:root{
  --bg:#050814; --bg2:#0a1024;
  --card:rgba(17,25,52,.55); --card-2:rgba(24,34,68,.6);
  --stroke:rgba(148,163,255,.14); --stroke-2:rgba(148,163,255,.28);
  --text:#e7ecff; --muted:#93a0c8; --dim:#5f6b93;
  --cyan:#22d3ee; --violet:#8b5cf6; --blue:#3b82f6; --green:#34d399; --pink:#f472b6;
  --grad:linear-gradient(120deg,#22d3ee 0%,#3b82f6 45%,#8b5cf6 100%);
  --radius:20px; --maxw:1180px;
  --shadow:0 20px 60px -20px rgba(0,0,0,.6), inset 0 1px 0 rgba(255,255,255,.05);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.mono{font-family:"JetBrains Mono",ui-monospace,Consolas,monospace}
.muted{color:var(--muted)} .small{font-size:.9rem}
svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}

/* ---------- background ---------- */
#net{position:fixed;inset:0;z-index:-2;width:100%;height:100%}
.aurora{position:fixed;inset:0;z-index:-3;overflow:hidden;background:radial-gradient(ellipse at top,#0b1433 0%,var(--bg) 60%)}
.aurora span{position:absolute;border-radius:50%;filter:blur(90px);opacity:.35;animation:float 22s ease-in-out infinite}
.aurora span:nth-child(1){width:560px;height:560px;background:#1d4ed8;top:-160px;left:-120px}
.aurora span:nth-child(2){width:480px;height:480px;background:#7c3aed;top:30%;right:-160px;animation-delay:-7s}
.aurora span:nth-child(3){width:420px;height:420px;background:#0891b2;bottom:-160px;left:30%;animation-delay:-14s}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(80px,60px) scale(1.1)}66%{transform:translate(-60px,40px) scale(.95)}}
.grain{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.05;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.cursor-glow{position:fixed;width:420px;height:420px;border-radius:50%;pointer-events:none;z-index:-1;background:radial-gradient(circle,rgba(34,211,238,.10),transparent 65%);transform:translate(-50%,-50%);transition:opacity .3s;opacity:0}
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--grad);z-index:100;box-shadow:0 0 12px var(--cyan)}

/* ---------- nav ---------- */
.nav{position:fixed;top:14px;left:50%;transform:translateX(-50%);width:min(var(--maxw),calc(100% - 32px));z-index:50;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 12px 10px 16px;border-radius:16px;background:rgba(10,16,36,.55);backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%);border:1px solid var(--stroke);transition:background .3s,box-shadow .3s}
.nav.scrolled{background:rgba(8,12,28,.8);box-shadow:0 10px 40px -10px rgba(0,0,0,.6)}
.brand{display:flex;align-items:center;gap:10px;font-weight:700}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--grad);color:#050814;font-weight:800;font-size:.85rem}
.brand-name{font-family:"JetBrains Mono",monospace;font-size:.9rem;color:var(--muted)}
.nav-links{display:flex;gap:4px}
.nav-links a{position:relative;padding:8px 12px;border-radius:10px;font-size:.9rem;color:var(--muted);transition:color .2s,background .2s}
.nav-links a:hover,.nav-links a.active{color:var(--text);background:rgba(255,255,255,.05)}
.nav-links a.active::after{content:"";position:absolute;left:50%;bottom:3px;width:16px;height:2px;border-radius:2px;background:var(--cyan);transform:translateX(-50%)}
.nav-actions{display:flex;align-items:center;gap:10px}
.lang{position:relative;display:flex;padding:3px;border-radius:12px;background:rgba(255,255,255,.05);border:1px solid var(--stroke)}
.lang button{position:relative;z-index:1;border:0;background:none;color:var(--muted);font:600 .8rem Inter,sans-serif;padding:6px 11px;cursor:pointer;border-radius:9px;transition:color .25s}
.lang button[aria-pressed="true"]{color:#050814}
.lang-pill{position:absolute;top:3px;left:3px;height:calc(100% - 6px);width:calc(50% - 3px);border-radius:9px;background:var(--grad);transition:transform .35s cubic-bezier(.65,0,.35,1)}
.lang[data-active="en"] .lang-pill{transform:translateX(100%)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:12px;font-weight:600;font-size:.95rem;border:1px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .3s,background .3s,border-color .3s;font-family:inherit;color:var(--text)}
.btn-sm{padding:8px 14px;font-size:.85rem}
.btn-primary{background:var(--grad);color:#050814;box-shadow:0 8px 30px -8px rgba(34,211,238,.6)}
.btn-primary:hover{box-shadow:0 12px 40px -6px rgba(59,130,246,.8);transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--stroke-2)}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:var(--cyan)}
.btn-block{width:100%;margin-top:14px}

