/* === Responsive Utilities === */

/* === Breakpoints === */
/* 
  xs: 0px - 479px (mobile)
  sm: 480px - 767px (large mobile)
  md: 768px - 1023px (tablet)
  lg: 1024px - 1199px (desktop)
  xl: 1200px+ (large desktop)
*/

/* === Mobile First Responsive Classes === */

/* Display Classes */
.hidden-xs { display: block; }
.hidden-sm { display: block; }
.hidden-md { display: block; }
.hidden-lg { display: block; }
.hidden-xl { display: block; }

.visible-xs { display: none; }
.visible-sm { display: none; }
.visible-md { display: none; }
.visible-lg { display: none; }
.visible-xl { display: none; }

/* Extra Small Devices (0px - 479px) */
@media (max-width: 479px) {
  .hidden-xs { display: none !important; }
  .visible-xs { display: block !important; }
  
  /* Text Alignment */
  .text-center-xs { text-align: center; }
  .text-left-xs { text-align: left; }
  .text-right-xs { text-align: right; }
  
  /* Flex Direction */
  .flex-col-xs { flex-direction: column; }
  .flex-row-xs { flex-direction: row; }
  
  /* Spacing Overrides */
  .p-xs-sm { padding: var(--space-sm); }
  .p-xs-md { padding: var(--space-md); }
  .p-xs-lg { padding: var(--space-lg); }
  
  .m-xs-sm { margin: var(--space-sm); }
  .m-xs-md { margin: var(--space-md); }
  .m-xs-lg { margin: var(--space-lg); }
  
  /* Width Classes */
  .w-full-xs { width: 100%; }
  .w-auto-xs { width: auto; }
}

/* Small Devices (480px - 767px) */
@media (min-width: 480px) and (max-width: 767px) {
  .hidden-sm { display: none !important; }
  .visible-sm { display: block !important; }
  
  .text-center-sm { text-align: center; }
  .text-left-sm { text-align: left; }
  .text-right-sm { text-align: right; }
  
  .flex-col-sm { flex-direction: column; }
  .flex-row-sm { flex-direction: row; }
  
  .p-sm-sm { padding: var(--space-sm); }
  .p-sm-md { padding: var(--space-md); }
  .p-sm-lg { padding: var(--space-lg); }
  
  .w-full-sm { width: 100%; }
  .w-auto-sm { width: auto; }
}

/* Medium Devices (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
  .hidden-md { display: none !important; }
  .visible-md { display: block !important; }
  
  .text-center-md { text-align: center; }
  .text-left-md { text-align: left; }
  .text-right-md { text-align: right; }
  
  .flex-col-md { flex-direction: column; }
  .flex-row-md { flex-direction: row; }
  
  .p-md-sm { padding: var(--space-sm); }
  .p-md-md { padding: var(--space-md); }
  .p-md-lg { padding: var(--space-lg); }
  
  .w-full-md { width: 100%; }
  .w-auto-md { width: auto; }
}

/* Large Devices (1024px - 1199px) */
@media (min-width: 1024px) and (max-width: 1199px) {
  .hidden-lg { display: none !important; }
  .visible-lg { display: block !important; }
  
  .text-center-lg { text-align: center; }
  .text-left-lg { text-align: left; }
  .text-right-lg { text-align: right; }
  
  .flex-col-lg { flex-direction: column; }
  .flex-row-lg { flex-direction: row; }
  
  .p-lg-sm { padding: var(--space-sm); }
  .p-lg-md { padding: var(--space-md); }
  .p-lg-lg { padding: var(--space-lg); }
  
  .w-full-lg { width: 100%; }
  .w-auto-lg { width: auto; }
}

/* Extra Large Devices (1200px+) */
@media (min-width: 1200px) {
  .hidden-xl { display: none !important; }
  .visible-xl { display: block !important; }
  
  .text-center-xl { text-align: center; }
  .text-left-xl { text-align: left; }
  .text-right-xl { text-align: right; }
  
