/* ravikus1457.github.io — 2026-10-01 redesign.
   Palette: ink / panel / rule, amber accent (AWS-adjacent, one per view), tunnel blue for links,
   green only for health state. Display: Sora. Body: IBM Plex Sans. Data: IBM Plex Mono.
   Committed dark design: every colour is explicit, nothing inherits the host's ground. */
:root{
  --bg:#0b1020; --bg2:#0e1527; --panel:#121a2e; --panel2:#182238; --line:#223052; --line2:#2d3d63;
  --text:#e8eef7; --muted:#9fb0c9; --dim:#6b7c99;
  --amber:#f5a524; --amber2:#ffc45c; --blue:#58a6ff; --green:#2ee6a6; --red:#ff6b6b;
  --display:"Sora",system-ui,-apple-system,"Segoe UI",sans-serif;
  --sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --maxw:1120px; --gutter:clamp(1rem,4vw,2.5rem); --radius:14px;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
h1,h2,h3{line-height:1.15;margin:0;font-family:var(--display);text-wrap:balance}
code{font-family:var(--mono);font-size:.9em;color:var(--amber2)}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:6px}

/* ambient: a faint grid that fades out, plus a long amber/blue wash at the top */
.bg-grid{position:fixed;inset:0;z-index:-2;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:48px 48px;opacity:.18;
  mask-image:radial-gradient(ellipse 90% 55% at 50% 0%,#000 25%,transparent 75%)}
.bg-glow{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(55% 40% at 85% -5%,rgba(245,165,36,.12),transparent 60%),
             radial-gradient(45% 40% at 5% 0%,rgba(88,166,255,.14),transparent 60%)}

/* nav */
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:1.2rem;padding:.8rem var(--gutter);
  background:rgba(11,16,32,.78);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:.55rem;font-family:var(--mono);font-size:.95rem}
.brand-dot{width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 12px var(--green)}
.brand-text b{color:var(--text);font-weight:600}
.brand-at{color:var(--amber)}
.brand-cursor{color:var(--blue);animation:blink 1.1s steps(1) infinite}
.nav-links{display:flex;gap:1.05rem;margin-left:auto;font-family:var(--mono);font-size:.82rem}
.nav-links a{color:var(--muted);transition:color .2s}
.nav-links a:hover{color:var(--text)}
.nav-links a[aria-current="page"]{color:var(--text);position:relative}
.nav-links a[aria-current="page"]::after{content:"";position:absolute;left:0;right:0;bottom:-.45rem;height:2px;background:var(--amber);border-radius:2px}
.nav-resume{font-family:var(--mono);font-size:.78rem}
.nav-toggle{display:none;background:none;border:1px solid var(--line);color:var(--text);font-size:1.3rem;border-radius:8px;padding:.1rem .5rem;cursor:pointer}

/* buttons */
.btn{display:inline-block;padding:.72rem 1.15rem;border-radius:10px;font-weight:600;font-size:.92rem;cursor:pointer;
  font-family:var(--sans);transition:transform .15s,box-shadow .2s,border-color .2s,background .2s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--amber);color:#1a1206;box-shadow:0 10px 28px rgba(245,165,36,.22)}
.btn-primary:hover{background:var(--amber2)}
.btn-ghost{border:1px solid var(--line2);color:var(--text);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}

