/**
 * SLIDE BACKGROUND GENERATOR — Styles
 * Vanilla CSS for ACF Block
 */

.slide-generator {
  --sg-surface: #242424;
  --sg-border: #333;
  --sg-text: #e5e5e5;
  --sg-text-muted: #888;

  --sg-radius: 10px;
  --sg-radius-sm: 6px;

  --sg-button-width: 77px;

  position: relative;
  transition: all 0.2s ease-in-out;
}

body.slides-loading .slide-generator{
  opacity: 0.8;
  filter: blur(3px);
  pointer-events: none;
  cursor: wait;
}


/* ============================================================================
   PROGRESS BAR OVERLAY
============================================================================ */

.sg-progress-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

body.slides-loading .sg-progress-overlay {
  opacity: 1;
}

.sg-progress-container {
  width: 500px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.sg-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--wp--preset--color--carnelian, #B31B1B), #e74c3c);
  border-radius: 3px;
  transition: width 0.3s ease-out;
}

.sg-progress-text {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}


/* ============================================================================
   TABS
============================================================================ */

.sg-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--sg-border);
}

.sg-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  border: none;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--sg-text-muted);
  font-size: 14px;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  margin-bottom: -1px;
}

.sg-tab:hover {
  color: var(--wp--preset--color--carnelian);
}

.sg-tab.is-active {
  color: white;
  background: var(--wp--preset--color--carnelian);
  border-bottom-color: var(--wp--preset--color--carnelian);
}

.sg-tab svg {
  opacity: 0.6;
  transition: opacity 0.15s;
}

.sg-tab:hover svg,
.sg-tab.is-active svg {
  opacity: 1;
}

.sg-tab-content {
  display: none;
}

.sg-tab-content.is-active {
  display: block;
  animation: sg-fade-in 0.2s ease-out;
}

@keyframes sg-fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}


/* ============================================================================
   CONTROLS LAYOUT
============================================================================ */

.sg-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px 20px;
  margin-bottom: 24px;
}

.sg-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sg-label {
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  color: var(--sg-text-muted);
}

/* ============================================================================
   PALETTE AND PATTERN PICKER
============================================================================ */

.sg-pattern-grid,
.sg-palette-grid {
  display: flex;
  gap: 8px;
}

.sg-pattern-btn,
.sg-palette-btn {
  padding: 0;
  border: 2px solid transparent;
  border-radius: var(--sg-radius-sm);
  cursor: pointer;
  transition: all 0.15s;
  outline: none;
}

.sg-palette-btn{
  width: var(--sg-button-width);
  aspect-ratio: 1/1;
}

.sg-pattern-btn {
  height: var(--sg-button-width);
  aspect-ratio: 2.3/1;
}

.sg-pattern-btn:hover,
.sg-palette-btn:hover {
  transform: scale(1.05);
}

.sg-pattern-btn:focus,
.sg-palette-btn:focus {
  outline: 2px solid var(--wp--preset--color--carnelian);
  outline-offset: 2px;
}

.sg-bg-btn.is-selected,
.sg-pattern-btn.is-selected,
.sg-palette-btn.is-selected {
  border-color: var(--wp--preset--color--carnelian);
  box-shadow: rgba(0, 0, 0, 0.25) 0px 14px 28px, rgba(0, 0, 0, 0.22) 0px 10px 10px;
}

.sg-pattern-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: var(--sg-radius-sm);
}

.sg-pattern-btn.is-selected{
  border-radius: calc(var(--sg-radius-sm) + 2px);
}


/* ============================================================================
   BACKGROUND TOGGLE
============================================================================ */

.sg-bg-toggle {
  display: flex;
  gap: 8px;
}

.sg-bg-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 2px solid var(--sg-border);
  border-radius: var(--sg-radius-sm);
  background: var(--sg-surface);
  color: var(--sg-text);
  font-family: inherit;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  outline: none;
}

.sg-bg-btn:hover {
  border-color: #555;
}

.sg-bg-btn:focus {
  outline: 2px solid var(--wp--preset--color--carnelian);
  outline-offset: 2px;
}

.sg-bg-btn.is-selected {
  border-color: var(--wp--preset--color--carnelian);
  background: rgba(196, 92, 92, 0.15);
  color: var(--wp--preset--color--dark-gray);
}

