/* css/sidebar.css - BankOps (Taurus Inspired) Sidebar Theme */

.sidebar {
  grid-area: sidebar;
  width: var(--sidebar-width);
  background: var(--bg-primary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: calc(100vh - var(--navbar-height));
  position: sticky;
  top: var(--navbar-height);
  transition: all var(--transition-base) cubic-bezier(0.4, 0, 0.2, 1);
  z-index: var(--z-sticky);
  overflow: hidden;
}

/* --- Navigation --- */
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 0.25rem 0.5rem;
  display: flex;
  flex-direction: column;
}

/* Hide scrollbar for sidebar nav */
.sidebar-nav::-webkit-scrollbar {
  width: 3px;
}
.sidebar-nav::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 10px;
}

.sidebar-section {
  display: flex;
  flex-direction: column;
}

.sidebar-section-title {
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.25rem;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.6;
}

.sidebar-menu {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-item {
  position: relative;
}

/* --- Links & Triggers --- */
.sidebar-link,
.sidebar-submenu-trigger {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.75rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: 10px;
  transition: all var(--transition-fast);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

.sidebar-link:hover,
.sidebar-submenu-trigger:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.sidebar-link.active,
.sidebar-submenu-trigger.active {
  background: var(--taurus-primary);
  color: #ffffff;
  box-shadow: 0 4px 10px rgba(91, 111, 249, 0.15);
}

.sidebar-link-icon-wrapper {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sidebar-link-icon {
  width: 100%;
  height: 100%;
}

.sidebar-link-text {
  flex: 1;
}

.submenu-arrow {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-base);
  opacity: 0.6;
}

.sidebar-item.open > .sidebar-submenu-trigger .submenu-arrow {
  transform: rotate(180deg);
}

.sidebar-item.open > .sidebar-submenu-trigger {
  color: var(--text-primary);
}

/* --- Submenu --- */
.sidebar-submenu {
  list-style: none;
  padding: 0;
  margin: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base) ease-in-out;
  display: flex;
  flex-direction: column;
}

.sidebar-item.open > .sidebar-submenu {
  max-height: 800px;
  margin-top: 2px;
  margin-bottom: 0.5rem;
}

.sidebar-submenu-item {
  position: relative;
  padding-left: 1.5rem;
}

.sidebar-submenu-link {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 0.75rem;
  color: var(--text-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: 8px;
  transition: all var(--transition-fast);
  position: relative;
}

.sidebar-submenu-link:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.sidebar-submenu-link.active {
  color: var(--taurus-primary);
  font-weight: 600;
  background: var(--taurus-primary-light);
}

/* --- Hierarchical Tree Lines --- */
.submenu-line {
  position: absolute;
  left: 0.8125rem; /* Matches the center line of the parent icon */
  top: 0;
  bottom: 0;
  width: 1.5px;
  background: var(--border-color);
  opacity: 0.6;
  z-index: 1;
}

/* Branch connector */
.sidebar-submenu-link::before {
  content: "";
  position: absolute;
  left: -0.6875rem; /* Reaches exactly to the vertical line */
  top: 50%;
  width: 0.6875rem;
  height: 1.5px;
  background: var(--border-color);
  opacity: 0.6;
  border-radius: 0 0 0 4px;
}

/* Submenu Popover Styles (Used by JS) */
.sidebar-popover {
  position: fixed;
  background: var(--bg-overlay);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--shadow-xl);
  z-index: var(--z-popover);
  padding: 0.5rem;
  width: 220px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  pointer-events: none;
}

[data-theme="dark"] .sidebar-popover {
  background: var(--bg-body);
  border-color: var(--border-color);
}

.sidebar-popover.visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(10px);
}

.sidebar-popover-header {
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
  opacity: 0.9;
}

[data-theme="dark"] .sidebar-popover-header {
  border-color: rgba(255, 255, 255, 0.05);
}

.sidebar-popover-body {
  display: flex;
  flex-direction: column;
}

.sidebar-popover .sidebar-submenu-item {
  padding-left: 1.5rem;
  position: relative;
}

.sidebar-popover .sidebar-submenu-link {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.625rem 0.875rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: 8px;
  transition: all var(--transition-fast);
}

.sidebar-popover .sidebar-submenu-link:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.sidebar-popover .sidebar-submenu-link.active {
  color: var(--taurus-primary);
  font-weight: 600;
  background: var(--taurus-primary-light);
}

.sidebar-popover .submenu-line {
  left: 0.75rem;
}

.sidebar-popover .sidebar-submenu-link::before {
  left: -0.75rem;
}

/* Adjustments for line flow */
.sidebar-submenu-item:first-child .submenu-line {
  top: -1rem; /* Reach up to the parent */
}

.sidebar-submenu-item:last-child .submenu-line {
  bottom: 50%; /* Stop at the last branch */
}

/* --- Footer & Cards --- */
.sidebar-footer {
  padding: 0.75rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Logout */
.logout-form {
  width: 100%;
}

.logout-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.75rem;
  color: var(--danger-color);
  font-size: 0.875rem;
  font-weight: 500;
  background: transparent;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: inherit;
}

.logout-btn:hover {
  background: rgba(239, 68, 68, 0.05);
}

.logout-icon {
  width: 18px;
  height: 18px;
}

/* --- Collapsed State --- */
body.sidebar-collapsed .sidebar {
  width: var(--sidebar-width-collapsed);
}

body.sidebar-collapsed .sidebar-brand-text,
body.sidebar-collapsed .sidebar-section-title,
body.sidebar-collapsed .sidebar-link-text,
body.sidebar-collapsed .submenu-arrow,
body.sidebar-collapsed .sidebar-submenu,
body.sidebar-collapsed .help-card-content,
body.sidebar-collapsed .logout-text {
  display: none !important;
}

body.sidebar-collapsed .sidebar-brand-container {
  padding: 1rem;
  justify-content: center;
}

body.sidebar-collapsed .sidebar-nav {
  padding: 0.25rem;
}

body.sidebar-collapsed .sidebar-link,
body.sidebar-collapsed .sidebar-submenu-trigger {
  padding: 0.75rem;
  justify-content: center;
}

body.sidebar-collapsed .sidebar-help-card {
  padding: 0.625rem;
  justify-content: center;
}

body.sidebar-collapsed .logout-btn {
  justify-content: center;
}

/* --- Tooltips Interaction --- */
.sidebar-link[data-tooltip],
.sidebar-submenu-trigger[data-tooltip],
.logout-btn[data-tooltip] {
  position: relative;
}

/* --- Responsive Layout --- */
@media (max-width: 1024px) {
  /* Future auto-collapse logic if needed */
}

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: -100%;
    z-index: var(--z-fixed);
    height: 100vh;
    box-shadow: var(--shadow-xl);
  }

  body.sidebar-open .sidebar {
    left: 0;
  }

  body.sidebar-open::after {
    content: "";
    position: fixed;
    inset: 0;
    background: var(--bg-overlay);
    z-index: calc(var(--z-fixed) - 1);
  }
}