:root {
  --bg: #06101d;
  --bg-soft: #0b1830;
  --surface: rgba(11, 21, 40, 0.62);
  --surface-strong: rgba(15, 30, 58, 0.92);
  --border: rgba(166, 215, 255, 0.2);
  --text: #eff8ff;
  --muted: #9eb8d2;
  --primary: #79d3ff;
  --primary-strong: #29a8ff;
  --accent: #c3efff;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.32);
  --max-width: 1200px;
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --font-base: "SF Pro Display", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.1) transparent;
  background-color: #08111f;
  color-scheme: dark;
}

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--text);
  background-color: #08111f;
  background:
    radial-gradient(circle at 18% -8%, rgba(35, 116, 255, 0.22), transparent 30%),
    radial-gradient(circle at 80% 10%, rgba(96, 209, 255, 0.18), transparent 26%),
    linear-gradient(180deg, #091528 0%, #08111f 65%, #040a12 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

html::-webkit-scrollbar {
  width: 8px;
}

html::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.01);
}

html::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  min-height: 56px;
  border: 2px solid transparent;
  background-clip: padding-box;
}

html::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.14);
  border: 2px solid transparent;
  background-clip: padding-box;
}

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

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

p,
li,
summary {
  line-height: 1.65;
}

.page-shell {
  position: relative;
  isolation: isolate;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 60;
  width: 100%;
  height: 3px;
  transform-origin: left center;
  transform: scaleX(0);
  opacity: 0.58;
  background: linear-gradient(90deg, rgba(38, 134, 224, 0.72), rgba(73, 180, 255, 0.78), rgba(182, 245, 255, 0.86));
  box-shadow: 0 0 14px rgba(45, 157, 255, 0.28);
  transition:
    opacity 0.24s ease,
    height 0.24s ease;
}

.ambient {
  position: fixed;
  z-index: -1;
  filter: blur(60px);
  border-radius: 999px;
  opacity: 0.45;
  pointer-events: none;
}

.ambient-one {
  width: 360px;
  height: 360px;
  top: calc(3% - 90px);
  left: -6%;
  background: rgba(54, 163, 255, 0.25);
}

.ambient-two {
  width: 320px;
  height: 320px;
  top: 35%;
  right: -6%;
  background: rgba(90, 225, 255, 0.16);
}

.ambient-three {
  width: 420px;
  height: 420px;
  bottom: 0;
  left: 30%;
  background: rgba(34, 125, 224, 0.2);
}

.site-header {
  position: sticky;
  top: 18px;
  z-index: 40;
  width: min(var(--max-width), calc(100% - clamp(20px, 2.4vw, 32px)));
  margin: 0 auto;
  padding: 18px 28px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 30px;
  backdrop-filter: blur(20px);
  background: rgba(6, 13, 24, 0.5);
  border: 1px solid rgba(170, 215, 255, 0.12);
  border-radius: 999px;
  box-shadow: var(--shadow);
  transition:
    top 0.24s ease,
    padding 0.24s ease,
    background 0.24s ease,
    border-color 0.24s ease,
    box-shadow 0.24s ease;
}

.site-header.is-scrolled {
  top: 22px;
  padding: 16px 24px;
  background: rgba(6, 13, 24, 0.68);
  border-color: rgba(170, 215, 255, 0.16);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.32);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  justify-self: start;
}

.brand span {
  font-size: clamp(1.08rem, 0.96rem + 0.4vw, 1.34rem);
}

.brand img {
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(41, 168, 255, 0.28);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  justify-self: center;
  gap: clamp(8px, 1vw, 14px);
  color: var(--muted);
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 clamp(12px, 1.1vw, 18px);
  border-radius: 999px;
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition:
    color 0.25s ease,
    background 0.25s ease,
    border-color 0.25s ease,
    transform 0.25s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  transform: translateY(-1px);
}

.site-nav-mobile-actions {
  display: none;
}

.site-header > .button-small,
.site-header > .header-telegram {
  display: none;
}

.header-actions {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.header-telegram {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  border-radius: 999px;
  color: #dff7ff;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(188, 227, 255, 0.18);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    0 14px 30px rgba(16, 90, 158, 0.2);
  transition:
    transform 0.25s ease,
    background 0.25s ease,
    border-color 0.25s ease,
    box-shadow 0.25s ease;
}

.header-telegram svg {
  width: 20px;
  height: 20px;
}

.header-telegram:hover,
.header-telegram:focus-visible {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(126, 223, 255, 0.34);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 18px 36px rgba(30, 124, 214, 0.24);
}

.header-telegram img {
  width: 20px;
  height: 20px;
  object-fit: contain;
}

.header-burger {
  display: none;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid rgba(188, 227, 255, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    0 14px 30px rgba(16, 90, 158, 0.2);
  cursor: pointer;
  transition:
    transform 0.25s ease,
    background 0.25s ease,
    border-color 0.25s ease,
    box-shadow 0.25s ease;
}

.header-burger:hover,
.header-burger:focus-visible {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(126, 223, 255, 0.34);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 18px 36px rgba(30, 124, 214, 0.24);
}

.header-burger span {
  position: absolute;
  width: 16px;
  height: 2px;
  border-radius: 999px;
  background: #dff7ff;
  box-shadow: 0 0 10px rgba(125, 211, 255, 0.18);
  transition:
    transform 0.24s ease,
    opacity 0.24s ease;
}

.header-burger span:nth-child(1) {
  transform: translateY(-5px);
}

.header-burger span:nth-child(3) {
  transform: translateY(5px);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 clamp(18px, 1.8vw, 24px);
  border-radius: 999px;
  background: linear-gradient(135deg, #2796ff, #7ed7ff);
  color: #03101d;
  font-weight: 700;
  font-size: 1.02rem;
  box-shadow: 0 16px 40px rgba(41, 168, 255, 0.35);
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease,
    opacity 0.25s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 22px 46px rgba(41, 168, 255, 0.42);
}

