/* ============================================
   DRi Vision - Sidebar Styles
   ============================================ */

.sidebar {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 16px 0;
}

/* ---- Brand ---- */
.sidebar__brand {
  padding: 0 20px 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
}

.sidebar__logo-image {
  width: 100%;
  max-width: 180px;
  height: auto;
  display: block;
}

/* ---- New Session Button ---- */
.sidebar__new-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 8px 12px 4px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--font-size-base);
  font-weight: 500;
  transition: background var(--transition-fast);
}

.sidebar__new-btn:hover {
  background: var(--bg-surface);
}

.sidebar__new-btn svg {
  width: 18px;
  height: 18px;
  color: var(--accent);
}

/* ---- Navigation ---- */
.sidebar__nav {
  flex: 1;
  padding: 4px 12px;
  overflow-y: auto;
}

.sidebar__section-label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 16px 12px 6px;
}

.sidebar__nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.sidebar__nav-item:hover {
  background: var(--bg-surface);
  color: var(--text-primary);
}

.sidebar__nav-item.active {
  background: var(--brand-gradient-soft);
  color: var(--accent);
}

.sidebar__nav-item.active svg {
  color: var(--accent);
}

.sidebar__nav-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.sidebar__nav-item:hover svg {
  color: var(--text-secondary);
}

/* ---- Powered-by Section ---- */
.sidebar__powered {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar__powered-img {
  width: 100%;
  max-width: 160px;
  height: auto;
  display: block;
  opacity: 0.85;
}