@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Space+Mono:wght@400;700&display=swap');

:root{
  --bg:#090c11;
  --bg-soft:#0d1218;
  --panel:#10161e;
  --panel-2:#151d27;
  --text:#eef4f7;
  --muted:#8995a3;
  --line:#263241;
  --green:#9dff65;
  --green-dark:#355823;
  --cyan:#65e7ff;
  --blue:#72a7ff;
  --amber:#ffd36a;
  --shadow:#020306;
  --mono:'Space Mono',monospace;
  --sans:'DM Sans',system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);overflow-x:hidden}
body.arcade-open{overflow:hidden}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{color:inherit}
::selection{background:var(--green);color:#091006}

body:before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(circle at 78% 14%,rgba(101,231,255,.09),transparent 28%),
    radial-gradient(circle at 18% 78%,rgba(157,255,101,.055),transparent 27%),
    linear-gradient(115deg,rgba(255,255,255,.012),transparent 40%);
  z-index:-3;
}

body:after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:-2;
  background-image:
    linear-gradient(rgba(255,255,255,.017) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.017) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.6),transparent 70%);
}

.noise{
  position:fixed;
  inset:0;
  opacity:.026;
  pointer-events:none;
  z-index:20;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.65'/%3E%3C/svg%3E");
}

.scanlines{
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:19;
  opacity:.055;
  background:repeating-linear-gradient(to bottom,transparent 0,transparent 3px,#000 4px);
}

.topbar{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:30;
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:0 5vw;
  background:rgba(9,12,17,.79);
  backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,.065);
}

.brand{font:700 18px var(--mono);letter-spacing:-.04em}
.brand-prompt{color:var(--green);text-shadow:0 0 16px rgba(157,255,101,.45)}
.blink{animation:blink 1s steps(1) infinite;color:var(--green)}
@keyframes blink{50%{opacity:0}}

.topbar nav{display:flex;gap:26px;font:400 12px var(--mono);color:var(--muted)}
.topbar nav a{position:relative;padding:8px 0}
.topbar nav a:after{content:"";position:absolute;left:0;bottom:2px;width:0;height:1px;background:var(--green);transition:width .18s ease}
.topbar nav a:hover{color:var(--green)}
.topbar nav a:hover:after{width:100%}

.topbar-play{
  display:flex;
  align-items:center;
  gap:8px;
  font:700 10px var(--mono);
  letter-spacing:.08em;
  text-transform:uppercase;
  color:#bec9d4;
  border:1px solid var(--line);
  padding:8px 10px;
  background:rgba(255,255,255,.025);
}
.topbar-play span{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green)}
.topbar-play:hover{border-color:#475668;color:#fff}

main{max-width:1440px;margin:auto}
.section{padding:130px 7vw;border-bottom:1px solid var(--line);position:relative}

.hero{
  min-height:100vh;
  padding-top:145px;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:5vw;
  align-items:center;
  overflow:hidden;
}
.hero:before{
  content:"PLAYER // 01";
  position:absolute;
  right:7vw;
  top:105px;
  font:700 9px var(--mono);
  letter-spacing:.2em;
  color:#394552;
}

.eyebrow{
  font:700 11px var(--mono);
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:24px;
}
.status-dot{
  display:inline-block;
  width:8px;
  height:8px;
  background:var(--green);
  box-shadow:0 0 13px var(--green);
  border-radius:50%;
  margin-right:8px;
}

.hero h1{
  font-size:clamp(62px,7.8vw,124px);
  line-height:.82;
  letter-spacing:-.072em;
  margin:0;
  max-width:830px;
}
.hero h1 span{
  color:transparent;
  -webkit-text-stroke:1.4px #cfd8e1;
  text-shadow:0 0 35px rgba(114,167,255,.045);
}

.lead{
  font-size:clamp(18px,1.65vw,25px);
  line-height:1.52;
  color:#b7c0ca;
  max-width:720px;
  margin:32px 0;
}

