/* bakirzanoun.de – styles */
@font-face{font-family:"Bricolage Grotesque";font-weight:700;font-display:swap;src:url(../fonts/bricolage-grotesque-latin-700-normal.woff2) format("woff2")}
@font-face{font-family:"Bricolage Grotesque";font-weight:800;font-display:swap;src:url(../fonts/bricolage-grotesque-latin-800-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-weight:400;font-display:swap;src:url(../fonts/ibm-plex-sans-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-weight:400;font-style:italic;font-display:swap;src:url(../fonts/ibm-plex-sans-latin-400-italic.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-weight:500;font-display:swap;src:url(../fonts/ibm-plex-sans-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-weight:600;font-display:swap;src:url(../fonts/ibm-plex-sans-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:"JetBrains Mono";font-weight:400;font-display:swap;src:url(../fonts/jetbrains-mono-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"JetBrains Mono";font-weight:500;font-display:swap;src:url(../fonts/jetbrains-mono-latin-500-normal.woff2) format("woff2")}

/* tokens */
:root{
  --bg:#F4F6FA; --bg-2:#ECF0F6; --surface:#FFFFFF; --sunk:#F0F3F8;
  --ink:#0A1424; --ink-2:#23344D; --muted:#56667E; --line:#DAE1EB; --line-2:#E7ECF3;
  --accent:#2358D4; --accent-ink:#FFFFFF; --accent-soft:#E7EEFC;
  --teal:#0E8F7E; --teal-soft:#E0F3EF; --warm:#B96E1F; --ok:#12805C; --bad:#C8423B; --warn:#A8690F;
  --sh-1:0 1px 2px rgba(10,20,36,.06),0 1px 1px rgba(10,20,36,.03);
  --sh-2:0 12px 32px -14px rgba(10,20,36,.20),0 2px 6px -2px rgba(10,20,36,.06);
  --sh-3:0 40px 80px -36px rgba(10,20,36,.40);
  --hi:inset 0 1px 0 rgba(255,255,255,.7);

  /* dark band: header, hero, contact */
  --band:#070E1A; --band-2:#0C1627; --band-ink:#EEF3FB; --band-muted:#9EB0C8; --band-line:rgba(255,255,255,.09);
  --band-accent:#7AA7FF; --band-teal:#4FD6C2;

  --term-bg:#08111D; --term-ink:#CFE0EE; --term-dim:#6F8698;

  --display:"Bricolage Grotesque","Segoe UI",system-ui,sans-serif;
  --body:"IBM Plex Sans","Segoe UI",system-ui,-apple-system,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  --radius:14px; --max:1160px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#060B14; --bg-2:#08101C; --surface:#0D1624; --sunk:#0A121E;
    --ink:#E8EEF7; --ink-2:#C3CFDF; --muted:#8B9BB2; --line:#1C2839; --line-2:#152031;
    --accent:#6D9DFF; --accent-ink:#06101F; --accent-soft:#122447;
    --teal:#3CCFB9; --teal-soft:#0C2A2A; --warm:#E8A560; --ok:#3FC98F; --bad:#F07167; --warn:#E3A948;
    --sh-1:0 1px 2px rgba(0,0,0,.4);
    --sh-2:0 16px 36px -16px rgba(0,0,0,.7),0 0 0 1px rgba(255,255,255,.02);
    --sh-3:0 40px 90px -40px rgba(0,0,0,.9);
    --hi:inset 0 1px 0 rgba(255,255,255,.04);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#060B14; --bg-2:#08101C; --surface:#0D1624; --sunk:#0A121E;
  --ink:#E8EEF7; --ink-2:#C3CFDF; --muted:#8B9BB2; --line:#1C2839; --line-2:#152031;
  --accent:#6D9DFF; --accent-ink:#06101F; --accent-soft:#122447;
  --teal:#3CCFB9; --teal-soft:#0C2A2A; --warm:#E8A560; --ok:#3FC98F; --bad:#F07167; --warn:#E3A948;
  --sh-1:0 1px 2px rgba(0,0,0,.4);
  --sh-2:0 16px 36px -16px rgba(0,0,0,.7),0 0 0 1px rgba(255,255,255,.02);
  --sh-3:0 40px 90px -40px rgba(0,0,0,.9);
  --hi:inset 0 1px 0 rgba(255,255,255,.04);
  color-scheme:dark;
}

