:root {
  --bg: #06141c;
  --panel: #0d212b;
  --panel-border: #173544;
  --text: #ebf5f7;
  --muted: #99b2bd;
  --accent: #2fd3df;
  --accent-strong: #19aeb8;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(180deg, #07131a 0%, #0b1b24 100%);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: var(--accent);
}

a:hover,
a:focus {
  color: #7beaf0;
}

.container {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header,
.site-footer {
  background: rgba(4, 12, 16, 0.9);
  border-bottom: 1px solid var(--panel-border);
}

.site-footer {
  border-top: 1px solid var(--panel-border);
  border-bottom: 0;
}

.eyebrow {
  margin: 0;
  padding-top: 1.25rem;
  color: var(--accent);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 1rem 0 1.25rem;
}

.nav-list a {
  text-decoration: none;
  color: var(--text);
}

.nav-list a[aria-current="page"] {
  color: var(--accent);
}

.hero,
.section {
  padding: 4rem 0;
}

.lead {
  max-width: 46rem;
  color: var(--muted);
  font-size: 1.1rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.card {
  padding: 1.5rem;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 0.9rem;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.18);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.button {
  display: inline-block;
  padding: 0.8rem 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--accent);
  color: #042129;
  font-weight: 700;
  text-decoration: none;
}

.button:hover,
.button:focus {
  background: #6eeaf1;
  color: #042129;
}

.button-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--panel-border);
}

.button-secondary:hover,
.button-secondary:focus {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(47, 211, 223, 0.08);
}

.stack > * + * {
  margin-top: 1rem;
}

.section-link {
  margin-top: 2rem;
}

.footer-layout {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0;
  flex-wrap: wrap;
}

@media (max-width: 800px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .hero,
  .section {
    padding: 3rem 0;
  }
}