.hero-tags,.interest-cloud{display:flex;flex-wrap:wrap;gap:8px}
.hero-tags span,.interest-cloud span{
  border:1px solid var(--line);
  padding:8px 11px;
  font:400 11px var(--mono);
  color:#aab6c3;
  background:rgba(255,255,255,.02);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.008);
}
.hero-tags span:first-child{border-color:rgba(157,255,101,.35);color:#caffad}

.hero-actions{display:flex;gap:12px;margin-top:34px;flex-wrap:wrap}
.btn{
  border:1px solid var(--line);
  padding:13px 18px;
  font:700 12px var(--mono);
  transition:transform .18s ease,border-color .18s ease,background .18s ease;
  position:relative;
  overflow:hidden;
}
.btn:hover{transform:translateY(-2px);border-color:#506070;background:#101721}
.btn.primary{background:var(--green);color:#071006;border-color:var(--green);box-shadow:5px 5px 0 var(--green-dark)}
.btn.primary:hover{background:#b0ff82;box-shadow:3px 3px 0 var(--green-dark)}

.arcade-hint{
  margin:30px 0 0;
  max-width:540px;
  color:#708090;
  font:10px/1.7 var(--mono);
  text-transform:uppercase;
  letter-spacing:.05em;
}
.pixel-key{display:inline-block;background:#1b252f;color:var(--amber);border:1px solid #3a4652;padding:3px 6px;margin-right:7px;box-shadow:2px 2px 0 #020306}

.hero-art{position:relative}
.pixel-window{
  border:1px solid #3b4858;
  background:#080b10;
  box-shadow:18px 18px 0 rgba(0,0,0,.3),0 0 0 1px rgba(255,255,255,.02);
  max-width:570px;
  margin-left:auto;
  position:relative;
}
.pixel-window:after{
  content:"";
  position:absolute;
  inset:7px -8px -8px 7px;
  border-right:1px solid rgba(157,255,101,.13);
  border-bottom:1px solid rgba(157,255,101,.13);
  pointer-events:none;
  z-index:-1;
}

.window-bar,.terminal-bar{
  height:35px;
  border-bottom:1px solid #303846;
  display:flex;
  align-items:center;
  gap:10px;
  padding:0 12px;
  background:#111620;
}
.window-dots{display:flex;gap:7px}
.window-dots span,.terminal-bar>span{width:7px;height:7px;border:1px solid #657080}
.window-dots span:nth-child(1){background:#ff6c69;border-color:#ff6c69}
.window-dots span:nth-child(2){background:#ffcc5c;border-color:#ffcc5c}
.window-dots span:nth-child(3){background:#74d86d;border-color:#74d86d}
.window-bar small,.terminal-bar small{font:10px var(--mono);color:#788391}
.window-status{margin-left:auto;font:700 8px var(--mono);letter-spacing:.1em;color:var(--green)}

