:root {
  --lentk-blue: #0057B8;
  --lentk-blue-dark: #003f86;
  --lentk-graphite: #1F2328;
  --lentk-white: #FFFFFF;
  --lentk-light: #F5F7FA;
  --lentk-steel: #8A97A8;
  --lentk-line: #DDE5EE;
  --lentk-line-strong: #C3CEDA;
  --lentk-dark: #11151B;
  --lentk-muted: #5D6876;
  --lentk-surface: #FFFFFF;
  --lentk-shadow: 0 24px 70px rgba(31, 35, 40, 0.12);
  --lentk-radius: 24px;
  --lentk-radius-sm: 14px;
  --lentk-container: 1240px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "Noto Sans", "Noto Sans Display", "Inter", "Segoe UI", Arial, sans-serif;
  color: var(--lentk-graphite);
  background: var(--lentk-white);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.no-scroll {
  overflow: hidden;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

::selection {
  background: rgba(0, 87, 184, 0.16);
}

.site-shell {
  position: relative;
  overflow: hidden;
}

.site-shell::before,
.site-shell::after {
  content: "";
  position: fixed;
  pointer-events: none;
  z-index: -2;
}

.site-shell::before {
  inset: 0;
  background:
    linear-gradient(to right, rgba(31, 35, 40, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(31, 35, 40, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.75), transparent 78%);
}

.site-shell::after {
  width: 560px;
  height: 560px;
  top: -260px;
  right: -180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 87, 184, 0.16), rgba(0, 87, 184, 0));
  filter: blur(2px);
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 12px;
  z-index: 100;
  padding: 12px 16px;
  border-radius: 999px;
  color: #fff;
  background: var(--lentk-blue);
}

.skip-link:focus {
  left: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid rgba(195, 206, 218, 0.72);
  backdrop-filter: blur(20px);
}

.header-inner {
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
}

.logo {
  width: 154px;
  flex: 0 0 auto;
}

.logo img {
  width: 100%;
  height: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 26px;
  margin-left: auto;
  color: var(--lentk-muted);
  font-size: 13px;
  letter-spacing: 0.02em;
}

.nav a {
  position: relative;
  padding: 28px 0;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 18px;
  height: 2px;
  transform: scaleX(0);
  transform-origin: right;
  background: var(--lentk-blue);
  transition: transform .22s ease;
}

.nav a:hover,
.nav a.active {
  color: var(--lentk-graphite);
}

.nav a:hover::after,
.nav a.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-phone {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--lentk-line);
  border-radius: 999px;
  color: var(--lentk-graphite);
  font-size: 13px;
  font-weight: 700;
  background: #fff;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--lentk-line);
  border-radius: 999px;
  background: #fff;
  color: var(--lentk-graphite);
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex-direction: column;
}

.menu-toggle span {
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: transform .2s ease, opacity .2s ease;
}

.menu-open .menu-toggle span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.menu-open .menu-toggle span:nth-child(2) {
  opacity: 0;
}

.menu-open .menu-toggle span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.02em;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #fff;
  background: var(--lentk-blue);
  box-shadow: 0 16px 40px rgba(0, 87, 184, 0.22);
}

.btn-primary:hover {
  background: var(--lentk-blue-dark);
}

.btn-secondary {
  color: var(--lentk-graphite);
  background: #fff;
  border-color: var(--lentk-line);
}

.btn-secondary:hover {
  border-color: var(--lentk-blue);
  color: var(--lentk-blue);
}

.btn-dark {
  color: #fff;
  background: var(--lentk-graphite);
}

.btn-dark:hover {
  background: #0d1117;
}

.btn-ghost {
  color: var(--lentk-blue);
  padding: 0;
  min-height: unset;
  border: none;
  border-radius: 0;
}

