/* OD-LAYOUT-PRIMITIVES v1 - structure only: display, flex/grid, overflow, wrapping, ratio.
   Put this @layer first; product CSS outside the layer always wins. */
@layer od-layout {
  :where(.od-stack,.od-row,.od-row-top,.od-cluster,.od-grid,.od-field,.od-stat,.od-cell,.od-tile) > :where(*) { min-width: 0; }
  .od-stack   { display: flex; flex-direction: column; gap: var(--od-gap, 8px); }
  .od-row     { display: flex; align-items: center; gap: var(--od-gap, 8px); }
  .od-row-top { display: flex; align-items: flex-start; gap: var(--od-gap, 8px); }
  .od-cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--od-gap, 8px); }
  .od-fill    { flex: 1 1 0; min-width: 0; }
  .od-fixed   { flex: none; }
  .od-grid    { display: grid; gap: var(--od-gap, 12px); grid-template-columns: repeat(var(--od-cols, 3), minmax(0, 1fr)); }
  .od-stat, .od-field, .od-cell { display: grid; gap: var(--od-gap, 2px); }
  :where(.od-stat,.od-field,.od-cell) > :where(*) { display: block; }
  .od-tile { display: grid; grid-template-rows: auto 1fr; }
  :where(.od-tile) > :where(*) { display: block; }
  .od-media { display: block; width: 100%; height: auto; aspect-ratio: var(--od-ratio, auto); }
  .od-media-cover { object-fit: cover; }
  .od-truncate { display: block; max-width: 100%; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
  .od-clamp-2, .od-clamp-3 { display: -webkit-box; -webkit-box-orient: vertical; overflow: hidden; overflow-wrap: anywhere; }
  .od-clamp-2 { -webkit-line-clamp: 2; }
  .od-clamp-3 { -webkit-line-clamp: 3; }
  .od-lines-2 { min-height: calc(2 * 1.4em); }
  .od-nowrap  { white-space: nowrap; }
  .od-keep    { word-break: keep-all; overflow-wrap: anywhere; }
  .od-screen { display: grid; grid-template-rows: auto minmax(0, 1fr) auto; height: 100%; }
  .od-scroll { overflow-y: auto; overscroll-behavior: contain; min-height: 0; }
  .od-rail { display: flex; gap: var(--od-gap, 8px); overflow-x: auto; scroll-snap-type: x proximity; scrollbar-width: none;
             padding-inline: var(--od-rail-pad, 16px); scroll-padding-inline: var(--od-rail-pad, 16px); }
  .od-rail::-webkit-scrollbar { display: none; }
  :where(.od-rail) > :where(*) { flex: none; scroll-snap-align: start; }
  :where(.od-rail) > :where(:last-child) { margin-inline-end: var(--od-rail-pad, 16px); }
  .od-spacer { flex: none; visibility: hidden; pointer-events: none; }
  .od-touch  { min-width: 44px; min-height: 44px; }
}
/* /OD-LAYOUT-PRIMITIVES v1 */
:root{
  --ground:#0D1217; --ground-2:#11181F; --panel:#151D25; --panel-2:#1A232E;
  --line:rgba(237,242,245,.11); --line-soft:rgba(237,242,245,.07);
  --ink:#EDF2F5; --muted:#A7B5C1; --faint:#A3B4C0;
  --teal:#2DD4BF; --teal-ink:#062B27; --amber:#E8C468;
  --display:"Sora",system-ui,sans-serif; --body:"Manrope",system-ui,-apple-system,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
  --r-sm:10px; --r-md:16px;
  --nav-h:68px; --max:1120px;
  --dur:220ms;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto} *{animation:none!important;transition:none!important}}
body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
::selection{background:var(--teal);color:var(--teal-ink)}
a{color:inherit}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-9999px;top:0;background:var(--teal);color:var(--teal-ink);padding:10px 16px;z-index:200;border-radius:0 0 10px 0;font-weight:700}
.skip:focus{left:0}
/* LOAD INTRO - deep blue rises into dark (single moment, then gone) */
body.loading{overflow:hidden}
.veil{position:fixed;inset:0;z-index:300;display:grid;place-items:center;overflow:hidden;background:linear-gradient(115deg,#3B82F6 0%,#1D4ED8 28%,#12306E 55%,#0A1626 78%,#0D1217 100%);background-size:220% 220%;animation:veilFlow 2.6s ease-in-out infinite alternate;transition:transform .8s cubic-bezier(.7,0,.2,1),opacity .5s ease .35s}
