* {
  box-sizing: border-box;
}

:root {
  --bg: #020617;
  --bg-dark: #000000;
  --panel: rgba(255, 255, 255, 0.05);
  --panel-strong: rgba(255, 255, 255, 0.08);
  --border: rgba(148, 163, 184, 0.18);
  --border-cyan: rgba(34, 211, 238, 0.38);
  --text: #ffffff;
  --muted: #a7b0c0;
  --cyan: #22d3ee;
  --cyan-strong: #06b6d4;
  --blue-glow: rgba(37, 99, 235, 0.22);
  --shadow-cyan: 0 0 45px rgba(34, 211, 238, 0.14);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg-dark);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

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

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.82);
  border-bottom: 1px solid rgba(34, 211, 238, 0.18);
  backdrop-filter: blur(14px);
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.brand-mark {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: var(--cyan);
  box-shadow: 0 0 24px rgba(34, 211, 238, 0.9);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--muted);
  font-size: 0.95rem;
}

.site-nav a:hover {
  color: var(--cyan);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: white;
}

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(34, 211, 238, 0.18);
  background:
    radial-gradient(circle at 20% 20%, rgba(34, 211, 238, 0.12), transparent 30%),
    radial-gradient(circle at 80% 10%, rgba(37, 99, 235, 0.18), transparent 35%),
    linear-gradient(135deg, #020617 0%, #000 52%, #061427 100%);
}

.hero-glow {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(34, 211, 238, 0.06) 1px, transparent 1px),
    linear-gradient(rgba(34, 211, 238, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 80%);
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
  padding: 110px 0;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 18px;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 26px;
  font-size: clamp(3rem, 7vw, 6.7rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

h2 {
  margin-bottom: 22px;
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

h3 {
  font-size: 1.35rem;
  line-height: 1.2;
}

.hero-text,
.section-heading p,
.split-grid p,
.contact-card p {
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-text {
  max-width: 660px;
  margin-bottom: 34px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 24px;
  border-radius: 18px;
  font-weight: 800;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

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

.btn-primary {
  background: var(--cyan);
  color: #001014;
}

.btn-primary:hover {
  background: #67e8f9;
}

.btn-outline {
  border: 1px solid var(--border);
  color: white;
}

.btn-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.feature-pills {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 46px;
}

.feature-pills span {
  min-height: 76px;
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
  background: var(--panel);
  color: #cbd5e1;
  font-size: 0.95rem;
}

.hero-card {
  border: 1px solid var(--border-cyan);
  border-radius: 30px;
  padding: 28px;
  background: linear-gradient(145deg, rgba(34, 211, 238, 0.08), rgba(37, 99, 235, 0.14));
  box-shadow: var(--shadow-cyan);
}

.system-card {
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 28px;
  background: rgba(0, 0, 0, 0.76);
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding-bottom: 22px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--border);
}

.card-top small {
  display: block;
  margin-top: 5px;
  color: var(--cyan);
}

.status-light {
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  border-radius: 999px;
  background: var(--cyan);
  box-shadow: 0 0 22px rgba(34, 211, 238, 0.9);
}

.card-item {
  margin-top: 16px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--panel);
}

.card-item h3 {
  margin-bottom: 8px;
  color: var(--cyan);
  font-size: 1.05rem;
}

.card-item p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.section {
  padding: 96px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 54px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.service-card {
  min-height: 240px;
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: 28px;
  background: var(--panel);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-cyan);
  background: var(--panel-strong);
}

.service-card.featured {
  border-color: var(--border-cyan);
  box-shadow: var(--shadow-cyan);
}

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

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

.split-section {
  border-top: 1px solid rgba(148, 163, 184, 0.12);
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
  background: linear-gradient(90deg, rgba(8, 145, 178, 0.09), rgba(30, 64, 175, 0.08));
}

.split-grid {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 70px;
  align-items: center;
}

.check-list {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  color: #dbeafe;
}

.check-list li {
  position: relative;
  margin: 14px 0;
  padding-left: 30px;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--cyan);
  box-shadow: 0 0 16px rgba(34, 211, 238, 0.75);
}

.focus-card {
  padding: 36px;
  border: 1px solid var(--border-cyan);
  border-radius: 30px;
  background: rgba(0, 0, 0, 0.65);
  box-shadow: var(--shadow-cyan);
}

.bar-group {
  margin-top: 28px;
}

.bar-label {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 10px;
  color: #dbeafe;
  font-size: 0.9rem;
}

.bar {
  height: 12px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.18);
}

.bar span {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: var(--cyan);
  box-shadow: 0 0 18px rgba(34, 211, 238, 0.55);
}

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

.contact-card {
  max-width: 920px;
  margin: 0 auto;
  padding: 58px 38px;
  border: 1px solid var(--border-cyan);
  border-radius: 34px;
  background:
    radial-gradient(circle at 50% 0%, rgba(34, 211, 238, 0.13), transparent 38%),
    linear-gradient(145deg, rgba(34, 211, 238, 0.07), rgba(37, 99, 235, 0.08));
  box-shadow: var(--shadow-cyan);
}

.contact-card p {
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 34px;
}

.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.12);
  padding: 30px 0;
  color: #94a3b8;
  font-size: 0.92rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.footer-inner p {
  margin: 0;
}

@media (max-width: 920px) {
  .nav-toggle {
    display: inline-block;
  }

  .site-nav {
    position: absolute;
    left: 20px;
    right: 20px;
    top: 82px;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    padding: 22px;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: rgba(0, 0, 0, 0.95);
  }

  .site-nav.open {
    display: flex;
  }

  .hero-grid,
  .split-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    padding: 82px 0;
  }

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

@media (max-width: 620px) {
  .container {
    width: min(100% - 28px, 1120px);
  }

  .hero-grid {
    padding: 68px 0;
  }

  .feature-pills,
  .services-grid {
    grid-template-columns: 1fr;
  }

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

  .btn {
    width: 100%;
  }

  .footer-inner {
    flex-direction: column;
  }

  .bar-label {
    flex-direction: column;
    gap: 2px;
  }
}