.btn-ghost:hover {
  transform: none;
  color: var(--lentk-blue-dark);
}

.hero {
  position: relative;
  padding: 94px 0 70px;
  min-height: calc(100vh - 78px);
  display: flex;
  align-items: center;
  background:
    linear-gradient(115deg, rgba(245, 247, 250, 0.96) 0%, rgba(255, 255, 255, 0.82) 62%, rgba(245, 247, 250, 0.96) 100%);
  border-bottom: 1px solid var(--lentk-line);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to right, rgba(0, 87, 184, 0.11) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 87, 184, 0.08) 1px, transparent 1px);
  background-size: 160px 160px;
  opacity: .48;
  mask-image: linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.04fr .96fr;
  gap: 58px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  color: var(--lentk-blue);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 32px;
  height: 2px;
  background: var(--lentk-blue);
}

.hero h1,
.page-title {
  margin: 0;
  color: var(--lentk-graphite);
  font-size: clamp(42px, 6vw, 82px);
  line-height: .94;
  letter-spacing: -0.055em;
  font-weight: 900;
}

.hero h1 span,
.page-title span {
  color: var(--lentk-blue);
}

.lead {
  margin: 26px 0 0;
  max-width: 690px;
  color: var(--lentk-muted);
  font-size: clamp(17px, 1.5vw, 22px);
  line-height: 1.45;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 46px;
}

.meta-card {
  min-height: 124px;
  padding: 18px;
  border: 1px solid var(--lentk-line);
  border-radius: 20px;
  background: rgba(255, 255, 255, .72);
  backdrop-filter: blur(8px);
}

.meta-card strong {
  display: block;
  margin-bottom: 14px;
  color: var(--lentk-blue);
  font-family: "Noto Sans Mono", "Roboto Mono", monospace;
  font-size: 14px;
}

.meta-card span {
  display: block;
  color: var(--lentk-graphite);
  font-weight: 800;
  line-height: 1.25;
}

.technical-visual {
  position: relative;
  min-height: 580px;
  border: 1px solid rgba(195, 206, 218, 0.92);
  border-radius: 34px;
  overflow: hidden;
  background:
    radial-gradient(circle at 72% 18%, rgba(0, 87, 184, .20), transparent 24%),
    linear-gradient(140deg, #ffffff 0%, #F5F7FA 58%, #EAF0F7 100%);
  box-shadow: var(--lentk-shadow);
}

.technical-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to right, rgba(31, 35, 40, .06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(31, 35, 40, .06) 1px, transparent 1px);
  background-size: 42px 42px;
}

.technical-visual::after {
  content: "";
  position: absolute;
  left: 34px;
  right: 34px;
  bottom: 34px;
  height: 1px;
  background: linear-gradient(90deg, var(--lentk-blue), transparent);
}

.visual-toolbar {
  position: absolute;
  z-index: 2;
  top: 26px;
  left: 26px;
  right: 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.visual-tag {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(0, 87, 184, .18);
  border-radius: 999px;
  color: var(--lentk-blue);
  background: rgba(255,255,255,.78);
  font-family: "Noto Sans Mono", monospace;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.visual-tag::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lentk-blue);
}

.visual-card {
  position: absolute;
  z-index: 3;
  width: 235px;
  padding: 18px;
  border: 1px solid rgba(195, 206, 218, .86);
  border-radius: 22px;
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(10px);
  box-shadow: 0 18px 50px rgba(31,35,40,.1);
}

.visual-card h3 {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.2;
}

.visual-card p {
  margin: 0;
  color: var(--lentk-muted);
  font-size: 12px;
  line-height: 1.45;
}

.visual-card.one {
  left: 36px;
  bottom: 94px;
}

.visual-card.two {
  right: 36px;
  top: 112px;
}

.visual-logo {
  position: absolute;
  z-index: 2;
  right: 34px;
  bottom: 38px;
  width: 132px;
  opacity: .22;
}

.network-svg {
  position: absolute;
  z-index: 1;
  inset: 72px 24px 82px 24px;
}

