:root{
  --bg:#ABB0AC;
  --cream:#F6F2E7;
  --ink:#23262A;
  --ink-soft:#3E4245;
  --ink-faint:#5F6461;
  --line:#969B97;
  --line-strong:#7E837F;
  --green:#0E6B45;
  --green-bright:#2FBE7A;
  --font-display:"Bricolage Grotesque",sans-serif;
  --font-body:"Instrument Sans",sans-serif;
  --font-mono:"IBM Plex Mono",monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--green);color:var(--cream)}

/* language toggle */
html[lang="en"] .tr{display:none!important}
html[lang="tr"] .en{display:none!important}

a{color:inherit}
:focus-visible{outline:2px solid var(--green);outline-offset:3px;border-radius:2px}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:100;
  background:var(--ink);color:var(--cream);
  font-family:var(--font-mono);font-size:12px;
  padding:8px 14px;text-decoration:none;
}
.skip-link:focus{left:8px;top:8px}

/* ============ layout ============ */
.layout{
  display:flex;
  max-width:1240px;
  margin:0 auto;
}

/* ============ rail ============ */
.rail{
  width:240px;
  flex:0 0 240px;
  position:sticky;
  top:0;
  height:100vh;
  height:100dvh;
  display:flex;
  flex-direction:column;
  gap:28px;
  padding:36px 24px 28px;
  border-right:1px solid var(--line-strong);
}
.rail-name{
  font-family:var(--font-display);
  font-weight:800;
  font-size:19px;
  letter-spacing:-0.03em;
  line-height:1.15;
  text-decoration:none;
}
.rail-handle{
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--ink-faint);
  margin-top:4px;
}
.rail-nav{display:flex;flex-direction:column;gap:2px}
.rail-nav a{
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--ink-soft);
  text-decoration:none;
  padding:7px 10px;
  border-left:2px solid transparent;
  transition:color .15s,border-color .15s,background .15s;
}
.rail-nav a:hover{color:var(--ink);background:rgba(246,242,231,.35)}
.rail-nav a.active{
  color:var(--green);
  border-left-color:var(--green);
  background:rgba(246,242,231,.45);
}
.rail-nav a .idx{color:var(--line-strong);margin-right:8px}
.rail-nav a.active .idx{color:var(--green)}
.rail-spacer{flex:1}
.rail-lang{
  display:inline-flex;
  border:1px solid var(--line-strong);
  align-self:flex-start;
}
.rail-lang button{
  font-family:var(--font-mono);
  font-size:11px;
  background:none;
  border:0;
  color:var(--ink-faint);
  padding:6px 12px;
  cursor:pointer;
}
.rail-lang button[aria-pressed="true"]{
  background:var(--ink);
  color:var(--cream);
}
.rail-status{
  border-top:1px solid var(--line);
  padding-top:18px;
  display:flex;
  gap:10px;
  align-items:flex-start;
}
.beacon{
  position:relative;
  width:9px;height:9px;
  border-radius:50%;
  background:var(--green-bright);
  flex:0 0 9px;
  margin-top:4px;
}
.beacon::after{
  content:"";
  position:absolute;inset:-4px;
  border-radius:50%;
  border:1px solid var(--green-bright);
  animation:ping 2.2s cubic-bezier(0,0,.2,1) infinite;
}
@keyframes ping{
  0%{transform:scale(.5);opacity:.9}
  80%,100%{transform:scale(1.6);opacity:0}
}
.rail-status p{
  font-family:var(--font-mono);
  font-size:10.5px;
  line-height:1.55;
  color:var(--ink-soft);
}

/* ============ main ============ */
main{
  flex:1;
  min-width:0;
  padding:0 48px 0 56px;
}
section{padding:88px 0 8px}
section:first-of-type{padding-top:72px}

.sec-head{
  display:flex;
  align-items:center;
  gap:16px;
  margin-bottom:40px;
}
.sec-head .tag{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.06em;
  color:var(--green);
  white-space:nowrap;
}
.sec-head .rule{flex:1;height:1px;background:var(--line)}

/* ============ hero ============ */
.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--ink-faint);
  margin-bottom:22px;
}
h1{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(36px,5.4vw,62px);
  letter-spacing:-0.045em;
  line-height:1.03;
  max-width:16ch;
}
h1 em{font-style:normal;color:var(--green)}
.hero-sub{
  margin-top:24px;
  max-width:54ch;
  color:var(--ink-soft);
  font-size:17px;
}
.hero-cta{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
.btn{
  font-family:var(--font-mono);
  font-size:12.5px;
  text-decoration:none;
  padding:12px 22px;
  border:1px solid var(--ink);
  transition:background .15s,color .15s,border-color .15s;
}
.btn-primary{background:var(--ink);color:var(--cream)}
.btn-primary:hover{background:var(--green);border-color:var(--green)}
.btn-ghost{color:var(--ink)}
.btn-ghost:hover{background:rgba(246,242,231,.55)}