.veil::after{content:"";position:absolute;inset:-20%;background:radial-gradient(ellipse 55% 40% at 30% 25%,rgba(120,170,255,.5),transparent 65%),radial-gradient(ellipse 50% 38% at 75% 70%,rgba(45,212,191,.28),transparent 65%);animation:veilGlow 3.2s ease-in-out infinite alternate;pointer-events:none}
.veil>div{position:relative;z-index:1}
.veil.done{transform:translateY(-100%);opacity:.98;pointer-events:none}
.veil-mark{font:800 44px var(--display);letter-spacing:-.03em;color:#fff}
.veil-sub{font:500 11px var(--mono);letter-spacing:.2em;opacity:.8;color:#fff}
.veil-bar{width:180px;height:2px;background:rgba(255,255,255,.25);margin:16px auto 0;border-radius:2px;overflow:hidden}
.veil-bar i{display:block;height:100%;width:40%;background:#fff;border-radius:2px;animation:load 1s ease-in-out infinite}
@keyframes load{0%{transform:translateX(-100%)}100%{transform:translateX(450%)}}
@keyframes veilFlow{0%{background-position:0% 20%}50%{background-position:60% 55%}100%{background-position:100% 90%}}
@keyframes veilGlow{from{transform:translate3d(-3%,-2%,0) scale(1)}to{transform:translate3d(3%,3%,0) scale(1.08)}}
@keyframes auraDrift{from{transform:translate3d(-2%,0,0) scale(1)}to{transform:translate3d(2%,1%,0) scale(1.05)}}
.hero-aura{position:absolute;inset:0;pointer-events:none;opacity:1;background:radial-gradient(ellipse 80% 65% at 50% 0%,rgba(46,107,255,.45),rgba(18,48,110,.22) 45%,transparent 75%);animation:auraDrift 7s ease-in-out infinite alternate;transition:opacity 2.2s ease}
.hero.settled .hero-aura{opacity:.28}
@media (prefers-reduced-motion:reduce){.veil{display:none}.hero-aura{animation:none;opacity:.28}}
/* NAV - one of two glass surfaces */
.nav{position:fixed;inset:0 0 auto 0;z-index:100;height:var(--nav-h);
  background:rgba(13,18,23,.62);backdrop-filter:blur(18px) saturate(1.3);-webkit-backdrop-filter:blur(18px) saturate(1.3);
  border-bottom:1px solid var(--line-soft)}
.nav-in{max-width:var(--max);margin:0 auto;height:100%;padding:0 20px;display:flex;align-items:center;gap:12px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;min-height:44px}
.mark{width:34px;height:34px;flex:none;border-radius:10px;background:var(--ink);color:#0D1217;display:grid;place-items:center;font-family:var(--display);font-weight:800;font-size:17px;letter-spacing:-.5px}
.brand small{display:block;font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.12em;text-transform:uppercase;line-height:1.2}
.brand b{display:block;font-family:var(--display);font-size:15px;line-height:1.2}
.links{display:flex;gap:2px;margin-left:auto}
.links a{text-decoration:none;font-size:14px;font-weight:600;color:var(--muted);padding:10px 12px;border-radius:10px;min-height:44px;display:inline-flex;align-items:center}
.links a:hover{color:var(--ink);background:rgba(255,255,255,.06)}
.links a[aria-current="true"]{color:var(--ink);background:rgba(255,255,255,.08)}
.lang{position:relative;display:flex;align-items:center;border:1px solid var(--line);border-radius:10px;padding:3px;margin-left:8px;background:transparent}
.lang::after{content:"";position:absolute;right:14px;top:50%;width:8px;height:8px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:translateY(-70%) rotate(45deg);pointer-events:none}
.lang:hover{border-color:rgba(237,242,245,.22)}
.lang select{appearance:none;-webkit-appearance:none;border:0;background:transparent;color:var(--ink);font:700 12px var(--mono);letter-spacing:.08em;text-transform:uppercase;min-width:44px;min-height:38px;border-radius:10px;cursor:pointer;padding:0 32px 0 12px;max-width:190px}