.network-svg path,
.network-svg line,
.network-svg polyline {
  vector-effect: non-scaling-stroke;
}

.section {
  padding: 102px 0;
  position: relative;
}

.section-muted {
  background: var(--lentk-light);
  border-top: 1px solid var(--lentk-line);
  border-bottom: 1px solid var(--lentk-line);
}

.section-dark {
  color: #fff;
  background:
    linear-gradient(135deg, rgba(31, 35, 40, .98), rgba(13, 18, 25, .98)),
    linear-gradient(to right, rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: auto, 68px 68px, 68px 68px;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, .78fr) minmax(260px, .42fr);
  gap: 42px;
  align-items: end;
  margin-bottom: 42px;
}

.section-title {
  margin: 0;
  color: var(--lentk-graphite);
  font-size: clamp(34px, 4vw, 58px);
  line-height: 1;
  letter-spacing: -0.045em;
  font-weight: 900;
}

.section-dark .section-title,
.section-dark .section-kicker,
.section-dark .section-text {
  color: #fff;
}

.section-text {
  margin: 0;
  color: var(--lentk-muted);
  font-size: 17px;
}

.section-kicker {
  margin: 0 0 12px;
  color: var(--lentk-blue);
  font-family: "Noto Sans Mono", monospace;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .1em;
  text-transform: uppercase;
}

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

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

.service-card,
.object-card,
.review-card,
.document-card,
.contact-card,
.process-card,
.value-card {
  position: relative;
  min-height: 100%;
  border: 1px solid var(--lentk-line);
  border-radius: var(--lentk-radius);
  background: rgba(255,255,255,.86);
  overflow: hidden;
  box-shadow: 0 8px 28px rgba(31, 35, 40, .04);
}

.service-card,
.review-card,
.document-card,
.contact-card,
.process-card,
.value-card {
  padding: 28px;
}

.service-card::before,
.object-card::before,
.document-card::before,
.process-card::before,
.value-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 64px;
  background: var(--lentk-blue);
}

.card-index {
  color: var(--lentk-blue);
  font-family: "Noto Sans Mono", monospace;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.service-card h3,
.review-card h3,
.document-card h3,
.contact-card h3,
.process-card h3,
.value-card h3 {
  margin: 28px 0 12px;
  font-size: 22px;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.service-card p,
.review-card p,
.document-card p,
.contact-card p,
.process-card p,
.value-card p {
  margin: 0;
  color: var(--lentk-muted);
  font-size: 15px;
}

.card-list {
  display: grid;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  color: var(--lentk-muted);
  font-size: 14px;
}

.card-list li {
  position: relative;
  padding-left: 20px;
}

.card-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 2px;
  background: var(--lentk-blue);
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(320px, .55fr);
  gap: 34px;
  align-items: stretch;
}

.about-panel {
  padding: 40px;
  border: 1px solid var(--lentk-line);
  border-radius: 32px;
  background: #fff;
  box-shadow: var(--lentk-shadow);
}

.about-panel h2 {
  margin: 0 0 18px;
  font-size: clamp(32px, 4vw, 56px);
  line-height: 1;
  letter-spacing: -0.05em;
}

.about-panel p {
  margin: 0 0 18px;
  color: var(--lentk-muted);
  font-size: 18px;
}

.about-panel p:last-child {
  margin-bottom: 0;
}

.principles {
  display: grid;
  gap: 12px;
}

.principle {
  padding: 24px;
  border: 1px solid var(--lentk-line);
  border-radius: 22px;
  background: rgba(255,255,255,.86);
}

.principle b {
  display: block;
  margin-bottom: 6px;
  color: var(--lentk-graphite);
  font-size: 16px;
}

