/* Kolosal Finance — Sidebar Navigation */


/* ============================================
   SIDEBAR SHELL
   ============================================ */

.app-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: 240px;
  background: var(--color-neutral-white);
  border-right: 1px solid var(--color-grey-800);
  display: flex;
  flex-direction: column;
  z-index: var(--z-dropdown);
  overflow: hidden;
  transition: width 0.25s ease;
  box-shadow: none;
}

.app-sidebar.collapsed {
  width: 60px;
}

/* ============================================
   BRAND SECTION
   ============================================ */

.sidebar-brand {
  padding: 20px 16px 16px;
  border-bottom: 1px solid var(--color-grey-800);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 72px;
}

.sidebar-brand-icon {
  width: 32px;
  height: 32px;
  background: var(--color-text-900);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-neutral-white);
  font-size: 14px;
  font-weight: 700;
  font-family: 'Inter', system-ui, sans-serif;
}

.sidebar-brand-text {
  overflow: hidden;
}

.sidebar-brand-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text-900);
  white-space: nowrap;
  transition: opacity 0.15s ease, max-width 0.25s ease;
  max-width: 180px;
}

.sidebar-brand-subtitle {
  font-size: 11px;
  color: var(--color-text-500);
  white-space: nowrap;
  transition: opacity 0.15s ease, max-width 0.25s ease;
  max-width: 180px;
  margin-top: 1px;
}

.app-sidebar.collapsed .sidebar-brand-name,
.app-sidebar.collapsed .sidebar-brand-subtitle {
  opacity: 0;
  max-width: 0;
  pointer-events: none;
}

/* ============================================
   NAV SECTION
   ============================================ */

.sidebar-nav {
  flex: 1;
  padding: 12px 8px;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-section-label {
  font-size: 9px;
  font-weight: 600;
  color: var(--color-text-500);
  letter-spacing: 0.8px;
  padding: 0 8px;
  margin-bottom: 6px;
  white-space: nowrap;
  transition: opacity 0.15s ease;
}

.app-sidebar.collapsed .sidebar-section-label {
  opacity: 0;
  pointer-events: none;
}

.sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  color: var(--color-text-700);
  text-decoration: none;
  font-size: 13px;
  font-weight: 400;
  white-space: nowrap;
  cursor: pointer;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  transition: background 0.15s ease, color 0.15s ease;
  position: relative;
  margin-bottom: 2px;
}

.sidebar-nav-item:hover {
  background: var(--color-grey-800);
  color: var(--color-text-900);
}

.sidebar-nav-item.active {
  background: var(--color-text-900);
  color: var(--color-grey-600);
  font-weight: 600;
}

.sidebar-nav-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  display: block;
}

.sidebar-nav-item.active .sidebar-nav-icon {
  filter: brightness(0) invert(1);
}

.sidebar-nav-label {
  transition: opacity 0.15s ease, max-width 0.25s ease;
  max-width: 180px;
  overflow: hidden;
}

.app-sidebar.collapsed .sidebar-nav-label {
  opacity: 0;
  max-width: 0;
  pointer-events: none;
}

/* ============================================
   TOOLTIPS (collapsed state only)
   ============================================ */

.app-sidebar.collapsed .sidebar-nav-item::after {
  content: attr(data-tooltip);
  position: absolute;
  left: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-text-900);
  color: var(--color-neutral-white);
  font-size: 12px;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
  z-index: var(--z-overlay);
}

.app-sidebar.collapsed .sidebar-nav-item:hover::after {
  opacity: 1;
}

/* ============================================
   BOTTOM UTILITY SECTION
   ============================================ */

.sidebar-footer {
  padding: 8px 8px 16px;
  border-top: 1px solid var(--color-grey-800);
  flex-shrink: 0;
}

/* ============================================
   COLLAPSE TOGGLE BUTTON
   ============================================ */

.sidebar-collapse-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  color: var(--color-text-500);
  font-size: 12px;
  background: none;
  border: 1px dashed var(--color-grey-800);
  width: 100%;
  cursor: pointer;
  margin-top: 8px;
  transition: background 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}

.sidebar-collapse-btn:hover {
  background: var(--color-grey-800);
  color: var(--color-text-700);
}

.sidebar-collapse-icon {
  flex-shrink: 0;
  font-size: 14px;
  line-height: 1;
  transition: transform 0.25s ease;
}

.app-sidebar.collapsed .sidebar-collapse-icon {
  transform: rotate(180deg);
}

.sidebar-collapse-label {
  transition: opacity 0.15s ease, max-width 0.25s ease;
  max-width: 180px;
}

.app-sidebar.collapsed .sidebar-collapse-label {
  opacity: 0;
  max-width: 0;
  pointer-events: none;
}


/* ============================================
   CONTENT LAYOUT WRAPPER
   ============================================ */

.sidebar-layout {
  margin-left: 240px;
  transition: margin-left 0.25s ease;
  min-height: 100vh;
}

.sidebar-layout.sidebar-collapsed {
  margin-left: 60px;
}

/* ============================================
   MOBILE: hide sidebar, reset layout margin
   Sidebar is desktop-only. Mobile uses .mobile-bottom-nav instead.
   ============================================ */

@media (max-width: 768px) {
  .app-sidebar {
    display: none;
  }

  .sidebar-layout,
  .sidebar-layout.sidebar-collapsed {
    margin-left: 0;
  }
}