/*
Theme Name: CBI Custom
Theme URI: https://computerbuilderinfo.com
Author: Gorden Web Design
Author URI: https://gordenwebdesign.com
Description: Custom dark tech theme for Computer Builder Info — PC building guides, hardware reviews, and tech news.
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: cbi
Tags: blog, news, custom-background, custom-logo, custom-menu, featured-images, threaded-comments, translation-ready, block-styles, wide-blocks
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 8.2
*/

/* ========================================
   CSS Custom Properties
   ======================================== */
:root {
  /* Colors */
  --cbi-bg-primary: #0a0a0f;
  --cbi-bg-secondary: #111118;
  --cbi-bg-card: #16161f;
  --cbi-bg-card-hover: #1c1c28;
  --cbi-accent-blue: #3b82f6;
  --cbi-accent-cyan: #06b6d4;
  --cbi-accent-blue-hover: #2563eb;
  --cbi-text-primary: #f1f5f9;
  --cbi-text-secondary: #94a3b8;
  --cbi-text-muted: #64748b;
  --cbi-border: #1e293b;
  --cbi-border-light: #334155;

  /* Typography */
  --cbi-font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --cbi-font-heading: 'Sora', 'Inter', sans-serif;

  /* Spacing */
  --cbi-max-width: 1200px;
  --cbi-sidebar-width: 320px;
  --cbi-gap: 24px;
  --cbi-gap-sm: 16px;
  --cbi-gap-lg: 40px;

  /* Border Radius */
  --cbi-radius: 8px;
  --cbi-radius-lg: 12px;

  /* Transitions */
  --cbi-transition: 0.2s ease;
}

/* ========================================
   Reset & Base
   ======================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--cbi-font-body);
  background-color: var(--cbi-bg-primary);
  color: var(--cbi-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--cbi-accent-blue);
  text-decoration: none;
  transition: color var(--cbi-transition);
}

a:hover, a:focus {
  color: var(--cbi-accent-cyan);
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--cbi-font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--cbi-text-primary);
  margin-bottom: 0.5em;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: 1em;
  color: var(--cbi-text-secondary);
}

/* ========================================
   Layout
   ======================================== */
.cbi-container {
  max-width: var(--cbi-max-width);
  margin: 0 auto;
  padding: 0 var(--cbi-gap-sm);
}

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

.cbi-content-area {
  display: grid;
  grid-template-columns: 1fr var(--cbi-sidebar-width);
  gap: var(--cbi-gap-lg);
  padding: var(--cbi-gap-lg) 0;
  flex: 1;
}

.cbi-content-area.no-sidebar {
  grid-template-columns: 1fr;
}

.cbi-main {
  min-width: 0;
}

/* ========================================
   Header
   ======================================== */
.cbi-header {
  background-color: var(--cbi-bg-secondary);
  border-bottom: 1px solid var(--cbi-border);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.cbi-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--cbi-max-width);
  margin: 0 auto;
  padding: 0 var(--cbi-gap-sm);
}

.cbi-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cbi-logo img {
  max-height: 40px;
  width: auto;
}

.cbi-logo-text {
  font-family: var(--cbi-font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--cbi-text-primary);
}

.cbi-logo-text span {
  color: var(--cbi-accent-blue);
}

/* Navigation */
.cbi-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cbi-nav-menu {
  display: flex;
  list-style: none;
  gap: 4px;
}

.cbi-nav-menu a {
  display: block;
  padding: 8px 16px;
  color: var(--cbi-text-secondary);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--cbi-radius);
  transition: all var(--cbi-transition);
}

.cbi-nav-menu a:hover,
.cbi-nav-menu .current-menu-item a {
  color: var(--cbi-text-primary);
  background-color: var(--cbi-bg-card);
}

.cbi-nav-menu .current-menu-item a {
  color: var(--cbi-accent-blue);
}

/* Header Actions */
.cbi-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cbi-search-toggle {
  background: none;
  border: none;
  color: var(--cbi-text-secondary);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--cbi-radius);
  transition: all var(--cbi-transition);
}

.cbi-search-toggle:hover {
  color: var(--cbi-text-primary);
  background-color: var(--cbi-bg-card);
}

/* Mobile Menu Toggle */
.cbi-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--cbi-text-primary);
  cursor: pointer;
  padding: 8px;
}

/* ========================================
   Hero Section
   ======================================== */
.cbi-hero {
  background: linear-gradient(135deg, var(--cbi-bg-secondary) 0%, var(--cbi-bg-primary) 50%, #0c1222 100%);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cbi-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 30% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 50%, rgba(6, 182, 212, 0.06) 0%, transparent 50%);
  animation: heroGlow 15s ease-in-out infinite;
}

@keyframes heroGlow {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(2%, -2%) rotate(1deg); }
  66% { transform: translate(-1%, 1%) rotate(-1deg); }
}

