frontend/src/css/components.css.bak

/* Component-Specific Responsive Styles */

/* Button Responsive Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3) var(--spacing-6);
  border-radius: var(--radius-lg);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-base);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  white-space: nowrap;
  min-height: 44px; /* Minimum touch target size */
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-sm {
  padding: var(--spacing-2) var(--spacing-4);
  font-size: var(--font-size-sm);
  min-height: 40px;
}

.btn-lg {
  padding: var(--spacing-4) var(--spacing-8);
  font-size: var(--font-size-lg);
  min-height: 48px;
}

.btn-full {
  width: 100%;
}

@media (max-width: 639px) {
  .btn {
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-sm);
  }
  
  .btn-lg {
    padding: var(--spacing-4) var(--spacing-6);
    font-size: var(--font-size-base);
  }
}

/* Card Responsive Styles */
.card {
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-header {
  padding: var(--spacing-6);
  border-bottom: 1px solid var(--color-secondary-200);
}

.card-body {
  padding: var(--spacing-6);
}

.card-footer {
  padding: var(--spacing-6);
  border-top: 1px solid var(--color-secondary-200);
}

@media (max-width: 639px) {
  .card {
    border-radius: var(--radius-lg);
  }
  
  .card-header,
  .card-body,
  .card-footer {
    padding: var(--spacing-4);
  }
}

/* Form Responsive Styles */
.form-group {
  margin-bottom: var(--spacing-4);
}

.form-label {
  display: block;
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-2);
  color: var(--color-secondary-700);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-3);
  border: 1px solid var(--color-secondary-300);
  border-radius: var(--radius);
  font-size: var(--font-size-base);
  transition: all var(--transition-normal);
  background: white;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px rgba(255, 128, 128, 0.1);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  background: var(--color-accent-100);
  cursor: not-allowed;
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-4);
}

@media (min-width: 768px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .form-row {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Navigation Responsive Styles */
.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.nav-vertical {
  flex-direction: column;
  align-items: stretch;
}

.nav-item {
  padding: var(--spacing-3) var(--spacing-4);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--color-secondary-600);
  transition: all var(--transition-normal);
  font-weight: var(--font-weight-medium);
}

.nav-item:hover {
  background: var(--color-accent-100);
  color: var(--color-secondary-900);
}

.nav-item.active {
  background: var(--color-primary-100);
  color: var(--color-primary-700);
}

.nav-item-icon {
  width: 20px;
  height: 20px;
  margin-right: var(--spacing-2);
}

@media (max-width: 767px) {
  .nav {
    flex-direction: column;
    gap: var(--spacing-2);
  }
  
  .nav-item {
    padding: var(--spacing-3) var(--spacing-3);
    display: flex;
    align-items: center;
    justify-content: flex-start;
  }
  
  .nav-item-icon {
    margin-right: var(--spacing-3);
  }
}

/* Header Responsive Styles */
.header {
  background: white;
  border-bottom: 1px solid var(--color-secondary-200);
  padding: var(--spacing-4) 0;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 4rem;
  z-index: var(--z-40);
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.95);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header-logo {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-600);
  text-decoration: none;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-6);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: var(--spacing-2);
  background: none;
  border: none;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--color-secondary-700);
  margin: 2px 0;
  transition: all var(--transition-normal);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

@media (max-width: 767px) {
  .hamburger {
    display: flex;
  }
  
  .header-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: white;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-8);
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
    z-index: var(--z-30);
  }
  
  .header-nav.active {
    transform: translateX(0);
  }
  
  .header-actions {
    display: none;
  }
}

/* Sidebar Responsive Styles */
.sidebar {
  width: 250px;
  background: white;
  border-right: 1px solid var(--color-secondary-200);
  height: calc(100vh - 4rem);
  position: fixed;
  top: 4rem;
  left: 0;
  overflow-y: auto;
  transition: all var(--transition-slow);
  z-index: var(--z-50); /* Higher than header */
}

.sidebar.collapsed {
  width: 70px;
}

.sidebar-nav {
  padding: var(--spacing-4) 0;
}

.sidebar-item {
  display: flex;
  align-items: center;
  padding: var(--spacing-3) var(--spacing-4);
  color: var(--color-secondary-600);
  text-decoration: none;
  transition: all var(--transition-normal);
  position: relative;
}

.sidebar-item:hover {
  background: var(--color-accent-50);
  color: var(--color-secondary-900);
}

.sidebar-item.active {
  background: var(--color-primary-50);
  color: var(--color-primary-700);
}

.sidebar-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-primary-600);
}

.sidebar-icon {
  width: 20px;
  height: 20px;
  margin-right: var(--spacing-3);
  flex-shrink: 0;
}

.sidebar-text {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar.collapsed .sidebar-text {
  display: none;
}