.button-small {
  min-height: 44px;
  padding: 0 18px;
  font-size: 1rem;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  border: 1px solid rgba(188, 227, 255, 0.14);
  box-shadow: none;
}

.section {
  width: min(var(--max-width), calc(100% - clamp(20px, 2.4vw, 32px)));
  margin: 0 auto;
}

.section-hero {
  position: relative;
  min-height: calc(93vh - 110px);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  padding: 64px 0 48px;
}

.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: -22px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  opacity: 0.46;
  transform: translateX(-50%);
  transition:
    opacity 0.35s ease,
    transform 0.35s ease;
  animation: scrollHintFloat 2.6s ease-in-out infinite;
}

.scroll-hint.hidden {
  opacity: 0;
  transform: translateX(-50%) translateY(8px);
  pointer-events: none;
}

.scroll-hint-chevron {
  width: 16px;
  height: 16px;
  border-right: 2px solid rgba(239, 248, 255, 0.88);
  border-bottom: 2px solid rgba(239, 248, 255, 0.88);
  transform: rotate(45deg);
  filter: drop-shadow(0 0 10px rgba(125, 211, 255, 0.18));
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.76rem;
  font-weight: 700;
}

.hero h1,
.section-heading h2,
.showcase-copy h2,
.download-card h2 {
  margin: 0;
  font-size: clamp(2.8rem, 5vw, 5.5rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
}

.section-heading h2,
.showcase-copy h2,
.download-card h2 {
  font-size: clamp(2.2rem, 4vw, 4rem);
}

.price-heading {
  white-space: nowrap;
  font-size: clamp(1.95rem, 3.2vw, 3.35rem) !important;
}

.price-heading span {
  color: #62e58a;
  font-size: 1.14em;
  font-weight: 800;
  text-shadow: 0 0 22px rgba(98, 229, 138, 0.22);
}

.hero-text,
.section-heading p,
.showcase-copy p,
.download-card p,
.content-card p,
.glass-panel p,
.faq p {
  color: var(--muted);
}

.features-intro {
  margin-bottom: 40px;
}

.hero-text {
  max-width: 640px;
  margin: 24px 0 0;
  font-size: 1.1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.hero-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  list-style: none;
  padding: 0;
  margin: 34px 0 0;
}

.hero-points li,
.trust-item,
.feature-card,
.content-card,
.glass-panel,
.download-card,
.faq-list details {
  backdrop-filter: blur(20px);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.hero-points li {
  padding: 16px 18px;
  border-radius: var(--radius-md);
  color: var(--accent);
}

.hero-visual {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.device-stage {
  position: relative;
  width: min(100%, 520px);
  aspect-ratio: 1 / 1;
  transform-style: preserve-3d;
  transition: transform 0.24s ease-out;
}

.signal-beam {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 2px;
  height: 46%;
  transform-origin: bottom center;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0), rgba(130, 224, 255, 0.8), rgba(0, 0, 0, 0));
  opacity: 0.5;
  filter: blur(0.4px);
}

.signal-beam-one {
  transform: translate(-50%, -88%) rotate(-28deg);
  animation: shimmer 6.4s linear infinite;
}

.signal-beam-two {
  transform: translate(-50%, -90%) rotate(0deg);
  animation: shimmer 5.5s linear infinite reverse;
}

.signal-beam-three {
  transform: translate(-50%, -88%) rotate(28deg);
  animation: shimmer 6.8s linear infinite;
}

.glow-ring {
  position: absolute;
  inset: 50%;
  border-radius: 999px;
  border: 1px solid rgba(166, 220, 255, 0.18);
  transform: translate(-50%, -50%);
}

.glow-ring-large {
  width: min(100%, 520px);
  aspect-ratio: 1 / 1;
  height: auto;
  background: radial-gradient(circle, rgba(76, 196, 255, 0.16), transparent 58%);
  animation: pulse 6s ease-in-out infinite;
}

.glow-ring-small {
  width: min(72%, 374px);
  aspect-ratio: 1 / 1;
  height: auto;
  background: radial-gradient(circle, rgba(112, 226, 255, 0.16), transparent 58%);
  animation: pulse 6s ease-in-out infinite reverse;
}

.device-card {
  position: absolute;
  inset: 11%;
  padding: 18px;
  border-radius: 42px;
  background: linear-gradient(135deg, rgba(23, 49, 95, 0.38), rgba(203, 243, 255, 0.12));
  border: 1px solid rgba(198, 234, 255, 0.18);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.26),
    0 60px 120px rgba(0, 0, 0, 0.4);
  transform: perspective(1200px) rotateX(12deg) rotateY(-12deg);
}

.device-screen {
  width: 100%;
  height: 100%;
  border-radius: 28px;
  background:
    radial-gradient(circle at top, rgba(102, 209, 255, 0.2), transparent 26%),
    linear-gradient(135deg, rgba(5, 12, 25, 0.96), rgba(14, 31, 58, 0.95));
  display: grid;
  place-items: center;
  padding: 22px;
}

.status-row,
.speed-badge {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--accent);
  font-size: 0.92rem;
}

.hero-logo {
  filter: drop-shadow(0 20px 34px rgba(41, 168, 255, 0.35));
  animation: float 7s ease-in-out infinite;
}

.speed-badge {
  align-self: end;
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 18px;
  border: 1px solid rgba(166, 220, 255, 0.12);
}

.speed-badge strong {
  font-size: 1.4rem;
}

.floating-card {
  position: absolute;
  padding: 14px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(180, 229, 255, 0.18);
  color: var(--accent);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.floating-card-left {
  left: -7%;
  top: calc(20% + 30px);
  animation: drift 8s ease-in-out infinite;
}

