/* ===== Dark Theme Design System ===== */

:root {
  /* Color Palette - Midnight Shadows */
  --bg-primary: #0A0A0B;
  --bg-secondary: #1A1B23;
  --bg-accent: #2A2D3A;
  --bg-hover: #343744;
  
  --text-primary: #F8F9FA;
  --text-secondary: #B8BCC8;
  --text-muted: #6B7280;
  
  --accent-primary: #60A5FA;
  --accent-primary-hover: #93C5FD;
  --accent-secondary: #34D399;
  --accent-secondary-hover: #A7F3D0;
  --accent-warning: #F59E0B;
  
  --border-color: #374151;
  --border-subtle: #1F2937;
  
  /* Typography Scale */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  --text-hero: 3.5rem;
  --text-page-title: 2.5rem;
  --text-section: 1.875rem;
  --text-subsection: 1.25rem;
  --text-body: 1rem;
  --text-small: 0.875rem;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-glow: 0 0 20px rgba(96, 165, 250, 0.15);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
}

/* ===== Base Styles ===== */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

.dark-theme {
  background: linear-gradient(135deg, var(--bg-primary) 0%, #0F0F10 100%);
  color: var(--text-secondary);
  font-family: var(--font-primary);
  font-size: var(--text-body);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== Typography ===== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 var(--spacing-md) 0;
}

.hero-title {
  font-size: var(--text-hero);
  font-weight: 700;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-lg);
}

.page-title {
  font-size: var(--text-page-title);
  font-weight: 600;
}

.section-title {
  font-size: var(--text-section);
  font-weight: 600;
  margin-bottom: var(--spacing-xl);
}

.subsection-title {
  font-size: var(--text-subsection);
  font-weight: 500;
}

p {
  margin: 0 0 var(--spacing-md) 0;
  color: var(--text-secondary);
}

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

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

/* ===== Layout Components ===== */

.main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
  min-height: calc(100vh - 200px);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ===== Cards & Panels ===== */

.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
}

.card:hover {
  background: var(--bg-accent);
  border-color: var(--border-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.card-compact {
  padding: var(--spacing-lg);
}

/* ===== Buttons & Links ===== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn-primary {
  background: var(--accent-primary);
  color: white;
}

.btn-primary:hover {
  background: #3B82F6;
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}

.btn-secondary {
  background: var(--bg-accent);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--accent-primary);
}

.link {
  color: var(--accent-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.link:hover {
  color: #93C5FD;
  text-decoration: underline;
}

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

.link-muted:hover {
  color: var(--text-secondary);
}

/* ===== Tags & Badges ===== */

.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--bg-accent);
  color: var(--text-secondary);
  font-size: var(--text-small);
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

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

.tag-primary {
  background: rgba(96, 165, 250, 0.1);
  color: var(--accent-primary);
  border-color: rgba(96, 165, 250, 0.2);
}

.tag-success {
  background: rgba(52, 211, 153, 0.1);
  color: var(--accent-secondary);
  border-color: rgba(52, 211, 153, 0.2);
}

.tag-warning {
  background: rgba(245, 158, 11, 0.1);
  color: var(--accent-warning);
  border-color: rgba(245, 158, 11, 0.2);
}

/* ===== Header Styles ===== */

.site-header {
  background: rgba(26, 27, 35, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 4rem;
}

.site-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.site-title:hover {
  color: #c0c0c0;
}

/* ===== Footer Styles ===== */

.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: var(--spacing-2xl) 0;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  color: var(--text-muted);
  transition: all var(--transition-fast);
  border-radius: var(--radius-md);
}

.social-link:hover {
  color: var(--accent-primary);
  background: rgba(96, 165, 250, 0.1);
  transform: translateY(-2px);
}

.social-link svg {
  width: 1.25rem;
  height: 1.25rem;
}

/* ===== Hero Section ===== */

.hero {
  text-align: center;
  padding: var(--spacing-xl) 0;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--spacing-2xl) auto;
  line-height: 1.6;
}

