:root {
  --bg: #040b15;
  --surface: #09182d;
  --surface-light: rgba(12, 32, 56, 0.7);
  --border: rgba(255, 255, 255, 0.08);
  --text: #edf5ff;
  --muted: rgba(237, 245, 255, 0.75);
  --accent: linear-gradient(120deg, #00f7c6, #00b6ff, #0066ff);
  --spectra: linear-gradient(140deg, #b87bff, #8b5cff, #47c4ff);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: radial-gradient(circle at 20% 20%, rgba(16, 80, 120, 0.3), transparent 45%),
    radial-gradient(circle at 80% 0%, rgba(120, 40, 180, 0.35), transparent 55%), var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

h1,
h2,
h3 {
  margin: 0 0 0.6em;
  line-height: 1.2;
}

p {
  margin: 0 0 1em;
  color: var(--muted);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(2, 6, 12, 0.92);
  border-bottom: 1px solid var(--border);
  padding: 1rem clamp(1rem, 4vw, 4rem);
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand-logo {
  width: 70px;
  height: 70px;
  border-radius: 20px;
  box-shadow: 0 10px 50px rgba(0, 246, 229, 0.35);
}

.company-type {
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(237, 245, 255, 0.6);
  margin-bottom: 0.25rem;
}

nav {
  margin-left: auto;
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

nav a {
  font-size: 0.95rem;
  color: rgba(237, 245, 255, 0.8);
  padding-bottom: 0.2rem;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

nav a:hover {
  border-color: rgba(0, 246, 229, 0.7);
  color: #fff;
}

main {
  padding: clamp(2rem, 5vw, 4rem);
  display: flex;
  flex-direction: column;
  gap: clamp(2rem, 4vw, 4rem);
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: clamp(1.5rem, 4vw, 3rem);
  padding: clamp(2rem, 5vw, 4rem);
  border: 1px solid var(--border);
  border-radius: 30px;
  background: var(--surface-light);
  box-shadow: 0 50px 120px rgba(0, 0, 0, 0.35);
}

.hero h2 {
  font-size: clamp(2.2rem, 5vw, 3.1rem);
}

.eyebrow {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(0, 246, 229, 0.8);
  margin-bottom: 1rem;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn.primary {
  background-image: var(--accent);
  color: #031220;
  box-shadow: 0 15px 40px rgba(0, 181, 255, 0.3);
}

.btn.ghost {
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: #fff;
}

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

.hero-card {
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 1.5rem;
  background: rgba(4, 15, 30, 0.7);
}

.hero-card .badge {
  display: inline-flex;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  background-image: var(--accent);
  color: #031220;
  font-weight: 600;
  margin-bottom: 1rem;
}

.hero-card .mt {
  margin-top: 1rem;
}

.intro {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.intro h3 {
  color: #fff;
}

.services {
  border: 1px solid var(--border);
  border-radius: 36px;
  padding: clamp(1.5rem, 4vw, 3rem);
  background: rgba(5, 17, 32, 0.6);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.3);
}

.section-heading {
  max-width: 640px;
  margin-bottom: 2rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.cards article {
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 1.5rem;
  background: rgba(8, 21, 40, 0.9);
  min-height: 220px;
  display: flex;
  flex-direction: column;
}

.cards h3 {
  margin-bottom: 0.8rem;
}

.icon-circle {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: rgba(0, 246, 229, 0.12);
  border: 1px solid rgba(0, 246, 229, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  color: #7fd3ff;
}

.icon-circle svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.spectra {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid rgba(186, 122, 255, 0.3);
  border-radius: 32px;
  background: radial-gradient(circle at top, rgba(186, 122, 255, 0.4), rgba(4, 8, 20, 0.9));
}

.spectra-image img {
  width: min(320px, 80vw);
  margin: 0 auto;
  filter: drop-shadow(0 20px 50px rgba(120, 65, 255, 0.5));
}

.spectra-copy ul {
  padding-left: 1rem;
  margin: 0 0 1.5rem;
  color: var(--muted);
}

.spectra-copy li {
  margin-bottom: 0.4rem;
}

.activities {
  text-align: center;
}

.activity-card {
  border: 1px solid var(--border);
  border-radius: 30px;
  padding: 2rem;
  background: rgba(7, 18, 32, 0.85);
  max-width: 900px;
  margin: 0 auto;
  font-size: 1.1rem;
}

.contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 30px;
  padding: clamp(1.5rem, 4vw, 3rem);
  background: rgba(5, 18, 30, 0.7);
}

.contact-card {
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 1.5rem;
  background: rgba(4, 12, 22, 0.8);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

footer {
  text-align: center;
  padding: 2rem 1rem 3rem;
  color: rgba(237, 245, 255, 0.6);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

@media (max-width: 720px) {
  nav {
    width: 100%;
    justify-content: space-between;
  }
  .site-header {
    justify-content: center;
  }
  .hero,
  .services,
  .spectra,
  .contact {
    padding: 1.5rem;
  }
}