.floating-card-right {
  right: -2%;
  bottom: 24%;
  animation: drift 9s ease-in-out infinite reverse;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  padding: 18px 0 6px;
}

.trust-item {
  padding: 24px;
  border-radius: var(--radius-lg);
}

.trust-item strong {
  display: block;
  font-size: 2rem;
  letter-spacing: -0.04em;
}

.trust-item span {
  color: var(--muted);
}

.features,
.showcase,
.about-content,
.download,
.faq {
  padding: 110px 0 0;
}

.section-heading {
  max-width: 780px;
}

.content-columns,
.about-stack {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 34px;
}

.about-stack {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.content-card {
  position: relative;
  overflow: hidden;
  min-height: 420px;
  padding: 34px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  border-radius: var(--radius-lg);
  transform-style: preserve-3d;
  transition:
    transform 0.22s ease,
    border-color 0.22s ease,
    background 0.22s ease;
}

.content-card-tech {
  background:
    radial-gradient(circle at top left, rgba(119, 226, 255, 0.14), transparent 34%),
    linear-gradient(135deg, rgba(8, 17, 31, 0.92), rgba(13, 25, 46, 0.8));
  border: 2px solid rgba(102, 183, 255, 0.9);
  box-shadow:
    inset 0 0 0 1px rgba(160, 241, 255, 0.1),
    0 0 0 1px rgba(132, 126, 255, 0.16),
    0 24px 60px rgba(99, 100, 236, 0.24);
}

.content-card-tech .content-card-media {
  border: none;
  background: transparent;
  box-shadow: none;
  display: grid;
  place-items: center;
  height: 240px;
  margin-bottom: 30px;
  padding: 0;
}

.content-card-tech .content-card-media img {
  width: auto;
  height: auto;
  max-width: 66%;
  max-height: 92%;
  object-fit: contain;
  object-position: center center;
}

.content-card-devices {
  background:
    radial-gradient(circle at bottom right, rgba(167, 223, 255, 0.14), transparent 36%),
    linear-gradient(135deg, rgba(9, 18, 34, 0.94), rgba(16, 24, 42, 0.82));
  border: 2px solid rgba(102, 183, 255, 0.9);
  box-shadow:
    inset 0 0 0 1px rgba(194, 229, 255, 0.1),
    0 0 0 1px rgba(102, 183, 255, 0.16),
    0 24px 60px rgba(64, 151, 255, 0.2);
}

.content-card-devices .content-card-media {
  border: none;
  background: transparent;
  box-shadow: none;
  display: grid;
  place-items: center;
  height: 240px;
  margin-bottom: 30px;
  padding: 0;
}

.content-card-devices .content-card-media img {
  width: auto;
  height: auto;
  max-width: 58%;
  max-height: 82%;
  object-fit: contain;
  object-position: center center;
}

.content-card-network {
  background:
    radial-gradient(circle at top right, rgba(84, 174, 255, 0.14), transparent 34%),
    linear-gradient(135deg, rgba(8, 17, 31, 0.94), rgba(10, 22, 44, 0.82));
  border: 2px solid rgba(72, 221, 255, 0.9);
  box-shadow:
    inset 0 0 0 1px rgba(210, 208, 255, 0.09),
    0 0 0 1px rgba(72, 221, 255, 0.18),
    0 24px 60px rgba(43, 178, 255, 0.22);
}

.content-card-network .content-card-media {
  border: none;
  background: transparent;
  box-shadow: none;
  display: grid;
  place-items: center;
  height: 240px;
  margin-bottom: 30px;
  padding: 0;
}

.content-card-network .content-card-media img {
  width: auto;
  height: auto;
  max-width: 58%;
  max-height: 82%;
  object-fit: contain;
  object-position: center center;
}

.content-card-media {
  width: 100%;
  height: 190px;
  margin-bottom: 24px;
  border-radius: 24px;
  overflow: hidden;
  display: block;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
    repeating-linear-gradient(
      135deg,
      rgba(125, 211, 255, 0.08) 0,
      rgba(125, 211, 255, 0.08) 12px,
      rgba(255, 255, 255, 0.02) 12px,
      rgba(255, 255, 255, 0.02) 24px
    );
  border: 1px dashed rgba(186, 231, 255, 0.18);
}

.content-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.content-card::before,
.glass-panel::before,
.download-card::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.16));
  opacity: 0;
  transition: opacity 0.24s ease;
  pointer-events: none;
}

.content-card:hover::before,
.glass-panel:hover::before,
.download-card:hover::before {
  opacity: 1;
}

.feature-drum {
  position: relative;
  overflow: visible;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 34px;
  min-height: 720px;
  padding: 16px 0;
}

.feature-drum::before,
.feature-drum::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  z-index: 2;
  height: 210px;
  pointer-events: none;
}

.feature-drum::before {
  top: -92px;
  background: linear-gradient(180deg, rgba(8, 17, 31, 0) 0%, rgba(8, 17, 31, 0.22) 24%, rgba(8, 17, 31, 0.74) 52%, rgba(8, 17, 31, 0.2) 82%, rgba(8, 17, 31, 0) 100%);
}

.feature-drum::after {
  bottom: -92px;
  background: linear-gradient(0deg, rgba(8, 17, 31, 0) 0%, rgba(8, 17, 31, 0.22) 24%, rgba(8, 17, 31, 0.74) 52%, rgba(8, 17, 31, 0.2) 82%, rgba(8, 17, 31, 0) 100%);
}

.feature-lane {
  position: relative;
  overflow: hidden;
  height: 720px;
  mask-image: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.55) 4%, #000 10%, #000 90%, rgba(0, 0, 0, 0.55) 96%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.55) 4%, #000 10%, #000 90%, rgba(0, 0, 0, 0.55) 96%, transparent 100%);
}

.feature-track {
  display: flex;
  flex-direction: column;
  gap: 18px;
  animation: feature-drum-scroll 34s linear infinite;
  will-change: transform;
}

