Stirling-PDF/frontend/src/core/components/tools/ToolPanel.css

/* ---- Viewer mode mini-toolbar (top of ToolPanel) ---- */
.tool-panel-viewer-bar {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 4px 8px;
  border-bottom: 1px solid var(--border-subtle);
  background-color: var(--bg-toolbar);
  flex-shrink: 0;
}

/* CSS Custom Properties for Fullscreen Mode */
.tool-panel__fullscreen-surface-inner {
  --fullscreen-bg-surface-1: color-mix(
    in srgb,
    var(--bg-toolbar) 96%,
    transparent
  );
  --fullscreen-bg-surface-2: color-mix(
    in srgb,
    var(--bg-background) 90%,
    transparent
  );
  --fullscreen-bg-header: var(--bg-toolbar);
  --fullscreen-bg-controls-1: var(--bg-toolbar);
  --fullscreen-bg-controls-2: color-mix(
    in srgb,
    var(--bg-toolbar) 95%,
    var(--bg-background)
  );
  --fullscreen-bg-body-1: color-mix(
    in srgb,
    var(--bg-background) 86%,
    transparent
  );
  --fullscreen-bg-body-2: color-mix(
    in srgb,
    var(--bg-toolbar) 78%,
    transparent
  );
  --fullscreen-bg-group: color-mix(in srgb, var(--bg-toolbar) 82%, transparent);
  --fullscreen-bg-item: color-mix(in srgb, var(--bg-toolbar) 88%, transparent);
  --fullscreen-bg-list-item: color-mix(
    in srgb,
    var(--bg-toolbar) 86%,
    transparent
  );
  --fullscreen-bg-icon-detailed: color-mix(
    in srgb,
    var(--bg-muted) 75%,
    transparent
  );
  --fullscreen-bg-icon-compact: color-mix(
    in srgb,
    var(--bg-muted) 70%,
    transparent
  );
  --fullscreen-border-subtle-75: color-mix(
    in srgb,
    var(--border-subtle) 75%,
    transparent
  );
  --fullscreen-border-subtle-70: color-mix(
    in srgb,
    var(--border-subtle) 70%,
    transparent
  );
  --fullscreen-border-subtle-65: color-mix(
    in srgb,
    var(--border-subtle) 65%,
    transparent
  );
  --fullscreen-border-favorites: color-mix(
    in srgb,
    var(--special-color-favorites) 25%,
    var(--border-subtle)
  );
  --fullscreen-border-recommended: color-mix(
    in srgb,
    var(--special-color-recommended) 25%,
    var(--border-subtle)
  );
  --fullscreen-shadow-primary: color-mix(
    in srgb,
    var(--shadow-color, rgba(15, 23, 42, 0.55)) 25%,
    transparent
  );
  --fullscreen-shadow-secondary: color-mix(
    in srgb,
    var(--shadow-color, rgba(15, 23, 42, 0.35)) 30%,
    transparent
  );
  --fullscreen-shadow-group: color-mix(
    in srgb,
    var(--shadow-color, rgba(15, 23, 42, 0.45)) 18%,
    transparent
  );
  --fullscreen-accent-hover: color-mix(
    in srgb,
    var(--text-primary) 20%,
    var(--border-subtle)
  );
  --fullscreen-accent-selected: color-mix(
    in srgb,
    var(--text-primary) 30%,
    var(--border-subtle)
  );
  --fullscreen-accent-ring: color-mix(
    in srgb,
    var(--text-primary) 15%,
    transparent
  );
  --fullscreen-accent-list-bg: color-mix(
    in srgb,
    var(--text-primary) 8%,
    var(--bg-toolbar)
  );
  --fullscreen-accent-list-border: color-mix(
    in srgb,
    var(--text-primary) 20%,
    var(--border-subtle)
  );
  --fullscreen-text-icon: var(--text-primary);
  --fullscreen-text-icon-compact: var(--text-primary);
}

.tool-panel {
  position: relative;
  transition:
    width 0.3s ease,
    max-width 0.3s ease;
}

.tool-panel__collapsed-strip {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding-top: 10px;
  gap: 8px;
  height: 100%;
  width: 100%;
}