/* ---------- layout ---------- */
main{width:min(var(--maxw),calc(100% - 32px));margin:100px auto 0}
.card{position:relative;background:var(--card);border:1px solid var(--stroke);border-radius:var(--radius);padding:28px;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:var(--shadow);overflow:hidden}
.card::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;background:radial-gradient(500px circle at var(--mx,50%) var(--my,-20%),rgba(34,211,238,.09),transparent 45%);opacity:0;transition:opacity .4s}
.card:hover::before{opacity:1}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:24px;margin-top:24px;align-items:start}
.col-main{display:flex;flex-direction:column;gap:24px;min-width:0}
.col-side{display:flex;flex-direction:column;gap:24px;position:sticky;top:96px}
.sec-title{display:flex;align-items:center;gap:12px;font-size:1.45rem;font-weight:700;letter-spacing:-.02em;margin-bottom:18px}
.sec-title.standalone{margin:4px 0 16px 4px}
.sec-idx{font-size:.75rem;color:var(--cyan);padding:3px 8px;border:1px solid rgba(34,211,238,.35);border-radius:8px;background:rgba(34,211,238,.06)}
.side-title{display:flex;align-items:center;gap:8px;font-size:1.05rem;margin-bottom:14px}
.side{padding:22px}

/* ---------- profile ---------- */
.profile{position:relative;border-radius:24px;background:var(--card);border:1px solid var(--stroke);overflow:hidden;box-shadow:var(--shadow);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.cover{position:relative;height:210px;overflow:hidden;background:linear-gradient(120deg,#07122e,#101a4a 40%,#1f1147 75%,#062a3a)}
.cover-grid{position:absolute;inset:-50% -10% 0;background-image:linear-gradient(rgba(34,211,238,.18) 1px,transparent 1px),linear-gradient(90deg,rgba(34,211,238,.18) 1px,transparent 1px);background-size:44px 44px;transform:perspective(500px) rotateX(58deg);transform-origin:bottom;animation:grid 3.5s linear infinite;mask-image:linear-gradient(to top,#000 10%,transparent 85%);-webkit-mask-image:linear-gradient(to top,#000 10%,transparent 85%)}
@keyframes grid{to{background-position:0 44px}}
.cover-glow{position:absolute;inset:0;background:radial-gradient(600px 200px at 70% 100%,rgba(139,92,246,.45),transparent 70%),radial-gradient(400px 180px at 20% 0%,rgba(34,211,238,.25),transparent 70%)}
.cover-terminal{position:absolute;right:22px;top:20px;padding:10px 14px;border-radius:12px;font-size:.8rem;background:rgba(5,8,20,.65);border:1px solid var(--stroke-2);backdrop-filter:blur(8px);max-width:calc(100% - 44px);white-space:nowrap;overflow:hidden}
.c-green{color:var(--green)} .c-cyan{color:var(--cyan)}
.caret{color:var(--cyan);animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.profile-body{display:grid;grid-template-columns:auto 1fr auto;gap:28px;padding:0 32px 26px;align-items:end}
.avatar-wrap{position:relative;width:176px;height:176px;margin-top:-88px}
.avatar-ring{position:absolute;inset:-5px;border-radius:50%;background:conic-gradient(from 0deg,var(--cyan),var(--blue),var(--violet),var(--pink),var(--cyan));animation:spin 6s linear infinite;filter:drop-shadow(0 0 18px rgba(34,211,238,.45))}
@keyframes spin{to{transform:rotate(360deg)}}
.avatar{position:relative;width:176px;height:176px;border-radius:50%;object-fit:cover;border:5px solid var(--bg2)}
.status-dot{position:absolute;right:14px;bottom:14px;width:22px;height:22px;border-radius:50%;background:var(--green);border:4px solid var(--bg2);box-shadow:0 0 0 0 rgba(52,211,153,.6);animation:ping 2s infinite}
@keyframes ping{70%{box-shadow:0 0 0 12px rgba(52,211,153,0)}100%{box-shadow:0 0 0 0 rgba(52,211,153,0)}}
.profile-main{padding-top:18px;min-width:0}
.name{display:flex;align-items:center;gap:10px;font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:800;letter-spacing:-.03em;line-height:1.1}
.verified{width:26px;height:26px;color:var(--cyan);stroke:none}
.headline{margin-top:6px;font-size:1.08rem;color:var(--muted);min-height:1.7em}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:700}
.rotator{color:var(--text);border-right:2px solid var(--cyan);padding-right:3px}
.meta{display:flex;flex-wrap:wrap;gap:6px 18px;margin-top:10px;color:var(--muted);font-size:.9rem}
.meta span{display:inline-flex;align-items:center;gap:6px}
.meta svg{width:16px;height:16px;color:var(--cyan)}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.badge{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:999px;font-size:.8rem;font-weight:600;background:rgba(255,255,255,.05);border:1px solid var(--stroke-2);color:var(--muted)}
.badge-live{color:var(--green);border-color:rgba(52,211,153,.35);background:rgba(52,211,153,.08)}
.badge-live i{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green);animation:blink 1.6s infinite}
.cta{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.profile-side{display:flex;flex-direction:column;gap:12px;padding-bottom:4px}
.company{display:flex;align-items:center;gap:12px;font-size:.9rem}
.company small{display:block;color:var(--muted);font-size:.78rem}
.company-logo{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;font-weight:800;font-size:.8rem;background:linear-gradient(135deg,#0ea5e9,#2563eb);color:#fff}
.company-logo.alt{background:linear-gradient(135deg,#8b5cf6,#ec4899)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--stroke)}
.stat{padding:20px 24px;text-align:center;border-right:1px solid var(--stroke)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:1.9rem;font-weight:800;letter-spacing:-.03em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:.82rem;color:var(--muted)}

