/* ===== BUTTON STYLES ===== */

/* ===== BASE BUTTON ===== */
/* Use --bg-tertiary so buttons stand out against page background (--bg-primary) */
.btn,
button.btn,
#loadMoreBtn {
  padding: var(--spacing-lg) var(--spacing-2xl);
  background: var(--bg-tertiary);
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  color: var(--color-text-primary);
  min-height: var(--touch-target);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-base);
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
}

/* Load More Button - API Fetch State */
#loadMoreBtn.api-fetch {
  background: var(--color-accent-red);
  border-color: var(--color-accent-red);
  color: var(--color-text-light);
  box-shadow: none;
}

#loadMoreBtn.api-fetch:hover {
  background: var(--color-accent-red-light);
  border-color: var(--color-accent-red-light);
}

/* Pagination exhausted — visible message (not hidden) */
#loadMoreBtn.load-more-no-more,
#loadMoreBtn.load-more-no-more.btn-primary {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-secondary);
  color: var(--color-accent-red, #e57373);
  font-weight: var(--font-weight-semibold);
  cursor: default;
  box-shadow: none;
}

#loadMoreBtn.load-more-no-more:hover,
#loadMoreBtn.load-more-no-more.btn-primary:hover,
#loadMoreBtn.load-more-no-more:active,
#loadMoreBtn.load-more-no-more:focus {
  background: var(--bg-tertiary);
  border-color: var(--border-secondary);
  color: var(--color-accent-red, #e57373);
  transform: none !important;
  box-shadow: none;
}

.btn:hover,
button.btn:hover,
#loadMoreBtn:hover {
  background: var(--color-primary-subtle);
}

/* ===== PRIMARY BUTTONS ===== */
.btn-primary {
  background: var(--color-primary);
  border: none;
  color: var(--color-text-light);
  box-shadow: none;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
}

/* Primary icon-only button (Discovery search, Keywords search, etc.) - consolidated style */
.btn-primary-icon,
.search-btn,
.keywords-search-btn {
  background: var(--color-primary);
  color: var(--color-text-light);
  border: none;
  box-shadow: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-lg);
  min-width: var(--touch-target);
  min-height: var(--touch-target);
}

.btn-primary-icon:hover,
.search-btn:hover,
.keywords-search-btn:hover {
  background: var(--color-primary-hover);
}

.btn-primary-icon i[data-lucide],
.btn-primary-icon svg,
.search-btn i[data-lucide],
.search-btn svg,
.keywords-search-btn i[data-lucide],
.keywords-search-btn svg {
  width: var(--icon-lg);
  height: var(--icon-lg);
}

#reverseSortBtn {
  width: var(--touch-target);
  height: var(--touch-target);
  min-width: var(--touch-target);
  min-height: var(--touch-target);
  padding: 0;
  background: var(--color-primary);
  border: none;
  color: var(--color-text-light);
  border-radius: var(--radius-lg);
  box-shadow: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

#reverseSortBtn svg {
  display: block;
  margin: 0 auto;
}

#reverseSortBtn:hover {
  background: var(--color-primary-hover);
}

/* Analyze button - always primary */
.top-row>.control-group.inline:first-child .btn,
.top-row>.control-group.inline:first-child button.btn {
  background: var(--color-primary);
  color: var(--color-text-light);
  border: none;
}

.top-row>.control-group.inline:first-child .btn:hover,
.top-row>.control-group.inline:first-child button.btn:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-primary);
}

/* Icon styles for blue buttons */
#reverseSortBtn i[data-lucide],
#advancedToggle i[data-lucide] {
  width: var(--icon-md);
  height: var(--icon-md);
  margin: 0;
  stroke-width: 2;
}

#reverseSortBtn i[data-lucide] svg,
#reverseSortBtn i[data-lucide] svg *,
#advancedToggle i[data-lucide] svg,
#advancedToggle i[data-lucide] svg * {
  color: #ffffff !important;
  stroke: #ffffff !important;
  fill: none !important;
}

/* ===== BUTTON VARIANTS ===== */

/* Success/Saved Button */
.btn.saved,
.btn-enhanced.saved,
.btn-primary.saved {
  background: var(--color-accent-green);
  color: var(--color-text-light);
}

.btn.saved:hover,
.btn-enhanced.saved:hover {
  background: var(--color-accent-green-light);
  box-shadow: var(--shadow-success);
}