.lang select::-ms-expand{display:none}
.lang select option{background:var(--panel);color:var(--ink);text-transform:none;letter-spacing:0}
.lang button{border:0;background:var(--ink);color:#0D1217;font:700 12px var(--mono);border-radius:10px;min-width:44px;min-height:38px;cursor:pointer;padding:0 12px;margin-left:4px}
.burger{display:none;border:1px solid var(--line);background:transparent;color:var(--ink);border-radius:10px;min-width:44px;min-height:44px;font-size:18px;cursor:pointer}
main{display:block;padding-top:var(--nav-h)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
/* HERO */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line-soft)}
#field{position:absolute;inset:0;width:100%;height:100%;display:block;opacity:.9}
.hero-grid-lines{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse 90% 80% at 30% 20%,#000 30%,transparent 75%)}
.hero-in{position:relative;max-width:var(--max);margin:0 auto;padding:88px 20px 56px;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--teal);display:flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:28px;height:2px;background:var(--teal);display:inline-block;border-radius:2px}
h1{font-family:var(--display);font-size:clamp(40px,6vw,68px);line-height:1.02;letter-spacing:-.03em;margin:16px 0 12px}
h1 .thin{color:var(--muted);font-weight:400}
.lede{color:var(--muted);font-size:18px;max-width:56ch;margin:0 0 24px}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.btn{display:inline-flex;align-items:center;gap:10px;min-height:48px;padding:0 22px;border-radius:10px;font-weight:700;font-size:15px;text-decoration:none;cursor:pointer;border:1px solid transparent}
.btn-solid{background:var(--teal);color:var(--teal-ink)}
.btn-solid:hover{filter:brightness(1.08)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.06)}
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:32px;max-width:520px}
.od-stat{background:rgba(255,255,255,.03);border:1px solid var(--line-soft);border-radius:var(--r-md);padding:14px 16px}
.od-stat .n{font-family:var(--display);font-size:clamp(22px,3vw,30px);font-weight:800;letter-spacing:-.02em}
.od-stat .c{font-size:13px;color:var(--muted)}
/* hero card - flat panel + single glass featured element lives in projects */
.hero-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.hero-card .term-top{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--line-soft);font-family:var(--mono);font-size:12px;color:var(--muted)}
.dot{width:10px;height:10px;border-radius:50%;flex:none}
.term{padding:18px;font-family:var(--mono);font-size:13.5px;line-height:1.7;color:#C9D5DD;min-height:280px}
.term .p{color:var(--teal)} .term .c{color:var(--faint)} .term .y{color:var(--amber)}
.caret{display:inline-block;width:9px;height:18px;background:var(--teal);vertical-align:-3px;animation:blink 1.1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
/* sections */
section{padding:64px 0;content-visibility:auto;contain-intrinsic-size:auto 600px}
.sec-head{display:flex;align-items:flex-end;gap:16px;margin-bottom:28px;flex-wrap:wrap}
.sec-head{display:block}
.sec-head h2{max-width:20ch}
h2{font-family:var(--display);font-size:clamp(26px,3.4vw,36px);letter-spacing:-.02em;margin:6px 0 0;line-height:1.15}
.sec-head p{margin:8px 0 0;color:var(--muted);max-width:65ch;font-size:15px}
/* about */
.about-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:20px}
.card{background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--r-md);padding:24px}
.card h3{font-family:var(--display);font-size:18px;margin:0 0 10px}
.card p{color:var(--muted);margin:0 0 12px;font-size:15.5px}