/* ============ topology panel ============ */
.topo{
  margin-top:56px;
  background:var(--cream);
  border:1px solid var(--line-strong);
}
.topo-bar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  padding:11px 16px;
  border-bottom:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--ink-faint);
  flex-wrap:wrap;
}
.topo-bar .op{color:var(--green);white-space:nowrap}
.topo-bar .op .dot{
  display:inline-block;width:7px;height:7px;border-radius:50%;
  background:var(--green-bright);margin:0 5px 0 2px;
  animation:blink 2s ease-in-out infinite;
}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.35}}
.topo svg{display:block;width:100%;height:auto}

.node-box{fill:#FCFAF3;stroke:var(--line-strong);stroke-width:1}
.node-box.hot{stroke:var(--green)}
.node-name{
  font-family:var(--font-body);
  font-weight:600;font-size:13px;
  fill:var(--ink);
}
.node-sub{
  font-family:var(--font-mono);
  font-size:8.5px;letter-spacing:.04em;
  fill:var(--ink-faint);
}
.wire{
  fill:none;
  stroke:var(--line-strong);
  stroke-width:1.4;
  stroke-dasharray:1;
  stroke-dashoffset:1;
  animation:draw 1.1s ease forwards;
}
.wire:nth-of-type(1){animation-delay:.15s}
.wire:nth-of-type(2){animation-delay:.4s}
.wire:nth-of-type(3){animation-delay:.65s}
.wire:nth-of-type(4){animation-delay:.8s}
.wire:nth-of-type(5){animation-delay:.95s}
.wire:nth-of-type(6){animation-delay:1.1s}
@keyframes draw{to{stroke-dashoffset:0}}
.pulse{fill:var(--green-bright)}

@media (prefers-reduced-motion:reduce){
  .wire{animation:none;stroke-dashoffset:0}
  .beacon::after,.topo-bar .op .dot,.m-dot{animation:none}
}

/* ============ experience ============ */
.xp-entry{
  display:grid;
  grid-template-columns:180px 1fr;
  gap:32px;
  padding:30px 0;
  border-bottom:1px solid var(--line);
}
.xp-entry:first-of-type{padding-top:4px}
.xp-meta{
  font-family:var(--font-mono);
  font-size:11.5px;
  line-height:1.9;
  color:var(--ink-faint);
}
.xp-meta .xp-id{color:var(--green)}
.xp-body h3{
  font-family:var(--font-display);
  font-weight:700;
  font-size:20px;
  letter-spacing:-0.025em;
  line-height:1.2;
}
.xp-body h3 .co{color:var(--green)}
.xp-body .hl{margin-top:14px}

/* ============ projects ============ */
.project{
  background:var(--cream);
  border:1px solid var(--line-strong);
  display:grid;
  grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);
  margin-bottom:28px;
}
.project-info{padding:32px 36px 34px}
.p-kicker{
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--ink-faint);
  margin-bottom:14px;
}
.project h3{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(24px,2.6vw,32px);
  letter-spacing:-0.035em;
  line-height:1.1;
}
.project h3 a{text-decoration:none}
.project h3 a:hover{color:var(--green)}
.project h3 .ext{font-size:.6em;color:var(--green);vertical-align:super}
.project-info>p{
  margin-top:14px;
  color:var(--ink-soft);
  font-size:15px;
  max-width:52ch;
}
.hl{list-style:none;margin-top:20px;display:flex;flex-direction:column;gap:9px}
.hl li{
  display:flex;gap:10px;
  font-size:14px;color:var(--ink-soft);
}
.hl li::before{
  content:"→";
  font-family:var(--font-mono);
  color:var(--green);
  flex:0 0 auto;
}
.manifest{
  border-left:1px solid var(--line);
  padding:24px 28px;
  display:flex;
  flex-direction:column;
}
.manifest-title{
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--ink-faint);
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
  margin-bottom:4px;
}
.manifest dl{font-family:var(--font-mono);font-size:11.5px}
.manifest .row{
  display:grid;
  grid-template-columns:88px 1fr;
  gap:12px;
  padding:9px 0;
  border-bottom:1px dashed var(--line);
}
.manifest .row:last-child{border-bottom:0}
.manifest dt{color:var(--ink-faint)}
.manifest dd{color:var(--ink);overflow-wrap:break-word}
.m-active{color:var(--green)!important}
.m-dot{
  display:inline-block;width:7px;height:7px;border-radius:50%;
  background:var(--green-bright);margin-right:6px;
  animation:blink 2s ease-in-out infinite;
}
.manifest a{color:var(--green);text-decoration:none}
.manifest a:hover{text-decoration:underline}

