/* ============================================================
   Ozon Data Services — dark-tech design system
   Graphite base + electric signal accent
   ============================================================ */
:root{
  --bg:#0A0E15;            /* near-black graphite */
  --bg-2:#0C111A;
  --panel:#111826;        /* card surface */
  --panel-2:#0F1522;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.06);
  --text:#EAF0F8;
  --muted:#93A2B8;
  --muted-2:#63728A;
  --signal:#C6F84E;       /* electric lime — CTAs, highlights */
  --signal-ink:#0A0E15;   /* text on signal */
  --cyan:#3DE1D0;         /* secondary — data viz */
  --violet:#8B7CFF;       /* tertiary — data viz */
  --radius:16px;
  --radius-sm:11px;
  --maxw:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow:0 24px 60px -24px rgba(0,0,0,.7);
  --glow:0 0 0 1px rgba(198,248,78,.35), 0 12px 40px -12px rgba(198,248,78,.28);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  font-size:16.5px;line-height:1.6;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:"Space Grotesk","Inter",sans-serif;font-weight:600;line-height:1.08;letter-spacing:-.02em;margin:0;overflow-wrap:break-word}
p{margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.mono{font-family:"JetBrains Mono","SF Mono",ui-monospace,monospace}
.eyebrow{font-family:"JetBrains Mono",monospace;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--signal);display:inline-flex;align-items:center;gap:8px}
.eyebrow::before{content:"";width:16px;height:1px;background:var(--signal);display:inline-block}
.section{padding:104px 0;position:relative}
.section-tight{padding:72px 0}
.lead{color:var(--muted);font-size:18px;max-width:56ch}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}

/* grain / glow backdrop */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(700px 380px at 82% -6%, rgba(61,225,208,.10), transparent 60%),
    radial-gradient(680px 420px at 8% 4%, rgba(198,248,78,.08), transparent 60%);
}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:15px;
  padding:13px 22px;border-radius:999px;border:1px solid transparent;cursor:pointer;
  transition:transform .18s var(--ease),background .18s,box-shadow .18s,border-color .18s;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn-signal{background:var(--signal);color:var(--signal-ink);box-shadow:var(--glow)}
.btn-signal:hover{box-shadow:0 0 0 1px rgba(198,248,78,.5),0 18px 46px -12px rgba(198,248,78,.45)}
.btn-ghost{background:rgba(255,255,255,.02);color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:rgba(198,248,78,.5);background:rgba(198,248,78,.06)}
.btn-arrow svg{width:16px;height:16px;transition:transform .2s var(--ease)}
.btn:hover .btn-arrow svg{transform:translateX(3px)}
.link-arrow{display:inline-flex;align-items:center;gap:7px;color:var(--signal);font-weight:600;font-size:15px}
.link-arrow svg{width:15px;height:15px;transition:transform .2s var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(10,14,21,.72);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line-2)}
.nav{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:11px;font-family:"Space Grotesk",sans-serif;font-weight:600;font-size:20px;letter-spacing:-.02em}
.brand .mark{width:30px;height:30px;flex:0 0 auto}
.brand b{color:var(--signal);font-weight:600}
.nav-links{display:flex;gap:6px;list-style:none;margin:0;padding:0;margin-left:14px}
.nav-links a{padding:9px 13px;border-radius:9px;color:var(--muted);font-size:15px;font-weight:500;transition:color .15s,background .15s}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-toggle{display:none;background:none;border:0;color:var(--text);font-size:22px;cursor:pointer;padding:6px}

/* language switch */
.lang-switch{position:relative}
.lang-btn{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.03);border:1px solid var(--line);
  color:var(--text);padding:8px 11px;border-radius:9px;cursor:pointer;font-size:14px;font-weight:500;transition:border-color .15s,background .15s}
.lang-btn:hover{border-color:rgba(198,248,78,.4)}
.lang-btn .flag{width:20px;height:14px;border-radius:2px;flex:0 0 auto;overflow:hidden}
.lang-btn .chev{width:14px;height:14px;stroke:var(--muted);transition:transform .2s}
.lang-switch.open .chev{transform:rotate(180deg)}
.lang-menu{position:absolute;top:calc(100% + 8px);right:0;min-width:172px;background:var(--panel);
  border:1px solid var(--line);border-radius:12px;padding:6px;list-style:none;margin:0;
  box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(-6px);transition:.18s var(--ease);z-index:70}
.lang-switch.open .lang-menu{opacity:1;visibility:visible;transform:none}
.lang-menu a{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:8px;font-size:14px;color:var(--muted)}
.lang-menu a:hover{background:rgba(255,255,255,.05);color:var(--text)}
.lang-menu a.active{color:var(--text)}
.lang-menu .flag{width:20px;height:14px;border-radius:2px;overflow:hidden;flex:0 0 auto}

