:root{
  --ink:#0B1D26; --panel:#12303B; --line:#1F4350; --paper:#E8EEF0; --muted:#8FA6AF;
  --up:#5FD3A5; --dn:#FF7A6B;
  --serif:'Instrument Serif',Georgia,serif; --sans:'Inter Tight',system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:70px}
body{background:var(--ink);color:var(--paper);font:400 1.05rem/1.65 var(--sans);overflow-x:hidden}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--up);outline-offset:3px}
h1,h2,h3{font-family:var(--serif);font-weight:400;line-height:1.05}
.up{color:var(--up)} .dn{color:var(--dn)}

/* nav */
.nav{position:fixed;inset:0 0 auto 0;z-index:20;display:flex;justify-content:space-between;align-items:center;padding:14px 5vw;background:rgba(11,29,38,.8);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.logo{font:1.6rem var(--serif)}
nav{display:flex;gap:28px;align-items:center;font-size:.95rem}
nav a{color:var(--muted);transition:color .2s}
nav a:hover{color:var(--paper)}
.logo img{height: 3rem; border-radius: 50%; width: 3rem; object-fit: cover;}
.pill{border:1px solid var(--up);color:var(--up)!important;padding:6px 16px;border-radius:99px;transition:.2s}
.pill:hover{background:var(--up);color:var(--ink)!important}
.burger{display:none;background:none;border:0;width:36px;height:30px;cursor:pointer;position:relative}
.burger span{position:absolute;left:6px;right:6px;height:2px;background:var(--paper);transition:.3s}
.burger span:first-child{top:10px}.burger span:last-child{top:18px}
.burger[aria-expanded=true] span:first-child{top:14px;transform:rotate(45deg)}
.burger[aria-expanded=true] span:last-child{top:14px;transform:rotate(-45deg)}

/* hero */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding:110px 5vw 60px;overflow:hidden}
#chart{position:absolute;inset:0;width:100%;height:100%}
.hero-text{position:relative;max-width:760px}
.tag{display:inline-flex;align-items:center;gap:10px;font-size:.9rem;color:var(--muted);border:1px solid var(--line);padding:5px 14px;border-radius:99px;margin-bottom:26px;background:rgba(11,29,38,.6)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--up);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(95,211,165,.6)}100%{box-shadow:0 0 0 12px transparent}}
h1{font-size:clamp(2.8rem,8vw,6.2rem);letter-spacing:-.02em;margin-bottom:24px}
.lead{max-width:540px;color:#B9CBD1;margin-bottom:32px}
.cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{padding:13px 26px;border-radius:99px;font-weight:500;transition:transform .2s,background .2s}
.btn:hover{transform:translateY(-3px)}
.solid{background:var(--up);color:var(--ink)}
.ghost{border:1px solid var(--line);background:rgba(11,29,38,.5)}
.ghost:hover{border-color:var(--paper)}
.stats{position:relative;list-style:none;display:flex;gap:clamp(24px,5vw,64px);margin-top:56px;flex-wrap:wrap}
.stats b{display:block;font:2.6rem/1 var(--serif)}
.stats span{color:var(--muted);font-size:.9rem}
/* hero entrance (the one orchestrated moment) */
.hero-text>*,.stats{opacity:0;transform:translateY(24px);animation:in .8s cubic-bezier(.2,.7,.2,1) forwards}
.hero-text>:nth-child(2){animation-delay:.15s}.hero-text>:nth-child(3){animation-delay:.3s}.hero-text>:nth-child(4){animation-delay:.45s}.stats{animation-delay:.6s}
@keyframes in{to{opacity:1;transform:none}}

/* ticker */
.ticker{overflow:hidden;border-block:1px solid var(--line);background:var(--panel);padding:12px 0}
.track{display:flex;gap:48px;width:max-content;animation:scroll 30s linear infinite;font-size:.9rem;color:var(--muted)}
.track em{font-style:normal;margin-left:6px}
.ticker:hover .track{animation-play-state:paused}
@keyframes scroll{to{transform:translateX(-50%)}}

