:root{
  --bg:#FAFAFA;
  --surface:#FFFFFF;
  --text:#0B0B0E;
  --text-dim:#52525B;
  --text-faint:#A1A1AA;
  --accent:#2563EB;
  --accent-soft:#EEF2FF;
  --border:#E4E4E7;
  --radius:4px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:'Inter',system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:'Rubik',system-ui,sans-serif;margin:0;}
p{margin:0;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;background:none;border:none;}

/* progress */
.progress-bar{position:fixed;top:0;left:0;height:3px;width:0;background:var(--accent);z-index:1000;}

/* topbar */
.topbar{
  position:sticky;top:0;z-index:900;
  background:color-mix(in srgb, var(--surface) 90%, transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
  padding:16px max(40px, calc((100% - 1100px) / 2));
}
.nav-links{display:flex;gap:30px;}
.nav-link{
  font-size:13px;font-weight:600;color:var(--text-dim);
  position:relative;padding:4px 0;transition:color .2s;
}
.nav-link::after{content:'';position:absolute;left:0;bottom:-2px;height:2px;width:0;background:var(--accent);transition:width .25s ease;}
.nav-link:hover,.nav-link.active{color:var(--text);}
.nav-link.active::after{width:100%;}
.btn-pdf{
  font-size:13px;font-weight:700;padding:9px 18px;border:1px solid var(--text);border-radius:999px;
  transition:background .2s, color .2s;
}
.btn-pdf:hover{background:var(--text);color:#fff;}
.burger{display:none;flex-direction:column;gap:4px;padding:6px;}
.burger span{width:22px;height:2px;background:var(--text);}
.nav-links--mobile{display:none;}

/* hero */
.hero{max-width:1180px;margin:0 auto;padding:72px 40px 0;}
.hero-top{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;}
.hero-text{min-width:0;}
.hero-photo{
  flex-shrink:0;width:168px;height:208px;border:1px solid var(--text);
  overflow:hidden;position:relative;background:var(--card, #f4f4f5);
}
.hero-photo img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  filter:grayscale(1);opacity:0;transition:opacity .35s ease, filter .3s ease;
}
.hero-photo img.loaded{opacity:1;}
.hero-photo:hover img{filter:grayscale(0);}
.hero-name{
  font-weight:900;text-transform:uppercase;
  font-size:clamp(3rem, 10vw, 8.5rem);
  line-height:.88;letter-spacing:-0.03em;
}
.hero-row{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:24px;
  margin-top:28px;padding:32px 0;border-top:1px solid var(--border);
}
.hero-role{font-size:20px;font-weight:700;color:var(--accent);}
.hero-contacts{display:grid;grid-template-columns:repeat(3, minmax(150px, 1fr));gap:10px;}
.hc-item{
  font-size:13px;font-weight:600;color:var(--text-dim);
  border:1px solid var(--border);border-radius:999px;padding:8px 14px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:border-color .2s, color .2s, transform .2s;
}
.hc-item--static{cursor:default;}
button.hc-item:hover{border-color:var(--accent);color:var(--text);transform:translateY(-2px);}

/* stats */
.stats{
  max-width:1180px;margin:0 auto;padding:0 40px;
  display:grid;grid-template-columns:repeat(4,1fr);
  position:relative;
}
.stats::before{content:'';position:absolute;top:0;left:40px;right:40px;height:1px;background:var(--border);}
.stat{
  padding:40px 24px;position:relative;
  display:flex;flex-direction:column;gap:6px;
}
.stat:not(:last-child)::after{content:'';position:absolute;top:20px;bottom:20px;right:0;width:1px;background:var(--border);}
.stat-value{display:flex;align-items:baseline;gap:3px;}
.stat-num{font-family:'Rubik',sans-serif;font-weight:900;font-size:40px;color:var(--text);}
.stat-suffix{font-family:'Rubik',sans-serif;font-weight:900;font-size:24px;color:var(--accent);}
.stat-label{font-size:12.5px;font-weight:600;color:var(--text-dim);line-height:1.4;}

/* blocks */
.block{max-width:1180px;margin:0 auto;padding:72px 40px;position:relative;scroll-margin-top:90px;}
.block::before{content:'';position:absolute;top:0;left:40px;right:40px;height:1px;background:var(--border);}
.block-head h2{font-size:clamp(1.8rem,3.5vw,2.6rem);font-weight:800;letter-spacing:-.02em;margin-bottom:40px;}

