:200px minmax(0,340px)!important}}

/* =====================================================================
   INTERACTION POLISH — applied from Emil Kowalski's design-engineering
   skills (emilkowalski/skills: emil-design-eng, review-animations,
   mobile-native, break-ui)
   ===================================================================== */
:root{
  --ease-out:cubic-bezier(0.23,1,0.32,1);      /* enter/exit, UI feedback */
  --ease-in-out:cubic-bezier(0.77,0,0.175,1);  /* on-screen movement */
  --ease:var(--ease-out);
}
/* mobile baseline */
html{-webkit-tap-highlight-color:transparent;-webkit-text-size-adjust:100%}
a,button,[role="tab"],summary{touch-action:manipulation}
button,.button,.btn,.filters button,.psa-ctrl button,.ga-tabs button,.menu{-webkit-user-select:none;user-select:none}
.reg-search input{font-size:16px}  /* <16px makes iOS zoom into the field */
.wa-fab{bottom:calc(18px + env(safe-area-inset-bottom));right:calc(18px + env(safe-area-inset-right))}

/* press feedback on every pressable: scale(0.97), 160ms strong ease-out */
.button,.btn,.filters button,.psa-ctrl button,.ga-tabs button,.menu,.wa-fab,.reg-empty button,.filter-note .clear{transition-property:transform,background-color,border-color,color,box-shadow,filter;transition-duration:160ms;transition-timing-function:var(--ease-out)}
.button:active,.btn:active,.filters button:active,.psa-ctrl button:active,.ga-tabs button:active,.menu:active,.wa-fab:active,.reg-empty button:active,.filter-note .clear:active{transform:scale(0.97)}
.register a[data-cat]:active,.pnav-pn a:active,.pnav-rel a:active,.disciplines .go:active{transform:scale(0.99)}

/* motion curves: on-screen movement uses ease-in-out; reveals use strong ease-out */
.roles .role{transition:transform 700ms var(--ease-in-out),opacity 700ms var(--ease-in-out)!important}
.js .rv{transition:opacity 400ms var(--ease-out),transform 400ms var(--ease-out)!important}
.pnav-pn a,.pnav-rel a,.disciplines article,.cards article,.award-grid figure{transition:box-shadow 200ms var(--ease),border-color 200ms var(--ease),transform 200ms var(--ease-out)}
#loader{transition:transform 700ms var(--ease-in-out),opacity 300ms var(--ease-out) 400ms!important}

/* hover effects only on devices that can really hover (no sticky hover after a tap) */
@media (hover:hover) and (pointer:fine){
  .register a[data-cat]:hover .go{color:var(--accent);transform:translate(2px,-2px)}
  .wa-fab:hover{transform:translateY(-2px)}
  .disciplines .go:hover i{transform:translateX(4px)}
  .button.primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
  .disciplines article:hover,.cards article:hover,.award-grid figure:hover{box-shadow:0 10px 28px rgba(24,36,49,.09);position:relative;z-index:1}
  .pnav-pn a:hover,.pnav-rel a:hover{border-color:var(--cyan-strong);box-shadow:0 10px 26px rgba(24,36,49,.08);transform:translateY(-2px)}
  .nav nav a:hover{color:var(--text)}
  .nav nav a.nav-cta:hover{border-color:var(--accent)}
  .button:hover,.btn:hover{border-color:var(--accent);color:var(--accent)}
  .button.primary:hover,.btn.primary:hover{background:#67E8F9;border-color:#67E8F9;color:#03141A}
  .button.ghost:hover{color:var(--accent)}
  .disciplines article:hover{background:rgba(34,211,238,.035)}
  .disciplines a.more:hover{text-decoration:underline;text-underline-offset:4px}
  .filters button:hover{color:var(--text)}
  .register a[data-cat]:hover{background:rgba(34,211,238,.04)}
  .channels a:hover{background:rgba(34,211,238,.05)}
  .channels a:hover .go{color:var(--accent)}
  .psa-ctrl button:hover{color:var(--text);border-color:var(--accent)}
  .award-grid a:hover img{opacity:.85}
  .disciplines article:has(.go:hover){background:rgba(34,211,238,.04)}
  .filter-note .clear:hover{color:var(--text);border-color:var(--accent)}
  .ticker:hover .ticker-track{animation-play-state:paused}
  .register a[data-cat]:hover{background:#F7FAFC}
}
/* press beats hover (declared last) */
.button:active,.btn:active,.button.primary:active,.filters button:active,.psa-ctrl button:active,.ga-tabs button:active,.menu:active,.wa-fab:active,.reg-empty button:active,.filter-note .clear:active{transform:scale(0.97)}
.pnav-pn a:active,.pnav-rel a:active,.register a[data-cat]:active{transform:scale(0.99)}
@media (prefers-reduced-motion:reduce){.button:active,.btn:active,.button.primary:active,.filters button:active,.psa-ctrl button:active,.ga-tabs button:active,.menu:active,.wa-fab:active,.pnav-pn a:active,.pnav-rel a:active,.register a[data-cat]:active{transform:none}}

/* series walk-through bar (case studies opened from an expertise card) */
.series-bar{position:sticky;top:var(--nav-h);z-index:40;background:var(--graphite-2);border-bottom:1px solid #223040;box-shadow:0 0 0 100vmax var(--graphite-2);clip-path:inset(0 -100vmax);color:var(--on-dark)}
.sb-in{display:flex;align-items:center;gap:18px;max-width:var(--max);margin:0 auto;padding:10px 0}
.sb-t{display:flex;flex-direction:column;gap:2px;min-width:0}
.sb-t .label{color:#8496A9;font:500 10.5px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sb-t b{font:600 14px/1.2 var(--sans)}
.sb-dots{display:flex;gap:6px;flex-wrap:wrap}
.sb-dots a{font:500 11px/1 var(--mono);color:#9FB0C2;padding:6px 8px;border:1px solid #2C3C4E;border-radius:3px}
.sb-dots a.on{background:var(--cyan);border-color:var(--cyan);color:#04111A}
.sb-nav{display:flex;gap:8px;margin-left:auto}
.sb-btn{font:600 12px/1 var(--sans);letter-spacing:.04em;text-transform:uppercase;padding:10px 12px;border:1px solid #2C3C4E;border-radius:4px;color:var(--on-dark);white-space:nowrap;transition:transform 160ms var(--ease-out),background-color 160ms var(--ease-out),border-color 160ms var(--ease-out)}
.sb-btn.primary{background:var(--cyan);border-color:var(--cyan);color:#04111A}
.sb-btn:active,.sb-dots a:active{transform:scale(0.97)}
@media (hover:hover) and (pointer:fine){.sb-btn:hover,.sb-dots a:hover{border-color:var(--cyan)}.sb-btn.primary:hover{filter:brightness(1.08)}}
@media(max-width:760px){.sb-in{flex-wrap:wrap;gap:8px 12px;padding:8px 0}.sb-dots{order:3;width:100%}.sb-dots a{padding:5px 7px}.sb-btn{padding:9px 10px;font-size:11.5px}}
.sb-in{padding-left:28px;padding-right:28px}@media(max-width:760px){.sb-in{padding-left:18px;padding-right:18px}}

/* ===== v4 · register thumbnails ===== */
.register-head,.register a[data-cat]{grid-template-columns:132px minmax(0,2.2fr) minmax(0,1.5fr) minmax(0,1.2fr) 28px}
.register .code{display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.rthumb{display:block;width:120px;aspect-ratio:4/3;border:1px solid var(--border);border-radius:6px;overflow:hidden;background:#E9EEF3}
.rthumb img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease-out)}
.rthumb.icon{display:grid;place-items:center;background:var(--graphite-2);border-color:var(--graphite-2)}
.rthumb.icon svg{width:58%;fill:none;stroke:var(--cyan);stroke-width:1.4}
@media (hover:hover) and (pointer:fine){.register a[data-cat]:hover .rthumb img{transform:scale(1.05)}}
@media (max-width:960px){
  .register a[data-cat]{grid-template-columns:112px 1fr 24px}
  .register a[data-cat] .code{grid-column:1;grid-row:1/span 3;align-self:start}
  .rthumb{width:104px}
}
@media (max-width:620px){
  .register a[data-cat]{grid-template-columns:88px 1fr 20px;column-gap:14px;align-items:start;padding:16px}
  .register a[data-cat] .code{grid-column:1;grid-row:1/span 3;gap:6px}
  .register a[data-cat]>div,.register a[data-cat] .data,.register a[data-cat] .st{grid-column:2}
  .register a[data-cat] .go{grid-column:3;grid-row:1}
  .rthumb{width:88px;border-radius:5px}
  .register .ctext{font-size:11.5px}
}

