@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --bg:        #0a0a0f;
  --bg-card:   #111118;
  --bg-nav:    rgba(10,10,15,0.92);
  --accent:    #2dd4bf;
  --accent-dim:#1a9e8f;
  --text:      #ccd6f6;
  --text-dim:  #8892b0;
  --text-bright:#e6f1ff;
  --border:    rgba(255,255,255,0.06);
  --font:      'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'SF Mono','Fira Code','Fira Mono','Roboto Mono',monospace;
  --radius:    8px;
  --max-w:     720px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

img { max-width: 100%; height: auto; border-radius: var(--radius); }

/* ===== HEADER / MASTHEAD ===== */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 2rem 0;
  background: var(--bg);
}

/* Thin top bar with nav links */
.site-nav-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}
.site-nav-bar a {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  opacity: 0.6;
  text-decoration: none;
  transition: opacity 0.2s, color 0.2s;
  letter-spacing: 0.04em;
}
.site-nav-bar a:hover { opacity: 1; color: var(--accent); }

/* Centered logo masthead */
.site-masthead {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-bottom: 2rem;
  text-decoration: none;
  gap: 0.6rem;
}
.site-masthead:hover .site-masthead-logo { opacity: 0.85; }
.site-masthead-logo {
  height: 180px;
  width: auto;
  transition: opacity 0.2s;
}
.site-masthead-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.5;
}

/* ===== MAIN LAYOUT ===== */
.site-main {
  max-width: calc(var(--max-w) + 4rem);
  margin: 0 auto;
  padding: 4rem 2rem;
}

/* ===== POST LIST (index) ===== */
.post-feed {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.post-card {
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
  transition: transform 0.2s;
}
.post-card:first-child { padding-top: 0; }
.post-card:last-child { border-bottom: none; }
.post-card:hover { transform: translateX(6px); }

.post-card-title {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 20px;
  font-weight: 600;
  color: var(--text-bright);
  line-height: 1.35;
  transition: color 0.2s;
  margin-bottom: 0.5rem;
}
.post-card-title:hover { color: var(--accent); }
.post-card-title .arrow {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 4px;
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.2s, transform 0.2s;
}
.post-card:hover .post-card-title .arrow {
  opacity: 1;
  transform: translateX(0);
}

.post-card-excerpt {
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.6;
  margin-bottom: 0.75rem;
  padding-left: 30px;
}

.post-card-meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding-left: 30px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  opacity: 0.7;
}

.post-card-tag {
  background: rgba(45,212,191,0.1);
  color: var(--accent);
  border: 1px solid rgba(45,212,191,0.2);
  border-radius: 4px;
  padding: 1px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
}

/* ===== PAGE HEADER ===== */
.page-header {
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 2rem;
}
.page-header h1 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}
.page-header p {
  color: var(--text-dim);
  font-size: 15px;
}

/* ===== SINGLE POST ===== */
.post-full {
  max-width: var(--max-w);
}

.post-full-header {
  margin-bottom: 2.5rem;
}

.post-full-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.post-full-title {
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  font-weight: 700;
  color: var(--text-bright);
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
}

.post-full-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-dim);
  opacity: 0.8;
}

.post-full-image {
  width: 100%;
  margin-bottom: 2.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

/* ===== POST CONTENT ===== */
.post-full-content {
  color: var(--text);
  font-size: 17px;
  line-height: 1.8;
}

.post-full-content h1,
.post-full-content h2,
.post-full-content h3,
.post-full-content h4 {
  color: var(--text-bright);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 2.5rem 0 1rem;
  line-height: 1.3;
}
.post-full-content h2 { font-size: 1.6rem; }
.post-full-content h3 { font-size: 1.3rem; }
.post-full-content h4 { font-size: 1.1rem; }

.post-full-content p { margin-bottom: 1.5rem; }

.post-full-content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.post-full-content strong { color: var(--accent); font-weight: 600; }
.post-full-content em { color: var(--text-bright); }

.post-full-content ul,
.post-full-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
}
.post-full-content li { margin-bottom: 0.5rem; }

.post-full-content blockquote {
  border-left: 3px solid var(--accent);
  padding: 0.75rem 1.5rem;
  margin: 2rem 0;
  background: var(--bg-card);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--text-dim);
  font-style: italic;
}
.post-full-content blockquote p { margin-bottom: 0; }

.post-full-content pre {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  margin: 1.5rem 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
}
.post-full-content code {
  font-family: var(--font-mono);
  font-size: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 6px;
  color: var(--accent);
}
.post-full-content pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--text);
}

.post-full-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 3rem 0;
}

.post-full-content figure { margin: 2rem 0; }
.post-full-content figcaption {
  text-align: center;
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 0.5rem;
  font-family: var(--font-mono);
}

/* ===== POST FOOTER / BACK LINK ===== */
.post-footer {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.post-footer a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-dim);
  transition: color 0.2s, gap 0.2s;
}
.post-footer a:hover { color: var(--accent); gap: 12px; }
.post-footer svg { width: 16px; height: 16px; }

/* ===== SITE FOOTER ===== */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  opacity: 0.6;
}
.site-footer a { color: var(--text-dim); }
.site-footer a:hover { color: var(--accent); }

/* ===== PAGINATION ===== */
.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 13px;
}
.pagination a {
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.pagination a:hover { color: var(--accent-dim); }
.pagination .page-number { color: var(--text-dim); }

/* ===== ERROR PAGE ===== */
.error-page {
  text-align: center;
  padding: 6rem 2rem;
}
.error-code {
  font-size: 6rem;
  font-weight: 700;
  color: var(--accent);
  font-family: var(--font-mono);
  line-height: 1;
  margin-bottom: 1rem;
  opacity: 0.3;
}
.error-page h1 { color: var(--text-bright); margin-bottom: 1rem; }
.error-page p { color: var(--text-dim); margin-bottom: 2rem; }

/* ===== KOENIG EDITOR CARD WIDTHS ===== */
.post-full-content .kg-width-wide {
  margin-left: -4rem;
  margin-right: -4rem;
}
.post-full-content .kg-width-full {
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  width: 100vw;
}
.post-full-content .kg-image-card img { width: 100%; }
.post-full-content .kg-gallery-container { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.post-full-content .kg-gallery-row { display: flex; gap: 0.5rem; flex: 1 1 auto; }
.post-full-content .kg-gallery-image { flex: 1 1 auto; overflow: hidden; }
.post-full-content .kg-gallery-image img { width: 100%; height: 100%; object-fit: cover; }

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
  .site-nav { padding: 0 1rem; }
  .site-nav-links { display: none; }
  .site-main { padding: 2.5rem 1.25rem; }
  .post-full-title { font-size: 1.7rem; }
  .post-full-content { font-size: 16px; }
}