/*
Theme Name: Oriel Nexus
Theme URI: https://orielnexusltd.com.ng
Author: Oriel Nexus Limited
Author URI: https://orielnexusltd.com.ng
Description: Custom, high-performance corporate WordPress theme for Oriel Nexus Limited — Energy, Technology & Infrastructure. Features Google Antigravity physics canvas integration, dark obsidian palette, and technical JSON-LD schema.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 8.0
License: Proprietary
License URI: https://orielnexusltd.com.ng/terms
Text Domain: oriel-nexus
*/

/* 
 * CSS RESET & BASE STYLES 
 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--color-secondary-charcoal, #0D1117);
  color: var(--color-neutral-light, #F0F6FC);
  font-family: var(--font-family-base, 'Inter', -apple-system, BlinkMacSystemFont, sans-serif);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-standard, 0.25s ease-in-out);
}

ul, ol {
  list-style: none;
}

/* Accessibility Skip Link */
.skip-link {
  position: absolute;
  top: -9999px;
  left: 1.5rem;
  z-index: 10000;
  padding: 0.75rem 1.25rem;
  background-color: var(--color-accent-lemon, #CCFF00);
  color: var(--color-secondary-charcoal, #0D1117);
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: 4px;
  text-decoration: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
  transition: top 0.2s ease-in-out;
}

.skip-link:focus,
.skip-link:focus-visible {
  top: 1rem;
  outline: 2px solid #FFFFFF;
  outline-offset: 2px;
}

/* Global Focus-Visible Styling (WCAG 2.4.7 AA) */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent-lemon, #CCFF00);
  outline-offset: 3px;
}