.avatar-stage{
  position:relative;
  overflow:hidden;
  aspect-ratio:1/1.08;
  background:radial-gradient(circle at 50% 44%,#2a3038 0,#171c23 42%,#0c1015 77%);
  isolation:isolate;
}
.avatar-stage:before{
  content:"";
  position:absolute;
  inset:0;
  z-index:0;
  background-image:
    linear-gradient(rgba(101,231,255,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(101,231,255,.07) 1px,transparent 1px);
  background-size:32px 32px;
  transform:perspective(500px) rotateX(0deg);
}
.avatar-stage:after{
  content:"";
  position:absolute;
  inset:0;
  z-index:3;
  pointer-events:none;
  background:linear-gradient(to bottom,transparent 55%,rgba(3,5,8,.35) 100%);
}
.avatar-stage img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
  image-rendering:auto;
  z-index:2;
  transition:transform .4s cubic-bezier(.2,.8,.2,1),filter .4s ease;
}
.pixel-stars{position:absolute;inset:0;z-index:1;opacity:.8;background-image:radial-gradient(circle,#65e7ff 1px,transparent 1.5px),radial-gradient(circle,#9dff65 1px,transparent 1.5px);background-size:83px 83px,121px 121px;background-position:17px 21px,53px 76px}
.level-chip{position:absolute;z-index:6;right:18px;bottom:18px;background:var(--green);color:#071006;font:700 10px var(--mono);padding:7px 10px;box-shadow:4px 4px 0 #3f6929}
.orbit{position:absolute;border:1px solid rgba(101,231,255,.22);border-radius:50%;z-index:1}
.orbit-a{width:72%;height:72%;left:14%;top:14%}
.orbit-b{width:52%;height:52%;left:24%;top:24%;border-style:dashed;animation:spin 16s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.avatar-stage.play img{transform:translateY(-7px) scale(1.015);filter:brightness(1.08)}
.avatar-stage.play .orbit-b{animation:spin .7s linear 3}
.avatar-stage.play .level-chip{animation:chip-hop .5s steps(3,end)}
@keyframes chip-hop{50%{transform:translateY(-6px)}}

.two-col{display:grid;grid-template-columns:190px 1fr;gap:6vw}
.section-label{font:700 11px var(--mono);letter-spacing:.09em;color:var(--green);padding-top:9px}
.content{max-width:1000px}
.content>h1,.content>h2,.contact-card h2{font-size:clamp(42px,5vw,76px);letter-spacing:-.055em;line-height:.98;margin:0 0 40px}
.content>p{font-size:19px;line-height:1.72;color:#aeb8c4;max-width:850px}
.content strong{color:#fff}
.content ul{color:#aeb8c4;line-height:1.8}

.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:48px}
.stats-grid article{padding:22px;border:1px solid var(--line);background:linear-gradient(145deg,var(--panel),#0d1219);position:relative;overflow:hidden;transition:transform .18s ease,border-color .18s ease}
.stats-grid article:after{content:"";position:absolute;right:0;top:0;width:20px;height:20px;border-top:1px solid rgba(157,255,101,.4);border-right:1px solid rgba(157,255,101,.4)}
.stats-grid article:hover{transform:translateY(-3px);border-color:#435363}
.stats-grid b{display:block;font:700 21px var(--mono);color:var(--cyan);margin-bottom:12px}
.stats-grid span{font-size:13px;line-height:1.55;color:var(--muted)}

.research-card{background:linear-gradient(135deg,#121821,#0e1319);border:1px solid #2e3947;padding:clamp(24px,4vw,48px);position:relative;overflow:hidden;box-shadow:14px 14px 0 rgba(0,0,0,.12)}
.research-card:before{content:"";position:absolute;left:0;top:0;width:5px;height:100%;background:linear-gradient(var(--cyan),transparent)}
.research-card:after{content:"mu";position:absolute;right:-12px;bottom:-58px;font:700 170px Georgia;color:rgba(101,231,255,.035)}
.card-topline{display:flex;justify-content:space-between;gap:16px;color:var(--green);font:11px var(--mono);margin-bottom:28px}
.research-card h3{font-size:clamp(26px,3vw,42px);letter-spacing:-.04em;max-width:800px;margin:0 0 22px;position:relative;z-index:1}
.research-card p,.research-card li{color:#a9b4c0;line-height:1.65;position:relative;z-index:1}
.research-card ul{padding-left:18px}
.mini-title{font:700 12px var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin:44px 0 16px}

