/* Юрий Кононов — CTO. Styles. */
:root{
  --bg:#fafaf8;
  --panel:#fff;
  --ink:#16181c;
  --ink-2:#4a4c50;
  --ink-3:#5a5c60;
  --ink-4:#6a6c70;
  --mute:#8b8d92;
  --line:#e4e2dc;
  --line-2:#eceae4;
  --accent:#2a63c8;
  --accent-2:#1c4fa8;
  --card-shadow:0 16px 32px rgba(22,24,28,.08);
  --focus:0 0 0 3px rgba(42,99,200,.35);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:hidden}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'Golos Text',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
a:focus-visible,button:focus-visible{outline:none;box-shadow:var(--focus);border-radius:4px}
img{max-width:100%;display:block}
h1,h2,h3,h4{margin:0}
ul{margin:0;padding-left:16px}
p{margin:0}
button{cursor:pointer;font:inherit}
.mono{font-family:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace}

.skip{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip:focus{position:fixed;top:12px;left:12px;width:auto;height:auto;background:#fff;padding:10px 14px;border-radius:6px;z-index:200;box-shadow:0 6px 18px rgba(22,24,28,.18)}

@keyframes ykup{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:none}}
@keyframes ykfade{from{opacity:0}to{opacity:1}}
@keyframes ykmarquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@keyframes ykpulse{0%,100%{opacity:1}50%{opacity:.35}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001s!important;animation-iteration-count:1!important;transition-duration:.001s!important;scroll-behavior:auto!important}
}

/* Header */
.site-header{position:sticky;top:0;z-index:50;display:flex;justify-content:space-between;align-items:center;padding:18px 56px;background:rgba(250,250,248,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:24px}
.brand-logo{font:600 16px 'IBM Plex Mono',monospace;color:var(--ink)}
.brand-tg{display:flex;align-items:center;gap:6px;font-size:14px;color:var(--accent);font-weight:500}
.brand-tg:hover{color:var(--ink)}
.brand-tg svg{width:16px;height:16px}
.main-nav{display:flex;gap:32px;font-size:14px;color:var(--ink-3);white-space:nowrap}
.main-nav a:hover{color:var(--ink)}
.lang-switch{display:flex;gap:2px;font:500 12px 'IBM Plex Mono',monospace}
.lang-switch a,.lang-switch span{padding:6px 10px;border-radius:4px;color:var(--mute)}
.lang-switch a:hover{color:var(--ink)}
.lang-switch .current{background:var(--ink);color:#fff}