/* Danger Button */
.btn-danger {
  background: var(--color-accent-red);
  color: var(--color-text-light);
  border: none;
}

.btn-danger:hover {
  background: var(--color-accent-red-light);
  box-shadow: var(--shadow-danger);
}

/* Competitive Button (Purple) */
.btn-competitive {
  background: var(--color-secondary);
  color: var(--color-text-light);
  border: none;
}

.btn-competitive:hover {
  background: var(--color-secondary-light);
  box-shadow: none;
}

/* ===== BUTTON SIZES ===== */
.btn-sm {
  padding: 6px 10px;
  font-size: var(--font-size-sm);
  height: auto;
  border-radius: var(--radius-md);
}

/* Enhanced Button (with icon) */
.btn-enhanced {
  padding: 8px 14px;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-lg);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  color: var(--color-text-light);
  transform: translateY(0) scale(1);
  will-change: transform, box-shadow;
  height: 34px;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  justify-content: center;
  min-width: 120px;
  font-size: var(--font-size-base);
}

.btn-enhanced:hover {
  background: var(--color-primary-hover);
}

/* ===== SPECIAL BUTTONS ===== */

/* Gallery Toggle - use --bg-hover so it stands out against toolbar */
#galleryToggle {
  padding: 8px 14px;
  background: var(--bg-hover);
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  color: var(--color-text-primary);
  height: 34px;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-base);
}

#galleryToggle:hover {
  background: var(--bg-selected);
  border-color: transparent;
}

/* Advanced Toggle */
#advancedToggle {
  min-width: 38px;
  padding: 8px 12px;
  background: var(--color-primary);
  border: none;
  color: var(--color-text-light);
  border-radius: var(--radius-lg);
}

#advancedToggle:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-primary);
}

/* ===== TAB BUTTONS ===== */
.sub-tab-btn {
  flex: 1;
  padding: 10px 18px;
  background: transparent;
  border: none;
  color: var(--color-text-tertiary);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-md);
  border-radius: var(--radius-lg);
  cursor: pointer;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.sub-tab-btn i[data-lucide],
.sub-tab-btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin: 0;
  order: -1;
  opacity: 0.9;
  display: block;
}

.sub-tab-btn:hover {
  color: var(--color-text-primary);
  background: var(--bg-hover);
  box-shadow: none;
}

.sub-tab-btn.active {
  color: var(--color-text-light);
  background: var(--color-primary);
  box-shadow: var(--shadow-primary);
}

/* Tab Buttons */
.tab-btn {
  flex: 1;
  padding: 12px 20px;
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-lg);
  cursor: pointer;
  position: relative;
}

.tab-btn:hover {
  color: var(--color-text-light);
  background: var(--bg-hover);
}

.tab-btn.active {
  color: var(--color-text-light);
  background: var(--color-primary);
  box-shadow: var(--shadow-primary);
}

/* ===== CHANNEL COMPACT BUTTONS ===== */
.btn-channel-compact {
  padding: 6px 10px;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  color: var(--color-text-light);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-xs);
}

.btn-channel-compact:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-primary);
}

.btn-channel-compact.saved {
  background: var(--color-accent-green);
}

.btn-channel-compact.saved:hover {
  background: var(--color-accent-green-light);
}

.btn-channel-compact:has(i[data-lucide="chevron-down"]) {
  min-width: 34px;
  padding: 6px 8px;
}

/* ===== SAVED ACTION BUTTONS ===== */
.btn-saved-action {
  flex: 1;
  padding: 10px 14px;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-lg);
  color: var(--color-text-light);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  font-size: var(--font-size-base);
}

.btn-saved-action:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-primary);
}

.btn-saved-action.danger {
  background: var(--color-accent-red);
}

.btn-saved-action.danger:hover {
  background: var(--color-accent-red-light);
  box-shadow: var(--shadow-danger);
}

/* ===== MISC BUTTONS ===== */

/* Twitter Link Button */
.twitter-link-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.twitter-link-btn:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-primary);
  color: var(--color-text-light) !important;
}

/* Save Option Button */
.save-option {
  display: block;
  width: 100%;
  padding: 12px 20px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  color: var(--color-text-primary);
  cursor: pointer;
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-md);
  text-align: center;
}

.save-option:hover {
  background: var(--color-primary-subtle);
}

.save-option.saved {
  background: var(--color-accent-green-subtle);
  border-color: var(--color-accent-green);
  color: var(--color-accent-green);
}