.feature-lane-reverse .feature-track {
  animation-direction: reverse;
  animation-duration: 38s;
}

.feature-drum-card {
  position: relative;
  overflow: hidden;
  min-height: 150px;
  padding: 22px;
  border-radius: 24px;
  backdrop-filter: blur(20px);
  background: linear-gradient(135deg, rgba(9, 18, 34, 0.94), rgba(11, 21, 40, 0.84));
  border: 1px solid rgba(166, 215, 255, 0.16);
  box-shadow: none;
  transform-style: preserve-3d;
  transition:
    transform 0.22s ease,
    border-color 0.22s ease,
    background 0.22s ease;
}

.feature-drum-card::after {
  content: "";
  position: absolute;
  inset: auto auto 0 0;
  width: 100%;
  height: 3px;
  opacity: 0.85;
  background-repeat: no-repeat;
  background-size: 100% 100%;
  pointer-events: none;
}

.feature-drum-card::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.16));
  opacity: 0;
  transition: opacity 0.24s ease;
  pointer-events: none;
}

.feature-drum-card:hover::before {
  opacity: 1;
}

.feature-drum-card:nth-child(4n + 1) {
  background: linear-gradient(135deg, rgba(8, 18, 36, 0.95), rgba(10, 22, 44, 0.86));
  border-color: rgba(106, 232, 255, 0.28);
  box-shadow: inset 0 0 0 1px rgba(204, 245, 255, 0.08);
}

.feature-drum-card:nth-child(4n + 1)::after {
  background: linear-gradient(90deg, rgba(88, 238, 255, 1), rgba(88, 238, 255, 0));
}

.feature-drum-card:nth-child(4n + 1) .feature-drum-icon {
  background: rgba(64, 228, 255, 0.18);
  border-color: rgba(153, 241, 255, 0.32);
  box-shadow: 0 12px 28px rgba(28, 206, 255, 0.22);
}

.feature-drum-card:nth-child(4n + 2) {
  background: linear-gradient(135deg, rgba(10, 18, 38, 0.95), rgba(14, 22, 46, 0.86));
  border-color: rgba(134, 164, 255, 0.28);
  box-shadow: inset 0 0 0 1px rgba(214, 224, 255, 0.08);
}

.feature-drum-card:nth-child(4n + 2)::after {
  background: linear-gradient(90deg, rgba(122, 141, 255, 1), rgba(122, 141, 255, 0));
}

.feature-drum-card:nth-child(4n + 2) .feature-drum-icon {
  background: rgba(94, 122, 255, 0.18);
  border-color: rgba(176, 193, 255, 0.32);
  box-shadow: 0 12px 28px rgba(88, 105, 255, 0.2);
}

.feature-drum-card:nth-child(4n + 3) {
  background: linear-gradient(135deg, rgba(8, 18, 34, 0.95), rgba(10, 26, 36, 0.86));
  border-color: rgba(110, 241, 191, 0.26);
  box-shadow: inset 0 0 0 1px rgba(203, 252, 225, 0.08);
}

.feature-drum-card:nth-child(4n + 3)::after {
  background: linear-gradient(90deg, rgba(92, 242, 188, 0.96), rgba(92, 242, 188, 0));
}

.feature-drum-card:nth-child(4n + 3) .feature-drum-icon {
  background: rgba(52, 236, 176, 0.16);
  border-color: rgba(152, 246, 210, 0.3);
  box-shadow: 0 12px 28px rgba(38, 211, 151, 0.18);
}

.feature-drum-card:nth-child(4n + 4) {
  background: linear-gradient(135deg, rgba(12, 18, 34, 0.95), rgba(18, 20, 40, 0.86));
  border-color: rgba(255, 191, 145, 0.22);
  box-shadow: inset 0 0 0 1px rgba(255, 224, 198, 0.07);
}

.feature-drum-card:nth-child(4n + 4)::after {
  background: linear-gradient(90deg, rgba(255, 174, 116, 0.96), rgba(255, 174, 116, 0));
}

.feature-drum-card:nth-child(4n + 4) .feature-drum-icon {
  background: rgba(255, 179, 112, 0.14);
  border-color: rgba(255, 213, 176, 0.28);
  box-shadow: 0 12px 28px rgba(255, 124, 116, 0.16);
}

.feature-drum-icon {
  display: inline-grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-bottom: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(186, 231, 255, 0.12);
  font-size: 1.35rem;
}

.feature-drum-card h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
  line-height: 1.18;
}

.feature-drum-card p {
  margin: 0;
  color: var(--muted);
}

.feature-drum-card h3,
.content-card h3,
.glass-panel h3 {
  margin: 0 0 12px;
  font-size: 1.45rem;
}

.showcase {
  display: block;
}

.about-content .section-heading h2 {
  line-height: 1.14;
}

.about-brand-highlight {
  display: inline-block;
  padding: 0.04em 0.08em 0.08em;
  color: #dff7ff;
  background: linear-gradient(135deg, #5d9ee7 0%, #5addff 52%, #10d3ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow:
    0 0 12px rgba(16, 211, 255, 0.18),
    0 0 24px rgba(16, 211, 255, 0.22),
    0 0 34px rgba(90, 221, 255, 0.12);
  filter: drop-shadow(0 0 10px rgba(16, 211, 255, 0.14));
}

.showcase-heading {
  max-width: 760px;
}

.security-stage {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 34px;
  padding: 34px;
  border-radius: 34px;
  backdrop-filter: blur(20px);
  background:
    radial-gradient(circle at top left, rgba(120, 221, 255, 0.16), transparent 34%),
    linear-gradient(135deg, rgba(9, 18, 34, 0.94), rgba(11, 21, 40, 0.82));
  border: 1px solid rgba(166, 215, 255, 0.16);
  box-shadow: var(--shadow);
  transform-style: preserve-3d;
  transition:
    transform 0.22s ease,
    border-color 0.22s ease,
    background 0.22s ease;
}

