/* blog.css — Public blog styles for AmbientPixels */

:root {
  --blog-bg: #071019;
  --blog-surface: #0d1a2a;
  --blog-border: rgba(255,255,255,0.08);
  --blog-text: rgba(255,255,255,0.88);
  --blog-muted: rgba(255,255,255,0.5);
  --blog-accent: #8A2BE2;
  --blog-accent-soft: rgba(138,43,226,0.15);
  --blog-card-bg: rgba(255,255,255,0.03);
  --blog-max-width: 780px;
  --blog-wide-width: 960px;
}

/* ── Brand Bar ── */
.ap-brand-bar {
  background: rgba(7,16,25,0.95);
  border-bottom: 1px solid var(--blog-border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}

.ap-brand-bar::after {
  content: '';
  display: block;
  height: 2px;
  background: linear-gradient(90deg, #8A2BE2, #60a5fa, #34d399, #fbbf24, #8A2BE2);
  opacity: 0.5;
}

.ap-brand-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0.6rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.ap-brand-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  flex-shrink: 0;
}

.ap-brand-logo img {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  filter: drop-shadow(0 0 6px rgba(138,43,226,0.3));
}

.ap-brand-name {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  letter-spacing: -0.01em;
}

.ap-brand-nav {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.ap-brand-nav a {
  color: var(--blog-muted);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 500;
  transition: color 0.2s;
}

.ap-brand-nav a:hover {
  color: #fff;
}

.ap-brand-nav--active {
  color: var(--blog-accent) !important;
}

/* ── Brand Footer ── */
.ap-footer-logo {
  margin-bottom: 0.6rem;
}

.ap-footer-logo img {
  width: 28px;
  height: 28px;
  border-radius: 5px;
  opacity: 0.6;
  filter: drop-shadow(0 0 4px rgba(138,43,226,0.2));
}

.ap-footer-tagline {
  font-size: 0.75rem;
  color: var(--blog-muted);
  margin-bottom: 0.6rem;
  opacity: 0.7;
}

.ap-footer-links {
  font-size: 0.75rem;
  margin-bottom: 0.5rem;
}

.ap-footer-links a {
  color: var(--blog-muted);
  text-decoration: none;
  transition: color 0.2s;
}

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

.ap-footer-legal {
  font-size: 0.68rem;
  opacity: 0.4;
}

.ap-footer-legal a {
  color: var(--blog-muted);
  text-decoration: none;
}

.ap-footer-legal a:hover {
  color: var(--blog-accent);
}

/* ── Layout ── */
.blog-wrapper {
  background: var(--blog-bg);
  color: var(--blog-text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  min-height: 100vh;
  line-height: 1.6;
}

.blog-container {
  max-width: var(--blog-wide-width);
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.blog-header {
  text-align: center;
  padding: 3rem 0 2rem;
  border-bottom: 1px solid var(--blog-border);
  margin-bottom: 2.5rem;
}

.blog-header h1 {
  font-size: 2rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: #fff;
}

.blog-header h1 i {
  opacity: 0.4;
  margin-right: 0.5rem;
  font-size: 0.85em;
}

.blog-header p {
  color: var(--blog-muted);
  font-size: 1rem;
  margin: 0;
}

.blog-nav {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-top: 1rem;
}

.blog-nav a {
  color: var(--blog-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.2s;
}

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

/* ── Loading / Error ── */
.blog-loading {
  text-align: center;
  padding: 4rem 0;
  color: var(--blog-muted);
  font-size: 0.95rem;
}

.blog-loading i {
  margin-right: 0.4rem;
}

.blog-error {
  text-align: center;
  padding: 4rem 0;
  color: var(--blog-muted);
}

.blog-error h2 {
  font-size: 1.2rem;
  color: #fff;
  margin-bottom: 0.5rem;
}

/* ── Post Index ── */
.blog-grid {
  display: grid;
  gap: 1.5rem;
}

.blog-card {
  display: block;
  background: var(--blog-card-bg);
  border: 1px solid var(--blog-border);
  border-radius: 12px;
  padding: 1.5rem 1.75rem;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.blog-card:hover {
  border-color: rgba(138,43,226,0.3);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(138,43,226,0.1);
}

.blog-card-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: #fff;
  margin: 0 0 0.5rem;
  line-height: 1.3;
}

.blog-card-excerpt {
  color: var(--blog-muted);
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0 0 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card-meta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  font-size: 0.78rem;
  color: var(--blog-muted);
}

.blog-card-meta i {
  margin-right: 0.25rem;
  opacity: 0.6;
}

.blog-kind-badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: var(--blog-accent-soft);
  color: var(--blog-accent);
}

.blog-tag {
  display: inline-block;
  padding: 0.1rem 0.45rem;
  border-radius: 3px;
  font-size: 0.68rem;
  background: rgba(255,255,255,0.06);
  color: var(--blog-muted);
}

/* ── Single Post ── */
.blog-post-header {
  max-width: var(--blog-max-width);
  margin: 0 auto 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--blog-border);
}