/* ============ mini projects ============ */
.minis{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px;
}
.mini{
  background:var(--cream);
  border:1px solid var(--line-strong);
  padding:26px 28px 28px;
  display:flex;
  flex-direction:column;
}
.mini h3{
  font-family:var(--font-display);
  font-weight:700;
  font-size:20px;
  letter-spacing:-0.025em;
}
.mini>p{
  margin-top:10px;
  font-size:14px;
  color:var(--ink-soft);
  flex:1;
}
.mini dl{
  margin-top:18px;
  padding-top:12px;
  border-top:1px dashed var(--line);
  font-family:var(--font-mono);
  font-size:11px;
}
.mini .row{
  display:grid;
  grid-template-columns:74px 1fr;
  gap:10px;
  padding:5px 0;
}
.mini dt{color:var(--ink-faint)}
.mini dd{color:var(--ink)}

/* ============ capabilities ============ */
.lang-strip{
  display:flex;
  justify-content:space-between;
  gap:10px 24px;
  flex-wrap:wrap;
  border:1px solid var(--line-strong);
  border-bottom:0;
  background:rgba(246,242,231,.4);
  padding:12px 18px;
  font-family:var(--font-mono);
  font-size:11.5px;
  color:var(--ink-soft);
}
.lang-strip b{font-weight:500;color:var(--green)}
.caps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border:1px solid var(--line-strong);
  background:var(--line-strong);
  gap:1px;
}
.cap{
  background:var(--bg);
  padding:26px 24px 30px;
}
.cap h3{
  font-family:var(--font-display);
  font-weight:700;
  font-size:16px;
  letter-spacing:-0.02em;
  margin-bottom:6px;
}
.cap .cap-id{
  font-family:var(--font-mono);
  font-size:10.5px;
  color:var(--green);
  margin-bottom:16px;
}
.cap ul{list-style:none;display:flex;flex-direction:column;gap:7px}
.cap li{
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--green);
  padding-left:14px;
  position:relative;
}
.cap li::before{
  content:"·";
  position:absolute;left:0;
  color:var(--line-strong);
}

/* ============ contact ============ */
.contact{
  background:var(--cream);
  border:1px solid var(--line-strong);
  padding:52px 48px;
}
.contact .c-tag{
  font-family:var(--font-mono);
  font-size:11.5px;
  color:var(--green);
  margin-bottom:18px;
}
.contact h2{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(28px,3.6vw,44px);
  letter-spacing:-0.04em;
  line-height:1.05;
  max-width:18ch;
}
.contact p{
  margin-top:16px;
  color:var(--ink-soft);
  max-width:50ch;
  font-size:15.5px;
}
.contact .hero-cta{margin-top:30px}
.btn-green{background:var(--green);border-color:var(--green);color:var(--cream)}
.btn-green:hover{background:var(--ink);border-color:var(--ink)}
.contact .meta{
  margin-top:34px;
  padding-top:18px;
  border-top:1px dashed var(--line);
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--ink-faint);
}

/* ============ footer ============ */
footer{
  margin-top:88px;
  border-top:1px solid var(--line-strong);
  padding:22px 0 40px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--ink-faint);
}

/* ============ reveal ============ */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none}
}

/* ============ responsive ============ */
@media (max-width:940px){
  .project{grid-template-columns:1fr}
  .manifest{border-left:0;border-top:1px solid var(--line)}
  .caps{grid-template-columns:1fr}
  .minis{grid-template-columns:1fr}
  .xp-entry{grid-template-columns:1fr;gap:12px}
  .xp-meta{line-height:1.7}
}
@media (max-width:820px){
  .layout{flex-direction:column}
  .rail{
    width:100%;flex:none;
    height:auto;
    flex-direction:row;
    align-items:center;
    gap:14px;
    padding:12px 20px;
    border-right:0;
    border-bottom:1px solid var(--line-strong);
    background:rgba(171,176,172,.82);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    z-index:50;
  }
  .rail-id{display:flex;flex-direction:column;flex:0 0 auto}
  .rail-name{font-size:15px}
  .rail-handle{margin-top:0;font-size:10px}
  .rail-nav{
    flex-direction:row;
    gap:0;
    overflow-x:auto;
    scrollbar-width:none;
  }
  .rail-nav::-webkit-scrollbar{display:none}
  .rail-nav a{border-left:0;border-bottom:2px solid transparent;padding:6px 9px;white-space:nowrap}
  .rail-nav a.active{border-left:0;border-bottom-color:var(--green);background:none}
  .rail-nav a .idx{display:none}
  .rail-spacer{display:none}
  .rail-status{border-top:0;padding-top:0;margin-left:auto;align-items:center}
  .rail-status p{display:none}
  .beacon{margin-top:0}
  .rail-lang{align-self:center}
  main{padding:0 20px}
  section{padding:64px 0 8px}
  .project-info{padding:26px 22px 28px}
  .manifest{padding:20px 22px}
  .contact{padding:36px 24px}
}