/* Hero */
.hero{display:grid;grid-template-columns:1fr 340px;gap:60px;padding:80px 56px 72px;align-items:center;max-width:1180px;margin:0 auto;background-image:linear-gradient(rgba(22,24,28,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(22,24,28,.05) 1px,transparent 1px);background-size:44px 44px}
.hero-content{display:flex;flex-direction:column;gap:24px}
.eyebrow{display:flex;align-items:center;gap:10px;font:500 13px 'IBM Plex Mono',monospace;color:var(--accent);letter-spacing:.08em;animation:ykup .6s ease .05s backwards}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);animation:ykpulse 2.4s ease infinite;flex:none}
.hero h1{font:700 58px/1.06 'Golos Text',sans-serif;letter-spacing:-.02em;animation:ykup .7s ease .15s backwards}
.hero p.lead{font-size:19px;line-height:1.55;color:var(--ink-2);max-width:560px;text-wrap:pretty;animation:ykup .7s ease .28s backwards}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:8px;animation:ykup .7s ease .4s backwards}
.btn{padding:14px 26px;border-radius:6px;font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:8px;transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease, background .25s ease}
.btn-primary{background:var(--ink);color:#fff;border:1.5px solid var(--ink)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(22,24,28,.22);color:#fff}
.btn-ghost{border:1.5px solid #d4d2cc;color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink)}
.hero-photo{position:relative;width:340px;height:430px;animation:ykfade .9s ease .2s backwards}
.hero-photo .bg{position:absolute;left:0;right:0;bottom:0;height:270px;background:#eceade;border-radius:10px}
.hero-photo .corner{position:absolute;width:14px;height:14px}
.hero-photo .c1{left:14px;top:174px;border-left:2px solid var(--accent);border-top:2px solid var(--accent)}
.hero-photo .c2{right:14px;top:174px;border-right:2px solid var(--accent);border-top:2px solid var(--accent)}
.hero-photo .c3{left:14px;bottom:14px;border-left:2px solid var(--accent);border-bottom:2px solid var(--accent)}
.hero-photo .c4{right:14px;bottom:14px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent)}
.hero-photo img{position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:322px;height:auto;max-width:100%;object-fit:contain;filter:drop-shadow(0 16px 22px rgba(22,24,28,.16))}
.hero-photo .fig{position:absolute;right:20px;top:190px;font:500 11px 'IBM Plex Mono',monospace;color:var(--ink-4);letter-spacing:.06em}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);max-width:1180px;margin:0 auto}
.stats .cell{padding:28px 32px;border-right:1px solid var(--line)}
.stats .cell:last-child{border-right:none}
.stats .num{font:600 52px 'IBM Plex Mono',monospace;letter-spacing:-.04em;white-space:nowrap}
.stats .lbl{font-size:13px;color:var(--ink-4);margin-top:4px}

/* Marquee */
.marquee{overflow:hidden;padding:20px 0;border-bottom:1px solid var(--line);background:#fff}
.marquee-row{display:flex;gap:44px;width:max-content;animation:ykmarquee 36s linear infinite;font:500 13px 'IBM Plex Mono',monospace;color:var(--mute);white-space:nowrap}
.brands-marquee{overflow:hidden;padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
.brands-marquee .marquee-row{gap:64px;animation-duration:42s;align-items:center;font:600 17px 'Golos Text',sans-serif;color:var(--ink-4)}
.brand-chip{display:flex;align-items:center;gap:10px;white-space:nowrap}
.brand-chip img{width:24px;height:24px;border-radius:5px;object-fit:contain;background:#fff}
.brand-chip .mark{width:24px;height:24px;border-radius:5px;background:linear-gradient(135deg,#2a63c8,#7bb1ff);display:inline-flex;align-items:center;justify-content:center;color:#fff;font:600 11px 'IBM Plex Mono',monospace}