.save-option.cancel {
  background: var(--color-accent-red-subtle);
  border-color: var(--color-accent-red);
  color: var(--color-accent-red);
  margin-bottom: 0;
}

.save-option.cancel:hover {
  background: rgba(231, 76, 60, 0.2);
}

/* Watch Button */
.watch-btn {
  background: var(--color-accent-red);
  border: none;
  color: var(--color-text-light);
  padding: 10px 20px;
  border-radius: var(--radius-lg);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-md);
}

.watch-btn:hover {
  background: var(--color-accent-red-light);
  box-shadow: var(--shadow-danger);
}

/* Saved Mode Button */
.saved-mode-btn {
  padding: 8px 16px;
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-md);
  border-radius: var(--radius-md);
  cursor: pointer;
}

.saved-mode-btn:hover {
  color: var(--color-text-light);
  background: var(--bg-hover);
}

.saved-mode-btn.active {
  color: var(--color-text-light);
  background: var(--color-primary);
}

/* Collapse Button */
.collapse-btn {
  background: var(--bg-tertiary);
  border: 1px solid transparent;
  color: var(--color-text-secondary);
  padding: 6px 10px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
}
.collapse-btn:hover {
  background: var(--color-primary-subtle);
  color: var(--color-text-primary);
  border-color: transparent;
}

/* Close Button */
.close-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--bg-tertiary);
  border: none;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-circle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  z-index: 10;
}

.close-btn:hover {
  background: var(--bg-hover);
  color: white;
}

/* Button Icons */
.btn-icon {
  font-size: 1.1rem;
}

.btn-text {
  font-size: var(--font-size-md);
}

/* ===== RESPONSIVE BUTTONS ===== */
@media (max-width: 1024px) {

  .btn,
  button.btn,
  #reverseSortBtn,
  #loadMoreBtn {
    padding: 9px 16px;
    font-size: var(--font-size-base);
  }

  .btn-enhanced {
    min-width: 110px;
    padding: 7px 12px;
    font-size: var(--font-size-sm);
  }
}

@media (max-width: 768px) {

  .btn,
  button.btn,
  #reverseSortBtn,
  #loadMoreBtn {
    padding: 9px 14px;
    font-size: var(--font-size-sm);
    height: 36px;
  }

  .btn-enhanced {
    min-width: 100px;
    padding: 7px 10px;
    font-size: var(--font-size-sm);
    height: 32px;
  }

  .btn-channel-compact {
    padding: 5px 8px;
    font-size: 0.7rem;
  }

  .tab-btn {
    padding: 10px 16px;
    font-size: var(--font-size-base);
  }

  .sub-tab-btn {
    padding: 9px 14px;
    font-size: var(--font-size-sm);
  }
}

@media (max-width: 480px) {

  .btn,
  button.btn,
  #reverseSortBtn,
  #loadMoreBtn,
  .watch-btn,
  .tab-btn,
  .btn-saved-action,
  .btn-primary {
    min-height: var(--touch-target);
  }
  .btn,
  button.btn,
  #reverseSortBtn,
  #loadMoreBtn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    height: auto;
  }
  .watch-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-sm);
  }
  .btn-enhanced {
    min-width: 90px;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-xs);
    min-height: 40px;
    height: auto;
  }
  .btn-channel-compact {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.65rem;
    min-height: 32px;
  }
  .tab-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-sm);
  }
  .sub-tab-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-xs);
    min-height: 40px;
  }
  .btn-saved-action {
    padding: var(--spacing-md);
    font-size: var(--font-size-sm);
  }
}

@media (max-width: 360px) {
  .btn,
  button.btn,
  #reverseSortBtn,
  #loadMoreBtn,
  .watch-btn,
  .tab-btn,
  .btn-saved-action,
  .btn-primary {
    min-height: var(--touch-target);
  }
  .btn,
  button.btn,
  #reverseSortBtn,
  #loadMoreBtn {
    padding: 7px 10px;
    font-size: var(--font-size-xs);
    height: auto;
  }

  .btn-enhanced {
    min-width: 80px;
    padding: 5px 6px;
    font-size: 0.7rem;
    height: 28px;
  }

  .tab-btn {
    padding: 7px 8px;
    font-size: var(--font-size-xs);
  }

  .sub-tab-btn {
    padding: 6px 8px;
    font-size: 0.7rem;
  }
}