:root {
  --bg-top: #f5f7fb;
  --bg-bottom: #eef3f8;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-strong: rgba(255, 255, 255, 0.94);
  --line: rgba(110, 138, 171, 0.2);
  --line-strong: rgba(110, 138, 171, 0.36);
  --text: #10253e;
  --muted: rgba(16, 37, 62, 0.72);
  --brand: #153453;
  --brand-soft: #6ba6d4;
  --gold: #b8945f;
  --shadow-soft: 0 24px 60px rgba(16, 37, 62, 0.08);
  --shadow-strong: 0 36px 86px rgba(16, 37, 62, 0.14);
  --radius-xl: 34px;
  --radius-lg: 26px;
  --radius-md: 20px;
  --container: 1240px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

[id] {
  scroll-margin-top: 120px;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(107, 166, 212, 0.12), transparent 24%),
    radial-gradient(circle at 85% 12%, rgba(184, 148, 95, 0.1), transparent 18%),
    linear-gradient(180deg, #f8fbff 0%, var(--bg-bottom) 44%, #f8f9fb 100%);
}

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

a {
  color: inherit;
}

h1,
h2,
h3,
p,
ul {
  margin: 0;
}

.page-shell {
  padding: 18px 24px 24px;
}

.topbar,
.hero,
.section,
.footer {
  width: min(var(--container), 100%);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
  flex-shrink: 0;
}

.brand__mark {
  width: 80px;           /* ← уменьшил для компактности */
  height: 80px;
  border-radius: 16px;
  overflow: hidden;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(234, 240, 248, 0.86));
  border: 1px solid rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow-soft);
  padding: 8px;
  flex-shrink: 0;
}

.brand__mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand__info {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  gap: 2px;
}

.brand__name {
  font-size: 28px;
  font-weight: 900;
  color: var(--text);
  letter-spacing: 0.5px;
}

.brand__subtitle {
  font-size: 10px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.3px;
  text-transform: uppercase;
  opacity: 0.7;
}

/* ===== ТОПБАР ===== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 10px 0 22px;
  background: linear-gradient(180deg, rgba(248, 251, 255, 0.96), rgba(248, 251, 255, 0.78));
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

/* ===== НАВИГАЦИЯ ===== */
.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 70px;
  padding: 12px 70px;
  width: fit-content;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(255, 255, 255, 0.82);
  box-shadow: 0 12px 34px rgba(16, 37, 62, 0.05);
  backdrop-filter: blur(16px);
  margin-left: auto;
  -webkit-backdrop-filter: blur(16px);
}

.nav a {
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  color: rgba(16, 37, 62, 0.6);
  transition: all 0.3s ease;
  white-space: nowrap;
  padding: 4px 0;
  position: relative;
}

.nav a:hover {
  color: #152459;
  font-weight: 600;
  transform: scale(1.05);
}

.nav a.active {
  color: #6c63ff;
  font-weight: 600;
}

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

.topbar__cta {
  justify-self: end;
}

/* ===== АДАПТИВНОСТЬ ===== */
@media (max-width: 1024px) {
  .topbar {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .brand {
    justify-content: center;
  }
  
  .nav {
    justify-content: center;
    gap: 30px;
    padding: 10px 24px;
  }
  
  .topbar__cta {
    justify-self: center;
  }
}

@media (max-width: 768px) {
  .brand__mark {
    width: 48px;
    height: 48px;
  }
  
  .brand__name {
    font-size: 15px;
  }
  
  .brand__subtitle {
    font-size: 8px;
  }
  
  .nav {
    gap: 20px;
    padding: 8px 16px;
    border-radius: 40px;
  }
  
  .nav a {
    font-size: 12px;
  }
}

@media (max-width: 480px) {
  .brand__info {
    display: none;  /* скрываем текст на очень маленьких экранах */
  }
  
  .brand__mark {
    width: 40px;
    height: 40px;
  }
  
  .nav {
    gap: 12px;
    padding: 6px 12px;
  }
  
  .nav a {
    font-size: 11px;
  }
  
  .button {
    padding: 8px 16px;
    font-size: 12px;
    min-height: 40px;
  }
}

.section {
  padding: 64px 0;
}

.benefits-strip {
  width: min(var(--container), 100%);
  margin: 80px auto 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  background:
    radial-gradient(circle at top center, rgba(107, 166, 212, 0.11), transparent 58%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(240, 246, 252, 0.92));
  border: 1px solid rgba(110, 138, 171, 0.16);
  border-radius: 34px;
  box-shadow:
    0 18px 44px rgba(16, 37, 62, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.55);
}

.benefits-strip__item {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  padding: 22px 26px;
  border-right: 1px solid rgba(110, 138, 171, 0.12);
  transition:
    transform 0.28s ease,
    box-shadow 0.28s ease,
    border-color 0.28s ease;
}

.benefits-strip__item:last-child {
  border-right: none;
}

.benefits-strip__item:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 28px rgba(16, 37, 62, 0.08);
  border-color: rgba(110, 138, 171, 0.18);
}

.benefits-strip__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 62px;
  height: 62px;
  border-radius: 18px;
  border: 1px solid rgba(34, 72, 112, 0.24);
  background:
    radial-gradient(circle at 30% 28%, rgba(255, 255, 255, 0.98), rgba(229, 237, 246, 0.98));
  color: #163b63;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.86),
    0 10px 22px rgba(16, 37, 62, 0.08);
  line-height: 1;
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease,
    border-color 0.3s ease,
    color 0.3s ease;
}

.benefits-strip__item:hover .benefits-strip__icon {
  transform: translateY(-1px) scale(1.04);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.92),
    0 12px 24px rgba(16, 37, 62, 0.12);
}

