:root {
  --ink: #101114;
  --ink-soft: #55585f;
  --dark: #141414;
  --dark-2: #1c1c1e;
  --dark-3: #232326;
  --light: #ffffff;
  --band: #f1f1f0;
  --line: #e2e2e0;
  --line-dark: #2e2e32;
  --accent: #1b46f5;
  --accent-dark: #1638cc;
  --on-dark: #f5f5f4;
  --on-dark-soft: #a4a5aa;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 18px;
  --shell: 1180px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--light);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: inherit; }

h1, h2, h3 { line-height: 1.15; margin: 0; letter-spacing: -0.02em; }

p { margin: 0; }

.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 20px;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  left: 16px; top: -60px;
  z-index: 100;
  background: var(--accent);
  color: #fff;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: transform 200ms var(--ease);
}
.skip-link:focus { top: 16px; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--dark);
  transition: box-shadow 250ms var(--ease), background-color 250ms var(--ease);
}
.site-header.is-stuck {
  background: rgba(14, 14, 16, 0.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}
.site-header__inner {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 62px;
}

.brand {
  font-weight: 700;
  font-style: italic;
  font-size: 19px;
  letter-spacing: -0.03em;
  color: var(--on-dark);
  text-decoration: none;
  white-space: nowrap;
}
.brand__tail { font-weight: 400; margin-left: 4px; opacity: 0.75; }
.brand--footer { font-size: 26px; display: inline-block; margin-bottom: 14px; }

.nav {
  display: none;
  gap: 26px;
  margin-inline: auto;
}
.nav a {
  color: var(--on-dark-soft);
  text-decoration: none;
  font-size: 13.5px;
  position: relative;
  padding: 4px 0;
  transition: color 200ms var(--ease);
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--on-dark);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 250ms var(--ease);
}
.nav a:hover { color: var(--on-dark); }
.nav a:hover::after { transform: scaleX(1); }

.site-header__actions {
  display: none;
  align-items: center;
  gap: 16px;
  margin-left: auto;
}
.header-phone {
  color: var(--on-dark-soft);
  text-decoration: none;
  font-size: 13.5px;
  transition: color 200ms var(--ease);
}
.header-phone:hover { color: var(--on-dark); }

.burger {
  margin-left: auto;
  width: 40px; height: 36px;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 0 8px;
}
.burger span {
  height: 2px;
  background: var(--on-dark);
  border-radius: 2px;
  transition: transform 250ms var(--ease), opacity 200ms var(--ease);
}
.burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 13px 22px;
  font-size: 14.5px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: transform 200ms var(--ease), background-color 220ms var(--ease), color 220ms var(--ease), box-shadow 220ms var(--ease);
}
.btn--sm { padding: 9px 16px; font-size: 13.5px; }
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 12px 24px rgba(27, 70, 245, 0.28); }
.btn--ghost { background: #fff; color: var(--ink); }
.btn--ghost:hover { transform: translateY(-2px); box-shadow: 0 12px 24px rgba(0, 0, 0, 0.25); }
.btn--outline { background: transparent; color: var(--on-dark); border-color: rgba(255, 255, 255, 0.35); }
.btn--outline:hover { background: rgba(255, 255, 255, 0.1); transform: translateY(-2px); }

.hero {
  position: relative;
  background: var(--dark);
  color: var(--on-dark);
  padding: 56px 0 0;
  overflow: hidden;
}
.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  pointer-events: none;
}
.hero__glow--a {
  width: 420px; height: 420px;
  background: rgba(27, 70, 245, 0.35);
  top: -120px; left: -80px;
  animation: float 18s ease-in-out infinite;
}
.hero__glow--b {
  width: 360px; height: 360px;
  background: rgba(120, 120, 160, 0.25);
  top: 60px; right: -100px;
  animation: float 22s ease-in-out infinite reverse;
}
@keyframes float {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(30px, 40px, 0); }
}

.hero__inner { position: relative; text-align: center; }
.hero__title {
  font-size: clamp(32px, 6vw, 54px);
  font-weight: 700;
  max-width: 800px;
  margin: 0 auto;
}
.hero__lead {
  margin: 18px auto 0;
  max-width: 660px;
  color: var(--on-dark-soft);
  font-size: 15.5px;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 26px;
}