.blog-post-title {
  font-size: 2.2rem;
  font-weight: 700;
  color: #fff;
  margin: 0 0 0.75rem;
  line-height: 1.2;
}

.blog-post-meta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  font-size: 0.82rem;
  color: var(--blog-muted);
}

.blog-post-meta i {
  margin-right: 0.25rem;
  opacity: 0.6;
}

/* ── Hero Image ── */
.blog-hero-image {
  margin: 1.5rem 0 0;
  border-radius: 12px;
  overflow: hidden;
  line-height: 0;
}

.blog-hero-image img {
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
  border-radius: 12px;
}

/* ── Card Thumbnail ── */
.blog-card--has-thumb {
  padding: 0;
  overflow: hidden;
}

.blog-card-thumb {
  line-height: 0;
  overflow: hidden;
}

.blog-card-thumb img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform 0.3s;
}

.blog-card--has-thumb:hover .blog-card-thumb img {
  transform: scale(1.03);
}

.blog-card-body {
  padding: 1.25rem 1.5rem 1.5rem;
}

.blog-card:not(.blog-card--has-thumb) .blog-card-body {
  padding: 0;
}

/* ── Markdown Content ── */
.blog-content {
  max-width: var(--blog-max-width);
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--blog-text);
}

.blog-content h1,
.blog-content h2,
.blog-content h3,
.blog-content h4 {
  color: #fff;
  margin: 2rem 0 0.75rem;
  line-height: 1.3;
}

.blog-content h1 { font-size: 1.8rem; }
.blog-content h2 { font-size: 1.4rem; border-bottom: 1px solid var(--blog-border); padding-bottom: 0.4rem; }
.blog-content h3 { font-size: 1.15rem; }

.blog-content p {
  margin: 0 0 1.25rem;
}

.blog-content a {
  color: var(--blog-accent);
  text-decoration: none;
}

.blog-content a:hover {
  text-decoration: underline;
}

.blog-content strong {
  color: #fff;
}

.blog-content ul,
.blog-content ol {
  margin: 0 0 1.25rem;
  padding-left: 1.5rem;
}

.blog-content li {
  margin-bottom: 0.4rem;
}

.blog-content blockquote {
  border-left: 3px solid var(--blog-accent);
  margin: 1.5rem 0;
  padding: 0.75rem 1.25rem;
  background: rgba(138,43,226,0.06);
  border-radius: 0 8px 8px 0;
  color: var(--blog-muted);
  font-style: italic;
}

.blog-content code {
  background: rgba(255,255,255,0.08);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.88em;
  font-family: 'Fira Code', 'Consolas', monospace;
}

.blog-content pre {
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--blog-border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}

.blog-content pre code {
  background: none;
  padding: 0;
  font-size: 0.85rem;
}

.blog-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

.blog-content th,
.blog-content td {
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--blog-border);
  text-align: left;
}

.blog-content th {
  background: rgba(255,255,255,0.04);
  color: #fff;
  font-weight: 600;
}

.blog-content img {
  max-width: 100%;
  border-radius: 8px;
  margin: 1rem 0;
}

.blog-content hr {
  border: none;
  border-top: 1px solid var(--blog-border);
  margin: 2rem 0;
}

/* ── Back Link ── */
.blog-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--blog-muted);
  text-decoration: none;
  font-size: 0.82rem;
  margin-bottom: 1.5rem;
  transition: color 0.2s;
}

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

/* ── Empty State ── */
.blog-empty {
  text-align: center;
  padding: 4rem 0;
  color: var(--blog-muted);
  font-size: 0.95rem;
}

.blog-empty i {
  font-size: 2.5rem;
  opacity: 0.3;
  display: block;
  margin-bottom: 1rem;
}

/* ── Footer ── */
.blog-footer {
  text-align: center;
  padding: 2rem 0;
  margin-top: 3rem;
  border-top: 1px solid var(--blog-border);
  font-size: 0.78rem;
  color: var(--blog-muted);
}

.blog-footer a {
  color: var(--blog-accent);
  text-decoration: none;
}

.blog-footer a:hover {
  text-decoration: underline;
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .ap-brand-inner {
    flex-direction: column;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
  }

  .ap-brand-nav {
    gap: 0.8rem;
    flex-wrap: wrap;
    justify-content: center;
  }

  .ap-brand-nav a {
    font-size: 0.72rem;
  }

  .ap-brand-name {
    font-size: 0.9rem;
  }

  .blog-container {
    padding: 1.5rem 1rem 3rem;
  }

  .blog-header {
    padding: 2rem 0 1.5rem;
  }

  .blog-header h1 {
    font-size: 1.5rem;
  }

  .blog-post-title {
    font-size: 1.6rem;
  }

  .blog-content {
    font-size: 1rem;
  }

  .blog-card {
    padding: 1.25rem;
  }

  .blog-card-title {
    font-size: 1.1rem;
  }
}