.section-heading-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px}
.section-heading-row h2{font-size:clamp(42px,5vw,76px);letter-spacing:-.055em;margin:0}
.section-heading-row a{font:11px var(--mono);color:var(--green)}
.muted{color:var(--muted);font:12px var(--mono);margin:12px 0 24px}
.repo-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.repo-card{min-height:220px;border:1px solid var(--line);background:linear-gradient(145deg,var(--panel),#0d1218);padding:24px;display:flex;flex-direction:column;transition:transform .2s ease,border-color .2s ease,background .2s ease;position:relative;overflow:hidden}
.repo-card:before{content:"";position:absolute;right:-30px;top:-30px;width:60px;height:60px;border:1px solid rgba(101,231,255,.07);transform:rotate(45deg)}
.repo-card:hover{transform:translateY(-4px);border-color:#4b5a6d;background:#121923}
.repo-head{display:flex;justify-content:space-between;gap:12px}
.repo-card h3{font:700 16px var(--mono);margin:0;color:var(--text)}
.repo-card p{color:var(--muted);line-height:1.55;font-size:14px;flex:1}
.repo-meta{display:flex;justify-content:space-between;font:10px var(--mono);color:#8090a2}
.repo-meta .lang:before{content:"+";color:var(--green);margin-right:6px}
.repo-skeleton{height:220px;border:1px solid var(--line);background:linear-gradient(90deg,var(--panel),#171e28,var(--panel));background-size:200%;animation:shimmer 1.4s infinite}
@keyframes shimmer{to{background-position:-200% 0}}

.timeline{position:relative}
.timeline:before{content:"";position:absolute;left:117px;top:4px;bottom:0;width:1px;background:var(--line)}
.timeline article{display:grid;grid-template-columns:96px 1fr;gap:42px;padding-bottom:38px;position:relative}
.timeline article:after{content:"";position:absolute;left:113px;top:7px;width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green)}
.timeline time{font:10px var(--mono);color:var(--muted)}
.timeline h3{margin:0 0 6px;font-size:18px}
.timeline p{margin:0;color:var(--muted)}

.terminal{border:1px solid var(--line);background:#070a0e;box-shadow:10px 10px 0 #040507}
.terminal pre{margin:0;padding:28px;overflow:auto;color:#a8b3c1;font:13px/1.8 var(--mono)}
.cmd,.key{color:var(--green)}
.terminal-cursor{animation:blink .9s steps(1) infinite;color:var(--green)}

.contact-section{padding-top:110px;padding-bottom:110px}
.contact-card{border:1px solid #334050;background:linear-gradient(135deg,#111820,#0e1319);padding:clamp(28px,5vw,60px);display:grid;grid-template-columns:1.15fr .85fr;gap:60px;position:relative;overflow:hidden}
.contact-card:after{content:"CONNECT";position:absolute;right:-4px;top:16px;font:700 64px var(--mono);color:rgba(255,255,255,.018);letter-spacing:-.08em}
.contact-card h2{margin:22px 0}
.contact-card p{color:var(--muted);line-height:1.6;max-width:620px}
.contact-links{display:flex;flex-direction:column;justify-content:center;position:relative;z-index:1}
.contact-links a{padding:18px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:14px}
.contact-links span{font:10px var(--mono);color:var(--muted)}
.contact-links b{font:500 13px var(--mono);text-align:right}
.contact-links a:hover b{color:var(--green)}

footer{max-width:1440px;margin:auto;padding:26px 7vw 40px;display:flex;justify-content:space-between;gap:20px;color:#6f7b88;font:10px var(--mono)}
.accent{color:var(--green)}

.reveal{opacity:0;transform:translateY(22px);transition:opacity .65s ease,transform .65s ease}
.reveal.visible{opacity:1;transform:none}

@media(max-width:1050px){
  .hero{grid-template-columns:1fr 1fr;gap:3vw}
  .hero h1{font-size:clamp(58px,8vw,94px)}
}