.browser {
  margin: 48px auto -80px;
  max-width: 960px;
  border-radius: var(--radius) var(--radius) 0 0;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 -10px 60px rgba(0, 0, 0, 0.35);
}
.browser__bar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 14px;
  background: #ededec;
  border-bottom: 1px solid var(--line);
  font-size: 11.5px;
  color: var(--ink-soft);
}
.browser__dots { display: inline-flex; gap: 6px; }
.browser__dots i { width: 10px; height: 10px; border-radius: 50%; background: #d3d3d1; }
.browser__dots i:nth-child(1) { background: #f0645b; }
.browser__dots i:nth-child(2) { background: #f4bf4f; }
.browser__dots i:nth-child(3) { background: #61c454; }
.browser__tab {
  background: #fff;
  border-radius: 6px;
  padding: 4px 12px;
  white-space: nowrap;
}
.browser__url {
  flex: 1;
  background: #fff;
  border-radius: 6px;
  padding: 4px 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.browser__shot { width: 100%; height: auto; }

.strip {
  background: var(--band);
  padding: 110px 0 34px;
  overflow: hidden;
}
.strip__label {
  text-align: center;
  font-weight: 600;
  font-size: 14.5px;
  margin-bottom: 22px;
  padding: 0 20px;
}
.marquee {
  position: relative;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee__track {
  display: flex;
  gap: 48px;
  width: max-content;
  animation: marquee 38s linear infinite;
}
.marquee__track span {
  font-size: 19px;
  font-weight: 600;
  color: #3a3d44;
  white-space: nowrap;
  letter-spacing: -0.01em;
}
@keyframes marquee {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(-50%, 0, 0); }
}

.approach { padding: 72px 0 84px; }

.tabs {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 44px;
}
.tab {
  text-align: left;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  cursor: pointer;
  font-family: inherit;
  transition: transform 220ms var(--ease), background-color 220ms var(--ease), border-color 220ms var(--ease), box-shadow 220ms var(--ease);
}
.tab:hover { transform: translateY(-3px); box-shadow: 0 14px 28px rgba(16, 17, 20, 0.08); }
.tab.is-active {
  background: var(--dark);
  border-color: var(--dark);
  color: var(--on-dark);
}
.tab__title { display: block; font-size: 19px; font-weight: 700; letter-spacing: -0.02em; }
.tab__text { display: block; margin-top: 6px; font-size: 12.5px; color: var(--ink-soft); }
.tab.is-active .tab__text { color: var(--on-dark-soft); }

.panel-wrap {
  display: grid;
  gap: 28px;
  align-items: start;
}
.panel__media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--band);
}
.panel__media img {
  width: 100%;
  transition: transform 600ms var(--ease);
}
.panel__media:hover img { transform: scale(1.04); }

.panel { display: none; }
.panel.is-active { display: block; animation: panel-in 380ms var(--ease) both; }
@keyframes panel-in {
  from { opacity: 0; transform: translate3d(0, 12px, 0); }
  to { opacity: 1; transform: none; }
}
.panel h2 { font-size: clamp(24px, 3.4vw, 30px); font-weight: 700; }
.panel > p { margin-top: 12px; color: var(--ink-soft); font-size: 15px; }

.points { list-style: none; margin: 26px 0 0; padding: 0; display: grid; gap: 12px; }
.points li {
  position: relative;
  background: #fff;
  border-radius: var(--radius);
  padding: 16px 18px 16px 58px;
  border: 1px solid transparent;
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease), border-color 220ms var(--ease);
}
.points li:first-child {
  border-color: var(--line);
  box-shadow: 0 14px 30px rgba(16, 17, 20, 0.07);
}
.points li::before {
  content: "";
  position: absolute;
  left: 18px; top: 18px;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--accent) radial-gradient(circle at 50% 50%, #fff 0 3px, transparent 3px);
}
.points li:hover { transform: translateY(-3px); box-shadow: 0 16px 32px rgba(16, 17, 20, 0.1); }
.points h3 { font-size: 15px; font-weight: 600; }
.points p { margin-top: 4px; font-size: 13px; color: var(--ink-soft); }

