/* =============================================
   DEVLOG — Tech Blog Stylesheet
   Theme: Dark terminal-inspired with cyan accent
   ============================================= */

:root {
  --bg: #0d1117;
  --bg-card: #161b22;
  --bg-card-hover: #1c2128;
  --border: #30363d;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --accent: #00d4ff;
  --accent-dim: rgba(0, 212, 255, 0.1);
  --tag-bg: rgba(0, 212, 255, 0.08);
  --tag-text: #00d4ff;
  --code-bg: #0d1117;
  --radius: 8px;
  --font-mono: 'JetBrains Mono', monospace;
  --font-body: 'Inter', sans-serif;
}

[data-theme="light"] {
  --bg: #f5f7fa;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f4f8;
  --border: #d0d7de;
  --text: #1c2128;
  --text-muted: #57606a;
  --accent: #0077cc;
  --accent-dim: rgba(0, 119, 204, 0.08);
  --tag-bg: rgba(0, 119, 204, 0.08);
  --tag-text: #0077cc;
  --code-bg: #f0f4f8;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  transition: background 0.3s, color 0.3s;
}

a { color: inherit; text-decoration: none; }

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---- HEADER ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.logo-bracket {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

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

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

.theme-toggle {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 1rem;
  transition: border-color 0.2s;
}

.theme-toggle:hover { border-color: var(--accent); }

/* ---- HERO ---- */
.hero {
  padding: 5rem 0 3.5rem;
  border-bottom: 1px solid var(--border);
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 1.2rem;
}

.accent { color: var(--accent); }

.hero-sub {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 520px;
}

/* ---- MAIN ---- */
.main-content {
  padding: 3rem 0 5rem;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.section-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
}

.post-count {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 2px 8px;
  border-radius: 20px;
}

/* ---- POSTS GRID ---- */
.posts-grid {
  display: grid;
  gap: 1.5rem;
}

.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}

.post-card:hover {
  border-color: var(--accent);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.post-card.featured {
  border-left: 3px solid var(--accent);
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.9rem;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  background: var(--tag-bg);
  color: var(--tag-text);
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid rgba(0, 212, 255, 0.2);
}

[data-theme="light"] .tag {
  border-color: rgba(0, 119, 204, 0.2);
}

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

.post-title {
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.6rem;
  letter-spacing: -0.3px;
}

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

.post-excerpt {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.2rem;
  line-height: 1.6;
}

.read-more {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s;
}

.read-more:hover { gap: 8px; }

/* ---- POST PAGE ---- */
.post-page {
  padding: 2.5rem 0 5rem;
}

.back-link {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  display: inline-block;
  margin-bottom: 2rem;
  transition: color 0.2s;
}

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

.post-full {
  margin-bottom: 4rem;
}

.post-header {
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.post-full-title {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.8px;
  margin: 1rem 0 0.8rem;
}

.post-full-excerpt {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ---- POST BODY ---- */
.post-body h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 2.5rem 0 1rem;
  color: var(--text);
  letter-spacing: -0.3px;
}

.post-body p {
  color: var(--text-muted);
  margin-bottom: 1.2rem;
  font-size: 0.97rem;
  line-height: 1.75;
}

.post-body code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--accent-dim);
  color: var(--accent);
  padding: 2px 6px;
  border-radius: 4px;
}

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

.post-body pre code {
  background: none;
  padding: 0;
  font-size: 0.85rem;
  color: var(--text);
  line-height: 1.7;
}

.code-comment { color: #6e7681; }
.code-string { color: #a5d6ff; }

[data-theme="light"] .code-string { color: #0550ae; }
[data-theme="light"] .code-comment { color: #8c959f; }

.post-callout {
  display: flex;
  gap: 1rem;
  background: var(--accent-dim);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  margin: 2rem 0;
}

[data-theme="light"] .post-callout {
  border-color: rgba(0, 119, 204, 0.2);
}

.callout-icon { font-size: 1.2rem; flex-shrink: 0; }

.post-callout p {
  margin: 0;
  font-size: 0.9rem;
}

/* ---- MORE POSTS ---- */
.more-posts h3 {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  margin-bottom: 1.2rem;
}

/* ---- FOOTER ---- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

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

.footer-links {
  display: flex;
  gap: 1.2rem;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

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

/* ---- RESPONSIVE ---- */
@media (max-width: 600px) {
  .nav-links { gap: 1rem; }
  .hero { padding: 3rem 0 2.5rem; }
  .post-card { padding: 1.3rem; }
  .footer-inner { flex-direction: column; text-align: center; }
}