/* ---------- marquee ---------- */
.marquee{margin-top:24px;overflow:hidden;mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent)}
.marquee-track{display:flex;gap:12px;width:max-content;animation:marquee 45s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
@keyframes marquee{to{transform:translateX(-50%)}}
.chip{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:12px;background:var(--card);border:1px solid var(--stroke);font-size:.88rem;white-space:nowrap;color:var(--muted);transition:color .2s,border-color .2s}
.chip::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grad)}
.chip:hover{color:var(--text);border-color:var(--cyan)}

/* ---------- about ---------- */
.lead{font-size:1.08rem;color:var(--text);margin-bottom:12px}
#about p:not(.lead){color:var(--muted)}
.focus{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:22px}
.focus div{padding:14px;border-radius:14px;background:rgba(255,255,255,.03);border:1px solid var(--stroke);transition:transform .3s,border-color .3s}
.focus div:hover{transform:translateY(-4px);border-color:var(--stroke-2)}
.focus small{display:block;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--cyan);font-family:"JetBrains Mono",monospace}
.focus strong{font-size:.95rem}

/* ---------- timeline ---------- */
.timeline{list-style:none;position:relative;padding-left:32px}
.timeline::before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;background:linear-gradient(var(--cyan),var(--violet),transparent);transform-origin:top;transform:scaleY(var(--tl,0));transition:transform 1.4s cubic-bezier(.2,.8,.2,1)}
.tl-item{position:relative;padding:0 0 28px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{position:absolute;left:-32px;top:4px;width:20px;height:20px;border-radius:50%;background:var(--bg2);border:2px solid var(--stroke-2);display:grid;place-items:center}
.tl-dot::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--muted)}
.tl-item.current .tl-dot{border-color:var(--cyan);box-shadow:0 0 16px rgba(34,211,238,.5)}
.tl-item.current .tl-dot::after{background:var(--cyan);animation:blink 1.6s infinite}
.tl-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:4px 12px;align-items:baseline}
.tl-role{font-size:1.08rem;font-weight:700}
.tl-company{color:var(--cyan);font-weight:500;font-size:.92rem}
.tl-period{font-family:"JetBrains Mono",monospace;font-size:.78rem;color:var(--muted);padding:3px 10px;border-radius:8px;background:rgba(255,255,255,.04);border:1px solid var(--stroke)}
.tl-desc{color:var(--muted);margin:8px 0 10px;font-size:.94rem}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{font-size:.76rem;padding:4px 10px;border-radius:8px;background:rgba(59,130,246,.08);border:1px solid rgba(59,130,246,.22);color:#b9c7ff;transition:all .2s}
.tag:hover{background:rgba(34,211,238,.15);border-color:var(--cyan);color:#fff}
.tags.collapsed .tag:nth-child(n+11){display:none}
.more{margin-top:8px;background:none;border:0;color:var(--cyan);font:600 .82rem Inter,sans-serif;cursor:pointer}

