/* Fonts */
@import url('https://fonts.googleapis.com/css2?family=Source+Sans+3:wght@300;400;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* Palette */
:root {
  --bg: #0f1117;
  --text: #e8eaed;
  --accent: #6470e8;
  --accent-hover: #4f5cd4;
  --muted: #8b92a5;
  --border: #252d3d;
  --surface: #1a2032;
}

/* Base with geometric grid background */
body {
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(100, 112, 232, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(100, 112, 232, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  color: var(--text);
  font-family: 'Source Sans 3', sans-serif;
  font-size: 1.05rem;
  line-height: 1.7;
}

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

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* Navbar */
.navbar {
  background-color: var(--bg) !important;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
}

.navbar-brand {
  color: var(--text) !important;
  font-weight: 700;
}

.nav-link {
  color: var(--muted) !important;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent) !important;
}

/* Headings */
h1, h2, h3, h4 {
  font-weight: 700;
  color: var(--text);
}

/* Code */
code, pre {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9em;
}

pre {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem;
}

/* Muted text */
.text-muted {
  color: var(--muted) !important;
}

/* Tags / badges */
.tag {
  display: inline-block;
  background-color: rgba(100, 112, 232, 0.15);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 12px;
  margin: 2px;
}

/* Hero */
.hero {
  padding: 7rem 2rem 5rem;
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  color: var(--muted);
  margin-bottom: 2rem;
}

.hero-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

/* Buttons */
.btn-primary {
  background-color: var(--accent);
  color: #fff !important;
  padding: 0.5rem 1.4rem;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none !important;
  transition: background-color 0.2s ease;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
}

.btn-secondary {
  background-color: transparent;
  color: var(--accent) !important;
  padding: 0.5rem 1.4rem;
  border-radius: 6px;
  border: 2px solid var(--accent);
  font-weight: 600;
  text-decoration: none !important;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background-color: var(--accent);
  color: #fff !important;
}

/* Section divider */
.section-divider {
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

/* Highlights row */
.highlights {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  padding: 2rem 0 4rem;
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.highlight-item h3 {
  font-size: 1rem;
  color: var(--accent);
  margin-bottom: 0.4rem;
}

.highlight-item p {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

@media (max-width: 768px) {
  .hero h1 { font-size: 2rem; }
  .highlights { grid-template-columns: 1fr; }
}

/* Cards */
.card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  transition: box-shadow 0.2s ease;
}

.card:hover {
  box-shadow: 0 4px 16px rgba(100, 112, 232, 0.15);
}