.tool-panel__expand-btn {
  flex-shrink: 0;
  color: var(--text-secondary) !important;
  border-color: var(--border-subtle) !important;
}

.tool-panel__expand-btn svg {
  color: var(--text-secondary) !important;
}

.tool-panel__expand-btn:hover {
  color: var(--text-primary) !important;
  border-color: var(--border) !important;
}

.tool-panel__collapsed-search-btn {
  flex-shrink: 0;
  color: var(--text-secondary) !important;
}

.tool-panel__collapsed-search-btn svg {
  color: var(--text-secondary) !important;
}

.tool-panel__collapsed-search-btn:hover {
  color: var(--text-primary) !important;
}

.tool-panel__back-btn {
  flex-shrink: 0;
}

.tool-panel--fullscreen-active {
  overflow: visible !important;
}

.tool-panel__search-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  height: 48px;
  padding: 0 0.5rem;
  box-sizing: border-box;
}

.tool-panel__search-row .search-input-container {
  flex: 1 1 auto;
}

.tool-panel__mode-toggle {
  transition: transform 0.2s ease;
}

.tool-panel__mode-toggle:hover {
  transform: scale(1.04);
}

.tool-panel--fullscreen {
  background: var(--bg-toolbar);
}

.tool-panel__placeholder {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 1.5rem;
  text-align: center;
}

.tool-panel__fullscreen-surface {
  position: fixed;
  display: flex;
  pointer-events: none;
  z-index: var(--z-fullscreen-surface);
  top: 0;
  left: 0;
  width: 0;
  height: 0;
}

.tool-panel__fullscreen-surface-inner {
  pointer-events: auto;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  border-radius: 0;
  background: linear-gradient(
      140deg,
      var(--fullscreen-bg-surface-1),
      var(--fullscreen-bg-surface-2)
    )
    padding-box;
  border: 1px solid var(--fullscreen-border-subtle-75);
  box-shadow: none;
  backdrop-filter: blur(18px);
  overflow: hidden;
  /* Shared animation durations for JS + CSS (sourced from theme.css) */
  --fullscreen-anim-in-duration: var(--fullscreen-anim-duration-in);
  --fullscreen-anim-out-duration: var(--fullscreen-anim-duration-out);
  animation: tool-panel-fullscreen-slide-in var(--fullscreen-anim-in-duration)
    ease forwards;
}

.tool-panel__fullscreen-surface-inner--exiting {
  animation: tool-panel-fullscreen-slide-out var(--fullscreen-anim-out-duration)
    ease forwards;
}

:root[dir="rtl"] .tool-panel__fullscreen-surface-inner {
  animation-name: tool-panel-fullscreen-slide-in-rtl;
}

:root[dir="rtl"]
  .tool-panel__fullscreen-surface-inner.tool-panel__fullscreen-surface-inner--exiting {
  animation-name: tool-panel-fullscreen-slide-out-rtl;
}

.tool-panel__fullscreen-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.75rem;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-toolbar);
}

.tool-panel__fullscreen-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.tool-panel__fullscreen-brand-icon {
  height: 1.75rem;
  width: auto;
}

.tool-panel__fullscreen-brand-text {
  height: 1.25rem;
  width: auto;
}

.tool-panel__fullscreen-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.75rem;
  border-bottom: 1px solid var(--tool-panel-search-border-bottom);
  background: var(--tool-panel-search-bg);
}

.tool-panel__fullscreen-controls .search-input-container {
  flex: 1 1 auto;
}

.tool-panel__fullscreen-body {
  flex: 1;
  min-height: 0;
  background: transparent;
}

.tool-panel__fullscreen-scroll {
  height: 100%;
}

/* fullscreen group layout */
.tool-panel__fullscreen-groups {
  padding: 1.5rem 1.75rem;
  column-width: 18rem;
  column-gap: 1.5rem;
}

.tool-panel__fullscreen-groups--compact {
  column-width: 17rem;
}

.tool-panel__fullscreen-groups--detailed {
  column-width: auto;
}

.tool-panel__fullscreen-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  width: 100%;
  margin: 0 0 1.5rem;
  padding: 0.65rem 0.75rem 1rem;
  border-radius: 1rem;
  background: var(--fullscreen-bg-group);
  border: 1px solid var(--fullscreen-border-subtle-65);
  box-shadow: 0 14px 32px var(--fullscreen-shadow-group);
  break-inside: avoid;
}

