:root {
  --bg: #edf2f2;
  --surface: rgba(255, 255, 255, 0.84);
  --surface-strong: rgba(255, 255, 255, 0.94);
  --ink: #16242b;
  --muted: #607179;
  --line: rgba(22, 36, 43, 0.12);
  --accent: #1f5a68;
  --accent-strong: #123742;
  --accent-soft: #dbe8ea;
  --accent-pale: rgba(31, 90, 104, 0.12);
  --white: #ffffff;
  --shadow: 0 24px 60px rgba(12, 26, 32, 0.08);
  --radius-lg: 28px;
  --radius-xl: 36px;
  --container: 1220px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Manrope", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(31, 90, 104, 0.09), transparent 26%),
    radial-gradient(circle at top right, rgba(20, 55, 66, 0.06), transparent 24%),
    linear-gradient(180deg, #f3f6f6 0%, var(--bg) 42%, #f7f9f9 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0.38)),
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 95px,
      rgba(16, 42, 49, 0.032) 96px
    );
  pointer-events: none;
  z-index: -2;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background:
    repeating-linear-gradient(
      180deg,
      transparent 0,
      transparent 95px,
      rgba(16, 42, 49, 0.028) 96px
    );
  opacity: 0.7;
  pointer-events: none;
  z-index: -1;
}

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

a {
  color: inherit;
}

button,
input,
textarea {
  font: inherit;
}

section[id] {
  scroll-margin-top: 108px;
}

.container {
  width: min(var(--container), calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: rgba(243, 246, 246, 0.76);
  transition: background 220ms ease, box-shadow 220ms ease;
}

.site-header::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: transparent;
  transition: background 220ms ease;
}

.site-header.site-header--scrolled {
  background: rgba(243, 246, 246, 0.94);
  box-shadow: 0 14px 36px rgba(15, 34, 40, 0.08);
}

.site-header.site-header--scrolled::after {
  background: var(--line);
}

.header__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  padding: 18px 0;
}

.brand {
  display: grid;
  gap: 6px;
  text-decoration: none;
}

.brand__descriptor {
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 22px;
}

.site-nav a {
  font-size: 0.94rem;
  text-decoration: none;
  color: var(--muted);
  transition: color 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--ink);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease,
    border-color 180ms ease,
    color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button--primary {
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 18px 35px rgba(31, 90, 104, 0.2);
}

.button--primary:hover,
.button--primary:focus-visible {
  background: #1a4e59;
}

.button--secondary {
  background: rgba(255, 255, 255, 0.62);
  border-color: rgba(22, 36, 43, 0.1);
  color: var(--ink);
}

.button--secondary:hover,
.button--secondary:focus-visible {
  background: rgba(255, 255, 255, 0.92);
}

.button--light {
  background: var(--white);
  color: var(--accent-strong);
}

.button--ghost {
  border-color: rgba(255, 255, 255, 0.22);
  color: var(--white);
  background: rgba(255, 255, 255, 0.05);
}

.button--full {
  width: 100%;
}

.eyebrow,
.panel__eyebrow {
  display: inline-flex;
  font-size: 0.79rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.panel__eyebrow--light {
  color: rgba(255, 255, 255, 0.68);
}

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(6, 15, 21, 0.88) 0%, rgba(6, 15, 21, 0.8) 38%, rgba(6, 15, 21, 0.56) 68%, rgba(6, 15, 21, 0.72) 100%),
    linear-gradient(180deg, rgba(8, 18, 25, 0.08) 0%, rgba(8, 18, 25, 0.54) 100%),
    var(--hero-image) center center / cover no-repeat;
  min-height: clamp(680px, calc(100svh - 88px), 860px);
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, 430px);
  gap: clamp(28px, 4vw, 72px);
  align-items: center;
  min-height: clamp(680px, calc(100svh - 88px), 860px);
  padding: clamp(72px, 9vw, 124px) 0 72px;
}

.hero__copy,
.hero__stage,
.section__header,
.object-card,
.solution-item,
.task-item,
.process-step,
.trust-item,
.diagram-panel,
.media-photo,
.example-card,
.faq-item,
.cta-band,
.contact-copy,
.lead-card {
  will-change: transform, opacity;
}

