/*
 * Retro UI - Interactive Components
 * Advanced components using HTML5 semantics with CSS styling
 */

/* ================================
 * DROPDOWN COMPONENT (using details/summary)
 * ================================ */
details,
.retro-dropdown,
details[data-retro-dropdown] {
  position: relative;
  display: inline-block;
  margin: var(--retro-spacing-xs);
}

details summary,
.retro-dropdown summary,
details[data-retro-dropdown] summary {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--retro-spacing-sm);
  
  padding: var(--retro-spacing-sm) var(--retro-spacing-md);
  
  font-family: var(--retro-font-family);
  font-size: var(--retro-font-size);
  
  background-color: var(--retro-button-bg);
  color: var(--retro-button-text);
  
  border: var(--retro-border-width) solid var(--retro-button-border);
  border-image: var(--retro-pixel-border);
  border-image-slice: 3;
  border-image-width: 2;
  border-image-repeat: stretch;
  border-image-outset: 2;
  
  box-shadow: 
    var(--retro-shadow-offset) var(--retro-shadow-offset) var(--retro-shadow-blur) var(--retro-shadow-offset) var(--retro-button-shadow),
    calc(-1 * var(--retro-shadow-offset)) calc(-1 * var(--retro-shadow-offset)) var(--retro-shadow-blur) var(--retro-shadow-offset) var(--retro-button-bg);
  
  cursor: pointer;
  list-style: none;
  transition: transform 0.1s ease;
  
  /* Hide default arrow */
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

details summary::-webkit-details-marker,
.retro-dropdown summary::-webkit-details-marker,
details[data-retro-dropdown] summary::-webkit-details-marker {
  display: none;
}

details summary::after,
.retro-dropdown summary::after,
details[data-retro-dropdown] summary::after {
  content: '';
  width: 12px;
  height: 12px;
  background-color: currentColor;
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='512' height='512'%3E%3Cpath d='M127 21h44v43h43v42h43v43h42v43h43v42h42v44h-42v43h-43v42h-42v43h-43v42h-43v43h-44z' fill='currentColor'/%3E%3C/svg%3E");
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='512' height='512'%3E%3Cpath d='M127 21h44v43h43v42h43v43h42v43h43v42h42v44h-42v43h-43v42h-42v43h-43v42h-43v43h-44z' fill='currentColor'/%3E%3C/svg%3E");
  mask-size: contain;
  -webkit-mask-size: contain;
  mask-repeat: no-repeat;
  -webkit-mask-repeat: no-repeat;
  transition: transform 0.2s ease;
}

details[open] summary::after,
.retro-dropdown[open] summary::after,
details[data-retro-dropdown][open] summary::after {
  transform: rotate(90deg);
}

details summary:hover,
.retro-dropdown summary:hover,
details[data-retro-dropdown] summary:hover {
  filter: brightness(1.1);
}

details summary:active,
.retro-dropdown summary:active,
details[data-retro-dropdown] summary:active {
  transform: translateY(var(--retro-shadow-offset));
  box-shadow: 
    var(--retro-shadow-offset) var(--retro-shadow-offset) var(--retro-shadow-blur) var(--retro-shadow-offset) var(--retro-button-bg),
    calc(-1 * var(--retro-shadow-offset)) calc(-1 * var(--retro-shadow-offset)) var(--retro-shadow-blur) var(--retro-shadow-offset) var(--retro-button-bg);
}