/* ===== v4 · shorter mobile page ===== */
.swipe-hint{display:none}
.exp-more{display:none}
.to-top{position:fixed;left:18px;bottom:calc(18px + env(safe-area-inset-bottom));z-index:60;width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:var(--graphite-2);color:#fff;border:1px solid rgba(255,255,255,.14);box-shadow:0 6px 22px rgba(0,0,0,.35);opacity:0;transform:translateY(8px);pointer-events:none;transition:opacity .2s ease,transform .25s var(--ease-out)}
.to-top.show{opacity:1;transform:none;pointer-events:auto}
.to-top svg{width:18px;height:18px}
.to-top:active{transform:scale(.94)}
@media print{.to-top{display:none}}
@media (max-width:620px){
  .spec .portrait{display:none}
  .swipe-hint{display:block;margin:-4px 0 10px;text-align:right;font:500 11px/1 var(--mono);letter-spacing:.06em;color:var(--ink-3)}
  .disciplines,.pillars{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:12px;padding-bottom:10px;scrollbar-width:none;-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain}
  .disciplines::-webkit-scrollbar,.pillars::-webkit-scrollbar{display:none}
  .disciplines>article,.pillars>article{flex:0 0 86%;scroll-snap-align:start;border:1px solid var(--border)}
  .process-wrap{display:grid;grid-template-columns:1fr 1fr;gap:8px}
  .process-wrap li{padding:12px;margin:0}
  .process-wrap li p{font-size:12.5px;line-height:1.45}
  .js .exp:not(.open) .exp-row:nth-child(n+3){display:none}
  .exp-more{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;margin:14px 0 6px;padding:13px 16px;background:var(--surface,#fff);border:1px solid var(--border);border-radius:8px;font:600 14px/1 var(--sans);color:var(--ink);cursor:pointer;transition:transform .16s var(--ease-out)}
  .exp-more:active{transform:scale(.97)}
}

/* ===== v4 · interactive workflow ===== */
.wf{margin-top:6px}
.wf-rail{position:relative;display:grid;grid-template-columns:repeat(9,minmax(0,1fr));padding:4px 0 2px}
.wf-node{position:relative;display:flex;flex-direction:column;align-items:center;gap:10px;padding:4px 4px 6px;background:none;border:0;font:inherit;color:var(--ink-2);cursor:pointer;-webkit-tap-highlight-color:transparent}
.wf-node::before{content:"";position:absolute;top:22px;right:50%;width:100%;height:2px;background:var(--border);transition:background-color .35s ease}
.wf-node:first-child::before{display:none}
.wf-node.done::before,.wf-node[aria-selected=true]::before{background:var(--cyan-strong)}
.wf-dot{position:relative;z-index:1;width:36px;height:36px;display:grid;place-items:center;border-radius:50%;background:var(--surface,#fff);border:1.5px solid var(--border);font:500 11px/1 var(--mono);color:var(--ink-3);transition:background-color .25s ease,border-color .25s ease,color .25s ease,transform .25s var(--ease-out),box-shadow .25s ease}
.wf-node.done .wf-dot{border-color:var(--cyan-strong);color:var(--cyan-strong)}
.wf-node[aria-selected=true] .wf-dot{background:var(--cyan-strong);border-color:var(--cyan-strong);color:#fff;transform:scale(1.12);box-shadow:0 0 0 6px rgba(3,105,161,.12)}
.wf-name{font-size:12.5px;font-weight:600;line-height:1.25;text-align:center;color:var(--ink-2);transition:color .2s ease}
.wf-node[aria-selected=true] .wf-name{color:var(--ink)}
.wf-node:focus-visible{outline:none}
.wf-node:focus-visible .wf-dot{outline:2px solid var(--cyan-strong);outline-offset:3px}
@media (hover:hover) and (pointer:fine){.wf-node:hover .wf-dot{border-color:var(--cyan-strong);color:var(--cyan-strong)}.wf-node[aria-selected=true]:hover .wf-dot{color:#fff}}
.wf.playing .wf-node[aria-selected=true]::before{background:repeating-linear-gradient(90deg,var(--cyan-strong) 0 6px,transparent 6px 11px);background-size:11px 2px;animation:wfFlow .6s linear infinite}
@keyframes wfFlow{to{background-position:11px 0}}
.wf-panels{margin-top:22px}
.wf-panel{position:relative;overflow:hidden;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);grid-template-areas:"top facts" "h facts" "lead facts" "ex facts" "sm sm";align-content:start;gap:8px 44px;padding:26px 28px;margin-bottom:14px;background:var(--surface,#fff);border:1px solid var(--border);border-radius:10px;box-shadow:0 1px 2px rgba(24,36,49,.04)}
.js .wf-panel{display:none;margin-bottom:0}
.js .wf-panel.on{display:grid;animation:wfIn .28s var(--ease-out)}
@keyframes wfIn{from{opacity:0;transform:translateY(8px)}}
.wf-top{grid-area:top;display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.wf-top .own{margin:0}
.wf-step{font:500 11px/1 var(--mono);letter-spacing:.06em;color:var(--ink-3)}
.wf-panel h3{grid-area:h;margin:6px 0 0;font-size:24px;font-weight:600;letter-spacing:-.015em}
.wf-lead{grid-area:lead;margin:0;color:var(--ink-2);font-size:15.5px;line-height:1.55}
.wf-facts{grid-area:facts;margin:0;display:grid;gap:16px;align-content:start;padding-left:28px;border-left:1px solid var(--border)}
.wf-facts dt{font:500 10.5px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.wf-facts dd{margin:6px 0 0;color:var(--ink);font-size:14.5px;line-height:1.55}
.wf-ex{grid-area:ex;align-self:end;display:grid;grid-template-columns:1fr auto;gap:4px 12px;margin-top:14px;padding:12px 14px;background:var(--canvas);border:1px solid var(--border);border-radius:8px;color:var(--ink);font-size:13.5px;line-height:1.45;text-decoration:none;transition:border-color .2s ease}
.wf-ex .label{grid-column:1/-1;font:500 10px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--cyan-strong)}
.wf-ex .arr{align-self:center;color:var(--cyan-strong);transition:transform .2s var(--ease-out)}
@media (hover:hover) and (pointer:fine){.wf-ex:hover{border-color:var(--cyan-strong)}.wf-ex:hover .arr{transform:translateX(3px)}}
.wf.tick .wf-panel.on::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--cyan-strong);transform-origin:left;animation:wfTick var(--wf-dur,8s) linear forwards}
@keyframes wfTick{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.wf-ctrl{display:none}
.js .wf-ctrl{display:flex;justify-content:center;gap:10px;margin-top:16px}
.wf-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:42px;min-width:42px;padding:0 16px;background:var(--surface,#fff);border:1px solid var(--border);border-radius:999px;font:600 13px/1 var(--sans);color:var(--ink);cursor:pointer;touch-action:manipulation;transition:transform .16s var(--ease-out),border-color .2s ease,background-color .2s ease,color .2s ease}
.wf-btn:active{transform:scale(.97)}
.wf-play[aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:#fff}
.wf-play .ic{font-size:10px}
@media (hover:hover) and (pointer:fine){.wf-btn:hover{border-color:var(--cyan-strong)}}
@media (max-width:960px){
  .wf-panel{grid-template-columns:1fr;grid-template-areas:"top" "h" "lead" "facts" "ex" "sm";gap:8px}
  .wf-facts{padding:14px 0 0;margin-top:6px;border-left:0;border-top:1px solid var(--border);gap:12px}
}
@media (max-width:760px){
  .wf-rail{display:flex;overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:none;margin:0 -4px;padding:4px 4px 2px}
  .wf-rail::-webkit-scrollbar{display:none}
  .wf-node{flex:0 0 84px;scroll-snap-align:center}
  .wf-name{font-size:12px}
  .wf-panel{padding:20px 18px}
  .wf-panel h3{font-size:21px}
  .wf-lead{font-size:15px}
}
@media (prefers-reduced-motion:reduce){.js .wf-panel.on{animation:none}.wf.playing .wf-node[aria-selected=true]::before{animation:none}}

