:root {
  --bg: #F7F8FA;
  --surface: #FFFFFF;
  --text: #111827;
  --muted: #6B7280;
  --line: #E5E7EB;
  --accent: #0EA5A5;
  --accent-dark: #0B8F8F;
  --accent-2: #2563EB;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(17,24,39,.08);
  --container: 1200px;
}
*,*::before,*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  font-size: 17px; line-height: 1.6;
  color: var(--text); background: var(--bg);
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
a.link { color: var(--accent-2); text-decoration: underline; text-underline-offset: 3px; }
h1,h2,h3 { line-height: 1.15; }

/* Прогресс-бар */
.scroll-progress {
  position: fixed; top: 0; left: 0;
  height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  z-index: 100; transition: width .1s linear;
}

/* Skip link */
.skip-link { position: absolute; left: -9999px; top: auto; }
.skip-link:focus { left:12px; top:12px; background:var(--surface); padding:10px 12px; border:1px solid var(--line); border-radius:10px; z-index:9999; }

/* Container */
.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }

/* Sections */
.section { padding: 88px 0; }
.section--tight { padding: 40px 0; }
.section--alt { background: #F2F5F7; }
.section--hero { padding: 0; position: relative; min-height: 580px; display: flex; align-items: center; overflow: hidden; }

/* Видео-фон */
.hero-video-wrap {
  position: absolute; inset: 0; z-index: 0;
  pointer-events: none;
}
.hero-video {
  width: 100%; height: 100%;
  object-fit: cover;
}
.hero-video__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(17,24,39,.82) 0%, rgba(17,24,39,.55) 100%);
}
.section--hero .container { position: relative; z-index: 1; padding-top: 72px; padding-bottom: 64px; }
.section--hero .hero { display: grid; grid-template-columns: 1.3fr .7fr; gap: 40px; align-items: center; }
.section--hero h1 { color: #fff; margin: 0 0 14px; font-size: 46px; letter-spacing: -.8px; }
.section--hero .lead { color: rgba(255,255,255,.8); margin: 0 0 20px; font-size: 18px; }
.section--hero .microtrust { color: rgba(255,255,255,.5); font-size: 13px; margin-top: 12px; }
.section--hero .badge { background: rgba(14,165,165,.2); color: #5EEAD4; border-color: rgba(14,165,165,.3); }
.section--hero .checks li { color: rgba(255,255,255,.85); }
.section--hero .checks li::before { color: var(--accent); }

/* Счётчики */
.hero__counters {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
  align-self: start;
}
.counter {
  text-align: center; padding: 20px 14px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.counter__value {
  font-size: 30px; font-weight: 800;
  color: #5EEAD4; line-height: 1;
  margin-bottom: 6px;
}
.counter__label { font-size: 13px; color: var(--accent-dark); line-height: 1.3; }

/* Hero CTA */
.hero__cta { display: flex; gap: 12px; flex-wrap: wrap; margin: 20px 0 12px; }
.btn--light {
  background: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.25);
  color: #fff;
}
.btn--light:hover { background: rgba(255,255,255,.2); }

/* Header */
.header {
  position: sticky; top: 0;
  background: rgba(247,248,250,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  z-index: 50;
}
.header__inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand__mark { width: 10px; height: 10px; border-radius: 999px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); box-shadow: 0 0 0 6px rgba(14,165,165,.12); }
.brand__text { font-weight: 700; font-size: 18px; }
.nav { display: flex; gap: 4px; }
.nav__link { font-size: 14px; color: var(--muted); padding: 8px 10px; border-radius: 10px; transition: background .12s, color .12s; }
.nav__link:hover { background: rgba(17,24,39,.05); color: var(--text); }
.header__actions { display: flex; align-items: center; gap: 12px; }
.header__phone { font-size: 14px; color: var(--muted); }
.burger { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); cursor: pointer; flex-direction: column; align-items: center; justify-content: center; gap: 0; }
.burger span { display: block; width: 18px; height: 2px; background: var(--text); margin: 3px 0; border-radius: 2px; }
.mobile-nav { border-bottom: 1px solid var(--line); background: var(--surface); }
.mobile-nav__link { display: block; padding: 14px 20px; border-top: 1px solid var(--line); color: var(--text); font-size: 16px; }
.mobile-nav__cta { padding: 16px 20px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 20px; border-radius: 12px; border: 1.5px solid transparent;
  font-weight: 600; font-size: 15px; font-family: inherit;
  cursor: pointer; transition: transform .08s ease, background .15s ease, box-shadow .15s ease;
  text-decoration: none;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--accent); color: #fff; box-shadow: 0 8px 20px rgba(14,165,165,.22); }
.btn--primary:hover { background: var(--accent-dark); box-shadow: 0 10px 24px rgba(14,165,165,.3); }
.btn--secondary { background: transparent; border-color: rgb(255, 255, 255); color: var(--accent); }
.btn--secondary:hover { background: rgba(37,99,235,.06); }
.btn--sm { padding: 10px 14px; font-size: 14px; }
.btn--block { width: 100%; }

