/*
Theme Name: DevBlog Pro
Theme URI: https://github.com/devblog-pro
Author: DevBlog Team
Author URI: https://devblog-pro.com
Description: A modern, developer-friendly WordPress theme designed for tech blogs and articles. Features clean typography, syntax highlighting, responsive design, dark/light mode, and optimized for code-heavy content. Perfect for developers, tech writers, and programming blogs.
Requires at least: 6.0
Tested up to: 6.4
Requires PHP: 7.4
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: devblog-pro
Tags: blog, developer, programming, code, syntax-highlighting, responsive, dark-mode, modern, clean, tech, articles
*/

/* CSS Custom Properties for Theme Colors */
:root {
  /* Light mode colors */
  --primary-color: #2563eb;
  --secondary-color: #64748b;
  --accent-color: #f59e0b;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  
  /* Background colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-code: #1e293b;
  
  /* Text colors */
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --text-inverse: #ffffff;
  
  /* Border colors */
  --border-light: #e2e8f0;
  --border-medium: #cbd5e1;
  --border-dark: #94a3b8;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Monaco', 'Cascadia Code', monospace;
  --font-serif: 'Merriweather', Georgia, serif;
  
  /* 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;
  
  /* Border radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
}

/* Dark mode colors */
[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-code: #0f172a;
  
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  --text-inverse: #1e293b;
  
  --border-light: #334155;
  --border-medium: #475569;
  --border-dark: #64748b;
}

/* Reset and base styles */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  margin: 0;
  padding: 0;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 var(--space-md) 0;
  color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

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

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

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

/* Code styling */
code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background-color: var(--bg-tertiary);
  padding: 0.125rem 0.25rem;
  border-radius: var(--radius-sm);
  color: var(--error-color);
}

pre {
  font-family: var(--font-mono);
  background-color: var(--bg-code);
  color: var(--text-inverse);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: var(--space-lg) 0;
  box-shadow: var(--shadow-md);
}

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

/* Blockquotes */
blockquote {
  border-left: 4px solid var(--primary-color);
  padding-left: var(--space-lg);
  margin: var(--space-lg) 0;
  font-style: italic;
  color: var(--text-secondary);
  background-color: var(--bg-secondary);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
}

/* Lists */
ul, ol {
  padding-left: var(--space-lg);
  margin: 0 0 var(--space-md) 0;
}

li {
  margin-bottom: var(--space-sm);
  color: var(--text-secondary);
}

/* Images */
img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

/* Container and layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.content-wrapper {
  max-width: 800px;
  margin: 0 auto;
}

/* Header */
.site-header {
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-light);
  padding: var(--space-lg) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background-color: rgba(255, 255, 255, 0.9);
}

[data-theme="dark"] .site-header {
  background-color: rgba(15, 23, 42, 0.9);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-title {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0;
}

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

/* Navigation */
.main-navigation ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: var(--space-lg);
}

.main-navigation a {
  color: var(--text-secondary);
  font-weight: 500;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.main-navigation a:hover {
  background-color: var(--bg-secondary);
  color: var(--primary-color);
  text-decoration: none;
}

/* Theme toggle button */
.theme-toggle {
  background: none;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

.theme-toggle:hover {
  background-color: var(--bg-secondary);
  color: var(--primary-color);
}

/* Main content */
.site-main {
  padding: var(--space-2xl) 0;
  min-height: calc(100vh - 200px);
}

/* Article styling */
.article-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.article-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.article-meta {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.article-meta span {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.article-title {
  margin-bottom: var(--space-md);
}

.article-title a {
  color: var(--text-primary);
  text-decoration: none;
}

.article-title a:hover {
  color: var(--primary-color);
}

.article-excerpt {
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--primary-color);
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
}

.read-more:hover {
  color: var(--accent-color);
  transform: translateX(2px);
}

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

.tag {
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  text-decoration: none;
  transition: all 0.2s ease;
}

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

/* Footer */
.site-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-light);
  padding: var(--space-xl) 0;
  text-align: center;
  color: var(--text-muted);
}

/* Responsive design */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: var(--space-md);
  }
  
  .main-navigation ul {
    flex-direction: column;
    text-align: center;
  }
  
  .container {
    padding: 0 var(--space-sm);
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.5rem; }
  
  .article-card {
    padding: var(--space-lg);
  }
  
  .article-meta {
    flex-direction: column;
    gap: var(--space-sm);
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles */
:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  z-index: 999999;
  padding: var(--space-sm) var(--space-md);
  background-color: var(--primary-color);
  color: var(--text-inverse);
  text-decoration: none;
}

.skip-link:focus {
  left: var(--space-md);
  top: var(--space-md);
}