/* hero: statement left, live topology right */
.hero{position:relative;overflow:hidden;padding:clamp(2.6rem,7vw,5.5rem) var(--gutter) 2.5rem}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:62% 50%;opacity:.5;z-index:0;pointer-events:none}
.hero-shade{position:absolute;inset:0;z-index:0;pointer-events:none;background:linear-gradient(90deg,rgba(11,16,32,.96) 0%,rgba(11,16,32,.86) 42%,rgba(11,16,32,.45) 100%),linear-gradient(180deg,rgba(11,16,32,.2),rgba(11,16,32,.95))}
.hero-inner{position:relative;z-index:1}
.hero-inner{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1.05fr .95fr;gap:2.4rem;align-items:center}
.status{font-family:var(--mono);font-size:.74rem;letter-spacing:.12em;color:var(--green);display:inline-flex;align-items:center;gap:.5rem;
  margin:0 0 1.1rem;border:1px solid var(--line);padding:.35rem .8rem;border-radius:100px;background:var(--panel)}
.pulse{width:8px;height:8px;border-radius:50%;background:var(--green);position:relative}
.pulse::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:1px solid var(--green);animation:ping 1.6s ease-out infinite}
.hero h1{font-size:clamp(2.2rem,4.6vw,3.5rem);font-weight:800;letter-spacing:-.015em;line-height:1.04;max-width:14ch}
.hero h1 span{color:var(--amber)}
.hero .role{font-family:var(--mono);color:var(--muted);font-size:clamp(.95rem,1.8vw,1.1rem);margin:.9rem 0 1.4rem;max-width:52ch}
.hero .role b{color:var(--text);font-weight:500}
.cert-chips{display:flex;flex-wrap:wrap;gap:.45rem;margin-bottom:1.5rem}
.chip{font-family:var(--mono);font-size:.72rem;padding:.3rem .65rem;border-radius:100px;border:1px solid var(--line);background:var(--panel);color:var(--muted)}
.chip-edu{border-color:rgba(88,166,255,.45);color:var(--blue)}
.hero-cta{display:flex;gap:.8rem;flex-wrap:wrap;margin-bottom:1.9rem}
.stats{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:.7rem;padding:0;margin:0}
.stats li{border:1px solid var(--line);border-radius:12px;padding:.8rem .9rem;background:var(--panel);min-width:0}
.stats b{display:block;font-family:var(--display);font-size:1.55rem;font-weight:800;color:var(--text);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.stats span{font-size:.72rem;color:var(--muted);line-height:1.3;display:block}
.loc{color:var(--dim);font-size:.85rem;margin:1rem 0 0;font-family:var(--mono)}

/* the topology panel */
.topo{position:relative;border:1px solid var(--line);border-radius:18px;background:linear-gradient(180deg,var(--panel),var(--bg2));
  box-shadow:0 30px 70px rgba(0,0,0,.45);overflow:hidden;aspect-ratio:1/0.98;max-width:100%}
.topo canvas{width:100%;height:100%;display:block}
.topo-bar{position:absolute;top:0;left:0;right:0;display:flex;align-items:center;gap:.4rem;padding:.55rem .8rem;
  border-bottom:1px solid var(--line);background:rgba(11,16,32,.55);backdrop-filter:blur(6px);font-family:var(--mono);font-size:.7rem;color:var(--dim)}
.topo-bar span{width:10px;height:10px;border-radius:50%;background:#3a4760}
.topo-bar span:nth-child(1){background:#ff5f57}.topo-bar span:nth-child(2){background:#febc2e}.topo-bar span:nth-child(3){background:#28c840}
.topo-bar em{margin-left:auto;font-style:normal}
.topo-legend{position:absolute;left:.8rem;right:.8rem;bottom:.7rem;display:flex;flex-wrap:wrap;gap:.4rem .9rem;font-family:var(--mono);font-size:.68rem;color:var(--muted)}
.topo-legend i{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:.35rem;vertical-align:middle}

/* sections */
.section{max-width:var(--maxw);margin:0 auto;padding:clamp(2.4rem,6vw,4.4rem) var(--gutter);scroll-margin-top:72px}
.section h2{font-family:var(--mono);font-size:clamp(1.15rem,2.6vw,1.55rem);margin-bottom:1.2rem;font-weight:600;letter-spacing:-.01em}
.prompt{color:var(--green)}.muted{color:var(--dim)}
.lede{color:var(--muted);max-width:68ch;font-size:1.02rem;margin:0 0 1.5rem}
.lede b{color:var(--text)}
.lede a{color:var(--blue);text-decoration:underline;text-decoration-color:rgba(88,166,255,.4)}
.small{font-size:.78rem}
.reveal{transform:translateY(12px);transition:transform .5s ease}
.reveal.in{transform:none}

