:root {
  --bg: #0d1117;
  --bg-secondary: #161b22;
  --text: #c9d1d9;
  --text-muted: #8b949e;
  --accent: #58a6ff;
  --green: #238636;
  --border: #30363d;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", monospace;
  --max-width: 720px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 17px;
}

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

a:hover {
  opacity: 0.8;
}

img {
  max-width: 100%;
}

/* --- Navigation --- */

.nav {
  border-bottom: 1px solid var(--border);
  padding: 1.2rem 2rem;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 100;
}

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

.nav-logo {
  display: flex;
  align-items: center;
}

.logo-icon {
  transition: transform 0.3s ease;
}

.nav-logo:hover .logo-icon {
  transform: rotate(30deg);
}

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

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

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

/* --- Main content --- */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 2rem;
}

/* --- Hero --- */

.hero {
  padding: 5rem 0 3rem;
}

.hero-label {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.2rem;
  letter-spacing: -0.03em;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 540px;
  margin-bottom: 2rem;
}

.btn {
  display: inline-block;
  background: var(--green);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: opacity 0.2s;
}

.btn:hover {
  opacity: 0.9;
  color: #fff;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  margin-left: 0.75rem;
}

/* --- Section --- */

.section {
  padding: 3rem 0;
}

.section-title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

/* --- Blog post list --- */

.post-list {
  list-style: none;
}

.post-item {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}

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

.post-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.post-item h3 {
  margin: 0.3rem 0 0.4rem;
  font-size: 1.2rem;
  font-weight: 600;
}

.post-item h3 a {
  color: var(--text);
}

.post-item h3 a:hover {
  color: var(--accent);
}

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

/* --- Blog post --- */

.post-header {
  margin-bottom: 2rem;
}

.post-header h1 {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.post-meta {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

.post-content h2 {
  font-size: 1.4rem;
  margin: 2rem 0 0.8rem;
  font-weight: 700;
}

.post-content h3 {
  font-size: 1.15rem;
  margin: 1.5rem 0 0.6rem;
  font-weight: 600;
}

.post-content p {
  margin-bottom: 1.2rem;
}

.post-content ul, .post-content ol {
  margin: 0 0 1.2rem 1.5rem;
}

.post-content li {
  margin-bottom: 0.4rem;
}

.post-content code {
  background: var(--bg-secondary);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.88em;
}

.post-content pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.2rem;
  overflow-x: auto;
  margin-bottom: 1.5rem;
}

.post-content pre code {
  background: none;
  padding: 0;
}

.post-content blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  color: var(--text-muted);
  margin: 1.5rem 0;
}

/* --- Services --- */

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.service-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
}

.service-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.service-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* --- Contact --- */

.contact-hero {
  text-align: center;
  margin-bottom: 2rem;
}

.contact-hero h2 {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.contact-tagline {
  color: var(--accent);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.contact-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

.calendly-inline-widget {
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 3rem;
}

.contact-alt {
  border-top: 1px solid var(--border);
  padding-top: 2rem;
  margin-top: 1rem;
}

.contact-alt h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.contact-alt p {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.contact-links {
  list-style: none;
  margin-top: 1rem;
}

.contact-links li {
  margin-bottom: 0.75rem;
  font-size: 1.05rem;
}

/* --- Footer --- */

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

/* --- Page heading --- */

.page-header h1 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.page-header p {
  color: var(--text-muted);
  margin-bottom: 2rem;
}

/* --- Featured Banner --- */

.featured-banner {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  padding: 1.5rem 1.8rem;
}

.featured-label {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.6rem;
}

.featured-banner h3 {
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.5rem;
}

.featured-banner h3 a {
  color: var(--text);
}

.featured-banner h3 a:hover {
  color: var(--accent);
}

.featured-desc {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin: 0;
}

/* --- CTA in posts --- */

.post-content .btn {
  margin-top: 0.5rem;
  margin-bottom: 1.5rem;
}

/* --- Post Footer --- */

.post-footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.post-cta {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  margin-bottom: 2rem;
  text-align: center;
}

.post-cta h3 {
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
}

.post-cta p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.2rem;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.post-nav {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.post-nav-link {
  flex: 1;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color 0.2s;
}

.post-nav-link:hover {
  border-color: var(--accent);
  opacity: 1;
}

.post-nav-next {
  text-align: right;
}

.post-nav-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.3rem;
}

.post-nav-title {
  display: block;
  font-size: 0.9rem;
  color: var(--text);
  font-weight: 500;
}

/* --- Table in posts --- */

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

.post-content th,
.post-content td {
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--border);
  text-align: left;
}

.post-content th {
  background: var(--bg-secondary);
  font-weight: 600;
}

@media (max-width: 600px) {
  .post-nav {
    flex-direction: column;
  }
  .post-nav-next {
    text-align: left;
  }
}

/* --- Responsive --- */

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

  .nav {
    padding: 1rem;
  }

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

  .nav-links {
    gap: 1rem;
  }

  .container {
    padding: 2rem 1.25rem;
  }
}

@media (min-width: 600px) {
  .services-grid {
    grid-template-columns: 1fr 1fr;
  }
}