/* oleksiipodpriatov.com — общий стиль. Тёплая бумага, тёмно-синий акцент, тёмная тема по системе. */
:root{
  --ink:#14161a; --ink-2:#3d434f; --mut:#5f6672; --faint:#8a919d;
  --paper:#fbfaf8; --sunk:#f3f1ec; --card:#ffffff; --line:#e6e3dd; --line-2:#d5d1c9;
  --accent:#1f3a5f; --accent-ink:#ffffff; --good:#1d7a4f;
  --s1:#2a78d6; --s2:#eb6834;
  --wide:1080px; --col:720px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --ink:#f0f2f6; --ink-2:#c2c8d2; --mut:#959dab; --faint:#6b7482;
    --paper:#0e1014; --sunk:#151920; --card:#141820; --line:#232830; --line-2:#333944;
    --accent:#9dc0e8; --accent-ink:#0e1014; --good:#5cc08f;
    --s1:#3987e5; --s2:#d95926;
  }
}
:root[data-theme="dark"]{
  --ink:#f0f2f6; --ink-2:#c2c8d2; --mut:#959dab; --faint:#6b7482;
  --paper:#0e1014; --sunk:#151920; --card:#141820; --line:#232830; --line-2:#333944;
  --accent:#9dc0e8; --accent-ink:#0e1014; --good:#5cc08f;
  --s1:#3987e5; --s2:#d95926;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);
  font:400 17px/1.65 'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none;box-shadow:inset 0 -1px 0 0 var(--line-2);transition:box-shadow .15s}
a:hover{box-shadow:inset 0 -1px 0 0 currentColor}
code{font-family:'JetBrains Mono',ui-monospace,Menlo,monospace;font-size:.86em;background:var(--sunk);
  padding:.12em .4em;border-radius:4px;white-space:nowrap}
.wrap{max-width:var(--wide);margin:0 auto;padding:0 24px}
.narrow{max-width:var(--col)}
.mut{color:var(--mut)}
.small{font-size:.92rem;line-height:1.6}
h1,h2,.serif{font-family:'Newsreader',Georgia,serif;font-weight:500;letter-spacing:-.02em}
h1{font-size:clamp(2.5rem,7vw,3.9rem);line-height:1.04;margin:0}
h2{font-size:clamp(1.6rem,3.6vw,2.15rem);line-height:1.15;margin:0 0 .6em}
h3{font:600 1.05rem/1.4 'Inter',sans-serif;margin:0 0 .35em;letter-spacing:-.006em}
p{margin:0 0 1.05em}
.eyebrow{font:600 11.5px/1 'Inter',sans-serif;letter-spacing:.15em;text-transform:uppercase;color:var(--faint);margin:0 0 18px}

/* ---- навигация ---- */
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0}
.nav .me{font:600 .98rem/1 'Inter',sans-serif;color:var(--ink);box-shadow:none}
.nav ul{display:flex;flex-wrap:wrap;gap:6px 20px;list-style:none;margin:0;padding:0;font-size:.95rem}
.nav ul a{color:var(--ink-2);box-shadow:none}
.nav ul a:hover{color:var(--accent)}

/* ---- главный экран ---- */
.hero{display:grid;grid-template-columns:auto 1fr;gap:36px;align-items:center;padding:clamp(36px,7vw,72px) 0 28px}
.hero img{width:168px;height:168px;border-radius:50%;object-fit:cover;border:1px solid var(--line)}
.role{display:flex;flex-wrap:wrap;gap:8px 10px;align-items:center;font:500 .93rem/1.3 'Inter',sans-serif;color:var(--mut);margin:16px 0 0}
.role .dot{width:3px;height:3px;border-radius:50%;background:var(--line-2)}
.lede{font-family:'Newsreader',Georgia,serif;font-size:clamp(1.3rem,2.8vw,1.6rem);line-height:1.4;color:var(--ink-2);
  margin:26px 0 0;max-width:36ch;letter-spacing:-.01em}
.avail{display:flex;flex-wrap:wrap;gap:18px 28px;align-items:center;justify-content:space-between;
  background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px 24px;margin:8px 0 0}
.avail p{margin:0;max-width:60ch}
.avail .live{display:inline-flex;align-items:center;gap:8px;font-weight:600}
.avail .live i{width:8px;height:8px;border-radius:50%;background:var(--good);box-shadow:0 0 0 4px color-mix(in srgb,var(--good) 18%,transparent)}
.btns{display:flex;flex-wrap:wrap;gap:10px}
.btn{display:inline-flex;align-items:center;gap:8px;font:600 .95rem/1 'Inter',sans-serif;padding:13px 18px;border-radius:10px;
  box-shadow:none;border:1px solid var(--line-2);color:var(--ink);background:var(--paper)}
.btn:hover{box-shadow:none;border-color:var(--ink-2)}
.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.btn.primary:hover{filter:brightness(1.08)}