/* base */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 var(--body);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
a{color:var(--accent);text-underline-offset:3px;text-decoration-thickness:1px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
[hidden]{display:none!important}
body[data-lang="de"] .en,body[data-lang="en"] .de{display:none!important}
code{font:500 .86em var(--mono);background:var(--sunk);border:1px solid var(--line-2);padding:1px 6px;border-radius:5px;color:var(--ink)}
::selection{background:color-mix(in srgb,var(--accent) 25%,transparent)}
.container{max-width:var(--max);margin:0 auto;padding-inline:20px}
.skip{position:absolute;left:-999px}
.skip:focus{left:16px;top:16px;background:var(--surface);padding:8px 12px;z-index:100}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--band) 94%,transparent);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid var(--band-line);color:var(--band-ink);padding-top:env(safe-area-inset-top,0px)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--band-ink);font:700 17px var(--display);letter-spacing:-.01em;white-space:nowrap}
.brand-avatar{width:32px;height:32px;border-radius:50%;object-fit:cover;box-shadow:0 0 0 2px var(--band),0 0 0 3.5px var(--band-accent)}
.nav-links{display:flex;gap:24px;list-style:none;margin:0;padding:0}
.nav-links a{position:relative;padding-block:6px;color:var(--band-muted);text-decoration:none;font-size:14px;font-weight:500;transition:color .2s}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--band-accent),var(--band-teal));transform:scaleX(0);transform-origin:left;transition:transform .25s}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
@media (max-width:1060px){.nav-links{gap:16px}.nav-links a{font-size:13px}}
@media (max-width:900px){.nav-links{display:none}}
.nav-tools{display:flex;align-items:center;gap:8px}
.seg{display:inline-flex;border:1px solid var(--band-line);border-radius:9px;overflow:hidden;background:rgba(255,255,255,.03)}
.seg button{font:500 12px var(--mono);border:0;background:none;color:var(--band-muted);padding:6px 10px;cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--band-ink);color:var(--band)}
.icon-btn{width:34px;height:34px;display:grid;place-items:center;border:1px solid var(--band-line);border-radius:9px;background:rgba(255,255,255,.03);color:var(--band-ink);cursor:pointer}
.icon-btn:hover{border-color:rgba(255,255,255,.25)}
.icon-btn svg{width:16px;height:16px}
.menu-btn{display:none}
@media (max-width:900px){.menu-btn{display:grid}}
.mobile-nav{border-top:1px solid var(--band-line);padding:12px 20px 18px;display:flex;flex-direction:column;gap:12px}
.mobile-nav ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:4px}
.mobile-nav ul a{display:block;padding:10px 12px;border-radius:10px;color:var(--band-ink);text-decoration:none;font-weight:500;background:rgba(255,255,255,.03)}
.mobile-nav ul a:hover{background:rgba(255,255,255,.07)}
.mobile-nav .btn{justify-content:center}
@media (min-width:901px){.mobile-nav{display:none!important}}

/* progress bar */
.progress{position:fixed;top:0;left:0;height:2px;width:100%;transform-origin:0 50%;transform:scaleX(0);background:linear-gradient(90deg,var(--band-accent),var(--band-teal));z-index:60}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font:600 15px var(--body);padding:11px 18px;border-radius:11px;text-decoration:none;border:1px solid var(--line);color:var(--ink);background:var(--surface);cursor:pointer;box-shadow:var(--sh-1),var(--hi);transition:transform .15s,border-color .2s,box-shadow .2s}
.btn:hover{border-color:color-mix(in srgb,var(--accent) 50%,var(--line));transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn svg{width:17px;height:17px}
.btn.primary{position:relative;overflow:hidden;background:linear-gradient(180deg,color-mix(in srgb,var(--accent) 88%,#fff),var(--accent));border-color:transparent;color:var(--accent-ink);box-shadow:0 10px 24px -10px color-mix(in srgb,var(--accent) 70%,transparent),inset 0 1px 0 rgba(255,255,255,.25)}
.btn.primary::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.3) 50%,transparent 70%);transform:translateX(-100%)}
.btn.primary:hover::after{transition:transform .7s;transform:translateX(100%)}

