:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-alt: #eef2fb;
  --text: #17191f;
  --muted: #5c6475;
  --line: rgba(23, 25, 31, 0.1);
  --primary: #33419a;
  --primary-dark: #28337a;
  --shadow: 0 24px 80px rgba(28, 39, 88, 0.12);
  --radius-lg: 32px;
  --radius-md: 22px;
  --radius-sm: 16px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(51, 65, 154, 0.08), transparent 24%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.topbar {
  background: var(--primary);
  color: #fff;
  font-size: 0.92rem;
}

.topbar__inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
}

.topbar p {
  margin: 0;
}

.topbar a {
  color: #fff;
  opacity: 0.92;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.6);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), #5164d5);
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.04em;
  box-shadow: 0 16px 30px rgba(51, 65, 154, 0.22);
}

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand__text strong {
  font-size: 1.05rem;
}

.brand__text small {
  color: var(--muted);
  font-size: 0.82rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-weight: 500;
}

.nav a {
  position: relative;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.nav a:hover::after,
.nav a:focus-visible::after {
  transform: scaleX(1);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  border: 1px solid transparent;
  box-shadow: 0 14px 24px rgba(51, 65, 154, 0.22);
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 18px 28px rgba(51, 65, 154, 0.26);
  background: var(--primary-dark);
}

.button--ghost {
  background: rgba(255, 255, 255, 0.7);
  color: var(--primary);
  border-color: rgba(51, 65, 154, 0.2);
  box-shadow: none;
}

.button--ghost:hover,
.button--ghost:focus-visible {
  background: rgba(51, 65, 154, 0.08);
}

.section {
  padding: 96px 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  color: var(--primary);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  font-weight: 800;
}

.eyebrow::before {
  content: "";
  width: 42px;
  height: 2px;
  background: currentColor;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 44px;
}

.section-heading--center,
.light {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-heading h2,
.trust__copy h2,
.faq__intro h2,
.footer__top h2 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 3.4vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: -0.04em;
}

.section-heading p,
.trust__copy p,
.faq__intro p,
.footer__top p,
.hero__lead,
.catalog__intro p {
  color: var(--muted);
  margin: 0;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 72px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(16, 22, 51, 0.88), rgba(28, 39, 88, 0.58)),
    radial-gradient(circle at top right, rgba(95, 128, 255, 0.28), transparent 28%);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.75), transparent);
}

.hero__content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 44px;
  align-items: center;
}

.hero__copy {
  color: #fff;
}

.hero__copy .eyebrow,
.light .eyebrow {
  color: #c6cffd;
}

.hero__copy h1 {
  margin: 0;
  font-size: clamp(2.6rem, 5.2vw, 5.4rem);
  line-height: 0.94;
  letter-spacing: -0.06em;
}

.hero__lead {
  margin-top: 24px;
  max-width: 640px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.08rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 44px 0 0;
  padding: 0;
  list-style: none;
}

.hero__stats li,
.hero-card,
.service-card,
.product-card,
.content-block,
.faq__list details {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  backdrop-filter: blur(8px);
}

.hero__stats li {
  padding: 20px;
  background: rgba(255, 255, 255, 0.08);
}

.hero__stats strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1rem;
}

.hero__stats span {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.92rem;
}

.hero__panel {
  display: grid;
  gap: 18px;
}

.hero-card {
  padding: 24px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.hero-card--large {
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.16)),
    linear-gradient(135deg, rgba(51, 65, 154, 0.18), rgba(95, 128, 255, 0.08));
}

.hero-card__label {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.82);
}

.hero-card--large strong {
  font-size: 1.8rem;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.hero-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.84);
}

.hero-card__dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  margin-bottom: 14px;
  border-radius: 50%;
  background: #8ca0ff;
  box-shadow: 0 0 0 8px rgba(140, 160, 255, 0.18);
}

.services__grid,
.advantages__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.service-card,
.product-card,
.content-block,
.faq__list details {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(23, 25, 31, 0.08);
  box-shadow: var(--shadow);
}

.service-card {
  padding: 28px;
}

.service-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 18px;
  border-radius: 14px;
  background: var(--surface-alt);
  color: var(--primary);
  font-weight: 800;
}

.service-card h3,
.product-card h3,
.trust__list h3,
.content-block h3 {
  margin: 0 0 12px;
  font-size: 1.3rem;
  line-height: 1.15;
}

