/* =====================================================
   color-palette.css — Styling for pre-generated palettes
   Optimized for large desktop viewports
   ===================================================== */

.dt-main {
  padding-top: 0;
  min-height: calc(100vh - 70px - 100px);
  background-color: var(--bg-primary);
}

.dt-section {
  padding: 20px 0 60px;
}



.dt-tool-header {
  margin-bottom: 32px;
}

.dt-back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--purple-500);
  text-decoration: none;
  margin-bottom: 16px;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

@media (hover: hover) {
.dt-back-link:hover {
    color: var(--lavender-300);
    transform: translateX(-2px);
  }
}

.dt-back-link svg, .dt-back-link img ,.dt-back-link .icon, .dt-back-link .icon {
  width: 16px;
  height: 16px;
}

.dt-title-large {
  font-size: clamp(2rem, 4.5vw, 2.7rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.dt-subtitle-text {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0;
  line-height: 1.5;
}

/* Suite Tab Navigation */
.dt-suite-nav {
  display: flex;
  gap: 8px;
  margin-bottom: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 6px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  
  /* Responsive horizontal scrollable tabs */
  width: fit-content;
  max-width: 100%;
  overflow-x: auto;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
  -ms-overflow-style: none;  /* IE/Edge */
  scrollbar-width: none;  /* Firefox */
}

/* Hide scrollbar for Chrome/Safari/Opera */
.dt-suite-nav::-webkit-scrollbar {
  display: none;
}

.dt-nav-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
  text-decoration: none;
  flex-shrink: 0; /* Prevent squashing on scrollable layouts */
}

.dt-nav-tab svg, .dt-nav-tab img ,.dt-nav-tab .icon, .dt-nav-tab .icon {
  width: 16px;
  height: 16px;
}

@media (hover: hover) {
.dt-nav-tab:hover {
    color: var(--purple-500);
    background: rgba(139, 92, 246, 0.04);
  }
}

.dt-nav-tab.active {
  background: var(--gradient-primary);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

/* Workspace Block */
.dt-workspace-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  box-shadow: var(--shadow-md);
  min-height: 600px;
}

/* Toolbar: Search & Filters */
.dt-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 24px;
}

.dt-search-box {
  position: relative;
  width: 360px;
}
.dt-search-box svg, .dt-search-box img ,.dt-search-box .icon, .dt-search-box .icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.dt-search-box:focus-within svg, .dt-search-box:focus-within img ,.dt-search-box:focus-within .icon, .dt-search-box:focus-within .icon {
  color: var(--purple-500);
}

.dt-search-box input {
  width: 100%;
  padding: 12px 16px 12px 44px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.92rem;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.dt-search-box input:focus {
  border-color: var(--purple-500);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

.dt-category-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-chip {
  background: var(--bg-secondary);
  border: 1.5px solid var(--border);
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.82rem;
  cursor: pointer;
  transition: color var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

@media (hover: hover) {
.filter-chip:hover {
    border-color: var(--purple-400);
    color: var(--purple-600);
    transform: translateY(-1px);
  }
}

.filter-chip.active {
  background: var(--gradient-primary);
  color: #ffffff;
  border-color: transparent;
  box-shadow: var(--shadow-sm);
}

/* Palettes Cards Grid */
.dt-palettes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 32px;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  will-change: transform;
}

.dt-palette-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  display: flex;
  flex-direction: column;
  isolation: isolate;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  will-change: transform;
}

@media (hover: hover) {
.dt-palette-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(124, 58, 237, 0.12);
    border-color: rgba(124, 58, 237, 0.3);
  }
}

/* 5-Color Bands Row */
.dt-palette-bands {
  display: flex;
  height: 130px;
  width: 100%;
  overflow: hidden;
  border-top-left-radius: var(--radius-md);
  border-top-right-radius: var(--radius-md);
  background: #110726;
}

.dt-color-band {
  flex: 1;
  height: 100%;
  cursor: pointer;
  position: relative;
  transition: flex-grow 0.35s cubic-bezier(0.25, 1, 0.5, 1);
  margin-right: -0.5px;
}

.dt-color-band:last-child {
  margin-right: 0;
}

@media (hover: hover) {
  .dt-color-band:hover {
    flex-grow: 1.5;
    z-index: 2;
  }
}

.dt-color-band-hex {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(13, 5, 28, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 3px 6px;
  border-radius: 4px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

@media (hover: hover) {
.dt-color-band:hover .dt-color-band-hex {
    opacity: 1;
    transform: translateX(-50%) translateY(-2px);
  }
}