.retro-dropdown-content,
details[data-retro-dropdown] .retro-dropdown-content {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 1000;
  
  margin-top: var(--retro-spacing-xs);
  padding: var(--retro-spacing-sm);
  
  background-color: var(--retro-card-bg);
  color: var(--retro-card-text);
  
  border: var(--retro-border-width) solid var(--retro-card-border);
  border-image: var(--retro-pixel-border);
  border-image-slice: 3;
  border-image-width: 2;
  border-image-repeat: stretch;
  border-image-outset: 2;
  
  box-shadow: 
    var(--retro-shadow-offset) var(--retro-shadow-offset) var(--retro-shadow-blur) var(--retro-shadow-offset) var(--retro-card-shadow),
    calc(-1 * var(--retro-shadow-offset)) calc(-1 * var(--retro-shadow-offset)) var(--retro-shadow-blur) var(--retro-shadow-offset) var(--retro-card-bg);
  
  min-width: 200px;
  max-height: 300px;
  overflow-y: auto;
  
  animation: retro-dropdown-appear 0.2s ease;
}

@keyframes retro-dropdown-appear {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.retro-dropdown-item,
details[data-retro-dropdown] .retro-dropdown-item {
  display: block;
  padding: var(--retro-spacing-sm) var(--retro-spacing-md);
  color: inherit;
  text-decoration: none;
  font-family: var(--retro-font-family);
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.retro-dropdown-item:hover,
details[data-retro-dropdown] .retro-dropdown-item:hover {
  background-color: var(--retro-primary-bg);
  color: var(--retro-primary-text);
}

.retro-dropdown-separator,
details[data-retro-dropdown] .retro-dropdown-separator {
  height: 1px;
  background-color: var(--retro-card-border);
  margin: var(--retro-spacing-xs) 0;
}

.retro-dropdown-label,
details[data-retro-dropdown] .retro-dropdown-label {
  font-weight: bold;
  padding: var(--retro-spacing-xs) var(--retro-spacing-md);
  font-size: 0.9em;
  color: var(--retro-secondary-text);
}

/* ================================
 * ACCORDION COMPONENT (using details/summary)
 * ================================ */
.retro-accordion,
.retro-accordion-group {
  margin: var(--retro-spacing-md);
}

.retro-accordion-item,
details[data-retro-accordion] {
  margin-bottom: var(--retro-spacing-sm);
  
  border: var(--retro-border-width) solid var(--retro-card-border);
  border-image: var(--retro-pixel-border);
  border-image-slice: 3;
  border-image-width: 2;
  border-image-repeat: stretch;
  border-image-outset: 2;
  
  box-shadow: 
    var(--retro-shadow-offset) var(--retro-shadow-offset) var(--retro-shadow-blur) var(--retro-shadow-offset) var(--retro-card-shadow),
    calc(-1 * var(--retro-shadow-offset)) calc(-1 * var(--retro-shadow-offset)) var(--retro-shadow-blur) var(--retro-shadow-offset) var(--retro-card-bg);
  
  background-color: var(--retro-card-bg);
}

.retro-accordion-item summary,
details[data-retro-accordion] summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  
  padding: var(--retro-spacing-md);
  
  font-family: var(--retro-font-family);
  font-size: var(--retro-font-size);
  font-weight: bold;
  
  background-color: var(--retro-secondary-bg);
  color: var(--retro-secondary-text);
  
  cursor: pointer;
  list-style: none;
  
  border-bottom: var(--retro-border-width) solid var(--retro-card-border);
  
  transition: background-color 0.2s ease;
  
  /* Hide default arrow */
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

.retro-accordion-item summary::-webkit-details-marker,
details[data-retro-accordion] summary::-webkit-details-marker {
  display: none;
}

.retro-accordion-item summary::after,
details[data-retro-accordion] summary::after {
  content: '';
  width: 16px;
  height: 16px;
  background-color: currentColor;
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='512' height='512'%3E%3Cpath d='M127 21h44v43h43v42h43v43h42v43h43v42h42v44h-42v43h-43v42h-42v43h-43v42h-43v43h-44z' fill='currentColor'/%3E%3C/svg%3E");
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='512' height='512'%3E%3Cpath d='M127 21h44v43h43v42h43v43h42v43h43v42h42v44h-42v43h-43v42h-42v43h-43v42h-43v43h-44z' fill='currentColor'/%3E%3C/svg%3E");
  mask-size: contain;
  -webkit-mask-size: contain;
  mask-repeat: no-repeat;
  -webkit-mask-repeat: no-repeat;
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.retro-accordion-item[open] summary::after,
details[data-retro-accordion][open] summary::after {
  transform: rotate(90deg);
}