/* ---------- hero ---------- */
.hero{padding:72px 0 40px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.02fr 1fr;gap:56px;align-items:center}
.hero-grid>*{min-width:0}
.hero h1{font-size:clamp(38px,5.4vw,62px)}
.hero h1 .grad{background:linear-gradient(100deg,var(--signal),var(--cyan));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero .lead{margin-top:22px;font-size:19px}
.hero-cta{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
.hero-meta{display:flex;gap:26px;margin-top:34px;flex-wrap:wrap}
.hero-meta .m{display:flex;flex-direction:column;gap:2px}
.hero-meta .m b{font-family:"Space Grotesk";font-size:24px;color:var(--text)}
.hero-meta .m span{font-size:13px;color:var(--muted-2)}

/* ---------- console mockup ---------- */
.console{background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;position:relative}
.console::after{content:"";position:absolute;inset:0;border-radius:var(--radius);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);pointer-events:none}
.console-bar{display:flex;align-items:center;gap:8px;padding:12px 15px;border-bottom:1px solid var(--line-2);background:rgba(255,255,255,.015)}
.console-bar .dot{width:11px;height:11px;border-radius:50%}
.dot.r{background:#ff5f57}.dot.y{background:#febc2e}.dot.g{background:#28c840}
.console-bar .title{margin-left:8px;font-family:"JetBrains Mono";font-size:12px;color:var(--muted-2)}
.console-bar .live{margin-left:auto;display:flex;align-items:center;gap:6px;font-family:"JetBrains Mono";font-size:11px;color:var(--cyan)}
.console-bar .live i{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.console-body{padding:18px}
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:14px}
.tile{background:var(--panel-2);border:1px solid var(--line-2);border-radius:var(--radius-sm);padding:13px}
.tile .k{font-family:"JetBrains Mono";font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted-2)}
.tile .v{font-family:"Space Grotesk";font-size:22px;margin-top:4px}
.tile .v small{font-size:12px;color:var(--muted);font-family:"Inter"}
.tile .up{color:var(--signal);font-size:11.5px;font-family:"JetBrains Mono";margin-top:3px}
.tile .down{color:var(--cyan)}
.chart-card{background:var(--panel-2);border:1px solid var(--line-2);border-radius:var(--radius-sm);padding:14px 14px 8px}
.chart-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.chart-head .t{font-size:13px;color:var(--muted)}
.chart-head .legend{display:flex;gap:12px;font-family:"JetBrains Mono";font-size:10.5px;color:var(--muted-2)}
.chart-head .legend i{display:inline-block;width:8px;height:8px;border-radius:2px;margin-right:5px;vertical-align:middle}
.runs{margin-top:12px;display:flex;flex-direction:column;gap:7px}
.run{display:flex;align-items:center;gap:10px;font-family:"JetBrains Mono";font-size:11.5px;color:var(--muted)}
.run .badge{font-size:10px;padding:2px 7px;border-radius:5px;border:1px solid var(--line)}
.run .ok{color:var(--signal);border-color:rgba(198,248,78,.3);background:rgba(198,248,78,.08)}
.run .name{color:var(--text)}
.run .bar{flex:1;height:5px;border-radius:3px;background:rgba(255,255,255,.06);overflow:hidden}
.run .bar i{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,var(--cyan),var(--signal))}
.run .ms{color:var(--muted-2)}
.float-badge{position:absolute;background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:11px 14px;box-shadow:var(--shadow);display:flex;align-items:center;gap:10px;font-size:13px}
.float-badge .ic{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;background:rgba(198,248,78,.12);color:var(--signal)}
.float-badge b{font-family:"Space Grotesk"}
.fb-1{right:-14px;top:22%}
.fb-2{left:-18px;bottom:8%}

/* ---------- logos / trust strip ---------- */
.trust{border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2);padding:26px 0;background:rgba(255,255,255,.012)}
.trust .row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:center}
.trust .lbl{font-family:"JetBrains Mono";font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted-2);margin-right:8px}
.chip{font-family:"JetBrains Mono";font-size:13px;color:var(--muted);padding:7px 14px;border:1px solid var(--line);border-radius:999px}