/* hero */
.hero{position:relative;overflow:hidden;isolation:isolate;padding-block:72px 128px;color:var(--band-ink);
  background:
    radial-gradient(900px 520px at 88% 0%,rgba(35,88,212,.42),transparent 60%),
    radial-gradient(720px 520px at 0% 100%,rgba(14,143,126,.26),transparent 60%),
    linear-gradient(180deg,var(--band),var(--band-2))}
.hero::before{content:"";position:absolute;inset:-40px;z-index:-1;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:44px 44px;
  -webkit-mask-image:radial-gradient(ellipse 75% 70% at 70% 35%,#000 10%,transparent 75%);mask-image:radial-gradient(ellipse 75% 70% at 70% 35%,#000 10%,transparent 75%);
  animation:gridDrift 36s linear infinite}
@keyframes gridDrift{to{transform:translate(44px,44px)}}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:center}
@media (max-width:920px){.hero-grid{grid-template-columns:1fr;gap:36px}.hero{padding-block:40px 104px}}
.status{display:inline-flex;align-items:center;gap:8px;font:500 12.5px var(--mono);color:var(--band-teal);background:rgba(79,214,194,.1);border:1px solid rgba(79,214,194,.22);padding:5px 12px;border-radius:999px}
.status::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--band-teal);box-shadow:0 0 0 0 rgba(79,214,194,.6);animation:pulse 2.2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(79,214,194,.55)}70%{box-shadow:0 0 0 8px rgba(79,214,194,0)}100%{box-shadow:0 0 0 0 rgba(79,214,194,0)}}
.hero h1{font:800 clamp(40px,6vw,70px)/.98 var(--display);letter-spacing:-.035em;margin:20px 0 20px;text-wrap:balance;color:#fff}
.hero h1 .thin{background:linear-gradient(95deg,#A9C4FF 0%,#7AA7FF 45%,#4FD6C2 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{font-size:clamp(17px,2vw,19px);color:var(--band-muted);max-width:36em;margin:0 0 22px}
.hero .lead b{font-weight:600;color:var(--band-ink)}
.roles{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0 0 26px}
.roles > span{font:500 12.5px var(--mono);padding:5px 11px;border-radius:8px;color:var(--band-ink);background:rgba(255,255,255,.05);border:1px solid var(--band-line)}
.roles > .roles-k{background:none;border:0;padding-left:0;color:var(--band-muted);text-transform:uppercase;letter-spacing:.12em;font-size:11px}
.cta-row{display:flex;flex-wrap:wrap;gap:12px}
.hero .btn:not(.primary){background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.16);color:var(--band-ink);box-shadow:none}
.hero .btn:not(.primary):hover{border-color:rgba(255,255,255,.4)}
.hero .btn.primary{background:linear-gradient(180deg,#3F74F0,#2358D4);color:#fff;box-shadow:0 14px 30px -12px rgba(63,116,240,.8),inset 0 1px 0 rgba(255,255,255,.25)}
.socials{list-style:none;margin:26px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px 22px;font:500 13.5px var(--body)}
.socials a,.socials .loc{display:inline-flex;align-items:center;gap:7px;color:var(--band-muted);text-decoration:none}
.socials a:hover{color:#fff}
.socials svg{width:17px;height:17px}