.benefits-strip__icon svg {
  width: 28px;
  height: 28px;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.benefits-strip__text {
  display: grid;
  gap: 8px;
}

.benefits-strip__text strong {
  display: inline-block;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #10253e;
  transition: transform 0.22s ease;
}

.benefits-strip__item:hover .benefits-strip__text strong {
  transform: translateY(-1px);
}

.benefits-strip__text span {
  color: rgba(16, 37, 62, 0.76);
  line-height: 1.5;
  font-size: 11px;
}

.benefits-strip__item:nth-child(1) .benefits-strip__icon {
  border-color: rgba(20, 61, 103, 0.26);
  background:
    radial-gradient(circle at 30% 28%, rgba(255, 255, 255, 0.99), rgba(223, 234, 247, 0.99));
  color: #11385f;
}

.benefits-strip__item:nth-child(1) .benefits-strip__text strong {
  color: #123f72;
}

.benefits-strip__item:nth-child(2) .benefits-strip__icon {
  border-color: rgba(30, 72, 111, 0.24);
  background:
    radial-gradient(circle at 30% 28%, rgba(255, 255, 255, 0.99), rgba(226, 236, 246, 0.99));
  color: #1a446b;
}

.benefits-strip__item:nth-child(2) .benefits-strip__text strong {
  color: #285b7d;
}

.benefits-strip__item:nth-child(3) .benefits-strip__icon {
  border-color: rgba(36, 79, 119, 0.24);
  background:
    radial-gradient(circle at 30% 28%, rgba(255, 255, 255, 0.99), rgba(225, 235, 245, 0.99));
  color: #225078;
}

.benefits-strip__item:nth-child(3) .benefits-strip__text strong {
  color: #2f6289;
}

.benefits-strip__item:nth-child(4) .benefits-strip__icon {
  border-color: rgba(40, 71, 107, 0.24);
  background:
    radial-gradient(circle at 30% 28%, rgba(255, 255, 255, 0.99), rgba(227, 233, 243, 0.99));
  color: #264c71;
}

.benefits-strip__item:nth-child(4) .benefits-strip__text strong {
  color: #3d527e;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(460px, 620px);
  gap: 34px;
  align-items: center;
  padding: 6px 0 28px;
  margin-top: 50px;  /* ← увеличивает отступ сверху */
}

.hero__copy h1 {
  position: relative;
  padding-top: 50px;  /* ← увеличивает отступ сверху */
}

.hero__copy h1 br {
  display: none; /* убираем переносы, если есть */
}

.hero__copy h1 {
  background: linear-gradient(
    90deg, 
    #1a1a2e 0%, 
    #09385e 30%, 
    #002e5b 50%, 
    #0a487a 70%, 
    #1a1a2e 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 400% auto;
  animation: wave 12s linear infinite;
}

@keyframes wave {
  0% { background-position: 0% center; }
  100% { background-position: 400% center; }
}

.hero__subactions {
  margin-top: 16px;      /* отступ от кнопок */
  max-width: 460px;      /* чтобы текст не растягивался */
}

.hero__note {
  font-size: 14px;
  line-height: 1.6;
  color: #6a6a8a;        /* спокойный серо-синий */
  margin: 0;
  padding: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #617fa4;
}

.eyebrow::before {
  content: "";
  width: 40px;
  height: 1px;
  background: linear-gradient(90deg, rgba(21, 52, 83, 0.72), rgba(107, 166, 212, 0.16));
}

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

h1 {
  max-width: 720px;
  font-size: clamp(38px, 4.8vw, 68px);
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.hero__accent {
  display: block;
  color: #5f7d5f;
}

h2 {
  font-size: clamp(30px, 3.2vw, 44px);
  line-height: 1.04;
  letter-spacing: -0.04em;
}

h3 {
  font-size: 23px;
  line-height: 1.14;
}


.lead,
.section-head p,
.summary-card p,
.product-card p,
.media-card__header small,
.case-card p,
.install-step p,
.download-panel__copy p,
.footer p {
  color: var(--muted);
  line-height: 1.66;
}

.lead {
  font-size: 18px;
  line-height: 1.9;
  color: #4a4a6a;
  max-width: 460px;
  margin: 0 0 16px 0;
  padding-top: 30px;
}


.lead-line {
  display: block;
}

.hero__actions,
.download-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 20px;
}

.hero__actions {
  align-items: stretch;
  flex-wrap: nowrap;
  width: min(100%, 600px);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 8px;
  position: relative;
  overflow: hidden;
  min-height: 54px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.72);
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
  transition:
    transform 0.22s ease,
    border-color 0.22s ease,
    background-color 0.22s ease,
    box-shadow 0.22s ease,
    color 0.22s ease;
}

.hero__actions .button {
  flex: 1 1 0;
  min-height: 72px;
  padding: 12px 20px;
}

.button::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 20%, rgba(255, 255, 255, 0.22) 50%, transparent 80%);
  transform: translateX(-140%);
  transition: transform 0.7s ease;
  pointer-events: none;
}

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

.button:hover::after {
  transform: translateX(140%);
}

.button:active {
  transform: translateY(0) scale(0.985);
}

.button--primary {
  background: linear-gradient(135deg, #143555 0%, #234a73 100%);
  border-color: #143555;
  color: #ffffff;
  box-shadow: 0 16px 34px rgba(20, 53, 85, 0.2);
}

.button--primary:hover {
  box-shadow: 0 20px 40px rgba(20, 53, 85, 0.26);
}

.button__label {
  display: block;
  font-size: 17px;
  line-height: 1.15;
  text-align: center;
}