@media(max-width:900px){
  .topbar{padding:0 22px}
  .topbar nav{display:none}
  .topbar-play{margin-left:auto}
  .section{padding:95px 24px}
  .hero{grid-template-columns:1fr;padding-top:118px;gap:54px}
  .hero-art{order:-1}
  .pixel-window{margin:auto;max-width:470px;width:100%}
  .hero h1{font-size:clamp(56px,17vw,98px)}
  .two-col{grid-template-columns:1fr;gap:30px}
  .stats-grid{grid-template-columns:1fr}
  .repo-grid{grid-template-columns:1fr}
  .contact-card{grid-template-columns:1fr}
  .section-label{padding-top:0}
  .section-heading-row{align-items:flex-start;flex-direction:column}
  .timeline:before{left:91px}
  .timeline article{grid-template-columns:72px 1fr;gap:38px}
  .timeline article:after{left:87px}
  footer{padding:24px;flex-direction:column}
  .content>h1,.content>h2,.contact-card h2{font-size:46px}
  .hero-copy{text-align:left}
}

@media(max-width:560px){
  .topbar-play{display:none}
  .hero{padding-left:18px;padding-right:18px}
  .hero h1{font-size:clamp(50px,19vw,78px)}
  .lead{font-size:18px}
  .avatar-stage{aspect-ratio:1/1.14}
  .window-status{display:none}
  .card-topline{flex-direction:column}
  .section{padding-left:18px;padding-right:18px}
  .contact-card{padding:24px 20px}
  .contact-links a{flex-direction:column}
  .contact-links b{text-align:left;overflow-wrap:anywhere}
}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* About page */
.about-page{max-width:1220px;margin:0 auto;padding:150px 7vw 100px}
.about-hero{display:grid;grid-template-columns:minmax(220px,330px) 1fr;gap:clamp(36px,7vw,90px);align-items:center;padding-bottom:80px;border-bottom:1px solid var(--line)}
.about-avatar{border:1px solid #394757;background:#0c1117;box-shadow:14px 14px 0 rgba(0,0,0,.24);position:relative;overflow:hidden}
.about-avatar img{display:block;width:100%;aspect-ratio:1/1.15;object-fit:cover}
.about-avatar span{position:absolute;left:10px;bottom:10px;background:var(--green);color:#071006;font:700 8px var(--mono);padding:6px 8px;box-shadow:3px 3px 0 #355823}
.about-hero h1{font-size:clamp(56px,8vw,112px);letter-spacing:-.075em;line-height:.86;margin:18px 0 28px}
.about-lead{font-size:clamp(18px,2vw,25px);line-height:1.6;color:#b4bec9;max-width:780px}
.about-lead strong{color:#fff}
.about-panels{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:70px}
.about-panels article{min-height:240px;padding:28px;border:1px solid var(--line);background:linear-gradient(145deg,var(--panel),#0c1117);position:relative;overflow:hidden}
.about-panels article:after{content:"";position:absolute;right:-22px;bottom:-22px;width:70px;height:70px;border:1px solid rgba(101,231,255,.08);transform:rotate(45deg)}
.panel-index{font:700 9px var(--mono);color:var(--green);letter-spacing:.1em}
.about-panels h2{font-size:28px;letter-spacing:-.035em;margin:18px 0}
.about-panels p,.about-panels li{color:#9ca8b4;line-height:1.7}
.about-panels ul{padding-left:18px}
.about-panels a{color:#dce5ec}.about-panels a:hover{color:var(--green)}
@media(max-width:800px){.about-page{padding:120px 22px 80px}.about-hero{grid-template-columns:1fr}.about-avatar{max-width:390px}.about-panels{grid-template-columns:1fr}}