.principle span {
  color: var(--lentk-muted);
  font-size: 14px;
}

.object-card {
  display: flex;
  flex-direction: column;
  min-height: 462px;
}

.object-media {
  position: relative;
  min-height: 220px;
  background:
    linear-gradient(135deg, rgba(0,87,184,.08), rgba(31,35,40,.04)),
    linear-gradient(to right, rgba(31,35,40,.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(31,35,40,.07) 1px, transparent 1px),
    #fff;
  background-size: auto, 32px 32px, 32px 32px, auto;
  overflow: hidden;
}

.object-media svg {
  position: absolute;
  inset: 20px;
  width: calc(100% - 40px);
  height: calc(100% - 40px);
}

.object-badge {
  position: absolute;
  z-index: 2;
  left: 18px;
  top: 18px;
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  padding: 0 11px;
  border: 1px solid rgba(0,87,184,.18);
  border-radius: 999px;
  color: var(--lentk-blue);
  background: rgba(255,255,255,.82);
  font-family: "Noto Sans Mono", monospace;
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .06em;
}

.object-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 26px;
}

.object-body h3 {
  margin: 0 0 12px;
  font-size: 23px;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.object-body p {
  margin: 0;
  color: var(--lentk-muted);
  font-size: 15px;
}

.object-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0;
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid var(--lentk-line);
  border-radius: 999px;
  color: var(--lentk-muted);
  background: #fff;
  font-size: 12px;
  font-weight: 700;
}

.object-body .btn-ghost {
  margin-top: auto;
  align-self: flex-start;
}

.process-line {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 16px;
  position: relative;
}

.process-line::before {
  content: "";
  position: absolute;
  top: 40px;
  left: 3%;
  right: 3%;
  height: 1px;
  background: var(--lentk-line-strong);
}

.process-card {
  z-index: 1;
  background: #fff;
}

.process-number {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--lentk-blue);
  font-family: "Noto Sans Mono", monospace;
  font-size: 13px;
  font-weight: 900;
}

.cta-band {
  position: relative;
  overflow: hidden;
  padding: 54px;
  border-radius: 34px;
  background: var(--lentk-graphite);
  color: #fff;
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to right, rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(90deg, transparent, #000 24%, #000 100%);
}

.cta-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
}

.cta-content h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 56px);
  line-height: 1;
  letter-spacing: -0.05em;
}

.cta-content p {
  margin: 18px 0 0;
  max-width: 720px;
  color: rgba(255,255,255,.72);
  font-size: 17px;
}

.review-card {
  background: #fff;
}

.review-card .quote-mark {
  color: var(--lentk-blue);
  font-size: 52px;
  line-height: .8;
  font-weight: 900;
}

.review-card h3 {
  margin-top: 18px;
}

.review-source {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--lentk-line);
  color: var(--lentk-muted);
  font-size: 13px;
}

.review-source::before {
  content: "";
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--lentk-blue), #89B8ED);
}

.documents-strip {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 18px;
}

.document-card {
  min-height: 220px;
}

.footer {
  padding: 54px 0 34px;
  color: rgba(255,255,255,.72);
  background: var(--lentk-graphite);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr .8fr;
  gap: 34px;
  align-items: start;
}

.footer-logo {
  width: 142px;
  margin-bottom: 22px;
  padding: 16px;
  border-radius: 18px;
  background: rgba(255,255,255,.05);
}

.footer h3 {
  margin: 0 0 14px;
  color: #fff;
  font-size: 15px;
}

.footer p,
.footer a {
  margin: 0;
  color: rgba(255,255,255,.72);
  font-size: 14px;
}

.footer nav {
  display: grid;
  gap: 8px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: 42px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.12);
  font-size: 12px;
}

/* Inner pages */
.page-hero {
  padding: 78px 0 58px;
  border-bottom: 1px solid var(--lentk-line);
  background:
    linear-gradient(135deg, rgba(245,247,250,.96), rgba(255,255,255,.86)),
    linear-gradient(to right, rgba(0,87,184,.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0,87,184,.06) 1px, transparent 1px);
  background-size: auto, 96px 96px, 96px 96px;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 26px;
  color: var(--lentk-muted);
  font-size: 13px;
}