.services { padding: 8px 0 84px; }

.section-head { max-width: 680px; margin-bottom: 36px; }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head__title { font-size: clamp(26px, 4vw, 38px); font-weight: 700; }
.section-head__lead { margin-top: 12px; color: var(--ink-soft); font-size: 15px; }

.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
.card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 14px 14px 18px;
  background: #fff;
  transition: transform 260ms var(--ease), box-shadow 260ms var(--ease), border-color 260ms var(--ease);
}
.card:hover {
  transform: translateY(-5px);
  border-color: #cfd0ce;
  box-shadow: 0 22px 44px rgba(16, 17, 20, 0.1);
}
.card__media {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--band);
  margin-bottom: 16px;
}
.card__media img { width: 100%; transition: transform 600ms var(--ease); }
.card:hover .card__media img { transform: scale(1.05); }
.card__title { font-size: 18px; font-weight: 600; padding: 0 4px; }
.card__text { margin-top: 8px; padding: 0 4px; font-size: 13.5px; color: var(--ink-soft); }
.card__price {
  margin: 16px 4px 0;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.card__cta {
  margin: 14px 4px 0;
  align-self: flex-start;
  border: 1px solid var(--ink);
  border-radius: var(--radius-sm);
  padding: 9px 18px;
  font-size: 13.5px;
  text-decoration: none;
  transition: background-color 220ms var(--ease), color 220ms var(--ease), transform 220ms var(--ease);
}
.card__cta:hover { background: var(--ink); color: #fff; transform: translateY(-2px); }

.start {
  background: var(--dark);
  color: var(--on-dark);
  padding: 72px 0 84px;
}
.start__title { font-size: clamp(26px, 4vw, 38px); font-weight: 700; margin-bottom: 34px; }
.start__grid { display: grid; gap: 22px; }
.start-card__media {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--dark-3);
  margin-bottom: 18px;
}
.start-card__media img { width: 100%; transition: transform 600ms var(--ease); }
.start-card:hover .start-card__media img { transform: scale(1.05); }
.start-card h3 { font-size: 19px; font-weight: 600; }
.start-card p { margin-top: 10px; font-size: 13.5px; color: var(--on-dark-soft); }
.start-card .btn { margin-top: 18px; }

.faq { padding: 78px 0 84px; }
.faq__search { position: relative; max-width: 1040px; margin: 0 auto 26px; }
.faq__search input {
  width: 100%;
  font: inherit;
  font-size: 14px;
  padding: 13px 44px 13px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2355585f' stroke-width='2'><circle cx='11' cy='11' r='7'/><path d='M20 20l-3.5-3.5'/></svg>") no-repeat right 14px center;
  background-size: 17px 17px;
  transition: border-color 220ms var(--ease), box-shadow 220ms var(--ease);
}
.faq__search input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(27, 70, 245, 0.12); outline: none; }

.faq__list { max-width: 1040px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item__q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: none;
  border: 0;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
  font-size: 15px;
  text-align: left;
  padding: 20px 4px;
  color: inherit;
}
.faq-item__icon {
  flex: none;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23101114' stroke-width='2'><path d='M4 12h15M13 6l6 6-6 6'/></svg>") no-repeat center;
  background-size: 18px 18px;
  transition: transform 300ms var(--ease);
}
.faq-item.is-open .faq-item__icon { transform: rotate(90deg); }
.faq-item__a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 320ms var(--ease);
}
.faq-item.is-open .faq-item__a { grid-template-rows: 1fr; }
.faq-item__a > p {
  overflow: hidden;
  font-size: 13.5px;
  color: var(--ink-soft);
  padding-right: 40px;
}
.faq-item.is-open .faq-item__a > p { padding-bottom: 20px; }
.faq__empty { text-align: center; color: var(--ink-soft); margin-top: 24px; font-size: 14px; }

.contact { background: var(--band); padding: 64px 0; }
.contact__inner { display: grid; gap: 28px; align-items: center; }
.contact h2 { font-size: clamp(24px, 3.6vw, 32px); font-weight: 700; }
.contact p { margin-top: 12px; color: var(--ink-soft); font-size: 15px; }
.contact__box {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}
.contact__phone { font-size: 18px; font-weight: 600; text-decoration: none; }
.contact__note { font-size: 12.5px; }

