:root{
  --bg:#0b0f1a; --bg2:#10162a; --card:#121932; --line:#232c4a;
  --text:#e9ecf5; --muted:#a3adc8; --accent:#ffb454; --accent2:#8b7bff; --on-accent:#1a1204;
  --shadow:0 10px 40px rgba(0,0,0,.35);
  --radius:20px;
}
:root[data-theme="light"]{
  --bg:#f6f7fb; --bg2:#eceff7; --card:#ffffff; --line:#dde2f0;
  --text:#121830; --muted:#55607f; --accent:#d9780a; --accent2:#5b4bd6; --on-accent:#ffffff;
  --shadow:0 10px 30px rgba(20,30,70,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased;transition:background .3s,color .3s}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(800px 500px at 85% -5%,color-mix(in srgb,var(--accent2) 22%,transparent),transparent 70%),
             radial-gradient(700px 450px at -5% 20%,color-mix(in srgb,var(--accent) 14%,transparent),transparent 70%)}
h1,h2,h3{font-family:"Space Grotesk",Inter,sans-serif;line-height:1.1;margin:0}
a{color:inherit}
.container{width:min(1100px,100% - 40px);margin-inline:auto}
.section{padding:84px 0 20px}
.eyebrow{display:flex;align-items:center;gap:12px;color:var(--accent);font-weight:600;letter-spacing:.18em;text-transform:uppercase;font-size:.78rem;margin:0 0 14px}
.eyebrow::before{content:"";width:38px;height:2px;background:var(--accent)}
h2{font-size:clamp(1.9rem,4.5vw,3rem);margin-bottom:34px;letter-spacing:-.02em}
.sub{font-size:1.4rem;margin:44px 0 16px}

.progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--accent),var(--accent2));z-index:100}

/* NAV */
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px max(20px,calc((100% - 1100px)/2));background:color-mix(in srgb,var(--bg) 80%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:600}
.brand-mark{position:relative;display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--accent2),#3b2fa0);color:#fff;font-family:"Space Grotesk",Inter,system-ui,sans-serif;font-weight:700}
.brand-mark i{position:absolute;right:-3px;bottom:-3px;width:11px;height:11px;border-radius:50%;background:var(--accent);border:2px solid var(--bg)}
.nav-links{display:flex;gap:6px}
.nav-links a{padding:8px 14px;border-radius:999px;text-decoration:none;color:var(--muted);font-weight:500;font-size:.95rem;transition:.2s}
.nav-links a:hover{color:var(--text)}
.nav-links a.active{color:var(--on-accent);background:var(--accent)}
.nav-actions{display:flex;align-items:center;gap:8px}
.icon-btn{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--card);color:var(--text);cursor:pointer;transition:.2s}
.icon-btn:hover{border-color:var(--accent);color:var(--accent)}
.menu-btn{display:none}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 24px;border-radius:14px;border:1px solid transparent;background:var(--accent);color:var(--on-accent);font-weight:600;font-size:1rem;text-decoration:none;cursor:pointer;font-family:inherit;transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px color-mix(in srgb,var(--accent) 35%,transparent)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);box-shadow:none}
.btn-small{padding:10px 16px;font-size:.9rem;border-radius:12px}
.link-arrow{color:var(--accent);font-weight:600;text-decoration:none}
.link-arrow:hover{text-decoration:underline}

/* HERO */
.hero{padding:70px 0 40px}
.pill{display:inline-flex;align-items:center;gap:10px;padding:10px 18px;border:1px solid color-mix(in srgb,var(--accent) 45%,transparent);border-radius:999px;background:color-mix(in srgb,var(--accent) 10%,transparent);color:var(--accent);font-weight:500;font-size:.92rem;margin:0 0 26px}
.dot{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 0 var(--accent);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 10px transparent}100%{box-shadow:0 0 0 0 transparent}}
h1{font-size:clamp(2.8rem,9vw,5.6rem);letter-spacing:-.035em;margin-bottom:22px}
.grad{background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:clamp(1.1rem,2.4vw,1.5rem);color:var(--text);max-width:760px;margin:0 0 14px}
.lead.small{font-size:1.1rem;color:var(--muted)}
.typed{color:var(--muted);font-size:1.15rem;margin:0 0 30px}
#typed{color:var(--accent);font-weight:600}
.caret{color:var(--accent);animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.chips{list-style:none;padding:0;margin:30px 0 0;display:flex;flex-wrap:wrap;gap:10px}
.chips li{padding:8px 16px;border:1px solid var(--line);border-radius:999px;background:var(--card);color:var(--muted);font-size:.92rem}
.chips.small{margin:16px 0 0}
.chips.small li{padding:6px 12px;font-size:.84rem}

/* STATS */
.stats-wrap{margin-top:30px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);position:relative}
.stats::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent2))}
.stat{padding:30px 26px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-family:"Space Grotesk",Inter,system-ui,sans-serif;font-size:clamp(2.2rem,5vw,3.2rem);color:var(--accent);line-height:1;margin-bottom:12px}
.stat span{color:var(--muted);font-size:.95rem;display:block}

/* ABOUT */
.about-grid{display:grid;gap:28px}
.big{font-size:clamp(1.2rem,2.6vw,1.6rem);line-height:1.4;margin:0 0 16px}
.about-grid p{color:var(--muted);max-width:820px}
.about-grid .big{color:var(--text)}
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:transform .25s,border-color .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--accent) 55%,var(--line));box-shadow:var(--shadow)}
.card h3{font-size:1.3rem;margin-bottom:10px}
.card p{margin:0;color:var(--muted)}