.hero-visual{position:relative;justify-self:center;width:100%;max-width:400px}
.hero-visual::before{content:"";position:absolute;inset:6% -12% -8% -12%;background:radial-gradient(closest-side,rgba(79,140,255,.35),transparent);z-index:-1;filter:blur(10px)}
.portrait{position:relative;border-radius:28px;padding:1.5px;background:linear-gradient(160deg,rgba(122,167,255,.9),rgba(255,255,255,.08) 40%,rgba(79,214,194,.8));box-shadow:0 50px 90px -40px rgba(0,0,0,.8)}
.portrait picture,.portrait img{display:block;border-radius:26.5px;overflow:hidden}
.portrait img{width:100%;aspect-ratio:4/5;height:auto;max-width:100%;object-fit:cover;object-position:50% 30%;background:var(--band-2)}
.float-chip{position:absolute;display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border-radius:12px;background:rgba(10,18,32,.72);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.12);font:500 12.5px var(--mono);color:#fff;box-shadow:0 18px 36px -18px rgba(0,0,0,.8);white-space:nowrap;animation:floaty 6s ease-in-out infinite}
.float-chip .dot{width:8px;height:8px;border-radius:50%}
.dot.ok{background:var(--band-teal)}.dot.acc{background:var(--band-accent)}.dot.warm{background:#F2B36B}
.c1{top:9%;left:-14%}.c2{top:48%;right:-16%;animation-delay:-2s}.c3{bottom:8%;left:-10%;animation-delay:-4s}
@keyframes floaty{50%{transform:translateY(-8px)}}
@media (max-width:920px){.hero-visual{max-width:280px;order:-1}.c1{left:-8%}.c2{right:-8%}.c3{left:-6%}}
@media (max-width:480px){.float-chip{font-size:11px;padding:7px 10px}.c1{left:-4%}.c2{right:-4%}.c3{left:-2%}}

.stats{list-style:none;margin:56px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--band-line);border-radius:18px;background:rgba(255,255,255,.03);backdrop-filter:blur(6px);overflow:hidden}
.stats li{padding:22px 24px;display:flex;flex-direction:column;gap:6px;border-left:1px solid var(--band-line)}
.stats li:first-child{border-left:0}
.stats b{font:800 34px/1 var(--display);letter-spacing:-.03em;color:#fff;font-variant-numeric:tabular-nums}
.stats span{color:var(--band-muted);font-size:14px}
@media (max-width:820px){.stats{grid-template-columns:1fr 1fr}.stats li:nth-child(3){border-left:0}.stats li:nth-child(n+3){border-top:1px solid var(--band-line)}}

/* at a glance */
.glance-wrap{position:relative;z-index:2;margin-top:-80px;padding-block:0 12px}
.glance{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:30px 32px;box-shadow:var(--sh-3),var(--hi);display:grid;grid-template-columns:240px 1fr;gap:18px 40px;align-items:start}
.glance::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;border-radius:22px 22px 0 0;background:linear-gradient(90deg,var(--accent),var(--teal))}
.glance-head h2{font:700 24px/1.2 var(--display);letter-spacing:-.015em;margin:6px 0 0;text-wrap:balance}
.facts-grid{margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:18px 28px}
.facts-grid div{display:flex;flex-direction:column;gap:3px;padding-left:14px;border-left:2px solid var(--line)}
.facts-grid dt{font:500 11px var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--muted)}
.facts-grid dd{margin:0;font-weight:500;font-size:15px;color:var(--ink)}
.glance-actions{grid-column:2;display:flex;flex-wrap:wrap;gap:10px;padding-top:6px}
@media (max-width:980px){.glance{grid-template-columns:1fr;padding:24px}.glance-actions{grid-column:1}.facts-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.facts-grid{grid-template-columns:1fr}}