/* V4 — avatar motion + crawlable internal navigation */
.avatar-picture{
  position:absolute;
  inset:0;
  z-index:2;
  display:block;
  transform-origin:50% 92%;
  animation:avatar-idle 4.6s steps(10,end) infinite;
}
.avatar-picture img{z-index:2}
@keyframes avatar-idle{
  0%,100%{transform:translateY(0) scale(1)}
  48%{transform:translateY(-3px) scale(1.003)}
  52%{transform:translateY(-3px) scale(1.003)}
}
.avatar-stage.enter-game .avatar-picture{animation:avatar-enter-game .9s steps(9,end) 1}
@keyframes avatar-enter-game{
  0%{transform:translate(0,0) scale(1)}
  35%{transform:translate(-4px,-8px) scale(1.015)}
  60%{transform:translate(5px,-13px) scale(.98)}
  80%{transform:translate(0,-5px) scale(1.01)}
  100%{transform:translate(0,0) scale(1)}
}
.section-deep-link{margin-top:22px!important;font:700 10px var(--mono)!important;letter-spacing:.04em}
.section-deep-link a{color:var(--green);text-decoration:none;border-bottom:1px solid rgba(157,255,101,.24);padding-bottom:3px}
.section-deep-link a:hover{border-color:var(--green)}
.footer-nav{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.footer-nav a{font:700 8px var(--mono);letter-spacing:.05em;text-transform:uppercase;color:#81909d;text-decoration:none}
.footer-nav a:hover{color:var(--green)}
.muted a{color:var(--cyan);text-decoration:none}
.muted a:hover{text-decoration:underline}

/* SEO support pages */
.seo-page{max-width:1180px;margin:0 auto;padding:150px 7vw 100px}
.seo-hero{padding-bottom:58px;border-bottom:1px solid var(--line)}
.seo-hero h1{font-size:clamp(52px,8vw,104px);letter-spacing:-.065em;line-height:.92;margin:18px 0 28px;max-width:1000px}
.seo-hero p{font-size:clamp(18px,2vw,23px);line-height:1.7;color:#aeb8c4;max-width:900px}
.seo-grid{display:grid;grid-template-columns:minmax(200px,.65fr) minmax(0,1.8fr);gap:7vw;padding-top:64px}
.seo-aside{font:700 10px/1.8 var(--mono);color:#758392}
.seo-aside strong{display:block;color:var(--green);letter-spacing:.08em;margin-bottom:8px}
.seo-content article{padding:0 0 50px;margin-bottom:50px;border-bottom:1px solid var(--line)}
.seo-content article:last-child{border-bottom:0}
.seo-content h2{font-size:clamp(32px,4vw,56px);letter-spacing:-.045em;margin:0 0 20px}
.seo-content h3{font-size:22px;margin:28px 0 10px}
.seo-content p,.seo-content li{color:#aeb8c4;line-height:1.8;font-size:17px}
.seo-content strong{color:#f3f6f8}
.seo-content a{color:var(--cyan)}
.breadcrumbs{font:700 9px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:#6f7d88;margin-bottom:28px}
.breadcrumbs a{color:var(--green);text-decoration:none}
@media(max-width:760px){.seo-page{padding:120px 22px 80px}.seo-grid{grid-template-columns:1fr;gap:28px}.footer-nav{order:3;width:100%}}

/* V4 avatar research-thought animation */
.avatar-thought{position:absolute;z-index:6;right:13%;top:16%;max-width:180px;padding:9px 11px;border:1px solid rgba(157,255,101,.45);background:rgba(6,12,9,.88);box-shadow:5px 5px 0 rgba(0,0,0,.2);font:700 9px var(--mono);letter-spacing:.02em;color:var(--green);transform:rotate(1.5deg);animation:thought-float 3.2s ease-in-out infinite}
.avatar-thought:after{content:"";position:absolute;left:16px;bottom:-7px;width:11px;height:11px;background:rgba(6,12,9,.92);border-right:1px solid rgba(157,255,101,.45);border-bottom:1px solid rgba(157,255,101,.45);transform:rotate(45deg)}
#avatar-equation{display:block;white-space:nowrap}.equation-pop{animation:equation-pop .3s steps(3,end)}
.avatar-stage.avatar-curious .avatar-picture{transform:translateY(-4px) rotate(-1deg) scale(1.015)}
@keyframes thought-float{0%,100%{transform:translateY(0) rotate(1.5deg)}50%{transform:translateY(-5px) rotate(.5deg)}}
@keyframes equation-pop{0%{opacity:.15;transform:translateY(3px)}100%{opacity:1;transform:translateY(0)}}
@media(max-width:720px){.avatar-thought{right:6%;top:12%;font-size:7px;padding:7px 8px;max-width:145px}}
@media(prefers-reduced-motion:reduce){.avatar-thought{animation:none}.avatar-stage.avatar-curious .avatar-picture{transform:none}}

