/* ═══════════════════════════════════════════════════════════
   TECH NEWS BLOG — Dark Terminal Theme  (dev.shweta)
   Hacker-editorial: dark hero, electric accents, mono-forward
   ═══════════════════════════════════════════════════════════ */

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

:root {
  /* palette */
  --bg:           #0e1117;      /* near-black base */
  --bg-card:      #161b22;      /* GitHub-dark card */
  --bg-surface:   #1c2333;      /* slightly lighter surface */
  --bg-code:      #0d1117;      /* deep code bg */
  --border:       #30363d;      /* subtle dark border */
  --border-strong:#58a6ff;      /* electric blue border highlight */
  --accent:       #58a6ff;      /* electric blue */
  --accent-2:     #3fb950;      /* terminal green */
  --accent-warm:  #f78166;      /* soft coral for hot takes */
  --text:         #e6edf3;      /* bright readable white */
  --text-muted:   #8b949e;
  --text-light:   #484f58;
  --text-code:    #79c0ff;

  /* type */
  --font-display: 'Share Tech Mono', 'Courier New', monospace;
  --font-body:    'Inter', system-ui, sans-serif;
  --font-mono:    'Share Tech Mono', 'Courier New', monospace;

  /* misc */
  --radius:       6px;
  --shadow:       0 4px 24px rgba(0,0,0,0.5);
  --max-w:        760px;
}

/* ── BASE ────────────────────────────────────────────────── */
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 1rem;
}
a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--accent-2); }

/* ── NAV ─────────────────────────────────────────────────── */
.tn-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.tn-nav-back {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.15s;
}
.tn-nav-back:hover { color: var(--accent); text-decoration: none; }
.tn-nav-logo {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-2);
  letter-spacing: 0.14em;
}

/* ── HERO ────────────────────────────────────────────────── */
.tn-hero {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 72px 2rem 56px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
/* subtle grid overlay */
.tn-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(88,166,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(88,166,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}
.tn-hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  position: relative;
}
.tn-category {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(88,166,255,0.1);
  border: 1px solid rgba(88,166,255,0.35);
  padding: 4px 14px;
  border-radius: 2px;
  margin-bottom: 24px;
}
.tn-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
}
.tn-title .highlight { color: var(--accent); }
.tn-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  font-style: normal;
  font-family: var(--font-body);
  margin-bottom: 28px;
  max-width: 600px;
  margin-inline: auto;
  line-height: 1.65;
}
.tn-meta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px 20px;
  font-size: 0.74rem;
  color: var(--text-light);
  letter-spacing: 0.06em;
  font-family: var(--font-mono);
  border-top: 1px solid var(--border);
  padding-top: 18px;
}
.tn-meta span { display: flex; align-items: center; gap: 5px; }
.tn-meta .dot {
  width: 7px; height: 7px;
  background: var(--accent-2);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 6px var(--accent-2);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{ box-shadow: 0 0 4px var(--accent-2); } 50%{ box-shadow: 0 0 12px var(--accent-2); } }

/* ── TLDR CARD ───────────────────────────────────────────── */
.tn-body {
  max-width: 780px;
  margin: 0 auto;
  padding: 52px 2rem 80px;
}
.tn-tldr {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-2);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 40px;
  box-shadow: var(--shadow);
}
.tn-tldr-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 10px;
}
.tn-tldr ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.tn-tldr ul li {
  font-size: 0.92rem;
  color: var(--text-muted);
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.tn-tldr ul li::before {
  content: '▸';
  color: var(--accent-2);
  flex-shrink: 0;
  font-size: 0.75rem;
}

/* ── ARTICLE TYPOGRAPHY ──────────────────────────────────── */
.tn-article h2 {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--accent);
  margin: 44px 0 14px;
  letter-spacing: 0.08em;
  display: flex;
  align-items: center;
  gap: 10px;
}
.tn-article h2::before {
  content: '//';
  color: var(--text-light);
  font-size: 0.9rem;
}
.tn-article h2:first-child { margin-top: 0; }
.tn-article p {
  margin-bottom: 20px;
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.85;
}
.tn-article strong { color: var(--text); }

/* inline code */
.tn-article code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--text-code);
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
}

/* code block */
.tn-article pre {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-top: 2px solid var(--accent);
  border-radius: var(--radius);
  padding: 20px 24px;
  overflow-x: auto;
  margin: 24px 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-code);
  line-height: 1.6;
}
.tn-article pre code {
  background: none;
  border: none;
  padding: 0;
  color: inherit;
}

/* pull quote / hot take */
.tn-article blockquote {
  margin: 32px 0;
  padding: 18px 22px;
  background: rgba(247,129,102,0.06);
  border-left: 3px solid var(--accent-warm);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--text);
  line-height: 1.75;
}
.tn-article blockquote .label {
  display: block;
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-warm);
  margin-bottom: 8px;
}
.tn-article blockquote cite {
  display: block;
  margin-top: 10px;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-style: normal;
}

/* ── SOURCE / LINK CARD ──────────────────────────────────── */
.tn-sources {
  margin: 36px 0 0;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.tn-sources-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.tn-sources ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.tn-sources ul li a {
  font-size: 0.85rem;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
}
.tn-sources ul li a::before { content: '↗'; font-size: 0.8rem; }
.tn-sources ul li a:hover { color: var(--accent-2); text-decoration: underline; }

/* ── TAGS ────────────────────────────────────────────────── */
.tn-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 32px;
}
.tn-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 10px;
  transition: border-color 0.15s, color 0.15s;
}
.tn-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── FOOTER ──────────────────────────────────────────────── */
.tn-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 28px 2rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-light);
  letter-spacing: 0.08em;
}
.tn-footer a { color: var(--text-muted); }
.tn-footer a:hover { color: var(--accent); text-decoration: none; }

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 600px) {
  .tn-hero  { padding: 52px 1.2rem 40px; }
  .tn-body  { padding: 36px 1.2rem 60px; }
  .tn-nav   { padding: 0 1.2rem; }
  .tn-title { font-size: 1.5rem; }
}

/* ── REDUCED MOTION ──────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}