/* about */
.about-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:56px;}
.about-text{display:flex;flex-direction:column;gap:16px;}
.about-text p{font-size:16px;line-height:1.75;color:var(--text-dim);max-width:62ch;}
.pull-quote{
  font-family:'Rubik',sans-serif;font-weight:700;font-size:19px;line-height:1.45;
  color:var(--accent);border-left:3px solid var(--accent);padding-left:18px;margin-bottom:36px;
}
.skills-wrap h3{font-size:12px;letter-spacing:1.5px;text-transform:uppercase;color:var(--text-faint);margin-bottom:16px;}
.skills-list{display:flex;flex-wrap:wrap;gap:8px;}
.skills-list span{
  font-size:13px;font-weight:600;color:var(--text-dim);
  padding:7px 14px;border:1px solid var(--border);border-radius:999px;
  transition:color .2s, border-color .2s, transform .2s;
}
.skills-list span:hover{color:var(--accent);border-color:var(--accent);transform:translateY(-1px);}

/* experience */
.exp-list{display:flex;flex-direction:column;}
.exp-row{
  display:grid;grid-template-columns:250px 1fr;gap:32px;
  padding:34px 0;border-bottom:1px solid var(--border);
}
.exp-row:first-child{padding-top:0;}
.exp-year{
  display:flex;align-items:baseline;gap:6px;white-space:nowrap;font-weight:800;font-size:15px;color:var(--text-faint);
  font-family:'Rubik',sans-serif;
}
.exp-row[data-current="true"] .exp-year{color:var(--accent);}
.exp-dash{font-weight:400;opacity:.5;}
.exp-top h3{font-size:19px;font-weight:700;}
.exp-role{font-size:13px;font-weight:700;color:var(--accent);margin-top:6px;}
.exp-desc{font-size:16px;line-height:1.75;color:var(--text-dim);margin-top:12px;max-width:62ch;}
.exp-toggle{
  margin-top:16px;display:inline-flex;align-items:center;gap:7px;
  font-size:13px;font-weight:700;color:var(--text);
  border-bottom:1px solid var(--text);padding-bottom:2px;
}
.exp-toggle svg{transition:transform .25s ease;}
.exp-toggle[aria-expanded="true"] svg{transform:rotate(180deg);}
.exp-results{max-height:0;overflow:hidden;transition:max-height .4s ease, margin-top .4s ease;margin-top:0;}
.exp-results.open{max-height:900px;margin-top:18px;}
.exp-results li{
  position:relative;padding:9px 0 9px 20px;font-size:16px;line-height:1.75;color:var(--text-dim);
  border-top:1px solid var(--border);max-width:62ch;
}
.exp-results li:first-child{border-top:none;}
.exp-results li::before{content:'';position:absolute;left:3px;top:17px;width:5px;height:5px;background:var(--accent);}

/* education */
.edu-list{display:flex;flex-direction:column;}
.edu-row{
  display:grid;grid-template-columns:90px 1fr;gap:24px;align-items:baseline;
  padding:22px 0;border-bottom:1px solid var(--border);
  transition:padding-left .2s, border-color .2s;
}
.edu-row:hover{padding-left:10px;border-color:var(--accent);}
.edu-row:last-child{border-bottom:none;}
.edu-year{font-family:'Rubik',sans-serif;font-weight:800;color:var(--text-faint);font-size:14px;}
.edu-row h4{font-size:15.5px;font-weight:700;}
.edu-row p{font-size:13.5px;color:var(--text-dim);margin-top:4px;}

/* contacts */
.contacts-lead{font-size:16px;color:var(--text-dim);max-width:52ch;margin-bottom:28px;}
.contacts-row{display:flex;gap:14px;flex-wrap:wrap;}
.btn-primary{
  background:var(--text);color:#fff;font-weight:700;font-size:14px;
  padding:14px 26px;border-radius:999px;transition:transform .2s, box-shadow .2s;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 24px -10px rgba(0,0,0,.3);}
.btn-outline{
  border:1px solid var(--border);font-weight:700;font-size:14px;
  padding:14px 26px;border-radius:999px;transition:border-color .2s, color .2s, transform .2s;
}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);}

.footer{max-width:1180px;margin:0 auto;padding:30px 40px 60px;color:var(--text-faint);font-size:12.5px;}

/* to top / toast */
.to-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;
  background:var(--text);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:0 14px 30px -10px rgba(0,0,0,.35);
  opacity:0;pointer-events:none;transform:translateY(10px);transition:opacity .3s, transform .3s;z-index:800;
}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0);}
.toast{
  position:fixed;left:50%;bottom:30px;transform:translate(-50%,20px);
  background:var(--text);color:#fff;padding:10px 18px;border-radius:999px;font-size:13px;font-weight:700;
  opacity:0;transition:opacity .25s, transform .25s;z-index:1000;pointer-events:none;
}
.toast.show{opacity:1;transform:translate(-50%,0);}

