/*
Theme Name: AI-GET Cyber
Theme URI: https://ai-get.ru/blog/
Author: AI-GET
Author URI: https://ai-get.ru/
Description: Minimal cyberpunk/techno theme for AI-GET blog. Fast, clean, accessible.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: ai-get-cyber
*/

:root {
  --color-bg: #0d1117;
  --color-bg-alt: #161b22;
  --color-surface: #21262d;
  --color-border: #30363d;
  --color-text: #c9d1d9;
  --color-text-muted: #8b949e;
  --color-heading: #f0f6fc;
  --color-accent: #58a6ff;
  --color-accent-soft: #388bfd33;
  --color-accent-hover: #79c0ff;
  --color-overlay: rgba(13, 17, 23, 0.85);
  --color-gradient: linear-gradient(135deg, #0d1117 0%, #161b22 50%, #1a1f26 100%);
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --max-width: 1200px;
  --header-height: 60px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-sans); font-size: 16px; line-height: 1.6; color: var(--color-text); background: var(--color-bg); min-height: 100vh; display: flex; flex-direction: column; }

a { color: var(--color-accent); text-decoration: none; transition: color var(--transition-fast); }
a:hover, a:focus { color: var(--color-accent-hover); }
a:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4, h5, h6 { color: var(--color-heading); font-weight: 600; line-height: 1.3; }
button { font-family: inherit; cursor: pointer; }

.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 var(--spacing-md); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.site-header { position: sticky; top: 0; z-index: 100; background: var(--color-bg-alt); border-bottom: 1px solid var(--color-border); height: var(--header-height); backdrop-filter: blur(8px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; gap: var(--spacing-md); }
.site-branding { flex-shrink: 0; }
.site-title { font-size: 1.25rem; font-weight: 700; color: var(--color-heading); display: flex; align-items: center; gap: var(--spacing-xs); }
.site-title a { color: inherit; }
.site-title a:hover { color: var(--color-accent); }
.cyber-icon { width: 28px; height: 28px; fill: var(--color-accent); }

.main-navigation { display: flex; align-items: center; gap: var(--spacing-md); }
.nav-menu { display: flex; list-style: none; gap: var(--spacing-sm); }
.nav-menu a { display: block; padding: var(--spacing-xs) var(--spacing-sm); color: var(--color-text); font-size: 0.9rem; font-weight: 500; border-radius: var(--radius-sm); transition: all var(--transition-fast); }
.nav-menu a:hover, .nav-menu .current-menu-item a { color: var(--color-accent); background: var(--color-accent-soft); }

.header-search { display: flex; align-items: center; gap: var(--spacing-xs); }
.search-form { display: flex; align-items: center; }
.search-field { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 0.4rem 0.75rem; color: var(--color-text); font-size: 0.875rem; width: 180px; transition: all var(--transition-fast); }
.search-field:focus { outline: none; border-color: var(--color-accent); box-shadow: 0 0 0 2px var(--color-accent-soft); }
.search-field::placeholder { color: var(--color-text-muted); }
.search-submit { background: var(--color-accent); color: var(--color-bg); border: none; padding: 0.45rem 0.75rem; border-radius: var(--radius-sm); font-size: 0.875rem; font-weight: 600; margin-left: 4px; transition: background var(--transition-fast); }
.search-submit:hover { background: var(--color-accent-hover); }

.menu-toggle { display: none; background: transparent; border: none; padding: var(--spacing-xs); color: var(--color-text); }
.menu-toggle svg { width: 24px; height: 24px; }
.search-toggle { display: none; background: transparent; border: none; padding: var(--spacing-xs); color: var(--color-text); }
.search-toggle svg { width: 20px; height: 20px; }

