:root {
  --bg: #050911;
  --panel: rgba(10, 20, 35, 0.76);
  --line: rgba(132, 178, 222, 0.22);
  --ink: #f0f7ff;
  --muted: #9db1cf;
  --accent: #14f1c7;
  --accent-2: #68e7ff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: clip;
  color: var(--ink);
  font-family: "Space Grotesk", "Avenir Next", "Segoe UI", sans-serif;
  background:
    linear-gradient(110deg, rgba(5, 9, 17, 0.97) 0%, rgba(6, 16, 28, 0.92) 48%, rgba(15, 23, 42, 0.78) 100%),
    url("/assets/alphanode-logo.png") right 8vw top 120px / min(46vw, 660px) auto no-repeat,
    linear-gradient(135deg, #050911 0%, #071a22 48%, #1a132c 100%);
}

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px clamp(22px, 5vw, 68px);
  backdrop-filter: blur(18px);
  background: linear-gradient(180deg, rgba(5, 9, 17, 0.84), rgba(5, 9, 17, 0));
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand img {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(20, 241, 199, 0.34);
}

.header-launch,
.launch-btn,
.secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 8px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.header-launch,
.launch-btn {
  padding: 0 18px;
  color: #03120f;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 12px 34px rgba(20, 241, 199, 0.22);
}

.hero {
  min-height: 94vh;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 0.8fr);
  align-items: center;
  gap: clamp(28px, 6vw, 92px);
  padding: 126px clamp(24px, 6vw, 86px) 80px;
}

.hero-copy {
  max-width: 780px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(4rem, 11vw, 10rem);
  line-height: 0.86;
  letter-spacing: 0;
}

.lede {
  max-width: 720px;
  margin: 28px 0 0;
  color: #c5d5ec;
  font-size: clamp(1.08rem, 2vw, 1.45rem);
  line-height: 1.55;
}

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

.secondary-link {
  padding: 0 18px;
  border: 1px solid var(--line);
  color: #dbe9fb;
  background: rgba(10, 20, 35, 0.58);
}

.hero-visual {
  position: relative;
  min-height: 650px;
  display: grid;
  align-items: center;
}

.hero-logo {
  width: min(92%, 520px);
  justify-self: end;
  opacity: 0.32;
  filter: drop-shadow(0 24px 70px rgba(20, 241, 199, 0.12));
}

.operator-board {
  position: absolute;
  right: -24px;
  bottom: 330px;
  width: min(92%, 420px);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: rgba(6, 13, 24, 0.74);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
}

.vc-board {
  position: absolute;
  right: 104px;
  bottom: -20px;
  width: min(90%, 500px);
  border: 1px solid rgba(20, 241, 199, 0.26);
  border-radius: 8px;
  overflow: hidden;
  background: rgba(4, 18, 23, 0.86);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
}

.operator-board-head {
  padding: 18px 18px 14px;
  border-bottom: 1px solid var(--line);
}

.operator-board-head span {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.operator-board-head strong {
  display: block;
  margin-top: 8px;
  font-size: 1.28rem;
}

.operator-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 18px 18px;
}

.operator-tags span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 30px;
  padding: 4px 10px;
  border: 1px solid rgba(104, 231, 255, 0.26);
  border-radius: 999px;
  color: #dff8ff;
  background: rgba(104, 231, 255, 0.08);
  font-size: 0.86rem;
  font-weight: 800;
}

.operator-tags em {
  font-style: normal;
  color: var(--accent);
  font-size: 0.76rem;
}

.vc-clusters {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding: 16px 18px 18px;
}

.vc-clusters span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 5px 10px;
  border: 1px solid rgba(20, 241, 199, 0.24);
  border-radius: 999px;
  background: rgba(20, 241, 199, 0.08);
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 800;
}

.vc-clusters .more-chip {
  color: #03120f;
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.signals {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border-top: 1px solid var(--line);
  background: var(--line);
}

.signals article {
  min-height: 260px;
  padding: clamp(28px, 4vw, 48px);
  background: rgba(7, 15, 28, 0.94);
}

.signals span {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.13em;
}

.signals h2 {
  margin: 22px 0 12px;
  font-size: clamp(1.35rem, 2.3vw, 2rem);
}

.signals p {
  margin: 0;
  color: var(--muted);
  line-height: 1.58;
  font-size: 1rem;
}

@media (max-width: 900px) {
  body {
    background:
      linear-gradient(180deg, rgba(5, 9, 17, 0.96), rgba(6, 16, 28, 0.86)),
      url("/assets/alphanode-logo.png") center 55% / min(92vw, 520px) auto no-repeat,
      linear-gradient(135deg, #050911 0%, #071a22 48%, #1a132c 100%);
  }

  .site-header {
    padding: 16px 18px;
  }

  .brand span {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    padding: 104px 20px 64px;
  }

  h1 {
    font-size: clamp(3.25rem, 16vw, 5rem);
  }

  .hero-visual {
    min-height: 300px;
    gap: 16px;
  }

  .operator-board {
    position: relative;
    width: 100%;
    bottom: auto;
  }

  .vc-board {
    position: relative;
    right: auto;
    bottom: auto;
    width: 100%;
  }

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