:root {
  --line: rgba(120, 187, 255, 0.14);
  --line-strong: rgba(120, 187, 255, 0.32);
  --text: #ecf5ff;
  --muted: #9bb6d6;
  --accent: #46d3ff;
  --accent-strong: #17b5ff;
  --accent-soft: rgba(70, 211, 255, 0.16);
  --success: #78ffbf;
  --surface-strong: rgba(8, 18, 32, 0.88);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --radius-lg: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(23, 181, 255, 0.24), transparent 30%),
    radial-gradient(circle at 85% 10%, rgba(120, 255, 191, 0.12), transparent 20%),
    linear-gradient(180deg, #07101c 0%, #020811 100%);
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.page-shell {
  position: relative;
  overflow: hidden;
  width: min(1200px, calc(100% - 32px));
  margin: 16px auto;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 36px;
  background: rgba(3, 10, 20, 0.82);
  box-shadow: var(--shadow);
  isolation: isolate;
}

.ambient {
  position: absolute;
  border-radius: 999px;
  filter: blur(14px);
  opacity: 0.75;
  z-index: -2;
}

.ambient-left {
  inset: 6% auto auto -9%;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(70, 211, 255, 0.34), transparent 68%);
  animation: drift 12s ease-in-out infinite;
}

.ambient-right {
  inset: auto -7% 12% auto;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(23, 181, 255, 0.28), transparent 70%);
  animation: drift 14s ease-in-out infinite reverse;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(120, 187, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 187, 255, 0.07) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 92%);
  z-index: -1;
}

.topbar,
.hero,
.info-grid,
.footer {
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 48px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 16px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 62px;
  height: 62px;
  border: 1px solid var(--line-strong);
  border-radius: 20px;
  background:
    linear-gradient(145deg, rgba(70, 211, 255, 0.22), rgba(23, 181, 255, 0.06)),
    rgba(7, 17, 31, 0.92);
  font-family: "Sora", sans-serif;
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brand-copy strong {
  font-family: "Sora", sans-serif;
  font-size: 1.1rem;
}

.brand-copy small {
  color: var(--muted);
  font-size: 0.88rem;
}

.topbar-status {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(6, 16, 29, 0.7);
  color: var(--muted);
  font-size: 0.95rem;
}

.pulse {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 0 rgba(120, 255, 191, 0.42);
  animation: pulse 2s infinite;
}

.hero-copy,
.info-card,
.footer {
  backdrop-filter: blur(18px);
}

.hero-copy {
  max-width: 760px;
  margin: 0 auto;
  padding: 6px 4px 6px 0;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 20px 0 18px;
  font-family: "Sora", sans-serif;
  font-size: clamp(2.7rem, 6vw, 5rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
  max-width: 10.5ch;
}

.lead {
  max-width: 62ch;
  margin: 0 auto 26px;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.75;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-bottom: 26px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 20px;
  border-radius: 16px;
  border: 1px solid transparent;
  font-weight: 700;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

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

.button-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #05111e;
  box-shadow: 0 18px 36px rgba(23, 181, 255, 0.28);
}

.button-secondary {
  border-color: var(--line-strong);
  background: rgba(8, 18, 32, 0.64);
  color: var(--text);
}

.trust-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 0 auto;
  list-style: none;
}

.trust-list li {
  position: relative;
  padding-left: 0;
  color: var(--muted);
  text-align: center;
}

.trust-list li::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 12px;
  vertical-align: middle;
  position: static;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--success));
  box-shadow: 0 0 18px rgba(70, 211, 255, 0.45);
}

.maintenance-visual {
  position: relative;
  width: min(100%, 320px);
  aspect-ratio: 1;
  margin: 12px auto 28px;
}

.orbit {
  position: absolute;
  inset: 50%;
  border: 1px solid rgba(120, 187, 255, 0.18);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.orbit-one {
  width: 100%;
  height: 100%;
  animation: spin 16s linear infinite;
}

.orbit-two {
  width: 76%;
  height: 76%;
  border-style: dashed;
  animation: spinReverse 12s linear infinite;
}