.tool-panel__fullscreen-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.1rem 0.15rem 0.35rem;
}

.tool-panel__fullscreen-section-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tool-panel__fullscreen-section-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.tool-panel__fullscreen-grid {
  display: grid;
  gap: 0.75rem;
}

.tool-panel__fullscreen-grid--detailed {
  grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr));
}

.tool-panel__fullscreen-item {
  all: unset;
  display: flex;
  flex-direction: row;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.85rem 0.95rem;
  border: 1px solid var(--fullscreen-border-subtle-70);
  border-radius: 0.95rem;
  background: var(--fullscreen-bg-item);
  cursor: pointer;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
  width: 100%;
  box-sizing: border-box;
  /* Allow flex children to shrink without forcing horizontal overflow */
  min-width: 0;
}

.tool-panel__fullscreen-item:focus-visible {
  outline: 2px solid var(--fullscreen-accent-selected);
  outline-offset: 3px;
}

.tool-panel__fullscreen-item[aria-disabled="true"],
.tool-panel__fullscreen-item:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.tool-panel__fullscreen-item:hover:not([aria-disabled="true"]):not(:disabled) {
  transform: translateY(-2px);
  border-color: var(--fullscreen-accent-hover);
  box-shadow: var(--shadow-xl, 0 18px 34px rgba(15, 23, 42, 0.14));
}

.tool-panel__fullscreen-item--selected {
  border-color: var(--fullscreen-accent-selected);
  box-shadow: 0 0 0 2px var(--fullscreen-accent-ring);
}

.tool-panel__fullscreen-item--detailed {
  min-height: 7.5rem;
}

.tool-panel__fullscreen-item--with-star {
  position: relative;
}

.tool-panel__fullscreen-star {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  opacity: 0;
  transition: opacity 0.2s ease;
  z-index: 2;
}

.tool-panel__fullscreen-item:hover .tool-panel__fullscreen-star {
  opacity: 1;
}

.tool-panel__fullscreen-list-item--with-star {
  position: relative;
}

.tool-panel__fullscreen-star-compact {
  position: absolute;
  top: 0.35rem;
  right: 0.35rem;
  opacity: 0;
  transition: opacity 0.2s ease;
  z-index: 2;
}

.tool-panel__fullscreen-list-item:hover .tool-panel__fullscreen-star-compact {
  opacity: 1;
}

.tool-panel__fullscreen-group--special {
  border-width: 1px;
}

.tool-panel__fullscreen-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.75rem;
  background: var(--fullscreen-bg-icon-detailed);
  color: var(--fullscreen-text-icon);
  flex-shrink: 0;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
  position: relative;
  overflow: hidden;
}

.tool-panel__fullscreen-icon::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--text-primary) 12%, transparent),
    color-mix(in srgb, var(--text-primary) 4%, transparent)
  );
  opacity: 0;
  transition: opacity 0.2s ease;
  border-radius: 0.75rem;
}

.tool-panel__fullscreen-item:hover:not([aria-disabled="true"])
  .tool-panel__fullscreen-icon {
  transform: scale(1.08);
  box-shadow: 0 4px 12px
    color-mix(in srgb, var(--text-primary) 15%, transparent);
}

.tool-panel__fullscreen-item:hover:not([aria-disabled="true"])
  .tool-panel__fullscreen-icon::before {
  opacity: 1;
}

.tool-panel__fullscreen-icon svg {
  font-size: 1.65rem;
  position: relative;
  z-index: var(--z-fullscreen-icon-svg);
}

.tool-panel__fullscreen-body {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  text-align: left;
  /* Prevent long content (names, descriptions, shortcuts) from overflowing */
  flex: 1 1 auto;
  min-width: 0;
}

.tool-panel__fullscreen-name {
  color: var(--text-primary);
  font-size: 13px !important;
  font-weight: 500 !important;
}

.tool-panel__fullscreen-description {
  line-height: 1.45;
}

/* Ensure long words or unbroken strings wrap instead of overflowing */
.tool-panel__fullscreen-name,
.tool-panel__fullscreen-description,
.tool-panel__fullscreen-match {
  overflow-wrap: anywhere;
  word-break: break-word;
  hyphens: auto;
}