.hero__copy {
  display: grid;
  gap: 18px;
  max-width: 640px;
  color: var(--white);
}

.hero .eyebrow {
  color: rgba(196, 227, 233, 0.92);
}

.hero h1 {
  margin: 0;
  max-width: 8.5ch;
  font-size: clamp(2.95rem, 5vw, 5.3rem);
  line-height: 0.94;
  letter-spacing: -0.065em;
  color: var(--white);
}

.hero__lead {
  margin: 0;
  max-width: 32rem;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.06rem;
  line-height: 1.68;
}

.hero__facts {
  display: grid;
  gap: 13px;
  max-width: 30rem;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.hero__facts span {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  font-weight: 600;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.9);
}

.hero__facts i {
  width: 10px;
  height: 10px;
  margin-top: 0.48rem;
  border-radius: 50%;
  background: #89d8e2;
  box-shadow: 0 0 0 7px rgba(137, 216, 226, 0.16);
  flex: none;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding-top: 6px;
}

.media-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 18, 24, 0.08), rgba(7, 18, 24, 0.34));
  pointer-events: none;
}

.media-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.66) contrast(1.02) brightness(1.02);
}

.panel {
  background: var(--surface);
  border: 1px solid rgba(18, 55, 66, 0.12);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.hero__blueprint,
.diagram-panel {
  display: grid;
  gap: 16px;
  padding: 22px;
}

.lead-card {
  background: var(--surface-strong);
  border: 1px solid rgba(18, 55, 66, 0.12);
  border-radius: 32px;
  box-shadow: var(--shadow);
  padding: 28px;
  display: grid;
  gap: 16px;
}

.lead-card__header {
  display: grid;
  gap: 10px;
}

.lead-card h2,
.section__title,
.cta-band h2 {
  margin: 0;
  letter-spacing: -0.05em;
}

.lead-card h2 {
  font-size: 1.55rem;
}

.lead-card--hero {
  align-self: center;
  width: 100%;
  max-width: 430px;
  justify-self: end;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: none;
  backdrop-filter: blur(14px);
}

.lead-card--hero .panel__eyebrow {
  color: rgba(196, 227, 233, 0.9);
}

.lead-card--hero h2,
.lead-card--hero .field-group span {
  color: var(--white);
}

.lead-card--hero .lead-card__header p {
  color: rgba(255, 255, 255, 0.76);
}

.lead-card--hero .field {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--white);
}

.lead-card--hero .field::placeholder {
  color: rgba(255, 255, 255, 0.55);
}

.lead-card--hero .field:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(137, 216, 226, 0.7);
  box-shadow: 0 0 0 4px rgba(137, 216, 226, 0.15);
}

.lead-card--hero .button--primary,
.hero .button--primary {
  background: #89d8e2;
  color: #0f2830;
  box-shadow: 0 18px 35px rgba(6, 15, 21, 0.22);
}

.lead-card--hero .button--primary:hover,
.lead-card--hero .button--primary:focus-visible,
.hero .button--primary:hover,
.hero .button--primary:focus-visible {
  background: #9ce3ec;
}

.hero .button--secondary {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.28);
  color: var(--white);
}

.hero .button--secondary:hover,
.hero .button--secondary:focus-visible {
  background: rgba(255, 255, 255, 0.16);
}

.lead-card--hero .form-status {
  color: rgba(196, 227, 233, 0.92);
}

.field-group {
  display: grid;
  gap: 9px;
}

.field-group span {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--ink);
}

.field {
  min-height: 56px;
  width: 100%;
  padding: 0 18px;
  border-radius: 18px;
  border: 1px solid rgba(18, 55, 66, 0.14);
  background: rgba(246, 249, 249, 0.96);
  color: var(--ink);
  transition: border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.field:focus-visible {
  outline: none;
  border-color: var(--accent);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(31, 90, 104, 0.13);
}

.field--textarea {
  min-height: 144px;
  padding: 16px 18px;
  resize: vertical;
}

.form-status {
  margin: 0;
  min-height: 1.3rem;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--accent-strong);
}

.section {
  padding: 98px 0;
}

.section--tinted {
  background:
    linear-gradient(180deg, rgba(219, 232, 234, 0.45), rgba(255, 255, 255, 0) 58%);
}

