:root {
  --bg: #05070d;
  --bg-soft: #090d17;
  --card: rgba(255, 255, 255, 0.065);
  --card-strong: rgba(255, 255, 255, 0.105);
  --line: rgba(255, 255, 255, 0.12);
  --line-strong: rgba(84, 245, 226, 0.36);
  --text: #f8fbff;
  --muted: #b4bed0;
  --muted-2: #7d8798;
  --cyan: #4ff3e2;
  --cyan-2: #35a8ff;
  --violet: #7b5cff;
  --gold: #d2c49a;
  --danger: #ff4f6f;
  --radius: 28px;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.48);
  --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--text);
  font-family: var(--font);
  background:
    radial-gradient(circle at 18% 12%, rgba(79, 243, 226, 0.13), transparent 28rem),
    radial-gradient(circle at 82% 8%, rgba(123, 92, 255, 0.13), transparent 28rem),
    radial-gradient(circle at 50% 100%, rgba(53, 168, 255, 0.16), transparent 34rem),
    linear-gradient(145deg, #05070d 0%, #080b14 48%, #03050a 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.32;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 74px 74px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.92), transparent 84%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at center, transparent 0%, rgba(0,0,0,0.16) 58%, rgba(0,0,0,0.72) 100%);
}

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

img {
  max-width: 100%;
}

.page-noise {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.05;
  background-image:
    repeating-radial-gradient(circle at 10% 20%, rgba(255,255,255,0.8) 0 1px, transparent 1px 5px);
}

.page-glow {
  position: fixed;
  z-index: 0;
  pointer-events: none;
  border-radius: 999px;
  filter: blur(86px);
}

.glow-one {
  top: -18rem;
  right: -14rem;
  width: 42rem;
  height: 42rem;
  background: rgba(79, 243, 226, 0.11);
}

.glow-two {
  bottom: -20rem;
  left: -16rem;
  width: 48rem;
  height: 48rem;
  background: rgba(123, 92, 255, 0.13);
}

.topbar,
main,
.footer {
  width: min(1180px, calc(100% - 48px));
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

.topbar {
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.brand img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  filter: drop-shadow(0 0 20px rgba(79,243,226,0.18));
}

.brand span {
  white-space: nowrap;
}

.nav {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,0.035);
  backdrop-filter: blur(18px);
}

.nav a,
.nav-cta {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 15px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 750;
  transition: 0.2s ease;
}

.nav a:hover {
  color: var(--text);
  background: rgba(255,255,255,0.07);
}

.nav-cta {
  color: #061013;
  background: linear-gradient(135deg, var(--cyan), #8dfff3);
  box-shadow: 0 10px 34px rgba(79,243,226,0.18);
}

.hero {
  min-height: calc(100vh - 90px);
  display: grid;
  place-items: center;
  padding: clamp(34px, 5vw, 72px) 0 98px;
  position: relative;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  border-radius: 34px;
}

.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(5,7,13,0.45), rgba(5,7,13,0.88)),
    radial-gradient(circle at 50% 50%, transparent 0%, rgba(5,7,13,0.22) 38%, rgba(5,7,13,0.92) 100%);
  z-index: 1;
}

.hero-bg img {
  position: absolute;
  width: min(1050px, 130vw);
  max-width: none;
  right: 50%;
  top: 45%;
  transform: translate(50%, -50%);
  opacity: 0.24;
  filter: saturate(1.28) contrast(1.08);
}

.hero-card {
  width: min(920px, 100%);
  padding: clamp(32px, 5vw, 66px);
  text-align: center;
  border: 1px solid rgba(255,255,255,0.13);
  border-radius: 40px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.035));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero-logo {
  width: clamp(150px, 22vw, 245px);
  margin: 0 auto 24px;
  display: block;
  filter: drop-shadow(0 20px 34px rgba(0,0,0,0.56));
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin: 0 0 24px;
  line-height: 0.9;
}

h1 span {
  display: block;
  color: var(--text);
  font-size: clamp(3.35rem, 8.5vw, 7.8rem);
  letter-spacing: -0.065em;
  font-weight: 950;
}

h1 strong {
  display: block;
  margin-top: 18px;
  color: var(--gold);
  font-size: clamp(0.95rem, 1.8vw, 1.45rem);
  letter-spacing: 0.36em;
  text-transform: uppercase;
}

