/* assets/css/primitives.css */

@layer primitives {
  /* ==========================================================================
     1. Animations & Keyframes
     ========================================================================== */
  @keyframes fade-in {
    from { opacity: 0; }
    to   { opacity: 1; }
  }

  @keyframes rise-in {
    from { opacity: 0; transform: translateY(1.5rem); }
    to   { opacity: 1; transform: translateY(0); }
  }

  @keyframes pulse-slow {
    0%, 100% { opacity: 0.8; transform: scale(1); }
    50%      { opacity: 0.6; transform: scale(1.03); }
  }

  .animate-fade-in {
    animation: fade-in 0.3s ease-in-out forwards;
  }

  .animate-fade-up,
  .animate-reveal {
    animation: rise-in 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  }

  .animate-pulse-slow {
    animation: pulse-slow 3s ease-in-out infinite;
  }

  /* ==========================================================================
     2. Glassmorphism System
     ========================================================================== */
  .glass {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur, 12px));
    -webkit-backdrop-filter: blur(var(--glass-blur, 12px));
    border: 1px solid var(--glass-border, rgb(255 255 255 / 0.1));
    box-shadow: var(--shadow-md);
    transition: background-color 0.3s, border-color 0.3s, box-shadow 0.3s;
  }

  .glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur, 16px));
    -webkit-backdrop-filter: blur(var(--glass-blur, 16px));
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-2xl);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s;
  }

  .glass--heavy {
    --glass-blur: 24px;
    --glass-bg: color-mix(in srgb, var(--color-bg-surface) 90%, transparent);
  }

  .glass--subtle {
    --glass-blur: 8px;
    --glass-bg: color-mix(in srgb, var(--color-bg-surface) 50%, transparent);
  }

  /* ==========================================================================
     3. Modals & Overlays
     ========================================================================== */
  .modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    background: color-mix(in srgb, var(--color-text-main) 40%, transparent);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .modal-overlay.is-open,
  .modal-overlay:not(.hidden) {
    opacity: 1;
    pointer-events: auto;
  }

  .modal-card {
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    max-width: 90vw;
    width: 600px;
    max-height: 85vh;
    overflow-y: auto;
    transform: translateY(1.5rem);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .modal-overlay.is-open .modal-card,
  .modal-overlay:not(.hidden) .modal-card {
    transform: translateY(0);
  }

  /* ==========================================================================
     4. Custom Scrollbars
     ========================================================================== */
  ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
  }

  ::-webkit-scrollbar-track {
    background: var(--color-bg-base);
  }

  ::-webkit-scrollbar-thumb {
    background: color-mix(in srgb, var(--color-text-muted) 30%, transparent);
    border-radius: var(--radius-full);
  }

  ::-webkit-scrollbar-thumb:hover {
    background: color-mix(in srgb, var(--color-text-muted) 50%, transparent);
  }

  /* ==========================================================================
     5. Accessibility Primitives
     ========================================================================== */
  .hidden {
    display: none !important;
  }

  .sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
  }

  .sr-only-focusable:focus,
  .sr-only-focusable:active {
    position: static !important;
    width: auto !important;
    height: auto !important;
    margin: 0 !important;
    overflow: visible !important;
    clip: auto !important;
    white-space: normal !important;
  }

  .skip-link {
    position: fixed;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-primary);
    color: var(--color-text-inverse) !important;
    padding: 0.75rem 1.5rem;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    font-weight: 700;
    text-decoration: none;
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    transition: top 0.2s ease-in-out;
  }

  .skip-link:focus {
    top: 0;
    outline: none;
  }

  @media (prefers-reduced-motion: reduce) {
    html {
      scroll-behavior: auto !important;
    }
    
    *, *::before, *::after {
      animation-delay: -1ms !important;
      animation-duration: 1ms !important;
      animation-iteration-count: 1 !important;
      background-attachment: initial !important;
      scroll-behavior: auto !important;
      transition-duration: 0s !important;
      transition-delay: 0s !important;
    }
  }

  /* ==========================================================================
     6. Dyslexia and Custom Fonts
     ========================================================================== */
  @font-face {
    font-family: 'Open Dyslexic';
    src: url('/assets/fonts/OpenDyslexic/OpenDyslexic-Regular.otf') format('opentype');
    font-weight: normal;
    font-style: normal;
  }
  @font-face {
    font-family: 'Open Dyslexic';
    src: url('/assets/fonts/OpenDyslexic/OpenDyslexic-Bold.otf') format('opentype');
    font-weight: bold;
    font-style: normal;
  }
  @font-face {
    font-family: 'Open Dyslexic';
    src: url('/assets/fonts/OpenDyslexic/OpenDyslexic-Italic.otf') format('opentype');
    font-weight: normal;
    font-style: italic;
  }