/* ---- цифры ---- */
.proof{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin:34px 0 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.proof div{padding:22px 18px 20px 0}
.proof div + div{padding-left:18px;border-left:1px solid var(--line)}
.proof b{display:block;font:500 clamp(1.6rem,3vw,2.1rem)/1.1 'Newsreader',Georgia,serif;letter-spacing:-.02em;margin-bottom:6px}
.proof span{font-size:.9rem;line-height:1.5;color:var(--mut);display:block}

/* ---- разделы ---- */
section{padding:clamp(48px,7vw,80px) 0;border-top:1px solid var(--line)}
section.first{border-top:none}
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.card{display:flex;flex-direction:column;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:22px 22px 18px;color:var(--ink);box-shadow:none;transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--ink-2);box-shadow:none;transform:translateY(-1px)}
.card .where{font:500 .8rem/1.3 'Inter',sans-serif;color:var(--faint);letter-spacing:.02em}
.card h3{font:500 1.32rem/1.25 'Newsreader',Georgia,serif;letter-spacing:-.012em;margin:0}
.card p{margin:0;color:var(--ink-2);font-size:.97rem;line-height:1.55}
.card .more{margin-top:auto;padding-top:6px;font-weight:600;font-size:.92rem;color:var(--accent)}
.tag{display:inline-block;font:500 .78rem/1 'Inter',sans-serif;color:var(--ink-2);border:1px solid var(--line-2);
  border-radius:999px;padding:6px 10px;margin:0 6px 6px 0}
.tag.wip{border-color:color-mix(in srgb,var(--s2) 55%,var(--line-2));color:var(--s2)}
.tags{margin:2px 0 0}

.two{display:grid;grid-template-columns:1fr 1fr;gap:20px 48px}
/* рекомендация (18.10): цитата из письма руководителя в Академии наук */
.quote{margin:0;padding:22px 24px;background:var(--card);border:1px solid var(--line);border-left:3px solid var(--accent);
  border-radius:0 14px 14px 0}
.quote p{font:400 1.2rem/1.5 'Newsreader',Georgia,serif;color:var(--ink);margin:0 0 .7em}
.quote p.by{font:400 .9rem/1.5 'Inter',sans-serif;color:var(--mut);margin:0}
.letter p{max-width:62ch}
.letter .sig{margin-top:28px;color:var(--ink-2)}
ul.ticks{list-style:none;padding:0;margin:0}
ul.ticks li{position:relative;padding:10px 0 10px 26px;border-top:1px solid var(--line)}
ul.ticks li:first-child{border-top:none}
ul.ticks li::before{content:"";position:absolute;left:2px;top:19px;width:10px;height:6px;
  border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}

.hist{list-style:none;padding:0;margin:0}
.hist li{display:grid;grid-template-columns:130px 1fr;gap:18px;padding:16px 0;border-top:1px solid var(--line)}
.hist li:first-child{border-top:none}
.hist .when{font:400 .86rem/1.5 'JetBrains Mono',ui-monospace,monospace;color:var(--faint)}
.hist b{font-weight:600}

