@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg-primary: #0f0f0f;
  --bg-secondary: #161616;
  --bg-card: #1a1a1a;
  --bg-card-hover: #222222;
  --border: #2a2a2a;
  --text-primary: #e8e8e8;
  --text-secondary: #888;
  --text-muted: #555;
  --accent: #6366f1;
  --accent-glow: rgba(99, 102, 241, 0.15);
  --accent-secondary: #818cf8;
  --gradient-start: #6366f1;
  --gradient-end: #8b5cf6;
  --tag-bg: rgba(99, 102, 241, 0.1);
  --tag-border: rgba(99, 102, 241, 0.3);
  --code-bg: #0d0d0d;
  --code-border: #333;
  --radius: 16px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-hover: 0 8px 40px rgba(0,0,0,0.6);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: var(--accent);
  color: white;
}

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

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

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

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 15, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0;
}

header .nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

header .site-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

nav a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

nav a:hover {
  color: var(--text-primary);
  background: var(--bg-card);
}

nav a.active {
  color: var(--accent);
  background: var(--accent-glow);
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 60px 24px 100px;
}

.home-hero {
  text-align: center;
  padding: 80px 0 60px;
  position: relative;
}

.home-hero::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.home-hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #ffffff 0%, #a5b4fc 50%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.home-hero .subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  font-weight: 400;
}

.home-hero .stats-row {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.home-hero .stat {
  text-align: center;
}

.home-hero .stat .number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}

.home-hero .stat .label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 4px;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  gap: 12px;
  letter-spacing: -0.02em;
}

.section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.section-title .icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-glow);
  border-radius: 8px;
  font-size: 0.9rem;
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.post-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
  opacity: 0;
  transition: var(--transition);
}

.post-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(99, 102, 241, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.post-card:hover::before {
  opacity: 1;
}

.post-card .category-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
  width: fit-content;
}

.category-badge.DevOps { background: rgba(59, 130, 246, 0.12); color: #60a5fa; border: 1px solid rgba(59, 130, 246, 0.25); }
.category-badge.Strategy { background: rgba(168, 85, 247, 0.12); color: #c084fc; border: 1px solid rgba(168, 85, 247, 0.25); }
.category-badge.Security { background: rgba(239, 68, 68, 0.12); color: #f87171; border: 1px solid rgba(239, 68, 68, 0.25); }
.category-badge.Cloud { background: rgba(34, 197, 94, 0.12); color: #4ade80; border: 1px solid rgba(34, 197, 94, 0.25); }
.category-badge.FinOps { background: rgba(251, 191, 36, 0.12); color: #fbbf24; border: 1px solid rgba(251, 191, 36, 0.25); }
.category-badge.Career { background: rgba(236, 72, 153, 0.12); color: #f472b6; border: 1px solid rgba(236, 72, 153, 0.25); }
.category-badge.Development { background: rgba(20, 184, 166, 0.12); color: #2dd4bf; border: 1px solid rgba(20, 184, 166, 0.25); }
.category-badge.Kubernetes { background: rgba(99, 102, 241, 0.12); color: #818cf8; border: 1px solid rgba(99, 102, 241, 0.25); }
.category-badge.Python { background: rgba(16, 185, 129, 0.12); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.25); }

.post-card h2 {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.post-card h2 a {
  color: var(--text-primary);
}

.post-card h2 a:hover {
  color: var(--accent);
}

.post-card .post-meta {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-bottom: 14px;
}

.post-card .post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
  padding-top: 14px;
}

.post-card .tag {
  background: var(--tag-bg);
  border: 1px solid var(--tag-border);
  color: var(--accent-secondary);
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 500;
}

.post-list-page h1 {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
  background: linear-gradient(135deg, #ffffff 0%, #a5b4fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.post-list-page > p {
  color: var(--text-secondary);
  margin-bottom: 48px;
  font-size: 1.05rem;
}

.blog-section {
  padding: 60px 0 0;
}

footer {
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

footer a {
  color: var(--text-secondary);
}

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

.view-all-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.95rem;
  margin-top: 40px;
  padding: 12px 24px;
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 50px;
  transition: var(--transition);
}

.view-all-link:hover {
  background: var(--accent-glow);
  border-color: var(--accent);
  transform: translateX(4px);
  color: var(--accent);
}

@media (max-width: 768px) {
  .home-hero h1 {
    font-size: 2.2rem;
  }

  .home-hero .stats-row {
    gap: 24px;
  }

  .post-grid {
    grid-template-columns: 1fr;
  }

  main {
    padding: 40px 16px 80px;
  }

  .post-list-page h1 {
    font-size: 1.8rem;
  }
}

/* Post detail page styles */
article.post {
  max-width: 720px;
  margin: 0 auto;
  padding: 60px 0;
}

article.post .post-header {
  margin-bottom: 48px;
}

article.post h1 {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #ffffff 0%, #a5b4fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

article.post .post-meta {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

article.post .post-meta .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-muted);
}

article.post .post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

article.post .post-tags .tag {
  background: var(--tag-bg);
  border: 1px solid var(--tag-border);
  color: var(--accent-secondary);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.post-content {
  font-size: 1.05rem;
  line-height: 1.8;
}

.post-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 48px 0 20px;
  letter-spacing: -0.02em;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.post-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 32px 0 16px;
  color: var(--text-primary);
}

.post-content p {
  margin-bottom: 20px;
  color: #c8c8c8;
}

.post-content ul, .post-content ol {
  margin: 0 0 20px 24px;
}

.post-content li {
  margin-bottom: 8px;
  color: #c8c8c8;
}

.post-content a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: rgba(99, 102, 241, 0.3);
  text-underline-offset: 3px;
}

.post-content a:hover {
  text-decoration-color: var(--accent);
}

.post-content code {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.88em;
  color: #a5b4fc;
}

.post-content pre {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: var(--radius-sm);
  padding: 20px;
  overflow-x: auto;
  margin-bottom: 24px;
}

.post-content pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: #e8e8e8;
}

.post-content blockquote {
  border-left: 3px solid var(--accent);
  padding: 16px 20px;
  margin: 24px 0;
  background: var(--accent-glow);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: #b0b0b0;
}

.post-content blockquote p:last-child {
  margin-bottom: 0;
}

.post-content strong {
  font-weight: 700;
  color: var(--text-primary);
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
  font-size: 0.9rem;
}

.post-content table th {
  background: var(--bg-card);
  padding: 10px 16px;
  text-align: left;
  font-weight: 600;
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.post-content table td {
  padding: 10px 16px;
  border: 1px solid var(--border);
  color: #b0b0b0;
}

.post-content table tr:nth-child(even) td {
  background: rgba(255,255,255,0.02);
}

.post-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 40px 0;
}

.post-content input[type="checkbox"] {
  margin-right: 8px;
  accent-color: var(--accent);
}

.post-footer {
  margin-top: 60px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.post-footer .author-card {
  display: flex;
  align-items: center;
  gap: 16px;
}

.post-footer .author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  color: white;
}

.post-footer .author-info .name {
  font-weight: 600;
  font-size: 0.95rem;
}

.post-footer .author-info .desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.post-footer .social-links {
  display: flex;
  gap: 8px;
}

.post-footer .social-links a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: var(--transition);
}

.post-footer .social-links a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 32px;
}

.back-link:hover {
  color: var(--accent);
}

@media (max-width: 640px) {
  article.post h1 {
    font-size: 1.6rem;
  }

  .post-content {
    font-size: 1rem;
  }

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