/* ===== v4 · register category groups ===== */
.reg-group{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:14px 22px 10px;background:var(--canvas);border-bottom:1px solid var(--border);font:600 12px/1.2 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--cyan-strong)}
.register-head+.reg-group{border-top:0}
.reg-group:not(:first-child){border-top:1px solid var(--border)}
.reg-group .n{font-weight:500;letter-spacing:.04em;text-transform:none;color:var(--ink-3)}
.reg-group[hidden]{display:none}
@media (max-width:620px){.reg-group{padding:12px 16px 9px;font-size:11.5px}}

.wf-count{display:inline-flex;align-items:center;min-width:72px;justify-content:center;font:500 12px/1 var(--mono);letter-spacing:.06em;color:var(--ink-3)}
.wf-count b{color:var(--ink);font-weight:600;margin-right:4px}
.wf-ctrl{align-items:center}

/* show title under name in the mobile header */
@media (max-width:620px){.brand small{display:block;margin-top:3px;font-size:10.5px;color:#9FB0C2;letter-spacing:.01em}}

/* ===== v4 · metrics with mini visuals ===== */
.datasheet>div{display:flex;flex-direction:column}
.datasheet .viz{margin-top:14px;min-height:46px}
.ds-link{position:absolute;inset:0;z-index:1}
.ds-link:focus-visible{outline:2px solid var(--cyan);outline-offset:-2px}
.datasheet>div:has(.ds-link)::after{content:"↗";position:absolute;right:14px;bottom:12px;font:500 12px/1 var(--mono);color:var(--ink-3);transition:color .2s ease,transform .2s var(--ease-out)}
@media (hover:hover) and (pointer:fine){.datasheet>div:has(.ds-link):hover{background:rgba(56,189,248,.05)}.datasheet>div:has(.ds-link):hover::after{color:var(--cyan);transform:translate(2px,-2px)}}
.datasheet .tl-ax{display:flex;justify-content:space-between;margin-top:7px;font:400 10px/1 var(--mono);color:var(--ink-3);letter-spacing:.02em}
/* experience timeline */
.tl-bar{display:flex;gap:3px;height:10px}
.tl-bar i{flex:var(--g) 1 0;border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .7s var(--ease-out) var(--d)}
.tl-bar .t-a{background:#3B4A5A}.tl-bar .t-b{background:var(--cyan)}.tl-bar .t-c{background:var(--green)}
/* tanks */
.tk-grid{display:grid;grid-template-columns:repeat(13,1fr);gap:4px}
.tk-grid i{display:block;height:9px;border:1px solid #3B6A88;border-radius:5px;background:linear-gradient(to top,var(--cyan) 0 60%,transparent 60%) no-repeat;background-size:100% 0;background-position:bottom;opacity:.35;transition:background-size .5s var(--ease-out) var(--d),opacity .3s ease var(--d)}
/* compressors */
.kimps{display:flex;justify-content:space-between;gap:4px}
.kimp{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;gap:5px;text-decoration:none;opacity:0;transform:translateY(6px);transition:opacity .4s ease var(--d),transform .5s var(--ease-out) var(--d)}
.kimp svg{width:30px;height:30px;fill:none;stroke:var(--cyan);stroke-width:1.3}
.kimp .hub{fill:var(--cyan);stroke:none}
.kimp .rot{transform-origin:12px 12px;animation:impSpin 5s linear infinite;animation-play-state:paused}
.kimp:nth-child(2n) .rot{animation-duration:6.5s}
.kimp span{font:500 9.5px/1 var(--mono);color:var(--ink-3);letter-spacing:.02em;transition:color .2s ease}
@keyframes impSpin{to{transform:rotate(360deg)}}
@media (hover:hover) and (pointer:fine){.kimp:hover span{color:var(--cyan)}.kimp:hover .rot{animation-duration:1.2s}}
/* PSA gauge */
.gauge{position:relative;display:flex;align-items:flex-end;gap:10px}
.gauge svg{width:112px;height:auto;overflow:visible}
.gauge .g-bg,.gauge .g-fg{fill:none;stroke-width:7;stroke-linecap:round}
.gauge .g-bg{stroke:#24313F}
.gauge .g-fg{stroke:var(--cyan);stroke-dasharray:100;stroke-dashoffset:100;transition:stroke-dashoffset 1.2s var(--ease-out) .1s}
.gauge .g-needle{transform-origin:60px 60px;transform:rotate(-90deg);transition:transform 1.2s var(--ease-out) .1s}
.gauge .g-needle path{stroke:#E6EEF5;stroke-width:2;stroke-linecap:round}
.gauge .g-needle circle{fill:#E6EEF5}
.gauge .g-t{font:400 8px var(--mono);fill:var(--ink-3)}
.gauge .g-pur{font:500 10.5px/1.2 var(--mono);color:var(--green);padding-bottom:4px}
/* team */
.team{display:flex;align-items:flex-end;gap:6px}
.team svg{width:18px;height:22px;fill:none;stroke:#3B6A88;stroke-width:1.5;transition:stroke .3s ease var(--d),transform .4s var(--ease-out) var(--d)}
.team .stars{margin-left:8px;display:flex;gap:2px;font-size:14px;line-height:1;color:#F5C451;opacity:0;transform:scale(.6);transition:opacity .3s ease .8s,transform .5s var(--ease-out) .8s}
/* in-view state */
.metrics-strip.in .tl-bar i{transform:scaleX(1)}
.metrics-strip.in .tk-grid i{background-size:100% 100%;opacity:1}
.metrics-strip.in .kimp{opacity:1;transform:none}
.metrics-strip.in .kimp .rot{animation-play-state:running}
.metrics-strip.in .gauge .g-fg{stroke-dashoffset:20}
.metrics-strip.in .gauge .g-needle{transform:rotate(54deg)}
.metrics-strip.in .team svg{stroke:var(--cyan);transform:translateY(-2px)}
.metrics-strip.in .team .stars{opacity:1;transform:none}
.no-js .metrics-strip .viz *{transition:none}
@media (prefers-reduced-motion:reduce){
  .metrics-strip .viz *{transition:none!important}
  .kimp .rot{animation:none!important}
}
@media (max-width:620px){
  .datasheet .viz{margin-top:12px}
  .kimps{justify-content:flex-start;gap:12px;flex-wrap:wrap}
  .gauge svg{width:96px}
}