.button__meta {
  display: block;
  font-size: 10px;
  line-height: 1;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.62);
  text-align: center;
}

.button--ghost:hover {
  border-color: rgba(20, 53, 85, 0.34);
  background: rgba(255, 255, 255, 0.92);
}

.product-card,
.media-card,
.case-card,
.install-step,
.download-panel {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--surface-strong), var(--surface));
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
}
.case-card__body h3,
.footer strong {
  display: block;
  margin-bottom: 10px;
}

.hero__visual {
  position: relative;
}

.hero-monitor {
  position: relative;
  padding-top: 30px;
  transform: perspective(1400px) rotateY(-10deg) rotateX(3deg);
  transform-origin: center center;
}

.hero-monitor__screen {
  overflow: hidden;
  border-radius: 0;
  background: #dfe7f0;
  width: 766px;
  max-width: 80vw;
  height: auto;
  aspect-ratio: 1.96 / 1;
  max-height: 75vh;     
  box-shadow: 
    0 30px 80px rgba(0, 0, 0, 0.7),
    0 0 0 1px rgba(255, 255, 255, 0.04);
}

.hero-monitor__video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  background: #dfe7f0;
}

.app-frame {
  overflow: hidden;
  border-radius: 0;
  border: none;
  box-shadow: none;
}

.hero__lead,
.section-head p,
.product-card p,
.media-card__header small,
.case-card p,
.install-step p,
.download-panel__copy p,
.footer p {
  color: var(--muted);
  line-height: 1.66;
}

.case-card__body h3,
.footer strong {
  display: block;
  margin-bottom: 10px;
}

.section-head {
  display: grid;
  gap: 8px;
  margin-bottom: 22px;
}

.section-head--wide {
  max-width: 920px;
}

.section-head--compact {
  margin: 12px 0 18px;
}

.section-head--compact h3 {
  font-size: 20px;
}

.section-head--download .eyebrow,
.section-head--download h3 {
  color: #ffffff;
}

.action-section .section-head--compact:not(.section-head--download) {
  margin-top: 6px;
  margin-bottom: 18px;
}

.action-section .section-head--download {
  margin-top: 8px;
  margin-bottom: 16px;
}

.product-grid,
.cases-grid,
.install-grid,
.about-layout,
.value-grid,
.apps-grid,
.demo-layout,
.action-layout {
  display: grid;
  gap: 20px;
}

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

.about-layout {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 26px;
  position: relative;
  isolation: isolate;
}

.value-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 26px;
}

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

.demo-layout {
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
}

.action-layout {
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.75fr);
}

.about-card,
.gallery-card,
.value-card,
.action-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--surface-strong), var(--surface));
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
  transition:
    transform 0.45s ease,
    box-shadow 0.45s ease,
    border-color 0.45s ease,
    opacity 0.7s ease,
    filter 0.7s ease;
}

.about-card,
.value-card,
.action-card {
  padding: 24px;
}

.about-layout .about-card {
  min-height: 0;
}

.about-card h3,
.gallery-card__head span,
.value-card h3,
.action-card h3 {
  margin-bottom: 10px;
  line-height: 1.14;
}

.card-kicker {
  display: inline-flex;
  align-items: center;
  margin-bottom: 14px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(21, 52, 83, 0.07);
  color: #28496e;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.about-gallery-head,
.value-scenarios-head {
  margin-top: 10px;
}

.about-card--flow {
  display: grid;
  align-content: start;
  gap: 10px;
  min-height: 220px;
  padding-top: 30px;
  background:
    radial-gradient(circle at top right, rgba(107, 166, 212, 0.12), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(243, 248, 253, 0.94));
}

.about-card--flow p {
  color: var(--muted);
  line-height: 1.58;
}

.about-card--flow::before {
  content: "";
  position: absolute;
  top: 0;
  left: 24px;
  right: 24px;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(20, 53, 85, 0.92), rgba(107, 166, 212, 0.38));
  opacity: 0.88;
}

.about-card--flow::after {
  content: "";
  position: absolute;
  right: -30px;
  bottom: -30px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(107, 166, 212, 0.16), transparent 68%);
  pointer-events: none;
  animation: drift-glow 8s ease-in-out infinite;
}

.about-card--flow-soft {
  background:
    radial-gradient(circle at top left, rgba(107, 166, 212, 0.12), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(245, 249, 253, 0.95));
}

.about-card--flow-dark {
  background:
    radial-gradient(circle at 80% 18%, rgba(107, 166, 212, 0.16), transparent 24%),
    linear-gradient(135deg, rgba(20, 53, 85, 0.98), rgba(35, 73, 112, 0.94));
  border-color: rgba(20, 53, 85, 0.12);
}

.about-card--flow-dark::before {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.94), rgba(255, 255, 255, 0.28));
}

.about-card--flow-dark h3,
.about-card--flow-dark p,
.about-card--flow-dark .card-kicker {
  color: #ffffff;
}

.about-card--flow-dark .card-kicker {
  background: rgba(255, 255, 255, 0.12);
}

.about-layout::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 8%;
  right: 8%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(37, 77, 117, 0.14), transparent);
  z-index: -1;
  transform: translateY(-50%);
}

.about-layout::after {
  content: "";
  position: absolute;
  top: calc(50% - 4px);
  left: 10%;
  width: 80%;
  height: 8px;
  background:
    radial-gradient(circle, rgba(35, 74, 115, 0.8) 0 3px, transparent 4px) 0 0 / 25% 100% repeat-x;
  opacity: 0.68;
  animation: route-pulse 6s ease-in-out infinite;
  z-index: -1;
}