.cbi-hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
  padding: 0 var(--cbi-gap-sm);
}

.cbi-hero h1 {
  font-size: 3rem;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--cbi-text-primary) 0%, var(--cbi-accent-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cbi-hero p {
  font-size: 1.125rem;
  color: var(--cbi-text-secondary);
  margin-bottom: 32px;
}

.cbi-hero-cta {
  display: inline-block;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--cbi-accent-blue) 0%, var(--cbi-accent-cyan) 100%);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  border-radius: 30px;
  transition: all var(--cbi-transition);
  border: none;
  cursor: pointer;
}

.cbi-hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
  color: #fff;
}

/* ========================================
   Post Cards Grid
   ======================================== */
.cbi-posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--cbi-gap);
  margin-bottom: var(--cbi-gap-lg);
}

.cbi-post-card {
  background-color: var(--cbi-bg-card);
  border-radius: var(--cbi-radius-lg);
  overflow: hidden;
  transition: all var(--cbi-transition);
  border: 1px solid var(--cbi-border);
}

.cbi-post-card:hover {
  transform: translateY(-4px);
  border-color: var(--cbi-border-light);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.cbi-post-card-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

.cbi-post-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

.cbi-post-card-category {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  background: var(--cbi-accent-blue);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 20px;
}

.cbi-post-card-body {
  padding: 20px;
}

.cbi-post-card-title {
  font-size: 1.125rem;
  margin-bottom: 8px;
  line-height: 1.3;
}

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

.cbi-post-card-title a:hover {
  color: var(--cbi-accent-blue);
}

.cbi-post-card-excerpt {
  font-size: 0.875rem;
  color: var(--cbi-text-muted);
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.cbi-post-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--cbi-text-muted);
}

/* ========================================
   Single Post
   ======================================== */
.cbi-single {
  max-width: 800px;
  margin: 0 auto;
}

.cbi-single-header {
  margin-bottom: 32px;
}

.cbi-single-category {
  display: inline-block;
  padding: 4px 12px;
  background: var(--cbi-accent-blue);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  border-radius: 20px;
  margin-bottom: 16px;
}

.cbi-single-title {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.cbi-single-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.875rem;
  color: var(--cbi-text-muted);
}

.cbi-single-thumb {
  margin-bottom: 32px;
  border-radius: var(--cbi-radius-lg);
  overflow: hidden;
}

.cbi-single-thumb img {
  width: 100%;
  height: auto;
}

.cbi-single-content {
  font-size: 1.0625rem;
  line-height: 1.7;
}

.cbi-single-content h2,
.cbi-single-content h3,
.cbi-single-content h4 {
  margin-top: 1.5em;
  margin-bottom: 0.5em;
}

.cbi-single-content p {
  color: var(--cbi-text-secondary);
  margin-bottom: 1.25em;
}

.cbi-single-content ul,
.cbi-single-content ol {
  margin-bottom: 1.25em;
  padding-left: 1.5em;
}

.cbi-single-content li {
  color: var(--cbi-text-secondary);
  margin-bottom: 0.5em;
}

.cbi-single-content blockquote {
  border-left: 4px solid var(--cbi-accent-blue);
  padding: 16px 24px;
  margin: 24px 0;
  background: var(--cbi-bg-card);
  border-radius: 0 var(--cbi-radius) var(--cbi-radius) 0;
  font-style: italic;
}

.cbi-single-content img {
  border-radius: var(--cbi-radius);
  margin: 24px 0;
}

/* Author Box */
.cbi-author-box {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: var(--cbi-bg-card);
  border-radius: var(--cbi-radius-lg);
  margin: 40px 0;
  border: 1px solid var(--cbi-border);
}

.cbi-author-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  flex-shrink: 0;
}

.cbi-author-info h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.cbi-author-info p {
  font-size: 0.875rem;
  color: var(--cbi-text-muted);
}

/* Related Posts */
.cbi-related {
  margin: 40px 0;
}

.cbi-related h3 {
  margin-bottom: 20px;
  font-size: 1.25rem;
}

.cbi-related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--cbi-gap-sm);
}

/* ========================================
   Sidebar
   ======================================== */
.cbi-sidebar {
  min-width: 0;
}

.cbi-widget {
  background: var(--cbi-bg-card);
  border-radius: var(--cbi-radius-lg);
  padding: 24px;
  margin-bottom: var(--cbi-gap);
  border: 1px solid var(--cbi-border);
}

.cbi-widget-title {
  font-size: 1rem;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--cbi-border);
}

/* Search Widget */
.cbi-search-form {
  display: flex;
  gap: 8px;
}

.cbi-search-form input[type="search"] {
  flex: 1;
  padding: 10px 16px;
  background: var(--cbi-bg-secondary);
  border: 1px solid var(--cbi-border);
  border-radius: var(--cbi-radius);
  color: var(--cbi-text-primary);
  font-size: 0.875rem;
  outline: none;
  transition: border-color var(--cbi-transition);
}