/* ---------- section heading ---------- */
.sec-head{max-width:640px;margin-bottom:48px}
.sec-head.center{margin-left:auto;margin-right:auto}
.sec-head h2{font-size:clamp(28px,3.6vw,42px);margin-top:14px}
.sec-head p{margin-top:16px;color:var(--muted);font-size:17px}

/* ---------- services grid ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.svc{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px;position:relative;overflow:hidden;transition:transform .22s var(--ease),border-color .22s}
.svc:hover{transform:translateY(-4px);border-color:rgba(198,248,78,.35)}
.svc .ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:rgba(198,248,78,.10);color:var(--signal);margin-bottom:16px}
.svc .ic svg{width:24px;height:24px}
.svc h3{font-size:19px}
.svc p{margin-top:9px;color:var(--muted);font-size:14.5px}
.svc ul{margin:14px 0 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:7px}
.svc li{font-size:13.5px;color:var(--muted);font-family:"JetBrains Mono";display:flex;gap:9px;align-items:flex-start}
.svc li::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--signal);margin-top:7px;flex:0 0 auto}

/* ---------- split feature ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split>*{min-width:0}
.split.rev .media{order:2}
.media{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.media img{width:100%;height:100%;object-fit:cover;filter:saturate(.92) contrast(1.02)}
.media .tint{position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(10,14,21,.55))}
.feature-list{margin:22px 0 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:16px}
.feature-list li{display:flex;gap:14px}
.feature-list .fi{width:38px;height:38px;border-radius:10px;flex:0 0 auto;display:grid;place-items:center;background:rgba(61,225,208,.10);color:var(--cyan)}
.feature-list h4{font-size:16px}
.feature-list p{color:var(--muted);font-size:14.5px;margin-top:3px}

/* ---------- stats band ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px;text-align:center}
.stat b{display:block;font-family:"Space Grotesk";font-size:40px;background:linear-gradient(120deg,var(--signal),var(--cyan));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat span{color:var(--muted);font-size:14px}

/* ---------- case study / testimonial ---------- */
.cases{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.case{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px;position:relative}
.case .metric{display:inline-flex;align-items:baseline;gap:8px;margin-bottom:14px}
.case .metric b{font-family:"Space Grotesk";font-size:34px;color:var(--signal)}
.case .metric span{color:var(--muted);font-size:14px}
.case q,.case blockquote{display:block;font-size:15.5px;color:var(--text);line-height:1.65;margin:0}
.case .who{display:flex;align-items:center;gap:13px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line-2)}
.case .who img{width:46px;height:46px;border-radius:50%;object-fit:cover;border:2px solid rgba(198,248,78,.4)}
.case .who .n{font-weight:600;font-size:14.5px}
.case .who .r{color:var(--muted-2);font-size:13px;font-family:"JetBrains Mono"}

/* ---------- developer / MCP band ---------- */
.dev{background:linear-gradient(180deg,var(--panel-2),var(--bg));border:1px solid var(--line);border-radius:22px;padding:44px;display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.dev>*{min-width:0}
.code-card{background:#070A10;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}
.code-card .cc-bar{display:flex;gap:7px;padding:11px 14px;border-bottom:1px solid var(--line-2)}
.code-card .cc-bar .title{margin-left:6px;font-family:"JetBrains Mono";font-size:11.5px;color:var(--muted-2)}
.code-card pre{margin:0;padding:16px 18px;overflow-x:auto;font-family:"JetBrains Mono";font-size:12.5px;line-height:1.75;color:#c6d2e2}
.code-card .cm{color:var(--muted-2)}
.code-card .kw{color:var(--violet)}
.code-card .st{color:var(--signal)}
.code-card .fn{color:var(--cyan)}

/* ---------- CTA band ---------- */
.cta-band{background:radial-gradient(120% 160% at 50% 0%,rgba(198,248,78,.12),transparent 55%),var(--panel);
  border:1px solid var(--line);border-radius:24px;padding:60px;text-align:center;position:relative;overflow:hidden}
.cta-band h2{font-size:clamp(28px,4vw,44px)}
.cta-band p{color:var(--muted);margin:16px auto 0;max-width:52ch;font-size:17px}
.cta-band .hero-cta{justify-content:center;margin-top:30px}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line-2);padding:64px 0 34px;margin-top:20px;background:var(--bg-2)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.foot-about .brand{margin-bottom:16px}
.foot-about p{color:var(--muted);font-size:14px;max-width:40ch}
.foot col,.foot-col h4{font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted-2);margin:0 0 14px;font-family:"JetBrains Mono";font-weight:500}
.foot-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.foot-col a{color:var(--muted);font-size:14.5px}
.foot-col a:hover{color:var(--signal)}
.foot-legal{font-size:13px;color:var(--muted-2);line-height:1.7}
.foot-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:44px;padding-top:22px;border-top:1px solid var(--line-2);color:var(--muted-2);font-size:13px}