/* ===== ДЕМО ===== */
.section--demo {
  padding: 40px 0 60px;
}

.demo-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.demo-highlights span {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(20, 53, 85, 0.08);
  color: #163758;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.01em;
  box-shadow: 0 10px 24px rgba(20, 53, 85, 0.06);
}

.demo-video {
  width: 100%;
  border-radius: 26px;
  overflow: hidden;
  background: linear-gradient(135deg, #153453 0%, #234a73 100%);
  border: 1px solid rgba(20, 53, 85, 0.14);
  position: relative;
  box-shadow: 0 28px 60px rgba(20, 53, 85, 0.14);
}

.demo-video::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid rgba(255, 255, 255, 0.08);
  pointer-events: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.demo-video__player {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  visibility: hidden;
  background: #091a2b;
  object-fit: cover;
  filter: none;
  opacity: 1;
  transition: visibility 0s linear 0.2s;
}

.demo-video__player::-webkit-media-controls-panel {
  background: rgba(240, 246, 252, 0.92);
}

.demo-video__cover {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 32px;
  border: 0;
  cursor: pointer;
  color: #ffffff;
  text-align: center;
  background:
    linear-gradient(180deg, rgba(8, 22, 36, 0.58), rgba(8, 22, 36, 0.78)),
    radial-gradient(circle at 50% 35%, rgba(107, 166, 212, 0.16), transparent 28%);
  transition: opacity 0.35s ease, visibility 0.35s ease, transform 0.35s ease;
}

.demo-video.is-playing .demo-video__player {
  visibility: visible;
  transition-delay: 0s;
}

.demo-video.is-playing .demo-video__cover {
  display: none;
}

.demo-video__cover-play {
  position: relative;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(8px);
  box-shadow: 0 22px 46px rgba(8, 23, 39, 0.32);
  transition: transform 0.3s ease, background 0.3s ease;
  animation: pulse-play 2s ease-in-out infinite;
}

@keyframes pulse-play {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.1);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 0 0 20px rgba(255, 255, 255, 0);
  }
}

.demo-video__cover:hover .demo-video__cover-play {
  background: rgba(255, 255, 255, 0.18);
  transform: scale(1.06);
}

.demo-video__cover-play::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-40%, -50%);
  border-top: 14px solid transparent;
  border-bottom: 14px solid transparent;
  border-left: 22px solid #ffffff;
}

.demo-video__cover-copy {
  display: grid;
  gap: 8px;
  max-width: 540px;
}

.demo-video__cover-copy strong {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.demo-video__cover-copy small {
  font-size: 15px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.78);
}

/* ===== АДАПТИВНОСТЬ ===== */
@media (max-width: 1024px) {
  .demo-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  
  .demo-video__player {
    aspect-ratio: 16 / 10;
  }

  .demo-video__cover-copy strong {
    font-size: 24px;
  }
}

@media (max-width: 768px) {
  .section--demo {
    padding: 30px 0 40px;
  }

  .demo-highlights {
    gap: 10px;
  }

  .demo-highlights span {
    min-height: 36px;
    padding: 0 14px;
    font-size: 12px;
  }

  .demo-video__cover {
    padding: 24px;
  }

  .demo-video__cover-play {
    width: 72px;
    height: 72px;
  }

  .demo-video__cover-copy strong {
    font-size: 20px;
  }

  .demo-video__cover-copy small {
    font-size: 14px;
  }
}

.audience-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.audience-tags span {
  display: inline-flex;
  padding: 9px 12px;
  border-radius: 999px;
  background: rgba(21, 52, 83, 0.06);
  color: #24486e;
  font-size: 13px;
  font-weight: 600;
}

.about-note,
.downloads-note {
  color: var(--muted);
  line-height: 1.6;
}

.about-card--detail {
  background:
    radial-gradient(circle at top left, rgba(107, 166, 212, 0.14), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(242, 247, 252, 0.92));
}

.about-card--audience {
  background:
    radial-gradient(circle at top right, rgba(107, 166, 212, 0.12), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(245, 248, 252, 0.94));
}

.about-card--security {
  display: grid;
  gap: 14px;
  padding: 28px;
  background:
    radial-gradient(circle at 85% 20%, rgba(107, 166, 212, 0.14), transparent 24%),
    linear-gradient(135deg, rgba(20, 53, 85, 0.98), rgba(35, 73, 112, 0.94));
}

.about-card--security h3,
.about-card--security p,
.about-card--security .card-kicker {
  color: #ffffff;
}

.about-card--security .card-kicker {
  background: rgba(255, 255, 255, 0.12);
}

.about-card--security .audience-tags span {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
}

.about-card--security .about-note {
  color: rgba(255, 255, 255, 0.82);
  max-width: 900px;
  line-height: 1.52;
}

.about-card--accent {
  background:
    radial-gradient(circle at top right, rgba(107, 166, 212, 0.18), transparent 30%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.97), rgba(242, 247, 252, 0.92));
}

.about-card--accent::after,
.value-card::after,
.action-card--downloads::after {
  content: "";
  position: absolute;
  right: -30px;
  bottom: -40px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(107, 166, 212, 0.16), transparent 68%);
  pointer-events: none;
}

.feature-points {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.feature-points span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(110, 138, 171, 0.16);
  color: #1d4267;
  font-size: 12px;
  font-weight: 700;
}

.gallery-card {
  padding: 20px;
}

.gallery-card__head {
  display: grid;
  gap: 6px;
  margin-bottom: 16px;
}

.gallery-card__head small {
  color: var(--muted);
  line-height: 1.55;
}

.action-buttons {
  display: grid;
  gap: 12px;
  margin: 16px 0 20px;
}

.download-note {
  margin: 0;
  color: #5e748d;
  font-size: 13px;
  line-height: 1.55;
}

