/* 
 * Ajax Vale - A place for words
 * Dark, literary, breathing room
 */

/* ============================================
   FOUNDATIONS
   ============================================ */

:root {
  /* Colors - obsidian depths with silver light */
  --bg-deep: #0a0a0b;
  --bg-surface: #111113;
  --bg-elevated: #18181b;
  --bg-hover: #1f1f23;
  
  --text-primary: #e4e4e7;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  
  --accent-silver: #c0c0c8;
  --accent-silver-dim: #8a8a94;
  --accent-silver-glow: rgba(192, 192, 200, 0.1);
  
  --border-subtle: #27272a;
  --border-emphasis: #3f3f46;
  
  /* Typography */
  --font-body: 'Source Serif 4', 'Iowan Old Style', 'Palatino Linotype', Palatino, Georgia, serif;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Layout */
  --content-width: 42rem;
  --page-padding: 1.5rem;
}

/* ============================================
   RESET & BASE
   ============================================ */

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

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

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.7;
  min-height: 100vh;
}

/* Subtle texture - like old paper in darkness */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  opacity: 0.015;
  pointer-events: none;
  z-index: 0;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 var(--space-md) 0;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

h1 {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.5rem;
  margin-top: var(--space-2xl);
}

h3 {
  font-size: 1.25rem;
  margin-top: var(--space-xl);
}

p {
  margin: 0 0 var(--space-lg) 0;
}

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

a:hover {
  color: var(--text-primary);
}

blockquote {
  margin: var(--space-xl) 0;
  padding: var(--space-md) var(--space-lg);
  border-left: 2px solid var(--border-emphasis);
  color: var(--text-secondary);
  font-style: italic;
}

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--bg-elevated);
  padding: 0.15em 0.35em;
  border-radius: 3px;
}

pre {
  background: var(--bg-elevated);
  padding: var(--space-lg);
  border-radius: 6px;
  overflow-x: auto;
  margin: var(--space-xl) 0;
}

pre code {
  background: none;
  padding: 0;
}

hr {
  border: none;
  height: 1px;
  background: var(--border-subtle);
  margin: var(--space-2xl) 0;
}

/* ============================================
   LAYOUT
   ============================================ */

.container {
  position: relative;
  z-index: 1;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--page-padding);
}

/* ============================================
   HEADER
   ============================================ */

.site-header {
  padding: var(--space-2xl) 0;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: var(--space-2xl);
}

.site-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
}

.site-title a {
  color: var(--text-primary);
}

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

.site-nav {
  margin-top: var(--space-md);
}

.site-nav a {
  color: var(--text-muted);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  margin-right: var(--space-lg);
  text-transform: lowercase;
  letter-spacing: 0.02em;
}

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

/* ============================================
   POST LIST
   ============================================ */

.post-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.post-item {
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--border-subtle);
}

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

.post-title {
  font-size: 1.375rem;
  margin-bottom: var(--space-sm);
}

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

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

.post-meta {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.post-excerpt {
  color: var(--text-secondary);
  margin: 0;
}

.post-tags {
  margin-top: var(--space-md);
}

.tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--bg-elevated);
  padding: var(--space-xs) var(--space-sm);
  border-radius: 3px;
  margin-right: var(--space-xs);
  text-transform: lowercase;
}

.tag:hover {
  background: var(--bg-hover);
  color: var(--text-secondary);
}

/* ============================================
   SINGLE POST
   ============================================ */

.post-header {
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--border-subtle);
}

.post-header .post-title {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.post-content {
  font-size: 1.0625rem;
}

.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  margin: var(--space-xl) 0;
}

/* ============================================
   ABOUT PAGE
   ============================================ */

.about-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.about-image {
  width: 140px;
  height: 140px;
  border-radius: 4px;
  object-fit: cover;
  flex-shrink: 0;
}

.about-info h1 {
  margin-bottom: var(--space-sm);
}

.about-links {
  margin-top: var(--space-md);
}

.about-links a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-right: var(--space-lg);
}

.about-links a:hover {
  color: var(--accent-silver);
}

.about-content {
  color: var(--text-secondary);
}

/* ============================================
   ARCHIVE PAGE
   ============================================ */

.archive-filters {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border-subtle);
}

.archive-filters .tag {
  margin-right: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.archive-filters .tag.active {
  background: var(--accent-silver-glow);
  color: var(--accent-silver);
}

/* ============================================
   VINE DIVIDER - subtle flourish
   ============================================ */

.divider-vine {
  display: flex;
  justify-content: center;
  margin: var(--space-2xl) 0;
  opacity: 0.3;
}

.divider-vine svg {
  width: 60px;
  height: 20px;
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  margin-top: var(--space-3xl);
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.site-footer p {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin: 0;
}

/* ============================================
   UTILITIES
   ============================================ */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 640px) {
  html {
    font-size: 16px;
  }
  
  :root {
    --page-padding: 1rem;
  }
  
  h1 {
    font-size: 1.75rem;
  }
  
  .about-header {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .about-links {
    justify-content: center;
  }
}