.service-card p,
.product-card p,
.trust__list p,
.content-block p {
  margin: 0;
  color: var(--muted);
}

.catalog {
  padding-top: 48px;
}

.catalog__layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.42fr) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.catalog__intro {
  position: sticky;
  top: 120px;
  padding: 32px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--surface), #edf2ff);
  border: 1px solid rgba(51, 65, 154, 0.12);
  box-shadow: var(--shadow);
}

.catalog__intro h2 {
  margin: 0 0 14px;
  font-size: clamp(1.9rem, 3.4vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.catalog__intro .button {
  margin-top: 24px;
}

.catalog__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.product-card {
  min-height: 220px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.46), rgba(255, 255, 255, 0.94)),
    radial-gradient(circle at top right, rgba(51, 65, 154, 0.16), transparent 34%);
}

.product-card--accent {
  background: linear-gradient(180deg, var(--primary), var(--primary-dark));
  color: #fff;
}

.product-card--accent p {
  color: rgba(255, 255, 255, 0.78);
}

.trust__content {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 32px;
  align-items: center;
  padding: 42px;
  border-radius: calc(var(--radius-lg) + 6px);
  background:
    linear-gradient(140deg, rgba(51, 65, 154, 0.95), rgba(22, 27, 59, 0.96)),
    radial-gradient(circle at top right, rgba(120, 151, 255, 0.28), transparent 30%);
  box-shadow: var(--shadow);
}

.trust__copy h2,
.trust__copy p,
.trust__list h3,
.trust__list p {
  color: #fff;
}

.trust__list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.trust__list article {
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.08);
}

.production {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(236, 241, 255, 0.82));
}

.content-stack {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.content-block {
  padding: 28px;
}

.advantages {
  position: relative;
  color: #fff;
  background:
    linear-gradient(180deg, rgba(12, 16, 36, 0.88), rgba(12, 16, 36, 0.88)),
    radial-gradient(circle at top right, rgba(72, 96, 214, 0.4), transparent 32%);
}

.advantages__grid {
  margin-top: 40px;
}

.advantages__grid article {
  padding: 28px 22px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.05);
  font-weight: 600;
  text-align: center;
}

.faq__layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.42fr) minmax(0, 1fr);
  gap: 28px;
}

.faq__list {
  display: grid;
  gap: 14px;
}

.faq__list details {
  padding: 0 24px;
}

.faq__list summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px 0;
  font-weight: 700;
}

.faq__list summary::-webkit-details-marker {
  display: none;
}

.faq__list summary::after {
  content: "+";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--surface-alt);
  color: var(--primary);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.faq__list details[open] summary::after {
  content: "-";
}

.faq__list details p {
  margin: 0;
  padding: 0 0 22px;
  color: var(--muted);
}

.site-footer {
  padding: 32px 0 56px;
  background: #11152e;
  color: #fff;
}

.footer__top,
.footer__grid {
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

.footer__top {
  align-items: center;
  padding: 24px 0 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer__grid {
  padding-top: 28px;
}

.footer__grid > div {
  flex: 1;
}

.footer__grid h3 {
  margin: 0 0 14px;
  font-size: 1rem;
}

.footer__grid p {
  margin: 8px 0;
  color: rgba(255, 255, 255, 0.74);
}

@media (max-width: 1100px) {
  .nav,
  .header__cta {
    display: none;
  }

  .hero__content,
  .catalog__layout,
  .trust__content,
  .faq__layout {
    grid-template-columns: 1fr;
  }

  .catalog__intro {
    position: static;
  }

  .catalog__grid,
  .services__grid,
  .trust__list,
  .content-stack,
  .advantages__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .section {
    padding: 72px 0;
  }

  .topbar__inner,
  .header__inner,
  .footer__top,
  .footer__grid {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero {
    padding-top: 72px;
  }

  .hero__stats,
  .catalog__grid,
  .services__grid,
  .trust__list,
  .content-stack,
  .advantages__grid {
    grid-template-columns: 1fr;
  }

  .hero__copy h1 {
    line-height: 1;
  }

  .trust__content,
  .catalog__intro,
  .service-card,
  .product-card,
  .content-block,
  .faq__list details {
    padding-left: 22px;
    padding-right: 22px;
  }
}