.footer {
  background: var(--dark);
  color: var(--on-dark);
  padding: 68px 0 28px;
}
.footer__top { display: grid; gap: 34px; }
.footer__brand p { margin-bottom: 18px; font-size: 13px; color: var(--on-dark-soft); max-width: 300px; }
.footer__col { display: flex; flex-direction: column; gap: 9px; }
.footer__col h2 { font-size: 13px; font-weight: 600; color: var(--on-dark); margin-bottom: 4px; }
.footer__col a, .footer__col p { font-size: 13px; color: var(--on-dark-soft); text-decoration: none; }
.footer__col a { width: fit-content; transition: color 200ms var(--ease); }
.footer__col a:hover { color: var(--on-dark); }
.footer__bottom {
  margin-top: 46px;
  padding-top: 20px;
  border-top: 1px solid var(--line-dark);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
  font-size: 12px;
  color: var(--on-dark-soft);
}

.legal { padding: 56px 0 80px; }
.legal__head { max-width: 760px; margin-bottom: 34px; }
.legal__head h1 { font-size: clamp(28px, 4.4vw, 42px); font-weight: 700; }
.legal__meta { margin-top: 12px; font-size: 13.5px; color: var(--ink-soft); }
.legal__layout { display: grid; gap: 36px; align-items: start; }
.legal__toc {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  background: #fff;
}
.legal__toc h2 { font-size: 13px; font-weight: 600; margin-bottom: 12px; }
.legal__toc ol { margin: 0; padding-left: 18px; display: grid; gap: 7px; }
.legal__toc a { font-size: 13px; color: var(--ink-soft); text-decoration: none; }
.legal__toc a:hover { color: var(--accent); }
.legal__body { max-width: 760px; }
.legal__body section { margin-bottom: 34px; scroll-margin-top: 90px; }
.legal__body h2 { font-size: 20px; font-weight: 600; margin-bottom: 10px; }
.legal__body h3 { font-size: 15px; font-weight: 600; margin: 18px 0 6px; }
.legal__body p, .legal__body li { font-size: 14px; color: var(--ink-soft); }
.legal__body p + p { margin-top: 10px; }
.legal__body ul { margin: 10px 0 0; padding-left: 20px; display: grid; gap: 6px; }
.legal__body a { color: var(--accent); }

.progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  z-index: 70;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
}

.reveal {
  opacity: 0;
  transform: translate3d(0, 20px, 0);
  transition: opacity 520ms var(--ease), transform 520ms var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }

@media (min-width: 640px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .tabs { grid-template-columns: repeat(2, 1fr); }
  .start__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__top { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
  .shell { padding: 0 32px; }
  .nav { display: flex; }
  .site-header__actions { display: flex; }
  .burger { display: none; }
  .nav.is-open { display: flex; }
  .hero { padding-top: 84px; }
  .tabs { grid-template-columns: repeat(4, 1fr); }
  .panel-wrap { grid-template-columns: minmax(0, 0.92fr) minmax(0, 1fr); gap: 42px; }
  .panel__media { grid-column: 1; grid-row: 1; }
  .panel { grid-column: 2; grid-row: 1; }
  .cards { grid-template-columns: repeat(3, 1fr); }
  .start__grid { grid-template-columns: repeat(3, 1fr); }
  .contact__inner { grid-template-columns: 1.2fr 1fr; gap: 48px; }
  .footer__top { grid-template-columns: 1.6fr repeat(4, 1fr); }
  .legal__layout { grid-template-columns: 260px minmax(0, 1fr); gap: 54px; }
  .legal__toc { position: sticky; top: 90px; }
}

@media (max-width: 899px) {
  .nav {
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--dark-2);
    flex-direction: column;
    gap: 0;
    padding: 6px 20px 16px;
    border-top: 1px solid var(--line-dark);
  }
  .nav:not(.is-open) { display: none; }
  .nav.is-open { display: flex; }
  .nav a { padding: 12px 0; font-size: 15px; }
  .browser { margin-bottom: -50px; }
  .strip { padding-top: 78px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .marquee__track { animation: none; }
}