.hero-lead {
  max-width: 820px;
  margin: 0 auto 14px;
  font-size: clamp(1.25rem, 2.45vw, 2rem);
  line-height: 1.25;
  font-weight: 850;
  letter-spacing: -0.04em;
}

.hero-ru,
.ru-text {
  max-width: 780px;
  margin: 0 auto;
  color: var(--muted);
  font-size: clamp(1rem, 1.45vw, 1.18rem);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 34px;
}

.button {
  min-height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 24px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-weight: 900;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

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

.button.primary {
  color: #061013;
  background: linear-gradient(135deg, var(--cyan), #8dfff3 52%, #59aaff);
  border-color: transparent;
  box-shadow: 0 16px 44px rgba(79,243,226,0.18);
}

.button.secondary {
  color: var(--text);
  background: rgba(255,255,255,0.04);
}

.button.secondary:hover {
  border-color: var(--line-strong);
  background: rgba(79,243,226,0.08);
}

.section {
  margin: 0 0 clamp(82px, 10vw, 128px);
}

.about {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: clamp(28px, 6vw, 70px);
  align-items: center;
  padding-top: 24px;
}

.section-copy h2,
.section-heading h2,
.cta h2,
.contact h2 {
  margin: 0 0 22px;
  max-width: 880px;
  font-size: clamp(2.45rem, 5vw, 5rem);
  line-height: 0.94;
  letter-spacing: -0.075em;
}

.section-copy p:not(.eyebrow),
.cta p {
  color: var(--muted);
  font-size: clamp(1.05rem, 1.45vw, 1.24rem);
  line-height: 1.75;
}

.brain-panel {
  min-height: 430px;
  position: relative;
  border: 1px solid rgba(79,243,226,0.22);
  border-radius: 38px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(79,243,226,0.09), rgba(123,92,255,0.11)),
    rgba(255,255,255,0.045);
  box-shadow: var(--shadow);
}

.brain-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, transparent, rgba(5,7,13,0.32) 55%, rgba(5,7,13,0.78) 100%);
}

.brain-panel img {
  width: 112%;
  max-width: none;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.88;
  filter: saturate(1.25) contrast(1.05);
}

.section-heading {
  margin-bottom: 28px;
}

.section-heading.center {
  text-align: center;
}

.section-heading.center h2 {
  margin-inline: auto;
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.topic-card,
.channel-card {
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.035));
  box-shadow: 0 20px 70px rgba(0,0,0,0.24);
  backdrop-filter: blur(16px);
}

.topic-card {
  min-height: 250px;
  padding: 26px;
  transition: 0.2s ease;
}

.topic-card:hover,
.channel-card:hover {
  transform: translateY(-4px);
  border-color: rgba(79,243,226,0.34);
}

.topic-card span {
  display: block;
  margin-bottom: 54px;
  font-size: 2rem;
}

.topic-card h3 {
  margin-bottom: 12px;
  font-size: 1.25rem;
}

.topic-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.62;
}

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

.channel-card {
  min-height: 330px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  transition: 0.2s ease;
}

.channel-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  pointer-events: none;
  opacity: 0.55;
  background: radial-gradient(circle at top right, rgba(79,243,226,0.14), transparent 20rem);
}

.channel-icon {
  width: 62px;
  height: 62px;
  display: grid;
  place-items: center;
  margin-bottom: auto;
  border-radius: 22px;
  color: white;
  background: linear-gradient(135deg, #ff0033, #ff6a4e);
  font-size: 1.35rem;
  box-shadow: 0 16px 34px rgba(255, 0, 51, 0.18);
}

.strange-logo {
  width: 86px;
  height: 86px;
  object-fit: contain;
  margin-bottom: auto;
  border-radius: 22px;
  background: rgba(255,255,255,0.9);
  padding: 9px;
}