/* ---------- projects ---------- */
.projects{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.project{padding:24px;transform-style:preserve-3d;transition:transform .15s ease-out,border-color .3s}
.project:hover{border-color:var(--stroke-2)}
.project-top{display:flex;align-items:center;gap:14px;margin-bottom:12px}
.p-icon{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,rgba(34,211,238,.18),rgba(139,92,246,.18));border:1px solid var(--stroke-2);color:var(--cyan);transform:translateZ(30px)}
.p-icon svg{width:22px;height:22px}
.project h3{font-size:1.05rem;line-height:1.25}
.project .p-sub{font-size:.8rem;color:var(--muted);font-family:"JetBrains Mono",monospace}
.project p{color:var(--muted);font-size:.9rem;margin-bottom:14px}


/* ---------- lab ---------- */
.projects>.project:last-child:nth-child(odd){grid-column:1/-1}
.lab-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:8px 20px;margin-bottom:16px}
.lab-head .sec-title{margin-bottom:0}
.lab-intro{flex-basis:100%;margin:-4px 0 0 4px;font-size:.95rem}
.lab-legend{display:flex;gap:8px;flex-wrap:wrap;margin-left:4px}
.lab{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.lab-card{padding:22px;display:flex;flex-direction:column;gap:6px;transition:transform .3s,border-color .3s}
.lab-card:hover{transform:translateY(-4px);border-color:var(--stroke-2)}
.lab-card h3{font-size:1.05rem;line-height:1.25}
.lab-card p{color:var(--muted);font-size:.9rem;margin:6px 0 10px}
.lab-card .p-sub{font-size:.78rem;color:var(--muted);font-family:"JetBrains Mono",monospace}
.lab-card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.lab-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:14px}
.status{display:inline-flex;align-items:center;gap:7px;padding:4px 10px;border-radius:999px;font-size:.74rem;font-weight:600;border:1px solid;backdrop-filter:blur(8px)}
.status i{width:7px;height:7px;border-radius:50%;background:currentColor}
.status-live{color:var(--green);border-color:rgba(52,211,153,.4);background:rgba(6,40,30,.6)}
.status-live i{box-shadow:0 0 10px currentColor;animation:blink 1.6s infinite}
.status-wip{color:#fbbf24;border-color:rgba(251,191,36,.4);background:rgba(45,32,5,.6)}
.status-idea{color:#c4b5fd;border-color:rgba(167,139,250,.4);background:rgba(30,20,60,.6)}
.lab-featured{grid-column:1/-1;display:grid;grid-template-columns:1.25fr 1fr;padding:0;gap:0}
.lab-featured:hover{transform:none}
.lab-media{position:relative;min-height:320px;overflow:hidden;cursor:pointer;background:#02050d;border-right:1px solid var(--stroke)}
.lab-media img,.lab-media video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.2s cubic-bezier(.2,.8,.2,1),opacity .5s}
.lab-media video{opacity:0}
.lab-media.playing video{opacity:1}
.lab-media:hover img{transform:scale(1.05)}
.lab-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,8,20,.55),transparent 35%,transparent 60%,rgba(5,8,20,.75));pointer-events:none}
.lab-media-top{position:absolute;z-index:2;top:14px;left:14px;right:14px;display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap}
.url-chip{font-size:.72rem;padding:4px 10px;border-radius:8px;background:rgba(5,8,20,.7);border:1px solid var(--stroke-2);color:var(--cyan)}
.play-btn{position:absolute;z-index:2;left:50%;top:50%;width:70px;height:70px;margin:-35px 0 0 -35px;border-radius:50%;display:grid;place-items:center;background:rgba(34,211,238,.18);border:1px solid rgba(34,211,238,.6);color:#fff;backdrop-filter:blur(10px);transition:transform .3s,background .3s,opacity .3s;box-shadow:0 0 0 0 rgba(34,211,238,.5);animation:ring 2.4s infinite}
.play-btn svg{width:26px;height:26px;margin-left:4px}
.lab-media:hover .play-btn{transform:scale(1.12);background:rgba(34,211,238,.35)}
.lab-media.playing .play-btn{opacity:.0}
.lab-media.playing:hover .play-btn{opacity:1}
@keyframes ring{70%{box-shadow:0 0 0 22px rgba(34,211,238,0)}100%{box-shadow:0 0 0 0 rgba(34,211,238,0)}}
.lab-body{padding:24px;display:flex;flex-direction:column;gap:4px}
.lab-featured h3{font-size:1.4rem;letter-spacing:-.02em}
.hl{list-style:none;margin:2px 0 14px;display:grid;gap:6px}
.hl li{position:relative;padding-left:20px;font-size:.86rem;color:var(--text)}
.hl li::before{content:"";position:absolute;left:2px;top:.55em;width:8px;height:8px;border-radius:2px;background:var(--grad);transform:rotate(45deg)}
.local-note{margin-top:10px;font-size:.75rem;color:var(--green)}
.lab-next{align-items:center;justify-content:center;text-align:center;border:1.5px dashed var(--stroke-2);border-radius:var(--radius);background:rgba(255,255,255,.015);min-height:200px}
.lab-next:hover{border-color:var(--cyan)}
.plus{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;font-size:1.6rem;color:var(--cyan);border:1px solid var(--stroke-2);margin-bottom:6px;transition:transform .4s}
.lab-next:hover .plus{transform:rotate(90deg)}
/* player */
.player{margin:auto;width:min(1100px,94vw);padding:0;border:1px solid var(--stroke-2);border-radius:18px;background:#040711;color:var(--text);overflow:hidden;box-shadow:0 40px 120px -20px rgba(0,0,0,.9)}
.player::backdrop{background:rgba(2,4,10,.8);backdrop-filter:blur(8px)}
.player[open]{animation:pop .35s cubic-bezier(.2,.8,.2,1)}
.player-bar{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;font-size:.82rem;color:var(--muted);border-bottom:1px solid var(--stroke)}
.player-close{border:0;background:rgba(255,255,255,.06);color:var(--text);width:32px;height:32px;border-radius:9px;cursor:pointer;font-size:.9rem}
.player-close:hover{background:rgba(244,114,182,.25)}
.player video{display:block;width:100%;max-height:80vh;background:#000}
@media (max-width:1040px){.lab{grid-template-columns:repeat(2,1fr)}}
@media (max-width:720px){
  .lab{grid-template-columns:1fr}
  .lab-featured{grid-template-columns:1fr;padding:0}
  .lab-media{min-height:210px;border-right:0;border-bottom:1px solid var(--stroke)}
  .lab-body{padding:20px}
}

