/* Y3llowDuck — shared base styles (reset, variables, header, nav, footer)
   Used by index.html and posts.html. */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0d1117;
  --surface:   #161b22;
  --border:    #21262d;
  --text:      #c9d1d9;
  --muted:     #8b949e;
  --accent:    #58a6ff;
  --green:     #3fb950;
  --yellow:    #d29922;
  --red:       #f85149;
  --purple:    #bc8cff;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Sora', sans-serif;
  font-size: 15px;
  line-height: 1.7;
  min-height: 100vh;
}

header {
  border-bottom: 1px solid var(--border);
  padding: 0 32px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  background: rgba(13,17,23,0.92);
  backdrop-filter: blur(8px);
  z-index: 100;
}

.logo {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 16px;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: -0.5px;
}

.logo span { color: var(--green); }

nav { display: flex; gap: 24px; align-items: center; }

nav a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  transition: color .2s;
}

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

footer {
  border-top: 1px solid var(--border);
  padding: 24px 32px;
  text-align: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--muted);
}

footer a { color: var(--muted); text-decoration: none; }
footer a:hover { color: var(--accent); }

@media (max-width: 640px) {
  header { padding: 0 18px; }
  nav { gap: 14px; }
}