.hero-banner { position: relative; min-height: 480px; display: flex; align-items: flex-end; overflow: hidden; background: var(--color-gradient); }
.hero-background { position: absolute; inset: 0; background-size: cover; background-position: center; z-index: 0; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 0%, var(--color-overlay) 60%, var(--color-bg) 100%); z-index: 1; }
.hero-overlay::before { content: ''; position: absolute; inset: 0; background-image: linear-gradient(var(--color-accent-soft) 1px, transparent 1px), linear-gradient(90deg, var(--color-accent-soft) 1px, transparent 1px); background-size: 40px 40px; opacity: 0.15; }
.hero-content { position: relative; z-index: 2; width: 100%; padding: var(--spacing-2xl) 0; }
.hero-meta { display: flex; gap: var(--spacing-sm); margin-bottom: var(--spacing-sm); font-size: 0.85rem; align-items: center; }
.hero-category { background: var(--color-accent); color: var(--color-bg); padding: 0.2rem 0.6rem; border-radius: var(--radius-sm); font-weight: 600; text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.5px; }
.hero-date { color: var(--color-text-muted); }
.hero-title { font-size: clamp(1.75rem, 4vw, 2.5rem); margin-bottom: var(--spacing-sm); max-width: 700px; }
.hero-title a { color: inherit; }
.hero-title a:hover { color: var(--color-accent); }
.hero-excerpt { font-size: 1.1rem; color: var(--color-text-muted); max-width: 600px; margin-bottom: var(--spacing-md); line-height: 1.7; }

.btn { display: inline-flex; align-items: center; gap: var(--spacing-xs); padding: 0.75rem 1.5rem; background: var(--color-accent); color: var(--color-bg); font-weight: 600; border-radius: var(--radius-md); border: none; font-size: 0.95rem; transition: all var(--transition-fast); }
.btn:hover { background: var(--color-accent-hover); color: var(--color-bg); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn:focus-visible { outline: 2px solid var(--color-heading); outline-offset: 2px; }
.btn-outline { background: transparent; color: var(--color-accent); border: 2px solid var(--color-accent); }
.btn-outline:hover { background: var(--color-accent); color: var(--color-bg); }

.blog-description { background: var(--color-bg-alt); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); padding: var(--spacing-xl) 0; text-align: center; }
.blog-description-inner { max-width: 700px; margin: 0 auto; }
.blog-description h2 { font-size: 1.5rem; margin-bottom: var(--spacing-sm); }
.blog-description p { color: var(--color-text-muted); margin-bottom: var(--spacing-md); font-size: 1.05rem; }

.posts-section { padding: var(--spacing-xl) 0; }
.section-title { font-size: 1.5rem; margin-bottom: var(--spacing-lg); display: flex; align-items: center; gap: var(--spacing-sm); }
.section-title::after { content: ''; flex: 1; height: 1px; background: var(--color-border); }
.posts-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--spacing-lg); }

.post-card { background: var(--color-surface); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--color-border); transition: all var(--transition-base); }
.post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--color-accent); }
.post-card-thumbnail { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--color-bg-alt); }
.post-card-thumbnail img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-base); }
.post-card:hover .post-card-thumbnail img { transform: scale(1.05); }
.post-card-thumbnail-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; background: var(--color-gradient); }
.post-card-thumbnail-placeholder svg { width: 48px; height: 48px; opacity: 0.3; fill: var(--color-accent); }
.post-card-content { padding: var(--spacing-md); }
.post-card-meta { display: flex; gap: var(--spacing-sm); font-size: 0.8rem; color: var(--color-text-muted); margin-bottom: var(--spacing-xs); }
.post-card-category { color: var(--color-accent); font-weight: 500; }
.post-card-title { font-size: 1.1rem; margin-bottom: var(--spacing-xs); line-height: 1.4; }
.post-card-title a { color: var(--color-heading); }
.post-card-title a:hover { color: var(--color-accent); }
.post-card-excerpt { font-size: 0.9rem; color: var(--color-text-muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