.retro-accordion-item summary:hover,
details[data-retro-accordion] summary:hover {
  background-color: var(--retro-primary-bg);
  color: var(--retro-primary-text);
}

.retro-accordion-item[open] summary,
details[data-retro-accordion][open] summary {
  border-bottom-color: var(--retro-card-border);
}

.retro-accordion-content,
details[data-retro-accordion] .retro-accordion-content {
  padding: var(--retro-spacing-md);
  font-family: var(--retro-font-family);
  line-height: var(--retro-line-height);
  
  animation: retro-accordion-expand 0.3s ease;
}

@keyframes retro-accordion-expand {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ================================
 * MODAL/POPUP COMPONENT (using :target)
 * ================================ */
.retro-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 9999;
  
  display: flex;
  align-items: center;
  justify-content: center;
  
  /* Hidden by default */
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.retro-modal:target {
  opacity: 1;
  visibility: visible;
}

.retro-modal-content {
  position: relative;
  max-width: 90%;
  max-height: 90%;
  
  background-color: var(--retro-card-bg);
  color: var(--retro-card-text);
  
  border: var(--retro-border-width) solid var(--retro-card-border);
  border-image: var(--retro-pixel-border);
  border-image-slice: 3;
  border-image-width: 2;
  border-image-repeat: stretch;
  border-image-outset: 2;
  
  box-shadow: 
    var(--retro-shadow-offset) var(--retro-shadow-offset) var(--retro-shadow-blur) var(--retro-shadow-offset) var(--retro-card-shadow),
    calc(-1 * var(--retro-shadow-offset)) calc(-1 * var(--retro-shadow-offset)) var(--retro-shadow-blur) var(--retro-shadow-offset) var(--retro-card-bg);
  
  overflow-y: auto;
  
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.retro-modal:target .retro-modal-content {
  transform: scale(1);
}

.retro-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--retro-spacing-md);
  
  background-color: var(--retro-secondary-bg);
  color: var(--retro-secondary-text);
  
  border-bottom: var(--retro-border-width) solid var(--retro-card-border);
  
  font-family: var(--retro-font-family);
  font-weight: bold;
}

.retro-modal-title {
  margin: 0;
  font-size: 1.2em;
}

.retro-modal-close {
  background: none;
  border: none;
  font-size: 1.5em;
  cursor: pointer;
  color: inherit;
  padding: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.retro-modal-close:hover {
  color: var(--retro-primary-bg);
}

.retro-modal-body {
  padding: var(--retro-spacing-md);
  font-family: var(--retro-font-family);
  line-height: var(--retro-line-height);
}

.retro-modal-footer {
  padding: var(--retro-spacing-md);
  text-align: right;
  
  border-top: var(--retro-border-width) solid var(--retro-card-border);
  
  background-color: var(--retro-secondary-bg);
}

/* ================================
 * RESPONSIVE ADJUSTMENTS
 * ================================ */
@media (max-width: 768px) {
  .retro-dropdown-content,
  details[data-retro-dropdown] .retro-dropdown-content {
    min-width: 150px;
    max-height: 200px;
  }
  
  .retro-accordion-item summary,
  details[data-retro-accordion] summary {
    padding: var(--retro-spacing-sm);
  }
  
  .retro-accordion-content,
  details[data-retro-accordion] .retro-accordion-content {
    padding: var(--retro-spacing-sm);
  }
  
  .retro-modal-content {
    max-width: 95%;
    max-height: 95%;
  }
  
  .retro-modal-header,
  .retro-modal-body,
  .retro-modal-footer {
    padding: var(--retro-spacing-sm);
  }
}