/* Template 1: Modern Minimal Dark
 * A clean, minimalist dark theme with smooth animations
 */

:root {
  /* Dark color palette with Dracula-inspired code background */
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  --accent-color: #58a6ff;
  --accent-hover: #79b8ff;
  --border-color: #30363d;
  --code-bg: #282a36; /* Dracula background */
  --success-color: #3fb950;
  --warning-color: #d29922;
  
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
  --font-mono: 'Fira Code', 'JetBrains Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  
  /* Layout */
  --max-width: 1200px;
  --sidebar-width: 280px;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

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

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  font-weight: 600;
  line-height: 1.25;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }

p {
  margin-bottom: var(--space-md);
  color: var(--text-secondary);
}

/* Header & Navigation */
.site-header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: var(--space-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.header-wrapper {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
}

.site-title:hover {
  color: var(--accent-color);
  text-decoration: none;
}

.site-nav {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
}

.site-nav a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.site-nav a:hover {
  color: var(--text-primary);
  text-decoration: none;
}

/* Mobile Menu */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: var(--space-sm);
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }
  
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-secondary);
    flex-direction: column;
    padding: var(--space-md);
    border-bottom: 1px solid var(--border-color);
  }
  
  .site-nav.active {
    display: flex;
  }
}

/* Main Content */
.main-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
}

/* Post List */
.post-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.post-item {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: var(--space-lg);
  transition: transform 0.2s ease, border-color 0.2s ease;
  display: flex;
  flex-direction: column;
}

.post-item:hover {
  transform: translateY(-2px);
  border-color: var(--accent-color);
}

.post-title {
  font-size: 1.25rem;
  margin: 0 0 var(--space-sm) 0;
}

.post-meta {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: var(--space-sm);
}

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

/* Tags */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.tag {
  background-color: var(--bg-tertiary);
  color: var(--accent-color);
  padding: var(--space-xs) var(--space-sm);
  border-radius: 16px;
  font-size: 0.75rem;
  border: 1px solid var(--border-color);
  transition: background-color 0.2s ease;
}

.tag:hover {
  background-color: var(--accent-color);
  color: var(--bg-primary);
  text-decoration: none;
}

/* Category Filter */
.category-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
  padding: var(--space-md);
  background-color: var(--bg-secondary);
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.category-btn {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: var(--space-sm) var(--space-md);
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.875rem;
  transition: all 0.2s ease;
}

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

/* Article Page */
.article-header {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border-color);
}

.article-title {
  font-size: 2.5rem;
  margin: 0 0 var(--space-md) 0;
}

.article-meta {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.article-content {
  font-size: 1.0625rem;
  line-height: 1.75;
}

.article-content h2 {
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-color);
}

/* Code Blocks */
pre, code {
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

code {
  background-color: #44475a; /* Dracula current line */
  padding: 0.2em 0.4em;
  border-radius: 4px;
  color: #ff79c6; /* Dracula pink */
}

pre {
  background-color: var(--code-bg);
  padding: var(--space-md);
  border-radius: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid rgba(255, 255, 255, 0.1);
  max-width: 100%;
  white-space: pre;
  word-wrap: normal;
}

pre code {
  background: none;
  padding: 0;
  color: #f8f8f2; /* Dracula foreground */
}

/* Tables */
/* Wrapper for horizontal scrolling on mobile */
.table-wrapper {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: var(--space-lg) 0;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
}

.table-wrapper table {
  margin: 0;
  border: none;
  border-radius: 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-lg) 0;
  background-color: var(--bg-secondary);
  border-radius: 8px;
  overflow: hidden;
}

th, td {
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

th {
  background-color: var(--bg-tertiary);
  font-weight: 600;
}

tr:last-child td {
  border-bottom: none;
}

/* Timeline View */
.timeline {
  position: relative;
  padding-left: var(--space-xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-color), var(--bg-tertiary));
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-xl);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-xl) + 4px);
  top: 6px;
  width: 10px;
  height: 10px;
  background-color: var(--accent-color);
  border-radius: 50%;
  border: 2px solid var(--bg-primary);
}

.timeline-date {
  color: var(--accent-color);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--space-xs);
}

/* Footer */
.site-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: var(--space-xl) 0;
  margin-top: var(--space-2xl);
}

.footer-wrapper {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  text-align: center;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-md);
}

/* Search Box */
.search-container {
  margin-bottom: var(--space-xl);
}

.search-input {
  width: 100%;
  padding: var(--space-md);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 1rem;
  transition: border-color 0.2s ease;
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-color);
}

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

/* Hero Section */
.hero {
  text-align: center;
  padding: var(--space-2xl) 0;
  margin-bottom: var(--space-xl);
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
  color: var(--accent-color); /* Fallback for browsers without background-clip support */
  background: linear-gradient(135deg, var(--accent-color), var(--success-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  .article-title {
    font-size: 1.75rem;
  }
  
  .post-list {
    grid-template-columns: 1fr;
  }
  
  /* Ensure code blocks scroll horizontally on mobile */
  .article-content,
  .main-content {
    overflow-x: hidden;
  }
  
  .article-content pre,
  .article-content .highlight {
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

/*
 * Tabbed Code Blocks - Button-based implementation
 *
 * Simple JavaScript-driven tabs that work in all browsers.
 * Uses button elements instead of radio inputs for better compatibility.
 */
.code-tabs {
  margin: var(--space-lg) 0;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
}

/* Tab buttons container */
.code-tabs .tab-buttons {
  display: flex;
  background-color: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  overflow-x: auto;
  gap: 0;
}

/* Tab buttons */
.code-tabs .tab-button {
  padding: var(--space-sm) var(--space-md);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.2s ease;
  white-space: nowrap;
  user-select: none;
}

.code-tabs .tab-button:hover {
  color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.05);
}

/* Active tab button styles */
.code-tabs .tab-button.active {
  color: var(--accent-color);
  border-bottom-color: var(--accent-color);
  background-color: rgba(88, 166, 255, 0.1);
}

.code-tabs .tab-button[data-tab="java"].active {
  color: #58a6ff;
  border-bottom-color: #58a6ff;
  background-color: rgba(88, 166, 255, 0.1);
}

.code-tabs .tab-button[data-tab="scala"].active {
  color: #ff5555;
  border-bottom-color: #ff5555;
  background-color: rgba(255, 85, 85, 0.1);
}

.code-tabs .tab-button[data-tab="kotlin"].active {
  color: #bd93f9;
  border-bottom-color: #bd93f9;
  background-color: rgba(189, 147, 249, 0.1);
}

/* Tab content */
.code-tabs .tab-content {
  display: none;
}

.code-tabs .tab-content.active {
  display: block;
}

.code-tabs .tab-content pre {
  margin: 0;
  border-radius: 0;
  border: none;
}
  content: '';
  display: inline-block;
  width: 12px;
  height: 12px;
  margin-right: 6px;
  border-radius: 2px;
  vertical-align: middle;
}

.code-tabs .tab-labels label[for^="tab-java"]::before {
  background-color: var(--accent-color);
}

.code-tabs .tab-labels label[for^="tab-scala"]::before {
  background-color: #ff5555;
}

.code-tabs .tab-labels label[for^="tab-kotlin"]::before {
  background-color: #bd93f9;
}