:root {
  --bg-1: #081120;
  --bg-2: #0f172a;
  --bg-3: #172554;
  --surface: rgba(255, 255, 255, 0.92);
  --surface-soft: rgba(255, 255, 255, 0.08);
  --text: #0f172a;
  --text-soft: #475569;
  --text-inverse: #e2e8f0;
  --accent: #2563eb;
  --accent-2: #7c3aed;
  --line: #dbe4f0;
  --shadow: 0 20px 60px rgba(2, 6, 23, 0.28);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, Arial, Helvetica, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.28), transparent 28%),
    radial-gradient(circle at top right, rgba(124, 58, 237, 0.22), transparent 24%),
    linear-gradient(180deg, var(--bg-1), var(--bg-2) 48%, var(--bg-3));
  min-height: 100vh;
}

.container {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  padding: 24px 0 18px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  background: rgba(15, 23, 42, 0.52);
  backdrop-filter: blur(14px);
}

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

.brand-title {
  color: white;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand-subtitle {
  color: #cbd5e1;
  font-size: 0.95rem;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.nav-links a {
  color: white;
  text-decoration: none;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.hero {
  padding: 30px 0 22px;
}

.hero-panel {
  padding: 30px;
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(255,255,255,0.12), rgba(255,255,255,0.05));
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow);
}

.eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  color: #bfdbfe;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.hero h1 {
  margin: 0;
  color: white;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.08;
}

.subtitle {
  color: #dbeafe;
  margin: 14px 0 0;
  max-width: 760px;
  line-height: 1.75;
  font-size: 1.02rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: white;
  color: #0f172a;
}

.button.secondary {
  background: rgba(255,255,255,0.08);
  color: white;
  border: 1px solid rgba(255,255,255,0.14);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 24px 0 34px;
}

.info-card,
.card {
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.55);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.info-card {
  padding: 22px;
}

.info-card h3 {
  margin: 0 0 10px;
}

.info-card p,
.info-card li,
.card p,
.card li {
  color: var(--text-soft);
  line-height: 1.75;
}

.card {
  padding: 30px;
  margin-bottom: 30px;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  margin: 0 0 10px;
  font-size: 1.7rem;
}

section + section {
  border-top: 1px solid var(--line);
  margin-top: 22px;
  padding-top: 22px;
}

h2,
h3 {
  color: #0f172a;
}

ul, ol {
  padding-left: 20px;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
  background: #eff6ff;
  padding: 2px 7px;
  border-radius: 7px;
}

.highlight-box {
  margin-top: 18px;
  padding: 18px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 18px;
}

.contact-list {
  display: grid;
  gap: 12px;
}

.contact-item {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
}

.site-footer {
  color: var(--text-inverse);
  text-align: center;
  padding: 8px 0 34px;
}

.center-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
}

@media (max-width: 860px) {
  .grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .site-header {
    padding-top: 16px;
  }

  .hero-panel,
  .card,
  .info-card {
    padding: 22px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .nav-links {
    width: 100%;
  }

  .nav-links a {
    flex: 1 1 auto;
    text-align: center;
  }
}