/* Interactive SDLC pipeline */
.sdlc{border:1px solid var(--line);border-radius:14px;background:var(--panel);padding:36px;display:flex;flex-direction:column;gap:24px}
.sdlc-head{display:flex;flex-direction:column;gap:8px}
.sdlc-hint{font-size:14px;color:var(--ink-4);line-height:1.5}
.sdlc-chain{display:flex;flex-wrap:wrap;align-items:center;gap:10px;list-style:none;padding:0;margin:0}
.sdlc-chain>li{list-style:none;display:flex;align-items:center;gap:10px;margin:0}
.sdlc-btn{background:#fff;border:1px solid var(--line);padding:10px 18px;border-radius:30px;font:500 14px 'Golos Text',sans-serif;color:var(--ink);cursor:pointer;transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease, background .25s ease, color .25s ease;display:inline-flex;align-items:center;gap:8px;white-space:nowrap}
.sdlc-btn:hover{border-color:#bfdbfe;color:var(--accent);transform:translateY(-2px);box-shadow:0 4px 12px rgba(42,99,200,.08)}
.sdlc-btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(42,99,200,.35)}
.sdlc-btn[aria-selected="true"]{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 6px 16px rgba(42,99,200,.28);transform:translateY(-2px)}
.sdlc-btn .n{font:600 11px 'IBM Plex Mono',monospace;opacity:.7}
.sdlc-btn[aria-selected="true"] .n{opacity:.9}
.sdlc-arr{color:#cbd5e1;font:500 14px 'IBM Plex Mono',monospace;user-select:none}
.sdlc-panel{background:#f8fafc;border:1px solid var(--line);border-radius:14px;padding:24px;position:relative;overflow:hidden}
.sdlc-panel::before{content:'';position:absolute;top:0;left:0;width:4px;height:100%;background:var(--accent);border-radius:4px 0 0 4px}
.sdlc-panel h3{font:600 18px 'Golos Text',sans-serif;color:var(--ink);margin:0 0 16px}
.sdlc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.sdlc-card{background:#fff;padding:14px 16px;border-radius:10px;border:1px solid var(--line)}
.sdlc-card .lbl{font:600 11px 'IBM Plex Mono',monospace;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-4);margin-bottom:6px}
.sdlc-card .val{font-size:13.5px;color:var(--ink);font-weight:500;line-height:1.45}
.sdlc-foot{margin-top:4px;padding-top:16px;border-top:1px dashed var(--line);font-size:13px;color:var(--ink-4);display:flex;align-items:center;gap:8px}
@media (max-width: 768px){
  .sdlc{padding:24px;gap:20px}
  .sdlc-arr{display:none}
  .sdlc-chain{gap:8px}
  .sdlc-chain>li{flex:1 1 calc(50% - 4px);min-width:0}
  .sdlc-btn{width:100%;justify-content:center;padding:10px 12px;font-size:13px}
}
@media (max-width: 480px){
  .sdlc-chain>li{flex:1 1 100%}
}

/* Section shell */
section{scroll-margin-top:80px}
.section{padding:72px 56px;max-width:1180px;margin:0 auto;display:flex;flex-direction:column;gap:28px}
.section-tight{padding:0 56px 72px}
.section-head{display:flex;flex-direction:column;gap:12px}
.kicker{font:500 12px 'IBM Plex Mono',monospace;color:var(--accent);letter-spacing:.08em}
.section h2{font:700 42px 'Golos Text',sans-serif;letter-spacing:-.015em}
.subtitle{color:var(--ink-4);font-size:16px;line-height:1.6;max-width:820px}

/* Grid cards */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{padding:28px;border:1px solid var(--line);border-radius:8px;background:var(--panel);display:flex;flex-direction:column;gap:16px}
.card h3{font-weight:600;font-size:17px}
.card ul{font-size:14px;line-height:1.55;color:var(--ink-2);display:flex;flex-direction:column;gap:6px}
.card .metrics{border-top:1px solid var(--line-2);padding-top:14px;display:flex;flex-direction:column;gap:6px}
.card .metrics .lbl{font:500 11px 'IBM Plex Mono',monospace;color:var(--accent);letter-spacing:.08em}
.card .metrics .val{font-size:13px;line-height:1.6;color:var(--ink-4)}
.card-lg{padding:32px;gap:18px}
.result-list{display:flex;flex-direction:column;gap:14px;font-size:15px;line-height:1.55;color:var(--ink-2)}
.result-list .row{display:grid;grid-template-columns:20px 1fr;gap:10px}
.result-list .row .arr{color:var(--accent)}

.service{transition:transform .3s ease, box-shadow .3s ease}
.service:hover{transform:translateY(-6px);box-shadow:var(--card-shadow)}
.service .idx{font:600 38px 'IBM Plex Mono',monospace;color:var(--accent);letter-spacing:-.03em}
.service p{font-size:14px;line-height:1.55;color:var(--ink-3)}

/* Experience */
.timeline{display:flex;flex-direction:column}
.tl-row{display:grid;grid-template-columns:200px 1fr;gap:32px;padding:26px 0;border-top:1px solid var(--line)}
.tl-row:last-child{border-bottom:1px solid var(--line)}
.tl-date{font:500 13px 'IBM Plex Mono',monospace;color:var(--ink-4)}
.tl-title{font-weight:600;font-size:18px}
.tl-body ul{margin:10px 0 0;padding-left:18px;font-size:15px;line-height:1.6;color:var(--ink-2);max-width:680px;display:flex;flex-direction:column;gap:6px}