.posts-list { display: flex; flex-direction: column; gap: var(--spacing-md); }
.post-list-item { display: flex; gap: var(--spacing-md); padding: var(--spacing-md); background: var(--color-surface); border-radius: var(--radius-md); border: 1px solid var(--color-border); transition: all var(--transition-fast); }
.post-list-item:hover { border-color: var(--color-accent); }
.post-list-thumbnail { flex-shrink: 0; width: 120px; height: 80px; border-radius: var(--radius-sm); overflow: hidden; background: var(--color-bg-alt); }
.post-list-thumbnail img { width: 100%; height: 100%; object-fit: cover; }
.post-list-content { flex: 1; min-width: 0; }
.post-list-title { font-size: 1rem; margin-bottom: var(--spacing-xs); }
.post-list-title a { color: var(--color-heading); }
.post-list-title a:hover { color: var(--color-accent); }
.post-list-meta { font-size: 0.8rem; color: var(--color-text-muted); }

.pagination { display: flex; justify-content: center; gap: var(--spacing-xs); margin-top: var(--spacing-xl); flex-wrap: wrap; }
.pagination a, .pagination span { display: inline-flex; align-items: center; justify-content: center; min-width: 40px; height: 40px; padding: 0 var(--spacing-sm); background: var(--color-surface); color: var(--color-text); border: 1px solid var(--color-border); border-radius: var(--radius-sm); font-size: 0.9rem; transition: all var(--transition-fast); }
.pagination a:hover { background: var(--color-accent); color: var(--color-bg); border-color: var(--color-accent); }
.pagination .current { background: var(--color-accent); color: var(--color-bg); border-color: var(--color-accent); }

.search-header { padding: var(--spacing-xl) 0; text-align: center; background: var(--color-bg-alt); border-bottom: 1px solid var(--color-border); }
.search-header h1 { font-size: 1.75rem; margin-bottom: var(--spacing-sm); }
.search-header p { color: var(--color-text-muted); }
.search-query { color: var(--color-accent); }
.no-results { text-align: center; padding: var(--spacing-2xl); color: var(--color-text-muted); }
.no-results h2 { margin-bottom: var(--spacing-md); }

.site-footer { margin-top: auto; background: var(--color-bg-alt); border-top: 1px solid var(--color-border); padding: var(--spacing-xl) 0 var(--spacing-md); text-align: center; }
.footer-links-row { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 0; list-style: none; margin: 0 0 var(--spacing-sm); }
.footer-links-row a { color: var(--color-text-muted); font-size: 0.9rem; }
.footer-links-row a:hover { color: var(--color-accent); }
.footer-separator { margin: 0 var(--spacing-xs); color: var(--color-text-muted); user-select: none; }
.footer-copyright { margin: 0; padding-top: var(--spacing-md); border-top: 1px solid var(--color-border); font-size: 0.85rem; color: var(--color-text-muted); }
.footer-copyright a { color: var(--color-text-muted); }
.footer-copyright a:hover { color: var(--color-accent); }

.main-content { flex: 1; }
.entry-content { max-width: 800px; margin: 0 auto; padding: var(--spacing-xl) var(--spacing-md); }
.entry-content h1, .entry-content h2, .entry-content h3 { margin-top: var(--spacing-lg); margin-bottom: var(--spacing-sm); }
.entry-content p { margin-bottom: var(--spacing-md); }

@media (max-width: 768px) {
  :root { --header-height: 56px; }
  .menu-toggle { display: block; }
  .main-navigation { position: absolute; top: var(--header-height); left: 0; right: 0; background: var(--color-bg-alt); border-bottom: 1px solid var(--color-border); padding: var(--spacing-md); flex-direction: column; align-items: stretch; display: none; }
  .main-navigation.is-open { display: flex; }
  .nav-menu { flex-direction: column; gap: 0; }
  .nav-menu a { padding: var(--spacing-sm); }
  .search-toggle { display: block; }
  .header-search { display: none; width: 100%; }
  .header-search.is-open { display: flex; }
  .search-field { width: 100%; }
  .hero-banner { min-height: 380px; }
  .posts-grid { grid-template-columns: 1fr; }
  .post-list-item { flex-direction: column; }
  .post-list-thumbnail { width: 100%; height: 160px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}