/* sections */
section.block{padding-block:88px;position:relative}
main > section.block:nth-of-type(odd){background:var(--bg-2)}
@media (max-width:720px){section.block{padding-block:60px}}
.sec-head{display:grid;grid-template-columns:260px 1fr;gap:32px;margin-bottom:44px}
@media (max-width:820px){.sec-head{grid-template-columns:1fr;gap:10px;margin-bottom:28px}}
.eyebrow{display:flex;align-items:center;gap:10px;font:500 12px var(--mono);text-transform:uppercase;letter-spacing:.14em;color:var(--accent);margin:6px 0 0}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--accent),var(--teal))}
.sec-head h2{font:700 clamp(28px,3.6vw,40px)/1.1 var(--display);letter-spacing:-.022em;margin:0 0 12px;text-wrap:balance}
.sec-head p{margin:0;color:var(--muted);max-width:62ch}

/* principles */
.principles{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media (max-width:720px){.principles{grid-template-columns:1fr}}
.pr{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;gap:10px;box-shadow:var(--sh-1),var(--hi);transition:transform .25s,box-shadow .25s,border-color .25s;overflow:hidden}
.pr::after{content:"";position:absolute;right:-60px;top:-60px;width:160px;height:160px;border-radius:50%;background:radial-gradient(closest-side,color-mix(in srgb,var(--accent) 14%,transparent),transparent);opacity:0;transition:opacity .3s}
.pr:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:color-mix(in srgb,var(--accent) 35%,var(--line))}
.pr:hover::after{opacity:1}
.pr .step{font:500 12px var(--mono);color:var(--accent)}
.pr h3{font:700 21px/1.25 var(--display);margin:0;letter-spacing:-.01em}
.pr p{margin:0;color:var(--muted);font-size:15.5px}

/* diagrams */
.diagram{margin:0 0 20px;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:28px;display:flex;flex-direction:column;gap:20px;box-shadow:var(--sh-2),var(--hi)}
@media (max-width:720px){.diagram{padding:18px}}
.diagram figcaption{display:flex;flex-direction:column;gap:4px}
.kind{font:500 11.5px var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--accent)}
.diagram figcaption strong{font:700 22px/1.25 var(--display);letter-spacing:-.01em}
.diagram .muted{color:var(--muted);font-size:14px}
.diagram-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin-inline:-4px;padding:4px}
.pipe-svg{display:block;width:100%;min-width:760px;height:auto}
.d-frame{fill:var(--sunk);stroke:var(--line);stroke-width:1;stroke-dasharray:5 5}
.d-box{fill:var(--surface);stroke:var(--line);stroke-width:1.4}
.d-acc{fill:var(--accent-soft);stroke:var(--accent)}
.d-ok{fill:var(--teal-soft);stroke:var(--teal)}
.d-bad{fill:color-mix(in srgb,var(--bad) 10%,var(--surface));stroke:var(--bad)}
.d-t{fill:var(--ink);font:600 14px var(--body);text-anchor:middle}
.d-s{fill:var(--muted);font:400 11.5px var(--mono);text-anchor:middle}
.d-label{fill:var(--muted);font:500 11px var(--mono);letter-spacing:.08em;text-transform:uppercase}
.d-line{stroke:var(--muted);stroke-width:1.6}
.d-arrowhead{fill:var(--muted)}
.d-okline{stroke:var(--teal)} .d-oktext{fill:var(--teal)}
.d-badline{stroke:var(--bad)} .d-bad-fill{fill:var(--bad)} .d-badtext{fill:var(--bad)}
.d-accline{stroke:var(--accent)} .d-acc-fill{fill:var(--accent)}
.d-dash{stroke-dasharray:5 4;animation:march 1.2s linear infinite}
@keyframes march{to{stroke-dashoffset:-18}}
.pkt-core{fill:var(--accent)}
.pkt-halo{fill:var(--accent);opacity:.25;animation:halo 1.2s ease-in-out infinite}
@keyframes halo{50%{opacity:.05}}
.glow{fill:none;stroke:var(--accent);stroke-width:3;opacity:0;animation:glow 7s linear infinite;animation-delay:var(--d,0s)}
.glow-ok{stroke:var(--teal)}
@keyframes glow{0%{opacity:1}14%{opacity:0}100%{opacity:0}}
.diagram:not(.play) .glow,.diagram:not(.play) .d-dash,.diagram:not(.play) .pkt-halo,.diagram:not(.play) .node::before{animation-play-state:paused}
.legend{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:7px;font-size:15px;color:var(--muted);max-width:82ch}
.legend b{color:var(--ink);font-weight:600}