.sg-bg-preview {
  width: 20px;
  height: 20px;
  border-radius: 3px;
  border: 1px solid var(--sg-border);
  flex-shrink: 0;
}

.sg-bg-preview--dark {
  background: linear-gradient(0deg, rgba(10, 6, 6, 1) 0%, rgba(51, 51, 51, 1) 100%);
}

.sg-bg-preview--white {
  background: #ffffff;
}

.sg-bg-preview--red {
  background: #B31B1B;
}

/* Disabled palette when Cornell Red is selected */
.sg-palette-grid.is-disabled {
  opacity: 0.3;
  pointer-events: none;
}

.sg-palette-grid.is-disabled .sg-palette-btn {
  cursor: not-allowed;
}


/* ============================================================================
   LOGO TOGGLE (button style)
============================================================================ */

.sg-logo-section {
  justify-content: flex-start;
}

.sg-logo-toggle {
  display: flex;
  gap: 8px;
}

.sg-logo-btn {
  min-width: 60px;
  justify-content: center;
}


/* ============================================================================
   DIVIDER
============================================================================ */

.sg-divider {
  border: none;
  border-top: 1px solid var(--sg-border);
  margin: 0 0 24px;
}


/* ============================================================================
   PREVIEW SECTION
============================================================================ */

.sg-preview-section {
  margin-top: 3em;
  margin-bottom: 1em;
}

.sg-preview-hint {
  font-size: 13px;
  color: var(--sg-text-muted);
  margin: 4px 0 0;
}

.sg-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 12px;
  transition: opacity 0.2s;
}

/* Video backgrounds: 3 columns (6 items = 2 rows) */
.sg-video-preview-grid {
  grid-template-columns: repeat(3, 1fr);
}

/* Ribbon patterns: 2 columns (4 items = 2 rows) */
.sg-ribbon-preview-grid {
  grid-template-columns: repeat(2, 1fr);
}

.sg-preview-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sg-preview-label {
  font-size: 11px;
  color: var(--sg-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sg-preview-wrapper {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: var(--sg-surface);
  aspect-ratio: 16/9;
  box-shadow: rgba(17, 17, 26, 0.05) 0px 4px 16px, rgba(17, 17, 26, 0.05) 0px 8px 32px;
}

/* Transparent background checkerboard for ribbon previews */
.sg-preview-wrapper--transparent {
  background: 
    linear-gradient(45deg, #2a2a2a 25%, transparent 25%),
    linear-gradient(-45deg, #2a2a2a 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #2a2a2a 75%),
    linear-gradient(-45deg, transparent 75%, #2a2a2a 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
  background-color: #1a1a1a;
  aspect-ratio: auto;
  min-height: 140px;
}

.sg-preview-wrapper--transparent .sg-preview-img {
  object-fit: contain;
  padding: 12px;
}

.sg-preview-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.sg-preview-download {
  position: absolute;
  bottom: 8px;
  right: 8px;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.6);
  border: none;
  border-radius: 4px;
  color: #fff;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s, background 0.15s;
  padding: 0;
}

.sg-preview-wrapper:hover .sg-preview-download {
  opacity: 1;
}

.sg-preview-download:hover {
  background: rgba(0,0,0,0.8);
}

.sg-preview-download:focus {
  opacity: 1;
  outline: 2px solid var(--wp--preset--color--carnelian);
  outline-offset: 2px;
}

.sg-button-toolbar{
  margin-top: 30px;
  justify-content: flex-end;
}


/* ============================================================================
   RESPONSIVE
============================================================================ */

@media (max-width: 768px) {
  .sg-tabs {
    gap: 0;
  }
  
  .sg-tab {
    padding: 12px 16px;
    font-size: 13px;
  }
  
  .sg-video-preview-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .sg-controls {
    grid-template-columns: 1fr;
  }
  
  .sg-preview-grid,
  .sg-video-preview-grid,
  .sg-ribbon-preview-grid {
    grid-template-columns: 1fr;
  }
  
  .sg-actions {
    flex-direction: column;
  }
  
  .sg-btn {
    justify-content: center;
  }
  
  .sg-palette-grid,
  .sg-pattern-grid {
    flex-wrap: wrap;
  }
  
  .sg-tabs {
    flex-wrap: wrap;
  }
  
  .sg-tab {
    flex: 1;
    justify-content: center;
    padding: 10px 8px;
    min-width: 33%;
  }
  
  .sg-tab svg {
    display: none;
  }
}