  .flex-col-xl { flex-direction: column; }
  .flex-row-xl { flex-direction: row; }
  
  .p-xl-sm { padding: var(--space-sm); }
  .p-xl-md { padding: var(--space-md); }
  .p-xl-lg { padding: var(--space-lg); }
  
  .w-full-xl { width: 100%; }
  .w-auto-xl { width: auto; }
}

/* === Mobile-Specific Styles === */
@media (max-width: 767px) {
  /* Navigation Adjustments */
  .nav-desktop {
    display: none;
  }
  
  .nav-mobile {
    display: flex;
  }
  
  /* Grid System Mobile */
  .grid-cols-mobile-1 {
    grid-template-columns: 1fr;
  }
  
  /* Typography Mobile */
  .section-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-xl);
  }
  
  .section-content {
    font-size: var(--font-size-base);
  }
  
  /* Spacing Mobile */
  .section {
    padding: var(--space-2xl) 0;
  }
  
  .container {
    padding: 0 var(--space-lg);
  }
  
  /* Button Mobile */
  .btn {
    width: 100%;
    max-width: 300px;
  }
  
  .btn-group-mobile {
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
  }
  
  /* Card Mobile */
  .card-header,
  .card-body,
  .card-footer {
    padding: var(--space-lg);
  }
  
  /* Form Mobile */
  .persona-options {
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
  }
  
  .auth-container {
    padding: var(--space-2xl);
    margin: var(--space-md);
  }
  
  #auth-input {
    font-size: var(--font-size-xl);
    letter-spacing: 4px;
  }
}

/* === Tablet-Specific Styles === */
@media (min-width: 768px) and (max-width: 1023px) {
  .container {
    padding: 0 var(--space-xl);
  }
  
  .grid-cols-tablet-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .section {
    padding: var(--space-3xl) 0;
  }
}

/* === Desktop-Specific Styles === */
@media (min-width: 1024px) {
  .nav-mobile {
    display: none;
  }
  
  .nav-desktop {
    display: flex;
  }
  
  .grid-cols-desktop-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .grid-cols-desktop-4 {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .section {
    padding: var(--space-4xl) 0;
  }
}

/* === Container Responsive Behavior === */
@media (max-width: 480px) {
  .container,
  .container-sm,
  .container-md,
  .container-lg,
  .container-xl,
  .container-2xl,
  .container-fluid {
    padding: 0 var(--space-md);
  }
}

@media (min-width: 481px) and (max-width: 768px) {
  .container,
  .container-md,
  .container-lg,
  .container-xl,
  .container-2xl {
    padding: 0 var(--space-lg);
  }
}

@media (min-width: 769px) and (max-width: 1200px) {
  .container,
  .container-lg,
  .container-xl,
  .container-2xl {
    padding: 0 var(--space-xl);
  }
}

/* === Print Styles === */
@media print {
  .nav-mobile,
  .nav-desktop,
  .progress-bar,
  .btn,
  .auth-overlay {
    display: none !important;
  }
  
  .main-content {
    display: block !important;
  }
  
  .persona-content {
    opacity: 1 !important;
    transform: none !important;
    display: block !important;
  }
  
  .section {
    break-inside: avoid;
    page-break-inside: avoid;
  }
  
  h1, h2, h3, h4, h5, h6 {
    break-after: avoid;
    page-break-after: avoid;
  }
  
  body {
    background: white !important;
    color: black !important;
    font-size: 12pt;
    line-height: 1.4;
  }
  
  .section-title {
    color: black !important;
    background: none !important;
    -webkit-text-fill-color: initial !important;
  }
}

/* === High DPI / Retina Display Support === */
@media (-webkit-min-device-pixel-ratio: 2),
       (min-resolution: 192dpi) {
  /* Adjust any pixel-perfect elements for high DPI displays */
  .border-thin {
    border-width: 0.5px;
  }
}