.breadcrumbs a {
  color: var(--lentk-blue);
  font-weight: 700;
}

.page-intro {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(280px, .42fr);
  gap: 40px;
  align-items: end;
}

.page-intro .lead {
  margin-top: 0;
  font-size: 18px;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.filter-btn {
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--lentk-line);
  border-radius: 999px;
  color: var(--lentk-muted);
  background: #fff;
  font-size: 13px;
  font-weight: 800;
}

.filter-btn.is-active,
.filter-btn:hover {
  color: #fff;
  border-color: var(--lentk-blue);
  background: var(--lentk-blue);
}

.case-layout {
  display: grid;
  grid-template-columns: minmax(0, .72fr) minmax(320px, .34fr);
  gap: 26px;
  align-items: start;
}

.case-panel,
.spec-panel {
  border: 1px solid var(--lentk-line);
  border-radius: 30px;
  background: #fff;
  overflow: hidden;
}

.case-panel {
  padding: 34px;
}

.case-panel h2,
.spec-panel h2 {
  margin: 0 0 18px;
  font-size: 30px;
  line-height: 1.05;
  letter-spacing: -0.035em;
}

.case-panel p {
  color: var(--lentk-muted);
}

.spec-panel {
  position: sticky;
  top: 102px;
  padding: 28px;
}

.spec-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.spec-list li {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--lentk-line);
  color: var(--lentk-muted);
  font-size: 14px;
}

.spec-list li:last-child {
  border-bottom: 0;
}

.spec-list b {
  color: var(--lentk-graphite);
}

.case-visual {
  position: relative;
  height: 380px;
  margin: 26px 0;
  border: 1px solid var(--lentk-line);
  border-radius: 26px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(0,87,184,.10), rgba(31,35,40,.03)),
    linear-gradient(to right, rgba(31,35,40,.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(31,35,40,.07) 1px, transparent 1px),
    #fff;
  background-size: auto, 34px 34px, 34px 34px, auto;
}

.case-visual svg {
  position: absolute;
  inset: 28px;
  width: calc(100% - 56px);
  height: calc(100% - 56px);
}

.timeline {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 18px;
  align-items: start;
  padding: 18px;
  border: 1px solid var(--lentk-line);
  border-radius: 20px;
  background: #fff;
}

.timeline-item b {
  color: var(--lentk-blue);
  font-family: "Noto Sans Mono", monospace;
}

.timeline-item h3 {
  margin: 0 0 6px;
  font-size: 18px;
}

.timeline-item p {
  margin: 0;
  color: var(--lentk-muted);
  font-size: 14px;
}

.contacts-layout {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(320px, .58fr);
  gap: 24px;
  align-items: stretch;
}

.contact-map {
  min-height: 600px;
  border: 1px solid var(--lentk-line);
  border-radius: 32px;
  overflow: hidden;
  background:
    radial-gradient(circle at 65% 36%, rgba(0,87,184,.18), transparent 24%),
    linear-gradient(to right, rgba(31,35,40,.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(31,35,40,.07) 1px, transparent 1px),
    #fff;
  background-size: auto, 42px 42px, 42px 42px, auto;
  position: relative;
}

.contact-map svg {
  position: absolute;
  inset: 42px;
  width: calc(100% - 84px);
  height: calc(100% - 84px);
}

.map-label {
  position: absolute;
  left: 28px;
  bottom: 28px;
  max-width: 330px;
  padding: 20px;
  border: 1px solid var(--lentk-line);
  border-radius: 22px;
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(10px);
}

.map-label b {
  display: block;
  margin-bottom: 6px;
}

.map-label span {
  color: var(--lentk-muted);
  font-size: 14px;
}

.form-card {
  padding: 30px;
  border: 1px solid var(--lentk-line);
  border-radius: 32px;
  background: #fff;
}

