.main-wrapper {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left 0.3s ease;
}

.sidebar.collapsed ~ .main-wrapper {
    margin-left: var(--sidebar-collapsed-width);
}

.main-header {
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.app-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-color);
    letter-spacing: -0.01em;
}

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: #666;
    padding: 6px;
    border-radius: 8px;
    transition: background-color 0.2s;
}

.sidebar-toggle:hover {
    background-color: rgba(0,0,0,0.08);
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    width: 90%;
    max-width: 800px;
    margin: 0 auto;
    padding: 1rem 0 2rem;
}