/* ============================================
   LAYOUT: Sidebar โ€” Obsidian Aurora
   ============================================
   Tonal depth, no hard borders, cyan active,
   glassmorphism, collapsible.
   ============================================ */

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background-color: rgba(10, 13, 20, 0.6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  z-index: var(--z-sidebar);
  transition: var(--transition);
  box-shadow: 4px 0 24px rgba(0, 0, 0, 0.35), 1px 0 0 rgba(255, 255, 255, 0.06);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

/* Mobile hamburger — sits OUTSIDE the sidebar so it stays reachable when the sidebar is
   off-canvas. Hidden on desktop; shown via _responsive.css under 1024px.
   Uses the same glass tokens as the sidebar so it adapts to dark/light theme automatically.
   z-index is below --z-sidebar (1000) so the open sidebar covers it cleanly. */
.mobile-menu-btn {
  display: none;
  position: fixed;
  top: 16px;
  left: 16px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  color: var(--text);
  font-size: 17px;
  cursor: pointer;
  z-index: 999;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.mobile-menu-btn:hover {
  border-color: var(--color-success);
  color: var(--color-success);
}
.mobile-menu-btn:active {
  transform: scale(0.94);
}

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

.sidebar.collapsed .sidebar-header span,
.sidebar.collapsed .nav-item span {
  display: none;
}

.sidebar.collapsed .sidebar-header {
  justify-content: center;
  padding: 20px 10px;
}

.sidebar.collapsed .nav-item {
  justify-content: center;
  padding: 14px 10px;
}

.sidebar.collapsed .sidebar-footer {
  padding: 16px 10px;
}

/* Sidebar Header */
.sidebar-header {
  padding: 24px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.sidebar-header i {
  font-size: var(--font-size-2xl);
  filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.2));
}

/* Two-line brand lockup */
.sidebar-header .brand-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  line-height: 1;
}

.sidebar-header .brand-sub {
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  text-transform: none;
}

.sidebar.collapsed .brand-text {
  display: none;
}

/* Sidebar Navigation */
.sidebar-nav {
  flex: 1;
  padding: 12px 0;
  overflow-y: auto;
}

/* Nav section labels (prototype: small uppercase category headers) */
.nav-label {
  font-size: 10px;
  font-weight: var(--font-weight-semibold, 600);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted, var(--text-dim));
  padding: 14px 24px 6px;
}
.nav-label:first-child {
  padding-top: 4px;
}
.sidebar.collapsed .nav-label {
  display: none;
}

/* Nav count badges (prototype: #accounts / #copy-pairs pill on the right) */
.nav-badge {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  line-height: 1;
  color: var(--text-dim);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: var(--radius-full, 999px);
  padding: 3px 7px;
}
.nav-item.active .nav-badge {
  background: var(--color-success-light);
  color: var(--color-success);
  border-color: var(--status-online-border);
}
.sidebar.collapsed .nav-badge {
  display: none !important;
}

/* Navigation Items */
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 1px 12px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  text-decoration: none;
  transition: var(--transition);
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  position: relative;
}

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

.nav-item.active {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
  font-weight: 600;
}

.nav-item.active i {
  color: var(--color-success);
  filter: none;
}

.nav-item i {
  font-size: var(--font-size-lg);
  width: 24px;
  text-align: center;
  transition: var(--transition-fast);
}

/* Sidebar Footer */
.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

/* Collapse Button */
.sidebar-collapse-btn {
  width: 100%;
  padding: 12px;
  background: var(--surface);
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
}

.sidebar-collapse-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-primary);
}

/* Sidebar Bottom Toggle Button — hamburger pill (matches prototype .sidebar-toggle) */
.sidebar-toggle-btn {
  margin: auto 14px 14px;
  width: auto;
  height: 46px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md, 8px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  color: var(--text-dim);
  cursor: pointer;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: all 150ms ease;
  font-size: 16px;
}

.sidebar-toggle-btn:hover {
  background: var(--surface-3);
  color: var(--text);
  border-color: var(--border-strong, rgba(255, 255, 255, 0.15));
}

/* Mobile Sidebar Toggle (legacy — keep for overlay close) */
.sidebar-toggle {
  position: fixed;
  left: 16px;
  top: 16px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  color: var(--text);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: var(--z-sidebar-toggle);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.sidebar-toggle:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--color-primary);
}

/* =================== Responsive =================== */

@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.show {
    transform: translateX(0);
  }

  .sidebar-toggle {
    display: flex;
  }
}