/* ===== v5 · compact spacing (whole site) ===== */
main > .section{padding-top:72px;padding-bottom:72px}
.sec-head{margin-bottom:32px}
.sec-head h2{font-size:clamp(26px,3vw,34px)}
.sec-head p{margin-top:10px}
.spec .portrait{display:none}
.about-copy p{font-size:16.5px;line-height:1.7;margin-bottom:16px}
.about-copy p:first-child{font-size:19px;line-height:1.55}
.disciplines article{padding:22px 22px 24px;min-height:0}
.disciplines .sym{margin-bottom:16px}
.disciplines p{font-size:14px;line-height:1.6}
.disciplines .refs{padding-top:14px}
.register-head,.register a[data-cat]{grid-template-columns:112px minmax(0,2.2fr) minmax(0,1.5fr) minmax(0,1.2fr) 28px}
.register a[data-cat]{padding-top:14px;padding-bottom:14px}
.rthumb{width:100px}
.reg-group{padding-top:12px;padding-bottom:8px}
.pillars{margin-bottom:20px}
.pillars article{padding:18px 20px}
.pillars h3{margin:10px 0 6px;font-size:17px}
.pillars p{font-size:14px;line-height:1.6}
.wf-panels{margin-top:16px}
.wf-panel{padding:22px 24px}
.exp-row{padding:24px 0;gap:28px}
.exp-row li{margin-bottom:6px;font-size:14px;line-height:1.55}
.awards{margin-top:36px;padding-top:28px}
.award-grid{margin-top:14px}
.award-grid figcaption{padding:8px 10px}
.skills{gap:14px}
.skill-block{padding:20px}
.skill-block h3{margin-bottom:12px}
.tool{padding:8px 0;font-size:14px}
.resume-band{padding:32px;gap:32px}
.resume-band .buttons{margin-top:18px}
.contact-grid{gap:40px}
.contact-grid h2{font-size:clamp(26px,3vw,38px)}
.contact-grid>div>p{font-size:16px;margin-top:14px}
.channels a{padding:15px 20px}
@media (max-width:960px){.register a[data-cat]{grid-template-columns:96px 1fr 24px}.rthumb{width:90px}}
@media (max-width:620px){
  main > .section{padding-top:48px;padding-bottom:48px}
  .stage{padding-bottom:36px}
  .sec-head{margin-bottom:20px;gap:10px}
  .sec-head h2{font-size:26px}
  .about-copy p{font-size:15.5px;line-height:1.65;margin-bottom:14px}
  .about-copy p:first-child{font-size:17.5px}
  .register a[data-cat]{grid-template-columns:76px 1fr 18px;padding:12px 14px;row-gap:6px}
  .rthumb{width:76px}
  .register h3{font-size:16px}
  .register .sub{font-size:13px;line-height:1.45}
  .register .data{font-size:11.5px;line-height:1.5}
  .exp-row{padding:18px 0;gap:8px}
  .awards{margin-top:28px;padding-top:22px}
  .award-grid{grid-template-columns:1fr 1fr;gap:10px}
  .award-grid strong{font-size:13px}
  .awards-head p{font-size:14px}
  .skill-block{padding:16px}
  .chips span{padding:5px 8px;font-size:12px}
  .resume-band{padding:20px;gap:20px}
  .resume-band h3{font-size:21px}
  .edu{gap:10px}
  .contact-grid{gap:22px}
  .contact-grid h2{font-size:24px}
  .contact-grid>div>p{font-size:15px}
  .channels a{padding:13px 16px}
  .wf-panel{padding:18px 16px}
}
@media (min-width:961px){#principles figure{max-width:920px;margin:0 auto!important}}

/* ===== v6 · numbers as a bento grid ===== */
.bento{--bn-ind:#A5B4FC;--bn-ind-2:#818CF8;--bn-teal:#2DD4BF;--bn-teal-l:#5EEAD4;--bn-gold:#FBBF24;--bn-txt:#F8FAFC;--bn-mut:#94A3B8;
  display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px}
.bn{position:relative;overflow:hidden;display:flex;flex-direction:column;border-radius:16px;padding:18px 18px 16px;color:var(--bn-txt);text-decoration:none;
  background:radial-gradient(100% 80% at 100% 0%,var(--glow,rgba(129,140,248,.22)),transparent 60%),#111827;border:1px solid rgba(255,255,255,.08);
  transition:border-color .25s ease,transform .2s var(--ease-out)}
.bn-exp{grid-column:span 3}.bn-k{grid-column:span 3}.bn-tk,.bn-psa,.bn-team{grid-column:span 2}
.bn-tk,.bn-psa{--glow:rgba(45,212,191,.2)}.bn-team{--glow:rgba(251,191,36,.14)}
a.bn:active{transform:scale(.985)}
@media (hover:hover) and (pointer:fine){a.bn:hover{border-color:rgba(165,180,252,.45)}a.bn:hover .bn-go{color:var(--bn-txt);transform:translate(2px,-2px)}}
.bn:focus-visible{outline:2px solid var(--bn-ind);outline-offset:2px}
.bn-lab{font:500 10.5px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--bn-ind)}
.bn-lab.t{color:var(--bn-teal-l)}.bn-lab.g{color:#FDE68A}
.bn-row{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;flex-wrap:wrap}
.bn-val{display:flex;align-items:baseline;margin-top:8px;font:600 40px/1 var(--display,Manrope),Inter,sans-serif;letter-spacing:-.035em;color:var(--bn-txt);font-variant-numeric:tabular-nums}
.bn-val small{margin-left:8px;font:400 12.5px/1 var(--mono);letter-spacing:0;color:var(--bn-mut)}
.bn-meta{font:400 11px/1 var(--mono);color:var(--bn-mut);padding-bottom:4px}
.bn-note{margin:12px 0 0;font-size:13px;line-height:1.45;color:var(--bn-mut);padding-right:18px}
.bn-go{position:absolute;right:14px;bottom:12px;font:500 12px/1 var(--mono);color:#64748B;transition:color .2s ease,transform .2s var(--ease-out)}
.bn-walk{position:relative;z-index:2;font:500 12px/1 var(--mono);color:var(--bn-ind);text-decoration:none;padding:7px 10px;border:1px solid rgba(165,180,252,.3);border-radius:999px;margin-bottom:2px}
@media (hover:hover) and (pointer:fine){.bn-walk:hover{border-color:var(--bn-ind);color:#fff}}
/* timeline */
.bn-tl{display:flex;gap:4px;height:10px;margin-top:16px}
.bn-tl i{flex:var(--g) 1 0;border-radius:5px;transform:scaleX(0);transform-origin:left;transition:transform .8s var(--ease-out) var(--d)}
.bn-tl .a{background:#334155}.bn-tl .b{background:linear-gradient(90deg,var(--bn-ind-2),var(--bn-ind))}.bn-tl .c{background:var(--bn-teal)}
.bn-tl-lab{display:flex;gap:4px;margin-top:7px;font:400 10.5px/1.3 var(--mono);color:var(--bn-mut)}
.bn-tl-lab span{flex:var(--g) 1 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.bn-tl-lab span:last-child{text-align:right}
/* compressors */
.bn-imps{display:flex;gap:14px;flex-wrap:wrap;margin-top:14px}
.bn-imp{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;gap:5px;text-decoration:none;opacity:0;transform:translateY(6px);transition:opacity .4s ease var(--d),transform .5s var(--ease-out) var(--d)}
.bn-imp svg{width:34px;height:34px;fill:none;stroke:var(--bn-ind);stroke-width:1.3}
.bn-imp .hub{fill:var(--bn-ind);stroke:none}
.bn-imp .rot{transform-origin:12px 12px;animation:impSpin 5s linear infinite;animation-play-state:paused}
.bn-imp:nth-child(2n) .rot{animation-duration:6.5s}
.bn-imp span{font:500 10px/1 var(--mono);color:var(--bn-mut);transition:color .2s ease}
@media (hover:hover) and (pointer:fine){.bn-imp:hover span{color:#fff}.bn-imp:hover .rot{animation-duration:1.2s}}
/* tanks */
.bn-tanks{display:grid;grid-template-columns:repeat(9,1fr);gap:5px;margin-top:14px}
.bn-tanks i{display:block;height:10px;border:1px solid #1F5D5A;border-radius:6px;background:linear-gradient(to top,var(--bn-teal) 0 60%,transparent 60%) no-repeat bottom;background-size:100% 0;opacity:.35;transition:background-size .5s var(--ease-out) var(--d),opacity .3s ease var(--d)}
/* gauge */
.bn-gauge{width:min(150px,100%);margin-top:8px;overflow:visible}
.bn-gauge .bg,.bn-gauge .fg{fill:none;stroke-width:9;stroke-linecap:round}
.bn-gauge .bg{stroke:#1F2937}.bn-gauge .fg{stroke:url(#bng);stroke-dasharray:100;stroke-dashoffset:100;transition:stroke-dashoffset 1.2s var(--ease-out) .1s}
.bn-gauge .needle{transform-origin:60px 60px;transform:rotate(-90deg);transition:transform 1.2s var(--ease-out) .1s}
.bn-gauge .needle path{stroke:var(--bn-txt);stroke-width:2.4;stroke-linecap:round}.bn-gauge .needle circle{fill:var(--bn-txt)}
/* team */
.bn-people{display:flex;align-items:flex-end;gap:6px;padding-bottom:4px}
.bn-people svg{width:18px;height:22px;fill:none;stroke:#3F4A75;stroke-width:1.6;transition:stroke .3s ease var(--d),transform .4s var(--ease-out) var(--d)}
.bn-people .stars{margin-left:6px;display:flex;gap:2px;font-size:16px;line-height:1;color:var(--bn-gold);opacity:0;transform:scale(.6);transition:opacity .3s ease .8s,transform .5s var(--ease-out) .8s}
/* in view */
.metrics-strip.in .bn-tl i{transform:scaleX(1)}
.metrics-strip.in .bn-imp{opacity:1;transform:none}
.metrics-strip.in .bn-imp .rot{animation-play-state:running}
.metrics-strip.in .bn-tanks i{background-size:100% 100%;opacity:1}
.metrics-strip.in .bn-gauge .fg{stroke-dashoffset:20}
.metrics-strip.in .bn-gauge .needle{transform:rotate(54deg)}
.metrics-strip.in .bn-people svg{stroke:var(--bn-ind);transform:translateY(-2px)}
.metrics-strip.in .bn-people .stars{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.bento *{transition:none!important}.bn-imp .rot{animation:none!important}}
@media (max-width:760px){
  .bento{grid-template-columns:1fr 1fr;gap:10px}
  .bn-exp,.bn-k,.bn-team{grid-column:span 2}.bn-tk,.bn-psa{grid-column:span 1}
  .bn{padding:15px 15px 14px}
  .bn-val{font-size:34px}
  .bn-tk .bn-tanks{grid-template-columns:repeat(7,1fr);gap:4px}
  .bn-imps{gap:10px;justify-content:space-between}
  .bn-imp svg{width:30px;height:30px}
  .bn-note{font-size:12.5px}
}
.bn-tl-lab{gap:10px}

