:root{
  --bg:#060812; --bg2:#0a0e1c; 
  --ink:#eef2ff; --muted:#98a4c4; --dim:#5a6788;
  --violet:#8b5cf6; --cyan:#22d3ee; --pink:#f472b6; --lime:#a3e635;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.04);
  --glass2:rgba(255,255,255,.07);
  --mono:'JetBrains Mono',ui-monospace,monospace;
  --disp:'Space Grotesk',system-ui,sans-serif;
  --body:'Inter',system-ui,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{max-width:100%;overflow-x:hidden}
body{background:var(--bg);color:var(--ink);font-family:var(--body);line-height:1.6}
img,canvas,svg{max-width:100%}
a{color:inherit}
::selection{background:rgba(139,92,246,.4)}

/* backdrop */
.aurora{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden;max-width:100vw}
.blob{position:absolute;border-radius:50%;filter:blur(100px);opacity:.45;mix-blend-mode:screen;animation:float 20s ease-in-out infinite}
.b1{width:540px;height:540px;background:radial-gradient(circle,#8b5cf6,transparent 70%);top:-140px;left:-100px}
.b2{width:480px;height:480px;background:radial-gradient(circle,#22d3ee,transparent 70%);top:30%;right:-120px;animation-delay:-7s}
.b3{width:440px;height:440px;background:radial-gradient(circle,#f472b6,transparent 70%);bottom:-160px;left:25%;animation-delay:-13s}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(50px,-40px) scale(1.1)}66%{transform:translate(-40px,30px) scale(.92)}}
.gridbg{position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);
  background-size:56px 56px;mask-image:radial-gradient(ellipse at 50% 0%,#000 35%,transparent 78%)}

/* nav */
nav{position:sticky;top:0;z-index:60;display:flex;justify-content:space-between;align-items:center;
  padding:14px 26px;backdrop-filter:blur(16px);background:rgba(6,8,18,.6);border-bottom:1px solid var(--line)}
.brand{font-family:var(--disp);font-weight:700;letter-spacing:.4px;font-size:15px;text-decoration:none}
.brand b{background:linear-gradient(90deg,var(--cyan),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}
.navlinks{display:flex;gap:24px;align-items:center}
.navlinks a{color:var(--muted);text-decoration:none;font-size:13.5px;font-weight:500;transition:color .2s}
.navlinks a:hover,.navlinks a.active{color:var(--ink)}
.kbd-hint{font-family:var(--mono);font-size:11px;color:var(--dim);border:1px solid var(--line);border-radius:7px;padding:4px 9px;cursor:pointer;transition:border-color .2s,color .2s}
.kbd-hint:hover{border-color:var(--cyan);color:var(--cyan)}
@media(max-width:680px){.navlinks a:not(.kbd-hint){display:none}}

main{position:relative;z-index:1;max-width:1120px;margin:0 auto;padding:0 24px;width:100%}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}

/* buttons */
.btn{display:inline-block;padding:12px 24px;border-radius:12px;font-weight:600;font-size:14px;text-decoration:none;cursor:pointer;border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s}
.btn-primary{background:linear-gradient(100deg,var(--violet),var(--cyan));color:#04060d;box-shadow:0 8px 30px rgba(139,92,246,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 42px rgba(34,211,238,.45)}
.btn-ghost{background:var(--glass);border-color:var(--line);color:var(--ink);backdrop-filter:blur(10px)}
.btn-ghost:hover{transform:translateY(-2px);background:var(--glass2)}

/* headings */
.eyebrow{font-family:var(--mono);font-size:12.5px;color:var(--cyan);letter-spacing:2px;text-transform:uppercase}
.sec-head{display:flex;align-items:baseline;gap:14px;margin-bottom:34px}
.sec-num{font-family:var(--mono);font-size:13px;color:var(--violet)}
.sec-title{font-family:var(--disp);font-weight:600;font-size:clamp(24px,3.5vw,32px);letter-spacing:-.5px}

/* reveal */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}

section{padding:66px 0;position:relative}

/* cards */
.card{padding:26px;border-radius:20px;border:1px solid var(--line);background:var(--glass);backdrop-filter:blur(14px);position:relative;overflow:hidden;transition:transform .3s,border-color .3s;text-decoration:none;color:inherit;display:block}
.card::before{content:"";position:absolute;inset:0;background:radial-gradient(600px circle at var(--mx,50%) var(--my,0%),rgba(139,92,246,.13),transparent 40%);opacity:0;transition:opacity .3s}
.card:hover::before{opacity:1}
.card:hover{transform:translateY(-5px);border-color:rgba(139,92,246,.42)}
.card .tag{font-family:var(--mono);font-size:11px;color:var(--cyan);letter-spacing:1px;text-transform:uppercase}
.card h3{font-family:var(--disp);font-weight:600;font-size:21px;margin:8px 0 10px}
.card p{color:var(--muted);font-size:14.5px;margin-bottom:16px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.diagram,.flow{max-width:100%}
.chip{font-family:var(--mono);font-size:11.5px;padding:5px 11px;border-radius:8px;background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--muted)}
.metrics{display:flex;gap:24px;margin:14px 0;flex-wrap:wrap}
.metrics .mn{font-family:var(--disp);font-weight:700;font-size:20px;color:var(--pink)}
.metrics .ml{font-size:11px;color:var(--dim)}
.projthumb{height:150px;border-radius:14px;margin-bottom:16px;position:relative;overflow:hidden;border:1px solid var(--line)}
.projthumb .thumbcanvas{position:absolute;inset:0;width:100%;height:100%;display:block}

footer{position:relative;z-index:1;text-align:center;padding:34px 0 52px;color:var(--dim);font-size:12.5px;font-family:var(--mono)}
footer a{color:var(--cyan);text-decoration:none}

/* command palette */
.cmdk-overlay{position:fixed;inset:0;z-index:200;background:rgba(3,5,12,.6);backdrop-filter:blur(6px);display:none;align-items:flex-start;justify-content:center;padding-top:14vh}
.cmdk-overlay.open{display:flex}
.cmdk{width:min(560px,92vw);background:rgba(13,17,32,.96);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.6)}
.cmdk input{width:100%;padding:18px 20px;background:transparent;border:none;outline:none;color:var(--ink);font-size:16px;font-family:var(--body);border-bottom:1px solid var(--line)}
.cmdk-list{max-height:340px;overflow-y:auto;padding:8px}
.cmdk-item{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:10px;cursor:pointer;font-size:14px;color:var(--muted)}
.cmdk-item .ic{font-family:var(--mono);font-size:13px;color:var(--violet)}
.cmdk-item.sel,.cmdk-item:hover{background:var(--glass2);color:var(--ink)}
.cmdk-foot{padding:10px 16px;border-top:1px solid var(--line);font-family:var(--mono);font-size:11px;color:var(--dim);display:flex;gap:16px}

/* ---- mobile performance: heavy blur + blend modes hang iOS Safari ---- */
@media(max-width:820px){
  .blob{filter:blur(60px);opacity:.4;mix-blend-mode:normal;animation-duration:30s}
  .gridbg{display:none}
  nav{backdrop-filter:blur(8px)}
  .card,.stat,.skillcat,.viz,.term{backdrop-filter:none}
}