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

:root {
  --bg: #0b0f14;
  --surface: #121926;
  --surface-strong: #1a2436;
  --text: #f6f7fb;
  --muted: #b2bccd;
  --accent: #4cc3ff;
  --accent-strong: #2d8bff;
  --card-border: rgba(255, 255, 255, 0.08);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
}

body {
  margin: 0;
  font-family: "Segoe UI", "Inter", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

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

.container {
  width: min(1120px, 90%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  background: rgba(11, 15, 20, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--card-border);
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.brand-logo {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: 0 10px 20px rgba(76, 195, 255, 0.2);
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.95rem;
}

.nav a {
  color: var(--muted);
  transition: color 0.2s ease;
}

.nav a:hover,
.nav a:focus {
  color: var(--text);
}

.nav-cta {
  padding: 10px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: var(--text);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  border: 1px solid var(--card-border);
  background: transparent;
  padding: 8px;
  border-radius: 10px;
  color: var(--text);
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  margin: 4px 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.hero {
  padding: 80px 0 40px;
  background: radial-gradient(circle at top left, #142238, var(--bg));
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 48px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.2rem, 3vw, 3rem);
  line-height: 1.2;
  margin-bottom: 16px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  font-size: 0.8rem;
  margin-bottom: 10px;
}

.subhead {
  color: var(--muted);
  margin-bottom: 24px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
}

.btn.secondary {
  border-color: var(--card-border);
  color: var(--text);
}

.hero-card {
  background: var(--surface);
  padding: 28px;
  border-radius: 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--card-border);
}

.hero-card h2 {
  margin-top: 0;
  margin-bottom: 12px;
}

.hero-card ul {
  padding-left: 18px;
  color: var(--muted);
}

.note {
  color: var(--muted);
  font-size: 0.9rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.stat {
  background: var(--surface-strong);
  padding: 20px;
  border-radius: 16px;
  border: 1px solid var(--card-border);
  text-align: center;
}

.stat h3 {
  margin: 0;
  font-size: 2rem;
}

.section {
  padding: 72px 0;
}

.section-muted {
  background: #0f141f;
}

.section-cta {
  background: linear-gradient(135deg, #0f1a2a, #0b0f14);
}

.section h2 {
  font-size: clamp(1.7rem, 2.4vw, 2.3rem);
  margin-bottom: 32px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.stacked-cards {
  display: grid;
  gap: 18px;
}

.card {
  background: var(--surface);
  padding: 24px;
  border-radius: 18px;
  border: 1px solid var(--card-border);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

.card h3 {
  margin-top: 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  align-items: start;
}

.contact-form {
  display: grid;
  gap: 16px;
  background: var(--surface);
  padding: 24px;
  border-radius: 18px;
  border: 1px solid var(--card-border);
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

input,
textarea {
  background: #0f1622;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 10px 12px;
  color: var(--text);
  font-family: inherit;
}

input:focus,
textarea:focus {
  outline: 2px solid rgba(76, 195, 255, 0.4);
  border-color: transparent;
}

.site-footer {
  border-top: 1px solid var(--card-border);
  padding: 24px 0;
  background: #090d12;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-logo {
  width: 28px;
  height: 28px;
  border-radius: 8px;
}

.footer-nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .hero-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

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

  .nav {
    position: absolute;
    top: 100%;
    right: 5%;
    left: 5%;
    background: var(--surface);
    border: 1px solid var(--card-border);
    border-radius: 18px;
    padding: 16px;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .nav.open {
    display: flex;
  }

  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }
}

@media (max-width: 600px) {
  .header-inner {
    padding: 14px 0;
  }

  .hero {
    padding-top: 64px;
  }

  .hero-card {
    padding: 20px;
  }

  .btn {
    width: 100%;
  }
}