/* cards: one radius, flat fills, a stripe only where it marks a lab */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem;transition:border-color .2s}
.card:hover{border-color:var(--line2)}
.card h3{font-size:1rem;margin-bottom:.85rem;display:flex;align-items:center;gap:.5rem;font-weight:700}
.card .ico{color:var(--amber);font-family:var(--mono);font-size:.95rem}
.card-p{color:var(--muted);font-size:.9rem;margin:0 0 .8rem}
.card .lab-link{display:inline-block;margin-top:.8rem;font-family:var(--mono);font-size:.8rem}
.tags{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem;padding:0;margin:0}
.tags li{font-family:var(--mono);font-size:.72rem;padding:.25rem .55rem;border-radius:7px;background:var(--panel2);border:1px solid var(--line);color:var(--muted)}
.plain{list-style:none;padding:0;margin:0;display:grid;gap:.55rem}
.plain li{padding-left:1.1rem;position:relative;color:var(--muted)}
.plain li::before{content:"▹";position:absolute;left:0;color:var(--blue)}
.plain b{color:var(--text)}

/* status board (production) */
.board{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);overflow:hidden;margin-bottom:1.2rem}
.board-head{display:grid;grid-template-columns:1fr 1.7fr auto;gap:1rem;padding:.65rem 1.1rem;border-bottom:1px solid var(--line);
  font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;color:var(--dim);text-transform:uppercase}
.row{display:grid;grid-template-columns:1fr 1.7fr auto;gap:1rem;align-items:center;padding:.8rem 1.1rem;border-bottom:1px solid var(--line)}
.row:last-child{border-bottom:0}
.row .k{display:flex;align-items:center;gap:.65rem;font-weight:600}
.dot{width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 10px rgba(46,230,166,.6);flex:none}
.row .v{color:var(--muted);font-size:.92rem}
.row .n{font-family:var(--mono);font-size:.95rem;color:var(--text);font-variant-numeric:tabular-nums;white-space:nowrap}
.board-foot{padding:.6rem 1.1rem;font-family:var(--mono);font-size:.72rem;color:var(--dim);background:var(--bg2)}

/* labs grid */
.labs-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1rem}
.lab{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem;position:relative;overflow:hidden;transition:transform .2s,border-color .2s}
.lab:hover{transform:translateY(-3px);border-color:var(--line2)}
.lab::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--amber),var(--blue))}
.lab-id{font-family:var(--mono);font-size:.7rem;color:var(--amber);letter-spacing:.1em}
.lab-id .ev{color:var(--green)}
.lab h3{font-size:1.05rem;margin:.3rem 0 .6rem;font-weight:700}
.lab p{color:var(--muted);font-size:.9rem;margin:0 0 .9rem}
.lab-tags{display:flex;flex-wrap:wrap;gap:.35rem;margin-bottom:1rem}
.lab-tags span{font-family:var(--mono);font-size:.68rem;padding:.2rem .5rem;border-radius:6px;background:var(--panel2);border:1px solid var(--line);color:var(--muted)}
.lab-foot{display:flex;align-items:center;justify-content:space-between;gap:.5rem;border-top:1px solid var(--line);padding-top:.8rem;font-family:var(--mono);font-size:.76rem}
.lab-cost{color:var(--green)}
.lab-link{color:var(--blue)}
.lab-link:hover{text-decoration:underline}
.labs-foot{margin-top:1.4rem}
.subhead{font-family:var(--mono);font-size:1.1rem;font-weight:600;margin:2.4rem 0 .5rem}
.next-labs{margin-top:.6rem}
.next-labs li{color:var(--muted);font-size:.95rem}

/* pipeline run panel: the terminal is used where a terminal belongs */
.run{border:1px solid var(--line);border-radius:var(--radius);background:#0a0f1d;overflow:hidden;margin:1.4rem 0 .4rem}
.run-bar{display:flex;align-items:center;gap:.6rem;padding:.6rem .9rem;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:.74rem;color:var(--dim);flex-wrap:wrap}
.run-bar .stage{padding:.15rem .5rem;border-radius:6px;background:var(--panel2);color:var(--muted)}
.run-bar .stage.ok{color:var(--green)}
.run-bar em{margin-left:auto;font-style:normal}
.run pre{margin:0;padding:.9rem 1rem;font-family:var(--mono);font-size:.78rem;line-height:1.55;color:var(--muted);white-space:pre-wrap;overflow-x:auto}
.run pre .ok{color:var(--green)}
.run pre .c{color:var(--dim)}

