/*
Theme Name: CryptoBNN Pro
Theme URI: https://cryptobnn.com
Author: CryptoBNN Team
Author URI: https://cryptobnn.com
Description: A modern, responsive WordPress theme designed specifically for cryptocurrency news websites. Features dark mode, customizable colors, and a tech-forward design aesthetic.
Version: 1.0.0
Requires at least: 5.8
Tested up to: 6.4
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: cryptobnn-theme
Tags: blog, news, two-columns, right-sidebar, custom-colors, custom-menu, custom-logo, editor-style, featured-images, flexible-header, footer-widgets, full-width-template, rtl-language-support, theme-options, threaded-comments, translation-ready
*/

/* ========================================
   CSS VARIABLES & DESIGN TOKENS
   ======================================== */
:root {
  /* Colors - Customizable via WordPress Customizer */
  --primary: #00f0ff;
  --primary-dark: #00b8cc;
  --secondary: #ff00ff;
  --accent: #ffed00;
  
  --bg-primary: #0a0e27;
  --bg-secondary: #131729;
  --bg-tertiary: #1a1f3a;
  --bg-glass: rgba(26, 31, 58, 0.7);
  
  --text-primary: #ffffff;
  --text-secondary: #b0b8cc;
  --text-muted: #6b7280;
  
  --border-color: rgba(0, 240, 255, 0.2);
  --border-hover: rgba(0, 240, 255, 0.5);
  
  /* Typography */
  --font-display: 'Orbitron', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Fira Code', monospace;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  /* Effects */
  --shadow-sm: 0 2px 8px rgba(0, 240, 255, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 240, 255, 0.15);
  --shadow-lg: 0 8px 32px rgba(0, 240, 255, 0.2);
  --glow: 0 0 20px rgba(0, 240, 255, 0.3);
  
  --border-radius: 4px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Mode */
body.light-mode {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #e2e8f0;
  --bg-glass: rgba(248, 250, 252, 0.9);
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --border-color: rgba(0, 240, 255, 0.3);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
}

/* ========================================
   BASE STYLES
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(circle at 20% 50%, rgba(0, 240, 255, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255, 0, 255, 0.03) 0%, transparent 50%);
  animation: rotate 30s linear infinite;
  z-index: -1;
  pointer-events: none;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

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

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

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

/* ========================================
   LAYOUT
   ======================================== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.site-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-content {
  flex: 1;
  padding: var(--spacing-xl) 0;
}

.content-area {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: var(--spacing-xl);
}

@media (max-width: 1024px) {
  .content-area { grid-template-columns: 1fr; }
}

/* ========================================
   HEADER
   ======================================== */
.site-header {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  gap: var(--spacing-lg);
}

.site-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  margin: 0;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.main-navigation ul {
  list-style: none;
  display: flex;
  gap: var(--spacing-md);
  margin: 0;
  padding: 0;
}

.main-navigation a {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: var(--transition);
}

.main-navigation a:hover,
.current-menu-item > a {
  color: var(--primary);
}

.header-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.theme-toggle,
.search-toggle,
.mobile-menu-toggle {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.theme-toggle:hover,
.search-toggle:hover {
  background: var(--bg-tertiary);
  border-color: var(--primary);
}

.mobile-menu-toggle { display: none; }

@media (max-width: 768px) {
  .main-navigation ul { display: none; }
  .mobile-menu-toggle { display: flex; }
  .main-navigation.active ul {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    right: var(--spacing-md);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    min-width: 250px;
  }
}

/* ========================================
   POSTS GRID
   ======================================== */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}

.post-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: calc(var(--border-radius) * 2);
  overflow: hidden;
  transition: var(--transition);
}

.post-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.post-thumbnail {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.post-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.post-card:hover .post-thumbnail img {
  transform: scale(1.05);
}

.post-category {
  position: absolute;
  top: var(--spacing-sm);
  left: var(--spacing-sm);
  background: var(--primary);
  color: var(--bg-primary);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  font-family: var(--font-display);
}

.post-content {
  padding: var(--spacing-md);
}

.post-meta {
  display: flex;
  gap: var(--spacing-md);
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: var(--spacing-sm);
  font-family: var(--font-mono);
}

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

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

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

.post-excerpt {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--spacing-md);
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ========================================
   SIDEBAR
   ======================================== */
.sidebar {
  position: sticky;
  top: calc(var(--spacing-xl) + 80px);
}

.widget {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: calc(var(--border-radius) * 2);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.widget-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--primary);
  font-family: var(--font-display);
  text-transform: uppercase;
}

.widget ul {
  list-style: none;
}

.widget ul li {
  padding: var(--spacing-xs) 0;
  border-bottom: 1px solid var(--border-color);
}

.widget ul li:last-child {
  border-bottom: none;
}

.widget ul li a {
  color: var(--text-secondary);
  transition: var(--transition);
}

.widget ul li a:hover {
  color: var(--primary);
  padding-left: var(--spacing-xs);
}

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

.footer-widgets {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-info {
  padding: var(--spacing-lg) 0 0;
  border-top: 1px solid var(--border-color);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* ========================================
   PAGINATION
   ======================================== */
.pagination {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin: var(--spacing-2xl) 0;
}

.pagination a,
.pagination span {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-family: var(--font-display);
  transition: var(--transition);
}

.pagination a:hover,
.pagination .current {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--bg-primary);
}

/* ========================================
   SINGLE POST
   ======================================== */
.single-post-header {
  max-width: 900px;
  margin: 0 auto var(--spacing-2xl);
  text-align: center;
}

.single-post-content {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.125rem;
  line-height: 1.8;
}

.single-post-content img {
  max-width: 100%;
  height: auto;
  border-radius: calc(var(--border-radius) * 2);
  margin: var(--spacing-lg) 0;
}

/* ========================================
   FORMS
   ======================================== */
input[type="text"],
input[type="email"],
input[type="search"],
textarea {
  width: 100%;
  padding: var(--spacing-sm);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  color: var(--text-primary);
  font-family: var(--font-body);
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
}

button,
.button {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--primary);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--border-radius);
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition);
}

button:hover,
.button:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
  .posts-grid { grid-template-columns: 1fr; }
  .footer-widgets { grid-template-columns: 1fr; }
}

/* Accessibility */
.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  clip: rect(0, 0, 0, 0);
  overflow: hidden;
}