/* ===== v6 · expertise cards with animated scenes ===== */
.disciplines article{position:relative;overflow:hidden;transition:background .25s ease,box-shadow .3s ease}
.xp-viz{margin:-22px -22px 18px;height:132px;display:grid;place-items:center;border-bottom:1px solid var(--border);
  background:linear-gradient(rgba(3,105,161,.06) 1px,transparent 1px) 0 0/16px 16px,linear-gradient(90deg,rgba(3,105,161,.06) 1px,transparent 1px) 0 0/16px 16px,linear-gradient(180deg,#F5F9FC,#EAF2F8)}
.xp-viz svg{width:100%;max-width:280px;height:118px;overflow:visible}
.xp-viz svg *{fill:none;stroke:#0369A1;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke}
.xp-viz .thin{stroke-width:1;opacity:.55}
.xp-viz .base{stroke:#9DB4C6;stroke-width:1.2}
.xp-viz .fill{fill:#0369A1;stroke:none}
.xp-viz .fill2{fill:rgba(56,189,248,.18)}
.xp-viz text{fill:#536273;stroke:none;font:600 8px var(--mono);letter-spacing:.06em}
.xp-viz .flow{stroke:#38BDF8;stroke-width:2.2;stroke-dasharray:5 7;animation:xpFlow .9s linear infinite}
.xp-viz .flow.hot{stroke:#F59E0B}.xp-viz .flow.n2{stroke:#0F9D85}.xp-viz .flow.fuel{stroke:#0F9D85}
.xp-viz .shaft{stroke:#38BDF8;stroke-dasharray:3 5;animation:xpFlow .35s linear infinite}
@keyframes xpFlow{to{stroke-dashoffset:-12}}
.xp-viz .spin{transform-box:fill-box;transform-origin:center;animation:xpSpin 1.6s linear infinite}
.xp-viz .spin.s2{animation-duration:.9s}.xp-viz .spin.s3{animation:xpTurn 4s var(--ease-in-out) infinite}
@keyframes xpSpin{to{transform:rotate(360deg)}}
@keyframes xpTurn{0%,15%{transform:rotate(0)}50%,65%{transform:rotate(270deg)}100%{transform:rotate(0)}}
.xp-viz .bed{stroke:none;transform-box:fill-box;transform-origin:bottom;animation:xpBed 4s var(--ease-in-out) infinite}
.xp-viz .bed.a{fill:rgba(56,189,248,.45)}.xp-viz .bed.b{fill:rgba(15,157,133,.4);animation-delay:-2s}
@keyframes xpBed{0%,100%{transform:scaleY(.15)}50%{transform:scaleY(1)}}
.xp-viz .buf{fill:rgba(15,157,133,.35);transform-box:fill-box;transform-origin:bottom;animation:xpBuf 4s ease-in-out infinite}
@keyframes xpBuf{0%,100%{transform:scaleY(.82)}50%{transform:scaleY(.95)}}
.xp-viz .liquid{fill:rgba(56,189,248,.35);stroke:none}
.xp-viz .wave{animation:xpWave 2.4s linear infinite}
@keyframes xpWave{to{transform:translateX(-30px)}}
.xp-viz .rise{animation:xpRise 6s var(--ease-in-out) infinite}
@keyframes xpRise{0%,100%{transform:translateY(10px)}50%{transform:translateY(-4px)}}
.xp-viz .gauge{fill:#0F9D85;stroke:none;animation:xpGauge 6s var(--ease-in-out) infinite}
@keyframes xpGauge{0%,100%{transform:translateY(10px)}50%{transform:translateY(-4px)}}
.xp-viz .drop{fill:#0F9D85;stroke:none;animation:xpDrop 1.4s ease-in infinite}
@keyframes xpDrop{0%{transform:translateY(-6px);opacity:0}20%{opacity:1}100%{transform:translateY(12px);opacity:0}}
.xp-viz .lift{animation:xpLift 4.5s var(--ease-in-out) infinite}
@keyframes xpLift{0%,100%{transform:translateY(4px)}50%{transform:translateY(-6px)}}
.xp-viz .cog .fill{fill:#0369A1}
.xp-viz .lbl{font-size:7.5px;fill:#5F6E7E}
/* play only when on screen; static for reduced motion */
.disciplines:not(.play) .xp-viz *{animation-play-state:paused!important}
@media (prefers-reduced-motion:reduce){.xp-viz *{animation:none!important}}
@media (hover:hover) and (pointer:fine){
  .disciplines article:hover{box-shadow:0 18px 40px -24px rgba(3,105,161,.45);z-index:1}
  .disciplines article:hover .xp-viz{background-color:#E6F1F9}
}
.xp-talk{display:inline-flex;align-items:center;gap:6px;margin-top:12px;align-self:flex-start;padding:7px 12px;border-radius:999px;background:rgba(15,157,133,.1);color:#0B7A67;font:600 12.5px/1.2 var(--sans);text-decoration:none;transition:background-color .2s ease,transform .16s var(--ease-out)}
.xp-talk:active{transform:scale(.97)}
@media (hover:hover) and (pointer:fine){.xp-talk:hover{background:rgba(15,157,133,.18)}}
.xp-cta{display:flex;justify-content:space-between;align-items:center;gap:16px 24px;flex-wrap:wrap;margin-top:18px;padding:18px 22px;border-radius:12px;
  background:radial-gradient(80% 140% at 100% 0%,rgba(56,189,248,.22),transparent 60%),var(--graphite-2);color:#fff}
.xp-cta b{display:block;font:600 18px/1.3 var(--display,Manrope),Inter,sans-serif}
.xp-cta span{display:block;margin-top:4px;color:#A9B8C8;font-size:14px}
.xp-cta-btns{display:flex;gap:10px;flex-wrap:wrap}
.xp-cta .button:not(.primary){color:#fff;border-color:rgba(255,255,255,.25);background:transparent}
@media (max-width:620px){
  .xp-viz{margin:-22px -22px 14px;height:118px}
  .xp-viz svg{height:104px}
  .xp-cta{padding:16px}
  .xp-cta b{font-size:16.5px}
}