/* ---------- avatars (no stock photos) ---------- */
.avatar{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;font-family:"Space Grotesk",sans-serif;font-weight:600;font-size:15px;color:var(--signal-ink);background:linear-gradient(135deg,var(--signal),var(--cyan));flex:0 0 auto}
.avatar-lg{width:84px;height:84px;font-size:26px;margin:0 auto 14px}
.media-graphic{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:linear-gradient(160deg,var(--panel),var(--bg));min-height:340px;box-shadow:var(--shadow);min-width:0;max-width:100%}
.media-graphic svg{display:block;width:100%;height:100%;min-height:340px}

/* ---------- contact form ---------- */
.fld{display:block}
.fld>span{display:block;font-size:13px;color:var(--muted);margin-bottom:7px}
.fld input,.fld select,.fld textarea{width:100%;background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:12px 14px;color:var(--text);font-family:inherit;font-size:15px;transition:border-color .15s}
.fld input:focus,.fld select:focus,.fld textarea:focus{outline:none;border-color:rgba(198,248,78,.55)}
.fld textarea{resize:vertical;min-height:120px}
.fld select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%2393A2B8' stroke-width='2' viewBox='0 0 24 24'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
.form-status.ok{color:var(--signal)}
.form-status.err{color:#ff8f8f}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}

/* ---------- cookie manager ---------- */
.cookie-banner{position:fixed;left:20px;right:20px;bottom:20px;z-index:90;max-width:560px;margin:0 auto;
  background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:20px 22px;box-shadow:var(--shadow);
  transform:translateY(140%);transition:transform .5s var(--ease)}
.cookie-banner.show{transform:none}
.cookie-banner h4{font-size:16px;margin-bottom:7px}
.cookie-banner p{font-size:13.5px;color:var(--muted);line-height:1.55}
.cookie-banner a{color:var(--signal)}
.cookie-actions{display:flex;gap:10px;margin-top:15px;flex-wrap:wrap}
.cookie-actions .btn{padding:10px 16px;font-size:14px}
.cookie-actions .txt{background:none;border:0;color:var(--muted);font-size:13.5px;cursor:pointer;text-decoration:underline;padding:10px 4px}
.cookie-modal{position:fixed;inset:0;z-index:95;display:none;align-items:center;justify-content:center;padding:20px;background:rgba(4,6,10,.66);backdrop-filter:blur(4px)}
.cookie-modal.show{display:flex}
.cm-box{background:var(--panel);border:1px solid var(--line);border-radius:18px;max-width:520px;width:100%;padding:28px;max-height:86vh;overflow:auto;box-shadow:var(--shadow)}
.cm-box h3{font-size:20px}
.cm-row{display:flex;justify-content:space-between;gap:16px;padding:16px 0;border-bottom:1px solid var(--line-2)}
.cm-row h5{font-size:14.5px;margin:0 0 4px}
.cm-row p{font-size:13px;color:var(--muted);margin:0}
.toggle{position:relative;width:42px;height:24px;flex:0 0 auto}
.toggle input{opacity:0;width:0;height:0}
.toggle .tr{position:absolute;inset:0;background:rgba(255,255,255,.12);border-radius:999px;transition:.2s;cursor:pointer}
.toggle .tr::before{content:"";position:absolute;width:18px;height:18px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.2s}
.toggle input:checked+.tr{background:var(--signal)}
.toggle input:checked+.tr::before{transform:translateX(18px);background:var(--signal-ink)}
.toggle input:disabled+.tr{opacity:.5;cursor:not-allowed}

/* ---------- responsive ---------- */
@media(max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .split,.dev{grid-template-columns:1fr;gap:34px}
  .split.rev .media{order:0}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .cases{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .nav-links{display:none}
}
@media(max-width:640px){
  .section{padding:72px 0}
  .svc-grid{grid-template-columns:1fr}
  .hero-cta .btn{flex:1;justify-content:center}
  .nav-cta .btn-ghost{display:none}
  .cta-band{padding:40px 24px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .float-badge{display:none}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}