/* market bars */
.bars{display:grid;gap:.7rem;margin-top:.3rem}
.bar-row{display:flex;justify-content:space-between;font-family:var(--mono);font-size:.76rem;margin-bottom:.25rem}
.bar-row b{color:var(--text);font-weight:500}
.bar-row span{color:var(--dim);font-variant-numeric:tabular-nums}
.bar-track{height:6px;background:var(--panel2);border-radius:5px;overflow:hidden}
.bar-fill{height:100%;background:linear-gradient(90deg,var(--amber),var(--blue));border-radius:5px;transition:width .8s ease}

/* architecture diagram */
.diagram{display:flex;align-items:stretch;gap:1rem;flex-wrap:wrap;justify-content:center;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:1.5rem}
.node{flex:1;min-width:200px;text-align:center;background:var(--panel2);border:1px solid var(--line);border-radius:14px;padding:1.2rem}
.node-ico{font-size:2rem;display:block;margin-bottom:.4rem}
.node b{display:block;font-size:1rem;font-family:var(--display)}
.node small{color:var(--muted);font-size:.76rem}
.node-pi{border-color:rgba(46,230,166,.4)}
.node-aws{border-color:rgba(245,165,36,.45)}
.link{flex:1;min-width:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}
.link-label{font-family:var(--mono);font-size:.76rem;color:var(--blue);margin-bottom:.5rem}
.wire{position:relative;width:100%;height:3px;background:linear-gradient(90deg,var(--green),var(--amber));border-radius:3px;margin:.3rem 0}
.packet{position:absolute;top:50%;left:0;width:9px;height:9px;border-radius:50%;background:#fff;box-shadow:0 0 12px #fff;transform:translateY(-50%);animation:flow 2.4s linear infinite}
.link small{color:var(--dim);font-size:.72rem;margin-top:.5rem}

/* sub-page head: breadcrumb, command-style h1, lede, on-this-page links */
.page-head{max-width:var(--maxw);margin:0 auto;padding:clamp(2rem,5vw,3.4rem) var(--gutter) 0}
.page-head h1{font-family:var(--mono);font-size:clamp(1.35rem,3vw,1.9rem);font-weight:600;letter-spacing:-.01em;margin:.4rem 0 1rem}
.page-head .lede{font-size:1.06rem}
.page-head + .section{padding-top:.6rem}
.crumbs{display:flex;gap:.5rem;font-family:var(--mono);font-size:.78rem;color:var(--dim)}
.crumbs a{color:var(--blue)}
.crumbs [aria-current]{color:var(--muted)}
.subnav{display:flex;flex-wrap:wrap;gap:.4rem;margin:0 0 .4rem}
.subnav a{font-family:var(--mono);font-size:.74rem;padding:.3rem .65rem;border:1px solid var(--line);border-radius:999px;color:var(--muted);background:var(--panel);transition:.2s}
.subnav a:hover{color:var(--text);border-color:var(--line2)}
.card-link{display:block;color:inherit;transition:transform .2s,border-color .2s}
.card-link:hover{transform:translateY(-3px);border-color:var(--amber)}
.card-link .go{display:block;margin-top:.9rem;font-family:var(--mono);font-size:.78rem;color:var(--blue)}
.changelog{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.changelog li{display:grid;grid-template-columns:7.5rem 1fr;gap:1rem;padding:.8rem 0;border-bottom:1px solid var(--line);color:var(--muted);font-size:.95rem}
.changelog time{font-family:var(--mono);font-size:.8rem;color:var(--amber2);padding-top:.15rem}
.changelog a{color:var(--blue);text-decoration:underline;text-decoration-color:rgba(88,166,255,.4)}
.reach{display:flex;flex-wrap:wrap;gap:1.4rem;align-items:center;justify-content:space-between;padding:1.6rem;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
.reach h2{margin-bottom:.4rem}
.pager{font-family:var(--mono);font-size:.82rem;margin:1.6rem 0 0}
.pager a{color:var(--blue)}
.done{color:var(--green)}
.next-labs a{color:var(--blue)}