/* ===== tank GA figure (S-01) ===== */
.ga-fig{margin:0 0 18px}
.ga-fig a{display:block;border:1px solid var(--border);border-radius:10px;overflow:hidden;background:#fff}
.ga-fig img{display:block;width:100%;height:auto}
.ga-fig figcaption{margin-top:10px}
.ga-fig figcaption b{display:block;font-weight:600}
.ga-fig figcaption span{color:var(--ink-2);font-size:14px}
.ga-facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--border);border:1px solid var(--border);border-radius:10px;overflow:hidden}
.ga-facts div{background:var(--surface,#fff);padding:12px 14px}
.ga-facts span{display:block;font:500 10.5px/1.3 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.ga-facts b{display:block;margin-top:4px;font-size:14px;font-weight:600;color:var(--ink)}
@media (max-width:760px){.ga-facts{grid-template-columns:1fr 1fr}.ga-facts b{font-size:13px}}

/* ===== lightbox ===== */
img.lb-zoom{cursor:zoom-in}
.lb{position:fixed;inset:0;z-index:200;display:grid;grid-template-columns:56px minmax(0,1fr) 56px;align-items:center;background:rgba(6,10,14,.96);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);opacity:0;transition:opacity .18s ease;padding:env(safe-area-inset-top) 0 env(safe-area-inset-bottom)}
.lb.on{opacity:1}
.lb[hidden]{display:none}
.lb-f{margin:0;grid-column:2;display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;padding:56px 0 18px;min-width:0}
.lb-f img{max-width:100%;max-height:calc(100vh - 150px);max-height:calc(100svh - 150px);object-fit:contain;border-radius:6px;background:#fff;opacity:0;transform:scale(.98);transition:opacity .22s ease,transform .3s var(--ease-out)}
.lb-f img.in{opacity:1;transform:none}
.lb-f figcaption{display:flex;gap:16px;justify-content:space-between;width:100%;max-width:1100px;margin-top:12px;color:#C9D4DF;font-size:14px;line-height:1.45}
.lb-n{flex:none;font:500 12px/1.4 var(--mono);color:#8A9AAD}
.lb button{border:0;background:rgba(255,255,255,.08);color:#fff;border-radius:50%;width:44px;height:44px;font-size:24px;line-height:1;cursor:pointer;display:grid;place-items:center;justify-self:center;transition:background-color .2s ease,transform .16s var(--ease-out)}
.lb button:active{transform:scale(.94)}
@media (hover:hover) and (pointer:fine){.lb button:hover{background:rgba(255,255,255,.18)}}
.lb-x{position:absolute;top:calc(12px + env(safe-area-inset-top));right:12px;font-size:18px!important}
.lb.single .lb-p,.lb.single .lb-nx{visibility:hidden}
html.lb-open{overflow:hidden}
@media (max-width:620px){.lb{grid-template-columns:0 minmax(0,1fr) 0}.lb-p,.lb-nx{position:absolute;bottom:calc(16px + env(safe-area-inset-bottom))}.lb-p{left:16px}.lb-nx{right:16px}.lb-f{padding:60px 10px 80px}.lb-f img{max-height:calc(100svh - 190px)}.lb-f figcaption{font-size:13px}}
@media (prefers-reduced-motion:reduce){.lb,.lb-f img{transition:none}}

/* ===== register · expandable media cards ===== */
.reg-item{position:relative;border-bottom:1px solid var(--line)}
.reg-item:last-child{border-bottom:0}
.reg-item>a[data-cat]{border-bottom:0!important}
.reg-item[hidden]{display:none}
.rx-btn{position:absolute;right:16px;bottom:12px;z-index:2;width:34px;height:34px;border-radius:50%;border:1px solid var(--border);background:var(--surface,#fff);color:var(--cyan-strong);cursor:pointer;display:grid;place-items:center;transition:background-color .2s ease,border-color .2s ease,transform .16s var(--ease-out)}
.rx-btn span{position:relative;width:12px;height:12px}
.rx-btn span::before,.rx-btn span::after{content:"";position:absolute;left:0;top:5px;width:12px;height:2px;border-radius:1px;background:currentColor;transition:transform .25s var(--ease-out)}
.rx-btn span::after{transform:rotate(90deg)}
.rx-btn[aria-expanded=true]{background:var(--cyan-strong);border-color:var(--cyan-strong);color:#fff}
.rx-btn[aria-expanded=true] span::after{transform:rotate(0)}
.rx-btn:active{transform:scale(.94)}
@media (hover:hover) and (pointer:fine){.rx-btn:hover{border-color:var(--cyan-strong)}}
.rx-btn:focus-visible{outline:2px solid var(--cyan-strong);outline-offset:2px}
.rx{display:grid;grid-template-rows:0fr;transition:grid-template-rows .32s var(--ease-out)}
.rx.open{grid-template-rows:1fr}
.rx[hidden]{display:none}
.rx-in{overflow:hidden;min-height:0;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:18px 26px;padding:0 22px;background:var(--canvas)}
.rx.open .rx-in{padding:18px 22px 20px;border-top:1px dashed var(--border)}
.rx-media{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;align-content:start}
.rx-media figure{margin:0}
.rx-media a{display:block;border:1px solid var(--border);border-radius:6px;overflow:hidden;background:#fff}
.rx-media img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;transition:transform .4s var(--ease-out)}
@media (hover:hover) and (pointer:fine){.rx-media a:hover img{transform:scale(1.04)}}
.rx-media figcaption{display:none}
.rx-scope{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.rx-scope li{font-size:13.5px;line-height:1.5;color:var(--ink-2)}
.rx-scope b{display:inline-block;margin-right:6px;font:600 10.5px/1 var(--mono);letter-spacing:.08em;color:var(--cyan-strong)}
.rx-cta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.rx-cta .button{padding:10px 13px;font-size:12px}
.rx-in:not(:has(.rx-media)){grid-template-columns:1fr}
@media (max-width:760px){
  .rx-in{grid-template-columns:1fr;padding:0 14px}
  .rx.open .rx-in{padding:14px 14px 16px}
  .rx-btn{right:12px;bottom:10px;width:32px;height:32px}
  .reg-item>a[data-cat]{padding-bottom:20px}
}
@media (prefers-reduced-motion:reduce){.rx{transition:none}}