.value-card {
  min-height: 240px;
  padding-top: 28px;
}

.app-package-card {
  min-height: 280px;
}

.app-package-card__eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  margin-bottom: 14px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(20, 53, 85, 0.06);
  border: 1px solid rgba(20, 53, 85, 0.1);
  color: #21476d;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.action-section .apps-grid {
  margin-top: 10px;
  padding: 28px;
  border-radius: 30px;
  background:
    radial-gradient(circle at top right, rgba(107, 166, 212, 0.22), transparent 28%),
    linear-gradient(135deg, #143555 0%, #1a4167 62%, #2a5b89 100%);
  box-shadow: 0 24px 60px rgba(16, 37, 62, 0.16);
  position: relative;
  overflow: hidden;
}

.action-section .apps-grid::before {
  content: "";
  position: absolute;
  inset: auto -8% -38% auto;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.12), transparent 62%);
  animation: drift-glow 10s ease-in-out infinite reverse;
  pointer-events: none;
}

.action-section .app-package-card {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(243, 248, 253, 0.94));
  border-color: rgba(255, 255, 255, 0.46);
  box-shadow: 0 18px 42px rgba(10, 27, 45, 0.12);
  display: grid;
  align-content: start;
  gap: 4px;
}

.action-section .app-package-card h3,
.action-section .app-package-card p {
  color: var(--text);
}

.action-section .app-package-card p {
  color: var(--muted);
}

.action-section .app-package-card .feature-points span {
  background: rgba(20, 53, 85, 0.05);
  border-color: rgba(20, 53, 85, 0.1);
  color: #21476d;
}

.action-section .app-package-card .action-buttons {
  padding-top: 12px;
  margin-top: auto;
  margin-bottom: 0;
  gap: 10px;
}

.action-section .app-package-card .button {
  width: 100%;
  justify-content: center;
  min-height: 60px;
  padding: 0 20px;
  border-radius: 18px;
  font-size: 15px;
  font-weight: 800;
  box-shadow: 0 18px 36px rgba(10, 27, 45, 0.16);
  background: linear-gradient(135deg, #19416a 0%, #2d5d8f 100%);
  color: #ffffff;
  border-color: #19416a;
}

.action-section .app-package-card:first-child {
  background:
    radial-gradient(circle at top left, rgba(107, 166, 212, 0.12), transparent 26%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(243, 248, 253, 0.94));
}

.action-section .app-package-card:last-child {
  background:
    radial-gradient(circle at top right, rgba(107, 166, 212, 0.1), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(243, 248, 253, 0.94));
}

.action-section .app-package-card:first-child .button:hover,
.action-section .app-package-card:last-child .button:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(7, 22, 39, 0.24);
}

.action-section .app-package-card:hover,
.about-card:hover,
.value-card:hover,
.action-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 44px rgba(20, 53, 85, 0.12);
}

.install-step {
  position: relative;
  overflow: hidden;
}

.install-step::before {
  content: "";
  position: absolute;
  left: 24px;
  right: 24px;
  top: 0;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--install-accent), var(--install-accent-soft));
}

.install-step::after {
  content: "";
  position: absolute;
  top: -56px;
  right: -32px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--install-accent) 18%, transparent), transparent 68%);
  opacity: 0.8;
  pointer-events: none;
  transform: scale(0.92);
  transition:
    transform 0.55s ease,
    opacity 0.55s ease;
}

.install-step:nth-child(2) {
  --install-accent: #1d4e78;
  --install-accent-soft: rgba(138, 190, 229, 0.3);
}

.install-step:nth-child(3) {
  --install-accent: #285b77;
  --install-accent-soft: rgba(125, 197, 205, 0.3);
}

.install-step:nth-child(4) {
  --install-accent: #21496e;
  --install-accent-soft: rgba(160, 184, 219, 0.3);
}

.install-step:hover {
  transform: translateY(-5px);
  border-color: color-mix(in srgb, var(--install-accent) 22%, white);
  box-shadow: 0 26px 48px rgba(17, 38, 62, 0.13);
}

.install-step:hover::after {
  transform: scale(1.06);
  opacity: 1;
}

.install-step:hover .install-step__media {
  transform: translateY(-2px);
  box-shadow: none;
}

.install-step:hover .install-step__media::before {
  transform: scale(1.06);
  background: rgba(244, 249, 255, 0.18);
  box-shadow:
    0 18px 38px rgba(0, 0, 0, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.28);
}

.install-step:hover .install-step__media::after {
  transform: scale(1.08);
}

.install-step:hover .install-step__video {
  transform: scale(1.012);
  filter: none;
  box-shadow: 0 18px 34px rgba(20, 53, 85, 0.16);
}

@keyframes drift-glow {
  0%, 100% {
    transform: translate3d(0, 0, 0) scale(1);
    opacity: 0.72;
  }
  50% {
    transform: translate3d(-10px, -14px, 0) scale(1.08);
    opacity: 1;
  }
}

@keyframes route-pulse {
  0%, 100% {
    transform: translateX(0);
    opacity: 0.45;
  }
  50% {
    transform: translateX(18px);
    opacity: 0.9;
  }
}

.value-card__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 18px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(20, 53, 85, 0.96), rgba(72, 120, 165, 0.96));
  color: #ffffff;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.product-card {
  padding: 24px;
}

.product-card--accent {
  background: linear-gradient(135deg, rgba(20, 53, 85, 0.98), rgba(35, 73, 112, 0.94));
}

