/* Mobile-First Responsive Design */

/* Tablet (768px and up) */
@media (min-width: 768px) {
  .container {
    padding: 0 var(--spacing-8);
  }

  .grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .hidden-tablet {
    display: none !important;
  }

  .visible-tablet {
    display: block !important;
  }

  .btn {
    padding: var(--spacing-3) var(--spacing-6);
  }

  .card {
    padding: var(--spacing-8);
  }
}

/* Desktop (1024px and up) */
@media (min-width: 1024px) {
  body {
    font-size: var(--text-lg);
  }

  .container {
    padding: 0 var(--spacing-12);
  }

  .grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .hidden-desktop {
    display: none !important;
  }

  .visible-desktop {
    display: block !important;
  }

  h1 {
    font-size: clamp(2.25rem, 5vw, 3rem);
  }

  h2 {
    font-size: clamp(1.875rem, 4vw, 2.25rem);
  }
}

/* Large Desktop (1280px and up) */
@media (min-width: 1280px) {
  .container {
    max-width: 1280px;
  }
}

/* Extra Large Desktop (1536px and up) */
@media (min-width: 1536px) {
  .container {
    max-width: 1400px;
  }

  body {
    font-size: var(--text-lg);
    line-height: 1.6;
  }
}

/* Small Mobile (max-width: 640px) */
@media (max-width: 640px) {
  body {
    font-size: var(--text-sm);
  }

  h1 {
    font-size: var(--text-3xl);
  }

  h2 {
    font-size: var(--text-2xl);
  }

  h3 {
    font-size: var(--text-xl);
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .card {
    padding: var(--spacing-4);
  }

  .btn {
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--text-sm);
    width: 100%;
  }

  .btn--block {
    width: 100%;
  }

  .container {
    padding: 0 var(--spacing-3);
  }

  table {
    font-size: var(--text-sm);
  }

  th,
  td {
    padding: var(--spacing-2) var(--spacing-3);
  }
}

/* Touch Device Optimization */
@media (hover: none) and (pointer: coarse) {
  button,
  .btn,
  a,
  input,
  select,
  textarea {
    min-height: 44px;
    min-width: 44px;
  }

  .btn {
    padding: var(--spacing-3) var(--spacing-4);
  }

  input,
  select,
  textarea {
    font-size: 16px;
    padding: var(--spacing-3) var(--spacing-4);
  }
}

/* Print Styles */
@media print {
  body {
    background-color: white;
    color: black;
  }

  .no-print {
    display: none !important;
  }

  a {
    text-decoration: underline;
  }

  a::after {
    content: ' (' attr(href) ')';
    color: #666;
    font-size: 0.8em;
  }

  h1,
  h2,
  h3 {
    page-break-after: avoid;
  }

  table,
  img {
    page-break-inside: avoid;
  }
}

/* Prefers Reduced Motion */
@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;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: more) {
  a {
    text-decoration: underline;
  }

  button,
  .btn {
    border: 2px solid currentColor;
  }

  input,
  select,
  textarea {
    border-width: 2px;
  }

  .card {
    border-width: 2px;
  }
}