/* ===== quick engineering tools ===== */
.calc{border:1px solid var(--border);border-radius:14px;background:var(--surface,#fff);overflow:hidden;box-shadow:0 1px 2px rgba(24,36,49,.04)}
.calc-tabs{display:flex;gap:4px;padding:6px;background:var(--canvas);border-bottom:1px solid var(--border);overflow-x:auto;scrollbar-width:none}
.calc-tabs::-webkit-scrollbar{display:none}
.calc-tabs button{flex:none;padding:10px 14px;border:0;border-radius:8px;background:transparent;color:var(--ink-2);font:600 13.5px/1 var(--sans);cursor:pointer;white-space:nowrap;transition:background-color .2s ease,color .2s ease}
.calc-tabs button[aria-selected=true]{background:var(--surface,#fff);color:var(--cyan-strong);box-shadow:0 1px 3px rgba(24,36,49,.12)}
.calc-tabs button:focus-visible{outline:2px solid var(--cyan-strong);outline-offset:-2px}
.calc-panel{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0;margin:0}
.calc-panel[hidden]{display:none}
.calc-in{display:grid;gap:14px;padding:22px;border-right:1px solid var(--border)}
.calc-in label{display:grid;gap:6px;font:600 13px/1.3 var(--sans);color:var(--ink)}
.calc-in label>span{font:400 11.5px/1 var(--mono);color:var(--ink-3)}
.calc-in input,.calc-in select{width:100%;height:42px;padding:0 12px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--ink);font:500 16px/1 var(--sans);font-variant-numeric:tabular-nums;transition:border-color .2s ease,box-shadow .2s ease}
.calc-in input:focus,.calc-in select:focus{outline:none;border-color:var(--cyan-strong);box-shadow:0 0 0 3px rgba(3,105,161,.12)}
.calc-pair{display:grid;grid-template-columns:1fr 110px;gap:8px}
.calc-hint{margin:2px 0 0;font-size:12.5px;color:var(--ink-3)}
.calc-out{padding:22px;display:flex;flex-direction:column;gap:14px;background:linear-gradient(180deg,#F7FAFC,#F0F5F9)}
.calc-big span{display:block;font:500 11px/1.3 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.calc-big b{display:inline-block;margin-top:6px;font:600 44px/1 var(--display,Manrope),Inter,sans-serif;letter-spacing:-.03em;color:var(--ink);font-variant-numeric:tabular-nums}
.calc-big small{margin-left:8px;font:500 14px/1 var(--mono);color:var(--cyan-strong)}
.calc-out dl{margin:0;display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--border);border:1px solid var(--border);border-radius:8px;overflow:hidden}
.calc-out dl div{background:#fff;padding:10px 12px}
.calc-out dt{font:500 10.5px/1.3 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.calc-out dd{margin:4px 0 0;font-weight:600;font-size:14.5px;color:var(--ink);font-variant-numeric:tabular-nums}
.calc-tank{width:100%;max-width:300px;height:auto}
.calc-tank .tk-o{fill:none;stroke:#0369A1;stroke-width:1.6}
.calc-tank .tk-l{fill:rgba(56,189,248,.35);transition:y .3s var(--ease-out),height .3s var(--ease-out)}
.calc-bar{position:relative;height:12px;border-radius:6px;background:#E2E8F0;overflow:hidden}
.calc-bar i{position:absolute;inset:0;transform-origin:left;transition:transform .35s var(--ease-out),background-color .2s ease;background:#0F9D85}
.calc-bar i.low{background:#38BDF8}.calc-bar i.high{background:#F59E0B}
.calc-bar em{position:absolute;top:0;bottom:0;border-left:2px solid rgba(24,36,49,.5);border-right:2px solid rgba(24,36,49,.5)}
.calc-send{align-self:flex-start}
.calc-note{margin:0;padding:12px 22px;border-top:1px solid var(--border);font-size:12.5px;color:var(--ink-3)}
@media (max-width:760px){
  .calc-panel{grid-template-columns:1fr}
  .calc-in{border-right:0;border-bottom:1px solid var(--border);padding:18px}
  .calc-out{padding:18px}
  .calc-big b{font-size:38px}
  .calc-note{padding:12px 18px}
}
.calc-in label{display:block}
.calc-in label>span{margin-left:6px}
.calc-in label>input,.calc-in label>select,.calc-in label>.calc-pair{margin-top:7px}
@media (max-width:420px){.calc-tabs button{padding:9px 11px;font-size:12.5px}}

/* ===== 3D model viewer ===== */
.v3d{margin:22px 0 0;border:1px solid var(--border);border-radius:12px;overflow:hidden;background:var(--surface,#fff)}
.v3d-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;padding:14px 18px;border-bottom:1px solid var(--border)}
.v3d-head .label{font:500 10.5px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--cyan-strong)}
.v3d-head b{font-weight:600;font-size:16px}
.v3d-stage{position:relative;height:min(62vh,520px);min-height:340px;background:radial-gradient(90% 80% at 50% 30%,#FFFFFF,#E6EEF5 70%,#DCE6EF);overflow:hidden}
.v3d-stage canvas{position:absolute;inset:0;width:100%!important;height:100%!important;display:block;touch-action:none;cursor:grab}
.v3d-stage canvas:active{cursor:grabbing}
.v3d-poster{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;transition:opacity .3s ease}
.v3d.live .v3d-poster,.v3d.live .v3d-load{opacity:0;pointer-events:none}
.v3d-load{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:inline-flex;align-items:center;gap:10px;padding:14px 20px;border:0;border-radius:999px;background:var(--graphite-2);color:#fff;font:600 14px/1 var(--sans);cursor:pointer;box-shadow:0 12px 30px -10px rgba(11,15,20,.5);transition:transform .16s var(--ease-out),background-color .2s ease}
.v3d-load small{font:500 11px/1 var(--mono);color:#9fb0c2}
.v3d-load:active{transform:translate(-50%,-50%) scale(.97)}
@media (hover:hover) and (pointer:fine){.v3d-load:hover{background:#0369A1}}
.v3d-labels{position:absolute;inset:0;pointer-events:none}
.v3d-labels span{position:absolute;left:0;top:0;padding:3px 7px;border-radius:5px;background:rgba(11,15,20,.82);color:#fff;font:500 10.5px/1.2 var(--mono);white-space:nowrap;transition:opacity .2s ease}
.v3d-labels span b{color:#7FE0C9;font-weight:600}
.v3d-labels.off{display:none}
.v3d-ui{display:flex;flex-wrap:wrap;gap:8px;padding:12px 18px;border-top:1px solid var(--border);background:var(--canvas)}
.v3d-ui[hidden]{display:none}
.v3d-ui button{padding:8px 12px;border:1px solid var(--border);border-radius:999px;background:#fff;color:var(--ink);font:600 12.5px/1 var(--sans);cursor:pointer;transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .16s var(--ease-out)}
.v3d-ui button[aria-pressed=true]{background:var(--cyan-strong);border-color:var(--cyan-strong);color:#fff}
.v3d-ui button:active{transform:scale(.97)}
.v3d-note{margin:0;padding:12px 18px;border-top:1px solid var(--border);font-size:12.5px;color:var(--ink-3)}
@media (max-width:760px){.v3d-stage{height:58vh;min-height:320px}.v3d-labels span{font-size:9.5px}}