/* terminal */
.term-wrap{margin-top:4px}
.term{background:var(--term-bg);color:var(--term-ink);border-radius:14px;overflow:hidden;font:13px/1.7 var(--mono);border:1px solid rgba(255,255,255,.06)}
.term-bar{display:flex;align-items:center;gap:7px;padding:11px 16px;border-bottom:1px solid rgba(255,255,255,.07)}
.term-bar i{width:11px;height:11px;border-radius:50%;background:#2A3A48}
.term-bar i:nth-child(1){background:#E0625A}.term-bar i:nth-child(2){background:#E3B341}.term-bar i:nth-child(3){background:#3FB950}
.term-bar span{margin-left:auto;color:var(--term-dim);font-size:12px}
.term-body{padding:16px 18px 18px;overflow-x:auto}
.term-line{white-space:pre}
.term .dim{color:var(--term-dim)}.term .ok{color:#4BC389}.term .acc{color:#7DB8F2}.term .warn{color:#E8B04F}
.term-line.pending{opacity:0}
.term-line.show{animation:lineIn .25s ease-out forwards}
@keyframes lineIn{from{opacity:0;transform:translateY(3px)}to{opacity:1;transform:none}}
.stages{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;margin-top:14px}
.st{border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:7px 8px;font-size:11px;color:var(--term-dim);display:flex;flex-direction:column;gap:2px}
.st b{color:var(--term-ink);font-weight:500;font-size:12px}
.st.done{border-color:rgba(75,195,137,.45)}.st.done em{color:#4BC389}
.st.sec{border-color:rgba(125,184,242,.6);background:rgba(125,184,242,.08)}
.st em{font-style:normal}
@media (max-width:480px){.stages{grid-template-columns:repeat(3,1fr)}}

/* sensor flow */
.flow{display:grid;grid-template-columns:repeat(6,1fr);gap:22px}
@media (max-width:980px){.flow{grid-template-columns:repeat(3,1fr)}}
@media (max-width:560px){.flow{grid-template-columns:1fr}}
.node{position:relative;border:1.4px solid var(--line);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:3px;background:var(--surface);transition:transform .2s,border-color .2s}
.node:hover{transform:translateY(-3px);border-color:var(--accent)}
.node b{font-weight:600;font-size:15px}
.node small{color:var(--muted);font-size:12.5px}
.node code{font-size:11.5px;padding:0 4px}
.node .n-k{font:500 11px var(--mono);color:var(--muted)}
.node.acc{border-color:var(--accent);background:var(--accent-soft)}
.node.ok{border-color:var(--teal);background:var(--teal-soft)}
.node:not(:last-child)::after{content:"→";position:absolute;right:-18px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:15px}
.node:not(:last-child)::before{content:"";position:absolute;right:-15px;top:calc(50% - 12px);width:6px;height:6px;border-radius:50%;background:var(--accent);opacity:0;animation:hop 3s ease-in-out infinite;animation-delay:calc(var(--n,0) * .5s)}
.node:nth-child(1){--n:0}.node:nth-child(2){--n:1}.node:nth-child(3){--n:2}.node:nth-child(4){--n:3}.node:nth-child(5){--n:4}
@keyframes hop{0%{opacity:0;transform:translateX(-8px)}15%{opacity:1}35%{opacity:1;transform:translateX(8px)}45%,100%{opacity:0;transform:translateX(8px)}}
@media (max-width:980px){.node:nth-child(3n)::after,.node:nth-child(3n)::before{content:none}}
@media (max-width:560px){
  .node:not(:last-child)::after{content:"↓";right:auto;left:50%;top:auto;bottom:-20px;transform:translateX(-50%)}
  .node:not(:last-child)::before{right:auto;left:calc(50% + 10px);top:auto;bottom:-16px;animation-name:hopDown}
}
@keyframes hopDown{0%{opacity:0;transform:translateY(-6px)}15%{opacity:1}35%{opacity:1;transform:translateY(6px)}45%,100%{opacity:0}}