/* responsive */
@media(max-width:900px){
  .about-grid{grid-template-columns:1fr;}
  .nav-links{display:none;}
  .burger{display:flex;}
  .nav-links--mobile.open{display:flex;flex-direction:column;gap:16px;padding:16px 40px 22px;position:absolute;top:69px;left:0;right:0;background:var(--surface);border-bottom:1px solid var(--border);}
  .topbar{padding:14px 22px;}
  .hero{padding:48px 22px 0;}
  .hero-top{flex-direction:column-reverse;align-items:flex-start;gap:20px;}
  .hero-photo{width:120px;height:150px;}
  .stats{grid-template-columns:1fr 1fr;padding:0 22px;}
  .stat{padding-top:32px;padding-bottom:32px;}
  .stats::before{left:22px;right:22px;}
  .stat:nth-child(2)::after{display:none;}
  .block{padding:48px 22px;}
  .block::before{left:22px;right:22px;}
  .exp-row{grid-template-columns:1fr;gap:10px;}
}
@media(max-width:520px){
  .stat{padding:28px 16px;}
  .stat-num{font-size:34px;}
  .stat:nth-child(n+3){border-top:1px solid var(--border);}
  .hero-row{flex-direction:column;align-items:center;text-align:center;}
  .hero-contacts{grid-template-columns:1fr;width:100%;max-width:300px;}
}

/* ---------- motion ---------- */
@keyframes lineUp{from{transform:translateY(105%);}to{transform:translateY(0);}}
@keyframes fadeUp{from{opacity:0;transform:translateY(22px);}to{opacity:1;transform:none;}}
@keyframes fadeDown{from{opacity:0;transform:translateY(-100%);}to{opacity:1;transform:none;}}
@keyframes popIn{from{opacity:0;transform:scale(.92) translateY(16px);}to{opacity:1;transform:none;}}

.topbar{animation:fadeDown .7s cubic-bezier(.2,.8,.2,1) both;}
.hero-name .line{display:block;overflow:hidden;padding:.04em .08em;margin:-.04em -.08em;}
.hero-name .line > span{display:block;animation:lineUp 1s cubic-bezier(.2,.8,.2,1) both;}
.hero-name .line:nth-child(2) > span{animation-delay:.12s;}
.hero-photo{animation:popIn .9s cubic-bezier(.2,.8,.2,1) .35s both;}
.hero-row{animation:fadeUp .8s cubic-bezier(.2,.8,.2,1) .55s both;}
.hero-role{background:linear-gradient(100deg,var(--accent) 40%,#7aa2ff 50%,var(--accent) 60%) 0 0/250% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:shine 3.2s ease-in-out 1.6s 1;}
@keyframes shine{from{background-position:100% 0;}to{background-position:0 0;}}

.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.2,.8,.2,1),transform .8s cubic-bezier(.2,.8,.2,1);transition-delay:var(--d,0ms);}
.reveal.in{opacity:1;transform:none;}
.block::before,.stats::before{transform:scaleX(0);transform-origin:left;transition:transform 1.1s cubic-bezier(.2,.8,.2,1);}
.block.in::before,.stats.in::before{transform:scaleX(1);}
.exp-row[data-current="true"] .exp-year{position:relative;}
.exp-row[data-current="true"] .exp-year::before{content:'';position:absolute;left:-14px;top:.55em;width:7px;height:7px;border-radius:50%;background:var(--accent);animation:pulse 2.2s ease-out infinite;}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(37,99,235,.5);}80%,100%{box-shadow:0 0 0 10px rgba(37,99,235,0);}}
@media(max-width:900px){.exp-row[data-current="true"] .exp-year::before{display:none;}}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  .block::before,.stats::before{transform:none;}
  .hero-role{color:var(--accent);background:none;}
}

@page{size:A4;margin:14mm;}
@media print{
  *{-webkit-print-color-adjust:exact;print-color-adjust:exact;}
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .reveal{opacity:1!important;transform:none!important;}
  .stats::before{transform:none!important;}
  .hero-role{color:var(--accent);background:none;}
  .exp-row .exp-year::before{display:none!important;}
  .topbar,.to-top,.toast,.progress-bar{display:none!important;}
  .exp-results{max-height:none!important;overflow:visible!important;margin-top:18px!important;}
  .exp-toggle{display:none;}
  body{background:#fff;}
  .hero{padding:0;max-width:none;}
  .stats{padding:0;max-width:none;margin-top:24px;}
  .stats::before{left:0;right:0;}
  .block{max-width:none;padding:0;break-before:page;page-break-before:always;}
  .block::before{display:none;}
  .block-head h2{margin-bottom:24px;}
  .about-text p,.exp-desc,.exp-results li{font-size:13px;line-height:1.6;max-width:none;}
  .exp-row,.edu-row{break-inside:avoid;page-break-inside:avoid;}
  .exp-row{padding:18px 0;}
  .exp-row:first-child{padding-top:0;}
}