.product-card--accent h3,
.product-card--accent p {
  color: #ffffff;
}

.product-card--accent p {
  color: rgba(255, 255, 255, 0.82);
}

.card-line {
  width: 72px;
  height: 6px;
  margin-bottom: 20px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--brand) 0%, var(--brand-soft) 100%);
}

.product-card--accent .card-line {
  background: linear-gradient(90deg, #ffffff 0%, rgba(255, 255, 255, 0.45) 100%);
}

.media-layout {
  display: grid;
  grid-template-columns: 1.35fr 0.9fr;
  gap: 22px;
}

.media-card {
  padding: 20px;
}

.media-card--main {
  grid-row: span 2;
}

.media-card__header {
  display: grid;
  gap: 6px;
  margin-bottom: 16px;
}

.media-card__header span {
  font-size: 18px;
  font-weight: 700;
}

.media-card img,
.video-placeholder,
.document-preview {
  border-radius: 22px;
}

.video-placeholder {
  background:
    radial-gradient(circle at 30% 40%, rgba(107, 166, 212, 0.15), transparent 50%),
    radial-gradient(circle at 70% 60%, rgba(107, 166, 212, 0.08), transparent 40%);
}

.video-placeholder__play {
  width: 82px;
  height: 82px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.video-placeholder__play::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-40%, -50%);
  border-top: 14px solid transparent;
  border-bottom: 14px solid transparent;
  border-left: 22px solid #ffffff;
}

.video-placeholder p {
  max-width: 220px;
  color: rgba(255, 255, 255, 0.86);
}

.document-preview {
  min-height: 252px;
}

.document-preview {
  padding: 28px;
  background: linear-gradient(180deg, #fbfcfe 0%, #edf2f8 100%);
  border: 1px solid rgba(20, 53, 85, 0.08);
}

.document-preview__line {
  height: 10px;
  margin-bottom: 14px;
  border-radius: 999px;
  background: rgba(20, 53, 85, 0.12);
}

.document-preview__line--wide {
  width: 82%;
}

.document-preview__line--soft {
  width: 66%;
  background: rgba(107, 166, 212, 0.22);
}

.install-grid {
  grid-template-columns: 1fr;
  gap: 18px;
  margin-bottom: 26px;
}

#install::before {
  background:
    radial-gradient(circle at top left, rgba(107, 166, 212, 0.08), transparent 26%),
    radial-gradient(circle at bottom right, rgba(20, 53, 85, 0.08), transparent 28%),
    rgba(255, 255, 255, 0.42);
}

.install-step {
  --install-accent: #153453;
  --install-accent-soft: rgba(107, 166, 212, 0.28);
  padding: 22px;
  min-height: 0;
  display: grid;
  align-content: start;
  gap: 8px;
  background:
    radial-gradient(circle at top right, rgba(107, 166, 212, 0.12), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(240, 246, 252, 0.94));
  border: 1px solid rgba(143, 168, 196, 0.18);
  box-shadow: 0 18px 42px rgba(17, 38, 62, 0.08);
  transition:
    transform 0.45s ease,
    box-shadow 0.45s ease,
    border-color 0.45s ease;
}

.install-step__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 26px;
  align-items: stretch;
}

.install-step__copy {
  display: grid;
  align-content: start;
  gap: 10px;
  padding-right: 6px;
}

.install-step__eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  margin-bottom: 10px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(20, 53, 85, 0.06);
  border: 1px solid color-mix(in srgb, var(--install-accent) 16%, white);
  color: var(--install-accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.install-step h3 {
  max-width: 100%;
  margin-bottom: 4px;
  font-size: 20px;
  line-height: 1.18;
}

.install-step p {
  max-width: 38ch;
  font-size: 15px;
  line-height: 1.5;
}

.install-step__list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  display: grid;
  gap: 10px;
  max-width: 44ch;
}

.install-step__list li {
  line-height: 1.55;
}

.install-step__media {
  position: relative;
  display: grid;
  align-content: start;
  gap: 0;
  padding: 0;
  border-radius: 0;
  background: transparent;
  border: none;
  min-height: 100%;
  overflow: visible;
  transition:
    transform 0.45s ease,
    border-color 0.45s ease,
    box-shadow 0.45s ease;
}

.install-step__media::before {
  content: "";
  position: absolute;
  inset: 50%;
  width: 74px;
  height: 74px;
  margin: -37px 0 0 -37px;
  border-radius: 50%;
  background: rgba(244, 249, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow:
    0 16px 34px rgba(0, 0, 0, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(8px);
  pointer-events: none;
  z-index: 2;
  transition:
    transform 0.45s ease,
    background-color 0.45s ease,
    box-shadow 0.45s ease;
}

.install-step__media::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  margin-left: -6px;
  margin-top: -12px;
  border-top: 12px solid transparent;
  border-bottom: 12px solid transparent;
  border-left: 19px solid rgba(255, 255, 255, 0.94);
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.25));
  pointer-events: none;
  z-index: 3;
  transition: transform 0.45s ease;
}

.install-step__video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: 14px;
  background: transparent;
  object-fit: contain;
  border: 1px solid rgba(205, 216, 229, 0.9);
  box-shadow: 0 16px 30px rgba(20, 53, 85, 0.12);
  filter: none;
  transition:
    transform 0.55s ease,
    box-shadow 0.55s ease,
    filter 0.55s ease;
}

.install-step__media.is-playing::before,
.install-step__media.is-playing::after {
  opacity: 0;
  transform: scale(0.92);
}

.demo-card--steps {
  min-height: 100%;
}

.download-panel {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  padding: 30px;
  background:
    radial-gradient(circle at top right, rgba(184, 148, 95, 0.2), transparent 28%),
    linear-gradient(135deg, rgba(20, 53, 85, 0.98), rgba(35, 73, 112, 0.95));
}