.section--dark {
  background:
    radial-gradient(circle at top right, rgba(71, 143, 159, 0.2), transparent 30%),
    linear-gradient(180deg, #102a31 0%, #15333c 100%);
  color: var(--white);
}

.section--dark .section__lead,
.section--dark .process-step p {
  color: rgba(244, 248, 248, 0.72);
}

.section--dark .eyebrow {
  color: #8bc4cf;
}

.section__header {
  display: grid;
  gap: 16px;
  max-width: 760px;
  margin-bottom: 38px;
}

.section__title {
  font-size: clamp(2rem, 4vw, 3.38rem);
  line-height: 1.02;
}

.section__lead,
.diagram-panel p,
.lead-card__header p,
.contact-note span,
.footer__brand p,
.footer__credits,
.solution-item p,
.task-item p,
.process-step p,
.trust-item p,
.example-card p,
.cta-band p {
  color: var(--muted);
  line-height: 1.72;
}

.object-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.object-card {
  padding: 24px;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.6);
  border-top: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45);
}

.object-card svg {
  width: 36px;
  height: 36px;
  stroke: var(--accent);
  stroke-width: 1.65;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

.object-card h3,
.solution-item h3,
.task-item strong,
.process-step h3,
.trust-item h3,
.example-card h3,
.faq-trigger,
.contact-note strong {
  letter-spacing: -0.03em;
}

.object-card h3,
.trust-item h3,
.example-card h3 {
  margin: 0 0 10px;
  font-size: 1.14rem;
}

.object-card p,
.solution-item p,
.trust-item p,
.example-card p,
.cta-band p,
.footer__credits,
.footer__brand p {
  margin: 0;
}

.split-layout,
.task-layout,
.trust-layout,
.examples-layout,
.contact-layout {
  display: grid;
  gap: 28px;
  align-items: start;
}

.split-layout {
  grid-template-columns: minmax(0, 1.12fr) minmax(310px, 0.88fr);
}

.split-layout__main {
  min-width: 0;
}

.diagram-panel {
  position: sticky;
  top: 108px;
}

.diagram-panel--accent {
  background:
    linear-gradient(180deg, rgba(219, 232, 234, 0.66), rgba(255, 255, 255, 0.88));
}

.solution-list {
  display: grid;
}

.solution-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 18px;
  padding: 23px 0;
  border-top: 1px solid var(--line);
}

.solution-item:last-child {
  border-bottom: 1px solid var(--line);
}

.solution-item__index {
  font-size: 1.28rem;
  font-weight: 800;
  color: var(--accent);
}

.solution-item h3 {
  margin: 0 0 8px;
  font-size: 1.16rem;
}

.task-layout {
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
}

.task-list,
.trust-list,
.contact-notes {
  display: grid;
  gap: 14px;
}

.task-item,
.trust-item,
.example-card {
  padding: 24px;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(18, 55, 66, 0.1);
}

.task-item strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.08rem;
}

.media-stack,
.examples-side {
  display: grid;
  gap: 18px;
}

.media-photo {
  position: relative;
  overflow: hidden;
  margin: 0;
  min-height: 358px;
  border-radius: 32px;
  box-shadow: var(--shadow);
}

.media-photo--compact {
  min-height: 312px;
}

.process-track {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
}

.process-step {
  min-height: 244px;
  padding: 24px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(16px);
}

.process-step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin-bottom: 20px;
  border-radius: 50%;
  background: rgba(139, 196, 207, 0.12);
  color: #9ad2dd;
  font-weight: 800;
}

.process-step h3 {
  margin: 0 0 10px;
  font-size: 1.13rem;
  color: var(--white);
}

.trust-layout {
  grid-template-columns: minmax(0, 1.04fr) minmax(320px, 0.96fr);
}

.examples-layout {
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
}

.example-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.example-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 12px;
}

.example-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.82rem;
  font-weight: 800;
}

.section--faq {
  padding-top: 82px;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  border-radius: 24px;
  border: 1px solid rgba(18, 55, 66, 0.1);
  background: rgba(255, 255, 255, 0.8);
}

.faq-trigger {
  width: 100%;
  padding: 24px 28px;
  border: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: transparent;
  color: var(--ink);
  font-size: 1.04rem;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
}