  .font-outfit {
    --site-font-family: 'Outfit', sans-serif;
  }
  .font-inter {
    --site-font-family: 'Inter', sans-serif;
  }
  .font-dyslexic {
    --site-font-family: 'Open Dyslexic', 'Comic Sans MS', sans-serif;
  }
  .font-lexend {
    --site-font-family: 'Lexend', sans-serif;
  }
  .font-comicneue {
    --site-font-family: 'Comic Neue', 'Comic Sans MS', sans-serif;
  }
  .font-comicsans {
    --site-font-family: 'Comic Sans MS', sans-serif;
  }
  .font-mono {
    --site-font-family: 'Roboto Mono', monospace;
  }

  /* ==========================================================================
     7. Accessibility Features
     ========================================================================== */
  
  /* Reading Mask */
  #reading-mask {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9990;
    overflow: hidden;
  }
  #reading-guide {
    position: absolute;
    left: 0;
    width: 100%;
    height: 48px;
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, var(--mask-opacity, 0.7));
    border-top: 2px dashed var(--color-primary);
    border-bottom: 2px dashed var(--color-primary);
    pointer-events: none;
  }

  /* Spotlight Isolation Mode */
  #a11y-spotlight-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9995;
    background: radial-gradient(
      circle var(--spotlight-radius, 150px) at calc(var(--spotlight-x, 0) * 1px) calc(var(--spotlight-y, 0) * 1px),
      transparent 100%,
      rgba(15, 23, 42, 0.85) 100%
    );
    transition: background 0.15s ease-out;
  }
  
  .spotlight-focused {
    position: relative;
    z-index: 9996 !important;
    background-color: var(--color-bg-surface) !important;
    box-shadow: 0 0 20px var(--color-primary) !important;
    border-radius: var(--radius-md) !important;
  }

  /* Large Cursor */
  .cursor-large,
  .cursor-large * {
    cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='48' height='48' viewBox='0 0 32 32'%3E%3Cpath fill='%234f46e5' stroke='%23ffffff' stroke-width='2' d='M0,0 L0,20 L6,14 L12,25 L16,23 L10,12 L17,12 Z'/%3E%3C/svg%3E"), auto !important;
  }

  /* Hide Images */
  .hide-images img,
  .hide-images picture,
  .hide-images svg:not(.svg-inline--fa) {
    visibility: hidden !important;
    opacity: 0 !important;
    height: 0 !important;
    width: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  /* Visual Highlights */
  .highlight-links a {
    text-decoration: underline !important;
    text-decoration-color: var(--color-primary) !important;
    text-decoration-thickness: 3px !important;
    background-color: color-mix(in srgb, var(--color-primary) 15%, transparent) !important;
    color: var(--color-primary) !important;
    font-weight: 700 !important;
    outline: 2px solid var(--color-primary) !important;
    outline-offset: 2px !important;
    position: relative;
    z-index: 2;
  }

  .highlight-headings h1,
  .highlight-headings h2,
  .highlight-headings h3,
  .highlight-headings h4,
  .highlight-headings h5,
  .highlight-headings h6 {
    background-color: color-mix(in srgb, var(--color-secondary) 15%, transparent) !important;
    border-left: 5px solid var(--color-secondary) !important;
    padding-left: var(--space-2) !important;
  }

  /* Stop Animations */
  .stop-animations *,
  .stop-animations *::before,
  .stop-animations *::after {
    animation-delay: -1ms !important;
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0s !important;
    transition-delay: 0s !important;
    scroll-behavior: auto !important;
  }

  /* Focus Mode Layout overrides */
  .focus-mode .header-main,
  .focus-mode .footer-main,
  .focus-mode .settings-sidebar,
  .focus-mode .announcement-bar,
  .focus-mode .migration-overlay {
    display: none !important;
  }
  .focus-mode .settings-layout {
    grid-template-columns: 1fr !important;
  }
  .focus-mode .page-content-wrapper {
    max-width: 800px !important;
    margin-left: auto !important;
    margin-right: auto !important;
  }
}