.teaching-page .seo-hero h1{max-width:760px}
.teaching-year{display:block;color:var(--green);font:700 .48em/1 var(--mono);letter-spacing:.02em;margin-top:18px;text-shadow:4px 4px 0 #20351a}
.course-section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.course-section-heading h2{margin:12px 0 0;font-size:clamp(32px,4vw,54px);letter-spacing:-.045em;line-height:1}
.course-kicker{display:block;color:var(--green);font:700 10px var(--mono);letter-spacing:.1em;text-transform:uppercase}
.course-hint{color:var(--muted);font:700 9px var(--mono);letter-spacing:.08em}
.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.course-card{--course-accent:var(--green);--course-shadow:#355823;min-height:380px;display:flex;flex-direction:column;position:relative;isolation:isolate;overflow:hidden;padding:28px 22px 22px;border:2px solid var(--course-accent);background:linear-gradient(145deg,#17201b 0%,#0d1415 62%,#0a0f12 100%);box-shadow:8px 8px 0 rgba(0,0,0,.42);transition:transform .2s steps(3,end),box-shadow .2s steps(3,end),background .2s ease}
.course-card--green{--course-accent:var(--green);--course-shadow:#355823}
.course-card--cyan{--course-accent:var(--cyan);--course-shadow:#245b67;background:linear-gradient(145deg,#152126 0%,#0d1418 62%,#0a0f12 100%)}
.course-card--amber{--course-accent:var(--amber);--course-shadow:#6a4f20;background:linear-gradient(145deg,#242017 0%,#14120d 62%,#0a0f12 100%)}
.course-card:before{content:"";position:absolute;z-index:-1;right:18px;top:0;width:58px;height:13px;border:1px solid var(--course-accent);border-top:0;opacity:.55}
.course-card:after{content:"";position:absolute;z-index:-1;left:-30px;bottom:38px;width:120px;height:120px;border:1px solid color-mix(in srgb,var(--course-accent) 20%,transparent);transform:rotate(45deg)}
.course-card:hover{transform:translate(-2px,-5px);box-shadow:10px 12px 0 var(--course-shadow);background:#18221f}
.course-card--cyan:hover{background:#17262b}
.course-card--amber:hover{background:#292216}
.course-card:active{transform:translate(4px,4px);box-shadow:2px 2px 0 var(--course-shadow)}
.course-card:focus-visible{outline:3px dashed var(--course-accent);outline-offset:5px}
.course-card__contacts{position:absolute;left:22px;right:22px;bottom:8px;display:flex;gap:7px;opacity:.8}
.course-card__contacts i{display:block;width:12px;height:4px;background:var(--course-accent);box-shadow:0 2px 0 rgba(0,0,0,.55)}
.course-card__topline,.course-card__bottom{display:flex;justify-content:space-between;align-items:center;gap:10px;font:700 9px var(--mono);letter-spacing:.08em}
.course-card__code{color:var(--course-accent);overflow-wrap:anywhere}
.course-card__slot{color:#77848e}
.course-card__title{margin:48px 0 4px;color:var(--text);font:700 clamp(25px,2.4vw,35px)/.98 var(--sans);letter-spacing:-.05em}
.course-card__official{color:#a9b4bd;font:11px var(--mono);line-height:1.4}
.course-card__meta{margin-top:30px;color:#d0d8de;font:700 10px/1.7 var(--mono);letter-spacing:.02em}
.course-card__format{margin-top:16px;color:#8998a2;font:12px/1.5 var(--sans)}
.course-card__bottom{margin-top:auto;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);color:#82909b;font-size:8px}
.course-card__bottom strong{color:var(--course-accent);font-size:9px}
.content-intro{font-size:17px;line-height:1.7;color:#aeb8c4;max-width:850px}
.teaching-preview-line{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:32px}