/* ---- страница проекта ---- */
.crumb{font-size:.92rem;margin:8px 0 0}
.crumb a{box-shadow:none;color:var(--mut)}
.crumb a:hover{color:var(--accent)}
.case-head{padding:clamp(28px,5vw,48px) 0 10px}
.case-head h1{font-size:clamp(2.1rem,5.4vw,3.1rem);line-height:1.08;max-width:22ch}
.meta{display:flex;flex-wrap:wrap;gap:8px 18px;margin:18px 0 0;color:var(--mut);font-size:.93rem}
.meta b{color:var(--ink-2);font-weight:600}
.case h2{font-size:clamp(1.35rem,2.6vw,1.65rem);margin:42px 0 .5em}
.case ul{padding-left:1.15em;margin:0 0 1.05em}
.case li{margin:.35em 0}
.results{width:100%;border-collapse:collapse;margin:8px 0 6px;font-size:.96rem}
.results th,.results td{text-align:left;padding:11px 10px 11px 0;border-bottom:1px solid var(--line)}
.results th{font:600 .78rem/1.2 'Inter',sans-serif;letter-spacing:.06em;text-transform:uppercase;color:var(--faint)}
.results td.num{font-family:'JetBrains Mono',ui-monospace,monospace;font-size:.9rem;white-space:nowrap}
.results td.good{color:var(--good);font-weight:600}
.callout{background:var(--sunk);border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin:22px 0}
.callout p:last-child{margin:0}
.relevant{margin:34px 0 0;padding:20px 22px;border:1px dashed var(--line-2);border-radius:12px}
.relevant p{margin:0 0 10px;font-weight:600}
.cta{margin:46px 0 0;padding:26px 24px;background:var(--card);border:1px solid var(--line);border-radius:14px;
  display:flex;flex-wrap:wrap;gap:16px 24px;align-items:center;justify-content:space-between}
.cta p{margin:0;max-width:46ch}
.next{display:flex;justify-content:space-between;gap:16px;margin:30px 0 0;font-size:.95rem}

/* ---- график ---- */
figure{margin:24px 0 0;padding:22px 20px 18px;background:var(--sunk);border:1px solid var(--line);border-radius:12px}
.fig-t{font:600 .95rem/1.4 'Inter',sans-serif;margin:0 0 3px}
.fig-s{font-size:.88rem;color:var(--mut);margin:0 0 16px}
figcaption{font-size:.88rem;line-height:1.6;color:var(--mut);margin-top:14px}
.plot{overflow-x:auto}
.chart{width:100%;min-width:460px;height:auto;display:block}
.chart .grid{stroke:var(--line-2);stroke-width:1}
.chart .when{font:500 11.5px/1 'Inter',sans-serif;fill:var(--mut);letter-spacing:.09em;text-transform:uppercase}
.chart .line{fill:none;stroke-width:2;stroke-linecap:round}
.chart .dotc{stroke:var(--sunk);stroke-width:2}
.chart .val{font:500 14px/1 'Inter',sans-serif;fill:var(--ink)}
.chart .nm{font:400 13px/1 'Inter',sans-serif;fill:var(--ink-2)}

/* ---- выделения: где работал и главные цифры ---- */
:root{--hl:color-mix(in srgb,var(--s1) 17%,transparent)}
.orgs{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:baseline;margin:20px 0 0;font-size:.95rem;color:var(--mut)}
.orgs b{font:500 1.22rem/1.1 'Newsreader',Georgia,serif;letter-spacing:-.01em;color:var(--ink)}
.orgs .dot{width:3px;height:3px;border-radius:50%;background:var(--line-2);align-self:center}
.org{color:var(--accent);font-weight:600}
.proof span b{display:inline;font:inherit;font-weight:600;color:var(--ink);margin:0;letter-spacing:normal}
.card .where b{color:var(--accent);font-weight:600}
.meta .pill{display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;background:var(--card);
  border:1px solid var(--line-2);color:var(--ink);font-weight:600}
/* маркер на всю высоту строки, на каждой строке свой (12.10: полоса на нижней половине букв выглядела как сбой) */
.hl{background-image:linear-gradient(var(--hl),var(--hl));background-repeat:no-repeat;background-position:0 0;
  background-size:100% 100%;padding:.08em .2em;margin:0 -.05em;border-radius:4px;color:var(--ink);
  -webkit-box-decoration-break:clone;box-decoration-break:clone}