.cbi-search-form input[type="search"]:focus {
  border-color: var(--cbi-accent-blue);
}

.cbi-search-form button {
  padding: 10px 16px;
  background: var(--cbi-accent-blue);
  color: #fff;
  border: none;
  border-radius: var(--cbi-radius);
  cursor: pointer;
  font-weight: 600;
  transition: background var(--cbi-transition);
}

.cbi-search-form button:hover {
  background: var(--cbi-accent-blue-hover);
}

/* Category List */
.cbi-widget-categories {
  list-style: none;
}

.cbi-widget-categories li {
  padding: 8px 0;
  border-bottom: 1px solid var(--cbi-border);
}

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

.cbi-widget-categories a {
  display: flex;
  justify-content: space-between;
  color: var(--cbi-text-secondary);
  font-size: 0.875rem;
}

.cbi-widget-categories a:hover {
  color: var(--cbi-accent-blue);
}

/* ========================================
   Footer
   ======================================== */
.cbi-footer {
  background-color: var(--cbi-bg-secondary);
  border-top: 1px solid var(--cbi-border);
  margin-top: auto;
}

.cbi-footer-widgets {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--cbi-gap-lg);
  padding: 60px 0 40px;
  max-width: var(--cbi-max-width);
  margin: 0 auto;
  padding-left: var(--cbi-gap-sm);
  padding-right: var(--cbi-gap-sm);
}

.cbi-footer-widget h3 {
  font-size: 1rem;
  margin-bottom: 16px;
  color: var(--cbi-text-primary);
}

.cbi-footer-widget p,
.cbi-footer-widget a {
  font-size: 0.875rem;
  color: var(--cbi-text-muted);
}

.cbi-footer-widget a:hover {
  color: var(--cbi-accent-blue);
}

.cbi-footer-bottom {
  border-top: 1px solid var(--cbi-border);
  padding: 20px 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--cbi-text-muted);
  max-width: var(--cbi-max-width);
  margin: 0 auto;
  padding-left: var(--cbi-gap-sm);
  padding-right: var(--cbi-gap-sm);
}

/* ========================================
   Pagination
   ======================================== */
.cbi-pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin: 40px 0;
}

.cbi-pagination a,
.cbi-pagination span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  background: var(--cbi-bg-card);
  border: 1px solid var(--cbi-border);
  border-radius: var(--cbi-radius);
  color: var(--cbi-text-secondary);
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--cbi-transition);
}

.cbi-pagination a:hover {
  background: var(--cbi-accent-blue);
  border-color: var(--cbi-accent-blue);
  color: #fff;
}

.cbi-pagination .current {
  background: var(--cbi-accent-blue);
  border-color: var(--cbi-accent-blue);
  color: #fff;
}

/* ========================================
   404 Page
   ======================================== */
.cbi-404 {
  text-align: center;
  padding: 80px 0;
}

.cbi-404 h1 {
  font-size: 6rem;
  color: var(--cbi-accent-blue);
  margin-bottom: 16px;
}

.cbi-404 p {
  font-size: 1.125rem;
  margin-bottom: 32px;
}

/* ========================================
   Comments
   ======================================== */
.cbi-comments {
  margin-top: 40px;
  padding-top: 40px;
  border-top: 1px solid var(--cbi-border);
}

.cbi-comment-list {
  list-style: none;
}

.cbi-comment {
  padding: 20px;
  background: var(--cbi-bg-card);
  border-radius: var(--cbi-radius);
  margin-bottom: 16px;
}

.cbi-comment-author {
  font-weight: 700;
  margin-bottom: 4px;
}

.cbi-comment-date {
  font-size: 0.8rem;
  color: var(--cbi-text-muted);
  margin-bottom: 12px;
}

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

  .cbi-sidebar {
    display: none;
  }

  .cbi-posts-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cbi-related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .cbi-nav {
    display: none;
  }

  .cbi-menu-toggle {
    display: block;
  }

  .cbi-hero h1 {
    font-size: 2rem;
  }

  .cbi-hero {
    padding: 48px 0;
  }

  .cbi-posts-grid {
    grid-template-columns: 1fr;
  }

  .cbi-related-grid {
    grid-template-columns: 1fr;
  }

  .cbi-footer-widgets {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .cbi-single-title {
    font-size: 1.75rem;
  }

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

/* ========================================
   Utilities
   ======================================== */
.screen-reader-text {
  border: 0;
  clip: rect(1px, 1px, 1px, 1px);
  clip-path: inset(50%);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
  word-wrap: !important;
}

.clear::after {
  content: '';
  display: table;
  clear: both;
}