.download-panel .eyebrow,
.download-panel h2,
.download-panel p {
  color: #ffffff;
}

.download-panel__copy {
  max-width: 720px;
}

.download-panel .button--ghost {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.08);
}

.footer {
  padding: 30px;
  border: 1px solid rgba(110, 138, 171, 0.16);
  border-radius: 34px;
  background:
    radial-gradient(circle at top center, rgba(107, 166, 212, 0.1), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(240, 246, 252, 0.94));
  box-shadow: var(--shadow-soft);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  text-align: center;
}

.footer__logo-wrap {
  width:74px;
  height: 74px;
  border-radius: 22px;
  overflow: hidden;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(234, 240, 248, 0.9));
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: var(--shadow-soft);
}

.footer__logo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.footer strong {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-transform: none;
  color: var(--text);
}

.footer p {
  color: var(--muted);
}

.footer__brand > div:last-child {
  display: grid;
  gap: 8px;
  justify-items: center;
}

.footer__mail {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, #143555 0%, #234a73 100%);
  border: 1px solid #143555;
  color: #ffffff;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 12px 26px rgba(20, 53, 85, 0.18);
}

.button,
.footer__mail,
.topbar__action,
.nav a {
  transition:
    transform 0.35s ease,
    box-shadow 0.35s ease,
    background-color 0.35s ease,
    color 0.35s ease,
    border-color 0.35s ease,
    opacity 0.35s ease;
}

.button:hover,
.footer__mail:hover,
.topbar__action:hover {
  transform: translateY(-2px);
}

.reveal {
  opacity: 0;
  transform: translateY(26px);
  filter: blur(6px);
}

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

.reveal-delay-1 {
  transition-delay: 0.08s;
}

.reveal-delay-2 {
  transition-delay: 0.16s;
}

.reveal-delay-3 {
  transition-delay: 0.24s;
}

.about-section,
.demo-section,
.action-section {
  position: relative;
}

.about-section::before,
.demo-section::before,
.action-section::before {
  content: "";
  position: absolute;
  inset: 24px 0 0;
  width: min(var(--container), 100%);
  margin: 0 auto;
  border-radius: 36px;
  background: rgba(255, 255, 255, 0.38);
  border: 1px solid rgba(255, 255, 255, 0.42);
  z-index: -1;
}

@media (max-width: 1200px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero__actions {
    flex-wrap: wrap;
  }

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

  .about-layout,
  .value-grid,
  .apps-grid,
  .demo-layout,
  .action-layout,
  .product-grid,
  .install-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about-layout::before,
  .about-layout::after {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .button,
  .footer__mail,
  .topbar__action,
  .nav a,
  .benefits-strip__item,
  .benefits-strip__icon,
  .about-card,
  .gallery-card,
  .value-card,
  .action-card {
    transition: none !important;
    transform: none !important;
    filter: none !important;
  }

  .about-card--flow::after,
  .action-section .apps-grid::before,
  .about-layout::after,
  .demo-video__cover-play,
  #install .install-step {
    animation: none !important;
  }

  .install-step,
  .install-step::after,
  .install-step__media,
  .install-step__video {
    transition: none !important;
  }
}

@media (max-width: 900px) {
  .page-shell {
    padding: 18px;
  }

  .hero__actions {
    flex-direction: column;
    width: 100%;
  }

  .topbar,
  .download-panel {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav {
    justify-content: flex-start;
  }

  .about-layout,
  .value-grid,
  .apps-grid,
  .demo-layout,
  .action-layout {
    grid-template-columns: 1fr;
  }

  .footer__brand {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 1000px) {
  .brand__mark {
    width: 100px;
    height: 100px;
  }

  .benefits-strip {
    grid-template-columns: 1fr;
  }

  .benefits-strip__item {
    border-right: none;
    border-bottom: 1px solid rgba(110, 138, 171, 0.12);
  }

  .benefits-strip__item:last-child {
    border-bottom: none;
  }

  .hero__summary,
  .about-layout,
  .value-grid,
  .apps-grid,
  .demo-layout,
  .action-layout,
  .product-grid,
  .install-grid {
    grid-template-columns: 1fr;
  }

  .hero__panel-head,
  .footer__brand {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero__watermark {
    width: 140px;
    top: -14px;
    right: 0;
  }

  .summary-card,
  .product-card,
  .media-card,
  .case-card,
  .install-step,
  .download-panel,
  .hero__panel,
  .app-frame {
    border-radius: 22px;
  }

  .about-section::before,
  .demo-section::before,
  .action-section::before {
    inset: 14px 0 0;
    border-radius: 28px;
  }
}

/* Final responsive layer */
@media (max-width: 1200px) {
  .page-shell {
    padding: 16px 18px 24px;
  }

  .topbar {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 8px 0 14px;
  }

  .brand {
    justify-content: center;
  }

  .nav {
    width: 100%;
    justify-content: center;
    gap: 24px;
    padding: 10px 22px;
    margin-left: 0;
  }

  .topbar > .button {
    justify-self: center;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 28px;
    margin-top: 18px;
    padding-bottom: 20px;
  }

  .hero__copy {
    max-width: 760px;
  }

  .hero__actions {
    width: min(100%, 620px);
    flex-wrap: wrap;
  }

  .hero__visual {
    display: flex;
    justify-content: center;
  }

  .hero-monitor {
    width: min(100%, 760px);
    padding-top: 0;
  }

  .hero-monitor__screen {
    width: 100%;
    max-width: 100%;
    height: auto;
    aspect-ratio: 740 / 405;
    max-height: none;
  }