.security-stage:hover {
  transform: translateY(-4px);
}

.security-stage::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.16));
  opacity: 0;
  transition: opacity 0.24s ease;
  pointer-events: none;
}

.security-stage:hover::before {
  opacity: 1;
}

.security-stage-copy {
  position: relative;
  z-index: 1;
  align-self: center;
}

.security-stage-visual {
  position: relative;
  min-height: 320px;
  display: grid;
  place-items: center;
  padding-left: 12px;
}

.security-stage-image-frame {
  position: relative;
  z-index: 1;
  width: min(100%, 420px);
  margin: 0;
  display: grid;
  place-items: center;
}

.security-stage-image {
  display: block;
  width: auto;
  height: auto;
  max-width: 64%;
  max-height: 270px;
  object-fit: contain;
}

.security-beam {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 2px;
  height: 46%;
  transform-origin: bottom center;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0), rgba(130, 224, 255, 0.82), rgba(0, 0, 0, 0));
  opacity: 0.45;
}

.security-beam-one {
  transform: translate(-50%, -88%) rotate(-24deg);
}

.security-beam-two {
  transform: translate(-50%, -88%) rotate(24deg);
}

.security-core-ring {
  position: absolute;
  inset: 50%;
  border-radius: 999px;
  border: 1px solid rgba(166, 220, 255, 0.16);
  transform: translate(-50%, -50%);
}

.security-core-ring-large {
  width: 290px;
  height: 290px;
}

.security-core-ring-small {
  width: 200px;
  height: 200px;
}

.security-core-shell,
.security-core-shell-inner {
  clip-path: polygon(50% 0%, 88% 20%, 88% 56%, 50% 100%, 12% 56%, 12% 20%);
}

.security-core-shell {
  position: relative;
  width: 170px;
  height: 190px;
  display: grid;
  place-items: center;
  background: linear-gradient(180deg, rgba(196, 243, 255, 0.22), rgba(44, 143, 255, 0.08));
  border: 1px solid rgba(186, 231, 255, 0.18);
  box-shadow: 0 24px 70px rgba(41, 168, 255, 0.2);
}

.security-core-shell-inner {
  width: 92px;
  height: 116px;
  background: linear-gradient(180deg, rgba(213, 247, 255, 0.9), rgba(70, 188, 255, 0.28));
}

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

.glass-panel {
  position: relative;
  padding: 26px;
  border-radius: var(--radius-xl);
  transform-style: preserve-3d;
  transition:
    transform 0.22s ease,
    border-color 0.22s ease,
    background 0.22s ease;
}

.security-column {
  min-height: 220px;
}

.security-column:hover {
  transform: translateY(-4px);
}

.panel-kicker {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.76rem;
}

.download {
  padding-bottom: 8px;
}

.download-card {
  position: relative;
  padding: 44px;
  border-radius: 36px;
  text-align: center;
  transform-style: preserve-3d;
  transition:
    transform 0.22s ease,
    border-color 0.22s ease,
    background 0.22s ease;
}

.download-card p {
  max-width: 760px;
  margin: 18px auto 0;
}

.download-card .hero-actions {
  justify-content: center;
}

.faq {
  padding-bottom: 80px;
}

.faq-list {
  display: grid;
  gap: 14px;
  margin-top: 34px;
}

.faq-list details {
  padding: 20px 24px;
  border-radius: 22px;
}

.faq-list summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  padding-right: 34px;
}

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

.faq-list summary::after {
  content: "";
  position: absolute;
  right: 4px;
  top: 50%;
  width: 10px;
  height: 10px;
  border-right: 1.8px solid rgba(239, 248, 255, 0.78);
  border-bottom: 1.8px solid rgba(239, 248, 255, 0.78);
  transform: translateY(-60%) rotate(45deg);
  transition: transform 0.24s ease, opacity 0.24s ease;
  opacity: 0.9;
}

.faq-list details[open] summary::after {
  transform: translateY(-30%) rotate(225deg);
}

.faq-list p {
  margin: 14px 0 0;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(28px) scale(0.985);
  transition:
    opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, opacity;
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0) scale(1);
}

@keyframes pulse {
  0%,
  100% {
    transform: translate(-50%, -50%) scale(0.98);
  }
  50% {
    transform: translate(-50%, -50%) scale(1.04);
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

@keyframes drift {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(0, -8px, 0);
  }
}

@keyframes shimmer {
  0%,
  100% {
    opacity: 0.18;
  }
  50% {
    opacity: 0.66;
  }
}

@keyframes scrollHintFloat {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(5px);
  }
}

@keyframes feature-drum-scroll {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(calc(-50% - 9px));
  }
}

@keyframes feature-drum-scroll-horizontal {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(calc(-50% - 9px));
  }
}

@media (max-width: 1440px) {
  :root {
    --max-width: 1120px;
  }

  .site-header {
    padding: 16px 22px;
    gap: 20px;
  }

  .header-actions {
    gap: 10px;
  }

  .button-small {
    padding: 0 16px;
  }

  .section-hero {
    gap: 36px;
    padding: 52px 0 40px;
  }

  .hero-visual {
    min-height: 560px;
  }

  .hero-text {
    max-width: 580px;
    font-size: 1.02rem;
  }

  .feature-drum {
    min-height: 660px;
  }

  .feature-lane {
    height: 660px;
  }
}

@media (max-width: 1600px) {
  .trust-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 1280px) {
  .section-heading {
    max-width: 700px;
  }

  .section-heading,
  .showcase-heading,
  .showcase-copy {
    padding-inline: 22px;
  }

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

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

  .about-stack > :last-child {
    grid-column: 1 / -1;
    text-align: center;
  }

