/* ============ Skvortsov ADV — styles v2 ============ */
:root{
  --bg:#0A0D13; --bg-alt:#0E121C; --surface:#141A28; --surface-2:#1A2233; --border:#222C40;
  --text:#E8ECF4; --muted:#98A4BA; --accent:#34D399; --accent-2:#10B981; --accent-3:#6EE7F0;
  --accent-soft:rgba(52,211,153,.12); --radius:18px; --radius-sm:12px; --maxw:1160px;
  --shadow:0 24px 60px -24px rgba(0,0,0,.65);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","PT Sans",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden;position:relative}
a{color:inherit;text-decoration:none}
svg{display:block}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px;position:relative;z-index:1}
.skip-link{position:absolute;left:-999px;top:0;z-index:1000;background:var(--accent);color:#04130C;padding:10px 16px;border-radius:0 0 8px 0}
.skip-link:focus{left:0}

/* ---------- Decorative background ---------- */
.bg-decor{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.blob{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5}
.blob-1{width:520px;height:520px;top:-160px;right:-120px;background:radial-gradient(circle,rgba(52,211,153,.30),transparent 70%)}
.blob-2{width:480px;height:480px;top:680px;left:-180px;background:radial-gradient(circle,rgba(16,185,129,.18),transparent 70%)}
.grid-overlay{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:46px 46px;mask-image:radial-gradient(circle at 50% 0,#000,transparent 75%)}

/* ---------- Bits ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.07em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.accent{color:var(--accent)}
.ico{flex-shrink:0}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:15px;line-height:1;cursor:pointer;padding:14px 22px;border-radius:999px;border:1px solid transparent;transition:transform .15s ease,background .2s,border-color .2s,box-shadow .2s;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#04130C;box-shadow:0 10px 30px -10px rgba(52,211,153,.5)}
.btn-primary:hover{box-shadow:0 16px 40px -10px rgba(52,211,153,.7);transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.02);border-color:var(--border);color:var(--text)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-lg{padding:16px 28px;font-size:16px}
.btn-block{width:100%}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(10,13,19,.78);backdrop-filter:saturate(140%) blur(14px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;gap:24px;height:70px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700}
.brand-mark{width:32px;height:32px;display:block}
.brand-text{font-size:18px;letter-spacing:-.01em}
.brand-text strong{color:var(--accent);font-weight:800}
.nav{display:flex;gap:26px;margin-left:auto}
.nav a{color:var(--muted);font-size:15px;font-weight:500;transition:color .15s}
.nav a:hover{color:var(--text)}
.header-inner>.btn{flex-shrink:0}
.nav-toggle{display:none}
.mobile-nav{display:none}

/* ---------- Hero ---------- */
.hero{padding:80px 0 64px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(34px,5.4vw,58px);line-height:1.04;letter-spacing:-.02em;font-weight:800;margin-bottom:20px}
.lead{font-size:clamp(17px,2.1vw,21px);color:var(--muted);max-width:620px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 8px}
.hero-stats{list-style:none;display:flex;gap:38px;margin-top:38px;flex-wrap:wrap}
.hero-stats li{display:flex;flex-direction:column}
.hero-stats strong{font-size:clamp(26px,4vw,34px);font-weight:800;background:linear-gradient(135deg,#fff,#9fe9cf);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-stats span{font-size:14px;color:var(--muted)}
.hero-visual{position:relative}
.dash{width:100%;height:auto;filter:drop-shadow(0 30px 60px rgba(0,0,0,.5));animation:floaty 6s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@media (prefers-reduced-motion:reduce){.dash{animation:none}}

/* ---------- Clients ---------- */
.clients{padding:28px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:rgba(255,255,255,.012)}
.clients-label{text-align:center;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:16px}
.clients-list{list-style:none;display:flex;flex-wrap:wrap;justify-content:center;gap:12px 34px}
.clients-list li{font-weight:700;font-size:16px;color:#69748c;transition:color .2s}
.clients-list li:hover{color:var(--text)}

/* ---------- Sections ---------- */
.section{padding:92px 0}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:730px;margin:0 auto 52px;text-align:center}
.section-head .eyebrow{justify-content:center}
.section-head h2{font-size:clamp(28px,4.2vw,42px);line-height:1.1;letter-spacing:-.02em;font-weight:800}
.section-sub{margin-top:16px;color:var(--muted);font-size:17px}
.grid{display:grid;gap:20px}
.services-grid{grid-template-columns:repeat(3,1fr)}
.cases-grid{grid-template-columns:repeat(3,1fr)}