.card p:last-child{margin-bottom:0}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{font-family:var(--mono);font-size:12px;color:#C9D5DD;border:1px solid var(--line);border-radius:10px;padding:7px 12px;min-height:32px;display:inline-flex;align-items:center}
.tag.hot{border-color:rgba(45,212,191,.5);color:var(--teal)}
.principles{display:grid;gap:12px}
.pr{display:grid;grid-template-columns:44px 1fr;gap:14px;align-items:start;padding:16px;border:1px solid var(--line-soft);border-radius:var(--r-md);background:rgba(255,255,255,.02)}
.pr .ic{width:44px;height:44px;border-radius:16px;background:rgba(45,212,191,.12);display:grid;place-items:center;flex:none}
.pr .ic svg{width:22px;height:22px;stroke:var(--teal);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.pr b{display:block;font-size:15px}
.pr span{display:block;color:var(--muted);font-size:14px}
/* projects */
.filters{display:flex;gap:8px;overflow-x:auto;padding:4px 2px 14px;scrollbar-width:none}
.filters::-webkit-scrollbar{display:none}
.chip{flex:none;border:1px solid var(--line);background:transparent;color:var(--muted);border-radius:10px;padding:0 16px;min-height:44px;font:600 13.5px var(--body);cursor:pointer}
.chip[aria-pressed="true"]{background:var(--ink);color:#0D1217;border-color:var(--ink)}
.proj-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.proj{background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--r-md);padding:22px;display:flex;flex-direction:column;gap:10px;min-width:0}
.proj.featured{background:rgba(21,29,37,.55);backdrop-filter:blur(20px) saturate(1.25);-webkit-backdrop-filter:blur(20px) saturate(1.25);border-color:rgba(45,212,191,.28);position:relative;overflow:hidden}
.proj.featured::after{content:"";position:absolute;inset:auto -30% -45% -30%;height:60%;background:radial-gradient(ellipse at 50% 100%,rgba(45,212,191,.16),transparent 70%);pointer-events:none}
.proj-top{display:flex;align-items:center;gap:10px}
.proj-top .k{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint)}
.badge{margin-left:auto;font-family:var(--mono);font-size:11px;color:var(--teal);border:1px solid rgba(45,212,191,.4);border-radius:10px;padding:4px 10px;white-space:nowrap}
.proj h3{font-family:var(--display);font-size:20px;margin:0;letter-spacing:-.01em}
.proj h3 a{color:inherit;text-decoration:none}
.proj h3 a:hover{text-decoration:underline;text-underline-offset:4px}
.proj p{margin:0;color:var(--muted);font-size:15px}
.meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:8px}
.mini-links{display:flex;gap:8px;margin-top:6px}
.mini-links a{min-height:44px;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;text-decoration:none;color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:0 14px}
.mini-links a:hover{background:rgba(255,255,255,.06)}
.mini-links a.primary{background:var(--teal);border-color:var(--teal);color:var(--teal-ink)}
/* blog previews as lab cards */
.postcards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.postcard{background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--r-md);overflow:hidden;display:flex;flex-direction:column;min-width:0;color:inherit;text-decoration:none}
.postcard:hover{border-color:rgba(45,212,191,.4)}
.pviz{height:140px;flex:none;border-bottom:1px solid var(--line-soft)}
.pviz.pv1{background:linear-gradient(115deg,transparent 38%,rgba(45,212,191,.28) 46%,transparent 54%),linear-gradient(115deg,transparent 58%,rgba(232,196,100,.2) 66%,transparent 74%),radial-gradient(circle at 20% 85%,rgba(59,130,246,.45),transparent 55%),var(--ground-2)}
.pviz.pv2{background:linear-gradient(90deg,rgba(45,212,191,.22) 0 50%,rgba(59,130,246,.22) 50% 100%),repeating-linear-gradient(90deg,transparent 0 26px,rgba(255,255,255,.07) 26px 28px)}