/* Card */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; }

/* Section head */
.section-head { max-width: 760px; margin-bottom: 32px; }
.section-head--left { margin-bottom: 18px; }
.section-head h2 { margin: 0 0 10px; font-size: 34px; letter-spacing: -.4px; }
.section-head p { margin: 0; color: var(--muted); }

/* Badge */
.badge { display: inline-flex; padding: 7px 14px; border-radius: 999px; background: rgba(14,165,165,.1); color: #0B5E5E; border: 1px solid rgba(14,165,165,.2); font-size: 13px; font-weight: 500; margin: 0 0 16px; }

/* Trust strip */
.trust { display: grid; grid-template-columns: repeat(4,1fr); gap: 12px; }
.trust__item { display: flex; align-items: center; gap: 8px; padding: 14px 16px; background: rgba(255,255,255,.8); border: 1px solid var(--line); border-radius: 14px; color: var(--muted); font-size: 14px; font-weight: 500; }
.trust__item svg { color: var(--accent); flex-shrink: 0; }

/* Split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.split h2 { margin: 0 0 16px; font-size: 34px; letter-spacing: -.4px; }
.split h3 { margin: 0 0 12px; font-size: 20px; }
.bullets,.checks { margin: 0; padding-left: 20px; line-height: 1.9; }
.bullets { color: var(--muted); }
.checks { list-style: none; padding-left: 0; }
.checks li { padding-left: 26px; position: relative; margin: 8px 0; }
.checks li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

/* Grid */
.grid { display: grid; gap: 16px; }
.grid--3 { grid-template-columns: repeat(3,1fr); }

/* Feature */
.icon-wrap { width: 52px; height: 52px; border-radius: 14px; background: rgba(14,165,165,.08); border: 1px solid rgba(14,165,165,.15); display: flex; align-items: center; justify-content: center; margin-bottom: 14px; color: var(--accent); }
.feature h3 { margin: 0 0 8px; font-size: 17px; }
.feature p { margin: 0 0 12px; color: var(--muted); font-size: 15px; }

/* Section CTA */
.section-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }

/* Thumb */
.thumb { border-radius: 12px; border: 1px solid rgba(229,231,235,.8); background: #F3F4F6; width: 100%; }
.industry h3,.case h3 { margin: 14px 0 8px; font-size: 17px; }
.industry p,.case p { margin: 0 0 8px; color: var(--muted); font-size: 15px; }
.case p b { color: var(--text); }
.result-badge { display: inline-flex; padding: 5px 12px; border-radius: 999px; background: rgba(14,165,165,.1); color: #0B5E5E; font-size: 13px; font-weight: 500; border: 1px solid rgba(14,165,165,.18); margin-top: 4px; }

/* Process */
.process { display: grid; grid-template-columns: 1.2fr .8fr; gap: 20px; align-items: start; }
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.step { display: flex; gap: 14px; align-items: flex-start; }
.step__num { width: 40px; height: 40px; border-radius: 12px; display: flex; align-items: center; justify-content: center; background: rgba(37,99,235,.08); color: var(--accent-2); font-weight: 700; font-size: 16px; border: 1px solid rgba(37,99,235,.15); flex-shrink: 0; }
.step h3 { margin: 4px 0 6px; font-size: 16px; }
.step p { margin: 0; color: var(--muted); font-size: 15px; }