.orbit-three {
  width: 52%;
  height: 52%;
  opacity: 0.85;
  animation: pulseRing 2.8s ease-in-out infinite;
}

.visual-core {
  position: absolute;
  inset: 50%;
  display: grid;
  place-items: center;
  width: 104px;
  height: 104px;
  border: 1px solid var(--line-strong);
  border-radius: 28px;
  transform: translate(-50%, -50%) rotate(45deg);
  background:
    radial-gradient(circle at 30% 30%, rgba(120, 255, 191, 0.16), transparent 45%),
    linear-gradient(145deg, rgba(70, 211, 255, 0.24), rgba(23, 181, 255, 0.08)),
    rgba(7, 17, 31, 0.92);
  box-shadow:
    0 0 40px rgba(23, 181, 255, 0.16),
    inset 0 0 24px rgba(255, 255, 255, 0.04);
  animation: floatCore 4s ease-in-out infinite;
}

.core-icon {
  transform: rotate(-45deg);
  font-family: "Sora", sans-serif;
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1;
  color: var(--text);
  text-shadow: 0 0 18px rgba(70, 211, 255, 0.4);
}

.signal-node {
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--success));
  box-shadow: 0 0 22px rgba(70, 211, 255, 0.45);
}

.node-top {
  top: 8%;
  left: 50%;
  transform: translateX(-50%);
  animation: blinkNode 2s ease-in-out infinite;
}

.node-right {
  top: 50%;
  right: 8%;
  transform: translateY(-50%);
  animation: blinkNode 2s ease-in-out infinite 0.5s;
}

.node-bottom {
  bottom: 8%;
  left: 50%;
  transform: translateX(-50%);
  animation: blinkNode 2s ease-in-out infinite 1s;
}

.node-left {
  top: 50%;
  left: 8%;
  transform: translateY(-50%);
  animation: blinkNode 2s ease-in-out infinite 1.5s;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 30px;
}

.info-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(8, 18, 32, 0.72);
}

.info-index {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.info-card h2 {
  margin: 14px 0 14px;
  font-family: "Sora", sans-serif;
  font-size: 1.2rem;
}

.info-card p,
.footer p,
.footer span {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 24px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-strong);
}

.footer strong {
  display: block;
  margin-bottom: 8px;
  font-family: "Sora", sans-serif;
}

.footer-meta {
  display: grid;
  gap: 6px;
  text-align: right;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(120, 255, 191, 0.42);
  }
  70% {
    box-shadow: 0 0 0 12px rgba(120, 255, 191, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(120, 255, 191, 0);
  }
}

@keyframes drift {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  50% {
    transform: translate3d(14px, -18px, 0) scale(1.05);
  }
}

@keyframes spin {
  from {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

@keyframes spinReverse {
  from {
    transform: translate(-50%, -50%) rotate(360deg);
  }
  to {
    transform: translate(-50%, -50%) rotate(0deg);
  }
}

@keyframes floatCore {
  0%,
  100% {
    transform: translate(-50%, -50%) rotate(45deg) scale(1);
  }
  50% {
    transform: translate(-50%, -53%) rotate(45deg) scale(1.04);
  }
}

@keyframes pulseRing {
  0%,
  100% {
    opacity: 0.45;
    transform: translate(-50%, -50%) scale(0.98);
  }
  50% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.05);
  }
}

@keyframes blinkNode {
  0%,
  100% {
    opacity: 0.45;
    transform-origin: center;
  }
  50% {
    opacity: 1;
    transform-origin: center;
  }
}

@media (max-width: 1024px) {
  .hero h1 {
    max-width: 13ch;
  }

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

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 18px, 100%);
    margin: 9px auto;
    padding: 18px;
    border-radius: 26px;
  }

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

  .topbar {
    margin-bottom: 34px;
  }

  .brand {
    align-items: flex-start;
  }

  .hero h1 {
    font-size: clamp(2.2rem, 12vw, 3.5rem);
    max-width: 100%;
  }

  .cta-row,
  .button {
    width: 100%;
  }

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}