.teaching-preview-line span{padding:14px 12px;border:1px solid var(--line);color:var(--green);background:rgba(255,255,255,.02);font:700 10px var(--mono);letter-spacing:.04em;box-shadow:3px 3px 0 rgba(0,0,0,.24)}
.teaching-preview-line span:nth-child(2){color:var(--cyan)}
.teaching-preview-line span:nth-child(3){color:var(--amber)}
.teaching-note{padding:28px;border:1px solid var(--line);background:linear-gradient(145deg,var(--panel),#0b1016);position:relative;overflow:hidden}
.teaching-note:after{content:"LOCKED";position:absolute;right:-12px;bottom:-28px;color:rgba(157,255,101,.04);font:700 90px var(--mono);letter-spacing:-.08em}
.teaching-note h2{margin:16px 0 12px;font-size:clamp(28px,3vw,42px);letter-spacing:-.04em}
.teaching-note p{position:relative;z-index:1;margin:0;color:#aeb8c4;line-height:1.7}
.course-hero{border-left:5px solid var(--course-accent);padding-left:clamp(22px,4vw,46px)}
.course-hero--green{--course-accent:var(--green)}
.course-hero--cyan{--course-accent:var(--cyan)}
.course-hero--amber{--course-accent:var(--amber)}
.course-hero .section-label{color:var(--course-accent)}
.course-hero h1{display:flex;flex-direction:column;gap:18px}
.course-hero-code{color:var(--course-accent);font:700 clamp(12px,1.4vw,16px)/1 var(--mono);letter-spacing:.1em}
.course-instructor{display:flex;align-items:center;gap:18px!important;flex-wrap:wrap}
.course-instructor span{color:var(--green);font:700 10px var(--mono);letter-spacing:.08em}
.course-instructor strong{font:700 14px var(--mono)!important;color:var(--text)!important}
.resources-article{scroll-margin-top:96px}
.resource-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.resource-card{--resource-accent:var(--green);min-height:245px;padding:22px 18px 18px;border:1px solid var(--resource-accent);background:linear-gradient(145deg,#141c1e,#0a0f13);position:relative;overflow:hidden;scroll-margin-top:96px}
.resource-card--green{--resource-accent:var(--green)}
.resource-card--cyan{--resource-accent:var(--cyan)}
.resource-card--amber{--resource-accent:var(--amber)}
.resource-card:before{content:"";position:absolute;top:0;right:0;width:34px;height:34px;border-left:1px solid var(--resource-accent);border-bottom:1px solid var(--resource-accent);opacity:.4}
.resource-card__status{display:block;color:var(--resource-accent);font:700 8px var(--mono);letter-spacing:.08em}
.resource-card__index{position:absolute;right:14px;top:13px;color:#73808a;font:700 9px var(--mono)}
.resource-card h3{margin:42px 0 12px;font:700 clamp(24px,3vw,36px)/1 var(--sans);letter-spacing:-.05em}
.resource-card p{margin:0;color:#9ba8b3;font:14px/1.6 var(--sans)}
.resource-card__action{position:absolute;left:18px;bottom:18px;color:#687681;font:700 8px var(--mono);letter-spacing:.06em}
@media(max-width:1050px){.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.course-card__title{font-size:32px}.resource-grid{grid-template-columns:1fr}}
@media(max-width:760px){.course-section-heading{align-items:flex-start;flex-direction:column}.course-grid{grid-template-columns:1fr}.course-card{min-height:340px}.course-card__title{font-size:36px}.course-hero h1{font-size:clamp(42px,11vw,72px)}.resource-grid{grid-template-columns:1fr}.teaching-preview-line{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){.course-card{transition:none}.course-card:hover,.course-card:active{transform:none}}