:root {
  --bg: #0b0c10;
  --bg-secondary: #15161d;
  --text: #c5c6c7;
  --text-bright: #e0e0e0;
  --accent: #66fcf1;
  --accent-dim: #45a29e;
  --border: #1f2833;
  --muted: #6c757d;
  --font-mono: "SF Mono", "Fira Code", Consolas, Monaco, "Courier New", monospace;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.2s;
}

a:hover {
  opacity: 0.8;
}

.container {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.site-title {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-bright);
  letter-spacing: 0.05em;
}

.nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  position: relative;
}

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

/* Main */
.main {
  flex: 1;
  padding: 40px 0;
}

/* Posts list */
.post-list {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.post-item {
  border-bottom: 1px solid var(--border);
  padding-bottom: 30px;
}

.post-title {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.post-title a {
  color: var(--text-bright);
}

.post-meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 12px;
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.sep {
  opacity: 0.5;
}

.meta-link {
  color: var(--accent-dim);
}

.post-excerpt {
  color: var(--text);
  opacity: 0.9;
  margin-bottom: 12px;
  line-height: 1.7;
}

.read-more {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
}

/* Single post / page */
.post-title-single,
.page-title,
.archive-title {
  font-size: 1.8rem;
  color: var(--text-bright);
  margin-bottom: 10px;
  font-weight: 700;
}

.post-content,
.page-content {
  margin-top: 24px;
  line-height: 1.8;
}

.post-content h1,
.post-content h2,
.post-content h3,
.page-content h1,
.page-content h2,
.page-content h3 {
  color: var(--text-bright);
  margin: 32px 0 14px;
  font-weight: 600;
}

.post-content p,
.page-content p {
  margin-bottom: 16px;
}

.post-content ul,
.post-content ol,
.page-content ul,
.page-content ol {
  margin-left: 24px;
  margin-bottom: 16px;
}

.post-content pre,
.page-content pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 16px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-bottom: 16px;
}

.post-content code,
.page-content code {
  background: var(--bg-secondary);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.85em;
}

.post-content blockquote,
.page-content blockquote {
  border-left: 3px solid var(--accent-dim);
  padding-left: 16px;
  margin-left: 0;
  color: var(--muted);
  font-style: italic;
  margin-bottom: 16px;
}

/* Archives */
.archive-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 24px;
}

.archive-item {
  display: flex;
  gap: 16px;
  align-items: baseline;
  font-family: var(--font-mono);
  font-size: 0.95rem;
}

.archive-date {
  color: var(--muted);
  font-size: 0.85rem;
  min-width: 100px;
}

.archive-link {
  color: var(--text-bright);
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
  padding: 20px 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
}

/* Responsive */
@media (max-width: 600px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav {
    gap: 14px;
  }

  .archive-item {
    flex-direction: column;
    gap: 4px;
  }
}