.pviz.pv3{background:repeating-radial-gradient(circle at 80% 20%,rgba(45,212,191,.3) 0 2px,transparent 2px 18px),linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),var(--ground-2)}
.pviz.lv1{background:linear-gradient(rgba(232,196,100,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(232,196,100,.14) 1px,transparent 1px),radial-gradient(ellipse 60% 80% at 80% 100%,rgba(196,158,44,.3),transparent 70%),var(--ground-2);background-size:22px 22px,22px 22px,auto}
.pviz.lv2{background:repeating-linear-gradient(45deg,transparent 0 14px,rgba(46,107,255,.16) 14px 16px),linear-gradient(rgba(232,196,100,.1) 1px,transparent 1px),var(--ground-2);background-size:auto,auto,22px 22px}
.pviz.lv3{background:radial-gradient(circle at 25% 70%,rgba(46,107,255,.4),transparent 55%),repeating-linear-gradient(0deg,transparent 0 18px,rgba(232,196,100,.12) 18px 20px),var(--ground-2)}
.lab-cta{margin-top:16px}
.postcard .pbody{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1}
.postcard h3{font-family:var(--display);font-size:17px;margin:0;line-height:1.3}
.postcard p{margin:0;color:var(--muted);font-size:14px}
.postcard .go{color:var(--teal);font-weight:700;font-size:14px;margin-top:auto;padding-top:6px}
@media(max-width:960px){.postcards{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.postcards{grid-template-columns:1fr}}
/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
form{background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--r-md);padding:24px;display:flex;flex-direction:column;gap:14px}
label{font-size:13px;font-weight:700;display:grid;gap:6px}
input,textarea{background:var(--ground-2);border:1px solid var(--line);border-radius:10px;color:var(--ink);font:500 15px var(--body);padding:12px 14px;min-height:48px;width:100%}
textarea{min-height:120px;resize:vertical}
input:focus,textarea:focus{border-color:var(--teal);outline:none}
.err{font-size:13px;color:#F0A3A3;min-height:18px;display:block}
.form-ok{background:rgba(45,212,191,.1);border:1px solid rgba(45,212,191,.4);color:var(--ink);border-radius:10px;padding:12px 14px;font-size:14px;display:none}
.form-ok.show{display:block}
.direct{display:flex;flex-direction:column;gap:14px}
.addr{font-family:var(--mono);font-size:15px;background:var(--ground-2);border:1px solid var(--line);border-radius:16px;padding:16px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.addr button{margin-left:auto;background:var(--ink);color:#0D1217;border:0;border-radius:10px;font:700 13px var(--body);min-height:44px;padding:0 18px;cursor:pointer}
.soc{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.soc a{text-decoration:none;border:1px solid var(--line-soft);background:var(--panel);border-radius:16px;padding:14px;display:grid;gap:2px;min-height:76px}
.soc a:hover{border-color:rgba(45,212,191,.4)}
.soc b{font-size:14px} .soc span{font-size:12px;color:var(--muted);font-family:var(--mono)}
footer{border-top:1px solid var(--line-soft);padding:28px 0 40px;color:var(--faint);font-size:13px;font-family:var(--mono)}
footer .wrap{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
footer .sp{margin-left:auto}
/* responsive */
@media(max-width:960px){
  .hero-in{grid-template-columns:1fr;padding-top:64px}
  .about-grid,.contact-grid{grid-template-columns:1fr}
  .proj-grid{grid-template-columns:1fr}
}
@media(max-width:640px){
  .links{display:none;position:absolute;top:var(--nav-h);left:0;right:0;background:rgba(13,18,23,.97);backdrop-filter:blur(18px);flex-direction:column;padding:12px 20px 20px;border-bottom:1px solid var(--line)}
  .links.open{display:flex}
  .burger{display:inline-flex;align-items:center;justify-content:center;margin-left:auto}
  .lang{margin-left:0}
  .stats{grid-template-columns:1fr 1fr}
  section{padding:48px 0}
}