.hero-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-2xl);
}

.hero-nav .link {
  font-size: 1.125rem;
  font-weight: 500;
}

/* ===== Navigation Lists ===== */

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

.nav-item {
  margin-bottom: var(--spacing-sm);
}

/* ===== Content Lists ===== */

.content-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.content-item {
  background: var(--bg-accent);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
}

.content-item:hover {
  background: var(--bg-hover);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.content-item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

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

.content-item-title .link {
  color: var(--text-primary);
}

.content-item-title .link:hover {
  color: var(--accent-primary);
}

.content-item-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  font-size: var(--text-small);
  color: var(--text-muted);
  flex-shrink: 0;
}

.content-item-excerpt {
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
}

.content-item-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.content-item-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

/* ===== Utility Classes ===== */

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.text-center {
  text-align: center;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }
.mb-6 { margin-bottom: var(--spacing-2xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }
.mt-6 { margin-top: var(--spacing-2xl); }

/* ===== Responsive Design ===== */

@media (max-width: 768px) {
  :root {
    --text-hero: 2.5rem;
    --text-page-title: 2rem;
    --text-section: 1.5rem;
  }
  
  .main-content {
    padding: var(--spacing-md);
  }
  
  .hero {
    padding: var(--spacing-xl) 0;
  }
  
  .content-item-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .content-item-meta {
    align-self: stretch;
  }
}

@media (max-width: 480px) {
  .hero-nav {
    gap: var(--spacing-sm);
  }
  
  .social-links {
    gap: var(--spacing-md);
  }
  
  .content-item {
    padding: var(--spacing-lg);
  }
}

/* ===== Style.css Overrides ===== */

/* Override Tailwind Prose dark text colors */
.prose h1,
.prose h2,
.prose h3,
.prose h4,
.prose h5,
.prose h6 {
  color: var(--text-primary) !important;
}

.prose p {
  color: var(--text-secondary) !important;
}

.prose a {
  color: var(--accent-primary) !important;
}

.prose strong {
  color: var(--text-primary) !important;
}

.prose code {
  background-color: var(--bg-accent) !important;
  color: var(--text-primary) !important;
}

.prose blockquote {
  color: var(--text-secondary) !important;
  border-left-color: var(--border-color) !important;
}

/* Override essay card light styling */
.essay-card {
  background: var(--bg-accent) !important;
  border: 1px solid var(--border-color) !important;
  color: var(--text-secondary) !important;
}

.essay-card:hover {
  background: var(--bg-hover) !important;
  border-color: var(--accent-primary) !important;
  transform: translateY(-2px) !important;
  box-shadow: var(--shadow-lg) !important;
}

/* Override tag button light styling */
.tag-button {
  background: var(--bg-accent) !important;
  color: var(--text-secondary) !important;
  border: 1px solid var(--border-subtle) !important;
  transition: all var(--transition-fast) !important;
}

.tag-button:hover {
  background: var(--bg-hover) !important;
  color: var(--text-primary) !important;
  border-color: var(--border-color) !important;
}

.tag-button.active {
  background: var(--accent-primary) !important;
  color: white !important;
  border-color: var(--accent-primary) !important;
}

.tag-button.active:hover {
  background: #3B82F6 !important;
}

/* Override nav-link light styling */
.nav-link.active {
  background: rgba(96, 165, 250, 0.1) !important;
  color: var(--accent-primary) !important;
}

/* Ensure our containers take precedence */
.dark-theme .container {
  max-width: 1200px !important;
  margin: 0 auto !important;
  padding: 0 var(--spacing-md) !important;
}

.dark-theme .container-narrow {
  max-width: 800px !important;
  margin: 0 auto !important;
  padding: 0 var(--spacing-md) !important;
}

/* ===== Print Styles ===== */

@media print {
  .dark-theme {
    background: white !important;
    color: black !important;
  }
  
  .card, .content-item {
    background: white !important;
    border: 1px solid #ccc !important;
    box-shadow: none !important;
  }
  
  .site-header, .site-footer {
    display: none !important;
  }
}