/* ---- фигуры с цифрами и механизмом ---- */
.sbar{display:grid;grid-template-columns:62px 1fr 96px;gap:12px;align-items:center;margin:10px 0}
.sbar .k{font:600 .84rem/1 'Inter',sans-serif;color:var(--mut)}
.sbar .track{height:14px;border-radius:7px;background:color-mix(in srgb,var(--line-2) 55%,transparent);overflow:hidden}
.sbar .fill{display:block;height:100%;width:var(--w);border-radius:7px}
.sbar .before{background:var(--faint)}
.sbar .after{background:var(--good)}
.sbar .v{font:500 .9rem/1 'JetBrains Mono',ui-monospace,monospace;white-space:nowrap}
.sbar .v.good{color:var(--good);font-weight:600}
.x16{margin:14px 0 0;color:var(--ink-2)}
.x16 b{font:500 2rem/1 'Newsreader',Georgia,serif;color:var(--good);margin-right:6px}

.keys{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin:4px 0 18px}
.kcell{display:flex;flex-direction:column;gap:6px}
.kcell small{font:600 .74rem/1 'Inter',sans-serif;letter-spacing:.08em;text-transform:uppercase;color:var(--faint)}
.kcell code{font-size:1.15rem;padding:.3em .6em;white-space:nowrap}
.kcell .raw{text-decoration:line-through;color:var(--faint);margin-right:.45em}
.kop{font:500 1.6rem/1 'Inter',sans-serif;position:relative;width:1.1em;text-align:center;margin-top:18px}
.kop .ne{display:none}
.kop .eq{color:var(--good)}
.mbar .track{position:relative;display:block;height:16px;border-radius:8px;background:color-mix(in srgb,var(--line-2) 55%,transparent)}
.mbar .fill{display:block;height:100%;width:97%;border-radius:8px;background:var(--good)}
.mbar .mark{position:absolute;top:-5px;bottom:-5px;left:72.7%;width:2px;background:var(--ink-2)}
.mbar .lbls{display:flex;justify-content:space-between;gap:12px;margin:10px 0 0;font-size:.88rem;color:var(--mut)}
.mbar .lbls b{color:var(--ink);font-weight:600}

.svgfig{width:100%;min-width:500px;height:auto;display:block}
.svgfig .box rect{fill:var(--card);stroke:var(--line-2);stroke-width:1}
.svgfig .box text,.svgfig .t{font:500 13px/1 'Inter',sans-serif;fill:var(--ink)}
.svgfig .hub rect{fill:color-mix(in srgb,var(--s1) 12%,var(--card));stroke:var(--s1);stroke-width:1.4}
.svgfig .hub text{font:600 13px/1 'Inter',sans-serif;fill:var(--ink)}
.svgfig .sub{font:400 11.5px/1 'Inter',sans-serif;fill:var(--mut)}
.svgfig .cap{font:600 10.5px/1 'Inter',sans-serif;fill:var(--faint);letter-spacing:.09em;text-transform:uppercase}
.svgfig .wire{fill:none;stroke:var(--s1);stroke-width:1.6;stroke-linecap:round}
.svgfig .ok{fill:var(--good)}
.svgfig .r{fill:var(--s1)}
.svgfig .arrow{fill:none;stroke:var(--faint);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}

/* анимации — только на экране и только если система не просит меньше движения; без скрипта видно конечное состояние */
@media screen and (prefers-reduced-motion:no-preference){
  .js .hl{background-size:0 100%;transition:background-size .9s cubic-bezier(.2,.7,.2,1) .15s}
  .js .hl.in{background-size:100% 100%}

  .js [data-anim="slope"] .line{stroke-dasharray:1;stroke-dashoffset:1;transition:stroke-dashoffset 1.1s cubic-bezier(.3,.6,.2,1) .2s}
  .js [data-anim="slope"] .end{opacity:0;transition:opacity .45s ease 1.25s}
  .js [data-anim="slope"].in .line{stroke-dashoffset:0}
  .js [data-anim="slope"].in .end{opacity:1}

  .js [data-anim="speed"] .fill{width:0}
  .js [data-anim="speed"] .before{transition:width 1.5s cubic-bezier(.4,.1,.6,1) .15s}
  .js [data-anim="speed"] .after{transition:width .35s ease-out 1.85s}
  .js [data-anim="speed"] .v,.js [data-anim="speed"] .x16{opacity:0;transition:opacity .4s ease}
  .js [data-anim="speed"] .v.b{transition-delay:1.6s}
  .js [data-anim="speed"] .v.a{transition-delay:2.2s}
  .js [data-anim="speed"] .x16{transition-delay:2.5s}
  .js [data-anim="speed"].in .fill{width:var(--w)}
  .js [data-anim="speed"].in .v,.js [data-anim="speed"].in .x16{opacity:1}