/* timeline */
.timeline{list-style:none;padding:0;margin:0;position:relative}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:var(--line)}
.timeline li{position:relative;padding:0 0 1.5rem 2.1rem}
.timeline li::before{content:"";position:absolute;left:0;top:7px;width:16px;height:16px;border-radius:50%;background:var(--bg);border:2px solid var(--amber)}
.tl-head{display:flex;flex-wrap:wrap;gap:.5rem;align-items:baseline;justify-content:space-between}
.tl-head b{font-size:1.02rem;font-family:var(--display)}
.when{font-family:var(--mono);font-size:.76rem;color:var(--blue)}
.tl-org{color:var(--muted);font-size:.9rem;margin:.1rem 0 .5rem}
.timeline ul{margin:.3rem 0 .7rem;padding-left:1.1rem;color:var(--muted)}
.timeline ul li{padding:0;margin:.2rem 0}
.timeline ul li::before{display:none}
.tl-tags{display:flex;flex-wrap:wrap;gap:.35rem}
.tl-tags span{font-family:var(--mono);font-size:.68rem;padding:.2rem .5rem;border-radius:6px;background:var(--panel2);border:1px solid var(--line);color:var(--muted)}

/* contact */
.contact{display:flex;flex-wrap:wrap;gap:.8rem;margin-bottom:1.2rem}
.contact-item{display:flex;align-items:center;gap:.6rem;font-family:var(--mono);font-size:.86rem;padding:.72rem 1rem;border:1px solid var(--line);border-radius:10px;background:var(--panel);transition:.2s}
.contact-item:hover{border-color:var(--amber);color:var(--amber2);transform:translateY(-2px)}
.contact-item span{display:inline-grid;place-items:center;width:22px;height:22px;border-radius:6px;background:var(--panel2);color:var(--blue);font-size:.8rem}
.cta-line{color:var(--muted)}.cta-line b{color:var(--text)}

/* footer */
.foot{max-width:var(--maxw);margin:0 auto;padding:2.2rem var(--gutter) 3rem;border-top:1px solid var(--line);font-family:var(--mono);font-size:.78rem;color:var(--dim)}
.foot a{color:var(--blue)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1.4fr;gap:1.5rem}
.foot-grid p{margin:.2rem 0}
.foot-grid nav{display:flex;flex-direction:column;gap:.35rem}
.foot-brand{color:var(--text);font-size:.9rem}
.foot-brand b{color:var(--amber2)}
.foot-h{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:.68rem;margin-bottom:.2rem}
.foot-note{margin:1.6rem 0 0;padding-top:1rem;border-top:1px solid var(--line);max-width:80ch}

@keyframes blink{50%{opacity:0}}
@keyframes ping{0%{transform:scale(1);opacity:.7}100%{transform:scale(2.4);opacity:0}}
@keyframes flow{0%{left:0}100%{left:100%}}

@media (max-width:900px){
  .hero-inner{grid-template-columns:1fr}
  .topo{aspect-ratio:4/3}
  .stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:760px){
  .foot-grid{grid-template-columns:1fr}
  .changelog li{grid-template-columns:1fr;gap:.2rem}
  .nav-links a[aria-current="page"]::after{display:none}
  .nav-links a[aria-current="page"]{color:var(--amber2)}
  .nav-links,.nav-resume{display:none}
  .nav-toggle{display:block}
  .nav.open .nav-links{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:var(--bg2);border-bottom:1px solid var(--line);padding:1rem;gap:.8rem}
  .diagram{flex-direction:column}
  .wire{width:3px;height:40px;margin:.3rem auto}
  .packet{animation:flowv 2.4s linear infinite}
  .board-head{display:none}
  .row{grid-template-columns:1fr;gap:.25rem}
  .row .n{font-size:.9rem}
}
@keyframes flowv{0%{top:0}100%{top:100%}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;scroll-behavior:auto}.reveal{transform:none}.hero-bg{display:none}}

/* artwork figure (architecture) — generated illustration of the real topology */
.artwork{margin:0;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--panel)}
.artwork img{display:block;width:100%;height:auto;max-width:100%}
.artwork figcaption{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:.6rem 1.2rem;padding:.9rem 1.1rem;font-family:var(--mono);font-size:.76rem;color:var(--muted);border-top:1px solid var(--line)}
.artwork figcaption span{display:flex;align-items:center;gap:.5rem}