/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0a0a0a;
  --bg-light: #141414;
  --text: #e0e0e0;
  --text-muted: #888;
  --accent: #3b82f6;
  --accent-hover: #60a5fa;
  --border: #222;
  --max-width: 720px;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

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

code, pre {
  font-family: 'JetBrains Mono', monospace;
}

pre {
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}

code {
  background: var(--bg-light);
  padding: 0.15em 0.4em;
  border-radius: 3px;
  font-size: 0.9em;
}

pre code {
  background: none;
  padding: 0;
}

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

/* Navigation */
.nav {
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
}

.nav-brand:hover {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

/* Main content */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 2rem;
  flex: 1;
  width: 100%;
}

/* Homepage hero */
.hero {
  padding: 4rem 0 2rem;
}

.hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.hero .tagline {
  font-size: 1.2rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.hero .intro {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 540px;
  line-height: 1.8;
}

.hero-links {
  margin-top: 2rem;
  display: flex;
  gap: 1rem;
}

.btn {
  display: inline-block;
  padding: 0.6rem 1.4rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.2s;
}

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

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

.btn-outline {
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Page content */
.page-header {
  margin-bottom: 2rem;
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 2rem 0 0.75rem;
}

.content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
}

.content p {
  margin-bottom: 1rem;
}

.content ul, .content ol {
  margin: 0.5rem 0 1rem 1.5rem;
}

.content li {
  margin-bottom: 0.3rem;
}

/* Blog list */
.post-list {
  list-style: none;
}

.post-item {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
}

.post-item:first-child {
  padding-top: 0;
}

.post-date {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
}

.post-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0.25rem 0;
}

.post-title a {
  color: var(--text);
}

.post-title a:hover {
  color: var(--accent);
}

.post-summary {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* Recent posts on homepage */
.recent-posts {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.recent-posts h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.all-posts-link {
  margin-top: 1rem;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 600px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero .tagline {
    font-size: 1rem;
  }

  .nav {
    padding: 0.75rem 1rem;
  }

  .nav-inner {
    flex-direction: column;
    gap: 0.75rem;
  }

  .nav-links {
    gap: 1rem;
  }

  .container {
    padding: 2rem 1.25rem;
  }

  .hero {
    padding: 2rem 0 1rem;
  }

  .hero-links {
    flex-direction: column;
  }

  .btn {
    text-align: center;
  }
}