  .about-stack > :nth-child(1),
  .about-stack > :nth-child(2) {
    text-align: center;
  }

  .about-stack > :last-child .content-card-media {
    width: min(100%, 240px);
    margin-left: auto;
    margin-right: auto;
  }

  .content-card,
  .download-card,
  .security-stage {
    padding: 24px;
  }

  .content-card {
    min-height: 362px;
  }

  .content-card-tech .content-card-media,
  .content-card-devices .content-card-media,
  .content-card-network .content-card-media {
    height: 184px;
    margin-bottom: 20px;
  }

  .content-card-tech .content-card-media img {
    max-width: 139px;
    max-height: 139px;
  }

  .content-card-devices .content-card-media img {
    max-width: 139px;
    max-height: 139px;
  }

  .feature-drum-card {
    padding: 20px;
  }

  .feature-drum-card h3,
  .content-card h3,
  .glass-panel h3 {
    font-size: 1.34rem;
  }
}

@media (max-width: 1080px) {
  .scroll-hint {
    display: none;
  }

  .security-stage-image {
    max-width: 54%;
    max-height: 220px;
  }

  .section-hero {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .hero-copy {
    order: 2;
    margin-top: -12px;
    padding-inline: 22px;
  }

  .hero-visual {
    order: 1;
  }

  .hero-visual {
    min-height: 520px;
  }

  .hero-points,
  .trust-strip,
  .content-columns,
  .showcase-panels {
    grid-template-columns: 1fr 1fr;
  }

  .security-stage {
    grid-template-columns: 1fr;
  }

  .security-stage-visual {
    min-height: 0;
  }

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

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

  .feature-drum {
    grid-template-columns: 1fr 1fr;
    min-height: 680px;
  }

  .feature-lane {
    height: 680px;
  }
}

@media (max-width: 980px) {
  .site-header {
    padding: 14px 18px;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "brand actions"
      "nav nav";
    border-radius: 28px;
    gap: 14px;
    align-items: center;
    justify-items: stretch;
  }

  .site-header.is-scrolled {
    padding: 13px 18px;
  }

  .brand {
    grid-area: brand;
    justify-self: start;
    justify-content: flex-start;
  }

  .site-nav {
    grid-area: nav;
    flex-wrap: wrap;
    justify-self: stretch;
    justify-content: center;
    gap: 10px;
  }

  .header-actions {
    grid-area: actions;
    justify-self: end;
    justify-content: flex-end;
    flex-wrap: nowrap;
    min-width: max-content;
  }

  .site-nav a {
    flex: 1 1 160px;
    max-width: calc(25% - 8px);
    text-align: center;
  }

  .hero-points,
  .trust-strip,
  .content-columns,
  .about-stack,
  .security-columns,
  .showcase-panels {
    grid-template-columns: 1fr;
  }

  .feature-drum {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 0;
  }

  .feature-lane {
    height: auto;
    overflow: visible;
    mask-image: none;
    -webkit-mask-image: none;
  }

  .feature-track,
  .feature-lane-reverse .feature-track {
    animation: none;
  }

  .feature-drum::before,
  .feature-drum::after {
    display: none;
  }

  .security-stage {
    gap: 20px;
  }

  .download-card {
    text-align: left;
  }

  .download-card p {
    margin-left: 0;
    margin-right: 0;
  }

  .download-card .hero-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 760px) {
  .site-header {
    top: 14px;
    padding: 16px 20px;
    border-radius: 28px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas: "brand actions";
    justify-items: stretch;
    overflow: visible;
  }

  .site-header.is-scrolled {
    top: 18px;
    padding: 15px 18px;
  }

  .site-nav {
    display: flex;
    position: absolute;
    top: calc(100% + 10px);
    left: auto;
    right: 0;
    z-index: 5;
    width: min(228px, calc(100vw - 36px));
    padding: 0;
    justify-self: auto;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px) scale(0.98);
    transform-origin: top right;
    background:
      linear-gradient(180deg, rgba(11, 26, 47, 0.97), rgba(6, 14, 27, 0.96));
    border: 1px solid rgba(170, 215, 255, 0.14);
    border-radius: 20px;
    backdrop-filter: blur(20px);
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.1),
      0 16px 34px rgba(0, 0, 0, 0.22);
    transition:
      opacity 0.22s ease,
      transform 0.22s ease,
      visibility 0.22s ease;
  }

  .site-header.is-menu-open .site-nav {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0) scale(1);
  }

  .header-actions {
    gap: 10px;
  }

  .header-telegram {
    width: 42px;
    height: 42px;
  }

  .header-burger {
    position: relative;
    display: inline-flex;
    width: 42px;
    height: 42px;
    background: rgba(255, 255, 255, 0.07);
  }

  .site-header.is-menu-open .header-burger {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(126, 223, 255, 0.34);
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.2),
      0 18px 36px rgba(30, 124, 214, 0.24);
  }

  .site-header.is-menu-open .header-burger span:nth-child(1) {
    transform: rotate(45deg);
  }

  .site-header.is-menu-open .header-burger span:nth-child(2) {
    opacity: 0;
  }

  .site-header.is-menu-open .header-burger span:nth-child(3) {
    transform: rotate(-45deg);
  }

  .site-nav a {
    flex: 0 0 auto;
    min-height: 42px;
    width: 100%;
    max-width: none;
    padding: 0 14px;
    font-size: 0.92rem;
    font-weight: 600;
    justify-content: center;
    text-align: center;
    color: var(--accent);
    background: transparent;
    border: 1px solid transparent;
    transition:
      color 0.2s ease,
      background 0.2s ease,
      border-color 0.2s ease;
  }

  .site-nav a + a {
    border-top: 1px solid rgba(170, 215, 255, 0.07);
    border-radius: 0;
  }

