/* BetterCalc Toolbar Theme 
   Glassmorphism & High-End Dark Theme
*/

:root {
  --toolbar-height: 52px;
  --toolbar-bg-glass: rgba(255, 255, 255, 0.65);
  --toolbar-bg-glass-dark: rgba(30, 41, 59, 0.75); /* Slate 800 with opacity */
  --toolbar-border-light: rgba(255, 255, 255, 0.4);
  --toolbar-border-dark: rgba(255, 255, 255, 0.08);
  --toolbar-blur: 16px;
  --toolbar-radius: 12px;
  
  --btn-hover-light: rgba(0, 0, 0, 0.05);
  --btn-hover-dark: rgba(255, 255, 255, 0.1);
  --btn-active-light: rgba(0, 0, 0, 0.1);
  --btn-active-dark: rgba(255, 255, 255, 0.15);
  
  --accent-color: #0078D4; /* Electric Blue */
  --accent-glow: 0 0 10px rgba(0, 120, 212, 0.4);
}

#toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 12px 24px 0; /* Positioned below app bar */
  padding: 6px 12px;
  height: var(--toolbar-height);
  
  background-color: var(--toolbar-bg-glass);
  backdrop-filter: blur(var(--toolbar-blur));
  -webkit-backdrop-filter: blur(var(--toolbar-blur));
  
  border: 1px solid var(--toolbar-border-dark); /* Default to subtle border */
  border-radius: var(--toolbar-radius);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 100;
}

[data-theme="dark"] #toolbar {
  background-color: var(--toolbar-bg-glass-dark);
  border-color: var(--toolbar-border-dark);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.15);
}

/* --- Left Section (Menus) --- */
.toolbar-left {
  display: flex;
  align-items: center;
  gap: 4px;
}

.toolbar-category-container {
  position: relative;
}

.toolbar-button {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  
  font-family: var(--font-family-base);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  
  background: transparent;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

[data-theme="dark"] .toolbar-button {
  color: #e2e8f0; /* Slate 200 */
}

.toolbar-button:hover {
  background-color: var(--btn-hover-light);
  color: var(--color-text-primary);
}

[data-theme="dark"] .toolbar-button:hover {
  background-color: var(--btn-hover-dark);
  color: #fff;
  text-shadow: 0 0 8px rgba(255,255,255,0.3);
}

.toolbar-button:active, 
.toolbar-button[aria-expanded="true"] {
  background-color: var(--btn-active-light);
  color: var(--accent-color);
}

[data-theme="dark"] .toolbar-button:active, 
[data-theme="dark"] .toolbar-button[aria-expanded="true"] {
  background-color: rgba(99, 102, 241, 0.2); /* Indigo tint */
  color: #818cf8; /* Indigo 400 */
}

/* Arrow indicator */
.toolbar-button::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  opacity: 0.6;
  transition: transform 0.2s ease;
}

.toolbar-button[aria-expanded="true"]::after {
  transform: rotate(180deg);
}


/* --- Center Section (Actions) --- */
.toolbar-center {
  display: flex;
  align-items: center;
  gap: 8px;
  
  /* Separator */
  padding: 0 16px;
  border-left: 1px solid var(--color-stroke-subtle);
  border-right: 1px solid var(--color-stroke-subtle);
}

[data-theme="dark"] .toolbar-center {
  border-color: rgba(255,255,255,0.1);
}

.toolbar-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  
  color: var(--color-text-secondary);
  background: transparent;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

[data-theme="dark"] .toolbar-icon-btn {
  color: #94a3b8; /* Slate 400 */
}

.toolbar-icon-btn:hover {
  background-color: var(--btn-hover-light);
  color: var(--accent-color);
  transform: translateY(-1px);
}

[data-theme="dark"] .toolbar-icon-btn:hover {
  background-color: var(--btn-hover-dark);
  color: #38bdf8; /* Sky 400 */
  box-shadow: 0 0 5px rgba(56, 189, 248, 0.3);
}

.toolbar-icon-btn svg {
  width: 18px;
  height: 18px;
  stroke-width: 2;
}


/* --- Right Section (Help/Settings) --- */
.toolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.toolbar-circle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  
  border-radius: 50%;
  background: transparent;
  border: 1px solid var(--color-stroke-subtle);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

[data-theme="dark"] .toolbar-circle-btn {
  border-color: rgba(255,255,255,0.1);
  color: #94a3b8;
}

.toolbar-circle-btn:hover {
  background-color: var(--btn-hover-light);
  border-color: var(--accent-color);
  color: var(--accent-color);
}

[data-theme="dark"] .toolbar-circle-btn:hover {
  background-color: rgba(56, 189, 248, 0.1);
  border-color: #38bdf8;
  color: #38bdf8;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.2);
}

/* Animations */
@keyframes fadeInSlide {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}

.dropdown-menu {
  animation: fadeInSlide 0.2s ease forwards;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  #toolbar {
    margin: 0;
    border-radius: 0;
    border-left: none;
    border-right: none;
    justify-content: flex-start;
    overflow-x: auto;
  }
  
  .toolbar-center, .toolbar-right {
    display: none;
  }
}