/* FAQ */
.faq { display: grid; gap: 10px; }
.faq__item summary { cursor: pointer; font-weight: 600; list-style: none; padding-right: 20px; position: relative; }
.faq__item summary::after { content: "+"; position: absolute; right: 0; top: 0; color: var(--accent); font-size: 20px; font-weight: 400; }
.faq__item[open] summary::after { content: "−"; }
.faq__content { color: var(--muted); line-height: 1.7; margin-top: 10px; }

/* Contact */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.contact-note { margin-top: 24px; padding-top: 22px; border-top: 1px solid var(--line); }
.contact-note h3 { margin: 0 0 12px; font-size: 17px; }
.contact-checklist { display: grid; gap: 9px; margin: 0 0 14px; padding: 0; list-style: none; color: var(--muted); }
.contact-checklist li { position: relative; padding-left: 24px; line-height: 1.55; }
.contact-checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.contact-panel { padding: 32px; background: linear-gradient(145deg, #fff, #f5fbfb); border-color: rgba(14,165,165,.24); }
.contact-panel__eyebrow { margin: 0 0 8px; color: var(--accent-dark); font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.contact-panel h3 { margin: 0 0 22px; font-size: 24px; }
.contact-method { display: block; padding: 18px 0; border-top: 1px solid var(--line); }
.contact-method:last-of-type { border-bottom: 1px solid var(--line); }
.contact-method__label { display: block; margin-bottom: 5px; color: var(--muted); font-size: 13px; font-weight: 600; }
.contact-method__value { color: var(--text); font-size: clamp(20px, 2.3vw, 28px); font-weight: 700; letter-spacing: -.02em; overflow-wrap: anywhere; }
.contact-method:hover .contact-method__value { color: var(--accent-dark); }
.contact-method:focus-visible { outline: 3px solid rgba(14,165,165,.25); outline-offset: 6px; border-radius: 8px; }
.contact-panel__meta { margin: 20px 0 0; color: var(--muted); font-size: 14px; line-height: 1.65; }
.muted { color: var(--muted); }
.small { font-size: 13px; }

/* Footer */
.footer { padding: 28px 0; border-top: 1px solid var(--line); background: rgba(247,248,250,.9); }
.footer__inner { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; flex-wrap: wrap; }
.footer__brand { font-weight: 700; margin-bottom: 6px; font-size: 16px; }
.footer__right { display: flex; flex-direction: column; gap: 6px; align-items: flex-end; }

/* FAB */
.fab { position: fixed; bottom: 28px; right: 28px; display: flex; align-items: center; gap: 10px; padding: 14px 20px; background: var(--accent); color: #fff; border-radius: 999px; box-shadow: 0 8px 28px rgba(14,165,165,.35); font-weight: 600; font-size: 15px; z-index: 40; transition: opacity .25s, transform .25s, background .15s, box-shadow .15s; }
.fab:hover { background: var(--accent-dark); box-shadow: 0 10px 32px rgba(14,165,165,.45); }
.fab.fab--hidden { opacity: 0; transform: translateY(20px); pointer-events: none; }

/* Responsive */
@media (max-width: 960px) {
  .nav { display: none; }
  .burger { display: flex; }
  .section--hero .hero { grid-template-columns: 1fr; }
  .hero__counters { grid-template-columns: repeat(4,1fr); }
  .section--hero h1 { font-size: 34px; }
  .split { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .contact { grid-template-columns: 1fr; }
  .trust { grid-template-columns: 1fr 1fr; }
  .grid--3 { grid-template-columns: 1fr 1fr; }
  .fab span { display: none; }
  .fab { padding: 16px; }
}
@media (max-width: 600px) {
  .section { padding: 56px 0; }
  .section--hero h1 { font-size: 28px; }
  .section-head h2 { font-size: 26px; }
  .trust { grid-template-columns: 1fr; }
  .grid--3 { grid-template-columns: 1fr; }
  .hero__counters { grid-template-columns: 1fr 1fr; }
  .contact-panel { padding: 24px 20px; }
  .contact-method__value { font-size: 21px; }
  .fab { bottom: 16px; right: 16px; }
}