  .site-nav a:first-child {
    border-radius: 20px 20px 0 0;
  }

  .site-nav a:last-child {
    border-radius: 0 0 20px 20px;
  }

  .site-nav a:hover,
  .site-nav a:focus-visible {
    color: var(--text);
    background: rgba(255, 255, 255, 0.04);
    border-color: transparent;
    transform: none;
  }

  .site-nav-mobile-actions {
    display: none;
    align-items: center;
    justify-content: stretch;
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 10px;
    padding: 12px;
    border-top: 1px solid rgba(170, 215, 255, 0.08);
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0)),
      rgba(5, 12, 22, 0.28);
  }

  .site-nav .site-nav-mobile-actions .header-telegram {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 44px;
    width: 44px;
    min-height: 44px;
    height: 44px;
    padding: 0;
    border-radius: 999px;
    border: 1px solid rgba(170, 215, 255, 0.14);
    background: rgba(255, 255, 255, 0.04);
    box-shadow: none;
  }

  .site-nav .site-nav-mobile-actions .header-telegram img {
    width: 24px;
    height: 24px;
  }

  .site-nav .site-nav-mobile-actions .button.button-small {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 1 1 auto;
    width: 100%;
    max-width: none;
    min-height: 44px;
    height: 44px;
    padding: 0 16px;
    border-radius: 999px;
    font-size: 0.92rem;
    font-weight: 700;
    text-align: center;
    color: var(--text);
    background: linear-gradient(180deg, rgba(21, 47, 81, 0.92), rgba(10, 26, 46, 0.96));
    border: 1px solid rgba(126, 223, 255, 0.16);
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.08),
      0 10px 20px rgba(0, 0, 0, 0.16);
  }

  .site-nav .site-nav-mobile-actions .button.button-small:hover,
  .site-nav .site-nav-mobile-actions .button.button-small:focus-visible {
    transform: none;
    color: var(--text);
    background: linear-gradient(180deg, rgba(25, 55, 94, 0.94), rgba(12, 31, 54, 0.98));
    border-color: rgba(126, 223, 255, 0.2);
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.1),
      0 12px 24px rgba(0, 0, 0, 0.2);
  }

  .site-nav .site-nav-mobile-actions .header-telegram:hover,
  .site-nav .site-nav-mobile-actions .header-telegram:focus-visible {
    transform: none;
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(126, 223, 255, 0.2);
    box-shadow: none;
  }

  .section-hero {
    min-height: auto;
    padding-top: 40px;
  }

  .hero-copy,
  .hero-visual {
    order: initial;
  }

  .hero-copy {
    padding-inline: 22px;
  }

  .hero-actions {
    width: 100%;
  }

  .hero-actions .button,
  .hero-actions .button-small {
    width: 100%;
  }

  .hero-visual {
    display: none;
  }

  .scroll-hint {
    bottom: -16px;
  }

  .hero h1,
  .section-heading h2,
  .showcase-copy h2,
  .download-card h2 {
    line-height: 1.02;
  }

  .price-heading {
    font-size: clamp(1.45rem, 6vw, 2.35rem) !important;
  }

  .hero-points,
  .trust-strip,
  .content-columns,
  .showcase-panels {
    grid-template-columns: 1fr;
  }

  .about-stack {
    grid-template-columns: 1fr;
  }

  .about-stack > :last-child {
    grid-column: auto;
  }

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

  .security-stage {
    padding: 28px;
  }

  .security-stage-visual {
    min-height: 240px;
    padding-left: 0;
  }

  .security-stage-image-frame {
    width: 100%;
  }

  .content-card {
    min-height: 360px;
  }

  .content-card-media {
    height: 170px;
  }

  .feature-drum {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .feature-lane {
    height: auto;
    overflow: visible;
    mask-image: none;
    -webkit-mask-image: none;
  }

  .feature-track,
  .feature-lane-reverse .feature-track {
    animation: none;
  }

  .feature-drum::before,
  .feature-drum::after {
    display: none;
  }

  .device-card {
    inset: 9%;
  }

  .floating-card-left,
  .floating-card-right {
    position: relative;
    left: auto;
    right: auto;
    top: auto;
    bottom: auto;
    margin-top: 14px;
    display: inline-flex;
  }

  .download-card {
    padding: 28px;
    text-align: left;
  }

  .download-card .hero-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .site-header {
    width: min(var(--max-width), calc(100% - 20px));
    padding: 14px 16px;
    gap: 12px;
  }

  .site-nav a {
    flex: 0 0 auto;
    max-width: none;
    padding: 0 14px;
  }

  .header-actions {
    width: auto;
    flex-wrap: nowrap;
  }

  .header-actions .button,
  .header-actions .button-small,
  .header-actions .header-telegram,
  .header-actions .header-burger {
    flex: 0 0 auto;
  }

  .hero-actions .button,
  .hero-actions .button-small {
    width: 100%;
  }

  .section {
    width: min(var(--max-width), calc(100% - 20px));
  }

  .section-hero {
    padding-top: 28px;
  }

  .hero-visual {
    min-height: 420px;
  }

  .device-stage {
    width: min(100%, 380px);
  }

  .floating-card {
    padding: 12px 14px;
    font-size: 0.92rem;
  }

  .trust-item,
  .content-card,
  .glass-panel,
  .download-card,
  .feature-drum-card,
  .faq-list details,
  .security-stage {
    padding-left: 18px;
    padding-right: 18px;
  }

  .content-card {
    min-height: 332px;
  }

  .content-card-media,
  .content-card-tech .content-card-media,
  .content-card-devices .content-card-media,
  .content-card-network .content-card-media {
    height: 156px;
    margin-bottom: 20px;
  }

  .content-card-tech .content-card-media img {
    max-width: 58%;
  }

  .content-card-devices .content-card-media img,
  .content-card-network .content-card-media img {
    max-width: 56%;
  }
}

