/* Modern Enhancements for Mahapong Paper Website */
/* Accessibility, Mobile Responsiveness, and Performance Improvements */

/* CSS Custom Properties for better maintainability */
:root {
  --primary-color: #33A489;
  --secondary-color: #E4AA53;
  --text-color: #333;
  --background-color: #fff;
  --shadow-color: rgba(0, 0, 0, 0.1);
  --border-radius: 8px;
  --transition-speed: 0.3s;
  --font-family: "Kanit", sans-serif;
  --max-width: 1200px;
  --spacing-unit: 1rem;
}

/* Enhanced CSS Reset and Base Styles */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  line-height: 1.5;
}

body {
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Skip to Main Content Link */
.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;
}

#skip-to-main {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--primary-color);
  color: white;
  padding: 8px;
  text-decoration: none;
  border-radius: 4px;
  z-index: 1000;
  transition: top var(--transition-speed);
}

#skip-to-main:focus {
  top: 6px;
}

/* Enhanced Focus Indicators */
.keyboard-focused,
*:focus-visible {
  outline: 3px solid var(--primary-color) !important;
  outline-offset: 2px !important;
}

/* Remove default focus for mouse users */
*:focus:not(.keyboard-focused) {
  outline: none;
}

/* High Contrast Mode Support */
.high-contrast {
  --primary-color: #000;
  --secondary-color: #000;
  --text-color: #000;
  --background-color: #fff;
}

.high-contrast img {
  filter: contrast(1.5);
}

/* Enhanced Mobile Menu */
.menu-mobile {
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  border-radius: 4px;
  transition: background-color var(--transition-speed);
}

.menu-mobile:hover,
.menu-mobile:focus {
  background-color: rgba(255, 255, 255, 0.2);
}

.menu-mobile svg {
  width: 24px;
  height: 24px;
  transition: transform var(--transition-speed);
}

.menu-mobile[aria-expanded="true"] svg {
  transform: rotate(90deg);
}

/* Enhanced Menu List for Mobile */
@media (max-width: 768px) {
  .menu-list {
    position: fixed;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.95);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: left var(--transition-speed) ease-in-out;
    z-index: 999;
  }
  
  .menu-list.active {
    left: 0;
  }
  
  .menu-list li {
    margin: 1rem 0;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-speed), transform var(--transition-speed);
  }
  
  .menu-list.active li {
    opacity: 1;
    transform: translateY(0);
  }
  
  .menu-list.active li:nth-child(1) { transition-delay: 0.1s; }
  .menu-list.active li:nth-child(2) { transition-delay: 0.2s; }
  .menu-list.active li:nth-child(3) { transition-delay: 0.3s; }
  .menu-list.active li:nth-child(4) { transition-delay: 0.4s; }
  .menu-list.active li:nth-child(5) { transition-delay: 0.5s; }
}

/* Prevent body scroll when menu is open */
.menu-open {
  overflow: hidden !important;
}

/* Enhanced Video Controls */
.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.7);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: var(--border-radius);
  font-size: 1.2rem;
  cursor: pointer;
  z-index: 10;
  transition: background-color var(--transition-speed);
}

.video-play-btn:hover,
.video-play-btn:focus {
  background: rgba(0, 0, 0, 0.9);
}

/* Enhanced Cards with Better Accessibility */
.ProductCard {
  transition: transform var(--transition-speed), box-shadow var(--transition-speed);
  border: 1px solid #e0e0e0;
}

.ProductCard:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--shadow-color);
}

.ProductCard:focus-within {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--shadow-color);
}

/* Improved Button Accessibility */
.button {
  transition: all var(--transition-speed);
  border: 2px solid transparent;
  min-height: 44px; /* WCAG touch target size */
  min-width: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.button:hover,
.button:focus {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--shadow-color);
}

.button.primary:focus {
  outline: 1px solid #8fbbb1;
}

.button.primary:active {
  color: #fff;
  background: #20826a;
}

header nav ul li .button:active {
  background: #20826a;
  color: #fff;
}

/* Enhanced Typography Scale */
.responsive-text {
  font-size: clamp(1rem, 2.5vw, 1.5rem);
}

.responsive-title {
  font-size: clamp(1.5rem, 4vw, 3rem);
}

/* Improved Container Sizes */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-unit);
}

/* Enhanced Grid System */
.grid {
  display: grid;
  gap: var(--spacing-unit);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Performance Improvements */
.lazy-image {
  opacity: 0;
  transition: opacity var(--transition-speed);
}

.lazy-image.loaded {
  opacity: 1;
}

/* Loading States */
.loading {
  position: relative;
  overflow: hidden;
}

.loading::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% { left: -100%; }
  100% { left: 100%; }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .video-play-btn {
    display: block !important;
  }
}

/* Print Styles */
@media print {
  .menu-mobile,
  .video-play-btn,
  video {
    display: none !important;
  }
  
  .ProductCard {
    break-inside: avoid;
    page-break-inside: avoid;
  }
  
  a::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    color: #666;
  }
}

/* Enhanced Mobile Responsiveness */
@media (max-width: 768px) {
  :root {
    --spacing-unit: 0.75rem;
  }
  
  .ProductCard.LeftCol {
    margin: 0.5rem 0;
  }
  
  .flex-container {
    gap: var(--spacing-unit);
  }
  
  .feature-pic {
    min-height: 50vh;
  }
  
  /* Improve touch targets */
  a, button {
    min-height: 44px;
    min-width: 44px;
    padding: 12px;
  }
  
  /* Better text spacing on mobile */
  h1, h2, h3, h4, h5, h6 {
    line-height: 1.3;
    margin-bottom: 0.5em;
  }
  
  p {
    line-height: 1.6;
    margin-bottom: 1em;
  }
}

/* Extra Small Devices */
@media (max-width: 480px) {
  :root {
    --spacing-unit: 0.5rem;
  }
  
  .mahapong_headBG {
    height: 50vh !important;
  }
  
  .paragraph h1 {
    font-size: 1.8rem !important;
  }
  
  .paragraph h2 {
    font-size: 1rem !important;
  }
}

/* Large Screens */
@media (min-width: 1200px) {
  .container {
    max-width: 1200px;
  }
  
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}