/* demo interactiva */
.player.demo{width:min(1500px,96vw);height:min(900px,90vh);display:none;flex-direction:column}
.player.demo[open]{display:flex}
.demo-hint{flex:1;margin:0 14px;font-size:.78rem;color:var(--dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.demo-tab{font-size:.75rem;color:var(--cyan);margin-right:10px;white-space:nowrap}
.demo-tab:hover{text-decoration:underline}
.demo-frame{position:relative;flex:1;background:#02050d}
.demo-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0;opacity:0;transition:opacity .6s}
.player.demo.ready iframe{opacity:1}
.demo-loading{position:absolute;inset:0;display:grid;place-items:center;color:var(--cyan);font-size:.85rem;letter-spacing:.2em;animation:blink 1.2s infinite}
.player.demo.ready .demo-loading{display:none}
@media (max-width:720px){.player.demo{width:100vw;height:100dvh;max-width:100vw;max-height:100dvh;border-radius:0}.demo-hint{display:none}}

/* ---------- skills ---------- */
.skill-group{margin-bottom:16px}
.skill-group:last-child{margin-bottom:0}
.skill-group h4{font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;color:var(--dim);margin-bottom:8px;font-family:"JetBrains Mono",monospace}
.skill-group .tags .tag{font-size:.8rem}

/* ---------- languages ---------- */
.lang-row{margin-bottom:14px}
.lang-row:last-child{margin-bottom:0}
.lang-row .lr-top{display:flex;justify-content:space-between;font-size:.9rem;margin-bottom:6px}
.lang-row small{color:var(--muted)}
.bar{height:6px;border-radius:6px;background:rgba(255,255,255,.06);overflow:hidden}
.bar i{display:block;height:100%;width:0;border-radius:inherit;background:var(--grad);transition:width 1.4s cubic-bezier(.2,.8,.2,1)}

/* ---------- contact ---------- */
.contact-row{display:flex;align-items:center;gap:12px;padding:10px;margin:0 -10px;border-radius:12px;font-size:.9rem;transition:background .2s;word-break:break-all}
a.contact-row:hover{background:rgba(255,255,255,.05)}
.contact-row small{display:block;font-size:.72rem;color:var(--muted)}
.ci{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:rgba(34,211,238,.1);color:var(--cyan);flex-shrink:0}
.refs{margin-top:10px;font-style:italic}