/* ---------- Cards ---------- */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;transition:transform .2s,border-color .2s,background .2s;position:relative}
.card:hover{transform:translateY(-4px);border-color:rgba(52,211,153,.4);background:var(--surface-2)}
.card h3{font-size:19px;margin-bottom:8px;letter-spacing:-.01em}
.card p{color:var(--muted);font-size:15px}
.card-accent{background:linear-gradient(160deg,rgba(52,211,153,.12),var(--surface));border-color:rgba(52,211,153,.35)}
.card-cta{display:flex;flex-direction:column;justify-content:center;background:linear-gradient(160deg,var(--surface-2),var(--surface));align-items:flex-start;gap:6px}
.card-cta .btn{margin-top:14px}
.card-ico{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:12px;background:var(--accent-soft);margin-bottom:16px}
.card-ico svg{width:24px;height:24px;fill:none;stroke:var(--accent);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.tags{list-style:none;display:flex;flex-wrap:wrap;gap:7px;margin-top:16px}
.tags li{font-size:12.5px;color:var(--muted);background:var(--surface-2);border:1px solid var(--border);padding:5px 10px;border-radius:999px}
.card-accent .tags li{background:rgba(0,0,0,.18)}
.tags-wrap li{background:var(--surface)}

/* ---------- Process ---------- */
.process{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.proc-line{position:absolute;top:54px;left:12%;right:12%;height:2px;background:linear-gradient(90deg,transparent,var(--border),var(--border),transparent);z-index:0}
.proc-step{position:relative;z-index:1;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px 22px;text-align:center}
.proc-step .card-ico{margin:0 auto 14px}
.proc-num{display:block;font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--accent);margin-bottom:10px}
.proc-step h3{font-size:18px;margin-bottom:6px}
.proc-step p{color:var(--muted);font-size:14.5px}

/* ---------- Cases ---------- */
.case-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px;transition:transform .2s,border-color .2s}
.case-card:hover{transform:translateY(-4px);border-color:rgba(52,211,153,.4)}
.case-top{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:16px}
.case-head h3{font-size:18px}
.case-period{display:inline-block;margin-top:6px;font-size:12px;color:var(--muted);background:var(--surface-2);border:1px solid var(--border);padding:3px 9px;border-radius:999px}
.case-spark{width:96px;height:34px;flex-shrink:0}
.case-metrics{list-style:none;display:flex;flex-wrap:wrap;gap:16px 20px;margin-bottom:14px}
.case-metrics li{display:flex;flex-direction:column}
.case-metrics strong{font-size:20px;font-weight:800;color:var(--accent)}
.case-metrics span{font-size:12.5px;color:var(--muted)}
.case-card>p{color:var(--muted);font-size:14.5px}
.case-band{display:flex;flex-direction:column;justify-content:center;background:linear-gradient(160deg,rgba(52,211,153,.12),var(--surface));border-color:rgba(52,211,153,.3)}
.case-band h3{font-size:21px;margin-bottom:10px;line-height:1.25}
.case-band .btn{margin-top:16px}

/* ---------- About ---------- */
.about-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:center}
.about-side{display:flex;flex-direction:column;gap:22px}
.avatar{position:relative;width:100%;max-width:280px;margin:0 auto}
.avatar svg{width:100%;height:auto;border-radius:28px}
.avatar-badge{position:absolute;right:6px;bottom:6px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#04130C;font-weight:800;font-size:13px;padding:8px 14px;border-radius:999px;box-shadow:var(--shadow)}
.about-quick{display:grid;gap:12px}
.about-quick>div{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px 16px}
.about-quick strong{display:block;font-size:15px}
.about-quick span{font-size:13px;color:var(--muted)}
.about-text h2{font-size:clamp(28px,4.2vw,42px);letter-spacing:-.02em}
.about-role{color:var(--accent);font-weight:600;margin:6px 0 18px}
.about-text p{color:var(--muted);margin-bottom:14px;font-size:16px}
.about-text h4{font-size:13px;text-transform:uppercase;letter-spacing:.06em;margin:22px 0 12px}

