/* Shared styles for per-feature detail pages under /features/<slug>/ */
:root {
  --bg-void: #030508; --bg-primary: #0a0f1a; --bg-secondary: #111827; --bg-card: #161e2e;
  --accent-primary: #00d4ff; --accent-secondary: #f59e0b;
  --text-primary: #f8fafc; --text-secondary: #94a3b8; --text-tertiary: #64748b;
  --border-subtle: rgba(255, 255, 255, 0.06);
  --space-xs: 0.25rem; --space-sm: 0.5rem; --space-md: 1rem; --space-lg: 1.5rem;
  --space-xl: 2rem; --space-2xl: 3rem; --space-3xl: 4rem;
  --font-display: 'Outfit', sans-serif; --font-body: 'Space Grotesk', sans-serif; --font-mono: 'JetBrains Mono', monospace;
  --max-width: 760px; --transition-base: all 0.2s ease;
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --cat-repair: #c66fa8;
  --cat-tonal: #f59e0b;
  --cat-dynamics: #40e89c;
  --cat-loudness: #ff7676;
  --cat-stereo: #00d4ff;
  --cat-diagnostics: #a78bfa;
  --cat-workflow: #94a3b8;
  --cat-output: #ffd166;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--bg-void); color: var(--text-primary); font-family: var(--font-body); -webkit-font-smoothing: antialiased; line-height: 1.65; }
a { color: inherit; text-decoration: none; }

.nav {
  max-width: var(--max-width); margin: 0 auto;
  padding: var(--space-lg) var(--space-xl) 0;
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--font-mono); font-size: 0.85rem;
}
.nav-back { color: var(--text-secondary); transition: var(--transition-base); }
.nav-back:hover { color: var(--accent-primary); }
.nav-brand { color: var(--text-tertiary); letter-spacing: 0.10em; text-transform: uppercase; }

article {
  max-width: var(--max-width); margin: 0 auto;
  padding: var(--space-2xl) var(--space-xl) var(--space-3xl);
}
.article-header { margin-bottom: var(--space-2xl); }
.article-label {
  font-family: var(--font-mono); font-size: 0.78rem;
  color: var(--accent-primary); text-transform: uppercase;
  letter-spacing: 0.12em; margin-bottom: var(--space-md);
}
.article-title {
  font-family: var(--font-display); font-size: clamp(2rem, 4.2vw, 2.8rem);
  font-weight: 800; line-height: 1.2; letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
}
.article-meta {
  font-family: var(--font-mono); font-size: 0.82rem; color: var(--text-secondary);
  display: flex; gap: var(--space-md); flex-wrap: wrap; align-items: center;
}
.article-meta .sep { color: var(--text-tertiary); }
.article-meta .category {
  padding: 2px 10px; border-radius: 4px;
  background: rgba(255, 255, 255, 0.04);
  text-transform: uppercase; letter-spacing: 0.10em;
}
.article-meta .category[data-category="Repair"] { color: var(--cat-repair); }
.article-meta .category[data-category="Tonal balance"] { color: var(--cat-tonal); }
.article-meta .category[data-category="Dynamics"] { color: var(--cat-dynamics); }
.article-meta .category[data-category="Loudness"] { color: var(--cat-loudness); }
.article-meta .category[data-category="Stereo"] { color: var(--cat-stereo); }
.article-meta .category[data-category="Diagnostics"] { color: var(--cat-diagnostics); }
.article-meta .category[data-category="Workflow"] { color: var(--cat-workflow); }
.article-meta .category[data-category="Output"] { color: var(--cat-output); }

/* Cover image container — fixed 16:9 aspect ratio so wide screenshots
   (EQ panels, mastering report pages) and tall narrow ones (ToneMap,
   De-Esser strip) both render at a comfortable size. object-fit: contain
   keeps the image undistorted, dark background fills the empty edges. */
.article-cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: var(--space-2xl);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
}
.article-cover img {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
}

.article-body { font-size: 1.05rem; color: var(--text-secondary); }
.article-body p { margin-bottom: var(--space-lg); }
.article-body p strong { color: var(--text-primary); font-weight: 600; }
.article-body h2 {
  font-family: var(--font-display); font-size: 1.4rem; color: var(--text-primary);
  margin: var(--space-2xl) 0 var(--space-md); letter-spacing: -0.01em;
}
.article-body ul { list-style: none; padding: 0; margin: 0 0 var(--space-lg) 0; }
.article-body ul li {
  padding-left: var(--space-lg); position: relative; margin-bottom: var(--space-sm);
}
.article-body ul li::before {
  content: '→'; position: absolute; left: 0; color: var(--accent-primary);
}

.article-cta {
  margin-top: var(--space-2xl); padding-top: var(--space-2xl);
  border-top: 1px solid var(--border-subtle);
  display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-md);
}
.article-cta-btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: #030508; font-family: var(--font-display); font-weight: 700;
  font-size: 0.95rem; letter-spacing: 0.02em;
  padding: 0.85rem 1.6rem; border-radius: 8px; transition: var(--transition-base);
}
.article-cta-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); filter: brightness(1.08); }
.article-cta-note { color: var(--text-tertiary); font-family: var(--font-mono); font-size: 0.82rem; }

footer {
  max-width: var(--max-width); margin: var(--space-2xl) auto 0;
  padding: var(--space-xl); text-align: center;
  color: var(--text-tertiary); font-family: var(--font-mono); font-size: 0.82rem;
  border-top: 1px solid var(--border-subtle);
}
footer a { color: var(--accent-primary); }