.calc-form{display:contents}

/* ---------- GA hotspot explorer ---------- */
.hs-stage{position:relative}
.hs-stage>a{margin:0}
.hs-pin{position:absolute;left:calc(var(--x)*1%);top:calc(var(--y)*1%);z-index:2;width:30px;height:30px;margin:-15px 0 0 -15px;padding:0;border:0;border-radius:50%;background:var(--cyan-strong);color:#fff;cursor:pointer;box-shadow:0 2px 8px rgba(3,40,70,.35),0 0 0 2px #fff;transition:transform .2s var(--ease-out),background-color .2s ease;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
.hs-pin::before,.hs-pin::after{content:"";position:absolute;left:50%;top:50%;width:12px;height:2px;margin:-1px 0 0 -6px;background:currentColor;border-radius:1px;transition:transform .25s var(--ease-out)}
.hs-pin::after{transform:rotate(90deg)}
.hs-pin .hs-tx{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.hs-pin.on{background:var(--graphite);transform:scale(1.12)}
.hs-pin.on::before{transform:rotate(45deg)}.hs-pin.on::after{transform:rotate(135deg)}
.hs-pin:focus-visible{outline:2px solid var(--cyan-strong);outline-offset:3px}
@media (hover:hover) and (pointer:fine){.hs-pin:hover{transform:scale(1.15)}}
.hs-in .hs-pin:not(.on){animation:hsPulse 2.4s var(--ease-out) infinite;animation-delay:calc(var(--y)*12ms)}
.hs-active .hs-pin:not(.on){animation:none;opacity:.75}
@keyframes hsPulse{0%{box-shadow:0 2px 8px rgba(3,40,70,.35),0 0 0 2px #fff,0 0 0 2px rgba(56,189,248,.55)}70%,100%{box-shadow:0 2px 8px rgba(3,40,70,.35),0 0 0 2px #fff,0 0 0 16px rgba(56,189,248,0)}}
.ga-fig.hs{position:relative}
.hs-card{position:absolute;z-index:3;left:calc(var(--px) + 24px);top:calc(var(--py) - 18px);width:min(320px,calc(var(--sw)*.46));padding:14px 16px 10px;background:#fff;color:var(--ink);border:1px solid var(--border);border-top:3px solid var(--cyan-strong);border-radius:10px;box-shadow:0 14px 34px rgba(11,15,20,.22);font-size:14px;line-height:1.5;animation:hsIn .22s var(--ease-out)}
.hs-card.left{left:auto;right:calc(100% - var(--px) + 24px)}
.hs-card.up{top:calc(var(--py) + 18px);transform:translateY(-100%)}
.hs-card p{margin:6px 0 8px;color:var(--ink-2)}
.hs-card-h{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.hs-card-h b{font-weight:600;font-size:15px}
.hs-x,.hs-nav button{flex:none;width:30px;height:30px;display:grid;place-items:center;padding:0;border:1px solid var(--border);border-radius:50%;background:#fff;color:var(--ink);font-size:13px;cursor:pointer}
.hs-x{border:0;margin:-6px -8px 0 0;color:var(--ink-3)}
.hs-nav{display:flex;align-items:center;gap:10px;font:500 11px/1 var(--mono);color:var(--ink-3);border-top:1px solid var(--border);padding-top:8px}
.hs-nav span{margin-right:auto;order:-1}
@keyframes hsIn{from{opacity:0}}
.hs-legend{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-top:10px}
.hs-hint{width:100%;font-size:13px;color:var(--ink-3);margin-bottom:2px}
.hs-hint i{display:inline-grid;place-items:center;width:18px;height:18px;border-radius:50%;background:var(--cyan-strong);color:#fff;font-style:normal;font-weight:700;font-size:13px;line-height:1}
.hs-chip{padding:6px 11px;border:1px solid var(--border);border-radius:999px;background:var(--surface,#fff);color:var(--ink-2);font:500 12.5px/1.2 var(--sans,inherit);cursor:pointer;transition:background-color .2s ease,border-color .2s ease,color .2s ease}
.hs-chip.on{background:var(--cyan-strong);border-color:var(--cyan-strong);color:#fff}
@media (hover:hover) and (pointer:fine){.hs-chip:hover{border-color:var(--cyan-strong);color:var(--ink)}}
@media (max-width:760px){
  .hs-pin{width:22px;height:22px;margin:-11px 0 0 -11px}
  .hs-pin::before,.hs-pin::after{width:10px;margin-left:-5px}
  .hs-card,.hs-card.left,.hs-card.up{position:relative;left:auto;right:auto;top:auto;transform:none;width:auto;margin-top:10px}
  .hs-legend{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;padding-bottom:4px}
  .hs-hint{display:none}.hs-chip{flex:none}
}
@media (prefers-reduced-motion:reduce){.hs-in .hs-pin:not(.on){animation:none}.hs-card{animation:none}}

/* ---------- workflow sample deliverables ---------- */
.wf-sample{grid-area:sm;margin-top:6px;border-top:1px dashed var(--border);padding-top:12px}
.wf-sample summary{display:flex;align-items:center;gap:10px;list-style:none;cursor:pointer;font-weight:600;font-size:14px;color:var(--cyan-strong);-webkit-tap-highlight-color:transparent;width:fit-content;max-width:100%}
.wf-sample summary::-webkit-details-marker{display:none}
.sm-ic{position:relative;flex:none;width:22px;height:22px;border-radius:50%;background:rgba(3,105,161,.1)}
.sm-ic::before,.sm-ic::after{content:"";position:absolute;left:6px;top:10px;width:10px;height:2px;border-radius:1px;background:var(--cyan-strong);transition:transform .25s var(--ease-out)}
.sm-ic::after{transform:rotate(90deg)}
.wf-sample[open] .sm-ic::after{transform:rotate(0)}
.sm-t1{font:500 10.5px/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);padding:4px 8px;border:1px solid var(--border);border-radius:999px}
@media (hover:hover) and (pointer:fine){.wf-sample summary:hover .sm-ic{background:rgba(3,105,161,.18)}}
.wf-sample summary:focus-visible{outline:2px solid var(--cyan-strong);outline-offset:3px;border-radius:6px}
.sm-body{margin-top:12px;padding:16px 18px;background:var(--canvas);border:1px solid var(--border);border-radius:8px;animation:smIn .3s var(--ease-out)}
@keyframes smIn{from{opacity:0;transform:translateY(-4px)}}
.sm-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:4px 12px;margin-bottom:10px}
.sm-head b{font-size:15px;font-weight:600}
.sm-src{font:500 10.5px/1.3 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.sm-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.sm-t{width:100%;border-collapse:collapse;font-size:13.5px;line-height:1.4;background:#fff;border:1px solid var(--border)}
.sm-t th{text-align:left;font:500 10.5px/1.2 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);background:#fff;padding:8px 10px;border-bottom:1px solid var(--border)}
.sm-t td{padding:7px 10px;border-bottom:1px solid var(--border);color:var(--ink);vertical-align:top}
.sm-t tr:last-child td{border-bottom:0}
.sm-t td:first-child{color:var(--ink-2)}
.sm-t td{font-variant-numeric:tabular-nums}
.sm-t.sm-mono td:first-child{font:500 12px/1.4 var(--mono);color:var(--cyan-strong)}
.sm-note{margin:10px 0 0;font-size:12.5px;color:var(--ink-3);line-height:1.5}
.sm-note a{color:var(--cyan-strong)}
.sm-calc{display:grid;gap:8px}
.sm-calc div{display:grid;grid-template-columns:110px 1fr;gap:10px;align-items:baseline;padding:9px 12px;background:#fff;border:1px solid var(--border);border-radius:6px}
.sm-calc span{font:500 10.5px/1.2 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.sm-calc b{font:500 14px/1.4 var(--mono);color:var(--ink)}
.sm-calc .ok{border-color:rgba(3,105,161,.45);background:rgba(56,189,248,.08)}
.sm-calc .ok b{color:var(--cyan-strong)}
.sm-check{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:6px}
.sm-check li{position:relative;padding:8px 10px 8px 32px;background:#fff;border:1px solid var(--border);border-radius:6px;font-size:13.5px}
.sm-check li::before{content:"";position:absolute;left:11px;top:12px;width:9px;height:5px;border-left:2px solid var(--cyan-strong);border-bottom:2px solid var(--cyan-strong);transform:rotate(-45deg)}
.sm-model{display:block;position:relative;border-radius:8px;overflow:hidden;border:1px solid var(--border);background:#fff;text-decoration:none}
.sm-model img{display:block;width:100%;height:auto;max-height:280px;object-fit:cover}
.sm-model span{position:absolute;left:10px;bottom:10px;padding:8px 12px;border-radius:999px;background:rgba(11,15,20,.82);color:#fff;font-size:13px;font-weight:600}
.sm-model i{font-style:normal;display:inline-block;transition:transform .2s var(--ease-out)}
@media (hover:hover) and (pointer:fine){.sm-model:hover i{transform:translateX(3px)}}
@media (max-width:760px){.sm-body{padding:12px}.sm-t{font-size:12.5px}.sm-t th,.sm-t td{padding:7px 8px}.sm-mono td:not(:nth-child(3)):not(:first-child){white-space:nowrap}.sm-calc div{grid-template-columns:1fr;gap:4px}.sm-t1{display:none}}
@media (prefers-reduced-motion:reduce){.sm-body{animation:none}}

.ev-grid.ev-2c{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:560px){.ev-grid.ev-2c{grid-template-columns:1fr}}

.disciplines .go.go-off{color:var(--dim);font-weight:400}