/* sections */
.sec{padding:110px 5vw;max-width:1180px;margin:auto}
.sec>h2,.split>h2{font-size:clamp(2.2rem,5vw,3.6rem);margin-bottom:40px}
.split{display:grid;grid-template-columns:1fr 1.4fr;gap:40px}
.split p{margin-bottom:18px;color:#B9CBD1;max-width:62ch}
.split strong{color:var(--paper)}
.skills{display:grid;grid-template-columns:repeat(2,1fr);gap:28px 60px}
.skill div{display:flex;justify-content:space-between;margin-bottom:8px;font-size:.95rem}
.skill div span:last-child{color:var(--muted)}
.skill i{display:block;height:4px;background:var(--line);border-radius:4px;position:relative;overflow:hidden}
.skill i::after{content:"";position:absolute;inset:0;background:var(--up);transform:scaleX(0);transform-origin:left;transition:transform 1.2s cubic-bezier(.2,.7,.2,1)}
.skill.on i::after{transform:scaleX(var(--l))}

/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px}
.card{background:var(--panel);border:1px solid var(--line);padding:30px;border-radius:6px 28px 6px 28px;transition:transform .3s,border-color .3s}
.card:hover{transform:translateY(-8px);border-color:var(--up)}
.ret{font:3rem/1 var(--serif);margin-bottom:18px}
.card h3{font-size:1.7rem;margin-bottom:12px}
.card p{color:#B9CBD1;font-size:.98rem;margin-bottom:18px}
.card small{color:var(--muted)}

/* calculator */
.calc{display:grid;grid-template-columns:1fr 1.3fr;gap:36px;background:var(--panel);border:1px solid var(--line);padding:32px;border-radius:6px 28px 6px 28px}
label{display:block;margin-bottom:22px;font-size:.95rem;color:var(--muted)}
label output{float:right;color:var(--paper)}
input[type=range]{width:100%;margin-top:10px;accent-color:var(--up)}
.res{display:flex;gap:30px;flex-wrap:wrap}
.res span{color:var(--muted);font-size:.9rem}
.res b{display:block;font:2rem/1.2 var(--serif);color:var(--paper)}
#fv{color:var(--up)}
#growth{width:100%;height:100%;min-height:220px}

/* timeline */
.timeline{list-style:none;border-left:1px solid var(--line);margin-left:6px}
.timeline li{position:relative;padding:0 0 38px 32px}
.timeline li::before{content:"";position:absolute;left:-6px;top:8px;width:11px;height:11px;border-radius:50%;background:var(--up)}
.timeline time{color:var(--up);font-size:.9rem}
.timeline h3{font-size:1.8rem;margin:2px 0 6px}
.timeline p{color:#B9CBD1;max-width:60ch}

/* contact */
.contact{text-align:center}
.contact p{color:#B9CBD1;margin-bottom:20px}
.mail{display:inline-block;font:clamp(1.8rem,6vw,4rem) var(--serif);border-bottom:1px solid var(--up);transition:color .2s}
.mail:hover{color:var(--up)}
.links{display:flex;justify-content:center;gap:28px;margin-top:34px;color:var(--muted)}
.links a:hover{color:var(--paper)}
footer{text-align:center;padding:30px 5vw;border-top:1px solid var(--line);color:var(--muted);font-size:.85rem}

/* reveal on scroll */
.rv{opacity:0;transform:translateY(30px);transition:.8s cubic-bezier(.2,.7,.2,1)}
.rv.on{opacity:1;transform:none}

/* responsive */
@media(max-width:820px){
  .burger{display:block}
  nav{position:fixed;top:61px;left:0;right:0;flex-direction:column;gap:0;background:var(--ink);border-bottom:1px solid var(--line);max-height:0;overflow:hidden;transition:max-height .4s}
  nav.open{max-height:420px}
  nav a{padding:16px 5vw;width:100%}
  .pill{border:0;border-radius:0}
  .split,.calc,.skills{grid-template-columns:1fr}
  .sec{padding:80px 5vw}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .hero-text>*,.stats,.rv{opacity:1;transform:none}
  .skill i::after{transform:scaleX(var(--l))}
}

/* chips + certificates */
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:14px}
.chips li{font:1.7rem var(--serif);padding:12px 26px;border:1px solid var(--line);border-radius:99px;background:var(--panel);transition:.25s}
.chips li:hover{border-color:var(--up);color:var(--up);transform:translateY(-4px)}
.cert small{display:block;margin-bottom:10px}
.cert h3{font-size:1.5rem}
.lnk{color:var(--up);border-bottom:1px solid var(--up)}