/*
Theme Name: CRG Retro Fast Theme
Theme URI: https://retro-games.example.com
Author: Classic Retro Games Team
Author URI: https://retro-games.example.com
Description: Ultra-fast, lightweight retro gaming WordPress theme inspired by 80s/90s arcade, CRT monitors and DOS aesthetics. Zero jQuery, 100/100 Core Web Vitals, Cards UI game sheets, integrated Vanilla JS Lightbox and dynamic download matrix.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.6
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: crg-fast
Tags: retro, games, arcade, fast, responsive-layout, dark-mode, grid-layout
*/

/* ==========================================================================
   RETRO DESIGN SYSTEM & CSS TOKENS
   ========================================================================== */
:root {
  /* Dark Arcade Palette */
  --crg-bg-root: #090a10;
  --crg-bg-body: #0d0f18;
  --crg-bg-card: #141726;
  --crg-bg-surface: #1c2035;
  --crg-bg-surface-hover: #252b48;
  --crg-bg-input: #10121d;
  
  /* Retro Neon Accents */
  --crg-cyan: #00f3ff;
  --crg-cyan-dim: rgba(0, 243, 255, 0.15);
  --crg-pink: #ff007f;
  --crg-pink-dim: rgba(255, 0, 127, 0.15);
  --crg-amber: #ffb703;
  --crg-amber-dim: rgba(255, 183, 3, 0.15);
  --crg-green: #39ff14;
  --crg-green-dim: rgba(57, 255, 20, 0.15);
  --crg-purple: #9d4edd;
  
  /* Platform Identity Badges */
  --crg-dos-color: #ff9100;
  --crg-amiga-color: #ff0055;
  --crg-c64-color: #4361ee;
  --crg-arcade-color: #00f3ff;
  --crg-win-color: #00b4d8;
  --crg-snes-color: #b5179e;
  
  /* Text and Readability */
  --crg-text-main: #e2e8f0;
  --crg-text-muted: #94a3b8;
  --crg-text-bright: #ffffff;
  
  /* Retro Pixel Borders & Shadows */
  --crg-border: 1px solid #282d4a;
  --crg-border-accent: 1px solid #3d4570;
  --crg-border-cyan: 1px solid rgba(0, 243, 255, 0.4);
  --crg-border-pink: 1px solid rgba(255, 0, 127, 0.4);
  --crg-pixel-box-shadow: 4px 4px 0px rgba(0, 0, 0, 0.8);
  --crg-pixel-box-shadow-hover: 6px 6px 0px rgba(0, 243, 255, 0.3);
  
  /* Glowing Arcade Effects */
  --crg-glow-cyan: 0 0 15px rgba(0, 243, 255, 0.35);
  --crg-glow-pink: 0 0 15px rgba(255, 0, 127, 0.35);
  --crg-glow-green: 0 0 12px rgba(57, 255, 20, 0.3);
  
  /* Typography */
  --crg-font-retro: 'Press Start 2P', monospace, monospace;
  --crg-font-mono: 'Consolas', 'Courier New', monospace;
  --crg-font-body: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  
  /* Container layout */
  --crg-max-width: 1280px;
  --crg-radius: 4px;
}

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

html {
  font-family: var(--crg-font-body);
  font-size: 16px;
  line-height: 1.6;
  background-color: var(--crg-bg-root);
  color: var(--crg-text-main);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: radial-gradient(circle at 50% 0%, #151829 0%, var(--crg-bg-body) 70%);
  background-attachment: fixed;
  color: var(--crg-text-main);
  position: relative;
  overflow-x: hidden;
}

/* Subtle CRT Scanline Overlay (Toggleable / GPU Accelerated) */
body.crt-active::before {
  content: " ";
  display: block;
  position: fixed;
  top: 0; left: 0; bottom: 0; right: 0;
  background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.03), rgba(0, 255, 0, 0.01), rgba(0, 0, 255, 0.03));
  z-index: 9999;
  background-size: 100% 3px, 3px 100%;
  pointer-events: none;
  opacity: 0.65;
}

a {
  color: var(--crg-cyan);
  text-decoration: none;
  transition: color 0.2s ease, text-shadow 0.2s ease;
}

a:hover {
  color: var(--crg-pink);
  text-shadow: var(--crg-glow-pink);
}

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

/* Layout Container */
.crg-container {
  width: 100%;
  max-width: var(--crg-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* Retro Header & Navigation */
.crg-header {
  background-color: rgba(13, 15, 24, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 2px solid #232742;
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 0.75rem 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.crg-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.crg-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--crg-font-retro);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--crg-text-bright);
  letter-spacing: -0.5px;
  text-transform: uppercase;
}

