/* ============================================
   PRASAD GADE — BLOG PAGES
   Reading-optimised typography & layout
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Lora:ital,wght@0,400;0,600;1,400&family=JetBrains+Mono:wght@400;500&display=swap');

/* ---- CSS Variables ---- */
:root {
  --blog-bg: #0e0e0e;
  --blog-surface: #161616;
  --blog-border: rgba(255, 255, 255, 0.07);
  --blog-text: #e8e8e8;
  --blog-text-secondary: #9a9a9a;
  --blog-text-muted: #606060;
  --blog-accent: #00d4ff;
  --blog-accent-rgb: 0, 212, 255;
  --blog-code-bg: #1a1a1a;
  --blog-blockquote-border: #00d4ff;
  --blog-max-width: 700px;
  --blog-font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --blog-font-heading: 'Lora', Georgia, serif;
  --blog-font-mono: 'JetBrains Mono', 'Courier New', monospace;
  --progress-color: #00d4ff;
}

[data-theme="light"] {
  --blog-bg: #fafaf8;
  --blog-surface: #ffffff;
  --blog-border: rgba(0, 0, 0, 0.08);
  --blog-text: #1a1a1a;
  --blog-text-secondary: #444444;
  --blog-text-muted: #888888;
  --blog-accent: #0068a8;
  --blog-accent-rgb: 0, 104, 168;
  --blog-code-bg: #f0f0ee;
  --blog-blockquote-border: #0068a8;
  --progress-color: #0068a8;
}

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

html { font-size: 17px; scroll-behavior: smooth; }

body {
  background: var(--blog-bg);
  color: var(--blog-text);
  font-family: var(--blog-font-body);
  line-height: 1.8;
  transition: background 0.3s ease, color 0.3s ease;
  -webkit-font-smoothing: antialiased;
}

/* ---- Reading Progress Bar ---- */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--progress-color);
  width: 0%;
  z-index: 1000;
  transition: width 0.1s linear;
  box-shadow: 0 0 8px rgba(var(--blog-accent-rgb), 0.6);
}

/* ---- Navigation ---- */
.blog-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px clamp(20px, 5vw, 48px);
  background: var(--blog-bg);
  border-bottom: 1px solid var(--blog-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  gap: 12px;
}

.nav-logo {
  font-size: 14px;
  font-weight: 500;
  color: var(--blog-text-secondary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s;
  white-space: nowrap;
  flex-shrink: 0;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-blogs-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--blog-text-secondary);
  text-decoration: none;
  padding: 5px 12px;
  border: 1px solid var(--blog-border);
  border-radius: 8px;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
  white-space: nowrap;
}

.nav-blogs-link:hover {
  color: var(--blog-accent);
  border-color: rgba(var(--blog-accent-rgb), 0.4);
  background: rgba(var(--blog-accent-rgb), 0.06);
}

.theme-toggle,
.share-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--blog-surface);
  border: 1px solid var(--blog-border);
  border-radius: 8px;
  color: var(--blog-text-secondary);
  font-size: 13px;
  font-family: var(--blog-font-body);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
  white-space: nowrap;
}

.theme-toggle:hover,
.share-btn:hover {
  color: var(--blog-text);
  border-color: rgba(var(--blog-accent-rgb), 0.4);
}

.share-btn.copied {
  color: #22c55e;
  border-color: rgba(34, 197, 94, 0.4);
}

/* ---- Main Layout ---- */
main {
  max-width: var(--blog-max-width);
  margin: 0 auto;
  padding: clamp(16px, 3vw, 32px) clamp(20px, 5vw, 32px);
}

/* ---- Blog Header ---- */
.blog-header {
  margin-bottom: 40px;
}

.blog-categories {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.category-tag {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: rgba(var(--blog-accent-rgb), 0.12);
  color: var(--blog-accent);
  border: 1px solid rgba(var(--blog-accent-rgb), 0.3);
}

.blog-title {
  font-family: var(--blog-font-heading);
  font-size: clamp(24px, 5vw, 38px);
  font-weight: 600;
  line-height: 1.3;
  color: var(--blog-text);
  margin-bottom: 18px;
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--blog-text-muted);
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.blog-meta .author {
  font-weight: 500;
  color: var(--blog-text-secondary);
}

.blog-meta .separator { opacity: 0.4; }

.blog-thumbnail {
  border-radius: 14px;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--blog-surface);
  border: 1px solid var(--blog-border);
}

.blog-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---- Blog Content ---- */
.blog-content {
  font-family: var(--blog-font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--blog-text);
}

.blog-content p {
  margin-bottom: 1.4em;
  text-align: justify;
}

.blog-content li {
  margin-bottom: 0.5em;
  text-align: justify;
}

.blog-content h1,
.blog-content h2,
.blog-content h3,
.blog-content h4 {
  font-family: var(--blog-font-heading);
  font-weight: 600;
  line-height: 1.35;
  color: var(--blog-text);
  margin-top: 2em;
  margin-bottom: 0.65em;
}

.blog-content h1 { font-size: 1.85em; }
.blog-content h2 { font-size: 1.45em; }
.blog-content h3 { font-size: 1.2em; }
.blog-content h4 { font-size: 1.05em; }

.blog-content strong { font-weight: 600; color: var(--blog-text); }
.blog-content em { font-style: italic; }

.blog-content a {
  color: var(--blog-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: opacity 0.2s;
}

.blog-content a:hover { opacity: 0.75; }

.blog-content blockquote {
  margin: 1.6em 0;
  padding: 14px 20px;
  border-left: 3px solid var(--blog-blockquote-border);
  background: rgba(var(--blog-accent-rgb), 0.05);
  border-radius: 0 8px 8px 0;
  font-style: italic;
  color: var(--blog-text-secondary);
}

.blog-content blockquote p { margin-bottom: 0; }

.blog-content code {
  font-family: var(--blog-font-mono);
  font-size: 0.88em;
  background: var(--blog-code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--blog-accent);
  border: 1px solid var(--blog-border);
}

.blog-content pre {
  background: var(--blog-code-bg);
  border: 1px solid var(--blog-border);
  border-radius: 10px;
  padding: 18px 20px;
  overflow-x: auto;
  margin: 1.6em 0;
}

.blog-content pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.875em;
  color: var(--blog-text);
}

.blog-content ul,
.blog-content ol {
  padding-left: 1.6em;
  margin-bottom: 1.4em;
}

.blog-content hr {
  border: none;
  border-top: 1px solid var(--blog-border);
  margin: 2.5em 0;
}

/* ---- Footer ---- */
.blog-footer {
  max-width: var(--blog-max-width);
  margin: 0 auto;
  padding: 32px clamp(20px, 5vw, 32px) 48px;
  border-top: 1px solid var(--blog-border);
}

.human-written-note {
  font-size: 13px;
  color: var(--blog-text-muted);
  margin-bottom: 20px;
  text-align: center;
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  font-size: 14px;
  color: var(--blog-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: opacity 0.2s;
}

.footer-links a:hover { opacity: 0.75; }

/* ---- Responsive ---- */
@media (max-width: 600px) {
  html { font-size: 16px; }
  .blog-nav { padding: 12px 16px; }
  .nav-blogs-link { display: none; }
}