/* hardware */
.boards{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
@media (max-width:1080px){.boards{grid-template-columns:repeat(3,1fr)}}
@media (max-width:720px){.boards{grid-template-columns:1fr 1fr}}
@media (max-width:460px){.boards{grid-template-columns:1fr}}
.board{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px 20px 20px;display:flex;flex-direction:column;gap:10px;overflow:hidden;box-shadow:var(--sh-1),var(--hi);transition:transform .25s,border-color .25s,box-shadow .25s}
.board::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:linear-gradient(90deg,var(--accent),var(--teal),transparent)}
.board:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--accent) 45%,var(--line));box-shadow:var(--sh-2)}
.b-tag{font:500 11px var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--teal)}
.board h3{font:700 19px/1.2 var(--display);margin:0;letter-spacing:-.01em}
.board p{margin:0;font-size:14.5px;color:var(--muted)}
.board .chips{margin-top:auto;padding-top:6px}
.proto-strip{margin-top:18px;display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 18px;border:1px dashed var(--line);border-radius:14px;font:500 13px var(--mono);background:var(--surface)}
.proto-strip > span{padding:4px 10px;border-radius:999px;background:var(--accent-soft);color:var(--ink)}
.proto-strip > .ps-k{background:none;padding-left:0;color:var(--muted);text-transform:uppercase;letter-spacing:.1em;font-size:11.5px}

/* projects */
.projects{display:flex;flex-direction:column;gap:20px}
.case{position:relative;display:grid;grid-template-columns:260px 1fr;gap:32px;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:30px;box-shadow:var(--sh-1),var(--hi);transition:box-shadow .25s,border-color .25s}
.case:hover{box-shadow:var(--sh-2);border-color:color-mix(in srgb,var(--accent) 35%,var(--line))}
@media (max-width:820px){.case{grid-template-columns:1fr;gap:16px;padding:22px}}
.case-side{display:flex;flex-direction:column;gap:12px}
.case h3{font:700 22px/1.25 var(--display);margin:0;letter-spacing:-.01em;text-wrap:balance}
.case .orig{font-style:italic;color:var(--muted);font-size:14px;margin:6px 0 0}
.case dl{margin:0;display:grid;grid-template-columns:120px 1fr;gap:12px 20px}
@media (max-width:520px){.case dl{grid-template-columns:1fr;gap:2px}.case dd{margin-bottom:12px!important}}
.case dt{font:500 12px/1.9 var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--accent)}
.case dd{margin:0;font-size:15.5px;color:var(--ink-2)}
.case dd b{color:var(--ink)}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{font:500 12px var(--mono);padding:3px 9px;border-radius:7px;background:var(--accent-soft);color:var(--ink);border:1px solid color-mix(in srgb,var(--accent) 14%,transparent)}
.chip.plain{background:var(--sunk);border-color:var(--line-2)}
.gh-cta{display:flex;align-items:center;gap:18px;padding:22px 26px;border-radius:18px;text-decoration:none;color:var(--ink);background:linear-gradient(120deg,var(--surface),var(--accent-soft));border:1px solid var(--line);box-shadow:var(--sh-1),var(--hi);transition:transform .2s,box-shadow .2s}
.gh-cta:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.gh-cta > svg{width:34px;height:34px;flex:none}
.gh-cta div{display:flex;flex-direction:column;gap:2px}
.gh-cta b{font:700 18px var(--display)}
.gh-cta div > span{color:var(--muted);font-size:14.5px}
.gh-arrow{margin-left:auto;font-size:20px;color:var(--accent)}