  .benefits-strip,
  .about-layout,
  .value-grid,
  .apps-grid,
  .demo-layout,
  .action-layout,
  .product-grid,
  .install-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  [id] {
    scroll-margin-top: 104px;
  }

  .page-shell {
    padding: 14px 14px 20px;
  }

  .brand__mark {
    width: 56px;
    height: 56px;
  }

  .brand__name {
    font-size: 16px;
  }

  .brand__subtitle {
    font-size: 8px;
  }

  .nav {
    gap: 14px 18px;
    padding: 10px 14px;
    border-radius: 24px;
  }

  .nav a {
    font-size: 12px;
  }

  .hero {
    gap: 22px;
    margin-top: 12px;
    padding: 0 0 14px;
  }

  .hero__copy {
    gap: 14px;
  }

  .hero__copy h1 {
    padding-top: 0;
  }

  h1 {
    font-size: clamp(34px, 9vw, 56px);
    line-height: 0.96;
  }

  .lead {
    max-width: 100%;
    font-size: 16px;
    line-height: 1.65;
    padding-top: 0;
    margin-bottom: 0;
  }

  .hero__actions {
    width: 100%;
    max-width: 100%;
    flex-direction: column;
    gap: 12px;
  }

  .hero__actions .button {
    width: 100%;
    min-height: 64px;
  }

  .hero__subactions {
    max-width: 100%;
    margin-top: 6px;
  }

  .hero__note {
    max-width: 100%;
    font-size: 12px;
    line-height: 1.5;
  }

  .hero-monitor {
    transform: none;
  }

  .benefits-strip,
  .about-layout,
  .value-grid,
  .apps-grid,
  .demo-layout,
  .action-layout,
  .product-grid,
  .install-grid {
    grid-template-columns: 1fr;
  }

  .benefits-strip {
    margin-top: 28px;
  }

  .benefits-strip__item {
    grid-template-columns: 58px minmax(0, 1fr);
    gap: 14px;
    padding: 18px 18px 16px;
    border-right: none;
    border-bottom: 1px solid rgba(110, 138, 171, 0.12);
  }

  .benefits-strip__item:last-child {
    border-bottom: none;
  }

  .benefits-strip__icon {
    width: 50px;
    height: 50px;
  }

  .benefits-strip__icon svg {
    width: 22px;
    height: 22px;
  }

  .benefits-strip__text strong {
    font-size: 16px;
  }

  .benefits-strip__text span {
    font-size: 12px;
  }

  .section {
    padding: 40px 0;
  }

  .section-head {
    margin-bottom: 18px;
  }

  .about-card,
  .gallery-card,
  .value-card,
  .action-card,
  .product-card,
  .media-card,
  .case-card,
  .install-step,
  .download-panel,
  .footer {
    padding: 20px;
  }

  .demo-video__cover {
    padding: 20px;
  }

  .install-step__layout {
    grid-template-columns: 1fr;
  }

  .demo-video__cover-copy strong {
    font-size: 24px;
  }

  .demo-video__cover-copy small {
    font-size: 13px;
  }

  .footer__brand {
    align-items: center;
    text-align: center;
  }

  .footer__brand > div:last-child {
    justify-items: center;
  }
}

@media (max-width: 640px) {
  .page-shell {
    padding: 12px 12px 18px;
  }

  .topbar {
    gap: 12px;
    padding-bottom: 10px;
  }

  .brand {
    gap: 10px;
  }

  .brand__info {
    max-width: 170px;
  }

  .brand__name {
    font-size: 14px;
  }

  .brand__subtitle {
    font-size: 7px;
    line-height: 1.15;
  }

  .nav {
    gap: 10px 14px;
    padding: 8px 12px;
  }

  .nav a {
    font-size: 11px;
  }

  h1 {
    font-size: clamp(30px, 10vw, 44px);
  }

  .lead {
    font-size: 15px;
  }

  .button {
    min-height: 48px;
    padding: 10px 16px;
  }

  .hero__actions .button {
    min-height: 58px;
    padding: 10px 16px;
  }

  .button__label {
    font-size: 15px;
  }

  .button__meta {
    font-size: 10px;
  }

  .hero-monitor__screen {
    border-radius: 12px;
  }

  .benefits-strip {
    border-radius: 24px;
  }

  .benefits-strip__item {
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 12px;
    padding: 16px 14px;
  }

  .benefits-strip__icon {
    width: 42px;
    height: 42px;
  }

  .benefits-strip__text {
    gap: 5px;
  }

  .section {
    padding: 34px 0;
  }

  .about-section::before,
  .demo-section::before,
  .action-section::before {
    inset: 10px 0 0;
    border-radius: 22px;
  }

  .install-step h3,
  h3 {
    font-size: 20px;
  }

  .install-step__list {
    gap: 8px;
    padding-left: 16px;
  }

  .footer {
    padding: 18px;
  }
}

@media (max-width: 480px) {
  [id] {
    scroll-margin-top: 96px;
  }

  .brand__info {
    display: none;
  }

  .nav {
    justify-content: flex-start;
  }

  .topbar > .button {
    width: 100%;
  }

  .hero {
    gap: 18px;
  }

  .lead {
    font-size: 14px;
    line-height: 1.55;
  }

  .hero__note {
    font-size: 11px;
  }

  .benefits-strip {
    margin-top: 22px;
  }

  .benefits-strip__text strong {
    font-size: 15px;
  }

  .benefits-strip__text span {
    font-size: 11px;
  }

  .demo-video__cover-copy strong {
    font-size: 20px;
  }
}