:root {
  color-scheme: dark;
  --bg: #070b14;
  --panel: rgba(17, 24, 39, 0.72);
  --panel-strong: rgba(23, 32, 48, 0.92);
  --text: #eef4ff;
  --muted: #a7b3c8;
  --line: rgba(148, 163, 184, 0.18);
  --cyan: #55d6ff;
  --green: #82f7b1;
  --rose: #ff7aa8;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 20% 0%, rgba(85, 214, 255, 0.16), transparent 31rem),
    linear-gradient(135deg, #070b14 0%, #111827 48%, #09111f 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

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

.site-shell {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand,
.nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  font-weight: 800;
  font-size: 18px;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(85, 214, 255, 0.44);
  border-radius: 8px;
  background: rgba(85, 214, 255, 0.12);
  color: var(--cyan);
  font-size: 14px;
}

.nav {
  gap: 8px;
}

.nav a {
  padding: 10px 13px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 14px;
  transition: 160ms ease;
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  align-items: center;
  gap: 42px;
  min-height: min(650px, calc(100vh - 170px));
  padding: 74px 0 52px;
}

.eyebrow,
.section-heading p {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 22px;
  font-size: clamp(54px, 8vw, 112px);
  line-height: 0.92;
}

.hero-description {
  max-width: 720px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.75;
}

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

.primary-action,
.secondary-action,
.copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 8px;
  font-weight: 800;
  transition: 180ms ease;
}

.primary-action {
  padding: 0 22px;
  background: linear-gradient(135deg, var(--cyan), var(--green));
  color: #031018;
}

.secondary-action {
  padding: 0 22px;
  border: 1px solid var(--line);
  color: var(--text);
}

.primary-action:hover,
.secondary-action:hover,
.copy-btn:hover {
  transform: translateY(-2px);
}

.signal-panel {
  position: relative;
  min-height: 360px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent),
    var(--panel);
  box-shadow: var(--shadow);
}

.signal-panel::before {
  content: "";
  position: absolute;
  inset: 36px;
  border: 1px solid rgba(85, 214, 255, 0.2);
  border-radius: 8px;
}

.signal-panel span {
  position: absolute;
  left: 14%;
  right: 14%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  animation: scan 3s infinite;
}

.signal-panel span:nth-child(1) {
  top: 34%;
}

.signal-panel span:nth-child(2) {
  top: 50%;
  animation-delay: 0.4s;
}

.signal-panel span:nth-child(3) {
  top: 66%;
  animation-delay: 0.8s;
}

.signal-panel strong {
  position: absolute;
  right: 28px;
  bottom: 28px;
  color: var(--green);
  font-size: 13px;
}

@keyframes scan {
  0%,
  100% {
    opacity: 0.25;
    transform: translateX(-22px);
  }
  50% {
    opacity: 1;
    transform: translateX(22px);
  }
}

.notice {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  margin-bottom: 82px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
}

.notice span {
  color: var(--green);
  font-weight: 800;
}

.notice p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.services {
  padding: 0 0 64px;
}

.section-heading h2 {
  margin-bottom: 28px;
  font-size: clamp(32px, 4vw, 54px);
}

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

.service-card {
  display: flex;
  min-height: 292px;
  flex-direction: column;
  justify-content: space-between;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.2);
}

.service-head span {
  display: inline-flex;
  margin-bottom: 16px;
  padding: 6px 10px;
  border: 1px solid rgba(85, 214, 255, 0.3);
  border-radius: 8px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
}

.service-card h3 {
  margin-bottom: 14px;
  font-size: 24px;
}

.service-card p {
  color: var(--muted);
  line-height: 1.7;
}

.service-link {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  margin-top: 22px;
}

.service-link a {
  overflow: hidden;
  color: var(--cyan);
  font-size: 14px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.copy-btn {
  min-width: 68px;
  border: 0;
  background: rgba(130, 247, 177, 0.14);
  color: var(--green);
  cursor: pointer;
}

.disclaimer {
  margin-bottom: 90px;
  padding: 22px 24px;
  border: 1px solid rgba(255, 122, 168, 0.28);
  border-left: 3px solid var(--rose);
  border-radius: 8px;
  background: rgba(255, 122, 168, 0.08);
}

.disclaimer h2 {
  margin-bottom: 10px;
  font-size: 18px;
}

.disclaimer p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.footer {
  display: grid;
  gap: 8px;
  padding: 32px 0 46px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.footer p {
  margin: 0;
}

.footer a {
  color: var(--cyan);
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  max-width: min(360px, calc(100vw - 48px));
  padding: 12px 16px;
  border: 1px solid rgba(130, 247, 177, 0.35);
  border-radius: 8px;
  background: rgba(9, 17, 31, 0.94);
  color: var(--text);
  opacity: 0;
  transform: translateY(12px);
  transition: 180ms ease;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .topbar {
    position: static;
    align-items: flex-start;
    flex-direction: column;
    gap: 16px;
    padding: 18px 0;
  }

  .nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    gap: 28px;
    padding: 42px 0 34px;
  }

  .signal-panel {
    min-height: 190px;
  }

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

@media (max-width: 560px) {
  .site-shell {
    width: min(100% - 24px, 1180px);
  }

  h1 {
    font-size: 50px;
  }

  .notice,
  .service-link {
    grid-template-columns: 1fr;
  }

  .hero-actions a,
  .copy-btn {
    width: 100%;
  }
}