/* ---------- Bullets ---------- */
.bullet{list-style:none}
.bullet li{position:relative;padding-left:26px;margin-bottom:11px;color:var(--muted);font-size:15px}
.bullet-check li::before{content:"";position:absolute;left:0;top:3px;width:18px;height:18px;border-radius:50%;background:var(--accent-soft);}
.bullet-check li::after{content:"";position:absolute;left:6px;top:7px;width:5px;height:9px;border:2px solid var(--accent);border-top:0;border-left:0;transform:rotate(40deg)}

/* ---------- Audit / form ---------- */
.audit{position:relative}
.audit-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:start}
.audit-text h2{font-size:clamp(28px,4.4vw,44px);letter-spacing:-.02em;margin-bottom:14px}
.audit-text .lead{margin-bottom:24px}
.audit-text .bullet{margin-bottom:26px}
.audit-contacts{display:flex;flex-wrap:wrap;gap:12px}
.audit-form-wrap{position:sticky;top:92px}
.lead-form{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.lead-form h3{font-size:22px;margin-bottom:4px}
.form-note{color:var(--muted);font-size:14px;margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;margin-bottom:7px}
.req{color:var(--accent)}
.field input,.field textarea{width:100%;background:var(--bg);border:1px solid var(--border);color:var(--text);border-radius:var(--radius-sm);padding:13px 14px;font-size:15px;font-family:inherit;transition:border-color .15s,box-shadow .15s}
.field input::placeholder,.field textarea::placeholder{color:#566074}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.field textarea{resize:vertical;min-height:88px}
.form-status{font-size:14px;margin-top:14px;min-height:1px}
.form-status.ok{color:var(--accent)}
.form-status.err{color:#FF6B6B}
.form-privacy{font-size:12px;color:#69748c;margin-top:14px}

/* ---------- FAQ ---------- */
.faq-inner{max-width:820px;margin:0 auto}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}
.faq-item summary{cursor:pointer;list-style:none;padding:20px 22px;font-weight:600;font-size:17px;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--accent);font-size:24px;font-weight:400;transition:transform .2s;line-height:1}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 22px 20px;color:var(--muted);font-size:15.5px}

/* ---------- CTA band ---------- */
.cta-band{padding:30px 0}
.cta-inner{background:linear-gradient(135deg,rgba(52,211,153,.16),rgba(16,185,129,.06));border:1px solid rgba(52,211,153,.3);border-radius:24px;padding:40px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(24px,3.4vw,34px);letter-spacing:-.02em}
.cta-inner p{color:var(--muted);margin-top:6px}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--border);background:var(--bg-alt);padding-top:50px}
.footer-inner{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-bottom:36px}
.footer-brand{max-width:460px}
.footer-tagline{color:var(--muted);font-size:15px;margin-top:14px}
.footer-contacts{display:flex;flex-direction:column;gap:10px}
.footer-contacts a{color:var(--text);font-weight:500}
.footer-contacts a:hover{color:var(--accent)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:22px 20px;border-top:1px solid var(--border);color:var(--muted);font-size:14px}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- Entrance animation (safe) ---------- */
@keyframes pageIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
main>section{animation:pageIn .5s ease both}
@media (prefers-reduced-motion:reduce){main>section{animation:none}}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-visual{order:-1;max-width:520px}
  .services-grid,.cases-grid{grid-template-columns:repeat(2,1fr)}
  .process{grid-template-columns:repeat(2,1fr)}
  .proc-line{display:none}
  .about-grid{grid-template-columns:1fr;gap:34px}
  .about-side{max-width:420px;margin:0 auto}
  .audit-inner{grid-template-columns:1fr;gap:36px}
  .audit-form-wrap{position:static}
}
@media (max-width:760px){
  .nav,.header-inner>.btn.btn-sm{display:none}
  .nav-toggle{display:inline-flex;flex-direction:column;gap:5px;margin-left:auto;background:none;border:0;cursor:pointer;padding:8px}
  .nav-toggle span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s,opacity .2s}
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .mobile-nav:not([hidden]){display:flex;flex-direction:column;gap:4px;padding:14px 20px 20px;border-bottom:1px solid var(--border);background:var(--bg)}
  .mobile-nav a{padding:12px 6px;color:var(--text);font-size:16px}
  .mobile-nav .btn{margin-top:8px}
  .section{padding:64px 0}
  .hero{padding:48px 0 40px}
  .services-grid,.cases-grid,.process{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start;text-align:left}
}
@media (max-width:420px){.hero-cta .btn{width:100%}.cta-inner .btn{width:100%}}