/* ---------- education ---------- */
.edu-main{display:flex;gap:16px;align-items:center;padding:16px;border-radius:14px;background:rgba(255,255,255,.03);border:1px solid var(--stroke)}
.edu-icon{display:grid;place-items:center;width:48px;height:48px;border-radius:14px;background:var(--grad);color:#050814;flex-shrink:0}
.edu-icon svg{width:24px;height:24px}
.sub{font-size:1rem;margin:24px 0 12px}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.filters button{border:1px solid var(--stroke);background:rgba(255,255,255,.03);color:var(--muted);padding:6px 14px;border-radius:999px;font:500 .82rem Inter,sans-serif;cursor:pointer;transition:all .25s}
.filters button:hover{color:var(--text);border-color:var(--stroke-2)}
.filters button.on{background:var(--grad);color:#050814;border-color:transparent}
.courses{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.course{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border-radius:12px;background:rgba(255,255,255,.025);border:1px solid var(--stroke);transition:opacity .35s,transform .35s,border-color .2s}
.course:hover{border-color:var(--stroke-2)}
.course.hide{display:none}
.course.pop{animation:pop .45s cubic-bezier(.2,.8,.2,1) both}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.97)}}
.course-year{font-family:"JetBrains Mono",monospace;font-size:.72rem;color:var(--cyan);padding:2px 7px;border-radius:6px;background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.25);flex-shrink:0;margin-top:2px;min-width:44px;text-align:center}
.course strong{display:block;font-size:.88rem;font-weight:600;line-height:1.35}
.course small{color:var(--muted);font-size:.78rem}

/* ---------- footer / toast ---------- */
.footer{width:min(var(--maxw),calc(100% - 32px));margin:48px auto 32px;display:flex;justify-content:space-between;align-items:center;color:var(--dim);font-size:.8rem;border-top:1px solid var(--stroke);padding-top:20px}
.to-top{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;border:1px solid var(--stroke-2);color:var(--muted);transition:all .2s}
.to-top:hover{color:var(--cyan);border-color:var(--cyan);transform:translateY(-3px)}
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,120px);opacity:0;visibility:hidden;padding:12px 20px;border-radius:12px;background:rgba(10,16,36,.9);border:1px solid var(--cyan);backdrop-filter:blur(12px);font-size:.9rem;z-index:200;transition:transform .45s cubic-bezier(.2,.8,.2,1)}
.toast.show{transform:translate(-50%,0);opacity:1;visibility:visible}
.toast{transition:transform .45s cubic-bezier(.2,.8,.2,1),opacity .3s,visibility .3s}

/* ---------- reveal + i18n swap ---------- */
.reveal{opacity:0;transform:translateY(40px);transition:opacity .9s cubic-bezier(.2,.8,.2,1),transform .9s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
.stagger>*{opacity:0;transform:translateY(20px);transition:opacity .6s,transform .6s}
.in .stagger>*,.stagger.in>*{opacity:1;transform:none}
body.swapping [data-i18n],body.swapping .i18n-block{opacity:0;filter:blur(4px);transform:translateY(4px)}
[data-i18n],.i18n-block{transition:opacity .25s,filter .25s,transform .25s}

/* ---------- responsive ---------- */
@media (max-width:1040px){
  .nav-links{display:none}
  .layout{grid-template-columns:1fr}
  .col-side{position:static;display:grid;grid-template-columns:1fr 1fr}
  .profile-body{grid-template-columns:auto 1fr}
  .profile-side{display:none}
}
@media (max-width:720px){
  main{margin-top:88px}
  .nav{top:8px;width:calc(100% - 16px)}
  .brand-name{display:none}
  .cover{height:150px}
  .cover-terminal{left:16px;right:16px;top:14px;font-size:.72rem}
  .profile-body{grid-template-columns:1fr;padding:0 20px 22px;gap:4px}
  .avatar-wrap,.avatar{width:130px;height:130px}
  .avatar-wrap{margin-top:-65px}
  .status-dot{right:8px;bottom:8px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(-n+2){border-bottom:1px solid var(--stroke)}
  .card{padding:20px}
  .focus{grid-template-columns:repeat(2,1fr)}
  .projects,.courses,.col-side{grid-template-columns:1fr}
  .cta .btn{flex:1;padding:12px 14px;font-size:.9rem;white-space:nowrap}
  .footer{flex-direction:column;gap:12px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
}