.tool-panel__fullscreen-match {
  font-style: italic;
}

.tool-panel__fullscreen-shortcut {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.2rem;
  /* Allow hotkey chips to wrap on small widths to avoid overflow */
  flex-wrap: wrap;
  row-gap: 0.25rem;
}

.tool-panel__fullscreen-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.tool-panel__fullscreen-list-item {
  all: unset;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.5rem 0.55rem 0.65rem;
  border-radius: 0.65rem;
  cursor: pointer;
  transition:
    background 0.2s ease,
    transform 0.2s ease;
  background: var(--fullscreen-bg-list-item);
  border: 1px solid transparent;
  width: 100%;
  box-sizing: border-box;
  position: relative;
}

.tool-panel__fullscreen-list-item[aria-disabled="true"],
.tool-panel__fullscreen-list-item:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.tool-panel__fullscreen-list-item:hover:not([aria-disabled="true"]):not(
    :disabled
  ),
.tool-panel__fullscreen-list-item--selected {
  background: var(--fullscreen-accent-list-bg);
  border-color: var(--fullscreen-accent-list-border);
}

.tool-panel__fullscreen-list-item--selected {
  transform: translateX(2px);
}

.tool-panel__fullscreen-list-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 0.6rem;
  background: var(--fullscreen-bg-icon-compact);
  color: var(--fullscreen-text-icon-compact);
  flex-shrink: 0;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
  position: relative;
  overflow: hidden;
}

.tool-panel__fullscreen-list-icon::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--text-primary) 10%, transparent),
    color-mix(in srgb, var(--text-primary) 3%, transparent)
  );
  opacity: 0;
  transition: opacity 0.2s ease;
  border-radius: 0.6rem;
}

.tool-panel__fullscreen-list-item:hover:not([aria-disabled="true"])
  .tool-panel__fullscreen-list-icon {
  transform: scale(1.06);
  box-shadow: 0 2px 8px color-mix(in srgb, var(--text-primary) 12%, transparent);
}

.tool-panel__fullscreen-list-item:hover:not([aria-disabled="true"])
  .tool-panel__fullscreen-list-icon::before {
  opacity: 1;
}

.tool-panel__fullscreen-list-icon svg {
  position: relative;
  z-index: 1;
}

.tool-panel__fullscreen-list-body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.2rem;
  text-align: left;
}

.tool-panel__fullscreen-empty {
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

@keyframes tool-panel-fullscreen-slide-in {
  from {
    transform: translateX(6%) scaleX(0.85);
    opacity: 0;
  }
  to {
    transform: translateX(0) scaleX(1);
    opacity: 1;
  }
}

@keyframes tool-panel-fullscreen-slide-out {
  from {
    transform: translateX(0) scaleX(1);
    opacity: 1;
  }
  to {
    transform: translateX(6%) scaleX(0.85);
    opacity: 0;
  }
}

@keyframes tool-panel-fullscreen-slide-in-rtl {
  from {
    transform: translateX(-6%) scaleX(0.85);
    opacity: 0;
  }
  to {
    transform: translateX(0) scaleX(1);
    opacity: 1;
  }
}

@keyframes tool-panel-fullscreen-slide-out-rtl {
  from {
    transform: translateX(0) scaleX(1);
    opacity: 1;
  }
  to {
    transform: translateX(-6%) scaleX(0.85);
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tool-panel__fullscreen-surface-inner {
    animation: none !important;
  }

  .tool-panel__mode-toggle {
    transition: none;
  }

  .tool-panel__fullscreen-item,
  .tool-panel__fullscreen-list-item {
    transition: none;
  }
}

@media (max-width: 1440px) {
  .tool-panel__fullscreen-content {
    padding-inline: 1.5rem;
  }

  .tool-panel__fullscreen-grid--compact {
    column-width: 15rem;
  }
}

@media (max-width: 1280px) {
  .tool-panel__fullscreen-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .tool-panel__fullscreen-controls .mantine-Switch-root {
    justify-content: flex-end;
  }

  .tool-panel__fullscreen-grid--compact {
    column-width: 14rem;
  }
}