@media (max-width: 1023px) {
  .sidebar {
    position: fixed;
    top: 4rem;
    left: 0;
    height: calc(100vh - 4rem);
    transform: translateX(-100%);
    z-index: var(--z-50); /* Higher than header */
  }
  
  .sidebar.active {
    transform: translateX(0);
  }
  
  .sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-20);
    display: none;
  }
  
  .sidebar-overlay.active {
    display: block;
  }
}

@media (max-width: 767px) {
  .sidebar {
    width: 100%;
    max-width: 300px;
  }
}

/* Modal Responsive Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-50);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-slow);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: white;
  border-radius: var(--radius-xl);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9);
  transition: all var(--transition-slow);
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal-header {
  padding: var(--spacing-6);
  border-bottom: 1px solid var(--color-secondary-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-body {
  padding: var(--spacing-6);
}

.modal-footer {
  padding: var(--spacing-6);
  border-top: 1px solid var(--color-secondary-200);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-4);
}

@media (max-width: 639px) {
  .modal {
    width: 95%;
    max-height: 95vh;
  }
  
  .modal-header,
  .modal-body,
  .modal-footer {
    padding: var(--spacing-4);
  }
}

/* Table Responsive Styles */
.table-container {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.table th,
.table td {
  padding: var(--spacing-4);
  text-align: left;
  border-bottom: 1px solid var(--color-secondary-200);
}

.table th {
  background: var(--color-accent-50);
  font-weight: var(--font-weight-semibold);
  color: var(--color-secondary-700);
}

.table tr:hover {
  background: var(--color-accent-50);
}

.table-responsive {
  display: block;
  width: 100%;
  overflow-x: auto;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
}

@media (max-width: 767px) {
  .table-container {
    margin: 0 -var(--spacing-4);
    padding: 0 var(--spacing-4);
  }
  
  .table th,
  .table td {
    padding: var(--spacing-3) var(--spacing-2);
    font-size: var(--font-size-sm);
  }
}

/* Grid Layout Responsive Styles */
.grid-responsive {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-6);
}

@media (max-width: 639px) {
  .grid-responsive {
    grid-template-columns: 1fr;
    gap: var(--spacing-4);
  }
}

@media (min-width: 640px) and (max-width: 1023px) {
  .grid-responsive {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

@media (min-width: 1024px) {
  .grid-responsive {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  }
}

/* Utility Classes for Responsive Design */
/* Responsive visibility */
@media (max-width: 639px) {
  .hidden-xs { display: none !important; }
}

@media (min-width: 640px) and (max-width: 767px) {
  .hidden-sm { display: none !important; }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .hidden-md { display: none !important; }
}

@media (min-width: 1024px) and (max-width: 1279px) {
  .hidden-lg { display: none !important; }
}

@media (min-width: 1280px) and (max-width: 1535px) {
  .hidden-xl { display: none !important; }
}

@media (min-width: 1536px) {
  .hidden-2xl { display: none !important; }
}

/* Responsive text truncation */
.text-truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.text-truncate-xs {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: var(--font-size-xs);
}

.text-truncate-sm {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: var(--font-size-sm);
}

.text-truncate-md {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: var(--font-size-base);
}

.text-truncate-lg {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: var(--font-size-lg);
}

.text-truncate-xl {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: var(--font-size-xl);
}

/* Responsive spacing for mobile */
@media (max-width: 639px) {
  .mobile-spacing-xs { gap: var(--spacing-2); }
  .mobile-spacing-sm { gap: var(--spacing-3); }
  .mobile-spacing-md { gap: var(--spacing-4); }
  .mobile-spacing-lg { gap: var(--spacing-6); }
  .mobile-spacing-xl { gap: var(--spacing-8); }
  
  .mobile-p-xs { padding: var(--spacing-2); }
  .mobile-p-sm { padding: var(--spacing-3); }
  .mobile-p-md { padding: var(--spacing-4); }
  .mobile-p-lg { padding: var(--spacing-6); }
  .mobile-p-xl { padding: var(--spacing-8); }
  
  .mobile-m-xs { margin: var(--spacing-2); }
  .mobile-m-sm { margin: var(--spacing-3); }
  .mobile-m-md { margin: var(--spacing-4); }
  .mobile-m-lg { margin: var(--spacing-6); }
  .mobile-m-xl { margin: var(--spacing-8); }
}

/* Touch-friendly interactive elements */
@media (hover: none) and (pointer: coarse) {
  .btn,
  .nav-item,
  .sidebar-item,
  .card {
    -webkit-tap-highlight-color: transparent;
  }
  
  .btn:active,
  .nav-item:active,
  .sidebar-item:active,
  .card:active {
    transform: scale(0.98);
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .card,
  .header,
  .sidebar,
  .modal {
    border: 2px solid currentColor;
  }
  
  .btn {
    border: 2px solid currentColor;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}