.form-card h2 {
  margin: 0 0 10px;
  font-size: 32px;
  line-height: 1.05;
  letter-spacing: -0.035em;
}

.form-card p {
  margin: 0 0 24px;
  color: var(--lentk-muted);
}

.form-grid {
  display: grid;
  gap: 14px;
}

.field {
  display: grid;
  gap: 8px;
}

.field label {
  color: var(--lentk-muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  min-height: 52px;
  padding: 13px 15px;
  border: 1px solid var(--lentk-line);
  border-radius: 16px;
  color: var(--lentk-graphite);
  background: var(--lentk-light);
  outline: none;
}

.field textarea {
  min-height: 138px;
  resize: vertical;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  border-color: var(--lentk-blue);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(0,87,184,.08);
}

.form-note {
  margin: 14px 0 0;
  color: var(--lentk-muted);
  font-size: 12px;
}

.form-status {
  display: none;
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 14px;
  color: var(--lentk-blue);
  background: rgba(0,87,184,.08);
  font-size: 13px;
  font-weight: 700;
}

.form-status.is-visible {
  display: block;
}

.mobile-cta {
  display: none;
}

@media (max-width: 1120px) {
  .nav {
    gap: 18px;
  }

  .hero-grid,
  .about-layout,
  .case-layout,
  .contacts-layout,
  .page-intro,
  .section-head {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: unset;
    padding-top: 72px;
  }

  .technical-visual {
    min-height: 500px;
  }

  .hero-meta,
  .process-line {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process-line::before {
    display: none;
  }

  .grid-3,
  .documents-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .spec-panel {
    position: static;
  }
}

@media (max-width: 900px) {
  .header-inner {
    height: 70px;
  }

  .logo {
    width: 136px;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .header-phone {
    display: none;
  }

  .nav {
    position: fixed;
    inset: 70px 14px auto 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid var(--lentk-line);
    border-radius: 24px;
    background: rgba(255,255,255,.96);
    box-shadow: var(--lentk-shadow);
  }

  .menu-open .nav {
    display: flex;
  }

  .nav a {
    padding: 14px 16px;
    border-radius: 14px;
    color: var(--lentk-graphite);
  }

  .nav a:hover,
  .nav a.active {
    color: var(--lentk-blue);
    background: rgba(0,87,184,.06);
  }

  .nav a::after {
    display: none;
  }

  .section {
    padding: 76px 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(calc(100% - 30px), var(--lentk-container));
  }

  .hero {
    padding: 48px 0 54px;
  }

  .hero-grid {
    gap: 36px;
  }

  .hero h1,
  .page-title {
    font-size: clamp(38px, 13vw, 58px);
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn,
  .cta-content .btn,
  .form-card .btn {
    width: 100%;
  }

  .hero-meta,
  .grid-3,
  .grid-2,
  .documents-strip,
  .process-line {
    grid-template-columns: 1fr;
  }

  .technical-visual {
    min-height: 500px;
    border-radius: 26px;
  }

  .visual-card {
    width: calc(100% - 52px);
  }

  .visual-card.one {
    left: 26px;
    bottom: 92px;
  }

  .visual-card.two {
    left: 26px;
    right: auto;
    top: 94px;
  }

  .section-head {
    margin-bottom: 30px;
  }

  .about-panel,
  .cta-band,
  .case-panel,
  .form-card {
    padding: 26px;
    border-radius: 26px;
  }

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

  .object-card {
    min-height: auto;
  }

  .object-media {
    min-height: 200px;
  }

  .case-visual {
    height: 310px;
  }

  .spec-list li {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }

  .contact-map {
    min-height: 430px;
  }

  .mobile-cta {
    display: block;
    position: fixed;
    z-index: 40;
    left: 14px;
    right: 14px;
    bottom: 14px;
  }

  .mobile-cta .btn {
    width: 100%;
    box-shadow: 0 16px 50px rgba(0,87,184,.28);
  }
}