/* About */
.about{display:grid;grid-template-columns:1fr 1fr;gap:48px;padding:0 56px 72px;max-width:1180px;margin:0 auto}
.about .col{display:flex;flex-direction:column;gap:12px}
.about .val{font-size:15px;line-height:1.6;color:var(--ink-2)}

/* FAQ */
.faq{display:flex;flex-direction:column;gap:12px}
.faq details{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:18px 22px}
.faq details[open]{border-color:var(--accent)}
.faq summary{cursor:pointer;font-weight:600;font-size:16px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font:500 20px 'IBM Plex Mono',monospace;color:var(--accent);transition:transform .2s ease}
.faq details[open] summary::after{content:"−"}
.faq .a{margin-top:12px;color:var(--ink-2);font-size:15px;line-height:1.6}

/* Footer */
.site-footer{background:var(--ink);color:#fff}
.footer-inner{max-width:1180px;margin:0 auto;padding:56px;display:flex;justify-content:space-between;align-items:center;gap:40px;flex-wrap:wrap}
.footer-title{font:600 28px 'Golos Text',sans-serif}
.footer-sub{font-size:15px;color:#9a9da6}
.footer-links{display:flex;gap:14px;font:500 14px 'IBM Plex Mono',monospace;flex-wrap:wrap}
.footer-links a{padding:12px 22px;border:1px solid #3a3d44;border-radius:6px;color:#fff;transition:border-color .25s ease, transform .25s ease}
.footer-links a:hover{border-color:#fff;color:#fff;transform:translateY(-3px)}
.footer-links a.tg{background:#fff;color:var(--ink);border-color:#fff}
.footer-links a.tg:hover{color:var(--ink);transform:translateY(-3px)}
.footer-meta{max-width:1180px;margin:0 auto;padding:0 56px 28px;font:400 12px 'IBM Plex Mono',monospace;color:#6a6d76;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.footer-meta a{color:#9a9da6}
.footer-meta a:hover{color:#fff}

/* Reveal */
[data-reveal]{opacity:0;transform:translateY(26px);transition:opacity .7s ease, transform .7s ease}
[data-reveal].is-in{opacity:1;transform:none}
.no-js [data-reveal]{opacity:1;transform:none}

/* Responsive */
@media (max-width: 960px){
  .site-header{padding:14px 22px;flex-wrap:wrap;gap:14px}
  .main-nav{display:none}
  .hero{grid-template-columns:1fr;padding:56px 22px 48px;gap:36px;background-size:32px 32px}
  .hero h1{font-size:44px}
  .hero p.lead{font-size:17px}
  .hero-photo{width:100%;max-width:340px;margin:0 auto}
  .stats{grid-template-columns:1fr 1fr}
  .stats .cell{border-right:none;border-bottom:1px solid var(--line)}
  .stats .cell:nth-child(odd){border-right:1px solid var(--line)}
  .section{padding:52px 22px;gap:22px}
  .section-tight{padding:0 22px 52px}
  .section h2{font-size:32px}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .tl-row{grid-template-columns:1fr;gap:8px}
  .about{grid-template-columns:1fr;padding:0 22px 52px;gap:26px}
  .footer-inner{padding:36px 22px;flex-direction:column;align-items:flex-start;gap:22px}
  .footer-meta{padding:0 22px 22px}
}
@media (max-width: 480px){
  .hero h1{font-size:36px}
  .section h2{font-size:26px}
  .stats .num{font-size:38px}
}

/* Print */
@media print{
  .site-header,.marquee,.brands-marquee,.hero-photo,.site-footer,.lang-switch{display:none}
  body{background:#fff}
  a{color:var(--ink)}
  .section,.about,.hero{padding:14px 0;max-width:none}
}