  .js [data-anim="match"] .fill{width:0}
  .js [data-anim="match"] .kcell .raw{text-decoration:none;color:var(--ink);margin-right:0}
  .js [data-anim="match"] .kcell .norm{display:inline-block;max-width:0;overflow:hidden;vertical-align:bottom;opacity:0}
  .js [data-anim="match"] .kop .ne{display:block;color:#c0392b}
  .js [data-anim="match"] .kop .eq{position:absolute;inset:0;opacity:0}
  .js [data-anim="match"] .lbls .after{opacity:0}
  .js [data-anim="match"].in .fill{animation:fillmatch 2.8s cubic-bezier(.3,.6,.2,1) forwards}
  .js [data-anim="match"].in .kcell .raw{animation:strike .4s ease 1.3s forwards}
  .js [data-anim="match"].in .kcell .norm{animation:reveal .5s ease 1.5s forwards}
  .js [data-anim="match"].in .kop .ne{animation:fadeout .3s ease 1.5s forwards}
  .js [data-anim="match"].in .kop .eq{animation:fadein .3s ease 1.6s forwards}
  .js [data-anim="match"].in .lbls .after{animation:fadein .4s ease 2.6s forwards}

  .js [data-anim="map"] .wire{stroke-dasharray:1;stroke-dashoffset:1;transition:stroke-dashoffset .7s ease calc(.2s + var(--i) * .35s)}
  .js [data-anim="map"] .ok{opacity:0;transition:opacity .3s ease calc(.8s + var(--i) * .35s)}
  .js [data-anim="map"] .part{opacity:0;transform:translateX(-26px);transition:opacity .5s ease,transform .5s ease;
    transition-delay:calc(2.2s + var(--i) * .22s)}
  .js [data-anim="map"].in .wire{stroke-dashoffset:0}
  .js [data-anim="map"].in .ok,.js [data-anim="map"].in .part{opacity:1;transform:none}

  .js [data-anim="flow"] .wire{stroke-dasharray:1;stroke-dashoffset:1;transition:stroke-dashoffset .8s ease calc(.15s + var(--i) * .15s)}
  .js [data-anim="flow"] .hub{opacity:.25;transition:opacity .5s ease 1.05s}
  .js [data-anim="flow"] .r{opacity:.12;transition:opacity .2s ease calc(1.5s + var(--i) * 55ms)}
  .js [data-anim="flow"] .n21{opacity:0;transition:opacity .4s ease 2.75s}
  .js [data-anim="flow"].in .wire{stroke-dashoffset:0}
  .js [data-anim="flow"].in .hub,.js [data-anim="flow"].in .r,.js [data-anim="flow"].in .n21{opacity:1}
}
@keyframes fillmatch{0%{width:0}42%{width:72.7%}62%{width:72.7%}100%{width:97%}}
@keyframes strike{to{text-decoration:line-through;color:var(--faint);margin-right:.45em}}
@keyframes reveal{to{max-width:4em;opacity:1}}
@keyframes fadein{to{opacity:1}}
@keyframes fadeout{to{opacity:0}}

footer{padding:40px 0 70px;border-top:1px solid var(--line);margin-top:20px;display:flex;flex-wrap:wrap;
  gap:10px 24px;align-items:center;justify-content:space-between;font-size:.95rem}
footer .links{display:flex;flex-wrap:wrap;gap:10px 22px}

@media (max-width:860px){
  .proof{grid-template-columns:1fr 1fr}
  .proof div:nth-child(3){padding-left:0;border-left:none}
  .proof div:nth-child(n+3){border-top:1px solid var(--line)}
  .cards,.two{grid-template-columns:1fr}
}
@media (max-width:600px){
  body{font-size:16px}
  .hero{grid-template-columns:1fr;gap:22px}
  .hero img{width:120px;height:120px}
  .hist li{grid-template-columns:1fr;gap:4px}
  .sbar{grid-template-columns:50px 1fr 82px;gap:8px}
  .orgs b{font-size:1.1rem}
  .nav{flex-wrap:wrap;gap:10px 16px}
  .nav .me{white-space:nowrap}
  .nav ul{gap:6px 14px;font-size:.9rem}
}