.channel-label {
  margin: 34px 0 12px;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  font-weight: 950;
}

.channel-card h3 {
  margin: 0 0 8px;
  font-size: clamp(1.8rem, 3vw, 3rem);
  letter-spacing: -0.07em;
  line-height: 0.95;
}

.channel-card strong {
  color: var(--muted);
  font-size: 1rem;
}

.channel-link {
  width: fit-content;
  margin-top: 24px;
  display: inline-flex;
  padding: 12px 15px;
  border-radius: 999px;
  color: #061013;
  background: var(--cyan);
  font-weight: 950;
}

.cta {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 26px;
  align-items: center;
  padding: clamp(28px, 5vw, 54px);
  border: 1px solid rgba(79,243,226,0.24);
  border-radius: 36px;
  background:
    radial-gradient(circle at top right, rgba(79,243,226,0.16), transparent 22rem),
    linear-gradient(135deg, rgba(255,255,255,0.08), rgba(255,255,255,0.035));
}

.contact {
  text-align: center;
  padding: clamp(36px, 7vw, 76px);
  border-radius: 36px;
  border: 1px solid rgba(255,255,255,0.13);
  background: rgba(255,255,255,0.045);
}

.contact h2 {
  margin-inline: auto;
}

.email {
  display: inline-flex;
  max-width: 100%;
  padding: 16px 22px;
  border-radius: 999px;
  color: #061013;
  background: var(--gold);
  font-weight: 950;
  word-break: break-word;
}

.footer {
  margin-bottom: 34px;
  padding: 28px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 28px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: rgba(255,255,255,0.045);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-brand img {
  width: 58px;
  height: 58px;
  object-fit: contain;
}

.footer-brand strong,
.footer-brand span {
  display: block;
}

.footer-brand span {
  margin-top: 4px;
  color: var(--muted);
}

.footer-main {
  text-align: right;
}

.footer-main p {
  margin: 0 0 10px;
  color: var(--muted);
}

.company-link {
  display: inline-flex;
  padding: 12px 16px;
  border-radius: 999px;
  color: var(--cyan);
  border: 1px solid rgba(79,243,226,0.28);
  background: rgba(79,243,226,0.075);
  font-weight: 900;
}

@media (max-width: 980px) {
  .nav { display: none; }

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

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

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

  .channel-card {
    min-height: 270px;
  }

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

  .footer-main {
    text-align: left;
  }
}

@media (max-width: 680px) {
  .topbar,
  main,
  .footer {
    width: min(100% - 30px, 1180px);
  }

  .topbar {
    height: 78px;
  }

  .brand span {
    display: none;
  }

  .nav-cta {
    min-height: 42px;
    padding: 0 17px;
  }

  .hero {
    min-height: calc(100vh - 78px);
    padding: 18px 0 70px;
  }

  .hero-card {
    padding: 28px 16px;
    border-radius: 30px;
  }

  .hero-logo {
    width: 152px;
    margin-bottom: 18px;
  }

  h1 span {
    font-size: clamp(2.45rem, 13vw, 4.25rem);
    letter-spacing: -0.045em;
  }

  h1 strong {
    font-size: 0.74rem;
    letter-spacing: 0.22em;
    line-height: 1.5;
  }

  .hero-lead {
    font-size: 1.15rem;
  }

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

  .button {
    width: 100%;
  }

  .section {
    margin-bottom: 78px;
  }

  .section-copy h2,
  .section-heading h2,
  .cta h2,
  .contact h2 {
    font-size: clamp(2.15rem, 12vw, 3.35rem);
    letter-spacing: -0.065em;
  }

  .brain-panel {
    min-height: 300px;
    border-radius: 30px;
  }

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

  .topic-card {
    min-height: 210px;
  }

  .topic-card span {
    margin-bottom: 36px;
  }

  .footer {
    padding: 22px;
    margin-bottom: 20px;
  }

  .company-link {
    width: 100%;
    justify-content: center;
    text-align: center;
  }
}