/* Sidebar */
.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

.sidebar {
    display: flex;
    flex-shrink: 0;
    height: 100%;
    transition: width 0.2s ease;
}

.sidebar.collapsed {
    width: 48px;
}

.sidebar:not(.collapsed) {
    width: 328px; /* 48px icons + 280px panel */
}

.sidebar-icons {
    display: flex;
    flex-direction: column;
    width: 48px;
    background: var(--gray-100, #f3f4f6);
    border-right: 1px solid var(--gray-200, #e5e7eb);
    padding: 8px 0;
    gap: 4px;
    align-items: center;
}

.sidebar-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    border-radius: 8px;
    cursor: pointer;
    color: var(--gray-500, #6b7280);
    transition: all 0.15s ease;
}

.sidebar-icon:hover {
    background: var(--gray-200, #e5e7eb);
    color: var(--gray-700, #374151);
}

.sidebar-icon.active {
    background: var(--gray-200, #e5e7eb);
    color: var(--primary-dark, #5661b3);
    box-shadow: inset 3px 0 0 var(--primary-dark, #5661b3);
}

.sidebar-panel {
    width: 280px;
    background: var(--gray-50, #f9fafb);
    border-right: 1px solid var(--gray-200, #e5e7eb);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar.collapsed .sidebar-panel {
    display: none;
}

.sidebar-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--gray-200, #e5e7eb);
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-600, #4b5563);
}

.sidebar-panel-close {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: var(--gray-400, #9ca3af);
    padding: 0 4px;
    border-radius: 4px;
}

.sidebar-panel-close:hover {
    background: var(--gray-200, #e5e7eb);
    color: var(--gray-600, #4b5563);
}

.sidebar-panel-content {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
}

/* Dark theme support */
body[class*="dark"] .sidebar-icons,
body[class*="dark"] .sidebar-panel {
    background: #1e1e1e;
    border-color: #333;
}

body[class*="dark"] .sidebar-icon {
    color: #888;
}

body[class*="dark"] .sidebar-icon:hover {
    background: #333;
    color: #ccc;
}

body[class*="dark"] .sidebar-icon.active {
    background: #333;
    color: #8b9aff;
    box-shadow: inset 3px 0 0 #8b9aff;
}

body[class*="dark"] .sidebar-panel-header {
    border-color: #333;
    color: #ccc;
}