/* timeline */
.tl{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;position:relative}
.tl > li{display:grid;grid-template-columns:260px 1fr;gap:32px;padding:24px 0;border-bottom:1px dashed var(--line);position:relative}
.tl > li:last-child{border-bottom:0}
@media (max-width:820px){.tl > li{grid-template-columns:1fr;gap:6px}}
.when{font:500 13px var(--mono);color:var(--muted);font-variant-numeric:tabular-nums;display:flex;flex-direction:column;gap:2px}
.when .badge{align-self:flex-start;font-size:11px;padding:2px 9px;border-radius:999px;background:var(--teal-soft);color:var(--teal);margin-top:6px}
.tl h3{font:600 18px/1.35 var(--body);margin:0}
.tl .org{color:var(--muted);margin:2px 0 8px;font-size:15px}
.tl ul{margin:0;padding-left:18px;display:flex;flex-direction:column;gap:5px;font-size:15.5px;max-width:70ch;color:var(--ink-2)}
.tl ul li::marker{color:var(--accent)}

/* skills */
.skills{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px}
.sk{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:flex;flex-direction:column;gap:12px;box-shadow:var(--sh-1),var(--hi);transition:transform .2s,box-shadow .2s,border-color .2s}
.sk:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:color-mix(in srgb,var(--accent) 35%,var(--line))}
.sk h3{font:600 16px var(--body);margin:0}
.sk p{margin:0;font-size:14px;color:var(--muted)}
.langs{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin-top:28px}
.lang{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:var(--surface);box-shadow:var(--sh-1)}
.lang small{display:block;color:var(--muted);font-size:13px}
.bars{display:flex;gap:3px}
.bars i{width:8px;height:18px;border-radius:2px;background:var(--line)}
.bars i.on{background:linear-gradient(180deg,var(--accent),var(--teal))}

/* contact */
.contact-card{position:relative;overflow:hidden;isolation:isolate;border-radius:24px;padding:clamp(28px,5vw,56px);display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center;color:var(--band-ink);
  background:radial-gradient(600px 400px at 100% 0%,rgba(35,88,212,.45),transparent 60%),radial-gradient(500px 400px at 0% 100%,rgba(14,143,126,.28),transparent 60%),var(--band);box-shadow:var(--sh-3)}
@media (max-width:820px){.contact-card{grid-template-columns:1fr}}
.contact-card h2{font:800 clamp(30px,4.4vw,48px)/1.05 var(--display);letter-spacing:-.03em;margin:0 0 14px;text-wrap:balance;color:#fff}
.contact-card p{margin:0;color:var(--band-muted);max-width:46ch}
.contact-list{display:flex;flex-direction:column;gap:12px}
.cl{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border:1px solid var(--band-line);border-radius:12px;color:var(--band-ink);text-decoration:none;flex-wrap:wrap;background:rgba(255,255,255,.03);transition:border-color .2s,background .2s}
.cl:hover{border-color:rgba(255,255,255,.3);background:rgba(255,255,255,.06)}
.cl .k{font:500 11.5px var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--band-muted)}
.cl .v{font-weight:500;word-break:break-all;color:#fff}
.copy{font:500 12px var(--mono);border:1px solid rgba(255,255,255,.25);background:transparent;color:#fff;padding:4px 10px;border-radius:7px;cursor:pointer}

/* footer */
.site-footer{padding-block:32px 40px;font:400 13px var(--mono);color:var(--muted);border-top:1px solid var(--line)}
.site-footer .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
.site-footer a{color:var(--muted)}

/* motion */
.js .intro{animation:introUp .7s cubic-bezier(.2,.7,.2,1) both;animation-delay:calc(var(--i,0) * 110ms + 80ms)}
@keyframes introUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.reveal{transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.2,1)}
.js .reveal.pre{opacity:.001;transform:translateY(16px)}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .progress{display:none}
}
@media print{.site-header,.cta-row,.nav-tools,.term,.hero::before{display:none}body{background:#fff;color:#000}}