/* Card Metadata */
.dt-palette-meta {
  padding: 14px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
}

.dt-palette-info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.dt-palette-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding-right: 8px;
}

.dt-palette-category {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--purple-500);
  background: rgba(139, 92, 246, 0.08);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.03em;
  flex-shrink: 0;
}

.dt-palette-actions {
  display: flex;
  gap: 8px;
  border-top: 1px solid var(--border);
  padding-top: 10px;
  justify-content: flex-end;
}

.card-action-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: color var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

@media (hover: hover) {
.card-action-btn:hover {
    background: rgba(139, 92, 246, 0.08);
    border-color: var(--purple-500);
    color: var(--purple-500);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(139, 92, 246, 0.15);
  }
}

.card-action-btn svg, .card-action-btn img ,.card-action-btn .icon, .card-action-btn .icon {
  width: 14px;
  height: 14px;
}

@media (max-width: 992px) {
.dt-section {
    padding: 24px 0 40px;
  }



  .dt-tool-header {
    margin-bottom: 16px;
  }

  .dt-suite-nav {
    margin-bottom: 16px;
  }

  .dt-workspace-block {
    padding: 24px;
    min-height: auto;
  }

  .dt-toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 16px;
  }

  .dt-search-box {
    width: 100%;
  }

  .dt-category-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    width: 100%;
    padding: 4px 0;
  }

  .filter-chip {
    flex-shrink: 0;
    padding: 6px 14px;
    font-size: 0.8rem;
  }

  .dt-color-band {
    transition: none !important;
    box-shadow: none !important;
    /* Do not override transform here to preserve translateZ(0) compositor layer */
  }
  
  .dt-palette-card {
    transition: none !important;
    box-shadow: none !important;
    /* Do not override transform here to preserve translateZ(0) compositor layer */
  }
  
  /* Make cards flat and standard */
  .glass-card {
    background: var(--bg-card) !important;
    border: 1px solid var(--border) !important;
  }

  .dt-palette-card {
    background: var(--bg-secondary) !important;
    border: 1px solid var(--border) !important;
  }
}

@media (max-width: 768px) {
.dt-suite-nav {
    width: auto !important;
    max-width: 100% !important;
    gap: 6px !important;
    padding: 4px 6px !important;
    box-sizing: border-box !important;
    overflow-x: auto !important;
    white-space: nowrap !important;
    -webkit-overflow-scrolling: touch !important;
  }
  .dt-nav-tab {
    flex: 0 0 auto !important;
    justify-content: center !important;
    padding: 8px 14px !important;
    font-size: 0.84rem !important;
    gap: 6px !important;
    text-overflow: clip !important;
    overflow: visible !important;
    white-space: nowrap !important;
  }
  .dt-nav-tab svg, .dt-nav-tab img, .dt-nav-tab .icon {
    width: 15px !important;
    height: 15px !important;
    flex-shrink: 0 !important;
  }

  .dt-title-large {
    font-size: 1.8rem;
  }
  
  .dt-subtitle-text {
    font-size: 0.95rem;
  }

  /* Centered copy acknowledgment toast for mobile/tablet */
  .dt-toast {
    bottom: 20px;
    left: 50%;
    right: auto;
    transform: translate(-50%, 12px);
    width: max-content;
    max-width: calc(100% - 32px);
    justify-content: center;
  }
  .dt-toast.show {
    transform: translate(-50%, 0);
  }
}

@media (max-width: 992px) {
  .dt-palettes-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .dt-workspace-block {
    padding: 20px 16px;
  }

  .dt-palettes-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

@media (max-width: 576px) {
  .dt-section {
    padding: 16px 0 30px;
  }



  .dt-workspace-block {
    padding: 16px 12px;
    border-radius: var(--radius-md);
  }

  .dt-palettes-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  
  .dt-palette-bands {
    height: 110px; /* slightly shorter bands on small mobile */
  }

  .dt-palette-meta {
    padding: 10px 12px;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .dt-palettes-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
}

/* Copy Toast message */
.dt-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1.5px solid var(--border);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 9999;
  pointer-events: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.dt-toast::before {
  content: '';
  display: inline-block;
  width: 16px;
  height: 16px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238b5cf6' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  flex-shrink: 0;
}

.dt-toast.show {
  opacity: 1;
  transform: translateY(0);
}

.dt-load-more-container {
  display: flex;
  justify-content: center;
  margin-top: 32px;
  width: 100%;
}


/* Neutralize legacy tool toast classes to defer to global toast system */
.copy-toast, .qr-toast, .dt-toast, .toast-msg { display: none !important; }