.faq-trigger__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-pale);
  color: var(--accent-strong);
  font-size: 1.2rem;
  line-height: 1;
  transition: transform 180ms ease;
}

.faq-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 240ms ease;
}

.faq-panel__inner {
  overflow: hidden;
  padding: 0 28px;
  color: var(--muted);
  line-height: 1.72;
}

.faq-item.is-open .faq-panel {
  grid-template-rows: 1fr;
}

.faq-item.is-open .faq-panel__inner {
  padding-bottom: 24px;
}

.faq-item.is-open .faq-trigger__icon {
  transform: rotate(45deg);
}

.cta-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  padding: 38px 42px;
  border-radius: 34px;
  background:
    radial-gradient(circle at top right, rgba(139, 196, 207, 0.18), transparent 28%),
    linear-gradient(135deg, #123742 0%, #1b505c 100%);
  color: var(--white);
  box-shadow: var(--shadow);
}

.cta-band h2 {
  font-size: clamp(1.9rem, 3vw, 2.9rem);
  line-height: 1;
  margin-bottom: 12px;
}

.cta-band p {
  color: rgba(255, 255, 255, 0.76);
}

.cta-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.section--contact {
  padding-top: 72px;
}

.contact-layout {
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
}

.contact-copy {
  display: grid;
  gap: 20px;
}

.contact-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.field-group--full {
  grid-column: 1 / -1;
}

.contact-note {
  padding: 18px 20px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.52);
  border: 1px solid rgba(18, 55, 66, 0.08);
}

.site-footer {
  padding: 30px 0 42px;
  background: rgba(240, 244, 244, 0.82);
  border-top: 1px solid rgba(18, 55, 66, 0.08);
}

.footer__inner {
  display: grid;
  gap: 28px;
}

.footer__brand {
  display: grid;
  gap: 14px;
  max-width: 560px;
}

.footer__contacts {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
  padding-top: 12px;
  border-top: 1px solid rgba(18, 55, 66, 0.08);
}

.footer__contacts div {
  display: grid;
  gap: 8px;
}

.footer__contacts span {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.footer__contacts a,
.footer__contacts p {
  margin: 0;
  color: var(--ink);
  text-decoration: none;
  line-height: 1.65;
}

.footer__credits {
  padding-top: 10px;
  border-top: 1px solid rgba(18, 55, 66, 0.08);
  font-size: 0.92rem;
}

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 720ms ease, transform 720ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-6px);
  }
}

@media (max-width: 1120px) {
  .hero__inner,
  .split-layout,
  .task-layout,
  .trust-layout,
  .examples-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero__inner {
    min-height: auto;
    padding: 84px 0 64px;
  }

  .lead-card--hero {
    justify-self: start;
    max-width: 520px;
  }

  .diagram-panel {
    position: static;
  }

  .object-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .process-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .footer__contacts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .header__inner {
    grid-template-columns: 1fr auto;
  }

  .site-nav {
    grid-column: 1 / -1;
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .object-grid,
  .example-grid,
  .contact-form-grid,
  .footer__contacts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process-track {
    grid-template-columns: 1fr 1fr;
  }

  .cta-band {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .container {
    width: min(var(--container), calc(100% - 28px));
  }

  .header__inner {
    gap: 16px;
  }

  .brand img {
    width: 198px;
    height: auto;
  }

  .brand__descriptor {
    font-size: 0.72rem;
  }

  .header__cta {
    display: none;
  }

  .hero h1 {
    max-width: 9ch;
  }

  .hero__actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero__inner {
    padding: 68px 0 54px;
  }

  .lead-card--hero {
    max-width: 100%;
  }

  .object-grid,
  .example-grid,
  .contact-form-grid,
  .footer__contacts,
  .process-track {
    grid-template-columns: 1fr;
  }

  .solution-item {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .faq-trigger {
    padding: 20px 22px;
    font-size: 0.99rem;
  }

  .faq-panel__inner {
    padding: 0 22px;
  }

  .faq-item.is-open .faq-panel__inner {
    padding-bottom: 22px;
  }

  .cta-band {
    padding: 28px;
  }

  .lead-card,
  .diagram-panel {
    padding: 22px;
  }

  .section {
    padding: 82px 0;
  }
}