/* PROJECTS */
.project-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.project{display:flex;flex-direction:column;gap:12px}
.project .question{color:var(--text);font-weight:500}
.project .link-arrow{margin-top:auto;padding-top:10px}
.tag{display:inline-block;padding:6px 12px;border-radius:999px;font-size:.78rem;font-weight:600;color:var(--accent2);background:color-mix(in srgb,var(--accent2) 14%,transparent);border:1px solid color-mix(in srgb,var(--accent2) 40%,transparent)}
.project.more{grid-column:1/-1;align-items:flex-start;background:linear-gradient(135deg,var(--card),var(--bg2))}

/* TIMELINE */
.timeline{position:relative;display:grid;gap:16px;padding-left:34px}
.timeline::before{content:"";position:absolute;left:9px;top:10px;bottom:10px;width:2px;background:linear-gradient(var(--accent),var(--accent2))}
.tl-item{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.tl-item::before{content:"";position:absolute;left:-34px;top:28px;width:20px;height:20px;border-radius:50%;background:var(--bg);border:3px solid var(--accent)}
.tl-head{all:unset;box-sizing:border-box;display:grid;grid-template-columns:1fr auto;gap:4px 12px;width:100%;padding:22px 26px;cursor:pointer}
.tl-head:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
.tl-title{font-family:"Space Grotesk",Inter,system-ui,sans-serif;font-size:1.35rem;font-weight:600}
.tl-title small{font-family:Inter;font-weight:400;color:var(--muted);font-size:.85rem;margin-left:8px}
.tl-meta{grid-column:1;color:var(--muted);font-size:.95rem}
.chev{grid-column:2;grid-row:1/3;align-self:center;color:var(--muted);transition:transform .3s}
.tl-head[aria-expanded="true"] .chev{transform:rotate(180deg)}
.tl-body{display:grid;grid-template-rows:0fr;transition:grid-template-rows .35s ease}
.tl-head[aria-expanded="true"] + .tl-body{grid-template-rows:1fr}
.tl-body > ul{overflow:hidden;margin:0;padding:0 26px 0 46px;color:var(--muted)}
.tl-head[aria-expanded="true"] + .tl-body > ul{padding-bottom:24px}
.tl-body li{margin:8px 0}
.certs{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.certs li{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 20px;padding:16px 22px;border:1px solid var(--line);border-radius:14px;background:var(--card)}
.certs span{color:var(--muted);font-size:.92rem}

/* SKILLS */
.acc{display:grid;gap:14px}
.acc-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:6px 26px 22px}
.acc-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;padding:16px 0 4px;font-family:"Space Grotesk",Inter,system-ui,sans-serif;font-weight:600;font-size:1.3rem}
.acc-item summary::-webkit-details-marker{display:none}
.acc-item summary::before{content:"";width:14px;height:14px;border-radius:5px;background:var(--accent)}
.acc-item summary::after{content:"+";margin-left:auto;color:var(--muted);font-size:1.6rem;transition:transform .25s}
.acc-item[open] summary::after{transform:rotate(45deg)}

/* RESUME */
.resume-bar{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:18px}
.resume-frame{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--card);box-shadow:var(--shadow)}
.resume-frame iframe{display:block;width:100%;height:min(85vh,1000px);border:0;background:#fff}
.resume-fallback{margin:0;padding:12px 18px;font-size:.85rem;color:var(--muted);border-top:1px solid var(--line)}

/* FOOTER */
.footer{margin-top:90px;padding:70px 0 40px;border-top:1px solid var(--line);background:linear-gradient(var(--bg),var(--bg2))}
.contact-list{list-style:none;padding:0;margin:28px 0 30px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.contact-list li{display:flex;gap:16px;align-items:center;padding:20px 22px;border:1px solid var(--line);border-radius:16px;background:var(--card)}
.ci{display:grid;place-items:center;width:46px;height:46px;border-radius:12px;background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent);font-size:1.3rem;flex:none}
.contact-list small{display:block;color:var(--muted);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase}
.contact-list a,.contact-list span:not(.ci){font-weight:600;text-decoration:none;word-break:break-word}
.contact-list a:hover{color:var(--accent)}
.copy{margin:40px 0 0;color:var(--muted);font-size:.88rem}

.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,30px);opacity:0;padding:12px 20px;border-radius:12px;background:var(--accent);color:var(--on-accent);font-weight:600;transition:.3s;pointer-events:none;z-index:200}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* REVEAL */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* RESPONSIVE */
@media (max-width:900px){
  .stats{grid-template-columns:1fr 1fr}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .cards-3,.project-grid,.contact-list{grid-template-columns:1fr}
  .menu-btn{display:grid}
  .nav-links{position:absolute;top:100%;left:0;right:0;flex-direction:column;padding:12px 20px 20px;background:var(--bg);border-bottom:1px solid var(--line);display:none}
  .nav-links.open{display:flex}
  .nav-links a{padding:14px 16px}
  .brand-name{display:none}
}
@media (max-width:520px){
  .tl-title small{display:block;margin:2px 0 0}
  .tl-head{padding:18px 18px}
  .tl-body > ul{padding:0 18px 0 36px}
  .btn{padding:13px 18px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .dot,.caret{animation:none}
}
@media print{
  .nav,.progress,.toast,.resume-frame{display:none}
}