@media (max-width: 1080px) {
  .feature-drum {
    grid-template-columns: 1fr;
    gap: 14px;
    min-height: auto;
    padding: 0;
  }

  .feature-drum::before,
  .feature-drum::after {
    display: none;
  }

  .feature-lane {
    height: auto;
    overflow: hidden;
    mask-image: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.7) 6%, #000 12%, #000 88%, rgba(0, 0, 0, 0.7) 94%, transparent 100%);
    -webkit-mask-image: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.7) 6%, #000 12%, #000 88%, rgba(0, 0, 0, 0.7) 94%, transparent 100%);
  }

  .feature-track,
  .feature-lane-reverse .feature-track {
    display: flex;
    flex-direction: row;
    width: max-content;
    gap: 14px;
    animation: feature-drum-scroll-horizontal 34s linear infinite;
    will-change: transform;
  }

  .feature-lane-reverse .feature-track {
    animation-direction: reverse;
    animation-duration: 38s;
  }

  .feature-drum-card {
    width: min(440px, calc(100vw - 40px));
    min-height: 100%;
    flex: 0 0 auto;
  }
}

@media (max-width: 420px) {
  .section {
    width: min(var(--max-width), calc(100% - 24px));
  }

  .site-header {
    width: min(var(--max-width), calc(100% - 24px));
    gap: 14px;
  }

  .site-nav a {
    min-height: 38px;
    padding: 0 14px;
    font-size: 0.92rem;
  }

  .header-actions {
    gap: 8px;
  }

  .header-telegram {
    width: 40px;
    height: 40px;
  }

  .header-burger {
    width: 40px;
    height: 40px;
  }

  .brand {
    gap: 10px;
  }

  .brand span {
    font-size: 1.08rem;
  }

  .button-small {
    font-size: 0.94rem;
  }

  .hero-text {
    font-size: 1rem;
  }

  .hero-actions {
    width: 100%;
  }

  .hero-actions .button {
    width: 100%;
  }

  .device-card {
    inset: 10%;
    border-radius: 32px;
  }

  .device-screen {
    border-radius: 22px;
  }

  .floating-card {
    font-size: 0.92rem;
  }

  .trust-item,
  .feature-drum-card,
  .content-card,
  .glass-panel,
  .download-card,
  .faq-list details {
    padding-left: 20px;
    padding-right: 20px;
  }
}

@media (max-width: 480px) {
  .header-actions .header-telegram-custom,
  .header-actions .button-small {
    display: none;
  }

  .header-actions {
    gap: 0;
  }

  .site-nav {
    width: min(244px, calc(100vw - 28px));
  }

  .site-nav-mobile-actions {
    display: grid;
  }
}

@media (max-width: 360px) {
  .site-header {
    width: min(var(--max-width), calc(100% - 16px));
    padding: 12px 14px;
  }

  .section {
    width: min(var(--max-width), calc(100% - 16px));
  }

  .brand img {
    width: 42px;
    height: 42px;
  }

  .site-nav a {
    min-height: 36px;
    font-size: 0.9rem;
  }

  .button {
    min-height: 48px;
    font-size: 0.94rem;
  }

  .button-small {
    min-height: 40px;
    font-size: 0.88rem;
  }

  .hero h1,
  .section-heading h2,
  .showcase-copy h2,
  .download-card h2 {
    line-height: 1.04;
  }

  .hero-text,
  .section-heading p,
  .showcase-copy p,
  .download-card p,
  .content-card p,
  .glass-panel p,
  .faq p {
    font-size: 0.94rem;
  }

  .hero-visual {
    min-height: 360px;
  }

  .device-stage {
    width: min(100%, 320px);
  }

  .content-card,
  .glass-panel,
  .download-card,
  .security-stage {
    border-radius: 22px;
  }
}

@media (max-width: 300px) {
  .site-header {
    top: 10px;
    padding: 10px 12px;
    border-radius: 22px;
  }

  .site-nav a {
    flex: 0 0 auto;
    max-width: none;
    padding: 0 12px;
    font-size: 0.84rem;
  }

  .hero-actions {
    gap: 10px;
  }

  .button,
  .button-small {
    min-height: 44px;
    padding: 0 14px;
    font-size: 0.86rem;
  }

  .trust-item strong {
    font-size: 1.6rem;
  }

  .content-card,
  .feature-drum-card,
  .glass-panel,
  .download-card,
  .faq-list details,
  .security-stage {
    padding-left: 14px;
    padding-right: 14px;
  }

  .content-card-media,
  .content-card-tech .content-card-media,
  .content-card-devices .content-card-media,
  .content-card-network .content-card-media {
    height: 140px;
  }
}

@media (min-width: 1600px) {
  :root {
    --max-width: 1380px;
  }

  .site-nav a {
    font-size: 1.08rem;
  }

  .section-hero {
    gap: 64px;
    padding-top: 84px;
  }

  .hero-visual {
    min-height: 700px;
  }
}

@media (min-width: 2200px) {
  :root {
    --max-width: 1580px;
  }

  .site-nav a {
    font-size: 1.14rem;
  }

  .section-hero {
    gap: 80px;
  }

  .hero-visual {
    min-height: 760px;
  }

  .feature-grid,
  .content-columns {
    gap: 24px;
  }

  .about-stack {
    gap: 24px;
  }

  .content-card {
    min-height: 432px;
    padding: 30px;
  }

  .content-card-tech .content-card-media,
  .content-card-devices .content-card-media,
  .content-card-network .content-card-media {
    height: 224px;
    margin-bottom: 26px;
  }

  .content-card-tech .content-card-media {
    padding: 0;
  }

  .content-card-tech .content-card-media img {
    max-width: 54%;
    max-height: 88%;
  }

  .content-card-devices .content-card-media img,
  .content-card-network .content-card-media img {
    max-width: 54%;
    max-height: 78%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}