/* ============================
   Design tokens — dark-first
   ============================ */
:root {
  /* Dark palette (primary) */
  --bg:          #0c060e;
  --bg-alt:      #180c1c;
  --bg-card:     #261e2f;
  --text:        #f0ecf8;
  --text-muted:  #9e94a8;
  --accent:      #8ff36b;   /* firefly green */
  --accent-dark: #6bbb4a;
  --border:      #2e1e3a;
  --code-bg:     #180c1c;
  --tag-bg:      #261e2f;
  --tag-text:    #a0d38d;
  --link:        #8ff36b;
  --link-hover:  #a0d38d;

  --font-serif:  'Lora', Georgia, 'Times New Roman', serif;
  --font-display:'Philosopher', Georgia, serif;
  --font-sans:   'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:   'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;

  --max-width:   720px;
}

/* Light mode — triggered by explicit preference */
@media (prefers-color-scheme: light) {
  :root {
    --bg:          #f5f0f8;
    --bg-alt:      #ede6f5;
    --bg-card:     #e4d9f0;
    --text:        #180c1c;
    --text-muted:  #5a4a6a;
    --accent:      #2d7a0e;
    --accent-dark: #1e5509;
    --border:      #d5c8e2;
    --code-bg:     #ede6f5;
    --tag-bg:      #e4d9f0;
    --tag-text:    #3d6b2a;
    --link:        #2d7a0e;
    --link-hover:  #1e5509;
  }
}

/* ============================
   Reset & base
   ============================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--link-hover);
}

img {
  max-width: 100%;
  height: auto;
}

/* ============================
   Layout
   ============================ */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ============================
   Header
   ============================ */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: 1.25rem 0;
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.site-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.01em;
}

.site-title:hover {
  color: var(--accent);
}

.site-nav {
  display: flex;
  gap: 1.75rem;
}

.site-nav a {
  font-family: var(--font-sans);
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.15s ease;
}

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

/* ============================
   Main content
   ============================ */
.page-content {
  flex: 1;
  padding: 3.5rem 0 6rem;
}

/* ============================
   Home page
   ============================ */
.home-intro {
  margin-bottom: 4rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--border);
}

.home-intro h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 6vw, 2.8rem);
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: 0.01em;
  margin-bottom: 1.25rem;
  color: var(--text);
}

.home-intro p {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 580px;
  line-height: 1.8;
}

.home-intro p + p {
  margin-top: 0.75rem;
}

.home-intro a {
  color: var(--text-muted);
}

.home-intro a:hover {
  color: var(--accent);
}

.home-links {
  margin-top: 1.75rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.home-links a {
  font-size: 0.8rem;
  font-family: var(--font-sans);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  border: 1px solid var(--border);
  padding: 0.45rem 1rem;
  border-radius: 2px;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.home-links a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ============================
   Post list
   ============================ */
.recent-posts h2,
.blog-header h1 {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 2rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.post-list {
  list-style: none;
}

.post-item {
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border);
}

.post-item:last-child {
  border-bottom: none;
}

.post-item time.post-meta,
.post-meta {
  display: block;
  font-size: 0.75rem;
  font-family: var(--font-sans);
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  letter-spacing: 0.04em;
}

.post-item h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
  line-height: 1.35;
  margin-bottom: 0.6rem;
}

.post-item h3 a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.15s;
}

.post-item h3 a:hover {
  color: var(--accent);
}

.post-excerpt {
  font-family: var(--font-serif);
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.post-tags {
  margin-top: 0.5rem;
}

.tag {
  display: inline-block;
  font-size: 0.7rem;
  font-family: var(--font-sans);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--tag-bg);
  color: var(--tag-text);
  padding: 0.15rem 0.6rem;
  border-radius: 2px;
  margin-right: 0.4rem;
  border: 1px solid var(--border);
}

.view-all {
  display: inline-block;
  margin-top: 1.75rem;
  font-size: 0.8rem;
  font-family: var(--font-sans);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
}

.view-all:hover {
  color: var(--accent-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ============================
   Blog listing page
   ============================ */
.blog-header {
  margin-bottom: 0.25rem;
}

/* ============================
   Post / Page prose
   ============================ */
.post-header,
.page-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--border);
}

.post-header h1,
.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 5vw, 2.3rem);
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: 0.01em;
  margin-bottom: 0.85rem;
  color: var(--text);
}

.post-header .post-meta {
  margin-bottom: 0;
}

/* Prose styles for post/page body content */
.prose {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text);
}

.prose h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 400;
  margin: 2.75rem 0 0.85rem;
  letter-spacing: 0.01em;
  line-height: 1.3;
  color: var(--text);
}

.prose h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 400;
  margin: 2.25rem 0 0.65rem;
  line-height: 1.4;
}

.prose p {
  margin-bottom: 1.5rem;
}

.prose a {
  color: var(--link);
}

.prose a:hover {
  color: var(--link-hover);
}

.prose ul,
.prose ol {
  margin: 0 0 1.5rem 1.5rem;
}

.prose li {
  margin-bottom: 0.45rem;
}

.prose blockquote {
  border-left: 2px solid var(--accent);
  padding: 0.25rem 0 0.25rem 1.5rem;
  margin: 2rem 0;
  color: var(--text-muted);
  font-style: italic;
  font-size: 1.1rem;
}

.prose blockquote p {
  margin-bottom: 0;
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--code-bg);
  padding: 0.15em 0.4em;
  border-radius: 3px;
  border: 1px solid var(--border);
  color: var(--accent);
}

.prose pre {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.25rem;
  overflow-x: auto;
  margin: 1.75rem 0;
}

.prose pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.875rem;
  color: var(--text);
}

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

.prose img {
  border-radius: 3px;
  margin: 1.75rem 0;
  border: 1px solid var(--border);
}

/* ============================
   Post footer
   ============================ */
.post-footer {
  margin-top: 3.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border);
  font-size: 0.825rem;
}

.post-footer a {
  font-family: var(--font-sans);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
}

.post-footer a:hover {
  color: var(--accent);
}

/* ============================
   Footer
   ============================ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  margin-top: auto;
  background: var(--bg-alt);
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.site-footer p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.site-footer a {
  color: var(--text-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.site-footer a:hover {
  color: var(--accent);
}

.footer-note {
  opacity: 0.6;
}

/* ============================
   Responsive
   ============================ */
@media (max-width: 600px) {
  html { font-size: 17px; }

  .site-header .container {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }

  .site-nav { gap: 1.25rem; }
}