.crg-logo span.badge-retro {
  background: linear-gradient(135deg, var(--crg-pink), var(--crg-purple));
  color: #fff;
  font-size: 0.65rem;
  padding: 3px 6px;
  border-radius: 3px;
  letter-spacing: 0.5px;
  box-shadow: var(--crg-glow-pink);
}

.crg-logo:hover {
  color: var(--crg-cyan);
  text-shadow: var(--crg-glow-cyan);
}

/* Search Bar in Header */
.crg-header-search {
  flex: 1;
  max-width: 480px;
}

.crg-search-form {
  position: relative;
  display: flex;
  align-items: center;
}

.crg-search-input {
  width: 100%;
  background-color: var(--crg-bg-input);
  border: 1px solid #2f3458;
  border-radius: var(--crg-radius);
  color: #fff;
  padding: 0.55rem 2.5rem 0.55rem 0.85rem;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.crg-search-input:focus {
  border-color: var(--crg-cyan);
  box-shadow: var(--crg-glow-cyan);
}

.crg-search-btn {
  position: absolute;
  right: 6px;
  background: none;
  border: none;
  color: var(--crg-text-muted);
  cursor: pointer;
  padding: 4px 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease;
}

.crg-search-btn:hover {
  color: var(--crg-cyan);
}

/* Header Retro Controls & Navigation */
.crg-nav-wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.crg-nav-menu {
  display: flex;
  list-style: none;
  gap: 1rem;
  align-items: center;
}

.crg-nav-link {
  font-family: var(--crg-font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--crg-text-muted);
  padding: 0.35rem 0.6rem;
  border-radius: 3px;
  transition: all 0.2s ease;
}

.crg-nav-link:hover, .crg-nav-link.active {
  color: var(--crg-cyan);
  background-color: var(--crg-cyan-dim);
}

/* CRT Toggle Button */
.crg-crt-toggle {
  background: var(--crg-bg-surface);
  border: 1px solid #333a60;
  color: var(--crg-text-muted);
  padding: 0.35rem 0.65rem;
  border-radius: 3px;
  font-family: var(--crg-font-mono);
  font-size: 0.75rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.2s ease;
}

.crg-crt-toggle:hover, .crg-crt-toggle.active {
  border-color: var(--crg-green);
  color: var(--crg-green);
  box-shadow: var(--crg-glow-green);
}

/* Main Site Content Layout */
.crg-main {
  flex: 1;
  padding: 2rem 0;
}

/* Retro Footer */
.crg-footer {
  background-color: var(--crg-bg-root);
  border-top: 2px solid #1c2035;
  padding: 2.5rem 0 1.5rem;
  margin-top: auto;
  font-size: 0.875rem;
  color: var(--crg-text-muted);
}

.crg-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.crg-footer-col h4 {
  font-family: var(--crg-font-retro);
  font-size: 0.75rem;
  color: var(--crg-amber);
  margin-bottom: 1rem;
  letter-spacing: 0.5px;
}

.crg-footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.crg-footer-links a {
  color: var(--crg-text-muted);
}

.crg-footer-links a:hover {
  color: var(--crg-cyan);
}

.crg-footer-bottom {
  border-top: 1px solid #171a2d;
  padding-top: 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8rem;
}

/* Responsive styles */
@media (max-width: 900px) {
  .crg-footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .crg-header-search {
    max-width: 250px;
  }
}

@media (max-width: 640px) {
  .crg-footer-grid {
    grid-template-columns: 1fr;
  }
  .crg-header-inner {
    flex-wrap: wrap;
  }
  .crg-header-search {
    order: 3;
    max-width: 100%;
    width: 100%;
  }
  .crg-nav-menu {
    display: none;
  }
}