:root {
  --mobile-xs: 280px; /* Added extra small mobile */
  --mobile-s: 320px;
  --mobile-m: 375px;
  --mobile-l: 425px;
  --tablet: 768px;
  --laptop: 1024px;
  --laptop-l: 1440px;
  --desktop: 2560px;
}

/* Base Mobile First Styles */
.container {
  width: 100%;
  padding: 0 15px;
  margin: 0 auto;
}

/* Extra Small Mobile (below 320px) */
@media screen and (max-width: 320px) {
  .container { padding: 0 10px; }
  
  .logo-img {
    width: 35px;
    height: 25px;
  }
  
  .logo-text h1 { font-size: 14px; }
  
  .nav-links a { font-size: 13px; }
  
  .hero h1 { font-size: 20px; }
  
  .section-title { font-size: 20px; }
  
  .gallery-filters {
    gap: 5px;
    margin: 0 5px 15px;
  }
  
  .filter-btn {
    padding: 4px 8px;
    font-size: 12px;
  }
  
  .gallery-grid {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 10px;
  }
}

/* Mobile S (320px) */
@media screen and (min-width: 320px) {
  html { font-size: 14px; }
  
  .header-content { padding: 10px 0; }
  
  .logo-img {
    width: 40px;
    height: 30px;
  }
  
  .nav-links {
    display: none;
  }
  
  .mobile-nav { display: block; }
  
  .hero { min-height: 300px; }
  
  .hero h1 { font-size: 1.5rem; }
  
  .programs-grid,
  .gallery-grid,
  .impact-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* Mobile M (375px) */
@media screen and (min-width: 375px) {
  html { font-size: 15px; }
  
  .hero h1 { font-size: 1.8rem; }
  
  .programs-grid,
  .gallery-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }
}

/* Mobile L (425px) */
@media screen and (min-width: 425px) {
  html { font-size: 16px; }
  
  .container { padding: 0 20px; }
  
  .hero h1 { font-size: 2rem; }
}

/* Tablet (768px) */
@media screen and (min-width: 768px) {
  .container {
    padding: 0 30px;
    max-width: 720px;
  }
  
  .nav-links { display: flex; }
  
  .mobile-nav { display: none; }
  
  .programs-grid,
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Tablet Adjustments */
@media screen and (min-width: 768px) and (max-width: 1023px) {
  .container {
    max-width: 720px;
    padding: 0 20px;
    margin: 0 auto;
  }

  .header-container {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 20px;
    align-items: center;
  }

  .logo-section {
    display: flex;
    align-items: center;
    gap: 15px;
  }

  .logo-img {
    width: 80px;
    height: 60px;
  }

  .nav-links {
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    padding: 10px 0;
  }

  .nav-links a {
    font-size: 15px;
    padding: 8px 12px;
  }

  /* Main content adjustments */
  .programs-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .contact-container,
  .gallery-grid,
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }
}

/* Laptop (1024px) */
@media screen and (min-width: 1024px) {
  .container {
    max-width: 1140px;
    padding: 0 30px;
  }

  .header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .nav-links {
    display: flex !important;
    gap: 25px;
  }

  .nav-links a {
    font-size: 16px;
    padding: 10px 15px;
  }

  /* Main content adjustments */
  .programs-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
  }

  .contact-container {
    grid-template-columns: 1fr 2fr;
  }

  .gallery-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .footer-content {
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
  }
}

/* Laptop L (1440px) */
@media screen and (min-width: 1440px) {
  .container { max-width: 1320px; }
  
  .programs-grid,
  .gallery-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
  }
}

/* Desktop (2560px) */
@media screen and (min-width: 2560px) {
  html { font-size: 18px; }
  
  .container { max-width: 2000px; }
}

/* Touch-friendly adjustments */
@media (pointer: coarse) {
  button,
  .nav-links a,
  input,
  select,
  textarea,
  input[type="button"],
  input[type="submit"] {
    min-height: 44px;
    min-width: 44px;
    padding: 12px;
  }
  
  .btn,
  input[type="checkbox"],
  input[type="radio"] {
    min-height: 44px;
    min-width: 44px;
  }
  
  .nav-links a {
    padding: 12px 15px;
  }
  
  .gallery-grid a {
    min-height: 44px;
  }
  
  .filter-btn {
    min-height: 44px;
    padding: 12px 20px;
  }
}

/* Print styles */
@media print {
  .nav-links,
  .mobile-nav,
  .footer {
    display: none;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}

/* Additional Responsive Rules */
/* Form Elements */
@media screen and (max-width: 480px) {
  .form-group {
    margin-bottom: 15px;
  }
  
  input, select, textarea {
    font-size: 16px; /* Prevent auto-zoom on iOS */
    padding: 10px;
  }
  
  .btn {
    width: 100%;
    margin: 5px 0;
  }
  
  .gallery-filters {
    gap: 8px;
    margin: 0 10px 20px;
  }
  
  .filter-btn {
    padding: 6px 12px;
    font-size: 13px;
  }
  
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    padding: 12px;
  }
}

/* Table Responsiveness */
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 15px;
}

/* Image Responsiveness */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Grid Systems */
.grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* Flexbox Layouts */
.flex-container {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
}

/* Orientation Changes */
@media screen and (orientation: landscape) and (max-height: 500px) {
  .hero {
    min-height: 200px;
  }
  
  .nav-links {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

/* High-DPI Screens */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .logo-img {
    transform: translateZ(0);
  }
}

/* Gallery Specific Responsive Styles */
@media screen and (max-width: 480px) {
  .gallery-grid {
    grid-template-columns: 1fr; /* Force single column */
    gap: 15px;
    padding: 10px;
  }
  
  .gallery-grid a {
    width: 100%;
    margin-bottom: 10px;
  }
}

@media screen and (min-width: 481px) and (max-width: 768px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    padding: 15px;
  }
}

@media screen and (min-width: 769px) and (max-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 20px;
  }
}

@media screen and (min-width: 1025px) {
  .gallery-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    padding: 25px;
  }
}

/* Gallery Loading States */
.loading-spinner {
  width: 100%;
  text-align: center;
  padding: 30px;
  grid-column: 1 / -1;
}